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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


Scalable test platform

Semiconductor device

Date/App# patent app List of recent Signal Processing-related patents
07/24/14
20140208205
 System and method for creating and posting media lists for purposes of subsequent playback patent thumbnailSystem and method for creating and posting media lists for purposes of subsequent playback
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.
07/24/14
20140208164
 Scalable test platform patent thumbnailScalable test platform
A scalable test platform includes a pcie-based event fabric. One or more instrument subsystems are coupled to the pcie-based event fabric and configured to interface one or more devices under test and generate captured test data.
07/24/14
20140208142
 Semiconductor device patent thumbnailSemiconductor device
Supply of power to a plurality of circuits is controlled efficiently depending on usage conditions and the like of the circuits. An address monitoring circuit monitors whether a cache memory and an input/output interface are in an access state or not, and performs power gating in accordance with the state of the cache memory and the input/output interface.
07/24/14
20140207982
 Signal processing system and method for processing signals in a bus node patent thumbnailSignal processing system and method for processing signals in a bus node
A signal processing system having a bus node, which is designed for signal conversion between signals of an internal and an external bus system and in each case includes at least one interface to be coupled to the external bus system and to the internal bus system, and having at least one signal conditioning module, which is designed for physical conditioning and/or analog/digital conversion for signals from an external component and includes an interface for an internal bus system and at least one connection for the external component and is connected to the bus note via the internal bus system. The bus node is designed for internal raw data processing of the signals provided by the signal conditioning module and to output at least one output signal dependent on the processed signals to the internal and/or to the external bus system..
07/24/14
20140207418
 Real-time resampling of optical coherence tomography signals using a field programmable gate array patent thumbnailReal-time resampling of optical coherence tomography signals using a field programmable gate array
A signal processing system implemented on a field programmable gate array (fpga) operates according to a low frequency k-clock to sample optical coherence topography (oct) signals, as opposed to relying on a high frequency k-clock to obtain the same information. A resampler is used to resample the oct signal uniformly in the optical frequency domain.
07/24/14
20140207329
 Method and apparatus for determining tire condition and location using wheel speed sensors and acceleration sensors patent thumbnailMethod and apparatus for determining tire condition and location using wheel speed sensors and acceleration sensors
A tire condition sensing apparatus includes a tire-based sensor for sensing two relative rotational positions of its associated tire relative to the earth's horizon as the tire rotates and provides first and second signals indicative thereof. A transmitter for transmits tire condition information and a signal processing time delay value in response to the first and second signals.
07/24/14
20140205113
 Expression-enabled audio signal processing platform patent thumbnailExpression-enabled audio signal processing platform
Our device relates to an audio signal processing device, a means for sharing expression control signals between physically separate sound processing devices, a method of deriving related expression control signals from a common expression control signal, and a means for mapping control signals from an expression device to one or more of the various control parameters of the audio signal processing device.. .
07/24/14
20140205105
 Audio system signal processing control using microphone movement information patent thumbnailAudio system signal processing control using microphone movement information
An audio conferencing system has a base station, a speaker and one or more mobile microphones, and it operates to receive audio information from both a far-end audio source and a near-end audio source and to process the audio information for transmission to a far-end audio conferencing system. At least one of the mobile microphones has a motion detection device and operates to send detected motion information to the base station.
07/24/14
20140205104
 Information processing apparatus, information processing method, and program patent thumbnailInformation processing apparatus, information processing method, and program
There is provided an information processing apparatus including a detection unit configured to detect a usage state of a sound output unit, and a signal processing unit configured to tune sound signals to be outputted to the sound output unit, based on the usage state of the sound output unit.. .
07/24/14
20140204722
 System and method for controlling a digital audio source patent thumbnailSystem and method for controlling a digital audio source
An apparatus for signal processing, wherein a disc is placed on a turntable and is provided with a groove which can be followed by the pick-up element, and employing a time-code signal wherein during use of the disc the said time-code signal controls the digital audio source.. .
07/24/14
20140204389
Optical tomograph and optical tomographic method
A luminous flux including laser light of different wavelengths outgoing from a light source unit is split into two luminous fluxes, the first luminous flux is focused on a sample with an objective lens, and the second luminous flux functions as reference light without radiating it onto the sample. Signal light reflected from the sample and the reference light are multiplexed by a polarized beam splitter and are made to interfere on four photodetectors out of phase in a photodetection unit.
07/24/14
20140204388
Optical measuring apparatus
Provided is a compact, low-cost optical measuring apparatus capable of acquiring an image of a target to be measured without moving a mirror or using a wavelength-scanning light source or beam splitter. A laser beam emitted from a light source is split into first and second beams, and the first beam is focused as a signal beam onto the target by a lens for irradiation purposes, while the second beam is reflected as a reference beam by a mirror without irradiating the target.
07/24/14
20140204272
Display apparatus and control method thereof
A display apparatus, includes: a display unit; a signal receiving unit which receives a video signal; a signal processing unit which processes the video signal received by the signal receiving unit to be displayed; an input unit through which a frame rate demonstration function is selectable; and a control unit which controls the signal processing unit so that the video signal is processed into an inherent frame rate of the video signal and at least one corrected frame rate which is different from the inherent frame rate to be displayed in different areas of the display unit if the frame rate demonstration function is selected through the input unit.. .
07/24/14
20140204251
Signal processing apparatus, image pickup apparatus, and image pickup system
A signal processing apparatus which processes signals obtained from an image pickup element including a plurality of first pixels sharing a first microlens and a plurality of second pixels sharing a second microlens, the first pixels and the second pixels having saturation characteristics different from each other, and the signal processing apparatus includes a saturation detector configured to detect a saturated pixel whose charge amount has reached a saturation level among the first pixels and the second pixels, and an estimating portion configured to estimate the charge amount of the saturated pixel using a nearby pixel of the saturated pixel.. .
07/24/14
20140203873
Signal processing apparatus and method
A signal processing apparatus and method are disclosed. A common mode signal extraction unit is configured to extract a common mode signal from input signals inputted to a differential amplifier.
07/24/14
20140203801
Amplitude evaluation by means of a goertzel algorithm in a differential transformer displacement sensor
Displacement sensor arrangement including at least one primary coil, at least a first and a second secondary coil and at least one magnetically soft coupling element, which magnetically couples the primary coil and the two secondary coils, the displacement sensor being designed so that a position and/or deflection depending on the magnetic coupling between the primary coil and at least the first and second secondary coil is detected, the displacement sensor arrangement having a signal processing unit, which is designed to perform digital signal processing of at least one electrical variable of the two secondary coils and determine the position and/or deflection, the signal processing unit having at least one goertzel filter.. .
07/24/14
20140203718
Ac led lighting apparatus using voltage edge detector
Exemplary embodiments of the present invention disclose an alternating current (ac) light emitting diode (led) lighting apparatus including a rectification unit configured to receive an ac voltage and output a dc rectified voltage, an led unit connected to the rectification unit, the led unit comprising at least two light emitting groups, each light emitting group comprising at least one led, and an led driving control unit connected to the rectification unit, the led driving control unit configured to establish a series or parallel connection between the light emitting groups, by comparing a voltage level of the rectified voltage with a reference voltage. The led driving control unit is configured to calculate a reference voltage adjustment value in order to compensate for a signal processing delay of the led driving control unit..
07/24/14
20140203708
Driving circuit with an over-voltage protection device for modulating an electrical parameter of a driven device
A driving circuit with an over-voltage protection device for modulating an electrical parameter of a driven device includes at least a boost circuit, a signal processing circuit, an over-voltage protection device, a modulation device and a control circuit. The output terminal of the boost circuit is electrically coupled in series to a driven device, a transistor and a grounded feedback resistor sequentially, wherein the output terminal of the boost circuit is further electrically coupled to a voltage dividing circuit for outputting a voltage dividing signal.
07/24/14
20140203197
Apparatus for measuring positions of other apparatus and method therefor
Disclosed are an apparatus for measuring position of other apparatus and a method for the same. The apparatus may comprise at least one light emitting part transmitting a photo signal, at least one light receiving part receiving a photo signal transmitted from other apparatus, and a signal processing part controlling the at least one light emitting part to transmit the photo signal including identification information of itself, acquiring identification information of the other apparatus based on the photo signal received from the other apparatus, and acquiring a positional information of the other apparatus based on the acquired identification information of the other apparatus.
07/24/14
20140203177
Resin type identification method and resin type identification apparatus
To obtain a resin type identification method and a resin type identification apparatus with which an optimum infrared reflection spectrum for identifying a resin piece can be selected and accurate identification processing can be performed successively on individual resin pieces even when the resin pieces are identified using a single optical detector, at least one identifying signal power is selected by executing signal processing on the basis of signal powers corresponding to infrared reflection intensities obtained by emitting infrared light onto the resin piece, and the resin type of the resin piece is identified on the basis of an infrared reflection spectrum corresponding to the selected identifying signal power.. .
07/24/14
20140202246
Sensor with a single electrical carrier means
A sensor having at least one sensor element (1), at least one signal processing element (2), and a housing (7) which has at least one fastening means. An electrical interface is provided for electrically connecting the sensor.
07/17/14
20140201754
Wireless communication base station and wireless communication method
To prevent the switching time influences power saving performance and packet loss prevention performance, it is provided a wireless communication base station for communicating with a terminal, comprising: a plurality of baseband signal processing units for performing baseband signal processing; a baseband allocation unit for allocating the baseband signal processing to the plurality of baseband signal processing units; and a linear processing unit for composing signals processed by the plurality of baseband signal processing units. The baseband allocation unit selects, for each data block, a baseband signal processing unit to which the baseband signal processing for the each data block is to be allocated out of the plurality of baseband signal processing units.
07/17/14
20140199944
Touch-screen terminal and method and system for near-field communication
A touch-screen terminal, method and system for near-field communication are provided. The touch-screen terminal includes a touch sensor, the touch sensor includes multiple driver electrodes and inductive electrodes disposed on a substrate to form capacitor structures.
07/17/14
20140198992
Linear transform-based image processing techniques
Signal processing techniques utilize operations performed in linear transform domains to perform operations including noise reduction, noise shaping, and gradient integration. The standard wavelet shrinkage method may be altered to constrain the modification of wavelet coefficients towards an initial estimate of the adjusted coefficients.
07/17/14
20140198933
In-vehicle audio device
In a structure of an in-vehicle audio device, the audio system has an audio signal supplying section, an audio signal processing section, a balance adjustment section and an audio signal output section. A right audio signal processing section and a left audio signal processing section in the audio signal processing section perform a process of filtering audio signals supplied from the audio signal supplying section on the basis of a transfer function.
07/17/14
20140198878
Method for designing band pass delta-sigma modulator, band pass delta-sigma modulator, signal processing device, and radio transceiver
F0 is a center frequency of a quantization noise stop band of the band pass delta-sigma modulator.. .
07/17/14
20140198812
Communications network transport node, optical add-drop multiplexer and method of routing communications traffic
A communications network transport node comprising an optical add-drop multiplexer (oadm), comprising optical signal processing apparatus, electrical signal routing apparatus, and a packet switch. Each optical signal processing apparatus comprises an optical input, an optical output, optical-to-electrical (o-e) signal conversion apparatus arranged to receive input optical channel signals and to convert each into an input radio frequency (rf) modulated electrical channel signal, and electrical to optical (e-o) signal conversion apparatus arranged to receive output rf modulated electrical channel signals and to convert each into an output optical channel signal.
07/17/14
20140197302
Solid-state image sensor
A solid-state image sensor comprising a pixel array having a plurality of pixels, and a plurality of signal processing circuits each of which amplifies a signal of the pixel array, wherein each of the plurality of signal processing circuits comprises an operation amplifier having an input terminal and an output terminal, an input capacitance arranged between the input terminal and the column signal line, and a feedback circuit which connects the input terminal with the output terminal, wherein the feedback circuit is configured to form a feedback path in which a first and a second capacitance elements are arranged in series in a path connecting the input terminal to the output terminal, and a third capacitance element is arranged between a reference potential and a path connecting the first capacitance element to the second capacitance element.. .
07/10/14
20140195577
Method and apparatus for signal filtering and for improving properties of electronic devices
The present invention relates to nonlinear signal processing, and, in particular, to adaptive nonlinear filtering of real-, complex-, and vector-valued signals utilizing analog nonlinear differential limiters (ndls), and to adaptive real-time signal conditioning, processing, analysis, quantification, comparison, and control. More generally, this invention relates to methods, processes and apparatus for real-time measuring and analysis of variables, and to generic measurement systems and processes.
07/10/14
20140195182
Novel digital signal processing method for measurement of ac voltage with power converters at light load operation
An observation is made that the peak voltage value for a rectified ac voltage signal is substantially the same from cycle to cycle. Using this observation, a method of measuring an ac voltage is used to determine a more accurate rms voltage value under light load conditions.
07/10/14
20140195117
Torque detecting device and electric power steering device
There is provided a torque detecting device for providing a highly accurate torque signal, and an electric power steering device using the torque detecting device. A torque sensor is provided with a first coil pair and a second coil pair, which detect a relative displacement between an input shaft and an output shaft by corresponding the relative displacement to a change in impedance.
07/10/14
20140195104
Wheel speed sensor with support for indirect tire pressure monitoring
The present disclosure relate to an indirect tire pressure monitoring system (tpms). In some embodiments, the indirect tpms has magnetic field sensor that detects a modulated magnetic field indicative of one or more resonance parameters of an automobile tire.
07/10/14
20140195085
Mobile working machine
A mobile working machine includes an energy source (101), a storage circuit (103) for storing electrical energy, a first electronic power converter stage (104) between the storage circuit and the energy source, an electrical machine (106) for driving actuators, a second electronic power converter stage (107) between the storage circuit and the electrical machine, and a control system (108) for controlling the first electronic power converter stage responsive to the power taken by the second electronic power converter stage from the storage circuit, the control system providing a control signal path from the storage circuit to the first electronic power converter stage. The signal processing properties of the control signal path are dependent on the electrical energy stored by the storage circuit in order to allow the electrical energy to vary, but within desired limits, so as to reduce the peak power taken from the energy source..
07/10/14
20140194142
Wireless localisation system
Disclosed is an apparatus for estimating the location of a remote node. The apparatus comprises an antenna array comprising a plurality of elements in a fixed spatial arrangement, at least one element being a transmitting element configured to transmit a first wireless signal to the remote node, and at least two elements being receiving elements configured to receive a second wireless signal transmitted by the remote node in response to the first wireless signal.
07/10/14
20140193163
Signal processing device, signal processing method, and communication device
A signal processing device includes: a plurality of multipliers configured to obtain a first multiplication result by multiplying a tap coefficient by 1/√2; a plurality of mappers configured to output a mapping result based on a first mapping coefficient and a digital input signal; and a plurality of first selectors configured to select the first multiplication result based on the mapping result.. .
07/10/14
20140193134
Content data transmission system and content data transmission method
[problem] in a system that transmits content data from a content replay device to a content output device, to prevent a deterioration in audio quality or video data picture quality while being able to increase the simplicity of a setting-altering operation without requiring complicated signal processing. [solution] the present invention is provided with: the content replay device, which receives an operation clock signal transmitted from the content output device via an operation clock transmission cable, operates on the basis of the operation clock signal, and transmits content data replayed by a replay unit to the content output device via a multimedia transmission cable; and the content output device, which generates the operation clock signal transmitted to the content replay device on the basis of an output device operation clock signal, transmits the operation clock signal to the content replay device via the operation clock transmission cable, and receives, performs signal processing on, and outputs to an external device the content data transmitted from the content replay device via the multimedia transmission cable..
07/10/14
20140193131
Content data transmission system and content data transmission method
[problem] in a system for transmitting content data from a content reproducing apparatus to a content output apparatus, no complicated signal processing is required, setting change operations can be simplified, and the degradation of sound quality and the degradation of picture quality of video data are prevented. [solution] there are included: a content reproducing apparatus that receives an operation clock signal from a content output apparatus via an operation clock transmission cable, operates on the basis of the operation clock signal, and transmits content data, which has been reproduced by a reproducing unit, to the content output apparatus via a multimedia transmission cable; and the content output apparatus that generates, on the basis of an output apparatus operation clock signal, the operation clock signal to be transmitted to the content reproducing apparatus, transmits the operation clock signal to the content reproducing apparatus reproducing apparatus via the operation clock transmission cable, receives the content data from the content reproducing apparatus via the multimedia transmission cable, and performs a signal processing of the received content data for output to an external apparatus..
07/10/14
20140193072
Adaptive background estimation
Various methods and systems are provided for adaptive background estimation. In one embodiment, among others, a signal processing device includes at least one processing unit and a memory storing a background estimation system executable in the at least one processing unit.
07/10/14
20140192938
Signal processing circuit and signal processing method
A signal processing circuit includes: a delay line configured to output, to a plurality of taps, signals with different delay times obtained by delaying an input signal, respectively; and a plurality of synchronization circuits configured to sample the signals from the plurality of taps in a phase in synchronization with a clock signal, wherein each of the plurality of synchronization circuits samples a sample signal from one of the plurality of taps in different phases and outputs a plurality of output signals.. .
07/10/14
20140192318
Sensor system for determining the control signals activating ciliary muscles
In a sensor system for determining the control signal supplied to the ciliary muscles of an eye for adjusting the focal length of the lens of an eye, a contact element of an electrically non-conductive material and provided with sensors is disposed on the cornea of the eye so that the sensors are arranged in contact with an annular area of the cornea next to the ciliary eye muscles so as to be able to sense the focal adjustment signals supplied to the ciliary muscles and the sensed adjustment signals are supplied to a signal processing unit which provides a control signal to a lens system with adjustable focal length for adjusting the focal length thereof depending on the focal adjustment signals of the ciliary eye muscles.. .
07/10/14
20140192250
Imaging apparatus, signal processing method, and program
The present disclosure provides an apparatus and a method for generating a wide dynamic range image by executing a pixel value combination process of a plurality of different exposure time setting pixels. Control of a different exposure time is performed for each of a plurality of pixels of the same colors configuring a pixel block and an addition pixel value obtained by adding outputs of the plurality of pixels of the same colors of the pixel block is generated.
07/10/14
20140192231
Image signal processing apparatus and a control method thereof, and an image pickup apparatus and a control method thereof
An image pickup apparatus includes a first image reduction unit configured to reduce the size of an image output by an image pickup element, a memory configured to store the image reduced by the first image reduction unit, an external output unit configured to output the image stored in the memory, a display configured to display an image being shot, a second image reduction unit configured to reduce, to the display size on the display, the image reduced by the first image reduction unit, without causing the reduced image to be stored in the memory and a signal processor for the display configured to perform signal processing of the image reduced to the display size on the display.. .
07/10/14
20140192228
Digital image signal processing method, medium for recording the method, and digital image signal processing apparatus
Provided is a digital image signal processing method, a recording medium for recording the method, and a digital image signal processing apparatus, in which a storage area of a memory may be efficiently used and an image desired by a user can be stored even when the storage area of the memory is insufficient. According to the present invention, a scene of an image may be recognized and a resolution and an image quality may be modified according to the recognized scene, thereby efficiently using the storage area of the memory..
07/10/14
20140192160
Three-dimensional image sensing device and method of sensing three-dimensional images
A three-dimensional image sensing device includes a light source, a sensing module, and a signal processing module. The sensing module includes a pixel array, a control unit, and a light source driver.
07/10/14
20140191936
Driving module and driving method
A driving module for a liquid crystal display device is disclosed. The driving module includes a data line signal processing unit, for generating a plurality of data driving signals, a scan line signal processing unit, for generating a plurality of gate driving signals, and a control unit, for generating a display clock, to control the data line signal processing unit and the scan line signal processing unit to address a plurality of pixels of the liquid crystal display device according to the display clock.
07/10/14
20140191791
Adder
A circuit in which a storage function and an arithmetic function are combined is proposed by using a transistor with low off-state current for forming a storage element. When the transistor with low off-state current is used, electric charge can be held, for example, in a node or the like between a source or a drain of the transistor with low off-state current and a gate of another transistor.
07/10/14
20140191342
Mems sensor
There is provided a mems sensor including a signal processing lsi equipped with a temperature sensor for measuring temperature of a sensor, and a mems sensor chip overlaid on the signal processing lsi, the mems sensor chip being mounted on a heat generating part of the signal processing lsi. This mems sensor decreases the effects caused by thermally triggered changes in temperature characteristics..
07/10/14
20140191199
Nanoscale qca-based logic gates in graphene technology
Moreover, the corresponding energy structure may be selected so as to allow operation of the qca assemblies at ambient temperature. Hence, the signal processing capabilities of qca assemblies may be obtained at significantly reduced complexity compared to conventional quantum-based qca assemblies, which typically operate at very low temperatures..
07/10/14
20140191136
Photon counting imaging method and device with instant retrigger capability
A method for photon counting imaging with improved high-rate counting performance includes the step of applying an instant retrigger capability with adjustable dead time in cells of the detector array and operates an apparatus using a layer of photo-sensitive material, an l×k array of photodetector elements arranged in the layer of the photosensitive material, an n×m array of readout unit cells, including amplifying elements and at least one readout unit cells for at least one photodetector elements. The readout unit cells are controlled by signal processing elements with each readout unit cell having internal signal processing elements to generate a discriminator output signal representing an amplified signal of the electron-hole pairs generated by an incident photon or a number of incident photons in the respective photodetector element.
07/10/14
20140191129
Fresnel lens and pyroelectricity sensor module including the same
A fresnel lens and a pyroelectricity sensor module are provided. The fresnel lens includes unit lens groups having different refractive indexes, and each of the unit lens groups includes unit lenses.
07/10/14
20140190265
Accommodation of different type of sensors in vibration monitoring system using external input or daughter board wtih interchangeable operating hardware
An apparatus and method for a monitoring system for operating equipment is provided. The monitoring system includes a first sensor having first operating parameters.
07/03/14
20140188470
Flexible architecture for acoustic signal processing engine
A disclosed speech processor includes a front end to receive a speech input and generate a feature vector indicative of a portion of the speech input and a gaussian mixture (gmm) circuit to receive the feature vector, model any one of a plurality of gmm speech recognition algorithms, and generate a gmm score for the feature vector based on the gmm speech recognition algorithm modeled. In at least one embodiment, the gmm circuit includes a common compute block to generate feature a vector sum indicative of a weighted sum of differences squares between the feature vector and a mixture component of the gmm speech recognition algorithm.
07/03/14
20140188436
Test apparatus and test method
Provided is a test apparatus that tests a device under test, comprising a plurality of comparators that each receive a signal under measurement output by the device under test, have a common reference level set therein, and compare a signal level of the signal under measurement to the reference level; and a signal processing section that generates a single result signal based on the plurality of comparison results output by the comparators. Also provided is a test method using the test apparatus..
07/03/14
20140188418
Pulse processing device and radiation measuring device
Provided is a pulse processing device that accelerates signal processing and prevents counting loss. Provided also is a radiation measuring device in which counting loss is prevented and counting capacity is increased by installing the pulse processing device.
07/03/14
20140187975
Ecg artifact reduction system
An ecg signal processing system which removes the cpr-induced artifact from measured ecg signals obtained during the administration of cpr.. .
07/03/14
20140187938
Ultrasound inspection apparatus, signal processing method for ultrasound inspection apparatus, and recording medium
Provided is an ultrasound inspection apparatus ensuring the real-time property during ultrasound imaging, reducing the data amount to be stored, and making sound speed value correction after the imaging to allow improvement in image quality, tissue characterization, and so forth with high accuracy. The ultrasound inspection apparatus includes: a first reception signal memory storing element data; an image producer adapted to perform phasing and adding on element data based on a specified sound speed value to produce a sound ray signal, and produce ultrasound image data; a sound speed determiner adapted to determine the optimum sound speed value from a plurality of pieces of ultrasound image data produced using element data; a storage necessity determiner adapted to determine element data whether or not to satisfy a specified condition; and a second reception signal memory storing the element data as determined to satisfy the specified condition..
07/03/14
20140187914
Interventional or non-interventional instrument for use in an mri apparatus
An interventional or a non-interventional instrument like a catheter, a surgical device, a biopsy needle, a pointer, a stent or another invasive or non-invasive device, like a position marker, or a surface or local coil like a head coil is disclosed, wherein these instruments are provided with an mr-safe rf transmission line or cable (2, 3) for connecting the instrument with related rf transmit/mr receive units or other signal processing units for operating the instrument during an mr imaging or mr examination of an examination object. Basically, mr safety is obtained or increased by means of a plurality of fuses (6) which are serially connected into the transmission line or cable (2, 3)..
07/03/14
20140187182
Method and apparatus for calibrating an envelope tracking system
A method of calibrating an envelope tracking system for a supply voltage for a power amplifier module within a radio frequency (rf) transmitter of a wireless communication unit is described. The method comprising, within at least one signal processing module of the wireless communication unit, applying a training signal comprising an envelope that varies with time to an input of the rf transmitter, receiving at least an indication of instantaneous output signal values for the power amplifier module in response to the training signal, calculating instantaneous gain values based at least partly on the received output power values, and adjusting a mapping function between an instantaneous envelope of a waveform signal to be amplified by the power amplifier module and the power amplifier module supply voltage to achieve a power amplifier module gain, for example that is monotonically increasing as a function of power amplifier output power..
07/03/14
20140186176
Method of detecting a degree of yaw error of a wind turbine
A method of determining a degree of yaw error of a wind turbine is provided. The method includes obtaining wind pressure measurement values from in front of the rotor plane, which wind pressure measurement values exhibit a periodic nature related to a rotation of a spinner of the wind turbine, performing a signal processing step to process the wind pressure measurement values to determine a phase offset of the wind pressure measurement values relative to an angular reference, and deriving a yaw error angle from the phase offset.
07/03/14
20140186035
Optical network unit having power saving function and power saving method thereof
An optical network unit (onu) having a power saving function for reducing power consumption in an optical network and a power saving method thereof are provided. The onu includes a first signal transmitter-receiver unit configured to transmit and receive a signal to and from an optical line terminal, a second signal transmitter-receiver unit configured to transmit and receive a signal to and from customer premises equipment through multiple communication ports, a signal processing unit configured to control a signal to be transmitted and received through the first signal transmitter-receiver unit and the second signal transmitter-receiver unit, and a processor configured to control powers of the first signal transmitter-receiver unit and the signal processing unit according to whether data traffic is received through the plurality of communication ports..
07/03/14
20140185832
Assembly with an analog data processing unit and method of using same
An assembly includes an analog signal processing unit. An analog signal path and an amplifier an automatic gain control unit are coupled to the signal path.
07/03/14
20140185819
Handset and headset
Thus there is provided an earphone or headset comprising a housing, an internal microphone, an external microphone and a signal processing unit. The signal processing unit is connected to the internal microphone and the external microphone.
07/03/14
20140185816
Apparatus and method for processing audio signal
An audio signal processing apparatus and method for processing an audio signal are provided. The audio signal processing apparatus includes a signal detector configured to detect a long-term envelope and a short-term envelope of a lower range signal of an input signal, and a controller configured to control a gain in a beat section of the input signal, wherein the beat section is determined based on the detected long-term envelope and the short-term envelope of the lower range signal..
07/03/14
20140185702
Methods and apparatuses for multiple access in a wireless communication network using dct-ofdm
The present invention provides an advantageous transmitter apparatus and associated method, for generating a single-carrier discrete cosine transform (sc-dct) ofdm signal for transmission. These transmit-side innovations include circuit configuration and signal processing methods for mapping ku “input subcarriers” to n “output subcarriers,” where the “output subcarriers” are some or all of the subcarriers defined for the sc-dct ofdm signal.


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