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)
11/1995
11/30/1995DE4418164A1 Digital high- and low-pass filter
11/29/1995EP0663085A4 Method and apparatus for reduced-complexity viterbi-type sequence detectors.
11/29/1995CN1112751A Method and apparatus for digitally processing and filtering signals in industrial control applications
11/28/1995US5471509 Universal matched filter
11/28/1995US5471501 Enhanced digital communications receiver using channel impulse estimates
11/28/1995US5471411 Interpolation filter with reduced set of filter coefficients
11/28/1995CA2055847C Decision feedback equalizer
11/23/1995WO1995031860A1 Digital-to-digital conversion using nonuniform sample rates
11/22/1995EP0660958A4 Sampled-data filter with low delay.
11/21/1995US5469517 Motion compensation circuit
11/21/1995US5469510 Arbitration adjustment for acoustic reproduction systems
11/20/1995CA2149482A1 Digital high-pass filter having baseline restoration means
11/18/1995CA2063165A1 Ring laser gyroscope enhanced resolution system
11/14/1995US5467370 Method and apparatus for an adaptive three tap transversal equalizer for partial-response signaling
11/09/1995WO1995030223A1 A pitch post-filter
11/07/1995US5465227 Real time auto-correlation filter method and apparatus
11/07/1995US5465065 Coupled to a transmitting device
11/02/1995WO1995029449A1 Dynamic digital filter using neural networks
11/02/1995EP0679298A1 Signal processing system
10/1995
10/31/1995US5463569 Decimation filter using a zero-fill circuit for providing a selectable decimation ratio
10/31/1995US5463346 Fast response low-pass filter
10/26/1995WO1995028774A1 Determining echo return loss in echo cancelling arrangements
10/26/1995DE4444870C1 Demodulator for complex-valued vestigial sideband signal
10/26/1995DE4414092A1 CSD code digital filter processor with variable order and precision
10/25/1995EP0679007A1 Sound modification for use in simultaneous voice and data communications
10/24/1995US5461641 Decimation filter for a sigma-delta converter and A/D converter using the same
10/24/1995US5461612 Drop-and-add multiplexer for converting and processing a frequency multiplex signal
10/24/1995US5461604 PCM digital audio signal playback apparatus
10/24/1995US5461582 Filter for 2B1Q signals
10/19/1995WO1995028045A1 Wideband fft channelizer
10/19/1995DE4412610A1 2-Dimensional matrix image information filtering system
10/19/1995DE19514069A1 Multistage digital filter structure with recirculation multiplexer
10/18/1995EP0677928A1 Process and device for the implementation of the Viterbi algorithm using a metric memory with reduced bandwidth (longer cycle access time)
10/18/1995EP0677922A2 Fast response low-pass filter
10/18/1995CA2146292A1 Fast response low-pass filter
10/17/1995US5459846 Computer architecture system having an imporved memory
10/17/1995US5459520 Electronic camera with over-sampling filter and method for over-sampling and interpolating electronic camera image data
10/12/1995CA2146579A1 Received signal processing device, particularly for a mobile digital radiocommunication system
10/11/1995EP0676869A1 Reception processing apparatus with switchable decision block for reduction of power consumption
10/11/1995EP0676744A1 Estimation of excitation parameters
10/10/1995US5457719 All digital on-the-fly time delay calibrator
10/10/1995US5457718 Compact phase recovery scheme using digital circuits
10/10/1995US5457456 Data converter with programmable decimation or interpolation factor
10/05/1995CA2143484A1 Sound modification for use in simultaneous voice and data communications
10/04/1995EP0675622A2 Process and system for transferring vector signal with precoding for signal power reduction
10/03/1995US5455783 Subsampling filter comprising two filters in succession
10/03/1995US5455782 Decimation filter and method
09/1995
09/27/1995EP0674393A1 Modulation method, recording method, reproducing method, recording and reproducing apparatus, recording and reproducing method, and reproducing apparatus
09/27/1995EP0674257A1 Apparatus and method for synthesizing a sinusoidal signal
09/26/1995US5453741 Sampling frequency converter
09/21/1995WO1995025414A1 Frequency transpositional hearing aid with digital and single sideband modulation
09/21/1995WO1995025382A1 Noise cancellation system and method
09/20/1995EP0673114A1 Filtering method with ameliorated noise characteristics for a series of digital values and circuit for implementing the method
09/19/1995US5451944 Sampling frequency converter by linear interpolation
09/19/1995CA2052600C Adaptive bandwidth moving average filter
09/14/1995WO1995024768A1 Two-stage decimation filter
09/13/1995EP0671737A2 Method and apparatus of reproducing digital data
09/13/1995EP0671010A1 Method for measuring frequency modulation rate characteristics for a swept frequency signal.
09/12/1995US5450494 Automatic volume controlling apparatus
09/12/1995US5450445 Method and arrangement of estimating data sequences transmitted using viterbi algorithm
09/12/1995US5450350 Filter device and electronic musical instrument using the filter device
09/12/1995US5450083 For use in an oversampled analog-to-digital converter system
09/06/1995EP0670639A1 Reduced complexity MLSE receiver using modified tap weights and symbol derotation
09/05/1995US5448590 Equalization technique for compensating for degradation to the transmission of digitally modulated signals
09/05/1995US5448507 Reduced logic correlator
08/1995
08/30/1995EP0669058A1 Programmable noise bandwidth reduction by means of digital averaging
08/29/1995US5446917 Programmable length decimation filter as for sigma-delta modulators
08/29/1995US5446398 Sampling frequency converter
08/24/1995WO1995022797A1 Amplitude adaptive filter
08/24/1995WO1995017792A3 Filter device comprising a recursive filter unit, method of filtering, and transmission system comprising such a filter device
08/24/1995DE4444203C1 Digital filtering of band-pass signals with phase-quadrature mixing
08/22/1995US5444741 Filtering method and device for reducing digital audio signal pre-echoes
08/22/1995US5444739 Equalizer for data receiver apparatus
08/22/1995CA2051854C Computing method of floating-point represented data
08/17/1995DE4423224C1 Sampling rate conversion for use with video signal decoding
08/16/1995EP0667066A1 Echo compensation device.
08/15/1995US5442130 Musical tone synthesizing apparatus using comb filter
08/09/1995EP0666650A2 Method for the fast decoding of the output signals of sigma delta modulators
08/08/1995US5440641 Active noise cancellation system
08/08/1995US5440593 Combined aligner blender
08/08/1995US5440503 Digital filtering circuit operable as a three-stage moving average filter
08/03/1995WO1995020841A1 Adaptative feedforward and feedback control system
08/03/1995WO1995020812A1 Tracking filter for periodic signals
08/03/1995DE4402632A1 Non-recursive polyphase filter network
08/02/1995EP0665661A2 Digital signal processing apparatus and method and dither signal generating apparatus
08/02/1995EP0665546A2 Sampling frequency converting device and memory address control device
08/01/1995US5438532 Digital filter for use in synthesizing filter or a separation filter
07/1995
07/26/1995EP0664612A1 Noise filter
07/26/1995EP0664187A1 Grinding tape and method of manufacturing the same
07/25/1995US5436859 Method to reduce the power consumation of a digital filter bank analyzer reducing the number of multiplications
07/25/1995US5436858 Decimation circuit and method for filtering quantized signals while providing phase angle correction with a substantially linear phase response
07/25/1995CA1336454C Vector adaptive predictive coder for speech and audio
07/20/1995WO1995019676A1 Higher order digital phase loop filter
07/20/1995WO1995017708A3 Calculation of a scalar product in a direct-type fir filter
07/20/1995DE4437157C1 Improving signal=to=noise ratio in digital signal processing
07/19/1995EP0663741A2 Adaptive digital audio encoding system
07/19/1995EP0663118A1 Asynchronous digital sample rate converter
07/19/1995EP0663085A1 Method and apparatus for reduced-complexity viterbi-type sequence detectors
07/18/1995US5434947 Method for generating a spectral noise weighting filter for use in a speech coder
07/18/1995US5434773 Method and facility for the identification of dynamic characteristic quantities
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