| Patents for H03H 21 - Adaptive networks (3,855) |
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| 01/28/2004 | EP1384321A1 Adaptive equalizer system for short burst modems and link hopping radio networks |
| 01/28/2004 | CN1136573C Reproducing device and method for improving performance of data using regulating filter coefficient of equalizer |
| 01/27/2004 | US6684234 Method for filtering a digital signal sequence |
| 01/27/2004 | US6684233 Adaptive filter, control method of adaptive filter and storage medium storing therein program thereof |
| 01/27/2004 | US6683960 Active noise control apparatus |
| 01/27/2004 | US6683557 Technique for changing a range gate and radar for coverage |
| 01/27/2004 | CA2238069C Audio noise reduction system implemented through digital signal processing |
| 01/22/2004 | WO2004008707A1 Adaptive pre-equalization method and apparatus |
| 01/22/2004 | US20040013276 Analog audio signal enhancement system using a noise suppression algorithm |
| 01/22/2004 | US20040013038 System and method for processing a signal being emitted from a target signal source into a noisy environment |
| 01/21/2004 | CN1135721C Audio signal coding method and relative equipment thereof |
| 01/14/2004 | EP1088394B1 Adaptive state space signal separation, discrimination and recovery architectures and their adaptations for use in dynamic environments |
| 01/13/2004 | US6678376 Echo canceling apparatus |
| 01/13/2004 | US6678317 Adaptive equalizer device and method for controlling adaptive equalizer |
| 01/13/2004 | US6677814 Method and apparatus for filter tuning |
| 01/08/2004 | WO2003073612A3 Method of blind signal separation |
| 01/08/2004 | US20040003921 Slickline signal filtering apparatus and methods |
| 01/06/2004 | US6674795 System, device and method for time-domain equalizer training using an auto-regressive moving average model |
| 01/02/2004 | EP1374399A1 Aliasing reduction using complex-exponential modulated filterbanks |
| 01/01/2004 | US20040001538 Error convergence measurement circuit for providing convergence of a filter |
| 12/30/2003 | USRE38374 Training a recursive filter by use of derivative function |
| 12/30/2003 | US6670910 Near object detection system |
| 12/25/2003 | US20030235244 Method and apparatus for performing adaptive filtering |
| 12/17/2003 | EP1372262A2 Method for adjusting filter parameters and associated reproducing apparatus |
| 12/17/2003 | EP1371058A1 Geometric source separation signal processing technique |
| 12/17/2003 | CN1131508C Transmission system comprising at least a coder |
| 12/16/2003 | US6665696 Delayed adaptive least-mean-square digital filter |
| 12/16/2003 | US6665695 Delayed adaptive least-mean-square digital filter |
| 12/11/2003 | WO2003103170A2 Bandwidth adaptation rule for adaptive noise filter for inverse filtering with improved disturbance rejection bandwidth and speed |
| 12/11/2003 | US20030227842 Apparatus and method of updating filter tap coefficients of an equalizer |
| 12/10/2003 | CN1130840C System and method for adaptive interference cancelling |
| 12/10/2003 | CN1130827C Convergece detector and method of adaptive filter |
| 12/09/2003 | US6661250 Programmable impedance control circuit |
| 12/04/2003 | WO2003009469A3 Filter circuit and method for processing an audio signal |
| 12/03/2003 | CN1459787A Apparatus and method for updating filter tap coefficient of balancer |
| 12/02/2003 | US6657581 Automotive lane changing aid indicator |
| 11/26/2003 | EP1365402A2 Apparatus and method of updating filter tap coefficients of equalizer |
| 11/26/2003 | EP0978120B1 Device and method for analysis and filtration of sound |
| 11/26/2003 | CN1129133C Adaptive equalizing circuit |
| 11/25/2003 | US6654471 Method, equipment and recording device for suppressing pulsed interference in analogue audio and/or video signals |
| 11/25/2003 | US6654412 Adaptive filter and learning method thereof |
| 11/19/2003 | CN1457492A Adaptive equalizing circuit and regenerative device using it, and adptive equalizing method |
| 11/18/2003 | US6650756 Method and apparatus for characterizing audio transmitting system, and method and apparatus for setting characteristics of audio filter |
| 11/18/2003 | US6650701 Apparatus and method for controlling an acoustic echo canceler |
| 11/13/2003 | US20030210182 Video amplifier for a radar receiver |
| 11/13/2003 | US20030210172 Technique for changing a range gate and radar coverage |
| 11/12/2003 | EP1360761A2 N dimensional, non-linear, static, adaptive, digital filter design using d scale non-uniform sampling |
| 11/12/2003 | CN1455572A Improved sound-echo elimination |
| 11/06/2003 | US20030206640 Microphone array signal enhancement |
| 11/05/2003 | CN1127261C Data processing device |
| 11/04/2003 | US6643676 Initialization /prewindowing removal postprocessing for fast RLS filter adaptation |
| 11/04/2003 | US6642908 Switched beam antenna architecture |
| 11/04/2003 | US6642781 Selectable equalization system and method |
| 11/04/2003 | US6642780 Variable frequency filter circuit |
| 11/04/2003 | US6641541 Method and apparatus for a morphology-preserving smoothing filter |
| 10/30/2003 | US20030202654 Acoustic echo cancellation |
| 10/29/2003 | EP1357553A1 Adaptive equalizing circuit and regenerative device using it, and adptive equalizing method |
| 10/29/2003 | EP1356589A1 Asymmetric multichannel filter |
| 10/29/2003 | CN1126049C Adaptive dual filter echo cancellation and use method thereof |
| 10/28/2003 | CA2311051C Method and apparatus for canceling echo |
| 10/21/2003 | US6636562 Unconstrained equalization method and apparatus with gain and timing bias to control runaway for direct access storage device (DASD) data channels |
| 10/21/2003 | US6636561 Channel equalisers |
| 10/16/2003 | WO2003085830A1 Adaptive multistage wiener filter |
| 10/16/2003 | US20030193617 Equalizer system including a comb filter in an HDTV system |
| 10/14/2003 | US6633894 Signal processing arrangement including variable length adaptive filter and method therefor |
| 10/09/2003 | WO2003084103A1 Analog audio enhancement system using a noise suppression algorithm |
| 10/08/2003 | CN1447953A System and method for adaptive filtering |
| 10/02/2003 | US20030185294 Adaptive filter employing adaptively controlled forgetting factor and adaptively controlling method of forgetting factor |
| 10/02/2003 | US20030185292 Adaptive filtering with DC bias compensation |
| 10/01/2003 | EP1349148A1 Noise removing method and device |
| 09/30/2003 | US6628707 Adaptive equalizer system for short burst modems and link hopping radio networks |
| 09/25/2003 | US20030182088 Method and apparatus for filtering a signal using a deadband |
| 09/23/2003 | US6625587 Blind signal separation |
| 09/18/2003 | WO2003026236A3 Adaptive equalizer which is independent of the amplitude of the transmited signal |
| 09/16/2003 | US6621863 Equalizing apparatus combining amplitude error with squared envelope error according to variable weights |
| 09/11/2003 | US20030171830 Vector estimation system, method and associated encoder |
| 09/10/2003 | CN1442029A Stereo audio processing device for deriving auxiliary audio signals such as direction and centre audio signals |
| 09/10/2003 | CN1121093C Method for adaptive kalman filtering in dynamic systems |
| 09/04/2003 | WO2003073612A2 Method of blind signal separation |
| 09/02/2003 | US6614852 System for the estimation of the complex gain of a transmission channel |
| 08/28/2003 | WO2003071679A1 Adaptive filtering with dc bias compensation |
| 08/28/2003 | WO2002014891A9 Automotive radar systems and techniques |
| 08/21/2003 | US20030156635 Adaptive filtering with DC bias compensation |
| 08/19/2003 | US6608527 Adaptive radio transceiver with low noise amplification |
| 08/14/2003 | US20030151842 Adaptive equalizing circuit and regenerative device using it, and adaptive equalizing method |
| 08/13/2003 | EP1334554A1 Adaptive line enhancer |
| 08/13/2003 | EP0990306B1 Methods and apparatus for blind signal separation |
| 08/13/2003 | CN1118179C Echo removing apparatus |
| 08/12/2003 | US6606641 System for varying the dynamic range of coefficients in a digital filter |
| 08/07/2003 | US20030149711 Filter bank approach to adaptive filtering method using independent component analysis |
| 08/06/2003 | EP1332553A1 Adaptive filter |
| 07/31/2003 | WO2003063352A1 Method and apparatus for filter tuning |
| 07/30/2003 | EP1331734A2 Method for adapting the coefficients of a digital filter according to the Equation-Error principle |
| 07/30/2003 | CN1116744C System and method for avoiding false convergence in the presence of tones in time-domain echo cancellation process |
| 07/29/2003 | US6601051 Neural systems with range reducers and/or extenders |
| 07/29/2003 | CA2056328C Digital receiver with reduced memory requirement for viterbi equalization |
| 07/17/2003 | US20030132799 Method and apparatus for filter tuning |
| 07/16/2003 | EP1327302A1 Digital pulse shaper with variable weighting function |
| 07/16/2003 | CN1115027C Adaptive equalizer |
| 07/15/2003 | US6594476 Adaptively peaked super-regenerative filter |