Patents for H03H 21 - Adaptive networks (3,855) |
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01/21/1997 | US5596605 Radio receiver for use in the reception of digital multiplexing signals |
01/21/1997 | US5595179 Adaptive persistence processing |
01/21/1997 | CA2065913C Multi-channel active acoustic attenuation system |
01/14/1997 | US5594677 Method and apparatus for filtering high resolution digital signals |
01/14/1997 | US5594556 Scanner having a misalignment detector |
01/09/1997 | WO1997001101A1 A power spectral density estimation method and apparatus |
01/09/1997 | WO1996032776A3 Signal amplification system with automatic equalizer |
01/09/1997 | CA2224680A1 A power spectral density estimation method and apparatus |
01/07/1997 | US5592548 System and method for avoiding false convergence in the presence of tones in a time-domain echo cancellation process |
01/07/1997 | US5592340 Communication channel with adaptive analog transversal equalizer |
01/07/1997 | CA2047164C Adaptive equalizer with channel impulse response estimation |
01/02/1997 | EP0751653A2 FIR equalizer for data signals |
01/02/1997 | EP0751619A1 Noise cancelling method and noise canceller |
01/02/1997 | EP0751491A2 Method of reducing noise in speech signal |
01/01/1997 | CN1139501A Method for determining location of echo in an echo cancellar |
01/01/1997 | CN1033734C Adaptive multistandard video comb filter |
12/31/1996 | US5590204 Device for reproducing 2-channel sound field and method therefor |
12/31/1996 | US5590160 Symbol and frame synchronization in both a TDMA system and a CDMA |
12/31/1996 | US5590154 Equalizer circuit and a method for equalizing a continuous signal |
12/31/1996 | US5590121 Method and apparatus for adaptive filtering |
12/31/1996 | CA2104338C Adaptive equalizer method and apparatus |
12/27/1996 | EP0750395A1 Adaptive filter and method for implementing echo cancellation |
12/25/1996 | CN1138795A Signal processing apparatus and method |
12/25/1996 | CN1138793A Equalization apparatus with effective coefficient updating operation |
12/25/1996 | CN1138787A Modem receiver pre-emphasis |
12/20/1996 | CA2177625A1 Adaptive filter and method for implementing echo cancellation |
12/18/1996 | EP0748551A1 Combating signal interference in digital transmission |
12/18/1996 | EP0627136B1 Method and apparatus for ghost cancelling and/or equalizing |
12/18/1996 | CN1138183A Method of adapting noise masking level in analysis-by-synthesis speech coder employing short-team perceptual weichting filter |
12/17/1996 | US5586189 Active adaptive control system with spectral leak |
12/17/1996 | US5586100 Transversal filter and method for cancelling intersymbol interference |
12/17/1996 | US5586068 Adaptive electronic filter |
12/17/1996 | US5585861 Luminance and chrominance signals separating filter adaptive to movement of image |
12/17/1996 | US5585587 Acoustic image localization apparatus for distributing tone color groups throughout sound field |
12/17/1996 | CA2052252C Technique for adjusting signal dispersion cancellation apparatus in communications systems |
12/11/1996 | EP0748124A2 Signal processing apparatus and method |
12/11/1996 | EP0746290A1 Improved method and system for on-line system identification |
12/08/1996 | CA2170469A1 Signal processing apparatus and method |
12/05/1996 | WO1996038933A1 System and method for avoiding false convergence in the presence of tones in a time-domain echo cancellation process |
12/04/1996 | EP0746134A2 Acoustic echo canceler |
12/04/1996 | EP0746133A2 Multistage echo canceller including time variation compensation |
12/04/1996 | EP0746097A1 Method and circuit arrangement for processing a signal containing interference |
12/03/1996 | US5581619 Vehicle internal noise reduction system and method |
12/03/1996 | US5581581 Viterbi equalizer |
12/03/1996 | US5581495 Adaptive signal processing array with unconstrained pole-zero rejection of coherent and non-coherent interfering signals |
12/03/1996 | US5581494 Adaptive discrete-time transversal filter |
11/26/1996 | US5579340 Waveform equalizer |
11/26/1996 | CA2069993C Adaptive maximum likelihood sequence estimator using channel estimators of respective order of impulse response |
11/20/1996 | EP0743634A1 Method of adapting the noise masking level in an analysis-by-synthesis speech coder employing a short-term perceptual weighting filter |
11/20/1996 | EP0742971A1 Adaptative feedforward and feedback control system |
11/19/1996 | US5577127 System for rapid convergence of an adaptive filter in the generation of a time variant signal for cancellation of a primary signal |
11/19/1996 | US5576983 Arithmetic circuit for adaptive equalizer of LMS algorithm of reduced amount of operation |
11/13/1996 | CN1135692A Echo-eliminating device |
11/12/1996 | CA2079292C Fast response matched filter receiver with decision feedback equalizer |
11/07/1996 | WO1996035266A1 Adaptive sub-band filtering |
11/07/1996 | WO1996035259A1 Method of modelling the spectrum of a signal and apparatus for realizing the method |
11/06/1996 | EP0741477A1 Digital phase filter |
11/06/1996 | CN1135129A Timing recovery in network-synchronized modem |
11/05/1996 | US5572545 Process for starting up a modem containing a variable-phase echo canceller and modem in which such a process is implemented |
11/05/1996 | US5572262 Receiver based methods and devices for combating co-channel NTSC interference in digital transmission |
10/31/1996 | DE19615257A1 DS-CDMA rate receiver with subchip resolution |
10/29/1996 | CA2156001A1 Initial phase-loading circuit for a fractionally-spaced linear equalizer |
10/25/1996 | CA2173885A1 Cdma rake receiver with sub-chip resolution |
10/22/1996 | US5568558 Adaptive noise cancellation device |
10/22/1996 | US5568519 Method and apparatus for separating a signal mix |
10/22/1996 | US5568411 Processing system |
10/17/1996 | WO1996032776A2 Signal amplification system with automatic equalizer |
10/16/1996 | EP0738049A1 Spread spectrum signal receiver using an autoadaptive detection threshold |
10/16/1996 | EP0651899A4 Adaptive canceller filter module. |
10/16/1996 | CN1133655A A variable block size adaptation algorithm for noise-robust acoustic echo cancellation |
10/15/1996 | US5566167 Subband echo canceler |
10/09/1996 | EP0736995A2 Improvements in or relating to speech recognition |
10/09/1996 | EP0736235A1 Method for determining the location of echo in an echo cancellar |
10/09/1996 | CN1132969A Rapid-update adaptive channel-equalization filtering for digital radio receivers, such as HDTV receivers |
10/08/1996 | US5563954 Microphone apparatus |
10/08/1996 | US5563911 Equalizer for data receiver apparatus |
10/08/1996 | US5563888 Carrier offset tracking for a receiver using channel impulse response |
10/08/1996 | US5563817 Adaptive canceller filter module |
10/08/1996 | US5563816 High-resolution digital filter |
10/02/1996 | EP0735716A2 Timing recovery in a network-synchronized modem |
10/02/1996 | EP0735674A2 Method and apparatus for adaptive filtering |
10/02/1996 | EP0484383B1 Digital filter and method of design |
10/01/1996 | US5561424 Data converter with minimum phase fir filter and method for calculating filter coefficients |
10/01/1996 | CA2171778A1 Method and apparatus for adaptive filtering |
10/01/1996 | CA2051147C Echo canceller using impulse response estimating method |
09/25/1996 | EP0734133A1 Equalisation system for multicarrier receiver |
09/18/1996 | EP0732838A2 Acoustic echo cancellor |
09/18/1996 | EP0732833A1 Carrier recovery circuit |
09/18/1996 | EP0732831A2 Decision-feedback equalizer with alarm ciruit |
09/18/1996 | EP0667066B1 Echo compensation device |
09/17/1996 | US5557646 Multipath eliminating filter |
09/11/1996 | EP0731593A2 Echo removing apparatus |
09/11/1996 | EP0731567A2 Maximum likelihood sequence estimator and maximum likelihood sequence estimating method |
09/11/1996 | CN1130837A Blind multipath correction for digital communication channel |
09/11/1996 | CN1130830A Hybrid equalizer arrangement for use in data communication equipment |
09/10/1996 | US5555200 Charge domain bit-serial multiplying digital-analog converter |
09/10/1996 | CA2171406A1 Maximum likelihood sequence estimator and maximum likelihood sequence estimating method |
09/06/1996 | WO1996021304A3 Combating signal interference in digital transmission |
09/04/1996 | EP0730262A2 Noise cancelling device capable of achieving a reduced convergence time and a reduced residual error after convergence |
09/04/1996 | CN1130330A Composite wave filter |