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Signal Processing patents



      
           
This page is updated frequently with new Signal Processing-related patent applications. Subscribe to the Signal Processing RSS feed to automatically get the update: related Signal RSS feeds. RSS updates for this page: Signal Processing RSS RSS


Music signal processing apparatus and method, and program

Music signal processing apparatus and method, and program

Sensor system for independently evaluating the integrity of the data of the sensor system

Sensor system for independently evaluating the integrity of the data of the sensor system

Sensor system for independently evaluating the integrity of the data of the sensor system

Ultrasound diagnosis apparatus and medical picture projection apparatus

Date/App# patent app List of recent Signal Processing-related patents
11/13/14
20140337890
 Display apparatus capable of providing a social network service (sns) message and display method thereof patent thumbnailDisplay apparatus capable of providing a social network service (sns) message and display method thereof
A display method and apparatus are disclosed. The display method includes selecting a broadcasting channel to display a broadcast program, accessing an outside server to receive a sns (social network service) message corresponding to at least one of the broadcasting channel and the broadcast program among sns messages registered with the outside server, and displaying the received sns message on a picture displaying the broadcast program.
11/13/14
20140337019
 Music signal processing apparatus and method, and program patent thumbnailMusic signal processing apparatus and method, and program
A music signal processing apparatus includes a frequency spectrum transform unit, a filter, a frequency feature amount generation unit, and a melody feature amount sequence acquisition unit. The frequency spectrum transform unit is configured to transform a music signal into a frequency spectrum, the music signal being a signal of a musical piece containing a part with a melody.
11/13/14
20140336983
 Sensor system for independently evaluating the integrity of the data of the sensor system patent thumbnailSensor system for independently evaluating the integrity of the data of the sensor system
A sensor system, having sensor elements for sensing at least to some extent different primary measured variables or use different measurement principles. A signal processing device evaluates the sensor signals from the sensor elements at least to some extent collectively and rates the information quality of the sensor signals.
11/13/14
20140336511
 Ultrasound diagnosis apparatus and medical picture projection apparatus patent thumbnailUltrasound diagnosis apparatus and medical picture projection apparatus
Ultrasound diagnosis apparatus and a medical picture projection apparatus are provided, simply operating the apparatus in a less loaded posture without losing the variety of operation functions, comprising: an ultrasound probe; signal processor; a display controller; a projector; storage; a determining unit; and a controller. The ultrasound probe scans a subject using ultrasound waves.
11/13/14
20140335902
 Driver identification and data collection systems for use with mobile communication devices in vehicles patent thumbnailDriver identification and data collection systems for use with mobile communication devices in vehicles
Systems, methods, and devices for determining the location of one or more mobile devices within a vehicle comprising: (a) a controller located within the vehicle and configured to transmit at least two audio signals, a first audio signal directed generally into a driver space within the vehicle and a second audio signal directed generally into a passenger space within the vehicle, and (b) software code stored in memory of the mobile device and having instructions executable by a processor that performs the steps of: (i) detecting the at least two audio signals, (ii) sampling the at least two audio signals for a predetermined period of time; (iii) performing digital signal processing on the sampled at least two audio signals; and (iv) based on the results of the digital signal processing, determining whether the mobile device was located within the driver space of the vehicle during the predetermined period of time.. .
11/13/14
20140335810
 Receiver for wireless communication system patent thumbnailReceiver for wireless communication system
One exemplary receiver for a wireless communication system includes signal processing components arranged to generate a receiver output according to a radio frequency (rf) signal. The signal processing components include amplifiers having a class-ab biased amplifier included therein.
11/13/14
20140335793
 System and method for reducing signal interference between bluetooth and wlan communications patent thumbnailSystem and method for reducing signal interference between bluetooth and wlan communications
Methods and systems are disclosed for reducing signal interference between bluetooth (bt) and wlan (e.g. Wifi) communications in an information handling system.
11/13/14
20140334663
 Encoding in two chrominance directions patent thumbnailEncoding in two chrominance directions
The present disclosure relates generally signal processing. One claim recites an apparatus comprising: memory for storing a color video signal comprising first data and second data; and a processor.
11/13/14
20140334637
 Signal processing for a headrest-based audio system patent thumbnailSignal processing for a headrest-based audio system
An automobile audio system having at least two near-field speakers located close to an intended position of a listener's head is configured by determining a first binaural filter that causes sound produced by each of the near-field speakers to have characteristics at the intended position of the listener's head of sound produced by a sound source located at a first designated position other than the actual locations of the near-field speakers, determining an up-mixing rule to generate at least three component channel signals from an input audio signal having at least two channels, and configuring the audio system to, determine a first binaural signal corresponding to a combination of the component channel signals originating at the first designated position, and filter the first binaural signal using the first binaural filter and to output the filtered signals using the near-field speakers.. .
11/13/14
20140334631
 Noise reduction patent thumbnailNoise reduction
A method of reducing noise in an acoustic system, the method comprising at a first user terminal: receiving an audio signal from at least one further user terminal over a network; executing a communication client on a processing unit, the client configured so as when executed to: supply the audio signal to an audio signal processing module of the first user terminal, wherein the processing module processes the audio signal, whereby a level of gain is applied to the audio signal, and outputs a processed audio signal to a speaker; estimate a noise level of the audio signal and the processed audio signal and estimate the gain applied by the processing module taking into account both the noise level estimates; selectively apply a system gain reduction step to at least one of the audio signal and an audio signal received via a microphone, based on at least the estimated gain.. .
11/13/14
20140334575
Active signal processing personal health signal receivers
The invention provides a receiver associated with a body, e.g., located inside or within close proximity to a body, configured to receive and decode a signal from an in vivo transmitter which located inside the body. Signal receivers of the invention provide for accurate signal decoding of a low-level signal, even in the presence of significant noise, using a small-scale chip, e.g., where the chip consumes very low power.
11/13/14
20140334560
Receiving device, signal processing device, and signal processing method
A receiving device according to the present invention includes: a receiver for receiving an ofdm symbol that is modulated by phase shift keying; an fft processor for applying an fft process to the received ofdm symbol to obtain a subcarrier signal; a demapping unit for demapping the subcarrier signal to generate a bit string; a norm calculator for calculating the norm of the subcarrier; a weighting factor generator for generating a weighting factor by taking the statistics of the calculated norm; and a weighting unit for obtaining a soft decision value by weighting the bit string after demapping, based on the particular weighting factor. Thus, the receiving device can obtain a soft decision value to achieve good decoding performance with a small number of known signals and processes..
11/13/14
20140334417
Radio station and method of processing user data with radio station
A radio station (1) includes a first part (1a) and at least one second part (1b). The second part (1b) can be arranged so as to be physically separated from the first part (1a) and is connected to the first part (1a) via a transmission line (40) so as to be able to communicate with the first part (1a).
11/13/14
20140334260
Neural network signal processing of microseismic events
Systems, apparatuses and methods for neural network signal processing of microseismic events. A series of sensors are disposable in at least one first well positioned about a second well disposed in a subterranean formation.
11/13/14
20140333559
Master/slave control of touch sensing
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.
11/13/14
20140333477
Method, apparatus and system for reducing power consumption in gnss receivers
Inventive aspects include a method, apparatus, and system for reducing power consumption in gnss receivers. Such may include receiving timing and accuracy parameters, processing pre-positioning information in preparation for signal acquisition or signal track, determining whether a plurality of satellites are in-view, applying an on signal to one or more components of an analog signal processing section and to one or more components of a digital signal processing section, and within a dynamic time window, acquiring signals of the plurality of in-view satellites and simultaneously applying, in real-time, signal sensing logic to the acquired signals, until determining that a position fix of the electronic receiver is obtained.
11/13/14
20140333463
Split-path data acquisition signal chain
The present disclosure provides for split-path data acquisition chains and associated signal processing methods. An exemplary integrated circuit for providing a split-path data acquisition signal chain includes an input terminal for receiving an analog signal; an output terminal for outputting a digital signal; and at least two frequency circuit paths coupled with the input terminal and the output terminal, wherein the at least two frequency circuit paths are configured to process different frequency components of the analog signal and recombine the processed, different frequency components, thereby providing the digital signal..
11/13/14
20140332593
Laser scanning code symbol reading system
A laser scanning symbol reading system includes an analog scan data signal processor for producing digital data signals, wherein during each scanning cycle, a light collection and photo-detection module generates an analog scan data signal corresponding to a laser scanned symbol, a multi-channel parallel scan data signal processor/digitizer processes the analog scan data signal along multiple cascaded multi-stage signal processing channels, to generate digital data signals corresponding thereto, while a synchronized digital gain control module automatically processes the digital data signals in response to start of scan (sos) signals generated by a sos detector. Each signal processing channel supports different stages of amplification and filtering using a different set of band-pass filtering and gain parameters in each channel, to produce multiple digital first derivative data signals, and/or multiple digital scan data intensity data signals, having different signal amplitudes and dynamic range characteristics for use in decode processing..
11/06/14
20140330128
Signal processing apparatus and method
An a array transducer is a one-dimensional array transducer that is a conventional array transducer. A b array transducer and a c array transducer are connected to both ends of the short side of the a array transducer (the right and left ends in the drawing), so that the array direction of the respective transducers in the a array transducer is perpendicular to the array direction of the respective transducers in the b array transducer and the c array transducer.
11/06/14
20140329481
Band translation with protection of in-home networks
Methods and systems are provided for band translation with protection. A signal processing circuitry (chip) may be configured to handle a plurality of signals, comprising at least a first signal corresponding to internal communication within an in-premises network and at least a second signal originating from a source external to the in-premises network; and to process on-chip the plurality of input signals, to generate one or more output signals.
11/06/14
20140328592
Signal processing method, optical receiver and optical network system
A signal processing method, an optical receiver and optical network system is provided. The method includes: receiving a first optical signal sent by an optical network unit, generating a second optical signal and modulating a phase of the second optical signal, obtaining at least one path of electrical signals after the first optical signal and the second optical signal separately undergo polarization splitting, frequency mixing, and optical-electrical conversion, outputting a third electrical signal after performing operation processing on the at least one path of electrical signals, and restoring a data signal according to the third electrical signal and performing sending.
11/06/14
20140328585
Equalization signal processor, optical receiver including the same, and method for equalization signal processing
It becomes difficult to perform the optimum equalization signal processing in coherent receiving systems if a channel response in an optical fiber transmission line includes a factor without temporal centrosymmetry, therefore, an equalization signal processor according to an exemplary aspect of the invention includes an equalization filter means configured to receive digital signals by coherent receiving systems; a coefficient control means configured to control coefficients defining characteristics of the equalization filter means; a significant coefficient holding means configured to hold significant coefficients of significant values among initial values of the coefficients; a significant coefficient positioning means configured to determine a significant coefficient position, a position of the significant coefficients in the initial values, so that equalization characteristics of the equalization filter means may be optimized; and a significant coefficient setting means configured to allocate the significant coefficients to the significant coefficient position.. .
11/06/14
20140328546
Signal processing method and apparatus for implementing said method
A method (1) of processing signals by means of rescaling, comprising the steps of: —downscaling (10) an initial signal (11), in accordance with a predetermined downscaling factor (df) to obtain a downscaled signal (12), —upscaling (20), the downscaled signal (12) to obtain an upscaled signal (13) having the same dimensions as said initial signal (11), —comparing (30) the initial signal (11) and the upscaled signal (13) to calculate a comparison parameter, —if said comparison parameter is within a previously defined range, decreasing (50) the downscaling factor (df) and repeating the steps of downscaling (10), upscaling (20) and comparison (30), —if said comparison parameter is outside the previously defined range, encoding (40) an encoded signal (14) as a function of the downscaled signal (12).. .
11/06/14
20140328538
Image signal processing device and method and image processing system using the same
An image signal processing device is disclosed, including a sensitivity improvement unit, a bayer rgb conversion unit, and a color correction unit. The sensitivity improvement unit interpolates input white, red, green, and blue (wrgb) data, mixes a luminance signal of first color space data for the interpolated wrgb data with a first type pixel signal of the interpolated wrgb data to convert the first color space data into second color space data, and converts the second color space data into converted rgb data.
11/06/14
20140328487
Sound signal processing apparatus, sound signal processing method, and program
A sound signal processing apparatus includes an observed signal analysis unit that receives as an observed signal a sound signal for channels obtained by a sound signal input unit formed of microphones and estimates a sound direction and a sound segment of a target sound which is sound to be extracted and a sound source extraction unit that receives the sound direction and sound segment of the target sound estimated by the observed signal analysis unit and extracts the sound signal for the target sound. The observed signal analysis unit includes a short time fourier transform unit that generates an observed signal in time-frequency domain by applying short time fourier transform to the sound signal for the channels received and a direction/segment estimation unit that receives the observed signal generated by the short time fourier transform unit and detects the sound direction and sound segment of the target sound..
11/06/14
20140328485
Systems and methods for stereoisation and enhancement of live event audio
Systems and methods to deliver live sound with enhanced quality conveyed by a mixing desk to a mobile computing device user contemporaneously with external live sounds. The mobile computing device is operable to receive enhanced audio signals produced by a remote audio signal processing device through a communication work.
11/06/14
20140328437
Systems and methods for selecting digital content channels using low noise block converters including digital channelizer switches
Systems and methods in accordance with embodiments of the invention include converting satellite signals to an intermediate frequency signal for content decoding, and selecting modulated digital data within the satellite signals for content decoding using digital signal processing. One embodiment includes a system configured to select at least one content channel from an input signal including a plurality of content channels modulated onto a carrier, the system including: a digital channelizer switch including: a high speed analog to digital converter configured to digitize the intermediate frequency signal; a digital channelizer configured to digitally tune a content channel from the digitized intermediate frequency signal; and a high speed digital to analog converter configured to generate an analog output signal using the content channel digitally tuned from the digitized intermediate frequency signal by the digital channelizer..
11/06/14
20140328431
Crest factor reduction for frequency hopping modulation schemes and for hardware acceleration of wideband and dynamic frequency systems in a wireless network
A transmitter for use in a wireless communication network of frequency agile signals is provided. The transmitter includes a frequency hop (fh) machine.
11/06/14
20140328419
Method for setting a filter coefficient for a communication system
A method for setting a filter coefficient for a communication system, which adjusts a frequency bandwidth by setting a filter coefficient of a wireless communication system over a communication network, is provided. In the method, a wireless communication system that includes a controller having a filter coefficient database and a web server, and a digital signal processing device requests a filter coefficient and attribute information related to a set target frequency bandwidth from a management terminal.
11/06/14
20140328178
Baseband signal processing cluster
Embodiments relate to a baseband signal processing cluster (100) of a wireless communication network, the baseband signal processing cluster (100) comprising a plurality of baseband signal processing units (110), wherein at least one of the baseband signal processing units (110) is coupled to at least one remote radio head of the wireless communication network and comprises a unit-specific processing resource management entity (120) operable to manage a processing resource allocation within its associated baseband signal processing unit (110), an intra-cluster processing resource management entity (130) coupled to at least one of the unit-specific processing resource management entities (120) and operable to manage a processing resource allocation among the plurality of baseband signal processing units (100), and an inter-cluster processing resource management entity (140) coupled to the intra-cluster processing resource management entity (130) and operable to exchange information with at least one remote inter-cluster processing resource management entity of a remote baseband signal processing cluster of the wireless communication network to effect a remote processing resource allocation.. .
11/06/14
20140328111
Signal processing circuit and method for driving the same
An object is to provide a signal processing circuit which can be manufactured without a complex manufacturing process and suppress power consumption. A storage element includes two logic elements (referred to as a first phase-inversion element and a second phase-inversion element) which invert a phase of an input signal and output the signal, a first selection transistor, and a second selection transistor.
11/06/14
20140327777
Automated, remotely-verified alarm system with intrusion and video surveillance and digital video recording
An automated self-monitored alarm verification solution including at least a premises portion, a server portion, and an end user device portion. Alarm verification includes capturing by an image capture device at least one image in response to a detection event, and transmitting a first data signal including the image to a local signal processing device.
11/06/14
20140327633
Touch-sensitive electronic device and touch module of the same
The disclosure provides a touch-sensitive electronic device and a touch module thereof. The touch-sensitive electronic device includes a touch module and a power supply module.
11/06/14
20140327587
Multi band antenna device and wireless communication device including multi band antenna
A multi band antenna device which can simultaneously design a first frequency band antenna and a second frequency band antenna within one wireless communication device is provided. The multi band antenna device includes a first band antenna unit that communicates a first frequency band signal, a first band driving circuit unit that is connected to the first band antenna unit and that is configured to perform signal processing of a corresponding first frequency band signal communicated in the first band antenna unit, a second band driving circuit unit that is connected to the first band antenna unit, and that is configured to perform signal processing of a second frequency band signal which has a frequency that is lower than a frequency of the first frequency band signal, and a first inductor unit that is connected between one end of the first band antenna unit and the second band driving circuit unit, and that is configured to serve as an inductor..
11/06/14
20140327100
Light detection device
A semiconductor light detection element has a plurality of channels, each of which consists of a photodiode array including a plurality of avalanche photodiodes operating in geiger mode, quenching resistors connected in series to the respective avalanche photodiodes, and signal lines to which the quenching resistors are connected in parallel. A mounting substrate is configured so that a plurality of electrodes corresponding to the respective channels are arranged on a third principal surface side and so that a signal processing unit for processing output signals from the respective channels is arranged on a fourth principal surface side.
11/06/14
20140326995
Memory device and signal processing circuit
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.
11/06/14
20140326902
Phoniton systems, devices, and methods
An artificial composite object combines a quantum of sound with a matter excitation. A phonon in a confinement structure containing the matter excites it from an initial state to an excited state corresponding to a frequency of the phonon.
10/30/14
20140325509
System and method for rf digitization and collection
An rf digitization and collection system (rfdcs) and methods for implementing the rf digitization and collection system to manage an application storage and retrieval space (app space), wherein the app space includes apps that may perform various offline and/or real-time transforms of rf signals received, stored, or played back on the rfdcs. Also, in the various embodiments, the rfdcs may govern the system resources available to these apps while ensuring that the rfdcs's core system functions are not impacted by the execution of one or more of these apps in the app space.
10/30/14
20140325506
System and method for rf digitization and collection
An rf digitization and collection system (rfdcs) and methods for implementing the rf digitization and collection system to manage an application storage and retrieval space (app space), wherein the app space includes apps that may perform various offline and/or real-time transforms of rf signals received, stored, or played back on the rfdcs. Also, in the various embodiments, the rfdcs may govern the system resources available to these apps while ensuring that the rfdcs's core system functions are not impacted by the execution of one or more of these apps in the app space.
10/30/14
20140325179
System and method for writing pilot data interspersed with user data for estimating disturbance experienced by user data
A system including a write module to write pilot data at predetermined locations in a page of memory cells that are interspersed with user data in the page. The pilot data has a first predetermined pattern and provides an indication of a disturbance experienced by the user data due to noise and a read, write, or erase operation performed on the page.
10/30/14
20140325124
Memory system and method for operating a memory system
A memory system for storing data in a plurality n of memory chips. The memory system includes a number k of sets of memory chips, wherein each set of the k sets includes a number m of the memory chips, with n=k·m; and one signal processing unit having a number l of signal processing engines for signal processing data of the n memory chips and having a data link interface for interfacing each of the k sets..
10/30/14
20140324420
Noise suppression
A method and computing system for suppressing noise in an audio signal, comprising: receiving the audio signal at signal processing means; determining that another signal is input to the signal processing means, the input signal resulting from an activity which generates noise in the audio signal; and selectively suppressing noise in the audio signal in dependence on the determination that the input signal is input to the signal processing means to thereby suppress the generated noise in the audio signal.. .
10/30/14
20140324230
Hvac control system for household central air conditioning
An hvac control system for a household central air conditioning, including an hvac system controller, a centrifugal blower motor, a compressor motor, and an axial fan motor. The hvac system controller includes an hvac microprocessor, a sensor, an interface unit for motor control, a power supply part, and a signal processing circuit.
10/30/14
20140323822
System and method for generating an adjusted fluid responsiveness metric
The present invention relates to physiological signal processing, and in particular to methods and systems for processing physiological signals to predict a fluid responsiveness of a patient. A medical monitor for monitoring a patient includes an input receiving a photoplethysmograph (ppg) signal representing light absorption by a patient's tissue.
10/30/14
20140323183
Hinged miniature wireless headset
A hinged u-shaped battery-powered miniature wireless headset, is worn as an earring or a pair of earrings. The earset communicates with a phone or other host over a bidirectional wireless communication link allowing hands-free operation.
10/30/14
20140323075
Method and device for radio reception using an antenna tuning apparatus and a plurality of antennas
A receiver for radio communication comprises: four antennas; an antenna tuning apparatus for simultaneously tuning the four antennas, the antenna tuning apparatus comprising adjustable impedance devices, each of the adjustable impedance devices having a reactance at a frequency, the reactance of any one of the adjustable impedance devices being adjustable by electrical means; four single-input and single-output low-noise amplifiers; four analog processing and conversion circuits; a multiple-input signal processing device delivering a signal to a destination, the multiple-input signal processing device delivering a tuning instruction; a tuning control unit, the tuning control unit receiving the tuning instruction from the multiple-input signal processing device, the tuning control unit delivering tuning control signals to the antenna tuning apparatus as a function of the tuning instruction.. .
10/30/14
20140321763
Communication system with compressive sensing
Systems and methods for communication systems with compressive sensing are disclosed. In one embodiment, a method of signal processing includes receiving a data packet at a processor.
10/30/14
20140321706
Automated, remotely-verified alarm system with intrusion and video surveillance and digitial video recording
An automated self-monitored alarm verification solution including at least a premises portion, a server portion, and an end user device portion. Alarm verification includes capturing by an image capture device at least one image in response to a detection event, and transmitting a first data signal including the image to a local signal processing device.
10/30/14
20140321688
Earhole-wearable sound collection device, signal processing device, and sound collection method
In the earhole-wearable sound collection device, a microphone that collects emitted speech voice is provided in a space that is substantially sealed off from outside and connects to an ear canal of the wearer (the speaker). With the microphone being located in the space sealed off from outside, emitted speech voice that propagates through the ear canal of the wearer is collected.
10/30/14
20140321668
Signal processing device
A signal processing device includes an excessive input estimating unit 102 that estimates excessive input of a target signal, a controller 105 that calculates frequency characteristics which will lessen the excessive input of the target signal from the excessive input information estimated by the excessive input estimating unit 102, and a frequency characteristic modification unit 103 that modifies the frequency characteristics of the target signal in accordance with the frequency characteristics the controller 105 calculates.. .
10/30/14
20140321580
Signal processing method
A demapping scheme, having a low computational cost, suitable for any transmission in which only exhaustive demapping can guarantee good performance. The scheme, proposed in this document, can be used in any transmission based on no differential modulation.
10/30/14
20140321578
Efficient signal processing for receive and transmit dbf arrays
In a phased-array communications system with a distributed processing architecture, channelized beamforming is used to minimize sampling and computational requirements, as well as reduce the data rates required for the communication of data and control information between system components. A central processor within the phased array system performs parallelized synthesis of channelized beams to form beams composite beams in sub-bands that overlap multiple channels.
10/30/14
20140321516
Transceiver iq calibration system and associated method
Local oscillator (lo) in-phase/quadrature (iq) imbalance correction data are generated for one or both of the transmitter and receiver of a radio-frequency (rf) communication device. An rf transmitter output signal is generated by the transmitter from a known test signal and transmitted to the receiver, where a baseband receiver signal is produced.
10/30/14
20140321478
Full channel-swap crossbar
A programmable channel-swap crossbar switch for swapping signal flow from one channel to another within an ethernet physical layer device (phy) is presented. The crossbar switch includes two or more programmed multiplexers, each multiplexer configured to receive two or more input signals and to select which one of the input signals to pass to a programmed corresponding channel, such that a first, input signal associated with a first channel can be swapped to a second channel as operating conditions necessitate.
10/30/14
20140321457
Packet handler for high speed data networks
An improved packet handler for voip cable modems and other high-speed digital devices includes a direct communication link via hardware among internal processing components. Incoming and outgoing digital information packets are filtered into mac packets, voice pdu packets, and non-voice pdu packets, such that priority can be given to relaying voice packets and minimizing potential voice delay within the cable network.
10/30/14
20140321439
Apparatus and methods for transmission and reception of data in multi-antenna systems
Methods and apparatus adapted to address asymmetric conditions in a multi-antenna system. In one embodiment, the multi-antenna system comprises a wireless (e.g., 3g cellular) multiple-input, multiple-output (mimo) system, and the methods and apparatus efficiently utilize transmitter and receiver resources based at least in part on a detected asymmetric condition.
10/30/14
20140321252
Optical information device, tilt detection method, computer, player, and recorder
A photodetector outputs a first signal and a second signal corresponding to light amounts of the received first light flux and the received second light flux, first and second low band extraction circuits extract low band components of the first signal and the second signal, first and second high band extraction circuits extract high band components of the first signal and the second signal, a differential circuit calculates a difference signal between a high band component difference signal as a difference between the high band component of the first signal and the high band component of the second signal and a low band component difference signal as a difference between the low band component of the first signal and the low band component of the second signal, and a control signal processing section generates a tilt control signal based on the calculated difference signal.. .
10/30/14
20140320605
Compound structured light projection system for 3-d surface profiling
A method and apparatus is provided for high speed, non-contact method of measuring the 3-d coordinates of a dense grid of points on a surface, including high accuracy interpolation between grid points. A plurality of pulsed laser sub-projectors sequentially illuminates a plurality of discrete gray code bar pattern transparencies carried on a spinning circular code disk to project high frame rate structured light.
10/30/14
20140320310
Time-corrected sensor system
A sensor system has a plurality of sensor elements and a signal processing device in communication with the plurality of sensor elements. The signal processing device is configured to evaluate more than one of at a substantially similar time and assign time information which includes information on the time of the respective measurement to the measurement data of physical variables, wherein the signal processing device takes into consideration time information at least during the generation of a fusion data set in a fusion filter..
10/30/14
20140320223
Semiconductor apparatus, oscillation circuit, and signal processing system
A semiconductor apparatus includes: first and second external terminals that are connected to respective both ends of an piezoelectric vibrator, in which the piezoelectric vibrator is externally disposed; an inverting amplifier that is disposed between the first and second external terminals; a feedback resistance that feeds back an output of the inverting amplifier to an input of the inverting amplifier; a first capacitative element that is disposed between the first external terminal and a reference voltage terminal; a first resistive element that is disposed in series with the first capacitative element; a second capacitative element that is disposed between the second external terminal and the reference voltage terminal; and a second resistive element that is disposed in series with the second capacitative element.. .
10/30/14
20140320213
Radio frequency power amplifier circuit and method
An amplifier circuit is disclosed for providing a radio frequency output signal having a variable signal envelope, comprising a main amplifier device and an auxiliary amplifier and a combiner network for combining an output signal from said first amplifier device and a second output signal from said second amplifier device to provide a combined output signal of variable signal envelope to a load, and a signal processing circuit comprising an input and a non-linear processing section to provide at least said second radio frequency output signal with a signal envelope that has a non-linear dependency from an amplitude characteristic of the input signal such that the degree of non-linearity of the non-linear dependency varies dependent on the amount of change per time unit of the amplitude characteristic of the input signal. Further, a method of power amplifying a radio frequency signal having a variable signal envelope is disclosed..
10/30/14
20140320191
Differential analog signal processing stage with reduced even order harmonic distortion
The even order harmonic distortion in a differential circuit is reduced or eliminated by treating the amplitude and phase mismatch sources that cause the distortion as impedance mismatches, and utilizing switched resistor circuitry that adjusts the load resistance to reduce the effects of the amplitude mismatch sources, and switched capacitor circuitry that adds shunt capacitance to reduce the effects of the phase mismatch sources.. .
10/30/14
20140320013
Multiple radio frequency power supply control of frequency and phase
A system has a first rf generator and a second rf generator. The first rf generator controls the frequency of the second rf generator.
10/30/14
20140318253
Object information acquiring apparatus and control method thereof
Adopted is an object information acquiring apparatus that includes: a probe including multiple conversion elements that transmit acoustic waves to an object, and convert the reflected waves into time-series received signals; and a processor that performs frequency domain interferometry, through application of adaptive signal processing, by using the multiple received signals output from the multiple conversion elements and a reference signal, and obtains acoustic properties of multiple positions. The probe is configured such that, when a direction in which the multiple conversion elements are arranged is a first direction and a second direction, end portions in the second direction have a lower transmission sound pressure of the acoustic waves than a midportion in the second direction..


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