Patents
Sitemap › H03 - Basic electronic circuitry › H03H - Impedance networks, e.g. resonant circuits; Resonators › H03H 21 - Adaptive networks
Patents for H03H 21 - Adaptive networks (3,855)
01/1999
01/19/1999CA2076123C Decision feedback equalization for digital cellular radio
01/12/1999US5859870 Time diversity transmission-reception system
01/12/1999CA2143227C Noise-canceling differential microphone assembly
01/06/1999CN1204124A Method, equipment and recording device for suppressing pulsed interference in analogue audio and or video signals
01/05/1999US5856970 Multi-channel echo cancellation method and apparatus
12/1998
12/30/1998WO1998059418A2 A blind equalization having reduced complexity
12/30/1998EP0887797A2 Method, equipment and recording device for suppressing pulsed interference in analogue audio and/or video signals
12/30/1998CN1203711A Echo cancelling system for digital telephony applications
12/29/1998US5854717 Self-synchronization in a magnetic recording channel utilizing time-domain equalization
12/29/1998US5853364 Method and apparatus for estimating physiological parameters using model-based adaptive filtering
12/29/1998CA2151779C Adaptive filter capable of removing a residual echo at a rapid speed
12/29/1998CA2136887C High speed quantization-level-sampling modem with equalization arrangement
12/23/1998WO1998058450A1 Methods and apparatus for blind signal separation
12/23/1998CA2294262A1 Methods and apparatus for blind signal separation
12/22/1998US5852661 Adaptive echo cancellation used with echo suppression to reduce short and long duration echoes
12/22/1998CA2119625C Equalization technique for compensating for degradation to the transmission of digitally modulated signals
12/16/1998EP0884926A1 Method and device for optimized processing of an interfering signal when recording sound
12/16/1998EP0884844A2 Adaptive filter, step size control method thereof, and record medium therefor
12/16/1998EP0607393B1 Neural filter architecture for the non-linear, adaptative elimination of disturbing interferences
12/16/1998CN1202240A Method for adaptive kalman filtering in dynamic systems
12/03/1998WO1998042082A3 Method and arrangement for forming an address
12/01/1998US5845244 Adapting noise masking level in analysis-by-synthesis employing perceptual weighting
12/01/1998US5844946 Soft-decision receiver and decoder for digital communication
11/1998
11/26/1998WO1998053595A1 Method and device for reducing multi-channel acoustic echo and adapting sound to space conditions
11/25/1998EP0880261A2 Echo canceller and adapting method thereof
11/25/1998EP0880253A2 Blind training of a decision feedback equalizer
11/25/1998CN1200210A An adaptive dual filter echo cancellation method
11/24/1998US5842158 Method for adaptive filtering of well logging data
11/24/1998US5841809 Access line termination unit
11/24/1998US5841485 Video signal processing and processor taking ratio of intermediate filtered signals
11/19/1998WO1998052282A1 Method and apparatus for efficient implementation of a multirate lms filter
11/17/1998CA2133236C Method and apparatus for channel equalization
11/11/1998EP0877517A2 Output interface for a digital communication system
11/11/1998EP0877514A2 Matched filter
11/11/1998EP0876706A1 Adaptive filters and equalisers
11/10/1998US5835682 Dynamical system analyzer
11/10/1998US5835531 Signal equalizer
11/10/1998US5835510 High-speed viterbi decoder
11/04/1998EP0875095A1 Channel training of multi-channel receiver system
11/03/1998US5831880 Method for processing a signal in a CSD filter and a circuit therefor
11/03/1998CA2118227C Coordinated coding for digital transmission
10/1998
10/28/1998EP0874514A2 Method and apparatus for cancelling multi-channel echo
10/28/1998EP0874499A2 Analog-to-digital converter for digital receiver
10/28/1998EP0874491A2 Signal processing apparatus and method
10/28/1998EP0874466A2 Reed-Solomon decoding circuit and method
10/27/1998US5828589 Self-adaptive trans-hybrid balance filter
10/22/1998WO1998047227A1 Dual-processing interference cancelling system and method
10/22/1998CA2286982A1 Dual-processing interference cancelling system and method
10/21/1998EP0872955A2 Look-ahead LMS technique
10/20/1998US5825898 System and method for adaptive interference cancelling
10/20/1998US5825818 Apparatus and method of recovering a timing signal in a transmission apparatus by adjusting tap coefficients
10/14/1998EP0870366A1 Resolution enhancement of fixed point digital filters
10/14/1998EP0870365A1 Gauging convergence of adaptive filters
10/14/1998EP0870363A1 Impulse noise effect reduction
10/14/1998CN1195930A Audio signal coding method and apparatus
10/07/1998EP0869373A2 Improvement in satellite position fixing
10/06/1998US5818876 Method and apparatus of adaptive maximum likelihood sequence estimation using a variable convergence step size
10/06/1998US5818868 Direct-sequence spread-spectrum receiver including code acquisition and detection using an autoadaptive threshold
10/06/1998US5818741 Digital filtering system for signals
09/1998
09/30/1998CN1194427A Method and device for voice operating and remote controlling apparatus
09/29/1998US5815585 For converting an electric signal into a mechanic or an acoustic signals
09/29/1998US5815580 Compensating filters
09/29/1998US5815533 Receive processor device for use in a digital mobile radio systems
09/24/1998WO1998042083A1 Audio coding method and apparatus
09/24/1998WO1998042082A2 Method and arrangement for forming an address
09/23/1998CN1193794A Adaptive signal processing method of digital recording/reproducing apparatus and circuit thereof
09/22/1998US5812970 Method based on pitch-strength for reducing noise in predetermined subbands of a speech signal
09/17/1998DE19811039A1 Verfahren und Vorrichtungen zum Codieren und Decodieren von Audiosignalen Methods and apparatuses for encoding and decoding of audio signals
09/15/1998US5809084 Data receiving in a digital mobile communication
09/15/1998US5809074 Technique for improving the blind convergence of an adaptive equalizer using a transition algorithm
09/15/1998US5809073 Decision feedback equalizer and method of setting 2-input decision slice
09/15/1998US5809072 Mixed signal adaptive equalizer
09/15/1998CA2118720C Method for channel estimation using individual adaptation
09/15/1998CA2076007C Digital virtual earth active cancellation system
09/15/1998CA2067822C In-wire selective cancellation system
09/09/1998EP0862778A1 Audio noise reduction system implemented through digital signal processing
09/09/1998EP0862777A1 Dsp decoder for decoding analog sr encoded audio signals
09/09/1998EP0862730A2 Method for adaptive kalman filtering in dynamic systems
09/09/1998CN1192830A Adaptive despreader
09/08/1998US5805639 Adaptive network
09/08/1998US5805638 Systems and methods of digital wireless communication using equalization
09/08/1998US5805481 Update block for an adaptive equalizer filter configuration capable of processing complex-valued coefficient signals
09/08/1998US5805478 Data detection method and apparatus in data storage device
09/03/1998WO1998038582A1 Adaptive dual filter echo cancellation
08/1998
08/26/1998EP0860996A2 Adaptive signal processing method and circuit for a digital recording/reproducing apparatus
08/26/1998EP0860962A2 Adaptive equalizer
08/26/1998EP0860944A1 Separation system for non-stationary sources
08/26/1998CN1191353A Apparatus and method for estimation of transmitted signals in receiver in operation of digital signal transmission
08/26/1998CN1191351A Apparatus and method for estimation of transmitted signals in receiver in operation of digital signal transmission
08/19/1998EP0858720A1 Method and apparatus for reduction of unwanted feedback
08/18/1998US5796820 Recovery of previous filter coefficients with smaller capacity memory
08/18/1998US5796814 Digital transmission system comprising a receiver with cascaded equalizers
08/18/1998US5796725 Echo canceller capable of cancelling an echo signal at a high speed
08/18/1998CA2077104C Reception of tdma digital data signal with compensation for channel variations
08/12/1998CN1190287A Time spread root nyquist filter
08/06/1998DE19702321A1 Adaptive filtering of sample series
08/05/1998EP0856834A2 Noise canceler
08/05/1998EP0856833A2 Noise canceling method and apparatus for the same
08/05/1998EP0856213A1 An adaptive dual filter echo cancellation method
08/04/1998USRE35867 Method and apparatus for controlling coefficients of adaptive filter
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