| Patents for H03H 7 - Multiple-port networks comprising only passive electrical elements as network components (15,104) |
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| 03/17/1992 | US5097197 Signal level attenuating device |
| 03/04/1992 | EP0472846A1 High-frequency distribution network |
| 03/03/1992 | US5093641 Rectifier smoothing filter |
| 02/26/1992 | EP0472319A1 Tunable bandpass filter |
| 02/26/1992 | EP0472151A1 Integrated magnetic filter inductor having series and common mode windings |
| 02/26/1992 | CN2097476U Low-pass filter |
| 02/25/1992 | US5091708 Transmission line transformer |
| 02/19/1992 | EP0471440A2 Circuit for adding R.F. signals |
| 02/19/1992 | CN1058873A First if filter with fixed second half-if trap for use in fm radio in television ceceiver |
| 02/18/1992 | CA2047159A1 Circuit for adding r.f. signals |
| 02/13/1992 | DE4025159A1 Pi-filter for HF interference suppression - has dry capacitors with esp. polyester or polypropylene foil windings of specified resistance |
| 02/12/1992 | EP0470502A2 First if filter with fixed second half-if trap for use in an FM radio in a television receiver |
| 02/11/1992 | US5087900 Transmission line network for multiple capacitive loads |
| 02/06/1992 | DE4124924A1 Filter with several linear EM- linked helical coils - has mobile coil bodies of metal and dielectric material with metal one opposite metal plate below coil |
| 02/05/1992 | EP0469670A2 Transmission line transformer |
| 02/05/1992 | EP0469506A1 Radio transmission apparatus using leaky cables |
| 01/29/1992 | EP0468757A2 Branching filter |
| 01/28/1992 | US5084667 Nonvolatile nonlinear programmable electronic potentiometer |
| 01/28/1992 | CA2048009A1 Branching filter |
| 01/28/1992 | CA1295008C Communication line filter grounding electromagnetic pulse induced voltages |
| 01/23/1992 | WO1992001333A1 A method for improving stop-band attenuation of a duplex filter |
| 01/22/1992 | EP0467400A1 Filter and electrical connector with filter |
| 01/22/1992 | EP0467140A1 Improved pin diode attenuator |
| 01/21/1992 | US5083100 Electronically variable delay line |
| 01/15/1992 | EP0466556A1 Process for making an integrated LC component |
| 01/07/1992 | CA1294014C Apparatus for and method of discriminating signals |
| 01/02/1992 | EP0463710A2 Signal attenuator |
| 12/31/1991 | US5077499 High-frequency feeding method for use in plasma apparatus and device for carrying out the method |
| 12/27/1991 | EP0462338A1 Phase shifting circuits |
| 12/26/1991 | WO1991020126A1 Phase shifting circuits |
| 12/24/1991 | US5075650 Bandpass filter |
| 12/17/1991 | US5073762 Low frequency carrierband multi-port signal coupler |
| 12/11/1991 | EP0460333A1 Band pass and elimination filter network for electric signals |
| 12/10/1991 | US5072199 Broadband N-way active power splitter |
| 12/10/1991 | CA1293033C Matching circuit |
| 12/10/1991 | CA1293031C Sample holding circuit |
| 12/09/1991 | WO1992001346A2 Multimedia high speed network |
| 12/09/1991 | CA2083147A1 Multimedia high speed network |
| 12/03/1991 | CA1292776C Optical receiver circuit and method |
| 11/28/1991 | WO1991018427A1 Attenuator including a switchable gain stage |
| 11/26/1991 | US5068630 Multiple coupler device with return path |
| 11/21/1991 | EP0456921A1 Attenuator |
| 11/13/1991 | EP0456379A1 Analog phase shifter |
| 11/13/1991 | EP0456350A1 Matching element for mobile antenna |
| 11/12/1991 | US5065453 Electrically-tunable bandpass filter |
| 11/12/1991 | US5065117 Microwave circuit |
| 10/30/1991 | EP0454637A2 Low loss 360 degree X-band analog phase shifter |
| 10/29/1991 | US5061913 Lightweight line filter and a method for constructing a lightweight line filter |
| 10/29/1991 | US5061909 Attenuator switchably coupled to transmission path and means for switchably breaking the path |
| 10/29/1991 | CA1291531C Ac branch power distribution filter |
| 10/24/1991 | DE4012265A1 Schaltungsanordnung fuer einen ausgangstankkreis einer mit frequenzumtastung betriebenen sender-endstufe Circuit arrangement for an output tank circuit powered by a frequency shift keying transmitter-power amplifier |
| 10/18/1991 | WO1991016762A1 Circuit for an output resonant cavity in a frequency-shift transmitter output stage |
| 10/17/1991 | WO1991015884A1 Improved drive system for rf-excited gas lasers |
| 10/16/1991 | EP0452293A1 Method for tuning a filter and filter for implementing said method |
| 10/16/1991 | EP0451857A2 Input matching circuit |
| 10/15/1991 | US5058198 Radio frequency tap unit which can be reconfigured with minimal disruption of service |
| 10/15/1991 | US5057847 Rf connector for connecting a mobile radiotelephone to a rack |
| 10/15/1991 | US5057799 Damping device |
| 10/15/1991 | US5057783 Automatic impedance matching |
| 10/15/1991 | CA1290825C Impedance matching network |
| 10/03/1991 | WO1991015046A1 Power line filter and surge protection circuit components and circuits |
| 10/03/1991 | WO1991014945A1 Directional sampling bridge |
| 10/02/1991 | EP0449744A1 Directional sampling bridge |
| 10/02/1991 | EP0449612A2 Multipurpose analog front-end circuit |
| 10/02/1991 | EP0449495A2 Electrical power supply |
| 10/02/1991 | DE4009821A1 Darlington all=pass filter with transformer - has transit time determining reactance with switch(es) as short circuited line |
| 10/01/1991 | US5054117 Tunable UHF filter for switchable VHF/UHF receiver |
| 10/01/1991 | US5053730 Terminal structure for electronic components |
| 10/01/1991 | US5053725 Circuit configuration for the automatic tuning of a matching network |
| 09/26/1991 | DE4009076A1 Narrow bandpass filter for HF transmission - achieves symmetrical roll=off and min. insertion loss using 5 series element networks |
| 09/26/1991 | DE4009075A1 Narrow bandpass filter for HF transmission - achieves symmetrical roll=off and min. insertion loss using 3 or 4 series element networks |
| 09/24/1991 | US5051712 LC filter |
| 09/24/1991 | US5051710 Variable Zo transmission line transformer |
| 09/23/1991 | CA2034377A1 Mmic gain element with accurate gain |
| 09/11/1991 | CN1054514A 频率响应均衡器 Frequency response equalizer |
| 09/10/1991 | CA1288862C Apparatus for tuning the antenna of a miniature personal communications device |
| 09/10/1991 | CA1288832C Compact filter |
| 09/10/1991 | CA1288831C Bus interface loading assembly |
| 09/03/1991 | US5046072 Signal distribution system |
| 09/03/1991 | US5045823 Terminating scheme for transmitting multiple signals on a coaxial cable to multiple tap outlets |
| 09/03/1991 | US5045821 Broadband multi-phase hybrid |
| 08/29/1991 | DE4104718A1 Wound filter with interconnected electromagnetic coils - has rotary mounted coil former(s), with exception of input and output coil formers |
| 08/27/1991 | US5043654 Phase Shifter having parallel RC networks |
| 08/20/1991 | US5042085 Radio frequency data communication band pass filter |
| 08/20/1991 | US5041803 Automatic load matching circuit for microwaves using multi-element matching device |
| 08/13/1991 | US5040094 3-terminal capacitor |
| 08/13/1991 | US5039961 Coplanar attenuator element having tuning stubs |
| 08/07/1991 | CN2082463U High-gain outdoor tv receiving antenna and its over-all structure |
| 07/30/1991 | US5036302 Radio receiver filter with image rejection |
| 07/30/1991 | US5036292 Decoupled electrolytic capacitor |
| 07/24/1991 | EP0437885A2 Frequency response equalizing |
| 07/23/1991 | US5034710 LC filter device having magnetic resin encapsulating material |
| 07/23/1991 | US5034709 Composite electronic component |
| 07/18/1991 | DE4000615A1 Storing sequence of characters in data processing system memory - achieving max. data compression without data loss by substituting unused characters for repeated characters string etc. |
| 07/16/1991 | US5032810 LC filter |
| 07/16/1991 | US5032808 R.F. choke for CATV system |
| 07/16/1991 | US5032807 Notch filter using helical transmission line and coaxial capacitor |
| 07/16/1991 | US5032804 Frequency agile transmitter antenna combiner |
| 07/09/1991 | US5031037 Method and apparatus for vector quantizer parallel processing |
| 07/09/1991 | US5030933 Noise filter |