| Patents for H03H 21 - Adaptive networks (3,855) |
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| 02/07/1989 | US4803648 Echo canceller using an adaptive finite impulse response filter |
| 02/01/1989 | EP0301627A1 Digital echo canceller |
| 01/26/1989 | WO1989000722A1 Adaptive noise cancellation in a closed loop control system |
| 01/25/1989 | EP0300880A1 Adaptive predictor |
| 01/24/1989 | US4800572 Adapter frequency range equalizer for digital radio relay systems |
| 01/18/1989 | EP0114855B1 Adaptive filter update normalization |
| 01/17/1989 | US4799180 Adaptive automatic equalizer |
| 01/10/1989 | US4797898 Method and apparatus for equalization of data transmission system |
| 01/10/1989 | US4797807 Multiple channel fast orthogonalization network |
| 01/03/1989 | US4796213 Method of filtering signals for a controller of a turbo compressor |
| 01/03/1989 | CA1248219A1 Signals to noise ratio enhancement using baseband signals in an fm television system |
| 12/20/1988 | US4792915 Non linear adaptive filters |
| 12/13/1988 | US4791390 MSE variable step adaptive filter |
| 12/06/1988 | US4789952 Method and apparatus for digital compensation and digital equalization |
| 12/06/1988 | CA1246163A1 Adaptive equalizer |
| 12/01/1988 | WO1988009537A1 A fast median filter |
| 11/29/1988 | US4788652 I-Q channel adaptive line enhancer |
| 11/23/1988 | EP0292189A2 Updating cannonic signed digit filter coefficients |
| 11/22/1988 | US4787065 Data processing apparatus providing cyclic addressing of a data store in selectively opposite directions |
| 11/22/1988 | US4786884 Adaptive transversal filter |
| 11/08/1988 | US4783839 Image filtering apparatus and method |
| 11/02/1988 | EP0288577A1 Echo canceller with short processing delay and decreased multiplication number and method for controlling an echo signal. |
| 11/01/1988 | US4782459 Adaptive recognizing device |
| 10/06/1988 | WO1988007790A1 Digital adaptive filter |
| 10/06/1988 | WO1988007789A1 Analog/digital adaptive line enhancer |
| 10/06/1988 | WO1988007788A1 I-q channel adaptive line enhancer |
| 09/20/1988 | US4773034 Adaptive equalizer utilizing a plurality of multiplier-accumulator devices |
| 09/13/1988 | US4771396 Digital filters |
| 09/13/1988 | CA1242003A1 Inverse control system |
| 09/06/1988 | US4769847 Noise canceling apparatus |
| 08/30/1988 | CA1241382A1 Adaptive digital filter |
| 08/16/1988 | CA1240775A1 Adaptive filter for aircraft navigation receiver |
| 08/10/1988 | EP0277231A1 Distributed kalman filter |
| 08/10/1988 | CN85108684B Signal to noise ration enhancement using baseband signal in an fm television system |
| 08/03/1988 | EP0276511A1 Adaptive time-descrete filter for forming a cancelling signal from synchronous data symbols |
| 08/03/1988 | EP0135512B1 Improved method and means of determining coefficients for linear predictive coding |
| 07/26/1988 | US4760540 Adaptive interference cancelling system and method |
| 07/20/1988 | EP0274850A2 Adaptive digital filters and echo cancelers |
| 07/19/1988 | CA1239480A1 Wideband adaptive prediction |
| 07/06/1988 | EP0273581A2 A method and apparatus for digital compensation and digital equalization |
| 07/05/1988 | US4755984 Echo canceller for bidirectional digital transmission |
| 06/29/1988 | EP0272714A1 Adjustable echo canceller |
| 06/28/1988 | US4754419 Adaptive digital filter |
| 06/21/1988 | US4752969 Anti-multipath signal processor |
| 06/21/1988 | US4752903 Adaptive digital filter for eliminating howling |
| 06/07/1988 | CA1237786A1 Adaptive equalizer |
| 06/02/1988 | WO1988004116A1 Method and apparatus for equalization of data transmission system |
| 06/01/1988 | EP0268842A1 Adaptive passband equalizer for digital radio relay link systems |
| 05/24/1988 | US4747068 Adaptive filter |
| 05/24/1988 | US4746902 Arrangement for compensating for non-linear distortion in an input signal to be digitized and an echo cancelling system comprising such a arrangement |
| 05/18/1988 | EP0121557B1 Adaptive filter including controlled tap gain coefficient drift |
| 05/10/1988 | US4743871 Adaptive filter |
| 05/05/1988 | WO1988003341A1 Echo canceller with short processing delay and decreased multiplication number |
| 04/27/1988 | EP0265097A2 Active attenuation system with increased dynamic activity |
| 04/27/1988 | EP0163685B1 Apparatus for correcting frequency-dependent attenuation of the transmitting medium in signal transmission |
| 04/21/1988 | WO1988002954A1 Circuitry for converting measurement signals disturbed by a disturbance function into undisturbed signals |
| 04/05/1988 | US4736431 Active attenuation system with increased dynamic range |
| 03/15/1988 | US4731834 Adaptive filter including signal path compensation |
| 02/25/1988 | WO1988001409A1 Distributed kalman filter |
| 02/16/1988 | US4726036 Digital adaptive filter for a high throughput digital adaptive processor |
| 02/16/1988 | US4726035 Analog/digital adaptive line enhancer |
| 01/27/1988 | EP0254029A2 Process for filtering a noisy signal |
| 01/20/1988 | EP0253583A2 Adaptive digital filter |
| 01/19/1988 | CA1231757A1 Equipment for locating a signal reflection point in a transmission line |
| 01/12/1988 | CA1231397A1 Waveform shaping apparatus |
| 01/05/1988 | US4718073 Demodulator for facsimile equipment |
| 01/05/1988 | US4717951 Adaptive digital filter |
| 12/23/1987 | EP0250048A1 Frequency-domain block-adaptive digital filter |
| 11/25/1987 | EP0246425A1 Apparatus for cancelling echoes in a duplex digital transmission system |
| 11/24/1987 | US4709395 Method and apparatus for minimizing errors in the digital processing of electrical signals |
| 11/10/1987 | US4706188 Method and apparatus for reading samples of a time-dependent signal in a data processing system |
| 10/27/1987 | CA1228669A1 Adaptive filtering system |
| 10/20/1987 | US4701873 Method and a circuit arrangement for digital signal processing utilizing adaptive transversal filter techniques |
| 10/14/1987 | EP0241069A1 Adaptive transversal filter |
| 10/13/1987 | CA1228144A1 Radar velocity sensor |
| 10/07/1987 | EP0240056A1 Adaptive filter for producing and echo cancellation signal in a transceiver system for duplex digital communication through one single pair of conductors |
| 10/07/1987 | EP0240055A1 Arrangement for compensating for non-linear distortion in an input signal to be digitized and an echo cancelling system comprising such an arrangement |
| 10/01/1987 | DE3610383A1 Adaptive decision feedback equaliser |
| 09/15/1987 | US4694451 Adaptive digital filter |
| 09/15/1987 | US4694415 Adaptive digital filter for analog input signals |
| 09/15/1987 | US4694298 Adaptive, fault-tolerant narrowband filterbank |
| 09/08/1987 | CA1226630A1 Multiple frequency adaptive noise filter for removing interference signals from a frequency band having a desired signal |
| 08/26/1987 | EP0233713A2 Adaptive filter |
| 08/12/1987 | EP0231854A1 Echo compensator |
| 07/28/1987 | US4683590 Inverse control system |
| 07/28/1987 | CA1224849A1 Communication receiving unit for the suppression of noise and interference signals |
| 07/21/1987 | US4682230 Adaptive median filter system |
| 07/07/1987 | US4679001 For suppressing energy at time varying frequencies |
| 06/16/1987 | US4673982 Multiple frequency adaptive noise filter for removing interference signals from a frequency band having a desired signal |
| 05/20/1987 | EP0222428A1 Adaptive filter |
| 05/20/1987 | CN86106494A Adaptive resistance-trap filter |
| 05/06/1987 | EP0220563A1 Adaptive noise suppressor |
| 04/28/1987 | US4661923 Large bandwidth SAW adaptive processor arrangement |
| 04/28/1987 | US4661816 Adaptive radar signal processor |
| 04/28/1987 | EP0207085A4 Signal to noise ratio enhancement using baseband signals in an fm television system. |
| 04/22/1987 | EP0218861A2 Adaptive stop-notch filter |
| 04/21/1987 | CA1220823A1 Adaptive filter update gain normalization |
| 04/14/1987 | US4658426 Adaptive noise suppressor |
| 04/14/1987 | US4658255 Adaptive radar signal processing apparatus |
| 03/31/1987 | US4654863 Wideband adaptive prediction |