| Patents for H03H 17 - Networks using digital techniques (9,654) |
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| 10/13/1987 | US4700323 Digital lattice filter with multiplexed full adder |
| 10/13/1987 | CA1228144A1 Radar velocity sensor |
| 10/08/1987 | WO1987006075A1 Digital filter bank |
| 10/07/1987 | EP0240056A1 Adaptive filter for producing and echo cancellation signal in a transceiver system for duplex digital communication through one single pair of conductors |
| 10/07/1987 | EP0240055A1 Arrangement for compensating for non-linear distortion in an input signal to be digitized and an echo cancelling system comprising such an arrangement |
| 10/07/1987 | EP0239696A2 Linearity correcting control circuit for tunable delay line |
| 10/06/1987 | US4698680 Digital correlation apparatus as for a television deghosting system |
| 09/24/1987 | WO1987005421A3 Optimal parametric signal processor with lattice basic cell |
| 09/23/1987 | EP0237590A1 Control circuit for controlling two signals out of phase by about 90o |
| 09/22/1987 | US4696059 Reflex optoelectronic switching matrix |
| 09/22/1987 | US4695970 Linear predictive coding technique with interleaved sequence digital lattice filter |
| 09/22/1987 | US4695969 Equalizer with improved performance |
| 09/16/1987 | EP0237286A2 An ultrasonic system |
| 09/16/1987 | EP0236956A2 Digital-compensation circuit of a known interfering signal |
| 09/15/1987 | US4694451 Adaptive digital filter |
| 09/15/1987 | US4694416 VLSI programmable digital signal processor |
| 09/15/1987 | US4694415 Adaptive digital filter for analog input signals |
| 09/15/1987 | US4694414 Digital delay interpolation filter with amplitude and phase compensation |
| 09/15/1987 | US4694413 Compact-structure input-weighted multitap digital filters |
| 09/11/1987 | WO1987005422A2 Optimal parametric signal processor |
| 09/11/1987 | WO1987005421A2 Optimal parametric signal processor with lattice basic cell |
| 09/09/1987 | EP0235791A2 Digital phase shifter |
| 09/09/1987 | EP0235264A1 Digital radio frequency receiver |
| 09/02/1987 | EP0234452A1 Digital circuit arrangement for sampling rate conversion and signal filtration, and method for making it |
| 09/01/1987 | US4691293 High frequency, wide range FIR filter |
| 09/01/1987 | US4691292 System for digital multiband filtering |
| 08/27/1987 | DE3605927A1 Digital interpolator |
| 08/27/1987 | DE3605926A1 Filter arrangement |
| 08/25/1987 | US4689759 Process and installation for the analysis and retrieval of a sampling and interpolation signal |
| 08/18/1987 | CA1225745A1 Method and system for analysing and reproducing signals by means of sampling and interpolation |
| 08/11/1987 | US4686483 Digital filter circuit |
| 08/05/1987 | EP0230752A2 Two-dimensional finite impulse response filter arrangements |
| 08/04/1987 | US4684922 Temporal averaging using a voltage mode D/A converter |
| 07/28/1987 | CA1224878A1 Apparatus and method for suppressing side lobe response in a digitally sampled system |
| 07/28/1987 | CA1224876A1 Data compression system and method for audio signals |
| 07/21/1987 | US4682301 Digital filter for processing two-dimensional digital image |
| 07/21/1987 | US4682230 Adaptive median filter system |
| 07/09/1987 | EP0131034A4 Method and apparatus for evaluating rhythmic oscillations in aperiodic physiological response systems. |
| 07/07/1987 | US4679001 For suppressing energy at time varying frequencies |
| 07/01/1987 | EP0227172A1 Phase-locked loop coefficient generator for a filter arrangement having a non-rational ratio between input and output sampling frequencies |
| 06/30/1987 | US4677439 Delay device and the use thereof in the decoding device of distance measuring equipment |
| 06/30/1987 | US4677395 Digital phase shifter |
| 06/09/1987 | US4672567 Median filter for reducing data error in distance measuring equipment |
| 05/27/1987 | CN86105452A Interpolator/decimator filter structure and a digital filter therefor |
| 05/26/1987 | CA1222293A1 Automatic linear compression circuit |
| 05/20/1987 | EP0222612A2 Simultaneous filtering and background correction of chromatographic data |
| 05/20/1987 | EP0222428A1 Adaptive filter |
| 05/20/1987 | CN86106494A Adaptive resistance-trap filter |
| 05/19/1987 | US4667298 Method and apparatus for filtering high data rate signals |
| 05/13/1987 | EP0221617A2 Low-pass digital filter |
| 05/06/1987 | EP0220563A1 Adaptive noise suppressor |
| 04/29/1987 | CN86105230A Interpolator/decimator filter structure and a notch filter therefor |
| 04/28/1987 | US4661982 Digital graphic equalizer |
| 04/28/1987 | US4661816 Adaptive radar signal processor |
| 04/28/1987 | EP0207085A4 Signal to noise ratio enhancement using baseband signals in an fm television system. |
| 04/28/1987 | EP0205554A4 Interlaced digital video input filter/decimator and/or expander/interpolator filter. |
| 04/23/1987 | DE3537654A1 Method for reducing reception noise during changeover operations in receivers |
| 04/22/1987 | EP0219098A1 Image signal regeneration device for an ultrasound image system and image device |
| 04/22/1987 | EP0218861A2 Adaptive stop-notch filter |
| 04/15/1987 | EP0218396A2 Two-dimensional finite impulse response filters |
| 04/15/1987 | EP0218241A2 Bi-dimensional comb filter |
| 04/14/1987 | US4658426 Adaptive noise suppressor |
| 04/14/1987 | US4658368 Peak position detector |
| 04/14/1987 | US4658255 Adaptive radar signal processing apparatus |
| 04/08/1987 | EP0216803A1 Digital zero-if selectivity section. |
| 04/01/1987 | EP0216580A2 Infinite impulse response filters |
| 03/26/1987 | DE3532857A1 Non-recursive digital filter |
| 03/24/1987 | US4653016 Digital filters for remote control receivers |
| 03/24/1987 | US4652907 Apparatus for adaptively controlling a video signal recursive filter |
| 03/24/1987 | CA1219648A1 Adaptive echo canceller |
| 03/18/1987 | EP0214776A2 Low frequency digital notch filter |
| 03/12/1987 | WO1987001531A1 Digital radio frequency receiver |
| 03/11/1987 | EP0213853A2 Interpolator/Decimator filter structure and a notch filter therefor |
| 03/10/1987 | US4649553 Microwave digital phase-shifter apparatus and method for construction |
| 03/10/1987 | US4649507 Segmented transversal filter |
| 03/04/1987 | EP0212950A2 Interpolator/decimator filter structure and a digital filter therefor |
| 03/04/1987 | EP0212307A2 Ripple control receiver |
| 02/25/1987 | CN86105367A 低频数字陷波滤波器 Low-frequency digital notch filter |
| 02/24/1987 | US4646327 Waveform shaping apparatus |
| 02/24/1987 | US4646138 Video signal recursive filter with luma/chroma separation |
| 02/24/1987 | CA1218423A1 Integrated digital circuit and a method of manufacturing a digital filter arrangement as an integrated circuit |
| 02/18/1987 | CN86104912A Pulse-controlling receiver |
| 02/17/1987 | US4644488 Pipeline active filter utilizing a booth type multiplier |
| 02/17/1987 | US4644424 Equalizer used for magnetic storage device |
| 02/10/1987 | US4642689 Increasing the resolution of a digitized, time-dependent signal |
| 02/04/1987 | CN85108578A Switched capacitor finite impulse response filter |
| 02/03/1987 | US4641180 Electronic circuit apparatus for separating the luminance and color information of a color television signal |
| 01/28/1987 | EP0209931A2 Equaliser with adjustable band filters and a digital filter suitable for use in the equaliser |
| 01/28/1987 | EP0209928A1 Demodulator for a frequency-modulated digital signal |
| 01/27/1987 | US4639935 Apparatus for correcting frequency-dependent attenuation of the transmitting medium in signal transmission |
| 01/21/1987 | EP0209049A2 Processing circuit capable of raising throughput of accumulation |
| 01/21/1987 | EP0208982A1 Digital branch filter for a data receiver |
| 01/13/1987 | US4636972 Method and apparatus for digital filtering |
| 01/13/1987 | US4636837 Time base conversion apparatus |
| 01/07/1987 | EP0207085A1 Signal to noise ratio enhancement using baseband signals in an fm television system. |
| 01/07/1987 | CN86104535A 误差检测电路 Error detecting circuit |
| 01/06/1987 | US4635276 Asynchronous and non-data decision directed equalizer adjustment |
| 01/06/1987 | US4634960 Automatic linear compression circuit |
| 01/02/1987 | DE3522413A1 Digital recursive filter |
| 01/02/1987 | DE3522409A1 Digital recursive filter |