Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 5,137

Document Document Title
WO/2018/103932A1
The invention relates to a method for adapting an electronic filter unit (40). At the beginning, a plurality of first input values (31) is captured within a first time period. Subsequently, filtered output values (36) are produced by fil...  
WO/2018/044801A1
Embodiments of source separation for reverberant environment are disclosed. According to a method, first microphone signals for each individual one of at least one source are captured respectively by at least two microphones for a period...  
WO/2017/189271A1
Embodiments of the present disclosure provide mechanisms that enable designing an FIR filter that would have a guaranteed globally optimal magnitude response in terms of the minimax optimality criterion given a desired weight on the erro...  
WO/2017/135012A1
An active vibration and noise control device robust against outside disturbances, and an active vibration and noise control circuit are provided. An adaptive control circuit (50) of this active vibration and noise control device (24) has...  
WO/2017/129569A1
Method and device for determining the parameters of an adaptive Kalman filter from an ARMA model of data from a time series and method and device for determining an ARMA model approximating a time series.  
WO/2017/100298A1
Various examples are provided related to speech recognition. In one example, a method includes converting an auditory signal into a pulse train, segmenting the pulse train into a series of frames having a predefined duration, and identif...  
WO/2017/097161A1
An apparatus, comprising a receiver configured to receive a primary signal that comprises a narrowband noise component and a broadband noise component, a processor coupled to the receiver and configured to determine, in a time domain, an...  
WO/2017/017056A1
Partitioned block frequency domain adaptive filter device comprising: a frequency domain adaptive filter configured for filtering a frequency domain representation of a time domain input signal depending on a set of filter coefficients c...  
WO/2017/012350A1
A filter state divergence judgement method and device, which are used for solving the problems in the prior art that a filter state judgement method has a relatively high calculation complexity and has a possibility of misjudgement. The ...  
WO/2016/134839A1
A channel selector (C0) for a frequency modulation radio frequency receiver, comprising a band-pass filter (2), of which the frequency band (BPF) is centred on the central frequency (F0) of the channel to be selected, and has a width tha...  
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...  
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...  
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...  
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 ...  
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...  
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 ...  
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 ...  
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...  
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...  
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...  
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 ...  
WO/2014/037347A3
A method in a prediction filter for stabilizing filter performance of the prediction filter is provided. The method comprises computing a filter magnitude metric related to the prediction filter, smoothing the filter magnitude metric, cr...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
WO/2012/139737A4
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 ...  
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 ...  
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, ...  
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 ...  
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...  
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. ...  
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...  
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...  
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...  
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...  
WO/2011/100491A3
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...  
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...  
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...  
WO/2010/111619A3
A voltage mode transmitter equalizer has high efficiencies, yet consumes substantially constant supply current from the power supply and provides constant back-match impedance. The voltage mode transmitter equalizer is configured such th...  
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...  
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) ...  

Matches 1 - 50 out of 5,137