Patents for H03H 15 - Transversal filters (1,369)
12/1991
12/18/1991EP0461931A2 Adaptive equalizer capable of effectively removing a remaining fading in an equalized signal
12/11/1991CN1056971A Control signal spreader
12/04/1991EP0459687A2 Traveling wave type transversal equalizer
12/04/1991EP0459407A2 Digital comb filter
11/1991
11/26/1991US5068667 Cross-polarization interference canceller
11/13/1991EP0456242A1 Automatic equalizer and semiconductor integrated circuit containing such an equalizer
10/1991
10/23/1991EP0453282A2 Digital subband encoding apparatus
10/22/1991US5060088 Adaptive equalization for recording systems using partial-response signaling
10/22/1991US5060056 Luminance signal/color signal separating circuit and noise reduction circuit using a comb filter
10/15/1991US5058130 Jitter equalizer for digital transmission filter
10/08/1991US5055795 Traveling wave type transversal equalizer
09/1991
09/25/1991EP0448251A2 Demodulating system capable of accurately equalizing received signals using error correction codes
09/24/1991US5051942 Method and apparatus for calculating filter factors
09/24/1991US5051709 Saw device tapped delay line and equalizer
09/24/1991CA1289653C Apparatus for compressing and/or expanding time base
09/17/1991CA1289198C Line equalizer
09/11/1991EP0446053A2 Logical comb filters
09/10/1991US5048055 Multi-data rate selectable equalizer
09/10/1991US5047840 Luminance signal/chrominance signal separating circuit and a noise reduction circuit using a 3 line logical comb filter
09/04/1991EP0445057A2 Multi-data rate selectable equalizer
08/1991
08/28/1991EP0443333A1 Cross-polarization interference canceller
08/28/1991EP0443115A1 Wave digital filter composed of memories and n-port adaptors
07/1991
07/09/1991US5031194 Wideband digital equalizers for subscriber loops
06/1991
06/18/1991US5025234 Transversal filter with wide band phase shifters in series with the delay cells
06/11/1991US5023713 Motion detection circuit for use in a television
06/07/1991WO1991008549A1 Waveshaping transversal filter and method utilizing the same for data transmission over coaxial cable
06/04/1991US5021756 Transversal and recursive filters useable in a diplexer
05/1991
05/29/1991EP0275302B1 Correlated sampling amplifier
05/29/1991EP0259419B1 Double digital demodulator
05/22/1991EP0428199A2 Receiver for digital communication system with channel estimator
05/22/1991EP0427951A2 System to generate switching criteria and equalize adaptively in data spectrum
05/08/1991EP0426426A2 Filter device
04/1991
04/02/1991US5005184 Method and apparatus for waveform equalization
03/1991
03/27/1991EP0419225A2 Transversal type automatic equalizer with tap coefficient protection
03/26/1991CA1282167C Low distortion filters for separating frequency or phase modulated signals from composite signals
03/19/1991CA1281783C Method and apparatus for equalization of data transmission system
03/06/1991EP0415399A2 Luminance/chrominance separation circuit
02/1991
02/21/1991WO1991002407A1 Wideband digital equalizers for subscriber loops
02/13/1991CN1011569B Device for eliminating fixed echoes for ultrasonic echograph
02/07/1991WO1991001593A1 Saw device tapped delay line and apparatus using same
02/05/1991US4991003 Receiver with correction for comb filter frequency response
01/1991
01/26/1991WO1991001526A1 Digital filter and method of design
12/1990
12/27/1990EP0404237A2 Method and device for noise supression of a digital signal
11/1990
11/28/1990EP0399968A1 A method and arrangement for avoiding erroneous echoelimination and/or for avoiding erroneous equalization in a telecommunication system
11/22/1990EP0398441A1 Adaptive discrete-time transversal filter
11/22/1990EP0398089A2 Comb filter circuit for removing noise
11/20/1990CA1276693C Demodulator
11/15/1990WO1990013978A1 Two-line crest filter with spatial mixing
11/01/1990WO1990013185A1 A method and arrangement for avoiding erroneous echo-elimination and/or equalization in a telecommunication system
10/1990
10/31/1990EP0220403B1 Series network arrangement adjustable in stages
10/24/1990EP0394000A2 Receiver with correction for comb filter frequency response
09/1990
09/04/1990US4954795 Surface acoustic wave filter for suppressing surface to surface interference for a satellite communication receiver
08/1990
08/29/1990EP0384448A2 Digital filter
08/29/1990EP0384447A2 Digital filter
07/1990
07/19/1990DE4000790A1 Colour signal processor for PAL video tape recorder - has signal reproducer contg. separate luminance and chrominance signals, and identifying signal, to residual chrominance component
07/11/1990EP0377300A2 Transversal and recursive filters
05/1990
05/22/1990US4928287 Automatic equalizer
05/16/1990EP0368189A2 Reduction of signal processing requirements in a 2B1Q-code echo canceller or equalizer
05/15/1990US4926499 Carrier phase controller for a receiver of phase modulated signals
05/15/1990US4926472 Reduction of signal processing requirements in a 2B1Q-code echo canceller or equalizer
05/01/1990US4922509 Method of implementing programmable matched filters, and corresponding filters and filter banks
04/1990
04/25/1990EP0364967A2 Luminance/chrominance signal separation circuit for pal color television signal
04/24/1990US4920530 Adaptive time-discrete filter for forming a cancelling signal from synchronous data symbols
04/24/1990US4920510 Sample data band-pass filter device
04/24/1990US4920508 Multistage digital signal multiplication and addition
04/24/1990US4920408 Circuit for separating composite color television signal into luminance signal and chrominance signal
04/18/1990EP0363551A1 Adaptive equalization for recording systems using partial-response signaling
04/17/1990US4918402 Delay circuit having at least one all-pass network
04/17/1990US4918401 Step adjustable distributed amplifier network structure
04/11/1990CN1007566B Charge-coupled device
04/05/1990DE3928936A1 CCD delay line with buried CC element - has input bias voltage adjuster for clamping signal to be delayed and its supply to delay line
03/1990
03/21/1990EP0358757A1 Measurement of the variation in time of a periodic signal
03/07/1990CN1007111B Charge-coupled transversal filter
02/1990
02/20/1990US4903019 Sampling frequency converter for converting a lower sampling frequency to a higher sampling frequency and a method therefor
02/13/1990CA1265854A1 Adaptive filter for producing an echo cancellation signal in a transceiver system for duplex digital communication through one single pair of conductors
02/13/1990CA1265847A1 Adaptive time-discrete filter for forming a cancelling signal from synchronous data symbols
02/06/1990CA1265594A1 Echo cancellers for bidirectional digital transmission systems
12/1989
12/27/1989EP0348100A2 Phase jitter compensation arrangement using an adaptive IIR filter
11/1989
11/28/1989US4883060 Device for eliminating fixed echoes for an ultrasonic echograph
11/09/1989DE3807147A1 Verfahren und anordnung zur messung des zeitlichen verlaufs eines periodischen signals mit hoher zeitaufloesung nach einem boxcar-aehnlichen verfahren The method and process arrangement for measuring the temporal course of a periodic signal with high time resolution according to a similar boxcar
11/02/1989WO1989008266A3 Measurement of the variation in time of a periodic signal
10/1989
10/24/1989US4876703 Apparatus for compressing and/or expanding time base
10/24/1989US4876464 Sampled data circuit
10/04/1989EP0335447A2 Non-linear comb filter for color TV receivers
10/03/1989CA1262187A1 Charge-coupled device
09/1989
09/26/1989CA1261008A1 Adaptive transversal filter
09/13/1989EP0332079A2 Adaptive equalizer system
09/12/1989CA1259385A1 Cross-polarization canceler/equalizer
09/08/1989WO1989008266A2 Measurement of the variation in time of a periodic signal
08/1989
08/29/1989CA1258885A1 Transversal equalizer
08/16/1989EP0327966A1 Transverse filter
08/15/1989US4858233 Redundancy scheme for multi-stage apparatus
08/01/1989US4853651 Delay circuit with all-pass network
07/1989
07/11/1989US4847864 Phase jitter compensation arrangement using an adaptive IIR filter
07/11/1989US4847682 Adaptive comb filter for artifact-free decoding
07/04/1989US4845547 Non-linear comb filter for color TV receivers
07/04/1989CA1256955A1 Passband equalization of modulated quadrature-related carrier signals
06/1989
06/28/1989EP0322060A2 Adjusting filter coefficients
06/27/1989US4843582 Digital filter in which linear combinations of powers of two are converted to binary numbers using wallace trees
06/21/1989EP0321045A2 Adaptive comb filter for artifact-free decoding
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