| Patents for H03H 17 - Networks using digital techniques (9,654) |
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| 05/01/2001 | US6226662 Signal interpolation and decimation exploiting filter symmetry |
| 05/01/2001 | US6226661 Generation and application of sample rate conversion ratios using distributed jitter |
| 05/01/2001 | CA2215358C Signal quality determining device and method |
| 05/01/2001 | CA2208942C Sub-band echo canceller using optimum wavelet packets and cross-band cancellation |
| 04/24/2001 | US6222941 Apparatus for compression using reversible embedded wavelets |
| 04/24/2001 | CA2090297C Adaptive noise reduction circuit for a sound reproduction system |
| 04/19/2001 | WO2001028120A1 Ring matched filter for synchronizing to a spreading code |
| 04/19/2001 | WO2001028118A1 Matched filter and spread spectrum receiver |
| 04/19/2001 | WO2001028092A1 Method and apparatus for interpolating digital signal |
| 04/19/2001 | WO2001028091A1 Digital filter combination |
| 04/19/2001 | CA2385116A1 Matched filter and spread spectrum receiver |
| 04/18/2001 | EP1092269A2 Method for digital timing recovery and selective filtering |
| 04/17/2001 | US6219683 Radially distributed transverse filter |
| 04/17/2001 | US6219392 Filter device and method of acquiring filter coefficients |
| 04/17/2001 | CA2224899C Receiver with analog and digital channel selectivity |
| 04/15/2001 | CA2287789A1 Dynamic filter centering |
| 04/12/2001 | WO2001026316A1 Demodulator for processing digital signal |
| 04/12/2001 | WO2001026224A1 A simplified digital fir filter for direct sequence spread spectrum communication systems |
| 04/12/2001 | WO2001025731A2 A fast-responding electronic balance using a multi-filter |
| 04/11/2001 | CN1291288A Digital filter pre-charging for transient spectroscopies |
| 04/11/2001 | CN1291019A Asending sampling filter with one bit amplifier for multiple expansion data stream |
| 04/10/2001 | US6215828 Signal transformation method and apparatus |
| 04/10/2001 | US6215429 Distributed gain for audio codec |
| 04/10/2001 | US6215423 Method and system for asynchronous sample rate conversion using a noise-shaped numerically control oscillator |
| 04/04/2001 | EP1089507A2 Method for the calculation of the coefficients of a polyphase FIR filter |
| 04/04/2001 | EP1089432A2 Upsampling filter having one-bit multipliers for multiple spread-data streams |
| 04/03/2001 | US6212540 Filter circuit |
| 04/03/2001 | CA2167940C Method and apparatus for echo cancelling with double-talk immunity |
| 03/29/2001 | WO2001022582A1 Fir filter utilizing programmable shifter |
| 03/28/2001 | EP1087523A2 Digital graphic equalizer control system and method |
| 03/27/2001 | US6209014 Look-ahead LMS technique |
| 03/27/2001 | US6209013 Efficient implementation of a filter |
| 03/27/2001 | US6208764 Rank filter using a linked-list to link elements in a memory array in numerical order |
| 03/27/2001 | US6208687 Filter switching method |
| 03/27/2001 | US6208685 Matched filter |
| 03/27/2001 | US6208671 Asynchronous sample rate converter |
| 03/27/2001 | US6208481 Gain and phase constrained adaptive equalizing filter in a sampled amplitude read channel for magnetic recording |
| 03/27/2001 | CA2225985C Spectrum feature parameter extracting system based on frequency weight estimation function |
| 03/22/2001 | WO2001019304A1 Cochlear implant |
| 03/21/2001 | EP1085427A2 Embedded RAM based digital signal processor |
| 03/21/2001 | EP1085334A2 Device and method for testing a digital electronic filter |
| 03/21/2001 | CN2424577Y Super-broadbard GaAs one-chip digital simulation phase shifter |
| 03/21/2001 | CN1288557A Decoding method and systme comprising adaptive postfilter |
| 03/20/2001 | CA2187480C Co-channel interference reduction |
| 03/15/2001 | WO2001018961A1 Digital filter design method and apparatus for noise suppression by spectral substraction |
| 03/15/2001 | WO2001018960A1 Digital filter design |
| 03/15/2001 | DE10009082A1 Waveform reproducing apparatus has waveform reproducing unit that generates output waveform data which is temporally compressed or expanded version of original waveform data |
| 03/14/2001 | EP1082813A1 Digital-to-analog convertor |
| 03/13/2001 | US6202074 Multiplierless digital filtering |
| 03/13/2001 | US6201843 Rapid acquisition dispersive channel receiver integrated circuit |
| 03/13/2001 | US6201175 Waveform reproduction apparatus |
| 03/08/2001 | WO2001017108A1 Filter unit comprising a core filter, decimator and interpolator |
| 03/08/2001 | WO2001016934A1 Digital audio signal processing apparatus comprising a delay line |
| 03/08/2001 | WO2001016620A1 Automatic pole-zero adjustment circuit for an ionizing radiation spectroscopy system and method |
| 03/08/2001 | DE19935840A1 Schaltungsanordnung zur Abtastratenumsetzung zeitdiskreter Signale Circuit arrangement for sampling rate conversion discrete-time signals |
| 03/07/2001 | EP1079758A1 Forward-backward channel interpolator |
| 03/07/2001 | EP0793875B1 Transmission system using time dependent filter banks |
| 03/07/2001 | CN1286535A Digital echo eliminator |
| 03/07/2001 | CN1062963C Encoder/decoder for producing high-quality audio signals |
| 03/06/2001 | US6199085 Differentiator in comb filter |
| 03/01/2001 | WO2001015320A1 Arrangement and method for simple interference cancelling |
| 03/01/2001 | DE19940926A1 Filtereinrichtung mit Kernfilter, Dezimator und Interpolator Filter means having core filter decimator and interpolator |
| 03/01/2001 | DE19934296A1 Integrated digital circuit test arrangement esp. for digital electronic filter |
| 03/01/2001 | DE10037651A1 Method and arrangement for spread spectrum filtering by processing input signal along two paths and adding or subtracting resultant part values |
| 02/28/2001 | EP1079575A2 Conversion of PCM to A DC-centered VSB signal |
| 02/28/2001 | EP1079527A2 SIN(X)/X compensation circuitry |
| 02/28/2001 | EP1079523A2 Switched bandwidth digital filters with slewing |
| 02/28/2001 | CN1285975A Decimation filtering apparatus and method |
| 02/28/2001 | CN1285688A Pulse code modulation dc centering vestigial sideband converter |
| 02/28/2001 | CN1285687A SIN (X)/X Compensation circuit |
| 02/28/2001 | CN1285685A Wave-carried signal generator for complex modulator |
| 02/27/2001 | US6195465 Method and apparatus for compression using reversible wavelet transforms and an embedded codestream |
| 02/27/2001 | CA2215367C Signal quality determining device and method |
| 02/27/2001 | CA2215366C Signal quality determining device and method |
| 02/22/2001 | WO2001013515A1 Digital filter |
| 02/20/2001 | US6192386 Digital filter, digital signal processing method, and communication apparatus |
| 02/20/2001 | US6191718 Data sampling method and device |
| 02/20/2001 | CA2122652C Half-band filter for a cellular group demultiplexer |
| 02/14/2001 | EP1076415A1 Method and apparatus for sampling frequency conversion |
| 02/14/2001 | EP1075734A1 Nonlinear system, method of design thereof and computer program product |
| 02/14/2001 | CN1062101C Sampler capable of reducing sampling rate and sampling method for digital demodulator |
| 02/13/2001 | US6188803 Image processing device |
| 02/13/2001 | US6188718 Methods and apparatus for reducing cochannel interference in a mixed-rate communication system |
| 02/13/2001 | CA2108103C Method and apparatus for the compression, processing and spectral resolution of electromagnetic and acoustic signals |
| 02/08/2001 | WO2001010024A1 Circuit for converting the scanning rate conversion of chronologically discrete signals |
| 02/08/2001 | WO2001009760A1 Method and apparatus for performing linear filtering in wavelet based domain |
| 02/07/2001 | EP1074089A1 Cascading of up conversion and down conversion |
| 02/07/2001 | EP1074088A1 Method for converting the scanning rate |
| 02/06/2001 | US6185262 Method for suppressing disturbances in a bipolar data stream and a circuit configuration for carrying out the method |
| 02/06/2001 | US6185226 Integrated twisted pair filter with a secure RIC function |
| 02/01/2001 | WO2001008313A1 A low pass digital filter |
| 02/01/2001 | WO2001008306A1 Filtering device |
| 01/31/2001 | EP1072089A1 Audio signal processing method and apparatus |
| 01/31/2001 | CN2417635Y Multiple frequency programmed gallium arsenide, micro-wave, single chip, digital type analog phase transferrer |
| 01/31/2001 | CN1061506C Digital non-lenear pre-emphasis/de-emphasis apparatus |
| 01/30/2001 | US6182103 Finite impluse response bandpass filter |
| 01/30/2001 | US6182101 Method for sampling frequency conversion employing weighted averages |
| 01/30/2001 | US6181733 Digital matched filter |
| 01/25/2001 | WO2001006671A1 Method and device for synchronising mobile telephone receivers in a mobile telephone system |
| 01/25/2001 | DE19933542A1 Verfahren und Vorrichtung zur Synchronisation von Mobilfunkempfängern in einem Mobilfunksystem Method and apparatus for synchronization of mobile radio receivers in a mobile radio system |