Patents for H03H 21 - Adaptive networks (3,855)
09/1996
09/03/1996US5553154 Vehicle internal noise reduction system and the method thereof
09/03/1996US5553153 Method and system for on-line system identification
09/03/1996US5553150 Reverberation - imparting device capable of modulating an input signal by random numbers
09/03/1996US5553014 Adaptive finite impulse response filtering method and apparatus
08/1996
08/29/1996WO1996026573A1 Distortion correction device for a path of propagation in transmission systems
08/28/1996EP0729288A2 Noise canceler
08/28/1996EP0729229A2 Adaptive balance filter
08/28/1996CN1129888A Fixed cellular terminal for two-wire telecommunications services
08/28/1996CN1129880A Process for fast blind equalization of an adaptive equalizer
08/27/1996US5550935 Method for multiframe Wiener restoration of noisy and blurred image sequences
08/27/1996US5550862 Method and apparatus for centering equalizer taps
08/24/1996CA2170221A1 Adaptive balance filter
08/22/1996WO1996025805A1 Echo canceller having kalman filter for optimal adaptation
08/22/1996DE19505611A1 Vorrichtung zur Entzerrung einer Fehlerstrecke in einem Übertragungssystem Device for equalizing a distance error in a transmission system
08/22/1996CA2211865A1 Echo canceller having kalman filter for optimal adaptation
08/21/1996EP0727882A2 Echo cancellation and suppression
08/21/1996EP0727109A1 A variable block size adaptation algorithm for noise-robust acoustic echo cancellation
08/20/1996US5548642 Optimization of adaptive filter tap settings for subband acoustic echo cancelers in teleconferencing
08/20/1996US5548570 Optical reproducing circuit having, a binarized signal pulse compensation circuit
08/14/1996EP0726658A2 Symbol and frame synchronization in both a TDMA system and a CDMA system
08/13/1996US5546460 Echo compensation device and 4/2-wire interface having such an echo compensation device
08/13/1996US5546459 Variable block size adaptation algorithm for noise-robust acoustic echo cancellation
08/13/1996US5546332 Process for compensating for quasi-periodic disturbances of measurement signals
08/08/1996WO1996024127A1 Adaptive speech filter
08/07/1996EP0725527A1 Echo cancelling system suitable for voice conference
08/07/1996EP0725497A2 Data receiving apparatus
08/07/1996EP0725488A2 Data receiving system for receiving data signal faded and delayed
08/07/1996EP0725480A1 Adaptively controlled filter
08/06/1996US5544201 Signal suppressing apparatus
08/06/1996US5543860 Video signal processing circuit using adaptive control
07/1996
07/31/1996EP0724353A2 Echo cancellation
07/31/1996EP0724262A2 Class 4 partial response using peak sampling
07/31/1996EP0724243A1 Apparatus and method for producing structural and acoustic vibrations
07/25/1996DE19531388C1 Blind signal source separation system
07/23/1996US5539832 Multi-channel signal separation using cross-polyspectra
07/23/1996US5539774 Dual decision equalization method and device
07/23/1996US5539773 Method and apparatus for ghost cancelling and/or equalizing
07/23/1996CA2078049C Decision-feedback equalizer capable of producing an equalized signal at a high speed without a remaining fading
07/16/1996US5537419 Receiver sample timing adjustment using channel impulse response
07/11/1996WO1996021304A2 Combating signal interference in digital transmission
07/11/1996DE4440964C1 Anordnung zum Entzerren von zwei Datenströmen Arrangement for equalizing two data streams
07/10/1996EP0721274A2 Method and apparatus for detecting a near-end speech signal
07/10/1996EP0721252A1 Subband echo canceler
07/10/1996EP0721251A1 Subband signal processor
07/10/1996EP0720799A1 Interference suppression in cdma systems
07/09/1996US5535194 Method and apparatus for echo canceling with double-talk immunity
07/09/1996US5535150 Single chip adaptive filter utilizing updatable weighting techniques
07/09/1996US5535149 Duplex adaptive digital filter and method of operation
07/05/1996CA2164025A1 Sub-band signal processor
07/04/1996WO1996020551A1 Adaptive equalization for priv transmission systems
07/04/1996WO1996020450A1 Low power filter coefficient adaptation circuit for digital adaptive filter
07/02/1996US5533120 Acoustic feedback cancellation for equalized amplifying systems
07/02/1996US5533067 Method and device for estimating transmitted signals in a receiver in digital signal transmission operations
07/02/1996US5532755 Apparatus for suppressing ghosts in signals modulating a carrier in quadrature phasing with a video carrier
07/02/1996US5532424 Tone generating apparatus incorporating tone control utliizing compression and expansion
07/02/1996CA2069065C Adaptive frequency dependent compensation for telecommunication channels
06/1996
06/26/1996EP0719070A1 Sound pick-up device, comprising a video system for the adjustment of parameters and process for adjusting
06/26/1996EP0719028A2 Optimization of adaptive filter tap settings for subband acoustic echo cancellers in teleconferencing
06/26/1996EP0719027A2 Method and arrangement for echo cancelling
06/25/1996US5530721 Equalizer and terminal device for mobile communications
06/25/1996US5530720 Method of calculating weighting coefficients for an analytical digitizer for signal processing, and analytical digitizer
06/19/1996EP0717559A2 Equalization apparatus with effective coefficient updating operation
06/19/1996EP0717536A1 Blind multipath correction for digital communication channel
06/19/1996EP0717507A2 Modem receiver pre-emphasis
06/19/1996EP0716864A2 Pacemaker with improved detection of electrical signals
06/18/1996US5528625 High speed quantization-level-sampling modem with equalization arrangement
06/18/1996US5528311 Complex filter apparatus for use in an equalizer
06/14/1996CA2161722A1 Modem receiver preemphasis
06/11/1996US5526378 Blind multipath correction for digital communication channel
06/05/1996EP0715407A2 Method and apparatus for controlling coefficients of adaptive filter
06/05/1996CN1123978A A hybrid equalizer arrangement for use in data aom unications equipment
06/04/1996US5524149 Circuit arrangement for echo suppression
06/04/1996US5524125 Interference cancellation apparatus capable of adaptive equalization and interference cancellation at a high speed on fading diversity channels
06/04/1996US5524022 Digital graphic equalizer
06/04/1996CA2086548C A method for optimizing an adaptive filter update coefficient
05/1996
05/30/1996WO1996016495A1 Distortion corrector for two data flows
05/30/1996DE4441912A1 Channel equaliser filter coefficients determination device
05/29/1996EP0713625A1 An audio processing system for teleconferencing
05/29/1996CN1123498A Method and device for removing double picture with standered symbol represented digital code
05/22/1996EP0713296A2 Matched spectral null codes for partial response channels
05/21/1996US5519727 Adaptive equalizer
05/17/1996WO1996014634A1 Reduction of computational burden of adaptively updating control filter(s) in active systems
05/15/1996EP0712213A2 An integrated circuit that performs multiple communication tasks
05/14/1996US5517524 For a time division multiple access system
05/14/1996US5517213 Process for fast blind equalization of an adaptive equalizer
05/08/1996EP0711035A2 System identification method apparatus by adaptive filter
05/08/1996EP0710947A1 Method and apparatus for noise suppression in a speech signal and corresponding system with echo cancellation
05/08/1996EP0710946A1 Double-walled active noise suppression device
05/08/1996EP0710908A2 A co-processor that performs multiple communication tasks on an integrated circuit
05/02/1996DE19538996A1 Estimation appts. to estimate coefficients of adaptive filter to emulate transmission characteristics of known signal
05/01/1996EP0709958A1 Adaptive finite impulse response filtering method and apparatus
05/01/1996CN1121660A Modulation method, recording method, reproducing method, recording and reproducing apparatus, recording and reproducing method, and reproducing apparatus
05/01/1996CA2157708A1 Adaptive finite impulse response filtering method and apparatus
04/1996
04/30/1996US5513223 FIR digital filter and method for signal processing thereof
04/30/1996US5513216 Hybrid equalizer arrangement for use in data communications equipment
04/30/1996US5513214 System and method of estimating equalizer performance in the presence of channel mismatch
04/30/1996US5512898 Coder-decoder for sending/receiving signals
04/29/1996CA2161575A1 Process and device for eliminating noise in a voice signal and echo cancelling system therefor
04/24/1996EP0708544A1 Apparatus for recognizing information carried by a received signal
04/23/1996US5511129 Method of conditioning programmable filter apparatus
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