| Patents for H03H 21 - Adaptive networks (3,855) |
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| 07/22/1997 | US5650954 Frequency and time domain adaptive filtration in a sampled communication channel |
| 07/15/1997 | US5649065 Optimal filtering by neural networks with range extenders and/or reducers |
| 07/15/1997 | US5649054 Method and apparatus for coding digital sound by subtracting adaptive dither and inserting buried channel bits and an apparatus for decoding such encoding digital sound |
| 07/15/1997 | US5649011 Method for the adaptive control of a digital echo canceller in a telecommunication system |
| 07/15/1997 | US5648988 Communication system including a digital roll-off filter |
| 07/15/1997 | US5648987 Rapid-update adaptive channel-equalization filtering for digital radio receivers, such as HDTV receivers |
| 07/15/1997 | US5648983 CDMA rake receiver with sub-chip resolution |
| 07/10/1997 | WO1997024814A1 Channel training of multi-channel receiver system |
| 07/10/1997 | WO1997024805A1 Resolution enhancement of fixed point digital filters |
| 07/10/1997 | WO1997024804A1 Gauging convergence of adaptive filters |
| 07/10/1997 | WO1997024802A1 Impulse noise effect reduction |
| 07/10/1997 | CA2240676A1 Channel training of multi-channel receiver system |
| 07/09/1997 | CN1154016A Method and apparatus for blind separation of delayed and filtered sources |
| 07/08/1997 | US5646957 Burst update for an adaptive equalizer |
| 07/08/1997 | US5646950 Matched spectral null codes for partial response channels |
| 07/03/1997 | WO1997018442A3 Method for adaptive kalman filtering in dynamic systems |
| 07/02/1997 | EP0782305A2 Biderectional DFE |
| 07/02/1997 | EP0782262A2 Update block for an adaptive equalizer filter configuration capable of processing complex-valued coefficient signals |
| 07/02/1997 | EP0782261A2 Update block for an adaptive equalizer filter configuration |
| 07/02/1997 | EP0782260A2 Equalizer filter configuration for processing real-valued and complex-valued signal samples |
| 07/02/1997 | EP0781469A1 Filter |
| 07/01/1997 | US5644641 Noise cancelling device capable of achieving a reduced convergence time and a reduced residual error after convergence |
| 07/01/1997 | US5644635 Method of and device for echo cancellation |
| 07/01/1997 | US5644603 Maximum-likelihood sequence estimator with variable number of states |
| 07/01/1997 | US5644596 Method and apparatus for frequency selective adaptive filtering |
| 07/01/1997 | US5644595 Method and apparatus for an adaptive three tap transversal equalizer for partial-response signaling |
| 07/01/1997 | US5644307 Modulation method, recording method, reproducing method, recording and reproducing apparatus, recording and reproducing method, and reproducing apparatus |
| 06/25/1997 | CN1152830A Noise controllable mobile telephone |
| 06/24/1997 | US5642381 Signal equalizer |
| 06/18/1997 | EP0779709A2 Method and apparatus for blind separation of delayed and filtered sources |
| 06/17/1997 | US5640418 Equalizer, reception system having an equalizer, data conversion method and apparatus thereof |
| 06/10/1997 | US5638439 Adaptive filter and echo canceller |
| 06/10/1997 | US5638409 Data receiving device for reproducing a received symbol from a received data signal |
| 06/10/1997 | US5638311 Filter coefficient estimation apparatus |
| 06/05/1997 | CA2188077A1 Systems and methods of digital wireless communication using equalization |
| 06/03/1997 | US5636153 Digital signal processing circuit |
| 06/03/1997 | US5636151 Adaptive filter capable of removing a residual echo at a rapid speed |
| 06/03/1997 | US5635864 Comparator circuit |
| 05/29/1997 | WO1997019448A1 Audio noise reduction system implemented through digital signal processing |
| 05/29/1997 | WO1997019447A1 Dsp decoder for decoding analog sr encoded audio signals |
| 05/28/1997 | CN1150722A Method for processing signal in CSD filter and circuit suitable for method |
| 05/28/1997 | CN1150721A Tab coefficient updating device of finite impulse-responding adaptive digital filter |
| 05/27/1997 | US5633936 Method and apparatus for detecting a near-end speech signal |
| 05/22/1997 | WO1997018442A2 Method for adaptive kalman filtering in dynamic systems |
| 05/21/1997 | EP0688476B1 Digital time signal filtering method and device for transmission channel echo correction |
| 05/20/1997 | US5631899 Acoustic echo canceler |
| 05/20/1997 | US5631877 Narrowband signal revealer |
| 05/09/1997 | WO1997016942A1 Method and apparatus for reduction of unwanted feedback |
| 05/07/1997 | EP0771515A2 Signal amplification system with automatic equalizer |
| 05/06/1997 | US5627899 Compensating filters |
| 05/06/1997 | US5627897 Acoustic attenuation device with active double wall |
| 05/06/1997 | US5627885 System for, and method of, transmitting and receiving through telephone lines signals representing data |
| 05/06/1997 | US5627799 Beamformer using coefficient restrained adaptive filters for detecting interference signals |
| 05/02/1997 | EP0771084A1 Time diversity transmission-reception system |
| 05/02/1997 | EP0771079A2 Data transmission device |
| 04/30/1997 | DE19623665C1 Received signal mixture separation for multi-subscriber transmission |
| 04/29/1997 | US5625505 Method of and apparatus for regenerating partial-response record signal |
| 04/24/1997 | WO1997015124A1 An adaptive dual filter echo cancellation method |
| 04/23/1997 | EP0769867A2 Subband acoustic echo canceller |
| 04/23/1997 | EP0686323B1 One-bit analog-to-digital converters and digital-to-analog converters using an adaptive filter having two regimes of operation |
| 04/22/1997 | US5623318 Ghost cancelling method and apparatus using canonical signed digit codes |
| 04/16/1997 | EP0632947A4 Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlation synchronization. |
| 04/15/1997 | US5621800 Integrated circuit that performs multiple communication tasks |
| 04/15/1997 | US5621724 Echo cancelling device capable of coping with deterioration of acoustic echo condition in a short time |
| 04/09/1997 | EP0767570A2 Equalization of speech signal in mobile phone |
| 04/09/1997 | EP0767569A1 Method and device for adaptive identification and related adaptive echo canceller |
| 04/08/1997 | US5619539 Data detection methods and apparatus for a direct access storage device |
| 04/02/1997 | EP0766390A2 Time domain filter for a communication channel |
| 04/02/1997 | EP0766389A2 An adaptive frequency correction burst detector for GSM handset system |
| 04/02/1997 | EP0766388A2 Method for processing signal in CSD filter and circuit suitable for the method |
| 04/02/1997 | EP0765562A1 Adaptive microphone arrangement and method for adapting to an incoming target-noise signal |
| 04/01/1997 | US5617513 Method for analyzing activity in a signal |
| 04/01/1997 | US5617450 Digital subscriber loop interface unit |
| 03/27/1997 | WO1997011538A1 An adaptive filter for signal processing and method therefor |
| 03/27/1997 | WO1997011527A1 Transmission system using time dependent filter banks |
| 03/25/1997 | US5615233 Method for channel estimation using individual adaptation |
| 03/18/1997 | CA2045250C Echo canceler having adaptive digital filter unit associated with delta-sigma modulation circuit |
| 03/13/1997 | WO1997009790A1 A decimating prml signal processor system |
| 03/13/1997 | WO1997009782A1 Adaptive digital filtering process in the frequency domain |
| 03/11/1997 | US5610909 Multistage echo canceler including time variation compensation |
| 03/05/1997 | EP0760575A2 Echo canceller with adaptive and non-adaptive filters |
| 03/05/1997 | EP0760574A2 Echo canceller system with shared coefficient memory |
| 03/04/1997 | US5608804 Method of and apparatus for identifying a system with adaptive filter |
| 02/25/1997 | CA2111295C Aircraft sound source direction determining system for airports |
| 02/18/1997 | US5604769 Hybrid equalizer arrangement for use in data communications equipment |
| 02/13/1997 | WO1997005709A1 Adaptive despreader |
| 02/13/1997 | CA2228131A1 Adaptive despreader |
| 02/11/1997 | US5602934 Adaptive digital image signal filtering |
| 02/11/1997 | US5602929 Fast adapting control system and method |
| 02/11/1997 | US5602927 Vehicle internal noise reduction system and the method thereof |
| 02/11/1997 | US5602926 Method and apparatus of determining the sound transfer characteristic of an active noise control system |
| 02/05/1997 | EP0757462A2 Frequency offset correction for a data receiving system |
| 01/29/1997 | EP0756407A2 Noise controlled type handset |
| 01/29/1997 | EP0756404A2 Burst update for an adaptive equalizer |
| 01/28/1997 | US5598434 Automatic equalizer with a branched input for improved accuracy |
| 01/28/1997 | US5598433 Automatic equalizer and data mode convergence method |
| 01/28/1997 | US5598432 Equalizing received signal samples by receiving input in a first register at a first rate greater than or equal to the transmission rate and further receiving samples into a plurality of register at a second rate lower than the first rate |
| 01/22/1997 | EP0755141A2 Adaptive decision feedback equalization for communication systems |
| 01/22/1997 | CN1140945A Data receiving device |
| 01/22/1997 | CN1140944A Data receiving device |