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