Patents for H03H 21 - Adaptive networks (3,855) |
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08/11/1999 | EP0935371A2 Multiported register file for updating the coefficients of a burst mode FIR filter |
08/10/1999 | US5937009 Sub-band echo canceller using optimum wavelet packets and cross-band cancellation |
08/05/1999 | WO1999039497A1 Generating calibration signals for an adaptive beamformer |
08/04/1999 | EP0659312A4 Decision feedback equalizer method and apparatus. |
08/03/1999 | US5933797 Adaptive dual filter echo cancellation |
08/03/1999 | CA2089154C Automatic frequency control by an adaptive filter |
07/29/1999 | WO1999038155A1 A decoding method and system comprising an adaptive postfilter |
07/29/1999 | WO1999038029A1 Surveillance device for signal-echo sensors |
07/29/1999 | DE19802724A1 Cross-correlating vehicular ultrasound radar-ranging system providing collision warning |
07/28/1999 | EP0792546B1 Distortion corrector for two data flows and corresponding method |
07/27/1999 | US5928312 Digital filter processing device |
07/21/1999 | EP0930726A2 Method for echo cancelling with adaptive FIR filters |
07/16/1999 | CA2257550A1 Process for echo suppression with adaptive fir filters |
07/13/1999 | US5923708 Decoding circuit for a read signal from a magnetic recording and reading system using partial response |
07/13/1999 | CA2157418C Beamformer using coefficient restrained adaptive filters for detecting interference signals |
07/08/1999 | DE19900344A1 Adaptive nonlinearity equalizing device e.g. for hard disc data |
07/07/1999 | EP0928065A2 Multiported register file for coefficient use in filters |
07/07/1999 | EP0927459A2 A blind equalization having reduced complexity |
07/06/1999 | US5920599 Soft decision decoder |
07/06/1999 | US5920595 Inter-cross wave compensation method and apparatus performing frequency conversion on signed not detected by a demodulating unit |
06/29/1999 | US5917862 Information reproducing apparatus and its automatic equalization maximum likelihood detecting method |
06/29/1999 | US5917855 Method and apparatus for detecting an original signal from a data storage device |
06/23/1999 | CA2254545A1 Multiported register file for coefficient use in filters |
06/23/1999 | CA2254543A1 Multiported register file for burst mode coefficient updating |
06/22/1999 | US5914983 Digital signal error reduction apparatus |
06/15/1999 | US5912966 Enhanced echo canceller for digital cellular application |
06/15/1999 | US5912828 Equalizer filter configuration for processing real-valued and complex-valued signal samples |
06/15/1999 | US5912821 Vibration/noise control system including adaptive digital filters for simulating dynamic characteristics of a vibration/noise source having a rotating member |
06/10/1999 | WO1999029094A1 Method and apparatus for cancelling echo originating from a mobile terminal |
06/09/1999 | EP0824798B1 Adaptive sub-band filtering |
06/08/1999 | US5910995 DSP decoder for decoding analog SR encoded audio signals |
06/01/1999 | US5909675 Device for recognizing information conveyed by a received signal |
06/01/1999 | US5909384 System for dynamically adapting the length of a filter |
06/01/1999 | US5908476 Photopolymerization |
05/27/1999 | WO1999026402A1 Echo canceller employing dual-h architecture having improved double-talk detection |
05/27/1999 | WO1999026401A1 Echo canceller employing dual-h architecture having improved non-linear echo path detection |
05/27/1999 | WO1999026400A1 Echo canceller employing dual-h architecture having improved coefficient transfer |
05/27/1999 | WO1999026399A1 Echo canceller employing dual-h architecture having split adaptive gain settings |
05/27/1999 | WO1999026355A1 Acoustic echo cancellation equipped with howling suppressor and double-talk detector |
05/27/1999 | CA2307678A1 Echo canceller employing dual-h architecture having split adaptive gain settings |
05/25/1999 | US5907623 Audio noise reduction system implemented through digital signal processing |
05/25/1999 | US5907497 Update block for an adaptive equalizer filter configuration |
05/25/1999 | CA2084034C Adaptive receiver apparatus |
05/20/1999 | WO1999016170A3 Device for separation of signals |
05/19/1999 | EP0649589B1 Adaptive audio systems and sound reproduction systems |
05/18/1999 | US5905717 Echo canceller for a packet signal |
05/18/1999 | US5905659 Training a recursive filter by use of derivative function |
05/06/1999 | EP0913951A2 Method for suppressing narrow-band, fixed-frequency interference in an audio signal |
05/06/1999 | EP0635178B1 A method for avoiding self-oscillation in conjunction with echo cancellation |
05/04/1999 | US5901175 Dynamically adaptive equalizer system and method |
05/04/1999 | US5901075 In a digital adaptive finite impulse response filter |
05/04/1999 | CA2168341C An audio processing system for point-to-point and multipoint teleconferencing |
04/28/1999 | EP0911967A2 Apparatus and method for equilizer filter units |
04/28/1999 | CN1215540A Acoustic feedback correction |
04/27/1999 | US5898731 Auto-coefficient renewal digital channel equalizer |
04/27/1999 | CA2086980C Adaptive equalizer and receiver |
04/21/1999 | EP0910166A2 Adaptive filter |
04/20/1999 | US5895479 Prediction filter |
04/15/1999 | WO1999018666A1 Signal processor with local signal behavior |
04/15/1999 | CA2305381A1 Signal processor with local signal behavior |
04/14/1999 | EP0909065A2 Apparatus and method for a reduced component equalizer circuit |
04/14/1999 | EP0909029A2 Filter coefficients adaptation method and adaptive digital filter device |
04/14/1999 | EP0908018A2 System and method for adaptive interference cancelling |
04/13/1999 | US5894495 Adaptive digital filter |
04/07/1999 | EP0907259A2 CDMA receiving method and receiver |
04/06/1999 | US5892836 Digital hearing aid |
04/01/1999 | WO1999016170A2 Device for separation of signals |
03/31/1999 | EP0904640A1 Process for separating a received mixture of signals |
03/31/1999 | CN1212555A Direction transform echo canceller and method |
03/18/1999 | WO1998059418A3 A blind equalization having reduced complexity |
03/16/1999 | CA2061930C Adaptive matched pre-filtering of a decision feedback equalized input |
03/10/1999 | CN1210608A Noisy speech parameter enhancement method and apparatus |
03/04/1999 | WO1999010715A1 Signal processing system for sensing a periodic signal in noise |
03/04/1999 | CA2297891A1 Signal processing system |
02/24/1999 | EP0898364A2 Compensating filters |
02/24/1999 | EP0898266A2 A method and an arrangement for attenuating noise in a space by generating antinoise |
02/24/1999 | EP0897574A1 A noisy speech parameter enhancement method and apparatus |
02/24/1999 | CN1209230A Channel training of multi-channel receiver system |
02/24/1999 | CN1209227A Gauging convergence of adaptive filters |
02/24/1999 | CN1209226A Resolution enhancement of fixed point digital filiter |
02/24/1999 | CN1209224A Impulse noise effect reduction |
02/24/1999 | CN1208994A Flow line type parallel-to-serial frame minimum mean square self-adaption filter and method for mfg. same |
02/23/1999 | US5875215 For use in a receiver |
02/23/1999 | CA2169961C Interference suppression in cdma systems |
02/23/1999 | CA2074277C Adaptative equalization method reducing intersymbol interference and related receiver device and application |
02/16/1999 | US5872666 Decoder circuitry with PRML signal processing for reproducing apparatus |
02/11/1999 | WO1999007071A1 Adaptive filter system having mixed fixed point or floating point and block scale floating point operators |
02/11/1999 | DE19834695A1 Adaptive equalisation method for data transmission system |
02/10/1999 | EP0896481A1 Adaptive filter |
02/10/1999 | EP0896428A2 Method for adaptation of FIR filters |
02/09/1999 | US5870372 Adaptive equalizer of recorded information reproducing apparatus |
02/09/1999 | US5868806 Abrasive tape and method of producing the same |
02/03/1999 | EP0895384A2 Sequence estimation method and sequence estimator |
02/03/1999 | CN1041985C Method and device for estimating transmitted signals in a receiver in digital signal transmission operation |
02/02/1999 | US5867531 Maximum likelihood sequence estimator and maximum likelihood sequence estimating method |
02/02/1999 | US5867486 Method and an apparatus for unknown system identification |
02/02/1999 | CA2086358C Tap-weight controller for adaptive matched filter receiver |
01/27/1999 | CN1206528A Transmission of digital information signal having specific first sampling frequency |
01/20/1999 | EP0809842A4 Adaptive speech filter |
01/19/1999 | CA2153376C Maximum-likelihood sequence estimator with variable number of states |