| Patents for H03H 21 - Adaptive networks (3,855) |
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| 10/23/1991 | EP0453282A2 Digital subband encoding apparatus |
| 10/23/1991 | EP0453201A1 Control for adaptive equalizer |
| 10/22/1991 | US5060088 Adaptive equalization for recording systems using partial-response signaling |
| 10/22/1991 | CA1291222C Adaptive-filter single-bit digital encoder and decoder and adaptation control circuit responsive to bit-stream loading |
| 10/17/1991 | WO1991015814A1 Process and circuit arrangement for correcting the frequency response of a signal and/or affecting interference in a regulating circuit |
| 10/15/1991 | US5058130 Jitter equalizer for digital transmission filter |
| 10/15/1991 | US5058047 System and method for providing digital filter coefficients |
| 10/09/1991 | CN1014288B Adaptive digital filter including non-recursive part and recursive part |
| 10/02/1991 | EP0448758A1 Method for the determination of FIR filter coefficients in equalizers |
| 10/02/1991 | EP0448742A1 Adaptive recursive digital filter |
| 09/25/1991 | EP0448121A2 Electronic noise attenuation method and apparatus for use in effecting such method |
| 09/24/1991 | US5051942 Method and apparatus for calculating filter factors |
| 09/18/1991 | EP0446917A2 Circuit for controlling tap gains at rapid speed in an adaptive filter |
| 09/17/1991 | US5050119 Optimized sparse transversal filter |
| 09/17/1991 | CA1289198C Line equalizer |
| 09/10/1991 | US5048055 Multi-data rate selectable equalizer |
| 09/10/1991 | US5047859 Method and apparatus for communication channel identification and signal restoration |
| 09/10/1991 | US5047838 Adaptive comb filter |
| 09/10/1991 | CA1288863C Wideband adaptive array using the chirp transform |
| 09/04/1991 | EP0445057A2 Multi-data rate selectable equalizer |
| 09/03/1991 | US5045945 Method of adaptive ghost cancellation |
| 08/28/1991 | EP0443115A1 Wave digital filter composed of memories and n-port adaptors |
| 08/27/1991 | US5043814 Adaptive ghost cancellation circuit |
| 08/27/1991 | US5043686 Adaptive power line noise filter and switch for audio reproduction equipment |
| 08/21/1991 | EP0396666A4 Selective active cancellation system for repetitive phenomena |
| 08/10/1991 | WO1991012579A1 Digital virtual earth active cancellation system |
| 07/23/1991 | CA1286731C Digital adaptive filter for a high throughput digital adaptive processor |
| 07/09/1991 | US5031195 Fully adaptive modem receiver using whitening matched filtering |
| 07/09/1991 | US5031194 Wideband digital equalizers for subscriber loops |
| 07/09/1991 | CA1285999C Analog/digital adaptive line enhancer |
| 07/02/1991 | US5029118 Periodic noise canceling system and method |
| 06/26/1991 | EP0434209A2 Video comb filter |
| 06/25/1991 | US5027369 Rapid convergence decision feedback equalizer |
| 06/25/1991 | US5027194 Method for reducing noise and cross-color interference in television signals, and apparatus for performing the method |
| 06/25/1991 | US5027123 Adaptive interference canceller |
| 06/18/1991 | CA1285032C I-q channel adaptive line enhancer |
| 06/05/1991 | EP0429510A1 Signal processing means for sensing a periodic signal in the presence of another interfering periodic noise |
| 06/04/1991 | US5022082 Active acoustic attenuation system with reduced convergence time |
| 06/04/1991 | US5021756 Transversal and recursive filters useable in a diplexer |
| 05/29/1991 | EP0429258A2 Video comb filter |
| 05/29/1991 | CN1051835A Adaptive multistandard video comb filter |
| 05/22/1991 | EP0428199A2 Receiver for digital communication system with channel estimator |
| 05/22/1991 | EP0427951A2 System to generate switching criteria and equalize adaptively in data spectrum |
| 05/21/1991 | US5018088 Adaptive locally-optimum detection signal processor and processing methods |
| 05/18/1991 | CA2029555A1 Adaptive multistandard video comb filter |
| 05/18/1991 | CA2029554A1 Adaptive multistandard video comb filter |
| 05/14/1991 | US5016280 Electronic filters, hearing aids and methods |
| 05/14/1991 | US5016092 Control circuitry for an adaptive multistandard video comb filter |
| 05/07/1991 | US5014232 Adaptive digital filter having non-recursive and recursive filter elements |
| 05/02/1991 | EP0424989A2 Adaptive comb filter |
| 04/30/1991 | US5012245 Integral switched capacitor FIR filter/digital-to-analog converter for sigma-delta encoded digital audio |
| 04/24/1991 | EP0207085B1 Signal to noise ratio enhancement using baseband signals in an fm television system |
| 04/17/1991 | WO1991006148A1 In-wire selective cancellation system |
| 04/17/1991 | EP0422809A2 Adaptive apparatus |
| 04/17/1991 | EP0422796A2 An adaptive FIR filter having restricted coefficient ranges |
| 04/12/1991 | CA2027236A1 Adaptive fir filter having restricted coefficient ranges |
| 04/11/1991 | DE4030338A1 Dynamic, digital audio filter - has input audio signal receiver(s) and two delays for output delays with first bit width |
| 04/10/1991 | EP0421962A1 A method and device for performing an approximate arithmetical division |
| 04/10/1991 | EP0421651A2 Integral switched capacitor for filter/digital to analog converter for sigma-delta encoded digital audio |
| 04/10/1991 | EP0421526A2 Adaptive ghost cancellation circuit |
| 04/09/1991 | US5007044 Digital adaptive filter and method of convergence therein |
| 04/09/1991 | US5007007 Anti-lock brake control system |
| 04/05/1991 | WO1991005305A1 A method and device for performing an approximate arithmetical division |
| 04/02/1991 | US5005074 Adaptive multistandard video comb filter |
| 03/27/1991 | EP0419225A2 Transversal type automatic equalizer with tap coefficient protection |
| 03/19/1991 | US5001701 Subband echo canceler including real time allocation among the subbands |
| 03/19/1991 | US5001661 Data processor with combined adaptive LMS and general multiplication functions |
| 03/19/1991 | CA1281783C Method and apparatus for equalization of data transmission system |
| 03/06/1991 | EP0415677A2 Hearing aid having compensation for acoustic feedback |
| 03/06/1991 | EP0414830A1 Adaptive pal or nstc comb filter |
| 03/05/1991 | US4998241 Echo canceller |
| 02/21/1991 | WO1991002407A1 Wideband digital equalizers for subscriber loops |
| 02/20/1991 | EP0413460A2 Ghost cancelling system and method of controlling such a system |
| 02/19/1991 | US4994906 Digital luminance/chrominance separation apparatus |
| 02/18/1991 | CA2022765A1 Ghost cancelling system and control method thereof |
| 02/13/1991 | EP0412790A2 Adaptive comb filters and methods of separating video signal components |
| 02/13/1991 | EP0412691A2 Subband echo conceler including real time allocation among the subbands |
| 02/06/1991 | EP0411741A1 Digital equalizer and FM receiver having same |
| 01/29/1991 | US4989170 Hybrid stochastic gradient for convergence of adaptive filter |
| 01/26/1991 | WO1991001526A1 Digital filter and method of design |
| 01/08/1991 | CA1278751C Active attenuation system with increased dynamic range |
| 01/02/1991 | EP0405679A1 Autoadaptive equalization device for duobinary coded digital samples |
| 12/27/1990 | EP0404237A2 Method and device for noise supression of a digital signal |
| 12/19/1990 | EP0402519A1 Method and arrangement for treating the dynamic range of an adaptive recursive network for processing time-discrete signals |
| 12/19/1990 | EP0402510A1 Method and circuit arrangement for obtaining a continuous change of the transfer function of an adaptive recursive network for processing time-discrete signals |
| 12/18/1990 | US4979023 Adaptive comb filter for artifact-free decoding |
| 12/13/1990 | WO1990015495A1 Process for equalizing signals by means of test sequences |
| 12/06/1990 | DE3901614A1 Radarempfaenger, insbesondere fuer ein radar mit einer antenne, deren buendel durch berechnung erzeugt wird Radarempfaenger, in particular for a radar with an antenna, which is generated bundle calculation |
| 12/05/1990 | EP0400850A2 Generating coefficients for digital filters |
| 12/05/1990 | EP0400001A1 Multipath reduction system |
| 11/28/1990 | EP0399968A1 A method and arrangement for avoiding erroneous echoelimination and/or for avoiding erroneous equalization in a telecommunication system |
| 11/28/1990 | EP0399386A2 Adaptive analysis apparatus |
| 11/28/1990 | EP0399382A2 Multi-channel adaptive canceler |
| 11/27/1990 | US4974065 For a composite digitized color television signal |
| 11/25/1990 | CA2015253A1 Adaptive analysis apparatus |
| 11/22/1990 | EP0398441A1 Adaptive discrete-time transversal filter |
| 11/22/1990 | EP0397912A1 Method and network arrangement for obtaining the output signals gradient of a given network for processing time discrete signals in relation to their network parameters |
| 11/14/1990 | EP0396666A1 Selective active cancellation system for repetitive phenomena. |
| 11/01/1990 | WO1990013185A1 A method and arrangement for avoiding erroneous echo-elimination and/or equalization in a telecommunication system |
| 10/23/1990 | US4965834 Multi-stage noise-reducing system |