Patents for H03H 17 - Networks using digital techniques (9,654)
08/1998
08/26/1998EP0860962A2 Adaptive equalizer
08/26/1998EP0860051A1 Circuit and method for the multiple use of a digital transverse filter
08/25/1998US5799078 Echo canceller
08/25/1998US5798954 Digital filter device having a bit shifter unit
08/25/1998US5797847 Method and apparatus for complex bandpass filtering and decimation in ultrasound beamformer
08/18/1998US5796820 Recovery of previous filter coefficients with smaller capacity memory
08/18/1998US5796814 Digital transmission system comprising a receiver with cascaded equalizers
08/18/1998US5796782 Digital modulator with Root-Nyquist filter
08/18/1998US5796643 Logical operator based digital filter
08/13/1998WO1998035439A1 Programmable analog bandpass filtering apparatus and method and design method for a discrete time filter
08/12/1998EP0858159A2 Band synthesis and band splitting filter bank encoder and decoder, encoding and decoding method
08/12/1998EP0858158A2 Circular median filter
08/12/1998CN1190287A Time spread root nyquist filter
08/11/1998US5793806 Transversal filter capable of processing an input signal high data rate
08/11/1998US5793315 Bit-serial digital expandor
08/06/1998WO1998034346A1 Polyphase interpolator/decimator using continuous-valued, discrete-time signal processing
08/06/1998WO1998025342A3 Decimation method and decimation filter
08/05/1998EP0755591B1 Determining echo return loss in echo cancelling arrangements
08/04/1998US5790590 Matched filter circuit
08/04/1998US5790440 Apparatus for estimating filter coefficients
08/04/1998US5790439 Reduced test time finite impulse response digital filter
07/1998
07/29/1998EP0855804A2 Receiver with analog and digital channel selectivity
07/29/1998EP0855796A2 Matched filter and filter circuit
07/29/1998EP0855109A1 Co-channel interference reduction
07/29/1998CN1189259A Method and arrangement for coding and decoding signals
07/28/1998US5787496 Digital signal processor having a partitioned memory with first and second address areas for receiving and storing data in sychronism with first and second sampling clocks
07/28/1998US5787392 Speech signal processing circuit and method for decoding a coded speech signal by controlling operation of a band synthesis filter
07/28/1998US5787390 Method for linear predictive analysis of an audiofrequency signal, and method for coding and decoding an audiofrequency signal including application thereof
07/28/1998US5787128 Nonlinear signal correlator and method therefor
07/28/1998US5787023 Digital filter device for electronic musical instruments
07/28/1998US5786778 Variable sample-rate DAC/ADC/converter system
07/23/1998WO1998032223A2 Digital signal mixing architecture
07/23/1998CA2277818A1 Digital signal mixing architecture
07/22/1998EP0719478B1 Digital to analog conversion using nonuniform sample rates
07/21/1998US5784419 For filtering an input signal and producing a filtered signal
07/21/1998US5784378 Method and apparatus for time shaped finite impulse response filter with multiple signal stream capability
07/21/1998US5784285 Waveform analyzer
07/21/1998US5783977 Tunable and bandwidth programmable multi-element filter system
07/21/1998US5783974 Digital interpolation up sampling circuit and digital modulator using same
07/16/1998WO1998015083A3 Signal transformation method and apparatus
07/15/1998EP0853383A2 Re-sampling circuit and associated method
07/15/1998EP0853382A2 Time spread root nyquist filter
07/15/1998EP0853292A2 Interpolator for and method of interpolating digital samples
07/14/1998US5781590 Partial response maximum likelihood (PRML) signal processing apparatus
07/14/1998US5781586 Method and apparatus for encoding the information, method and apparatus for decoding the information and information recording medium
07/14/1998US5781584 Code acquisition and tracking circuit using switched matched filter and sliding correlators
07/14/1998US5781463 Adaptive digital filter with high speed and high precision coefficient sequence generation
07/14/1998US5781462 Multiplier circuitry with improved storage and transfer of booth control coefficients
07/14/1998CA2117920C A multi-channel digital transmitter and receiver
07/09/1998WO1998012810A3 Method and apparatus for producing a deterministic sequence from an iir filter
07/08/1998EP0641508B1 Method and apparatus for enhancing sharpness of a sequence of images subject to continuous zoom
07/08/1998CN1187070A Median filtering method and apparatus using plurality of prodcessing elements
07/08/1998CN1187069A Filter device
07/07/1998US5778310 Co-channel interference reduction
07/07/1998US5777914 Technique for reducing power consumption in digital filters
07/07/1998US5777913 Resolution enhancement of fixed point digital filters
07/07/1998US5777912 Linear phase finite impulse response filter with pre-addition
07/07/1998US5777909 High pass filter with coefficient switching to improve settling time
07/07/1998US5777908 Comb filter with a smaller number of delay elements
07/07/1998US5777900 Filtering processor and filter method
07/07/1998CA2138810C Method of and apparatus for identifying a system with adaptive filter
07/02/1998DE19756686A1 Complex finite impulse response filter circuit
07/01/1998EP0851579A2 A digital filter
07/01/1998EP0851553A1 Electronic trip device comprising, in series, a finite and infinite impulse response filter
07/01/1998EP0851406A2 Spectrum feature parameter extracting system based on frequency weight estimation function
06/1998
06/30/1998US5774842 Noise reduction method and apparatus utilizing filtering of a dithered signal
06/30/1998US5774835 Method and apparatus of postfiltering using a first spectrum parameter of an encoded sound signal and a second spectrum parameter of a lesser degree than the first spectrum parameter
06/30/1998US5774564 Active controller using lattice-type filter and active control method
06/30/1998US5774560 For processing an audio signal
06/30/1998US5774512 Higher order digital phase loop filter
06/30/1998US5774506 Data receiving apparatus
06/30/1998US5774470 Digital signal processor, error detection method, and recording medium reproducer
06/30/1998US5774387 Tracking filter
06/30/1998US5774085 Apparatus and method for obtaining proper output signal in which gain and DC component are regulated based upon on measured amplitude distribution
06/30/1998US5772603 Device for filtering ECG signals
06/30/1998CA2075051C Signal weighting system for digital receiver
06/25/1998WO1998019396A3 Sample rate conversion
06/24/1998EP0849879A2 Recursive filters for polyphase structures
06/24/1998EP0848866A1 Decision feedback filter device in the frequency domain
06/18/1998WO1998026610A2 Hybrid instruction set for versatile digital signal processing system
06/18/1998WO1998026609A2 Versatile digital signal processing system
06/17/1998EP0848522A2 A generalized multimodulus technique for blind equalization
06/17/1998EP0848307A1 Fuzzy filtering method and associated fuzzy filter
06/17/1998EP0757818A4 Dynamic digital filter using neural networks
06/17/1998CN1185064A Digital matched filter
06/16/1998US5768473 Adaptive speech filter
06/16/1998US5768313 Adaptive equilizer
06/16/1998US5768311 Interpolation system for fixed sample rate signal processing
06/16/1998US5768166 Adaptive filter for electrical supply line noise
06/16/1998US5768165 Digital time signal filtering method and device for transmission channel echo correction
06/12/1998CA2219392A1 A generalized multimodulus technique for blind equalization
06/11/1998WO1998025343A2 Floating point digital transversal filter
06/11/1998WO1998025342A2 Decimation method and decimation filter
06/11/1998WO1998025341A1 Filter circuit
06/10/1998EP0847015A1 Digital filter assembly for interpolation
06/09/1998US5764113 Re-sampling circuit and modulator using same
06/09/1998US5764074 System for, and method of, minimizing noise in an integrated circuit chip
06/09/1998US5762068 ECG filter and slew rate limiter for filtering an ECG signal
06/09/1998CA2124709C Reduced speed equalizer
06/03/1998EP0845909A1 Method and filter for reducing blocking effect
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