A 3D image signal processing device performs a signal processing on at least one image signal of a first viewpoint signal as an image signal generated at a first viewpoint and a second viewpoint signal as an image signal generated at a second viewpoint different from the first viewpoint. The device includes an image processor that executes a predetermined image processing on at least one image signal of the first viewpoint signal and the second viewpoint signal, and a controller that controls the image processor. The controller controls the image processor to perform an feathering process on at least one image signal of the first viewpoint signal and the second viewpoint signal, the feathering process being a process for smoothing pixel values of pixels positioned on a boundary between an object included in the image represented by the at least one image signal and an image adjacent to the object.
An acoustic signal's high frequency component extracted by an HPF 13 is multiplied in a multiplier 16 by the first coefficient to control the level of the high frequency component. The first coefficient is generated by a coefficient generation portion 21 in accordance with the full band level of an output signal. A low frequency component extracted by an LPF 15 is multiplied in a multiplier 17 by the second coefficient to control the level of the low frequency component. The second coefficient is generated by a coefficient generation portion 24 in accordance with the level of the output signal's low frequency component extracted by an LP filter 22. The level control of the low frequency component of the output signal and the level control of the high frequency component of the output signal are done separately, resulting in the loudness control which is suitable for the characteristic of the acoustic signal.
There is provided an amplifier apparatus and a signal processing apparatus that reduce a delay or distortion of a power supply voltage used for drain modulation. An amplifier apparatus is an amplifier apparatus that performs drain modulation, and includes a printed circuit board having a first surface and a second surface; an amplifier circuit disposed on the first surface; and a modulation power supply circuit that supplies a variable power supply voltage for performing drain modulation, to the amplifier circuit. The modulation power supply circuit has an output portion that outputs the power supply voltage. The amplifier circuit has an input portion to which the power supply voltage is supplied. The output portion is located on the side of the second principal surface of the printed circuit board and is connected to the input portion through a conductor penetrating through the printed circuit board.
Disclosed herein is an analog to digital converter including an analog to digital conversion stage of at least one stage adapted to produce digital data of a value corresponding to a relationship to two analog signals inputted thereto and output two analog residual signals. The analog to digital conversion stage includes a signal production section, a comparison section, a first outputting section, a second outputting section, and a changeover section. The comparison section outputs first digital data when a first comparison result that the voltage value of the first analog signal is lower than the voltage value of the second analog signal is obtained whereas the comparison section outputs second digital data when a second comparison result that the voltage value of the first analog signal is higher than the voltage value of the second analog signal is obtained.
An apparatus for obtaining a parameter describing a variation of a signal characteristic of a signal on the basis of actual transform-domain parameters describing the audio signal in transform-domain includes a parameter determinator. The parameter determinator is configured to determine one or more model parameters of a transform-domain variation model describing an evolution of the transform-domain parameters in dependence on one or more model parameters representing a signal characteristic, such that a model error, representing a deviation between a modeled temporal evolution of the transform-domain parameters and an evolution of the actual transform-domain parameters, is brought below a predetermined threshold value or minimized.
An signal processing apparatus, system and software product for audio modification/substitution of a background noise generated during an event including, but not be limited to, substituting or partially substituting a noise signal from one or more microphones by a pre-recorded noise, and/or selecting one or more noise signals from a plurality of microphones for further processing in real-time or near real-time broadcasting.
A method and apparatus for determining if there is a stream of video signals corresponding with a stream of audio signals. If the sample rate of a digital bitstream including is determined. if the sample rate is 48m kHz (where m is an integer), it is determined that there are video signals corresponding to the audio signals. If the sample rate is 44.1m kHz (where m is an integer), it is determined that there are no video signals corresponding to the audio signals.
An audio signal processing apparatus which includes an input analysis unit which analyses the characteristics of an input signal and generates an input sound feature value; an environment analysis unit which analyses the characteristics of the environmental sound and generates an environmental sound feature value; a mapping control information generation unit which generates mapping control information as control information of amplitude conversion processing to the input signal by application of the input sound feature value and the environmental sound feature value; and a mapping process unit which performs amplitude conversion on the input signal based on a linear or non-linear mapping function determined according to the mapping control information and generates an output signal.
An audio signal processing apparatus includes a tapping detection unit to which an audio signal picked up by a microphone is input and that detects a tapping input operation on the basis of an energy increase/decrease determination process for making a determination as to whether an increase and a decrease of an energy level of low-frequency components of the audio signal occur within a first time period; and a control unit that performs a certain control process that is set for a tapping input operation in response to a tapping input operation being detected by the tapping detection unit.
An audio signal processing circuit includes an encoding circuit, a first audio conversion circuit, and a second audio conversion circuit. The encoding circuit receives pulse coded modulation signals and generates a first audio signal and a second audio signal accordingly. The first audio conversion circuit generates a first pulse width modulation (PWM) signal according to consecutive values of the first audio signal for configuring a first power stage circuit. The second audio conversion circuit generates a second PWM signal according to consecutive values of the second audio signal for configuring a second power stage circuit. The pulse width of the first PWM signal is configured to be substantially equal to the pulse width of the second PWM signal, and the pulse edges of the first PWM signal and the second PWM signal are configured to be separated by a predetermined time interval to mute the audio signal processing circuit.
An audio signal processing device includes a processing unit for convoluting head-related transfer functions with audio signals of a plurality of channels, and the processing unit includes a storage unit for storing data of a double-normalized head-related transfer function by normalizing a normalized head-related transfer function obtained by normalizing a head-related transfer function in a state in which a dummy head or a person is present in a position of the listener with a transfer characteristic in a pristine state in which the dummy head or the person is not present, using a normalized head-related transfer function obtained by normalizing a head-related transfer function in the state in which the dummy head or the person is present with a transfer characteristic in the pristine state, and a convolution unit for reading the data from the storage unit and convoluting the data with the audio signals.
A PC (DAW) records audio signals of input channels outputted from a mixer. When the PC (DAW) newly creates a project for recording, the PC (DAW) obtains channel configuration information from the mixer, creates the same number of tracks as the number of the channels indicated in the channel configuration information, and gives the each track the same name as the corresponding channel indicated in the channel configuration information. It is thereby enabled to easily perform setting at a time of recording.
An audio signal processing device includes two audio signal processing units that serially perform a processing with respect to an input audio signal, and obtain an output audio signal for driving a speaker. One audio signal processing unit of the two audio signal processing units performs, with respect to the input audio signal, a correction process through a filter that realizes a reverse characteristic of an impulse response measured at a first measurement position that is a front position of the speaker. The other audio signal processing unit performs, with respect to the input audio signal, a correction process through a filter that realizes a reverse characteristic of an impulse response measured at a second measurement position different from the first measurement position that is a front position of the speaker.
An audio signal processing device includes: a time-frequency analysis unit performing a time-frequency analysis of an input audio signal; a base factorization unit inputting learning data that is generated in advance based on an audio signal for learning including a sound from a plurality of sound sources and is made with base frequencies corresponding to the respective sound sources and carrying out base factorization of a time-frequency analysis result to the input audio signal inputted from the time-frequency analysis unit by applying a total base frequency that has the base frequencies corresponding to the respective sound sources combined therein to generate a base activity to the input audio signal; and a command identification unit inputting the base activity from the base factorization unit to carry out command identification by performing an identification process of the inputted base activity.
An audio signal processing apparatus and method are provided. The apparatus includes a stability determiner and a sigma-delta modulator. The stability determiner divides a frequency band of an input audio signal into one or more sub-frequency bands, compares a level of the input audio signal for each of the sub-frequency bands with a threshold for the sub-frequency band, and generates a stability determination signal according to a result of the comparison. The sigma-delta modulator sigma-delta modulates the input audio signal according to the stability determination signal, and outputs a modulation signal.
An audio signal processing system including a time-frequency conversion unit which converts an audio signal in time domain into frequency domain in frame units so as to calculate a frequency spectrum of the audio signal, a spectral change calculation unit which calculates an amount of change between a frequency spectrum of a first frame and a frequency spectrum of a second frame before the first frame based on the frequency spectrum of the first frame and the frequency spectrum of the second frame, and a judgment unit which judges the type of the noise which is included in the audio signal of the first frame in accordance with the amount of spectral change.
A consumer audio system has a signal processor coupled for receiving an audio signal. The audio signal is sampled into a plurality of frames. The sampled audio frames are separated into sub-frames according to the type or frequency content of the sound generating source. A time domain processor generates time domain parameters from the separated sub-frames. A frequency domain processor generates frequency domain parameters from the separated sub-frames. The time domain processor or frequency domain processor can detects onset of a note of the audio signal. A signature database has signature records each having time domain parameters and frequency domain parameters and control parameters. A recognition detector matches the time domain parameters and frequency domain parameters of the separated sub-frames to a signature record of the signature database. The control parameters of the matching signature record control operation of the signal processor.
An audio-signal processing device includes a decoding unit that decodes a compressed audio stream to obtain audio signals for a predetermined number of channels; a signal processing unit that generates 2-channel audio signals including left-channel audio signals and right-channel audio signals, on the basis of the predetermined-number-of-channels audio signals; and a coefficient setting unit that sets filter coefficients corresponding to the impulse responses for the digital filters, on the basis of format information of the compressed audio stream. The signal processing unit uses digital filters to convolve impulse responses for paths from sound-source positions of the channels to the left and right ears of a listener with the corresponding predetermined-number-of-channels audio signals and adds corresponding results of the convolutions for the channels to generate the left-channel audio signals and the right-channel audio signals.
The invention provides a method for automated assessment of pruritus comprising detecting movement of a band located on a limb of a subject animal so as to obtain a signal associated with the detection movement, processing the signal associated with the detected movement through an algorithm configured to establish a scratch movement trigger, and translating the processed signal into scratch counts.
To prevent an occurrence of mismatch in processing timing between a PHY layer and a MAC layer that may occur when a synchronization process for inter-base-station synchronization is performed by a PHY processing apparatus. A base station apparatus 1 includes a PHY processing apparatus 5 that performs a communication process related to the PITY layer, and a MAC processing apparatus 6 that performs a communication process related to the MAC layer. The PHY processing apparatus 5 includes a synchronization processing unit 6b that performs a synchronization process for synchronizing a communication frame processing timing of the PITY processing apparatus 5 with a communication frame processing timing of other base station apparatus serving as the synchronization source. The MAC processing apparatus 6 acquires, from the PRY processing apparatus 5, synchronization information for synchronizing a communication frame processing timing of the MAC processing apparatus 6 with the communication frame processing timing of the PHY processing apparatus 5.
A communication apparatus capable of simultaneously receiving signals from a plurality of users by an SC-FDMA scheme reduces its circuit size. A communication apparatus BS1, BS2 is capable of simultaneously receiving signals from a plurality of users by the SC-FDMA scheme. The communication apparatus BS1, BS2 includes a plurality of antennas 1a and 1b; a processing unit 6 that performs multi-antenna signal processing on a plurality of received SC-FDMA signals in a frequency domain, the received SC-FDMA signals being received by the plurality of antennas 1a and 1b; and a user separating unit 7 that demultiplexes a signal obtained through the multi-antenna signal processing, into signals for each user based on user allocation information in the SC-FDMA scheme.
A communication apparatus having a first and second wireless communications modules is provided. The first wireless communications module includes a receiving unit receiving RF signals from an air interface, a signal processing module performing frequency down conversion on the RF signals to generate baseband signals according to a clock signal, and a processor processing the baseband signals. The processor further detects an ON/OFF status of the second wireless communications module to obtain a detection result and compensates for frequency drift of the clock signal according to the detection result.
A method of operation of a communication system includes: generating a filter impulse response and a filter time-domain data with a shortening filter; generating a filter frequency response based on the filter impulse response with a filter frequency response calculator; generating a filter frequency-domain data based on the filter time-domain data with a first process unit; and generating a raw channel impulse response with a filter frequency removal unit for removing the filter frequency response from the filter frequency-domain data.
Systems and methods are described relating to accepting a mobile device location query using digital signal processing and presenting an indication of location of the mobile device at least partially based on receiving the location query. Additionally, systems and methods are described relating to means for accepting a mobile device location query using digital signal processing and means for presenting an indication of location of the mobile device at least partially based on receiving the location query.
In case of a task scheduling processing that assigns plural divided execution program tasks to plural processor units, a multiprocessor system using SOI/MOS transistors employs two processes; one process is to determine an order to execute those tasks so as to reduce the program execution time and the other process is to control the system power upon task scheduling so as to control the clock signal frequency and the body-bias voltage to temporarily speed up the operation of a processor unit that processes another task that might affect the processing performance of one object task if there is dependency among those tasks.
A dental radiology apparatus having: an intraoral sensor comprising a detector including an active pixel array produced using biCMOS technology and converting a received x-ray into at least one analog electrical output signal; an electronic module encapsulated in a case and which has at least one detector activation device, the module linked to the sensor for the transmission to the sensor of a detector activation signal generated in the module and for the transmission to the module of the at least one analog electrical output signal, the module having analog-digital means for converting the at least one analog electrical output signal into at least one digital output signal. A remote processing and display unit of the at least one digital output signal is linked to the electronic module to ensure the transmission to the unit of the at least one digital output signal.
The present disclosure provides devices and methods for the modulation of retinal stimulation and/or retinal signal processing. Such methods may be useful for the diagnosis, treatment or prevention of a disease or disorder. The disclosed methods may comprise visual intervention by using lenses, prisms, mirrors, and/or filters (e.g., occluders) to alter the amount and/or direction of light on to the retina.
A parameter of an adaptive filter is optimized so that inter-symbol interference having an amount corresponding to an inserted fixed filter remains. A digital signal processing apparatus which is included in an optical signal receiver and processes a digital signal converted from an optical signal is provided with: a linear adaptive filter which applies a dynamically controllable linear transfer function to the digital signal; a maximum likelihood sequence decoder which applies a transfer function of a transmission-path model to a plurality of signal sequence candidates to generate a plurality of reference signals, and decodes a reception signal using maximum likelihood sequence estimation which evaluates the differences between an output signal of the linear adaptive filter and the reference signals to estimate the most likely transmission time sequence; a signal regenerator which generates a signal corresponding to decoded data from the maximum likelihood sequence decoder; a feedback distortion adding filter which adds distortion that is equivalent to the transmission-path model used in the maximum likelihood sequence decoder to an output signal of the signal regenerator; and an adaptive equalization filter control block which updates a tap coefficient of the linear adaptive filter in accordance with an LMS algorithm using the difference between a target signal that is an output signal of the feedback distortion adding filter and the digital signal as an error signal.
A digital signal processing architecture supporting efficient coding of memory access information is provided. In an example embodiment, a digital signal processor includes an adjustment value register to store an initial adjustment value and a succeeding adjustment value. The digital signal processor may also include an address generator circuit to retrieve an instruction including a memory address value that is greater than N, and a further instruction including a further memory address value that is less than or equal to N. In addition, the digital signal processor may include a memory, which includes a high bank address space defined by memory locations that are uniquely identified with memory address values greater than N. The address generator circuit may access the high bank address space, using initial adjustment value and the memory address value, or using the succeeding adjustment value and the further memory address value.
Digital signal processing is facilitated utilizing monads. In other words, a digital signal can be processed as a function of at least one monadic operation over the digital signal. Monadic operations can also be integrated into a general-purpose programming language optionally in a declarative syntax to further facilitate programming with respect to digital signals.
The present invention provides a digitally controlled oscillator device capable of reducing noise away from an oscillation frequency, and a high frequency signal processing device. Fractional capacitances are realized using a plurality of unitary capacitor units, for example. In one unitary capacitor unit, one ends of two types of capacitive elements are respectively coupled to oscillation output nodes. On the other hand, in the unitary capacitor units other than the one unitary capacitor unit, one ends of two types of capacitive elements are respectively coupled to a fixed voltage. The other ends of one capacitive elements in all the unitary capacitor units are coupled in common, and the other ends of other capacitive elements are also coupled in common. Turning on and off of respective switches in all the unitary capacitor units are controlled in common.
A signal processing system enhances an audio signal. The audio signal is divided into audio sub-band signals. Some audio sub-band signals are excised. Other audio sub-band signals are processed to obtain enhanced audio sub-band signals. At least a portion of the excised audio sub-band signals are reconstructed. The reconstructed audio sub-band signals are synthesized with the enhanced audio sub-band signals to form an enhanced audio signal.
An input signal conveying encoded information representing one or more audio channels is decoded by determining the configuration of channels represented by the encoded information, obtaining from the channel configuration a channel selection mask that specifies which of the one or more audio channels are to be decoded, extracting encoded information from the input signal, and decoding the extracted encoded information for those audio channels specified in the channel selection mask.
Electric power grid monitoring methods and apparatus are described. According to one aspect, an electric power grid signal processing method includes accessing a plurality of signals which are individually indicative of a characteristic of electromechanical energy within an electric power grid, using the plurality of signals, generating a composite signal, and analyzing the composite signal to provide information regarding an oscillatory mode within the electric power system.
An electrical device having a wireless route function is provided. The electrical device comprises a signal processing module, a wireless route module and a wireless transceiver module electrically connected to the signal processing module and the wireless route module. The signal processing module is configured to generate a first signal. The wireless route module is configured to create a route mode. The wireless transceiver module is configured to build a plurality of first wireless connections with a plurality of first electrical products according to the route mode, and transmit the first signal to the first electrical products via the first wireless connections so that each of the first electrical products executes a first action in response to the first signal.
An event triggering method, system, and computer program product are provided, in which an optical spot trajectory tracking is utilized. Firstly, a cursor at a position on the surface of a screen is moved to a preset position through a first optical spot, then, the projecting of the first optical spot is stopped. Next, it is determined whether the preset position is a preset position of a command. Then, a second optical spot is projected to generate a light-triggered signal, and then a processing unit executes the command according to the light-triggered signal.
A digital signal processing system and method transforms two time-domain signals into the frequency domain. Vector operations are performed upon the frequency-domain data by which signal components unique to one of the input signals are routed to one of the output signals, signal components unique to the other of the input signals are routed to another of the output signals, and signal components common to both signals are routed to a third and optionally to a fourth output signal. The frequency-domain output signals are then transformed back into the time-domain, forming an equivalent number of signals of output data. The vector operations are performed in a manner that preserves the overall information content of the input data.
Disclosed herein is a fluorescence detecting apparatus. The fluorescence detecting apparatus includes a light-receiving element that receives fluorescence emitted from an object to be measured irradiated with laser light modulated at a predetermined frequency and outputs a fluorescence signal at an adjusted output level; a signal processing unit that mixes the outputted fluorescence signal and a modulation signal with the frequency to generate fluorescence data including information about phase and intensity; and an analyzing device that calculates a first phase shift of the fluorescence emitted from the object to be measured with respect to the modulation signal, calculates a second phase shift by correcting the calculated first phase shift depending on conditions for adjusting the output level, and calculates a fluorescence relaxation time of the fluorescence emitted from the object to be measured using the calculated second phase shift.
There are provided a front end module increasing power efficiency used at the time of transmitting and receiving a signal and a wireless signal processing apparatus having the same. The front end module includes: a matching unit matching impedance of a signal path of a signal transmitted and received through an antenna in accordance with a control signal; a signal processing unit receiving power to perform sinal processing on the signal transmitted and received through the antenna; and a controlling unit comparing a current level used by the signal processing unit so as to perform signal processing on the transmitted and received signal with a power level of the signal transmitted and received through the antenna to thereby control impedance matching of the matching unit in accordance with a result of the comparison.
Methods and apparatus are presented for determining position a GNSS rover antenna from single-frequency observations of GNSS signals collected at the antenna over multiple epochs and from correction data for at least one of the epochs. Coded raw data prepared from the single-frequency observations in a binary format are obtained and decoded to obtain decoded raw data. The decoded raw data are used to construct multiple epochs of measurement data of time, range and phase. Correction data are obtained for at least one of the epochs. The measurement data are processed with the correction data in a realtime kinematic positioning engine to obtain a position estimate for each of a plurality of epochs.
Methods and apparatus for processing of GNSS data derived from multi-frequency code and carrier observations are presented which make available correction data for use by a rover located within the region, the correction data comprising: the ionospheric delay over the region, the tropospheric delay over the region, the phase-leveled geometric correction per satellite, and the at least one code bias per satellite. In some embodiments the correction data includes an ionospheric phase bias per satellite. Methods and apparatus for determining a precise position of a rover located within a region are presented in which a GNSS receiver is operated to obtain multi-frequency code and carrier observations and correction data, to create rover corrections from the correction data, and to determine a precise rover position using the rover observations and the rover corrections. The correction data comprises at least one code bias per satellite, a fixed-nature MW bias per satellite and/or values from which a fixed-nature MW bias per satellite is derivable, and an ionospheric delay per satellite for each of multiple regional network stations and/or non-ionospheric corrections. Methods and apparatus for encoding and decoding the correction messages containing correction data are also presented, in which network messages include network elements related to substantially all stations of the network and cluster messages include cluster elements related to subsets of the network.
Methods and apparatus for processing of GNSS data derived from multi-frequency code and carrier observations are presented which make available correction data for use by a rover located within the region, the correction data comprising: the ionospheric delay over the region, the tropospher.pi.c delay over the region, the phase-leveled geometric correction per satellite, and the at least one code bias per satellite. In some embodiments the correction data includes an ionospheric phase bias per satellite. Methods and apparatus for determining a precise position of a rover located within a region are presented in which a GNSS receiver is operated to obtain multi-frequency code and carrier observations and correction data, to create rover corrections from the correction data, and to determine a precise rover position using the rover observations and the rover corrections. The correction data comprises at least one code bias per satellite, a fixed-nature MW bias per satellite and/or values from which a fixed-nature MW bias per satellite is derivable, and an ionospheric delay per satellite for each of multiple regional network stations and/or non-ionospheric corrections. Methods and apparatus for encoding and decoding the correction messages containing correction data are also presented, in which network messages include network elements related to substantially all stations of the network and cluster messages include cluster elements related to subsets of the network.
A system for linking together audio signal producing, signal processing, and ear coupling devices comprising, in an embodiment: (1) an in-ear audio coupling device; (2) hearing aid electronics; (3) an external audio signal generating device; and (4) a module for audio mixing and enhancement.
Disclosed is a high-frequency signal processing device capable of reducing transmission power variation and harmonic distortion. For example, the high-frequency signal processing device includes a pre-driver circuit, which operates within a saturation region, and a final stage driver circuit, which operates within a linear region and performs a linear amplification operation by using an inductor having a high Q-value. The pre-driver circuit suppresses the amplitude level variation of a signal directly modulated, for instance, by a voltage-controlled oscillator circuit. Harmonic distortion components (2HD and 3HD), which may be generated by the pre-driver circuit, are reduced, for instance, by the inductor of the final stage driver circuit.
According to one embodiment, an image signal processing apparatus includes a connecting module, a controller and a display controller. The connecting module is configured to be capable of being connected with a pointer operating device. The controller is configured to be controlled in a state of performing pointer operation with a remote control while being in a non-connected state of a pointer operating device to the connecting module and to be controlled in a state of performing pointer operation with the pointer operating device in a connected state of the pointer operating device to the connecting module. The display controller is configured to display a image which indicates the pointer operating device is connected to the connecting module on a screen during a time period of the connection of the pointer operating device.
When crosstalk is cancelled without considering the contents of an image signal, the effect of the crosstalk cancellation is sometimes obtained effectively, and sometimes not. In order to solve this problem, an image signal processing unit which cancels crosstalk in a three-dimensional image signal includes image adaptation control units (601, 705) which determine a first coefficient based on a first image signal which is one of a left-eye image signal and a right-eye image signal of the inputted three-dimensional image signal, and a second image signal which is the other of the left-eye image signal and the right-eye image signal of the inputted three-dimensional image signal corresponding to the first image signal, and a corrected signal generation unit (711) which corrects the first image signal based on the first coefficient and the second image signal, and generates the corrected first image signal.
Systems and methods for correcting geometric distortion are provided. In one example, an electronic device may include an imaging device, which may obtain image data of a first resolution, and geometric distortion and scaling logic. The imaging device may include a sensor and a lens that causes some geometric distortion in the image data. The geometric distortion correction and scaling logic may scale and correct for geometric distortion in the image data by determining first pixel coordinates in uncorrected or partially corrected image data that, when resampled, would produce corrected output image data at second pixel coordinates. The geometric distortion correction and scaling logic may resample pixels around the image data at the first pixel coordinates to obtain the corrected output image data at the second pixel coordinates. The corrected output image data may be of a second resolution.
There is provided an input device including at least two microphones placed at different positions on a chassis to face different directions on one of space axes, a low-frequency bandwidth extracting part for extracting a low-frequency bandwidth signal from a signal input from the microphones, a phase difference calculating part for calculating a phase difference using the low-frequency bandwidth signal extracted by the low-frequency bandwidth extracting part; and a control signal generating part for generating a control signal based on the phase difference calculated by the phase difference calculating part.
A level of interference affecting signal components of received communication signals is estimated and used to weight the signal components. The signal components in a each of a number of groups of signal components are weighted based on respective interference estimates to thereby adjust signal components for coloured interference, which may vary significantly between different groups of signal components. Each group of signal components may include a single component or components within a relatively narrow sub-band of the communication signals, such as a coherence bandwidth of an Orthogonal Frequency Division Multiplexing (OFDM) signal.
This computation device and method exponentially shortens a computation time of an NP-complete problem or the like mapped into an Ising model by exponentially shortening a computation time of the Ising mode. For each pair of a plurality of slave lasers, by controlling the intensity, the polarization, and the phase of light exchanged between two slave lasers using an attenuator and a wave plate, the magnitude and the sign of pseudo Ising interaction between two slave lasers are implemented. Then, after the plurality of slave lasers arrive at a steady state, by measuring the polarization of light generated by each slave laser with left-handed circular polarization and right-handed circular polarization used as bases, a pseudo spin of each slave laser is measured.
A digital signal processing system comprising: an input terminal to receive an input signal that includes a distorted component and an undistorted component, the input signal having a sampling rate of R; and an adaptive self-linearization module coupled to the input terminal, to perform self-linearization based at least in part on the input signal to obtain an output signal that is substantially undistorted, wherein: the adaptive self-linearization module is to generate a replica distortion signal that is substantially similar to the distorted component, the generation being based at least in part on a target component having a sampling rate of R/L, L being an integer greater than 1; the adaptive self-linearization module includes a first digital signal processor (DSP) that is adapted to obtain a filter transfer function that approximates a system distortion transfer function, and a second DSP that is configured using configuration parameters of the first DSP.
Touch sensing can be accomplished using master/slave touch controllers that transmit drive signals to a touch surface and process sense signals including superpositions resulting from master/slave drive signals. The master/slave can drive and sense different sets of lines, respectively, of the touch surface. A communication link between master/slave can be established by transmitting a clock signal between master/slave, transmitting a command including sequence information to the slave, and initiating a communication sequence from the clock signal and sequence information. The slave can receive/transmit communications from/to the master during first/second portions of the communication sequence, respectively. Touch sensing operations can be synchronized between master/slave by transmitting a command including phase alignment information from master to slave, and generating slave clock signals based on the clock signal and the phase alignment information, such that sense signal processing by master clock signals are in-phase with sense signal processing by slave clock signals.
A memory device which can keep a stored logic state even when the power is off is provided. A signal processing circuit including the memory device, which achieves low power consumption by stopping supply of power, is provided. A memory device includes a logic circuit including a first node and a second node, a first memory circuit connected to the first node, a second memory circuit connected to the second node, and a precharge circuit connected to the first node, the second node, the first memory circuit, and the second memory circuit. When reading data is performed, the precharge circuit outputs a precharge potential to the first node and the second node. The first memory circuit and the second memory circuit each include a transistor in which a channel is formed in an oxide semiconductor film.
A memory device which can keep a stored logic state even when the power is off is provided. A signal processing circuit including the memory device, which achieves low power consumption by stopping supply of power, is provided. The memory device includes a logic circuit including a first node, a second node, a third node, and a fourth node; a first control circuit connected to the first node, the second node, and the third node; a second control circuit connected to the first node, the second node, and the fourth node; a first memory circuit connected to the first node, the first control circuit, and the second control circuit; and a second memory circuit connected to the second node, the first control circuit, and the second control circuit.
In a memory element including a pair of inverters, a capacitor which holds data, and a switching element which controls accumulating and releasing of electric charge of the capacitor are provided. For example, one electrode of the capacitor is connected to a first node, which is an input or output terminal of one of the pair of inverters, and the other electrode of the capacitor is connected to one electrode the switching element. The other electrode of the switching element is connected to a second node, which is the output or input terminal of the one of the pair of inverters. With such a connection structure, the absolute value of the potential difference between the first node and the second node at the time of data restoring can be large enough, whereby errors at the time of data restoring can be reduced.
Methods and apparatus are provided for processing a data value in a read channel of a memory device. The data value provided to a general purpose processor for processing. The data value is not decoded data and may comprise one or more of a raw data value and an intermediate data value. The data value can be provided to the general purpose processor, for example, upon a detection of one or more predefined trigger conditions. A data value can be obtained from a memory device and then be redirected to a general purpose processor. The data value is not decoded data. The redirection can be conditionally performed if one or more predefined bypass conditions exist. The general purpose processor is optionally time-shared with one or more additional applications.
An access point supports communication in a femto cell of a cellular communication network. The access point comprises transceiver circuitry arranged to enable communication with at least one wireless communication unit located within the femto cell, and a signal processing logic module comprising an access point controller interface logic module arranged to enable communication between the access point and an access point controller. The signal processing logic module further comprises a gateway logic module arranged to provide an interface between the at least one wireless communication unit located within the femto cell and a packet data network.
A method for providing portability of partially accelerated signal processing applications may include receiving target information descriptive of accelerated function availability of a target hardware platform, receiving source code for an application and defining functions associated with the application, at least one of the functions being capable of accelerated implementation in the target hardware platform, and causing compiling of an executable code including either an at least partially hardware accelerated implementation or a processor-based implementation based on the target information. A corresponding apparatus and computer program product are also provided.
A method and apparatus for storing a broadcast program are provided. The apparatus includes: a signal processing unit which generates an audio/video (A/V) file, an application file, and a first electronic program guide (EPG) file by appropriately processing a plurality of A/V signals, application information, and EPG information, respectively, which are included in an input broadcast program transport stream; a synchronization unit which receives the A/V file, the application file, and the first EPG file from the signal processing unit, generates storage information for the A/V file and storage information for the application file, and converts the first EPG file into a second EPG file comprising the storage information for the A/V file and the storage information for the application file; and a storage unit which stores the A/V file, the application file, and the second EPG file.
A method and a device provide signal processing. The method contains the steps of separating a pilot signal from an analog signal, reducing or compensating a noise based on a local oscillator laser by demodulating the pilot signal, processing the demodulated pilot signal, and combining the processed demodulated pilot signal with the analog signal. Furthermore, a method for signal processing at a transmitter, according devices and a communication system are described.
A system and method for estimating velocity of a mobile station in a wireless communication system using time-frequency signal processing and a geographical database. The geographical database is used for prediction of ray trajectory and ray power to provide an estimate of propagation delay associated with database points.
A method for determining the composition of fluids flowing through pipes from noninvasive measurements of acoustic properties of the fluid is described. The method includes exciting a first transducer located on the external surface of the pipe through which the fluid under investigation is flowing, to generate an ultrasound chirp signal, as opposed to conventional pulses. The chirp signal is received by a second transducer disposed on the external surface of the pipe opposing the location of the first transducer, from which the transit time through the fluid is determined and the sound speed of the ultrasound in the fluid is calculated. The composition of a fluid is calculated from the sound speed therein. The fluid density may also be derived from measurements of sound attenuation. Several signal processing approaches are described for extracting the transit time information from the data with the effects of the pipe wall having been subtracted.
A pre-amplifier (column region unit) of a solid-state imaging device including a pixel-signal controller. The pixel-signal controller, for each vertical signal line, detects the level of each pixel signal independently by a pixel-signal detector on the output side of a pixel-signal amplifier, and sets a gain independently to the pixel-signal amplifier according to the level of the signal. At a subsequent stage of the solid-state imaging device, an analog-to-digital (A/D) converter and a signal extending unit are provided. The A/D converter digitizes a pixel signal, and the digitized pixel signal is corrected by a gain set to the pixel-signal amplifier with reference to a classification signal from the pixel-signal detector, so that the dynamic range of signals of one screen is extended.
A method, an apparatus, and a system for feedback control of a coherent receiver are provided. The method for feedback control of the coherent receiver includes: obtaining a feedback control quantity according to a digital signal converted by an Analog-to-Digital Converter (ADC); and adjusting a signal amplitude output by a Transimpedance Amplifier (TIA) and a direct current component of an offset T device according to the feedback control quantity, until an analog signal input into the ADC is in a sampling range of the ADC, where the TIA is serially connected to the offset T device and then is connected to the ADC. Present invention has the following advantages: enabling the analog signal to adapt to the ADC sampling best, maximizing an effective information quantity sampled by the ADC and better supporting subsequent processing of a Digital Signal Processing (DSP) unit, thereby improving a coherent receiving performance.
An object (e.g., a driver's license) is tested for authenticity using imagery captured by a consumer device (e.g., a mobile phone camera). Corresponding data is sent from the consumer device to a remote system, which has secret knowledge about features indicating object authenticity. The phone, or the remote system, discerns the pose of the object relative to the camera from the captured imagery. The remote system tests the received data for the authentication features, and issues an output signal indicating whether the object is authentic. This testing involves modeling the image data that would be captured by the consumer device from an authentic object--based on the object's discerned pose (and optionally based on information about the camera optics), and then comparing this modeled data with the data sent from the consumer device. A great variety of other features and arrangements are also detailed.
The mirror swing range control device is capable of reducing a production cost of the control device and precisely adjusting a swing range of a mirror section. The mirror swing range control device comprises: a swing range detecting section for detecting a swing range of the mirror section swung by driving the vibration source; a signal processing section for arithmetically processing a detection signal, which is generated by the swing range detecting section, so as to generate an inverted detection signal; a standard value generating section for generating a standard value signal indicating a standard time interval; a comparing section for adding the inverted detection signal to the standard value signal, integrating calculated errors and generating an error signal; and a swing range adjusting section for performing feedback control, in which a cancelling signal is applied to the drive circuit for a prescribed time when the comparing section generates the error signal, so as to cancel an increase-decrease value of the error signal.
In a motion detection device that detects motion from two frames of a video signal, a pattern matching detector determines pattern similarity between pixel blocks centered on a pixel of interest in the two frames to detect pattern motion. An edge detector detects edge presence and direction in a vicinity of the pixel of interest. A frame difference detector generates a smoothed frame difference signal for the pixel of interest. The smoothing is carried out within appropriate extents selected according to the detected pattern motion and edge direction. A motion information corrector generates motion information for the pixel of interest from the frame difference signal. Appropriate selection of the smoothing extent reduces motion detection mistakes. The motion information is useful in motion adaptive video signal processing.
A motion vector detector 2 detects, using pixel data in at least two real frames in an input video signal, a motion vector MV1 necessary for generating interpolated pixel data forming an interpolated frame to be inserted between the two real frames. A motion vector corrector 4 corrects the motion vector MV1 to decrease the magnitude of motion vector MV1 when the magnitude of motion vector MV1 exceeds a predetermined threshold, and outputs it as a motion vector MV3.
A signal intelligence system comprising a plurality of software components that are programmable to provide a signal intelligence function. The signal intelligence system includes a processor system having a plurality of interconnected processor devices and a plurality of processor managers that are connected to the processor devices and are configured to control software components associated with the processor devices. Further, the signal intelligence system has a framework manager that is configured to interact with the plurality of processor managers to control the processor devices and effectuate the signal intelligence function
An observation signal processing apparatus transmits a pulse signal as a search signal, generates an observation value based on a reflected signal against a target and a delay modulation pulse signal, and performs coherent integration on the observation value to output an integration value. The apparatus includes a section for determining a coherent integration count, a section for transmitting pulse signals equivalent to the coherent integration count, a section for calculating a phase correction amount based on an estimated relative speed, and a section for performing phase-weighted coherent integration on observation values for the number of times equivalent to the coherent integration count based on the phase correction amount.
A system includes a signal processing module and a control module. The signal processing module receives a first clear channel assessment (CCA) signal for a first sub-channel of a communication channel, increases a pulse width of the first CCA signal by a predetermined period of time, and generates a second CCA signal. The control module receives the second CCA signal and a third CCA signal for a second sub-channel of the communication channel. The control module transmits data via one of the second sub-channel and the communication channel based on the second and third CCA signals.
According to one embodiment, a pickup signal processing apparatus includes microphones, a sound determining unit, a signal level calculating unit, a setting unit, and a calculating unit. The sound determining unit determines whether pickup signals picked up by the microphones are signals from a neighboring sound source or a background noise signal. The signal level calculating unit calculates the signal levels for the microphones. The setting unit sets a gain value of at least one microphone and reduces a difference between the signal levels for the microphones on the basis of the signal levels for the microphones, when determined that the pickup signal is the background noise signal. The calculating unit multiplies the pickup signal of the at least one microphone by the gain value set by the setting unit.
An integrated circuit device comprising at least one signal processing module and a power gating control module arranged to control gating of at least one power supply to at least a part of the at least one signal processing module. The power gating control module is arranged to receive at least one operating parameter; configure at least one power gating setting of the power gating control module based at least partly on the at least one received operating parameter; and apply power gating for at least part of the at least one signal processing module in accordance with the at least one configured power gating setting.
There is provided a radar apparatus. A first determining section is configured to determine whether there exists a continuing stationary target at a side of a lane in which a vehicle is traveling. A second determining section is configured to determine whether there exists a moving target in a specific range which is in front of the vehicle and on an opposite side of the stationary target with respect to a position of the vehicle. A changing section is configured to change position information of the moving target to a position obtained by folding back a specific position which is the position of the moving target in the specific range with the stationary target therebetween in a case where the stationary target exists and the moving target exists in the specific range. The changed position is used for deriving the position information of the target.
A rate control method for multi-layered video coding, a video encoding apparatus and a video signal processing system employing the rate control method. In the rate control method for multi-layered video coding, encoding statistical information is generated based on the result of encoding input video data on a first layer. A second rate controller generates a plurality of quantization parameters to be used when encoding is performed on a second layer, based on the encoding statistical information and/or region of interest (ROI) information. Target numbers of bits that are to be respectively assigned to regions of a second layer are determined based on the encoding statistical information and/or ROI information, and the input video data is encoded at the second layer, based on the target numbers of bits.
A sensor signal processing device includes an AD conversion section, a filter section, a timing signal generation section, and an arithmetic section. The timing signal generation section generates a signal synchronized with a crank angle of an engine based on a signal indicating the crank angle and generates a data acquisition timing signal by compensating the signal synchronized with the crank angle with a delay time of the filter. The arithmetic section acquires a plurality of sensor signals, which is transmitted from a sensor, converted from an analog signal to a digital signal by the AD conversion section, and filtered by the filter section, in a term before and after receiving the data acquisition timing signal and generates a data synchronized with the data acquisition timing signal.
The present invention provides a system and method for representing quasi-periodic (\"qp\") waveforms comprising, representing a plurality of limited decompositions of the qp waveform, wherein each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the qp waveform. These decompositions are stored into a data structure having a plurality of attributes. Optionally, these attributes are used to reconstruct the qp waveform, or patterns or features of the qp wave can be determined by using various pattern-recognition techniques. Some embodiments provide a system that uses software, embedded hardware or firmware to carry out the above-described method. Some embodiments use a computer-readable medium to store the data structure and/or instructions to execute the method.
A signal processing apparatus for displaying an input image in the sate in which a part of the image is enlarged, displays an enlarged image obtained by enlarging a part of a designated object in the input image so that the enlarged image is superimposed at a position in accordance with the position of the designated object.
A signal processing apparatus includes a first audio output unit configured to output audio of a first audio signal input from a first signal input line, a first pickup unit connected to the first signal input line, a second audio output unit configured to output audio of a second audio signal input from a second signal input line, a second pickup unit connected to the second signal input line, a connecting line that connects the above units to ground, and a first reducing unit configured to at least reduce a first sound leakage signal, being the first audio signal leaking into the second signal input line from the first audio output unit, by using the first audio signal, or reducing a second sound leakage signal, being the second audio signal leaking into the second signal input line from the second audio output unit, by using the second audio signal.
The present invention refers to a signal processing apparatus and its method of operation. The apparatus comprises a phonocardiogram interface adapted to receive a phonocardiogram signal captured according to a first set of capturing properties, a processor adapted to analyze the phonocardiogram signal to determine an analysis result for the phonocardiogram signal and a confidence value of the determined analysis result, and a flow control adapted to determine, whether a subsequent capture of the phonocardiogram signal according to a second set of capturing properties is likely to improve an accuracy of the determined analysis result. If applicable the flow control coordinates the subsequent capture of the phonocardiogram signal according to the second set of capturing properties The invention also refers to a corresponding computer program product. Also described is a signal processing apparatus comprising a user interface adapted to present the captured phonocardiogram signal to a user and to receive a user correction. Based on the user correction the phonocardiogram signal may be reanalyzed
A unified system of programming communication. The system encompasses the prior art (television, radio, broadcast hardcopy, computer communications, etc.) and new user specific mass media. Within the unified system, parallel processing computer systems, each having an input (e.g., 77) controlling a plurality of computers (e.g., 205), generate and output user information at receiver stations. Under broadcast control, local computers (73, 205), combine user information selectively into prior art communications to exhibit personalized mass media programming at video monitors (202), speakers (263), printers (221), etc. At intermediate transmission stations (e.g., cable television stations), signals in network broadcasts and from local inputs (74, 77, 97, 98) cause control processors (71) and computers (73) to selectively automate connection and operation of receivers (53), recorder/players (76), computers (73), generators (82), strippers (81), etc. At receiver stations, signals in received transmissions and from local inputs (225, 218, 22) cause control processors (200) and computers (205) to automate connection and operation of converters (201), tuners (215), decryptors (224), recorder/players (217), computers (205), furnaces (206), etc. Processors (71, 200) meter and monitor availability and usage of programming.
A signal processing apparatus includes a signal generating block arranged to generate a target estimated signal of a specific signal component in an input signal. The signal generating block includes a reference signal generating circuit, a signal processing circuit, and a signal adjusting circuit. The reference signal generating circuit is arranged to generate a reference estimated signal for the specific signal component in the input signal. The signal processing circuit is coupled to the reference signal generating circuit, and arranged to process the reference estimated signal and accordingly generate a signal processing result. The signal adjusting circuit is coupled to the signal processing circuit and the reference signal generating circuit, and arranged to output the target estimated signal by adjusting the reference estimated signal according to the signal processing result.
Provided are a signal processing apparatus and a signal processing method. The signal processing method include receiving a serial signal including an information frame including channel information and data information of a corresponding channel, extracting a clock signal from the serial signal, generating a load signal when a clock count reaches a maximum clock count by calculating the clock signal; converting the serial signal to a parallel signal according to the load signal, and changing the maximum clock count by comparing parallel-converted parallel channel information with a load count indicating the number of local signals.
The present invention relates to a signal processing apparatus and a signal processing method, an encoder and an encoding method, a decoder and a decoding method, and a program capable of reproducing music signal having a better sound quality by expansion of frequency band. An encoder sets an interval including 16 frames as interval section to be processed, outputs high band encoded data for obtaining the high band component of an input signal and low band encoded data obtained by encoding the low band signal of the input signal for each section to be processed. In this case, for each frame, a coefficient used in estimation of the high band component is selected and the section to be processed is divided into continuous frame segments including continuous frames from which the coefficient with the same section to be processed is selected. In addition, high band encoded data is produced which includes data including information indicating a length of each continuous frame segment, information indicating the number of continuous frame segments included in the section to be processed and a coefficient index indicating the coefficient selected in each continuous frame segment. The present invention is applicable to the encoder.
The present invention relates to a signal processing apparatus and a signal processing method, an encoder and an encoding method, a decoder and a decoding method, and a program capable of reproducing music signal having a better sound quality by expansion of frequency band. A high band decoding circuit decodes high band encoded data outputs a coefficient table having coefficients for the respective high band sub-bands, which are specified by a coefficient index obtained as a result of decoding. A decoding high band sub-band power calculation circuit calculates decoded high band sub-band powers for the respective high band sub-bands based on low band signals and the coefficient table, and a decoded high band signal production unit produces decoded high band signals from these decoded high band sub-band powers. At this time, an extension and reduction unit newly produces or deletes coefficients of the coefficient table for the respective sub-bands to correspond to the number of sub-bands of the calculated decoded high band sub-band powers, thereby to extend or reduce the coefficient table. The present invention can be applied to a decoder.
One signal processing apparatus includes a sigma-delta modulating block and a notch filtering block. The sigma-delta modulating block is arranged to perform a sigma-delta modulation upon a signal input and accordingly generate a signal output. The notch filtering block is arranged to perform a notch filtering operation upon the signal output for generating a filtered signal output. Another signal processing apparatus includes a sigma-delta modulating block and a notch filtering block. The sigma-delta modulating block is arranged to perform a sigma-delta modulation upon a signal input and accordingly generate a signal output. The notch filtering block is enabled for performing a notch filtering operation upon the signal output when the signal processing apparatus operates in a first operational mode, and the notch filtering block is disabled when the signal processingapparatus operates in a second operational mode.
There is provided a signal processing apparatus including a signal processor for processing a signal to be received from or to be transmitted to a vibrator constituting a probe, and a controller for controlling a signal processing parameter of the signal processor to lower a performance of the signal processor when a motion parameter showing a characteristic of a motion of the probe is large.
A signal processing apparatus performs predetermined signal processing on an image signal output from an image sensor having a pixel array in which a plurality of pixels are arrayed in a direction along a row and a direction along a column. The signal processing apparatus comprises: a storage unit that stores characteristic information indicating characteristics of signal component mix in each pixel from adjacent pixels according to the pixel position in the pixel array of the image sensor; and a correction unit that calculates a correction coefficient according to the position of a pixel for correction in the pixel array from the characteristic information, and corrects an output image signal of the pixel for correction based on an output image signal of adjacent pixels of the pixel for correction and the calculated correction coefficient.
Provided is a signal processing apparatus, including an input unit into which first image data and second image data are input, the first image data and the second image data being obtained by capturing a predetermined subject with an imaging unit and having mutually different states of blurring; a distance information calculation unit that calculates first distance information in accordance with a position in a depth direction of the subject based on the first image data and the second image data; and a distance information correction unit that calculates second distance information by performing, on the first distance information, processing to correct a deviation of the blurring caused by a mismatch between an image-forming plane of the subject and an imaging plane of the imaging unit.
Provided is a signal processing apparatus configured to calculate an angle of a detection point corresponding to an object on the basis of received signals of a plurality of array antennas. A beat signal is generated by a difference between a transmitted signal and a received signal. Digital data is derived through AD conversion of the beat signal. The digital data is divided into a plurality of data groups. A fast Fourier transform is performed on the data groups to acquire a plurality of transformed data corresponding to the number of the data groups. The transformed data are divided into a plurality of sets, correlation matrices for the respective sets are acquired, and an average value of the correlation matrices is calculated. The angle of the detection point is calculated on the basis of the average value of the correlation matrices.
A signal processing apparatus includes a signal processing unit configured to carry out signal processing on a single-carrier signal and a multi-carrier signal by making use of a plurality of common filters shared by the single-carrier signal and the multi-carrier signal.
Apparatuses and methods for analyzing at least one characteristic of a test signal coupled out from one of a plurality of cable lines by a coupling unit to determine whether that test signal has propagated directly to the coupling unit via a single cable line or has propagated indirectly to the coupling unit via one or more coupling paths between different cable lines. The determination of whether the test signal has propagated directly to the coupling unit via a single cable line or has propagated indirectly to the coupling unit via one or more coupling paths between different cable lines, may advantageously be used for operational or diagnostic purposes, e.g. to identify interconnections between ports in a network.
A signal processing circuit includes a memory and a control portion configured to control the memory. The control portion includes a volatile memory circuit including data latch terminals, a first non-volatile memory circuit electrically connected to one of the data latch terminals, a second non-volatile memory circuit electrically connected to the other of the data latch terminals, and a precharge circuit having a function of supplying a potential that is a half of a high power supply potential to the one and the other of the data latch terminals. Each of the first non-volatile memory circuit and the second non-volatile memory circuit includes a transistor having a channel formation region including an oxide semiconductor and a capacitor connected to a node that is brought into a floating state by turning off the transistor.
A signal processing circuit is disclosed, comprising a first node for coupling with a first antenna, a second node for coupling with a second antenna, a third node for receiving a first signal from a transmitting circuit, a fourth node for coupling with a receiving circuit, a signal dividing circuit, a phase shifting circuit, and a signal combining circuit. The signal dividing circuit divides the first signal into a second signal and a third signal, and transmits the second signal to the first antenna. The phase shifting circuit shifts the phase of the third signal to generate a fourth signal for canceling at least part of a coupled signal between the third node and the fourth node. The signal combining circuit combines the fourth signal and a fifth signal received from the second antenna, and transmits the combined signal to the receiving circuit.
A signal processing device (500) that processes sharpening of an image with respect to an input signal (SR) that represents the image and outputs an output signal (SO) that represents the sharpened image includes an oversampler (200) that generates an oversampled signal (S200) by interpolating a signal in order to increase a sampling frequency with respect to in input signal (SR), and a sharpening processing unit (100) to which the oversampled signal (200) is inputted and which generates a sharpened signal (S100) which is nonlinearly monotonically increased over a wide range high band frequency components in the oversampled signal (S200), and the sharpened signal (S100) is outputted as the output signal (SO).
There is provided a signal processing device. Data indicative of a past sensing point, and a counter value indicative of existence possibility of the past sensing point are stored in a storage. Whether the past sensing point has continuity to a recent sensing point is determined. The counter value associated with the past sensing point determined as having no continuity to the recent sensing point is decreased. The data is deleted from the storage means when the counter value becomes less than a first threshold value. The sensing point possibly detected by pairing peak signals obtained in first and second periods in a wrong manner is identified as a specific sensing point. A first value is decreased from the counter value associated with the past sensing point, and a second value different from the first value is decreased from the counter value associated with the specific sensing point.
Provided is a signal processing device including: an adaptive filter; a PRML circuit for sequentially generating binarized data from a filtered reproduced waveform by sampling at sampling points in a period based on a clock signal and sequentially generating a partial response waveform which is to be the target waveform from the binarized data; a calculating unit for sequentially calculating first phase errors from a difference between the target waveform and the filtered reproduced waveform; a limiting unit for outputting second phase errors by excluding a specific phase error from the first phase errors; and a clock generating unit for generating the clock signal of a frequency corresponding to the second phase errors; wherein the specific phase error includes a phase error at a time when the partial response waveform reaches a specific level which excludes at least a level not less than a predetermined amplitude level.
A signal processing device that identifies a piece of music of an input signal by comparing the input signal with a plurality of reference signals including only a piece of music includes a weight distribution generating section that generates a weight distribution corresponding to a likeness to music in regions of the input signal transformed into a time-frequency domain, and a similarity calculating section that calculates degrees of similarity between a feature quantity in the regions of the input signal transformed into the time-frequency domain and feature quantities in the regions of the reference signals transformed into the time-frequency domain on the basis of the weighting based on the weight distribution.
This disclosure relates to a signal processing device, a signal processing method, and a receiving device that are capable of detecting response information at a high degree of accuracy from a carrier signal that is load-modulated based on the response information. A positive DC generating unit 61 generates a positive threshold based on a load-modulated carrier signal. A positive selecting unit 62 compares the voltage of the carrier signal with the positive threshold, and outputs the value of the larger one to an adding unit 65. A negative DC generating unit 63 generates a negative threshold based on the load-modulated carrier signal. A negative selecting unit 64 compares the voltage of the carrier signal with the negative threshold, and outputs the value of the smaller one to the adding unit 65. The adding unit 65 adds the output of the positive selecting unit 62 and the output of the negative selecting unit 64, and outputs the addition result to an IQ detecting unit 53. As a result of the combining, a signal that has smaller Vpp than that of the original carrier signal and maintains the fluctuation portions of the voltage is obtained. This disclosure can be applied to non-contact communication systems.
A signal processing device includes: an enhancement countermeasure unit in which when a linear matrix gain using a linear matrix coefficient is multiplied to a pixel value of an image signal output for each channel by a pixel of an imaging device, whereby an enhancement of color occurs in an image based on the image signal, the image signal in which a portion where the enhancement of color occurs is corrected for each channel is output based on a color-difference component separated from the result of multiplication of the linear matrix coefficient to the pixel value for each channel and a luminance calculated from the result.
A system is configured to monitor a received signal. In response to detecting a fault condition associated with the received signal, the system sets a fault status indicator to indicate occurrence of the detected fault condition. The system sets a state of the fault status indicator for at least a predetermined amount of time to indicate occurrence of the detected fault condition. Subsequent to setting the fault status indicator for at least the predetermined amount of time to indicate the occurrence of the detected fault condition, the system monitors integrity of the signal again. After the predetermined amount of time, in response to detecting that there is no longer a fault associated with the monitored signal, the system modifies the fault status indicator to indicate absence of the fault condition.
A capacitive sensor includes a transmit electrode configured to provide an alternating electric field to a sensor; one or more receive electrodes for detecting variations in the alternating electric field; and an adaptive frequency adjustment unit configured to adjust an operating frequency of the alternating electric field responsive to detection of a noise measure, such as noise power.
The present invention includes a guided microwave spectroscopy system (1) that eliminates the need for an automatic gain control feature by providing multiple signal processing paths having differing fixed voltage gains. An emitted signal which exits a test chamber (2) containing a material under test is simultaneously amplified by at least a first fixed gain amplifier (4) and a second fixed gain amplifier (7). The output signal of each amplifier is separately digitized and then normalized for further digital signal processing by a computer (13) in order to determine parameters of the material under test which may have variable microwave radiation characteristics that are a function of the frequency of the signal emitted into the test chamber. During the signal processing step a system clock (121) causes the computer to sample only an integral number of complete output signal cycles. A calibration protocol (136-154) is conducted based on laboratory samples of each potential material to be processed by the system (1).
A method, receiver and program for equalising digital samples of a radio signal received over a wireless communications channel. The method comprises: receiving digital samples of the radio signal; calculating equaliser coefficients in the frequency domain; transforming the equaliser coefficients from the frequency domain to the time domain; and equalising the digital samples in the time domain using the transformed time domain equaliser coefficients.
A signal processing method that includes inputting sample values of a signal and considering the signal to have a plurality of portions. For each portion, a predetermined function is fitted to the sample values of that portion of the signal by calculating values of coefficients for that predetermined function. At least one statistical information function is evaluated for the signal to determine statistical information about the signal and the calculated coefficient values are used so that the form of the statistical information function has been determined for the predetermined function used to fit the signal portion and further includes using the statistical information obtained about the signal to process the signal.
A signal processing technology for allowing a repeater to transmit a signal received from an external apparatus to a terminal is provided. In a satellite system, a signal transmitted from a satellite or transmitted to a satellite is subject to a low order modulation, and a terrestrial repeater performs a high order modulation on signals and retransmits the signals.
Disclosed are a signal processing method using a code cycle, a correlator, and a software signal receiver. An exemplary embodiment of the present invention provides a signal processing method of a satellite navigation signal, including: a frequency generating step generating a predetermined frequency component for removing a frequency component of sample data; a code generating step generating a predetermined code component for removing a code component of the sample data and increasing a sample count when the predetermined code component is generated; and a correlation value generating step, if the sample count is equal to a count per unit time, generating a correlation value between the generated predetermined frequency component and the generated predetermined code component by reading a sample data block.
Provided is a noise suppressing technology capable of suppressing various noises including unknown noises without storing information relating to a large number of noises in advance. Noises in a degraded signal are suppressed and noise information is generated on the basis of a noise suppression result. The noises in the degraded signal are suppressed using the generated noise information.
[Object] To provide a signal processing apparatus which may always perform measurement with constant precision and performs phase measurement with high filtering performance and a small amount of computation even when a temperature of a fluid to be measured changes, air bubbles are mixed into the fluid to be measured, or the fluid to be measured rapidly changes from a gas to a liquid. [Solving Means] In a Coriolis flowmeter in which at least one flow tube or a pair of flow tubes which is included in a measurement flow tube is operated by a driving device using a vibrator to alternately drive the at least one flow tube or the pair of flow tubes, and a phase difference and/or a vibration frequency proportional to a Coriolis force acting on the at least one flow tube or the pair of flow tubes are/is detected by a velocity sensor or an acceleration sensor which is a vibration detection sensor when the at least one flow tube or the pair of flow tubes is vibrated, to thereby obtain a mass flow rate and/or density of a fluid to be measured, the signal processing apparatus includes: a transmitter (90) for transmitting and outputting a modulatable frequency signal; a frequency conversion unit (85) for performing frequency conversion to add (or subtract) an output frequency (FX) of the transmitter (90) to (or from) an input frequency from input signals of the phase difference and/or the vibration frequency proportional to the Coriolis force acting on the pair of flow tubes, which is detected by an electromagnetic pick-off, and controlling the transmitter (90) so that frequency values after the frequency conversion are constant; and a phase difference measurement section (95) for measuring a phase difference between frequency signals converted by and output from the frequency conversion unit (85).
A signal processor performs a signal transform of a signal, and comprises a signal demodulator for demodulating said signal by a first chirp signal having a first chirp rate to obtain a reduced bandwidth chirped signal, a filter for filtering the reduced bandwidth chirped signal and delaying the reduced bandwidth chirped signal by an interval proportional to a reciprocal of said first chirp rate, a signal modulator for modulating said filtered signal by a second chirp signal having a second chirp rate to obtain an increased bandwidth chirped signal and to provide a time domain output spectrum of said signal, and wherein each of said first chirp signal and said second chirp signal is a complex signal representing a linear frequency modulated chirp.
In the field of communication, this application discloses a signal processing method, device, and system of bonded DSL channels. A signal processing method of bonded DSL channels: sending a pilot sequence to a receiving end through bonded channels; receiving, through the bonded channels, clipped error sample fragments returned by the receiving end, where the receiving end constructs a clipped error sample according to an error of a received signal and fragments the clipped error sample to acquire the clipped error sample fragments; aggregating the received clipped error sample fragments into a clipped error sample; and calculating a pre-encoding coefficient according to the pilot sequence and the aggregated clipped error sample, where the pre-encoding coefficient is used to perform pre-encoding processing on a signal before the signal is sent.
A signal processing system including a DAC, a comparing unit, and a control unit is provided. The DAC receives a digital input and generates an output voltage. The comparing unit receives the output voltage and compares the output voltage with a reference voltage to output an output value. The control unit receives the output value and accordingly generates the digital input in a manner of value mapping through firmware or software to calibrate the DAC. Furthermore, a self-calibration digital-to-analog converting method is also provided.
A signal processing system is provided. The signal processing system includes: a peak-to-average ratio (PAPR) reducer that reduces a peak-to-average ratio (PAPR) of an input signal x(n), a clipping noise processing system that generates an equivalent clipping noise signal .epsilon.*.sub.CL(n) that is defined as a weighted sum of a weighted in-band clipping signal W.sub.IN*.epsilon..sub.CL,IN(n) and a weighted out-of-band clipping signal W.sub.OUT*.epsilon..sub.CL,OUT(n) to be used for determining functions of a predistorter that suppresses out-of-band spectrum caused during peak-to-average power reduction process and for generating an input signal of an amplifier which input signal has reduced clipping noise and be distorted so as to compensate nonlinearity of the amplifier.
Signal processing under attenuated transmission conditions. Within an orthogonal signal space, the number of orthogonal signals that are used to transmit information from a transmitter to a receiver is reduced and the transmitted power of each of the now remaining orthogonal signals is modified; this may involve increasing the power of all of the remaining orthogonal signals equally or alternatively modifying them individually. The same modulation used before the reduction may also be used afterwards; within communication systems having multiple transmitter-receiver paths, this will ensure that the communication system's throughput and efficiency will remain unchanged even when one (or more) transmitter-receiver paths are highly attenuated. In addition, robust mode operation is provided for ranging and registering of transmitter devices when entering the communication system. In addition, the unused orthogonal signals may be employed to support interference cancellation of those orthogonal signals that are used to transmit information.
A signal processor includes a receiver to receive data to be transmitted to an external device, a signal generator to process de-emphasis of the received data using a preset de-emphasis value and to output the resultant data to the external device, an information acquisition unit to receive equalizer information from the external device, and a controller to control the de-emphasis value of the signal generator based on the received equalizer information.
Disclosed herein is a signal processor including: a plurality of parallel-connected variable gain amplification sections with variable gains; and a control section adapted to control the potentials of control terminals of each of the variable gain amplification sections and make transitions in the control terminal potentials according to different input signal levels.
A slide type mobile terminal and a method for processing signals thereof are disclosed in the present invention, wherein, a built-in auxiliary antenna is installed in an upper slide portion (10) of the slide type mobile terminal, meanwhile corresponding signal conversion modules (122, 312) are added to the upper slide portion (10) and a lower slide portion (30) respectively, which is used for converting an external high-frequency signal received by the built-in auxiliary antenna or an internal high-frequency signal generated by a main printed circuit board (PCB) from a single-ended signal to a differential signal, which are transmitted between the upper slide portion (10) and the lower slide portion (30) by a flexible printed circuit board (FPC) (20), so that the high-frequency signal is transmitted between the upper slide portion (10) and the lower slide portion (30) in form of differential signal.
According to an embodiment, a solid-state imaging device includes: an imaging device including an imaging area including a plurality of pixel blocks each of which includes a plurality of pixels; an image formation lens forming an image on an image formation plane by using light from a subject; an aperture unit including a plurality of aperture elements provided to associate with the plurality of pixel blocks, each of the aperture elements having an aperture portion and a shield portion, light from the image formation lens being filtered by each aperture element; a microlens array including a plurality of microlenses provided to associate with the plurality of aperture elements, each of the microlenses forming an image in the imaging area by using light filtered by an associated aperture element; and a signal processing circuit configured to process a signal of an image taken in the imaging area and estimates a distance to the subject.
A sound signal processing apparatus includes a frequency analysis unit which executes frequency analysis of an input sound signal; a low-frequency envelope calculating unit which calculates low-frequency envelope information as envelope information of a low-frequency band based on a result of the frequency analysis; a high-frequency envelope information estimating unit which applies learned data generated in advance based on a sound signal for learning and generates estimated high-frequency envelope information corresponding to an input signal from the low-frequency envelope information corresponding to the input sound signal; and a frequency synthesizing unit which synthesizes a high-frequency band signal corresponding to the estimated high-frequency envelope information generated by the high-frequency envelope information estimating unit with the input sound signal and generates an output sound signal in which a frequency band is expanded.
Example methods, apparatuses, or articles of manufacture are disclosed that may be implemented using one or more computing devices or platforms to facilitate or otherwise support one or more processes or operations associated with a space-time-node engine signal processing.
A space-time signal processing system with advantageously reduced complexity. The system may take advantage of multiple transmitter antenna elements and/or multiple receiver antenna elements, or multiple polarizations of a single transmitter antenna element and/or single receiver antenna element. The system is not restricted to wireless contexts and may exploit any channel having multiple inputs or multiple outputs and certain other characteristics. Multi-path effects in a transmission medium cause a multiplicative increase in capacity.
A spin isolation apparatus comprising a particle source for emitting particles having spins, a receiving section for receiving the particles emitted by the particle source, a magnet for separating the particles into first particles having positive spins and second particles having negative spins, and a trajectory restricting section for isolating the first and the second particles received by the receiving section through restricting trajectories of the first particles and/or the second particles is provided. By applying this apparatus, particles having spins whose every sign is either one of the two signs can be mass-produced.
A prediction performance between individual channels of a stereo signal is improved to improve a sound quality of a decoded signal. A first low pass filter LPF interrupts a high-range component of a first channel signal S1, and outputs a first low-range component S1'. A second low pass filter LPF interrupts a high-range component of a second channel signal S2, and outputs a second low-range component S2'. A predictor predicts the S2' from the S1', and outputs a prediction parameter composed of a delay time difference t and an amplitude ratio g. first channel encoder encodes the S1. A prediction parameter encoder encodes the prediction parameter. The encoded parameters of the encoded parameter of the S1 and the prediction parameter are then outputted.
A signal processing circuit whose power consumption can be suppressed is provided. In a period during which a power supply voltage is not supplied to a storage element, data stored in a first storage circuit corresponding to a nonvolatile memory can be held by a first capacitor provided in a second storage circuit. With the use of a transistor in which a channel is formed in an oxide semiconductor layer, a signal held in the first capacitor is held for a long time. The storage element can accordingly hold the stored content (data) also in a period during which the supply of the power supply voltage is stopped. A signal held by the first capacitor can be converted into the one corresponding to the state (the on state or off state) of the second transistor and read from the second storage circuit. Consequently, an original signal can be accurately read.
A method for suppressing interference signals within a waveform includes performing an analog Fourier transform on the waveform with a hardware circuit to obtain an amplitude spectrum having a plurality of frequency bins and computing a noise floor spectrum from the amplitude spectrum to obtain a noise floor spectrum; creating a threshold spectrum based on the noise floor spectrum. The method also includes replacing the amplitude of each bin of the amplitude spectrum that exceeds a corresponding bin of the threshold spectrum with an alternative value to form a corrected spectrum and performing an analog inverse Fourier transform on the corrected spectrum thereby suppressing interference signals within the waveform.
A method and apparatus for creating and posting media is provided. For example, the invention allows a user to quickly create, signal process, encode, and transfer media files to a server for storage, posting, distribution, and retrieval. Thus, media such as audio, video, display, photo, spreadsheet, Web Clips, and HTML pages can be combined into a media file for uploading to a server and accessed from listings posted at web sites. In accordance with embodiments, a user downloads and installs a plug-in at the user's client computer. The user then registers and logs onto the server to perform various tasks. For example, the user can create a combined audio and photo media file at the client computer, in accordance with server based control parameters received from the system server. The plug-in then allows the user to perform digital signal processing and encoding of the media file at the client computer. After the file is encoded, it may be uploaded to a server for storage, posting, distribution, and retrieval. A file management system provides copies and listings of the file to other servers and web sites as permitted. Thus, other user having access to the database or web site lists via other client computers may select the file for retrieval. In accordance with another aspect of the invention, an information management system provides file and file list rankings based upon selection or click through of files and file listings.
A system and method for enhancement and management of streaming audio is disclosed. In one embodiment, the system provides a client-side decoder that is compatible with numerous audio formats, so that a user can enjoy relatively high-quality audio from various sources, even from sources that do not provide multi-channel or high-quality audio data. The system and method also include a management system for managing and controlling the use of licensed signal processing software to further enhance an audio stream. In one embodiment, the management system is used to manage a signal processing module that provides psychoacoustic audio processing to create a wider soundstage, an acoustic correction process to increase the perceived height and clarity of the audio image, and bass enhancement processing to create the perception of low bass from the small speakers or headphones typically used with multi-media systems and portable audio players.
The invention relates to a transmitting system, comprising an SNS client that receives SNS messages from at least one SNS server, and a transmitter which transmits a broadcast signal, including the SNS messages and mobile service data, for a mobile broadcast. The transmitter includes: an RS frame encoder, which performs RS encoding and CRC encoding on the mobile service data for the mobile broadcast so as to build RS frames, and divides each RS frame into a plurality of portions; a group-forming unit, which forms data groups that contain each of the plurality of portions, and which adds known data sequences and signaling data to each data group; an inter-leaver for interleaving data of the data groups; and a trellis encoding unit for trellis-encoding the interleaved data.
A laser Doppler velocimeter uses self-mixing amplification of backreflections from scatterers below the surface of a flow. A time domain signal is divided into segments that are roughly equal to a transit time of particles through a focus of a laser beam. The segments are connected to a frequency domain through the use of an FFT algorithm to produce frequency domain data segments. Signal-to-noise ratio is enhanced through signal processing techniques using the segments to produce a final enhanced signal spectrum.
A multiband signal generator generates multiband signals from 21 lines of input data by using a subset of N lines with each line delayed from 1 line to N lines respectively. M line buffers delay the multiband signals such that each line is delayed from 1 line to M lines respectively. An analyzer detects correlations between video data by selecting regions with a maximum size M.times.M in the multiband signals, and analyzes characteristics of the video data. A multiband signal generator generates multiband signals with cutoff frequencies based on an analysis result from the analyzer, by using the data from 1-line through N-line delayed multiband signal. An amplitude adjuster and synthesizer unit adjusts and synthesizes amplitudes of the multiband signals.
A video signal processing device which includes, a stereoscopic image input unit which alternately inputs a video frame for a left eye and a video frame for a right eye, in a time sharing manner; a plane memory which maintains graphic data which overlaps with the video frame; a read phase addition unit which gives a phase difference when reading the graphic data from the plane memory at the time of displaying the video frame for the left eye and the video frame for the right eye; and a video overlapping unit which overlaps each graphic data of which a read phase is provided with a difference, with each of the video frame for the left eye and the video frame for the right eye.
A total of n signal processing circuits respectively constituted by independent circuit blocks process signals at the Data Link and Physical Layers. The signal processing circuits are associated with respective n groups of M/n subcarriers each, to process signals at the Data Link and Physical Layers. For example, the signal processing circuit independently processes signals of the subcarrier group at the Data Link and Physical Layers, the signal processing circuit independently processes signals of the subcarrier group at the Data Link and Physical Layers, and so on. The signal processing circuit independently processes signals of the subcarrier group at the Data Link and Physical Layers.
A wireless communication receiver includes a first signal processing circuit, a second signal processing circuit, and a detecting circuit. The first signal processing circuit generates a first processed signal by processing a received radio frequency (RF) signal. The second signal processing circuit is coupled to the first signal processing circuit. The detecting circuit monitors a specific signal of the first signal processing circuit and generates at least a control signal to the second signal processing circuit in response to a signal level of the monitored specific signal. The control signal controls the second signal processing circuit to switch from a first operation mode to a second operation mode.
A wireless LAN communication device includes an amplifying circuit, an interference detection circuit, a false alarm counting circuit, and a control circuit. The amplifying circuit is configured to operably provide a gain to wireless signals. The interference detection circuit is configured to operably detect adjacent channel interference signals to generate a detection result. The false alarm counting circuit is configured to operably calculate a number of false alarms incurred by the adjacent channel interference signals. The control circuit is configured to operably configure the gain of the amplifying circuit according to the detection result and the number of false alarms.
An X-ray detection signal processing apparatus of the present invention is such that after a signal from a preamplifier has been converted into a digital signal at a high speed by means of a high speed analog-to-digital converter (1), a process for removing influences brought about by a component that has been decayed by a differential time constant in the preamplifier is performed on a digital basis in a digital signal processing block (2). An event detecting unit (3) within the digital signal processing block (2), smoothen the signal from the high speed analog-to-digital converter (1) for a predetermined shaping time with the use of a filter function for high speed shaping, detects as an event information the timing at which the smoothened signal exceeds a predetermined threshold and attains the maximum value, and add such event information to the signal from the high speed analog-to-digital converter (1).
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