Patents for H03H 17 - Networks using digital techniques (9,654) |
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12/13/2001 | US20010050966 Signal transformation method and apparatus |
12/12/2001 | EP1162760A1 Impulse response inferrer and propagation path inferring method |
12/12/2001 | EP1023730B1 Frame-based audio coding with additional filterbank to attenuate spectral splatter at frame boundaries |
12/12/2001 | CN1326279A Low-complexity digital match filter for broadband CDMA primary synchronization channel |
12/11/2001 | US6330579 Fir filter based upon squaring |
12/11/2001 | US6330336 Active silencer |
12/11/2001 | US6330287 Digital channelizer having efficient architecture for window presum using distributed arithmetic for providing window presum calculations in one clock cycle |
12/06/2001 | WO2001052546A3 Image interpolation and decimation using a continuously variable delay filter and combined with a polyphase filter |
12/05/2001 | EP1161003A1 Arrival direction determining method and radio receiving device |
12/05/2001 | EP1160979A2 Sampling rate converter and method |
12/05/2001 | EP1160978A1 Digital filter |
12/05/2001 | EP1160977A2 Method and apparatus for reducing aliasing in cascaded filter banks |
12/05/2001 | EP0870364B1 Sample rate conversion |
12/05/2001 | CN1325565A Circuit Configuration for quantisation of digital signals and for filtering quantisation noise |
12/04/2001 | US6327631 Signal processing apparatus |
12/04/2001 | US6327603 Digital channelizer having efficient architecture for presum discrete fourier transformation selectively of real or complex data and method of operation |
11/29/2001 | US20010045901 Optimized sampling rate |
11/28/2001 | EP1158674A2 A digital filter for IQ-Generation, noise shaping and neighbour channel suppression |
11/28/2001 | EP1157381A1 Variable equalizer control system |
11/28/2001 | CN1324513A Apparatus for performing a non-integer sampling rate change in a multichannel polyphase filter |
11/27/2001 | US6324559 Odd-transform fast convolution |
11/24/2001 | CA2347857A1 A digital filter for iq-generation, noise shaping and neighbour channel suppression |
11/22/2001 | WO2001089087A1 Ghost eliminating equalizer |
11/22/2001 | WO2001089086A1 Spectrum modeling |
11/22/2001 | WO2001089085A1 Matched filter |
11/22/2001 | CA2409518A1 Ghost eliminating equalizer |
11/21/2001 | EP0894362B1 Filter switching method |
11/21/2001 | EP0742941B1 Tracking filter for periodic signals |
11/21/2001 | CN1323099A Recursive matched filter and matched filtering method |
11/20/2001 | US6321246 Linear phase FIR sinc filter with multiplexing |
11/20/2001 | US6320920 Phase coherence filter |
11/20/2001 | US6320918 Procedure for reducing interference in the transmission of an electrical communication signal |
11/15/2001 | WO2001086808A1 High order filters with controllable delay and performance |
11/15/2001 | WO2001043285A3 A reconfigurable fir filter using csd coefficient representation |
11/15/2001 | WO2001025731A3 A fast-responding electronic balance using a multi-filter |
11/15/2001 | US20010040933 Signal filtering |
11/15/2001 | DE10065564A1 Device for compensation of pulsed noise in xDSL systems has filter unit with three-dimensional statistical filter with frequency-selective weighting for filtering pulsed noise |
11/14/2001 | EP0903012A4 Method and apparatus for performing bandedge equalization |
11/14/2001 | CN1074846C Method for generating spectral noise weighting filter for use in speech coder |
11/13/2001 | US6317765 Sinc filter with selective decimation ratios |
11/13/2001 | US6317501 Microphone array apparatus |
11/13/2001 | US6317167 Sine x/x compensation circuitry merged with a digital modulator |
11/08/2001 | WO2001084734A2 Matched filter and receiver for mobile radio communication system |
11/08/2001 | WO2001084707A2 Adaptive phase and amplitude linearization method and apparatus |
11/08/2001 | US20010039556 Digital filter |
11/08/2001 | US20010038667 Matched filter and receiver for mobile radio communication system |
11/07/2001 | CN1074632C Sampling rate conversion method and apparatus |
11/06/2001 | USRE37440 Memory for programmable digital filter |
11/06/2001 | US6314132 Microprocessor structure and method for implementing digital filter operations |
11/06/2001 | US6314074 Recording information reproducing apparatus having circuits for reducing residual phase error |
11/06/2001 | US6313773 Multiplierless interpolator for a delta-sigma digital to analog converter |
11/06/2001 | US6313772 Complex carrier signal generator for determining cyclic wave shape |
11/06/2001 | CA2234738C Method and apparatus for cancelling multi-channel echo |
11/01/2001 | US20010037353 Time continuous FIR filter to implement a hilbert transform and corresponding filtering method |
11/01/2001 | US20010037351 Sample rate conversion method and apparatus |
11/01/2001 | US20010037350 Arrangement and method for signal processing and storing |
11/01/2001 | US20010036152 Polyphase-discrete fourier transform (DFT) sub-band definition filtering architecture |
10/31/2001 | EP1149470A1 System and methods for multimode operation of a digital filter with shared resources |
10/31/2001 | EP1074088B1 Method for converting the sampling rate |
10/31/2001 | CN1320316A Digital receiver for signal generated with discrete multi-tone modulation |
10/31/2001 | CN1320139A Process for applying polysilicate barrier coating upon polyolefin objects and the articles produced thereby |
10/30/2001 | US6311203 Multiplier, and fixed coefficient FIR digital filter having plural multipliers |
10/30/2001 | US6311201 Efficient low pass filter stage for a decimation filter |
10/30/2001 | US6310566 Digital data sample rate conversion system with delayed interpolation |
10/30/2001 | CA2221217C Recursive filters for polyphase structures |
10/30/2001 | CA2204059C Intelligent near-end speech detection |
10/25/2001 | US20010034750 Fir filter tap architecture for highly dense layout |
10/25/2001 | US20010034749 Spatial median filter |
10/24/2001 | EP1148644A2 Pseudo-random number sequence output unit, transmitter, receiver, communication system and filter unit, pseudo-random number sequence output method, transmission method, receiving method and filtering method, and data recording medium |
10/24/2001 | EP1148640A2 Digital filter and reference signal cancelling device using the same |
10/24/2001 | EP0823146B1 Reduced complexity signal converter |
10/23/2001 | US6308191 Programmable processor circuit with a reconfigurable memory for realizing a digital filter |
10/23/2001 | US6308190 Low-power pulse-shaping digital filters |
10/23/2001 | US6307903 Low pass digital filter implemented in a modem of a television system |
10/23/2001 | US6307879 Digital radio communication apparatus and method of controlling the same |
10/18/2001 | US20010032226 Digital filters |
10/18/2001 | US20010031001 Interpolation filter circuit |
10/18/2001 | US20010031000 Method and apparatus for reducing convergence time |
10/18/2001 | DE10110294A1 Digital signal sampling rate conversion method by decimating, down-sampling and up-sampling |
10/17/2001 | EP1146323A1 Method and device for detecting the presence and energy of a given frequency in a sound and application to detection of knocking in combustion engines |
10/16/2001 | US6304679 Method and apparatus for implementing two-dimensional digital filters |
10/16/2001 | US6304402 Equalizer and magnetically recorded-signal reproducer |
10/16/2001 | US6304133 Moving average filter |
10/16/2001 | CA2030623C A method and arrangement for avoiding erroneous echo-elimination and/or equalization in a telecommunication system |
10/11/2001 | WO2001076115A1 Matched filter and method for determining correlation |
10/11/2001 | US20010028319 Apparatus for and method of converting sampling frequency of digital signals |
10/11/2001 | DE10015700A1 Digital signal sampling rate conversion method by using sampling period which is integer multiple of length of polynomial elements of filter impulse response |
10/11/2001 | DE10003700A1 Digitales Filter Digital filter |
10/10/2001 | EP1142144A1 Circuit for a multi-standard communications terminal |
10/10/2001 | EP1142134A1 Method and apparatus for implementing wavelet filters in a digital system |
10/10/2001 | EP1142111A1 Low-power programmable digital filter |
10/10/2001 | EP1142102A1 Sequential-acquisition, multi-band, multi-channel, matched filter |
10/09/2001 | US6301596 Partial sum filter and method therefore |
10/09/2001 | US6301595 Digital filter |
10/09/2001 | US6300776 Method and device for discrete-time reactance measurement |
10/09/2001 | US6300553 Pitch shifter |
10/09/2001 | CA2245288C Filter structure and method |
10/04/2001 | WO2001073947A1 Sample rate conversion method and apparatus |
10/04/2001 | US20010026601 Digital filter and refrence signal cancelling device and method using the same |
10/04/2001 | EP1138117A1 Real-time technique for reducing the settling time of a high pass filter |