| Patents for H03H 11 - Networks using active elements (9,098) |
|---|
| 02/12/1987 | DE3527523A1 Integrator |
| 02/10/1987 | US4642541 Track following servo for higher density disk files |
| 02/10/1987 | CA1217829A High order electrical signal filters |
| 02/05/1987 | DE3520790A1 Method of frequency-dependent amplitude response reduction without affecting phase response, and circuit to implement the method |
| 01/29/1987 | DE3526461A1 Resistor chain |
| 01/28/1987 | EP0210067A2 Controlling a semi-conductor resistance defining component |
| 01/27/1987 | US4639617 Variable-bias circuit with HF transmission path |
| 01/27/1987 | CA1217244A1 Insulator circuit with an optoelectronic coupler |
| 01/22/1987 | DE3525398A1 Transistor circuit for analog signals |
| 01/20/1987 | US4638265 Balanced variable reactance circuit and method of producing the same |
| 01/20/1987 | US4638191 Amplitude insensitive delay line |
| 01/20/1987 | US4638190 Digitally controlled wideband phase shifter |
| 01/20/1987 | US4638167 Insulator circuit with an optoelectronic coupler |
| 01/13/1987 | US4636745 Signal waveform equalizing circuitry |
| 01/06/1987 | US4635005 Quadrupole for matching of a reactance, independently of the operating frequency |
| 12/31/1986 | CN86102750A Narrow band electroencephalographic amplifier |
| 12/31/1986 | CN85104174A Filter with same frequency |
| 12/30/1986 | US4633501 Program dependent crossover filter (PDC) |
| 12/30/1986 | US4633308 Amplitude insensitive delay lines in an accoustic imaging system |
| 12/30/1986 | US4633285 Semiconductor device |
| 12/30/1986 | US4632124 Method and apparatus for delaying an ultrasound signal |
| 12/18/1986 | WO1986007508A1 Balanced variable reactance circuit and method of producing the same |
| 12/17/1986 | EP0205104A2 Intermediate potential generation circuit |
| 12/16/1986 | US4629998 Variable gain equalizer with a mirror circuit having opposite phase relationship between input and output currents |
| 12/16/1986 | US4629995 Variable emphasis circuit |
| 12/16/1986 | US4629901 Photo coupler with static induction transistor type detector |
| 12/10/1986 | EP0204088A2 Integrated circuit with a phase-locked loop |
| 12/09/1986 | CA1215136A1 Optical receiver circuit |
| 12/04/1986 | WO1986007215A1 Improvements in or relating to transconductors |
| 12/02/1986 | US4626796 Digital apparatus and method for programmably phase shifting an audio tone |
| 11/26/1986 | EP0202708A2 D.C. block capacitor circuit |
| 11/25/1986 | US4625186 Two-terminal negative admittance network |
| 11/25/1986 | US4625131 Attenuator circuit |
| 11/18/1986 | CA1214229A1 Circuit arrangement for converting an input voltage into a proportional output signal |
| 11/11/1986 | US4622476 Temperature compensated active resistor |
| 11/05/1986 | EP0200239A2 Digital polyphase filter bank with maximum sampling-rate reduction |
| 11/04/1986 | US4621242 R.F. impedance match control system |
| 11/04/1986 | US4621209 Frequency-independent phase compensation circuit |
| 10/29/1986 | EP0199219A2 Narrow band electroencephalographic amplifier |
| 10/29/1986 | CN85100788A 滤波集成电路 Filter IC |
| 10/21/1986 | CA1213008A1 Automatically adjustable equalizing network |
| 10/14/1986 | US4617588 Feedback type comb filter |
| 10/08/1986 | EP0196893A2 Temperature compensated active resistor |
| 10/08/1986 | EP0196883A2 Active filter circuits |
| 10/07/1986 | CA1212431A1 Variable delay line |
| 09/30/1986 | CA1212154A1 Delay compensation method and apparatus for digital display systems |
| 09/10/1986 | CN85102784A Individual adjustable single-capacitor two-step low-pass active filter |
| 09/10/1986 | CN85102779A Single capacitor band-pass active filter |
| 09/09/1986 | US4611184 Microwave frequency power divider |
| 09/02/1986 | US4609889 Microwave frequency power combiner |
| 09/02/1986 | US4609887 Delay equalizer |
| 08/27/1986 | EP0191784A1 Optical receiver circuit. |
| 08/26/1986 | US4608636 Slew rate filter for logging cable signal pick-off |
| 08/26/1986 | US4608543 Controllable effective resistance and phase lock loop with controllable filter |
| 08/20/1986 | EP0191529A2 Electrical filter |
| 08/20/1986 | EP0191341A2 Active band elimination filter |
| 08/20/1986 | EP0191089A1 Active transconductance filter device |
| 08/19/1986 | US4607243 Complex capacitive impedance with a voltage follower circuit |
| 08/19/1986 | US4607229 Phase shifter |
| 08/19/1986 | CA1210097A1 Signal transfer system using a charge transfer device |
| 08/12/1986 | US4605912 Continuously variable phase shifting element comprised of interdigitated electrode MESFET |
| 08/12/1986 | US4605822 Active equalization circuit |
| 08/05/1986 | US4604591 Automatically adjustable delay circuit having adjustable diode mesa microstrip delay line |
| 08/05/1986 | US4604568 Current source with adjustable temperature coefficient |
| 08/05/1986 | US4603586 Delay line circuit arrangement and ultrasonic imaging apparatus utilizing the same |
| 08/05/1986 | CA1209246A1 Dynamic noise filter for an audio signal in a television |
| 07/30/1986 | EP0189347A2 Second order all pass network |
| 07/22/1986 | US4602224 Variable capacitance reactance circuit |
| 07/15/1986 | US4600876 Integrated bootstrap bias circuit |
| 07/09/1986 | CN85107301A Delay circuit for digital signals |
| 07/02/1986 | EP0186401A2 Controllable effective resistance circuits |
| 07/02/1986 | CN85104149A Active sistance-capacitance analog inductance-capacitance t type filter with negative impedance converter |
| 06/25/1986 | EP0185417A2 Active polyphase filters |
| 06/25/1986 | EP0185416A2 Radio receiver/transmitter filters |
| 06/24/1986 | CA1206543A1 Tunable active filter |
| 06/24/1986 | CA1206541A1 Acoustic charge transport device and method |
| 06/17/1986 | US4595912 Integrated circuit for generating a terminal voltage adjustable by a digital signal |
| 06/17/1986 | US4595885 Adjustable active filter |
| 06/10/1986 | US4594648 Wide frequency band coupling network for an active ripple and noise filter |
| 06/10/1986 | CN85106804A Nonlinear signal processing apparatus |
| 05/28/1986 | EP0182704A2 Delay circuit having delay time period determined by discharging operation |
| 05/28/1986 | EP0181953A1 Interpolator for digital signals |
| 05/27/1986 | US4591805 Adaptive bandwidth amplifier |
| 05/27/1986 | US4591739 Impedance conversion circuit |
| 05/20/1986 | US4590417 Voltage controlled diode attenuator |
| 05/20/1986 | CA1204829A1 Delay equalizers |
| 05/13/1986 | US4589135 Zero phase shift filtering |
| 05/13/1986 | US4588909 Distortion compensating circuit |
| 05/06/1986 | US4587500 Variable reactance circuit producing negative to positive varying reactance |
| 05/06/1986 | US4587437 Coupling/decoupling capacitor multiplier |
| 05/06/1986 | CA1204179A1 Attenuator circuit |
| 05/06/1986 | CA1204177A1 Symmetrical polyphase networks |
| 04/29/1986 | US4584880 Tissue signature tracking tranceiver |
| 04/23/1986 | EP0178936A2 Variable emphasis circuit |
| 04/22/1986 | CA1203584A1 Electronic gain-control arrangement |
| 04/15/1986 | EP0122918A4 Acoustic charge transport device and method. |
| 04/15/1986 | CA1203295A1 Compensation method and apparatus for an rc attenuator |
| 04/10/1986 | WO1986002215A1 Current source with adjustable temperature coefficient |
| 04/09/1986 | EP0177069A1 Arrangement for combining the output signals from a plurality of transmitters tuned to the same frequency |
| 04/08/1986 | US4581588 Switchable bandpass filter |