Patents for H03H 17 - Networks using digital techniques (9,654)
10/2001
10/04/2001EP0642715B1 Radio receiver with digital signal processing
10/04/2001EP0642714B1 Radio receiver with digital signal processing
10/04/2001DE10009767A1 Interpolations-Filterschaltung Interpolation filter circuit
10/02/2001US6298362 Apparatus and method for equalizer filter units responsive to 5-level inputs signals
10/02/2001US6298361 Signal encoding and decoding system
09/2001
09/27/2001WO2001071931A2 Digital tuner with optimized clock frequency and integrated parallel cic filter and local oscillator
09/27/2001WO2001071874A2 Cvt transient filter
09/27/2001US20010025290 Nonrecursive digital filter and method for calculating the coefficients of the filter
09/27/2001US20010024499 Adaptive filter and echo canceller using the same
09/27/2001US20010024478 Signal receiving circuit and signal receiving method
09/26/2001EP1137231A1 Demodulator for processing digital signal
09/26/2001EP1135855A1 Digital filter with parallel architecture and spread-spectrum signal receiver using same
09/26/2001EP1135853A1 Integrated frequency translation and selectivity with a variety of filter embodiments
09/26/2001EP1025646B1 Methods and devices for encoding audio signals and methods and devices for decoding a bit stream
09/26/2001EP0632947B1 Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlation synchronization
09/25/2001US6295545 Reduction of execution times for convolution operations
09/25/2001US6295508 Automatic pole-zero adjustment circuit for an ionizing radiation spectroscopy system and method
09/25/2001US6295014 System for processing one-bit audio signals
09/20/2001US20010022812 Adaptive audio equalizer apparatus and method of determining filter coefficient
09/20/2001US20010022811 Frequency analysis
09/19/2001EP1134892A1 Digital filter structure
09/19/2001CN1071475C 数字信号处理器 Digital Signal Processor
09/18/2001US6292571 Hearing aid digital filter
09/18/2001US6292510 Automatic equalization method and automatic equalizer
09/13/2001US20010021940 Method of updating reflection coefficients of lattice filter and apparatus for updating such reflection coefficients
09/13/2001US20010021939 Method for selective filtering
09/13/2001US20010021879 Singnal processing device and signal processing method
09/12/2001EP1131887A1 Fir filter utilizing programmable shifter
09/12/2001EP1021863A4 Method and system for a digital filter having improved settling time
09/12/2001EP1010168B1 Accelerated convolution noise elimination
09/12/2001EP0865682B1 Use of single channel fir filter architecture to perform combined/parallel filtering of multiple (quadrature) signals
09/07/2001WO2001065713A1 Irr filter for a cdma receiver
09/07/2001WO2001065692A1 Apparatus for splitting the frequency band of an input signal
09/07/2001WO2001065485A1 Digital filter
09/07/2001CA2713963A1 Method and device for active impedance matching
09/07/2001CA2370723A1 Digital filter
09/06/2001DE10009383A1 Implementation of rank value filter as circuit involves inserting newly arriving data items into data field that is pre-sorted according to magnitude by use of clear and sort technique
09/05/2001EP1130774A2 Method and device for the realisation of rank order filters
09/05/2001EP1130773A1 Time continuous FIR filter to implement a Hilbert transform and corresponding filtering method
09/05/2001EP1130759A1 Motor controller
09/05/2001EP1129523A1 Circuit configuration for quantisation of digital signals and for filtering quantisation noise
09/05/2001CN1311921A Multiplierless digital filtering
09/04/2001US6286019 High efficiency digital filter using sequential multiply and add operations
09/04/2001CA2217839C A windowing technique for blind equalization
08/2001
08/30/2001WO2001063867A1 Receiver
08/30/2001WO2001063464A1 Wave digital filter
08/29/2001EP0845173B1 Circuit arrangement for influencing the frequency response of a digital audio signal
08/29/2001EP0807307B1 A pitch post-filter
08/29/2001EP0707763B1 Reduction of background noise for speech enhancement
08/28/2001US6282042 Data processing apparatus and methods
08/28/2001US6280391 Method and apparatus for removing baseline wander from an egg signal
08/23/2001US20010016001 Arrangement for filtering digital data
08/22/2001EP1126696A2 Device for filtering digital data
08/22/2001EP1126607A2 Improved digital filtering method
08/22/2001EP1125363A1 Apparatus for performing a non-integer sampling rate change in a multichannel polyphase filter
08/22/2001EP1125286A1 Perceptual weighting device and method for efficient coding of wideband signals
08/22/2001EP1125285A1 Periodicity enhancement in decoding wideband signals
08/22/2001EP1125284A1 High frequency content recovering method and device for over-sampled synthesized wideband signal
08/22/2001EP1125276A1 A method and device for adaptive bandwidth pitch search in coding wideband signals
08/22/2001EP1125274A1 Digital audio signal processing apparatus comprising a delay line
08/22/2001CN1309467A Variable gain digital wave filter
08/21/2001US6279021 Digital filters
08/21/2001US6279020 Programmable circuit for realizing a digital filter
08/21/2001US6279019 Decimation filtering apparatus and method
08/16/2001US20010013270 Pitch shifter
08/16/2001EP0970562B1 Fractional delay digital filter
08/16/2001EP0742971B1 Adaptive feedforward and feedback control system
08/15/2001CN1308802A Method for digital timing recovery and selective filtering
08/14/2001US6275836 Interpolation filter and method for switching between integer and fractional interpolation rates
08/14/2001US6275835 Finite impulse response filter and method
08/14/2001US6275545 Matched filter and method of synchronizing operation timing of receiver with phase of desired wave signal
08/14/2001US6275119 Method to find a value within a range using weighted subranges
08/14/2001CA2164026C Subband echo canceler
08/09/2001WO2001058017A2 Fir filter tap architecture for highly dense layout
08/09/2001WO2001057877A1 Optimized sampling rate
08/09/2001US20010012368 Stereophonic sound processing system
08/08/2001EP1122884A1 Filter arrangement with a linear phase characteristic, and method to develop such a filter arrangement
08/08/2001EP1121754A1 Odd-transform fast convolution
08/08/2001EP0831480B1 Data processing apparatus and methods
08/08/2001CN1069476C Method and device for removing double picture with standered symbol represented digital code
08/08/2001CN1069468C Wideband FFT channelizer
08/07/2001US6272509 Filter device
08/07/2001US6271778 High pass filtering with automatic phase equalization
08/07/2001CA2246757C Echo canceler
08/07/2001CA2162413C Optimization of adaptive filter tap settings for subband acoustic echo cancelers in teleconferencing
08/02/2001WO2001056167A2 A multiplierless interpolator for a delta-sigma digital to analog converter
08/02/2001WO2001056157A1 Band pass filter from two filters
08/02/2001WO2001056156A1 Band pass filter with improved group delay
08/02/2001WO2001056154A2 Digital filter
08/02/2001US20010010704 Filter arrangement with a linear phase characteristic, and method to develop such a filter arrangement
08/02/2001CA2333514A1 Filter arrangement with a linear phase characteristic, and method to develop such a filter arrangement
08/01/2001EP1120708A2 Arrangement and method for signal processing and storage
08/01/2001EP1119911A1 Filtering device
08/01/2001EP1119910A1 Area efficient realization of coefficient architecture for bit-serial fir, iir filters and combinational/sequential logic structure with zero latency clock output
08/01/2001EP1119909A1 Area efficient realization of coefficient architecture for bit-serial fir, iir filters and combinational/sequential logic structure with zero latency clock output
08/01/2001EP0818078B1 Digital filter
08/01/2001CN1306693A Non recursive digital filter and method for calculating coefficients of such filter
07/2001
07/31/2001US6269117 System and method for enhancing downsampling operations
07/31/2001US6269115 Linear-phase filter implementation using orthonormal laguerre expansions
07/31/2001US6268766 Band pass filter from two notch filters
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