| Patents for H03H 11 - Networks using active elements (9,098) |
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| 04/06/1993 | US5201009 Signal processor |
| 04/06/1993 | US5200717 Active electrical circuitry interconnected and shielded by elastomer means |
| 04/06/1993 | US5200716 Cut-off frequency automatic adjusting filter |
| 03/31/1993 | EP0534550A1 Impedance transformation circuit |
| 03/30/1993 | US5198783 Optically controlled active impedance element particularly suited for a microwave oscillator |
| 03/30/1993 | US5198782 Low distortion amplifier output stage for dac |
| 03/23/1993 | US5196809 High gain, low distortion, faster switching transistor |
| 03/23/1993 | US5196740 Integrated circuit for analogue system |
| 03/16/1993 | US5195045 Automatic impedance matching apparatus and method |
| 03/16/1993 | US5194768 Apparatus for filtering noise from a periodic signal |
| 03/16/1993 | US5194765 Digitally controlled element sizing |
| 03/10/1993 | EP0530914A2 Transceiver arrangement for mutually transmitting information in a DC isolated manner |
| 03/09/1993 | US5193213 FM broadcast band subcarrier receiver |
| 03/09/1993 | US5192884 Active filter having reduced capacitor area but maintaining filter characteristics |
| 03/05/1993 | CA2077287A1 Telecommunication system comprising a transceiver arrangement for mutually transmitting information in a dc isolated manner, and transceiver arrangement to be used in the telecommunicaion system |
| 03/04/1993 | DE4129011A1 Transmission appts. with several transmitters, e.g for ship or aircraft - has frequency selector and common aerial with various transmitters tunable to same or at least overlapping frequency ranges |
| 03/03/1993 | CN1069606A Amplifier for limiter |
| 03/02/1993 | US5191338 Wideband transmission-mode FET linearizer |
| 03/01/1993 | CA2069974A1 Means for terminating a tristatable electrical bus |
| 02/24/1993 | EP0528659A1 Impedance multiplier |
| 02/23/1993 | US5188117 Notch filter noise rejection system in a cardiac control device |
| 02/18/1993 | WO1993003543A1 Voltage-controlled variable capacitor |
| 02/18/1993 | DE4126850A1 Circuit for matching data bus controller to symmetrical bus line - has filters for attenuating HF components, and evaluation delay which is set longer than filter delay |
| 02/16/1993 | US5187454 Electronically tuned matching network using predictor-corrector control system |
| 02/16/1993 | US5187445 Tuning circuit for continuous-time filters and method therefor |
| 02/09/1993 | US5185540 Adjustable time constant circuit with constant capacitance and variable resistance |
| 02/03/1993 | EP0526146A1 AC-DC decoupling circuit for audio signals and used in an integrated circuit |
| 02/03/1993 | EP0525242A1 Filter with controllable edge steepness |
| 01/27/1993 | EP0524338A1 Input stage for digital signals |
| 01/26/1993 | US5182522 Polar leapfrog filter |
| 01/26/1993 | US5182478 Variable band-pass filter circuit |
| 01/26/1993 | CA2074573A1 Apparatus for maintaining a low power loss within an input stage for digital signals |
| 01/19/1993 | US5180998 Switched transmission line phase shifter apparatus employing multiple jets |
| 01/12/1993 | US5179727 Automatic adjusting circuit for an analog filter |
| 01/07/1993 | EP0521404A1 Capacitive circuit |
| 01/06/1993 | CN1067771A 有源负电阻电路 Active negative resistance circuit |
| 01/05/1993 | US5177449 Radio frequency amplifier circuit |
| 01/05/1993 | US5177382 Active filter circuit |
| 12/30/1992 | EP0520751A1 Integrating filter circuit |
| 12/30/1992 | EP0520685A1 Digitally controlled element sizing |
| 12/30/1992 | EP0520485A1 Variable delay device |
| 12/29/1992 | US5175513 Oscillator circuit employing inductive circuit formed of field effect transistors |
| 12/29/1992 | US5175510 Loop filter for a frequency synthesizer |
| 12/23/1992 | EP0519170A1 Broadband phase shifter and vector modulator |
| 12/08/1992 | US5170496 Circuit arrangement for matching the resonant frequency of an antenna resonant circuit to the output frequency of a transmitter output stage |
| 12/02/1992 | CN1019348B Composite admittance device |
| 12/01/1992 | US5168250 Broadband phase shifter and vector modulator |
| 12/01/1992 | US5168180 Low frequency filter in a monolithic integrated circuit |
| 11/24/1992 | US5166648 Digital phase shifter apparatus |
| 11/24/1992 | US5166560 Voltage-controlled variable capacitor |
| 11/24/1992 | US5165272 Device for reducing noise during potentiometer evaluation |
| 11/19/1992 | EP0513586A1 Equivalent inductance circuit |
| 11/19/1992 | DE4116126A1 Transmitter for frequency hopping operation - has hopping harmonic wave filter between HF power amplifier and aerial matching network |
| 11/19/1992 | DE4115662A1 Multi-processor control unit for road vehicles - has reset generated by identification of fault condition with signal connection via filter units |
| 11/19/1992 | DE4115599A1 Electrical damping element with bridged T-configuration - uses two controlled, nonlinear resistances supplied via voltage source providing temp. dependent DC voltage |
| 11/18/1992 | CN1066350A 有源负电阻装置 Active negative resistance device |
| 11/12/1992 | WO1992020151A1 Interface circuit for telephone exchange installations |
| 11/12/1992 | WO1992020149A1 Device and method for adjusting a bandpass filter, especially a combiner filter |
| 11/10/1992 | US5163181 Multiple rf signal amplification method and apparatus |
| 11/10/1992 | US5162750 Band limiter with temperature compensation circuit |
| 11/10/1992 | US5162657 Optical control of a microwave switch |
| 11/10/1992 | US5162646 Radiation-controlled filter with photoconductor means and feedback thereto |
| 11/04/1992 | EP0511886A1 Phase shifter with vector modulator |
| 11/04/1992 | EP0511603A2 Active filter characteristic changeover circuit for use in a VCR |
| 11/04/1992 | EP0511536A1 Integrated circuit with trimmable passive components |
| 11/04/1992 | EP0323996B1 Oscillator network and quadrature network for radio receiver |
| 11/04/1992 | CN1065959A 90 deg. phaseshift circuit for reactive power measurement |
| 11/03/1992 | US5161254 Active filtering mixer |
| 10/30/1992 | CA2065540A1 Vector modulated phase shifter circuit |
| 10/28/1992 | EP0510194A1 Terminal, data processor, switching unit, interface, and keyboard the latter three connected to the former two |
| 10/27/1992 | US5159284 Noise reduction circuit with a main signal path and an auxiliary signal path having a high-pass filter characteristic |
| 10/21/1992 | EP0509495A2 Intermediate frequency filter |
| 10/20/1992 | US5157559 Adjustable bandwidth differentiating amplifier for a magnetic disk drive |
| 10/20/1992 | US5157323 Switched low-loss attenuator |
| 10/20/1992 | US5157288 Phase shifting circuits |
| 10/14/1992 | EP0508635A2 Attenuator apparatus and method of assembly |
| 10/13/1992 | US5155395 Filter circuit comprising an amplifier and a capacitor |
| 10/08/1992 | DE4210843A1 Photocoupler for signal separation in DC output module - has pair of inputs, between which LED is incorporated as photoelectric transducer |
| 10/07/1992 | CN2118367U Integrated high friquency wide-band active second distributer |
| 10/06/1992 | US5153468 Method and a circuit for reducing microphony |
| 09/29/1992 | US5151792 Video signal reproducing apparatus with means for producing a crosstalk eliminated luminance output signal |
| 09/29/1992 | US5151669 Dual-gate fet attenuator controlled by a variable load circuit |
| 09/17/1992 | WO1992015952A1 Automatic impedance matching apparatus and method |
| 09/16/1992 | EP0504062A1 Integrated circuit with servo-controlled impedances and application to transceivers, particularly for communication between units of an information system |
| 09/16/1992 | CN1018312B Transmission line switch |
| 09/09/1992 | EP0502570A1 Controllable voltage-to-current converter having third-order distortion reduction |
| 09/09/1992 | EP0308479B1 Monolithic microwave phase shifting network with multiple outputs between which a constant phase difference is maintained over a large frequency range |
| 09/08/1992 | US5146506 Isolator circuit for an audio system |
| 09/08/1992 | US5146192 Delay circuit of ultrasonic diagnostic apparatus using delay line comprising variable capacitance diode and inductor |
| 09/01/1992 | US5144266 Broadband high frequency active MMIC circulator |
| 09/01/1992 | US5143738 Computerized food product extrusion machine and method |
| 08/26/1992 | EP0500368A1 Survival detection system |
| 08/26/1992 | EP0500037A2 Circuit for suppressing noise |
| 08/26/1992 | CA2061754A1 Survival seismic detection system having improved tunable filter |
| 08/25/1992 | US5142164 Subharomic noise reduction circuit |
| 08/19/1992 | EP0499263A1 Radio frequency amplifier circuit |
| 08/19/1992 | CN2113571U High property zero point active filter |
| 08/18/1992 | US5140623 Input bias circuit for gate input type charge transfer device for controlling the potential level of the input signal |
| 08/18/1992 | US5140200 Pin diode attenuator |
| 08/12/1992 | EP0498456A1 Predistorter and method for linearization of electronic and optical signals |