Patents for H03H 21 - Adaptive networks (3,855) |
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08/30/1995 | EP0669598A1 Filter for reducing noise and exalting image digital signals edges according to fuzzy logic |
08/29/1995 | US5446787 Method for avoiding self-oscillation in conjunction with echo cancellation |
08/23/1995 | EP0668703A2 Video comb filter |
08/22/1995 | US5444739 Equalizer for data receiver apparatus |
08/22/1995 | US5444443 Sound source determining system |
08/16/1995 | EP0667698A2 Transmission of data signals over telephone lines |
08/16/1995 | EP0667687A1 Echo canceller |
08/16/1995 | EP0667080A1 Apparatus and method for controlling an echo canceler |
08/16/1995 | EP0667066A1 Echo compensation device. |
08/15/1995 | US5442543 Neural filter architecture for overcoming noise interference in a non-linear, adaptive manner |
08/08/1995 | US5440641 Active noise cancellation system |
08/08/1995 | US5440503 Digital filtering circuit operable as a three-stage moving average filter |
08/03/1995 | WO1995020841A1 Adaptative feedforward and feedback control system |
07/26/1995 | EP0664187A1 Grinding tape and method of manufacturing the same |
07/19/1995 | EP0663085A1 Method and apparatus for reduced-complexity viterbi-type sequence detectors |
07/18/1995 | US5434912 Audio processing system for point-to-point and multipoint teleconferencing |
07/12/1995 | EP0560945A4 Adaptive decision feedback equalizer apparatus for processing information stored on digital storage media |
07/11/1995 | US5432818 Method and apparatus of joint adaptive channel encoding, adaptive system filtering, and maximum likelihood sequence estimation process by means of an unknown data training |
07/11/1995 | US5432794 Automatic Equalizer |
07/11/1995 | US5432725 Self-adapting filter |
07/06/1995 | WO1995018523A1 Method and apparatus for encoding multibit coded digital sound through subtracting adaptive dither, inserting buried channel bits and filtering, and encoding and decoding apparatus for use with this method |
07/05/1995 | EP0661833A1 Baseband amplitude/frequency characteristic estimator |
07/05/1995 | EP0661832A2 Method of and apparatus for identifying a system with adaptive filter |
07/05/1995 | EP0661807A2 Active adaptive control system with spectral leak |
07/04/1995 | US5430661 Adaptive decision feedback equalizer apparatus for processing information stored on digital storage media |
07/01/1995 | CA2139218A1 Multiphase signal amplitude-frequency characteristic basebaud estimator |
06/29/1995 | WO1995017784A1 Method for determining the location of echo in an echo cancellar |
06/28/1995 | EP0660543A2 System and method of adaptive maximum likelihood sequence estimation |
06/28/1995 | EP0660321A2 Reproduced waveform equalization circuit |
06/28/1995 | EP0659312A1 Decision feedback equalizer method and apparatus |
06/27/1995 | US5428681 Apparatus and method for reducing the risk of undesirable parameter drift of an adaptive filter used for echo cancellation |
06/27/1995 | US5428562 For use in echo cancellation |
06/22/1995 | DE4444583A1 Selecting physical characteristic from parameter data for digital filter |
06/20/1995 | US5426597 Adaptive infinite impulse response (IIR) filter system |
06/14/1995 | DE4434723C1 Adaptive network for digital transmission system |
06/13/1995 | US5425105 Multiple adaptive filter active noise canceller |
06/07/1995 | EP0656695A1 Method for the adaptive control of a digital echo canceller in a telecommunication system |
06/06/1995 | US5422606 Automatic equalizer |
06/06/1995 | CA2023178C Wideband digital equalizers for subscriber loops |
06/03/1995 | CA2137130A1 Method for the adaptive control of a digital echo canceller in a telecommunication system |
06/01/1995 | DE3152560C2 Method and device for processing a measurement signal subject to fluctuations |
05/31/1995 | EP0655731A2 Noise suppressor available in pre-processing and/or post-processing of a speech signal |
05/31/1995 | EP0655158A1 Method and apparatus for attenuating an unwanted signal in a mix of signals |
05/31/1995 | EP0655151A1 Multiple interacting dve algorithm |
05/30/1995 | US5419198 Electronic signal enhancement and separation for machinery diagnostics |
05/30/1995 | CA2055831C Adaptive filter and a method of preventing divergent behavior of the adaptive filter |
05/24/1995 | EP0654901A1 System for the rapid convergence of an adaptive filter in the generation of a time variant signal for cancellation of a primary signal |
05/23/1995 | US5418817 Adaptive equalization system and method |
05/23/1995 | US5418816 Automatic equalizer |
05/23/1995 | CA1335674C Electronic filters, signal conversion apparatus, hearing aids and methods |
05/16/1995 | US5416846 Noise control system and method |
05/16/1995 | US5416844 Apparatus for reducing noise in space applicable to vehicle passenger compartment |
05/16/1995 | US5416799 Dynamically adaptive equalizer system and method |
05/11/1995 | WO1995012919A1 A variable block size adaptation algorithm for noise-robust acoustic echo cancellation |
05/10/1995 | EP0651899A1 Adaptive canceller filter module |
05/09/1995 | US5414732 Adaptive equalizer and method for operation at high symbol rates |
05/09/1995 | US5414571 Adaptive equalization circuit for magnetic recording apparatus having high error immunity |
05/09/1995 | CA2013071C Multi-channel adaptive canceler |
05/02/1995 | US5412735 Adaptive noise reduction circuit for a sound reproduction system |
05/02/1995 | US5412434 Luminance and chrominance signals separating filter adaptive to movement of image |
04/27/1995 | DE4292034C2 Method for optimising a refresh coefficient for an adaptive filter |
04/26/1995 | EP0650281A1 Adaptive precoding and preemphasis for trellis coded modulation systems |
04/26/1995 | EP0650127A2 Digital signal processing circuit |
04/26/1995 | EP0649589A1 Adaptive audio systems and sound reproduction systems |
04/26/1995 | EP0649558A1 Transmission system comprising at least a coder |
04/26/1995 | EP0649557A1 Transmission system comprising at least a coder |
04/23/1995 | CA2130538A1 Method and apparatus for adaptively providing precoding and preemphasis conditioning to signal data for transfer over a communication channel |
04/19/1995 | EP0649235A1 Method and apparatus for channel equalization |
04/19/1995 | EP0648385A1 Signal processing |
04/18/1995 | US5408532 Vehicle internal noise reduction system |
04/18/1995 | US5408424 Optimal filtering by recurrent neural networks |
04/13/1995 | DE4334040A1 Circuit arrangement for the automatic correction of the transfer characteristics of electrodynamic sound transmitters without additional mechanical or acoustic sensor |
04/04/1995 | US5404322 Digital filter and method of design |
03/30/1995 | WO1995008890A1 Interference suppression in cdma systems |
03/30/1995 | DE4332804A1 Adaptive correction circuit for electroacoustic sound transmitters |
03/28/1995 | US5402520 Neural network method and apparatus for retrieving signals embedded in noise and analyzing the retrieved signals |
03/28/1995 | US5402496 Auditory prosthesis, noise suppression apparatus and feedback suppression apparatus having focused adaptive filtering |
03/21/1995 | US5400409 Noise-reduction method for noise-affected voice channels |
03/15/1995 | EP0643495A1 Modem with optimum gain echo canceller adaptation |
03/09/1995 | WO1995006986A1 Fast converging adaptive filter |
03/09/1995 | DE4431349A1 Adaptive filtering of digital image signals |
03/08/1995 | EP0642032A2 Sound source determining system |
03/07/1995 | US5396554 Multi-channel echo canceling method and apparatus |
03/07/1995 | US5396519 Method and apparatus for adaptively providing precoding and preemphasis conditioning to signal data for transfer over a communication channel |
03/01/1995 | EP0641110A1 Combined equaliser and demultiplexer |
02/28/1995 | US5394193 Pattern-adaptive digital comb filter for separation of a luminance and a color signal |
02/28/1995 | US5394110 Demodulation system having adaptive matched filter and decision feedback equalizer |
02/22/1995 | EP0639892A1 Digital filter device |
02/16/1995 | WO1995005047A1 An audio processing system for teleconferencing |
02/14/1995 | US5390364 Least-mean squares adaptive digital filter havings variable size loop bandwidth |
02/14/1995 | US5390133 Image processor for target detection and tracking |
02/14/1995 | CA2046250C Hybrid circuit having a two-wire/four-wire converting function |
02/14/1995 | CA2033677C Active acoustic attenuation system with reduced convergence time |
02/07/1995 | US5388123 Data receiving system |
02/07/1995 | US5388080 Non-integer sample delay active noise canceller |
02/07/1995 | CA1334284C Signal processing means for sensing a periodic signal in the presence of another interfering periodic noise |
02/01/1995 | EP0636291A1 Coordinated coding for digital transmission |
01/31/1995 | US5386477 Active acoustic control system matching model reference |
01/31/1995 | US5386472 Active noise control system |
01/25/1995 | EP0635178A1 A method for avoiding self-oscillation in conjunction with echo cancellation |