| Patents for H03H 11 - Networks using active elements (9,098) |
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| 03/17/1994 | DE4308783C1 Information signal transmission circuitry for telephone network - with system module at each end of two=wire subscriber line providing two=wire to four=wire interface |
| 03/15/1994 | US5294841 Method of shifting the phase of an electrical signal and a phase-shifter based on this method |
| 03/08/1994 | US5293514 Integrating filter circuit |
| 03/08/1994 | US5293087 Filter circuit and filter integrated circuit |
| 03/08/1994 | US5293086 Polar leapfrog filter |
| 03/02/1994 | EP0584437A1 Transconductor stage |
| 03/01/1994 | US5291160 Filter arrangement including a non-reversible circuit element, a band-pass filter, and an active circuit |
| 03/01/1994 | US5291123 Precision reference current generator |
| 03/01/1994 | US5291083 Bucket brigade analog delay line with voltage limiting feedback |
| 02/23/1994 | EP0583306A1 Device and method for adjusting a bandpass filter, especially a combiner filter. |
| 02/15/1994 | US5287054 Attenuating voltage follower circuit |
| 02/08/1994 | US5285122 Variable delay device |
| 02/02/1994 | EP0580922A1 RC Filter for low and very low frequency applications |
| 02/02/1994 | EP0580920A1 Integrated capacitance multiplier and RC circuit |
| 02/01/1994 | US5283483 Slimmer circuit technique |
| 01/26/1994 | EP0580269A2 Signal filter |
| 01/26/1994 | EP0579876A1 Frequency tuning system for an OTA-C pair |
| 01/26/1994 | EP0579875A1 Quality factor tuning system |
| 01/25/1994 | US5281931 On-chip self-tuning filter system |
| 01/25/1994 | US5281928 Electronic attenuator |
| 01/05/1994 | DE4220693A1 Circuit for simultaneous transmission of current and voltage - has differential amplifiers and number of impedances, with ratio of specified impedances determining voltage translation ratio. |
| 12/29/1993 | EP0576081A1 Non-integral delay circuit |
| 12/15/1993 | EP0573807A2 Zero power transmission line terminator |
| 12/14/1993 | US5270875 Programmable filter/equalizer for duel speed and density magnetic recording devices |
| 12/14/1993 | US5270667 Impedance matching and bias feed network |
| 11/30/1993 | US5266852 Filter circuit for integrated circuit |
| 11/30/1993 | CA2017927C Second order active filters |
| 11/25/1993 | DE4216603A1 Signal generating circuitry for control of vehicle bodywork suspension - has two resistors representing internal opposed coupling as well as resistors of different values enabling separate adjustment |
| 11/23/1993 | US5264805 For use in an FSK direct conversion system receiver |
| 11/23/1993 | US5264804 Lowpass filter with improved D.C. offset performance |
| 11/17/1993 | CN1078583A Integrated resonant circuit with tremperature compensated quality factor |
| 11/16/1993 | US5263192 Integrated resonant circuit with temperature compensated quality factor |
| 11/16/1993 | US5261280 Tissue signature tracking transceiver |
| 11/16/1993 | CA2017926C Second order active filters |
| 11/02/1993 | US5258718 Nuclear magnetic resonance tomography apparatus |
| 11/02/1993 | US5258716 All-pass filter |
| 11/02/1993 | US5258713 Impedance generator for a telephone line interface circuit |
| 10/28/1993 | WO1993021723A1 Impedance synthesizer for a subscriber line interface circuit |
| 10/26/1993 | US5256991 Broadband microwave active inductor circuit |
| 10/20/1993 | CN1077580A Bandpass filter for a carrier-frequency signal |
| 10/17/1993 | CA2066314A1 Automatic scsi termination |
| 10/14/1993 | WO1993020623A1 Integrated resonant circuit with temperature compensated quality factor |
| 10/14/1993 | CA2133846A1 Integrated resonant circuit with temperature compensated quality factor |
| 10/13/1993 | EP0564934A2 Band press filter for a carrier frequency signal |
| 10/06/1993 | EP0564114A1 Impedance matching and bias feed network |
| 10/06/1993 | EP0563450A1 Device for filtering signals of an antenna and a transceiver with two or more antennae |
| 10/05/1993 | US5250917 Equivalent inductance circuit |
| 09/29/1993 | EP0562712A2 Apparatus for filtering noise from a periodic signal |
| 09/28/1993 | US5249224 Methods and apparatus for providing reciprocal impedance conversion |
| 09/23/1993 | DE4209172A1 Analogue rank filter of regular similar stages - has serial-to-parallel converter outputs connected to inputs of N staged ranking circuit including noise generator |
| 09/22/1993 | EP0561099A1 Circuit device for suppressing the dependence from temperature and production process variables of the transconductance of a differential transconductor stage |
| 09/15/1993 | EP0559954A1 Active frequency band splitter |
| 09/15/1993 | EP0559684A1 Universal filter |
| 09/14/1993 | US5245646 Tuning circuit for use with an integrated continuous time analog filter |
| 09/14/1993 | US5245565 Digitally programmable linear phase filter having phase equalization |
| 09/14/1993 | US5245300 Intermediate frequency filter having a ceramic filter |
| 09/07/1993 | US5243431 Audio bandpass filter adaptive to differing television standards |
| 08/31/1993 | US5241227 Active high band weighting circuit of noise reduction circuit |
| 08/24/1993 | US5239367 Signal discriminating circuit and active filter using same |
| 08/18/1993 | EP0555905A1 Current divider and integrated circuit comprising a plurality of current dividers |
| 08/17/1993 | US5237527 Pulse shaping filter |
| 08/17/1993 | CA2016408C Filter control circuit |
| 08/17/1993 | CA1321415C Non-linear squelch circuit for ieee-802.3 protocol |
| 08/10/1993 | US5235540 Parasitic insensitive programmable biquadratic pulse slimming technique |
| 08/10/1993 | US5235295 Microwave equalizer suitable for aerospace applications |
| 08/10/1993 | US5235223 Constant Q peaking filter utilizing synthetic inductor and simulated capacitor |
| 08/03/1993 | US5233245 Rate controlled noise filter |
| 07/28/1993 | EP0552955A1 Electronically tuned matching network using predictor-corrector control system |
| 07/22/1993 | WO1993013710A1 Digital phase shifter |
| 07/20/1993 | US5229734 Filter with adjustable edge steepness |
| 07/20/1993 | US5229665 Optically controlled active impedance element and filters employing the same |
| 07/14/1993 | CN2138366Y General negative resistance IC circuit device |
| 07/13/1993 | US5227743 Automatic filter adjusting apparatus |
| 07/13/1993 | US5227681 Integration circuit |
| 07/13/1993 | US5227677 Zero power transmission line terminator |
| 07/06/1993 | US5225790 Tunable wideband active filter |
| 06/24/1993 | WO1993012387A1 Infrared-based sensing circuit providing an output simulating the output of a flame rod sensor |
| 06/24/1993 | CA2114030A1 Infrared-based sensing circuit providing an output simulating the output of a flame rod sensor |
| 06/22/1993 | US5221863 Phase-locked loop clock signal generator |
| 06/15/1993 | US5220686 Tunable resonance amplifier |
| 06/08/1993 | US5218319 Differential amplifier and active filter using the same |
| 06/01/1993 | US5216392 In a radio |
| 06/01/1993 | US5216375 Variable time-constant type differentiator |
| 06/01/1993 | US5216354 Controllable voltage-to-current converter having third-order distortion reduction |
| 06/01/1993 | US5216302 Reference delay generator and electronic device using the same |
| 05/18/1993 | US5212829 Circuit arrangement for suppression of interference signals |
| 05/11/1993 | US5210450 Active selectable digital delay circuit |
| 05/05/1993 | EP0539832A2 CMOS pseudo-NMOS programmable capacitance time vernier system and method for controlled delay of timing edges |
| 05/05/1993 | EP0539831A2 Pseudo-NMOS programmable capacitance delay element |
| 05/05/1993 | EP0539830A2 Pseudo-NMOS fine/coarse wired-or tapped delay line |
| 05/05/1993 | EP0539828A2 Variable width current mirror digital-to-analog converter (DAC) system and method for generating a control voltage for delay generation |
| 05/05/1993 | EP0539684A1 Tuning circuit for continuous-time filters and method therefor |
| 05/04/1993 | US5208842 Precision digitally-controlled variable attenuation circuit |
| 05/04/1993 | US5208551 Noise reduction circuit with a main signal path and an auxiliary signal path having a high-pass filter characteristic |
| 05/04/1993 | US5208213 Variable superconducting delay line having means for independently controlling constant delay time or constant impedance |
| 04/27/1993 | US5206603 Circuit arrangement with electronically controllable transfer characteristic |
| 04/27/1993 | US5206548 Noise reduction circuit |
| 04/13/1993 | US5202655 Microwave active filter circuit using pseudo gyrator |
| 04/10/1993 | CA2053085A1 Micro-wave bank compensator, particularly for space sector |
| 04/07/1993 | CN2129488Y Suspending anti-jamming power source |