| Patents for H03H 19 - Networks using time-varying elements, e.g. n-path filters (1,194) |
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| 04/22/2003 | US6552676 Method and apparatus for power reduction in switched capacitor circuits |
| 03/27/2003 | WO2003025515A1 Demodulation circuit |
| 03/25/2003 | US6538491 Method and circuits for compensating the effect of switch resistance on settling time of high speed switched capacitor circuits |
| 03/19/2003 | EP1294092A2 Method and apparatus for power reduction in switched capacitor circuits |
| 03/18/2003 | US6535724 Receiver portion of a telephone |
| 03/13/2003 | US20030050027 Digitally controlled analog RF filtering in subsampling communication receiver architecture |
| 02/05/2003 | CN1395417A Oscillator and phaselocked loop using the same |
| 01/30/2003 | US20030020555 Switched capacitor circuit |
| 01/22/2003 | CN1099760C Monolithic MOS-SC circuit |
| 01/22/2003 | CN1099757C Matched filter circuit |
| 01/21/2003 | US6509791 Switched capacitor filter circuit |
| 01/21/2003 | US6509790 Switched-capacitor circuits and methods with improved settling time and systems using the same |
| 01/15/2003 | CN1099159C Circuit matched with wave filter |
| 12/18/2002 | CN1385799A Vehicle carried electronic controller |
| 12/11/2002 | EP1171956B1 Hybrid low-pass sigma-delta modulator |
| 12/10/2002 | US6492865 Band pass filter from two filters |
| 11/28/2002 | US20020177422 Subsampling communication receiver architecture with relaxed IFA readout timing |
| 11/28/2002 | US20020177421 Subsampling communication receiver architecture with gain control and RSSI generation |
| 11/27/2002 | EP1260022A1 Band pass filter from two notch filters |
| 11/21/2002 | US20020172170 Spread spectrum demodulation using a subsampling communication receiver architecture |
| 11/21/2002 | DE10201849A1 Fahrzeugeigener elektronischer Controller A vehicle-onboard electronic controller |
| 11/14/2002 | US20020169524 On-vehicle electronic controller |
| 11/14/2002 | US20020167353 Switched capacitor filter circuit |
| 11/12/2002 | CA2255321C Method and device for discrete-time reactance measurement |
| 11/06/2002 | EP1254512A1 Amplifier or filter circuit in switched capacitor circuit logic and method for amplifying or filtering signals |
| 11/05/2002 | US6476647 Method and circuit arrangement for signal processing |
| 10/23/2002 | EP1250759A1 Band pass filter from two filters |
| 10/23/2002 | EP1250758A1 Band pass filter with improved group delay |
| 10/15/2002 | US6466146 Hybrid low-pass sigma-delta modulator |
| 09/25/2002 | EP1243072A1 Switched capacitor filter with integrated voltage multiplier |
| 09/19/2002 | DE10040422C2 Schaltungsanordnung und Verfahren in switched operational amplifier Technik Circuit arrangement and method in switched operational amplifier technique |
| 09/17/2002 | US6452443 Stable, low-noise bimodal audio filter circuit |
| 09/17/2002 | US6452424 Method and apparatus for multiple channel signal processing |
| 09/12/2002 | WO2002071621A2 Hybrid low-pass sigma-delta modulator |
| 09/03/2002 | US6445321 Hybrid low-pass sigma-delta modulator |
| 08/27/2002 | US6441762 Circuit device for cancelling out spurious pulses in a switched capacitance low-pass filter, and a filter incorporating it |
| 08/27/2002 | US6441640 CMOS-microprocessor chip and package anti-resonance pass-band shunt apparatus |
| 08/21/2002 | EP1232632A1 Band pass and notch filters for echo reduction with less phase distortion |
| 08/20/2002 | US6438366 Method and circuit for sampling a signal at high sampling frequency |
| 08/08/2002 | US20020108006 Microcontroller programmable system on a chip |
| 07/31/2002 | EP1227589A2 Replica network for linearizig switched capacitor circuits |
| 07/25/2002 | US20020098823 Method and circuit for sampling a signal at high sampling frequency |
| 07/24/2002 | EP1225696A2 Analog signal processor |
| 07/23/2002 | US6424208 Switched capacitor filter with integrated voltage multiplier |
| 07/16/2002 | US6420927 Filter and hold circuit utilizing a charge/discharge current |
| 07/11/2002 | US20020089366 Replica network for linearizing switched capacitor circuits |
| 07/11/2002 | US20020089347 CMOS-microprocessor chip and package anti-resonance pass-band shunt apparatus |
| 07/03/2002 | EP1220108A2 Programmable circuit |
| 07/03/2002 | EP1219087A1 Method and apparatus for multiple channel signal processing |
| 07/02/2002 | US6414541 Switched capacitors |
| 06/26/2002 | CN1086892C Oscillator and phase-locked loop employing same |
| 06/25/2002 | US6411717 Switched capacitor filter with a neutral bypass setting |
| 06/11/2002 | US6404279 Band pass filter with improved group delay |
| 06/06/2002 | WO2001026339A8 Band pass and notch filters for echo reduction with less phase distortion |
| 05/30/2002 | WO2002043247A1 Method and system for adjusting the step clock of a delta-sigma transformer and/or switched capacitor filter |
| 05/28/2002 | CA2039424C Integrated circuit for analog system |
| 05/02/2002 | EP1202184A2 Programming methodology and architecture for an analog programmable system on a chip |
| 05/01/2002 | CN1084025C Imitating first-in first-out memory and switch device |
| 04/17/2002 | CN1345483A Hybrid low-pass sigma-delta moduator |
| 04/11/2002 | US20020041204 Variable clock configuration for switched op-amp circuits |
| 03/26/2002 | US6362761 Efficient switched capacitor integrator |
| 03/14/2002 | US20020030617 Attenuating undesired frequencies while sampling a communication signal |
| 03/13/2002 | EP1187312A2 Variable clock scheme for switched opamp circuits |
| 03/07/2002 | DE10040422A1 Schaltungsanordnung und Verfahren in switched operational amplifier Technik Circuit arrangement and method in switched operational amplifier technique |
| 03/06/2002 | EP1183777A1 Band-pass filter with carrier frequency reduction |
| 02/26/2002 | US6351506 Switched capacitor filter circuit having reduced offsets and providing offset compensation when used in a closed feedback loop |
| 01/30/2002 | CN1078772C Piezoelectric resonator and electronic element using it |
| 01/16/2002 | EP1171956A1 Hybrid low-pass sigma-delta modulator |
| 01/16/2002 | EP0799527B1 Differential switched capacitor filtering |
| 01/03/2002 | US20020000927 A circuit device for cancelling out spurious pulses in a switched capacitance low-pass filter, and a filter incorporating it |
| 01/03/2002 | US20020000874 Band pass filter with improved group delay |
| 12/19/2001 | EP1164707A2 Attentuating undesired frequencies while sampling a communication signal |
| 11/28/2001 | CN1324194A Attenuation of non-needed frequency when sampling communication signals |
| 11/20/2001 | US6320459 Notch filter implemented using analog sampling |
| 11/06/2001 | US6313668 Passive sample and hold in an active switched capacitor circuit |
| 10/10/2001 | EP1142127A1 Circuits, systems and methods for processing data in a one-bit format |
| 10/09/2001 | US6300776 Method and device for discrete-time reactance measurement |
| 10/04/2001 | EP1139563A2 Analog fifo memory |
| 10/03/2001 | CN1072359C Method and apparatus for detecting input signal level |
| 09/12/2001 | EP1131889A1 Droop-free quasi-continuous reconstruction filter interface |
| 09/05/2001 | EP1130785A2 Signal clipping circuit for switched capacitor sigma delta analog to digital converters |
| 08/02/2001 | WO2001056157A1 Band pass filter from two filters |
| 08/02/2001 | WO2001056156A1 Band pass filter with improved group delay |
| 07/31/2001 | US6268815 High performance switched-capacitor filter for oversampling sigma-delta digital to analog converters |
| 07/31/2001 | US6268766 Band pass filter from two notch filters |
| 07/26/2001 | WO2001054270A1 Amplifier or filter circuit in switched capacitor circuit logic and method for amplifying or filtering signals |
| 07/26/2001 | US20010009403 Hybrid low-pass sigma-delta modulator |
| 07/24/2001 | US6266689 Complex switched capacitor filter and designing method for such a filter |
| 07/12/2001 | WO2001050602A1 Switched capacitor filter with integrated voltage multiplier |
| 07/12/2001 | CA2395274A1 Switched capacitor filter with integrated voltage multiplier |
| 07/05/2001 | WO2001048924A1 Band pass filter from two notch filters |
| 06/28/2001 | US20010005162 Notch filter implemented using analog sampling |
| 06/19/2001 | US6249240 Switched-capacitor circuitry with reduced loading upon reference voltages |
| 06/07/2001 | US20010002802 Method and circuit arrangement for signal processing |
| 05/16/2001 | CN1295736A Circuit and method for reducing sampling noise |
| 05/08/2001 | US6229354 Method and circuit arrangement for signal processing |
| 04/12/2001 | WO2001026339A1 Band pass and notch filters for echo reduction with less phase distortion |
| 04/10/2001 | US6215431 Droop-free quasi-continuous reconstruction filter interface |
| 04/05/2001 | WO2001024471A1 Method and apparatus for multiple channel signal processing |
| 02/20/2001 | US6191648 Switched-capacitor cosine filter circuit |