Patents
Sitemap › H03 - Basic electronic circuitry › H03H - Impedance networks, e.g. resonant circuits; Resonators › H03H 17 - Networks using digital techniques
Patents for H03H 17 - Networks using digital techniques (9,654)
04/2003
04/16/2003CN1411628A Circuit arrangement and method for offset compensation of signal
04/16/2003CN1411165A Improved infrared ray and ultrasonic wave receiver
04/16/2003CN1106074C Decimation method and decimation filter
04/15/2003US6549051 Synchronous delay generator
04/10/2003WO2002097986A3 Reconfigurable digital filter having multiple filtering modes
04/10/2003US20030069911 Filtering method and filter
04/10/2003US20030067973 Block interpolation filter structure using lookup table
04/10/2003US20030067406 Waveform shaping circuit
04/09/2003EP1300947A1 Digital Nyquist filter
04/09/2003CN1409822A Analysing signals
04/08/2003US6546408 Sinc filter using twisting symmetry
04/08/2003US6546407 Reduced computation digital filter
04/08/2003US6546061 Signal transformation method and apparatus
04/08/2003US6545561 Method to find a value within a range using weighted subranges
04/08/2003US6545560 Method to find a value within a range using weighted subranges
04/03/2003WO2003028327A2 Efficient methods for filtering to avoid inter-symbol interference and processing digital signals having large frequency guard bands
04/03/2003WO2003028213A1 Non-uniform filter bank implementation
04/03/2003US20030065693 Digital filter realization
04/03/2003US20030065463 Digital sample sequence conversion device
04/02/2003EP1298799A1 Digital filter realization
04/02/2003EP1297627A1 Interpolation filter and method for digitally interpolating a digital signal
04/02/2003EP1297626A1 Sample rate conversion method and apparatus
04/02/2003CN1408143A Simplified digital FIR filter for direct sequence spread spectrum communication system
04/02/2003CN1407720A Variable-sample rate recursive digital filter
04/01/2003US6542914 Method and apparatus for increasing bandwidth in sampled systems
04/01/2003US6542100 Apparatus and method for filtering a signal which represents a digital data stream
04/01/2003US6542094 Sample rate converters with minimal conversion error and analog to digital and digital to analog converters using the same
04/01/2003US6542025 Power supply pump circuit for a microcontroller
03/2003
03/27/2003US20030061251 Harmonic-series filter
03/27/2003US20030058976 Direct conversion radio receiving system using digital signal processing for channel filtering and down conversion to base band
03/27/2003US20030058975 Efficient methods for filtering to avoid inter-symbol interference and processing digital signals having large frequency guard bands
03/26/2003EP1296455A1 Memory-efficient realization of a digital filter
03/26/2003EP1295448A1 Channel equalizer
03/26/2003EP1295390A1 Universal sampling rate converter for digital audio frequencies
03/26/2003CN1406413A Apparatus for splitting the frequency band of an input signal
03/26/2003CN1104140C Reversible wavelet transform and embedded codestream manipulation
03/25/2003US6539048 Ring matched filter for synchronizing to a spreading code
03/20/2003WO2003023961A1 Sound quality adjusting device and filter device used therefor, sound quality adjusting method, and filter designing method
03/20/2003WO2003023960A1 Digital filter and its designing method
03/20/2003WO2003023959A1 A harmonic-series filter
03/20/2003WO2002069491A8 Method for measuring system clock signal frequency variations in digital processing systems
03/20/2003US20030055855 Method and system for efficient and accurate filtering and interpolation
03/20/2003US20030054591 Semiconductor device, and method of manufacturing the semiconductor device
03/20/2003US20030053558 Digital down converter
03/20/2003US20030052745 Method to find a value within a range using weighted subranges
03/20/2003US20030052713 Programmable logic device including multipliers and configurations thereof to reduce resource utilization
03/19/2003EP1294094A2 Programmable logic device including multipliers and configurations thereof to reduce resource utilization
03/19/2003CN1404589A Wave digital filter
03/19/2003CN1404234A Training reference signal and its receiving and processing method
03/18/2003US6535833 Method and apparatus for filtering measurements used in a generalized positioning system
03/13/2003WO2003021813A1 Radio apparatus, method for receiving its signal, method for measuring its filter coefficient, and program for measuring its filter coefficient
03/13/2003US20030048129 Time varying filter with zero and/or pole migration
03/12/2003EP1290791A1 Digital interpolation filter
03/11/2003US6532483 Filter for time division multiplex filtering of a plurality of data trains, and operating methods therefor
03/11/2003US6532441 Parallel oversampled decimator filter
03/11/2003US6532273 Efficient polyphase decimation filter
03/11/2003US6531970 Digital sample rate converters having matched group delay
03/11/2003US6531969 Resampling system and apparatus
03/11/2003US6531906 Delay systems and methods using a variable delay SINC filter
03/11/2003CA2286051C Filterbank structure and method for filtering and separating an information signal into different bands, particularly for audio signals in hearing aids
03/06/2003WO2003019786A2 Digital down converter
03/06/2003US20030044089 Image processing apparatus capable of interpolating error data
03/06/2003CA2457338A1 Digital down converter
03/05/2003EP1289143A2 Variable sample rate recursive digital filter
03/05/2003EP1289142A1 Digital signal filtering
02/2003
02/27/2003WO2003017484A1 Filter for digital signals and filtering method
02/27/2003WO2002067422A3 N dimensional, non-linear, static, adaptive, digital filter design using d scale non-uniform sampling
02/27/2003WO2002056468A3 Method and system for efficient and accurate filtering and interpolation
02/27/2003WO2002051003A3 Generating two signals having a mutual phase difference of 90°
02/27/2003US20030039325 Synchronous detection method and device, and sensor signal detector
02/26/2003EP1286510A1 Transmit filter using a reference clock that is no integer multiple of the symbol clock
02/26/2003EP1286466A1 Matched filter
02/26/2003CN1399412A Device and method for controlling digital filter of radio emitter
02/26/2003CN1102305C Metched filter circuit used for frequency expansion communication
02/25/2003US6526429 Method for designing all pass digital filters
02/25/2003US6526110 Embedded RAM based digital signal processor
02/25/2003US6525593 Method and apparatus for local and global power management in a programmable analog circuit
02/25/2003US6525519 Amplitude detecting circuit
02/20/2003WO2003015292A2 Digital equalization process and mechanism
02/20/2003WO2003015275A1 Sub-band adaptive signal processing in an oversampled filterbank
02/20/2003WO2003015270A2 Method for determining filtering coefficients of a modulated filter bank, prototype filter, modulated filter bank, terminal and corresponding uses
02/20/2003WO2003015269A2 Method and circuit arrangement for filtering signals
02/20/2003WO2003014961A2 Methods for efficient filtering of data
02/20/2003WO2002060056A3 Low-order hdsl2 transmit filter
02/20/2003US20030037083 Fast-settling digital filter and method for analog-to-digital converters
02/20/2003US20030037082 Method and apparatus for jointly optimizing linear signal processing filters with subband filters
02/20/2003US20030035402 Matched filter
02/19/2003CN1398092A Frequency-shift keying/Gauss frequency-shift keying signal receiver and its receiving method
02/18/2003US6523051 Digital signal transformation device and method
02/18/2003US6522747 Single-sided subband filters
02/18/2003US6522702 Radio data communication terminal
02/18/2003US6522275 Method and apparatus for sample rate conversion for use in an analog to digital converter
02/13/2003US20030033337 Digital filter circuit
02/13/2003US20030033336 Methods for efficient filtering of data
02/13/2003US20030031281 Variable sample rate recursive digital filter
02/12/2003CN1397115A 模拟滤波器 Analog filter
02/12/2003CN1101617C Sampling rate converting method and apparatus
02/11/2003US6519577 Digital signal filter using weightless neural techniques
02/11/2003US6519496 Feedback controller, digital filter device, and storage device
02/11/2003US6519342 Method and apparatus for filtering an audio signal
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