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WO/2016/106145A1 |
A method is disclosed for audio object extraction from an audio content which includes identifying a first set of projection spaces including a first subset for a first channel and a second subset for a second channel of the plurality of...
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WO/2016/087087A1 |
In order to determine, at least approximately, statistical properties of raw measured values, particularly measurement noise and/or mean errors, without detailed knowledge of a filter procedure or filter for the raw measured values and w...
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WO/2016/055914A1 |
A method includes receiving a signal from a remote transmitter via an electrically- tunable antenna (32, 36) having a tunable element (34, 38, 98). An adjustment, to be applied to a response of the electrically-tunable antenna, is calcul...
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WO/2016/053939A1 |
The technology described in this document can be embodied in a computer-implemented method that includes receiving, at one or more processing devices, a plurality of values representing a set of coefficients of an adaptive filter over a ...
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WO/2016/050049A1 |
Disclosed are a signal processing method and apparatus. The method of the present invention comprises: filtering first input signals according to at least two groups of adaptive filters, so as to obtain filtered first input signals; acqu...
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WO/2016/029066A1 |
A digital signal synthesizer for generating a frequency and/or phase modified digital signal output comprises an input buffer, a transform module, a processing module, and an output buffer. The input buffer receives a digital input that ...
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WO/2016/026263A1 |
The present invention provides a method and device for determining stable factors of an adaptive filter. The method comprises: determining a reference input matrix of a first input signal according to the first input signal input to the ...
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WO/2015/139631A1 |
In one embodiment, a method for training an adaptive filter includes receiving, by a processor from a device, an input signal and a training reference signal and determining a correlation matrix in accordance with the input signal, the t...
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WO/2015/125282A1 |
This invention provides a technique for optimizing the resolutions and ranges of digital-to-analog converters in accordance with a communication path. A decision feedback equalizer of an electric signal transmission apparatus comprises a...
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WO/2015/072904A1 |
Encoding and decoding schemes at an encoding device/transmitter and decoder device/receiver, respectively, for use in communicating the state of a system. In an example method carried out by an encoding device, state information x(k), wh...
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WO/2014/070570A1 |
One apparatus includes a notch filter that has a state observer unit and a parameter adaptation unit. The state observer unit is configured to receive a sampled noisy electrical signal and a sampled filtered electrical signal, the state ...
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WO/2014/006846A1 |
An active noise reduction device is used together with a secondary noise source which emits a secondary noise, and an error signal source which outputs an error signal which corresponds to a residual sound arising from interference betwe...
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WO/2014/002452A1 |
A reference-signal generation unit for this active-noise-reduction device outputs a vibration and a correlating reference signal to an adaptive filter unit. A filter-coefficient update unit sequentially updates a filter coefficient of th...
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WO/2013/183900A1 |
The present invention relates to a device and method for eliminating therapeutic ultrasound interference signals during simultaneous ultrasound therapy and diagnosis, comprising a notch filter and a frequency control unit for controlling...
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WO/2013/175055A1 |
The specification and drawings present a new apparatus and method for an RF tracking filter which may be used in RF transceivers. Instead of having band pass filter and switches in the signal path exemplary embodiments of the invention d...
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WO/2013/167498A1 |
There is provided a filter network arrangement comprising a filter network; and one or more correction networks, wherein the one or more correction networks is arranged to substantially equalise the passband gain and group delay of the f...
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WO/2013/128783A1 |
A Fourier transform unit (111) subjects the digital signal of a time axis to a Fourier transform, and generates a frequency domain signal which is the signal of the frequency axis. A filter unit (113) uses a number (N) of first coefficie...
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WO/2013/114797A1 |
The present invention pertains to: a physical quantity measuring device having good responsiveness and the ability to measure physical quantities with high precision by efficiently eliminating noise components contained in a signal outpu...
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WO/2013/076353A1 |
A radio-powered apparatus (100) is protected from overloading in strong electromagnetic fields. The apparatus uses a resonant circuitry (120) to receive antenna signals at resonance frequency of the resonant circuitry and to obtain power...
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WO/2013/036154A1 |
Method for filtering a signal (from a signal-noise mixture) using a Kalman adaptive filter with a passband which is adjusted in accordance with a linear estimate of a parameter of the signal being filtered which characterizes the dynamic...
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WO/2012/150942A1 |
A method of frequency-domain filtering is provided that includes a plurality of filters, the plurality of filters including at least one constrained filter(s) W j =I, I and at least one unconstrained filter(s) W k =1,K- The method includ...
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WO/2012/139737A1 |
The invention relates to a filter apparatus (100) having a signal input (101) to which an input signal is applied which contains a useful component and a noise component, a fast signal path (102) and a slow signal path (103) arranged in ...
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WO/2012/139357A1 |
The invention is applicable in MACROBUTTON MACROBUTTON signal disposal field, and a method for constructing a subband self-adaptive filter is provided. The method comprises: carrying out two-stage decomposition and self-adaptive filterin...
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WO/2012/125230A1 |
Regardless of the presence of echo or uplink speech, a microphone signal is received at a small filter and this small filter is functionally and/or physically separate from an adaptive echo canceller filter. The signal is applied to the ...
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WO/2012/104828A1 |
A method and apparatus for filtering a reference signal by a series of taps having coefficients, comprising dividing the taps into at least one layer of a plurality of groups, each group comprising a plurality of taps, as a first layer, ...
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WO/2012/094087A1 |
An VQ imbalance compensation block (300) of a RF receiver for compensating an imbalance between an in-phase component and a quadrature component of an RF signal is disclosed. The compensation block includes a conjugation block (310); an ...
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WO/2012/059909A1 |
A method and adaptive processor for estimating a reference signal, comprising a method for estimating a reference signal comprising: A method for estimating a parametric representation of a reference signal using, comprising: receiving a...
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WO/2012/046582A1 |
The disclosed signal processing device, signal processing method, and signal processing program remove, without delay and at low processing cost, a second signal from a mixed signal in which a first signal and a second signal are mixed. ...
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WO/2011/129725A1 |
The present invention relates to a method and arrangement for an improved noise canceller in a speech encoder. Sound signals are captured at a primary microphone in conjunction with a reference microphone. An adaptive shadow filter is ad...
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WO/2011/123026A1 |
A method for linear filtering of noise in a sensorgram generated from a surface plasmon resonance apparatus, the method comprising: providing a linear filter of variable length to filter an output signal in the sensorgram; and determinin...
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WO/2011/106936A1 |
The invention relates to a filter device for filtering an input signal, the input signal comprising a clock signal having a clock frequency. The filter device comprises a filter (101) for filtering the input signal with a first set of fi...
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WO/2011/100491A2 |
Various methods and systems are provided for related to adaptive systems using correntropy. In one embodiment, a signal processing device includes a processing unit and a memory storing an adaptive system executable in the at least one p...
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WO/2011/069230A1 |
A dynamically selectable resistor network is provided in a star configuration for producing a weighted sum of input values, without attenuation from near zero contributions. Each branch of the star connected network comprises sets of imp...
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WO/2011/016769A1 |
A method for linear filtering of noise in a SPR sensorgram generated from a surface plasmon resonance apparatus is provided. The method includes providing a linear filter of variable length to filter an output signal in the sensorgram. T...
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WO/2010/069365A1 |
An estimation unit (30, 30a-c) for estimating a nonlinearity error of a conversion circuit (10), such as an ADC, adapted to receive a continuous-time input signal and output a digital output signal. The continuous-time input signal is es...
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WO/2010/055650A1 |
Provided is an adaptive filter which can prevent increase of an adaptation error in a double talk state without requiring arrangement of a double talk detection circuit. The adaptive filter includes a tap coefficient setting unit (202) ...
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WO/2010/033405A1 |
A medical device for determining a respiratory effort having a pressure sensor to sense pressure signals, a housing having system components positioned therein, and a microprocessor positioned within the housing, wherein the microprocess...
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WO/2010/033401A1 |
An apparatus for determining a respiration parameter in a medical device in which a pressure sensor senses pressure signals, and a signal processor, coupled to the pressure sensor, receives the sensed pressure signals and generates corre...
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WO/2010/033400A1 |
A system and method for filtering a pressure signal in a medical device in which a sensor terminal senses the pressure signal, an electrode terminal receives cardiac electrical signals, a signal filtering system filters the sensed pressu...
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WO/2010/027722A1 |
The application relates to a method for determining at least one updated filter coefficient of an adaptive filter (22) adapted by an LMS algorithm. According to the method, filter coeffi-cients of a first whitening filter (25') are deter...
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WO/2008/088257A9 |
The invention is directed towards a method of estimating the load on a cell in a wireless network as well as to a cell load estimating device. According to the invention a 5 determination (46) is made of a value (R) indicative of the deg...
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WO/2009/064653A1 |
A receiver includes a subspace filter having first (410) and second (420) basis filters, with the first (410) basis filter module generating a weighted average channel estimate (767). The receiver collects a plurality of channel estimate...
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WO/2009/038182A1 |
A system identifying device for identifying an unknown system interposed between first and second input terminals. The system identifying device preferably comprises adaptive and dependent filters which receive a signal supplied through ...
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WO/2009/018655A1 |
A method and apparatus for signal acquisition in an OFDM receiver relies on a preamble training sequence to synchronize the receiver in time (e.g. determining the start of a frame) and in frequency (carrier frequency offset compensation)...
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WO/2008/126287A1 |
A selection function section (11) selects an optimal candidate of a control signal (y*) controlling a speaker (6) to generate a control sound for suppressing noise among a plurality of control signal candidates (y1-yn). For the purpose o...
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WO/2008/110015A1 |
Embodiments of the invention provide an adaptive notch filter that employs a power detector as a feedback control mechanism to steer the notch filter. One such embodiment of the invention provides adaptive control of the notch filter cap...
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WO/2008/075548A1 |
Provided is an equalization filter which solves a problem of limiting a range wherein distortion of a transmission signal can be compensated. A measuring instrument (104) measures a distortion quantity that characterizes distortion of th...
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WO/2008/029643A1 |
An equalization filter circuit includes: a first transmission line having an input terminal (101) dependently connected to a plurality of first delay devices (104a); a second transmission line having an output terminal (102) dependently ...
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WO/2008/029532A1 |
A reproduced signal processing apparatus for subjecting signals read from a recording medium to adaptive processings for reproduction. In this apparatus, the read signal is filtered by a base line circuit (103) such that the DC component...
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WO/2007/142111A1 |
[PROBLEMS] To detect divergence of a coefficient of an adaptive filter without setting in advance, a threshold value based on characteristics of a device or an environment from which a noise is to be erased. [MEANS FOR SOLVING PROBLEMS] ...
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