Patents for H03H 7 - Multiple-port networks comprising only passive electrical elements as network components (15,104) |
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11/25/1992 | CN2123145U Wide-band lumped parameter 90 deg. directional coupler |
11/25/1992 | CA2069249A1 Decametric wave coupling device between two unbalanced lines and a balanced line |
11/24/1992 | US5166542 Signal converter for converting analog signal into pulse signal and control system using the same |
11/17/1992 | US5164687 Compact lumped constant non-reciprocal circuit element |
11/17/1992 | US5164677 Method and apparatus for synchronizing signals |
11/10/1992 | US5162911 Circuit for adding r.f. signals |
11/10/1992 | US5162750 Band limiter with temperature compensation circuit |
11/04/1992 | EP0511886A1 Phase shifter with vector modulator |
10/30/1992 | CA2065540A1 Vector modulated phase shifter circuit |
10/29/1992 | DE4113906A1 Selection filter for HF signals - has externally heated temp. compensation element set in or on housing |
10/28/1992 | CN2120406U Surface adhesive antenna matched transformer |
10/28/1992 | CN1065761A Micro wave band multiplex unequal power distributor/synthesizer |
10/27/1992 | US5159709 Arrangement having tracking if filter |
10/27/1992 | US5159300 Noise filter comprising a monolithic laminated ceramic varistor |
10/20/1992 | US5157362 Narrow band notch filter with extended passband |
10/20/1992 | US5157272 Pulse forming networks |
10/15/1992 | WO1992017912A1 Wide band frequency allotment type signal selection device utilizing electromagnetic coupling |
10/13/1992 | US5155862 Fm receiver having variable if filter |
10/13/1992 | US5155724 Dual mode diplexer/multiplexer |
10/06/1992 | US5153812 Composite LC element |
10/06/1992 | US5153171 Superconducting variable phase shifter using squid's to effect phase shift |
10/01/1992 | DE4110772A1 Output power attenuator for CB radio - uses quick-acting hot or cold conductors, e.g. light bulbs or limiter diodes, between transmitter output and antenna |
09/30/1992 | EP0506333A1 Window glass antenna system for automobile |
09/30/1992 | EP0506099A2 Signal distributor |
09/30/1992 | EP0505909A1 Apparatus for manufacturing electronic parts wrapped with conductive foil |
09/30/1992 | CN1018494B Balancing loop |
09/23/1992 | EP0504737A2 FM car radio with diversity combiner |
09/22/1992 | US5150086 Filter and electrical connector with filter |
09/15/1992 | US5148133 Quality factor improvement for filter applications |
09/15/1992 | US5148130 Wideband microstrip UHF balun |
09/15/1992 | US5148062 Simplified phase shifter circuit |
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 | US5146191 Delay line device and a method for producing the same |
09/01/1992 | US5144268 Bandpass filter utilizing capacitively coupled stepped impedance resonators |
08/27/1992 | DE4203961A1 Multilayer laminated dielectric GHz bandpass filter arrangement - features upper magnetically-coupled twin coil structure overlying dielectric layers and lower plate electrode |
08/27/1992 | DE4203960A1 Band-pass filter with two first electrodes - has second electrode formed flat obverse part of first electrodes forming magnetically coupled unit |
08/27/1992 | DE4203939A1 Band-pass filter with loop forming electrodes - forming magnetically coupled unit, while another electrodes is fitted to other side of plate |
08/26/1992 | EP0500103A1 Laminate Type LC Element |
08/25/1992 | US5142430 Power line filter and surge protection circuit components and circuits |
08/25/1992 | US5142369 First if filter with fixed second half-if trap for use in an fm radio in a television reciever |
08/18/1992 | US5140497 Composite electronic component and frequency adjustment method of the same |
08/18/1992 | US5140223 Circuit for adjusting the impedance of a plasma section to a high-frequency generator |
08/18/1992 | US5140200 Pin diode attenuator |
08/12/1992 | EP0498656A1 Encoding video signals |
08/05/1992 | EP0497058A2 Video coding apparatus |
08/05/1992 | EP0496999A2 High-frequency power divider/combiner circuit |
08/04/1992 | US5136455 Electromagnetic interference suppression device |
08/04/1992 | US5136267 Tunable bandpass filter system and filtering method |
08/04/1992 | US5136265 Discrete increment signal processing system using parallel branched n-state networks |
07/29/1992 | EP0496395A2 An LC filter |
07/23/1992 | WO1992012512A1 A system for enhancing an analog signal |
07/22/1992 | CN2110961U Combined electric power filter |
07/21/1992 | US5132650 Lc noise filter |
07/21/1992 | US5132649 Signal input device |
07/21/1992 | US5132647 Band pass and elimination filter network for electric signals with inputs symmetric to a specific reference level |
07/15/1992 | CN2110281U Wide band wave earth cutter brake |
07/14/1992 | US5130678 Transmission line transformer with DC isolation |
07/14/1992 | US5130677 Signal termination circuit |
07/08/1992 | EP0494058A1 A method for fine tuning the resonant frequency of a filter in a combiner |
07/07/1992 | US5128638 Four-post quadrature coupler suitable for monolithic implementation |
07/01/1992 | EP0492653A2 Printed filter for use in high-frequency circuit |
07/01/1992 | EP0492302A2 System for filtering signals of high and low frequency bands, relevant implementation device |
06/30/1992 | US5126703 Signal attenuator |
06/29/1992 | CA2058186A1 System for filtering signals of high and low frequency bands, and relevant implementation device |
06/25/1992 | DE4105146A1 HF decoupling circuit utilising transformer stray inductance - has dual bandpass filter circuits with frequency independent mached input voltage unrelated to reflection coefft. |
06/23/1992 | US5124674 Lumped element directional filter |
06/20/1992 | CA2032727A1 Cellular telephone filter |
06/09/1992 | US5121088 Frequency response equalizer |
06/09/1992 | US5121078 Filtering cell and corresponding filter |
06/09/1992 | US5121067 Directional sampling bridge |
06/09/1992 | CA1303127C High-pass element of a filter assembly for a line connected with static converters |
06/02/1992 | US5119050 Low loss 360 degree x-band analog phase shifter |
05/26/1992 | US5117202 Automatic level control circuit |
05/26/1992 | CA1301914C Antenna coupler |
05/20/1992 | EP0486322A2 Automatic filter adjusting apparatus |
05/20/1992 | EP0485828A2 Optical receiver |
05/19/1992 | US5115214 Balancing loop |
05/14/1992 | DE4034643A1 Phase shifter for VHF, UHF and microwave signals - uses capacitor and blind resistance element respectively connected in series with one capacitor of dual conductor system |
05/12/1992 | US5113335 Power supply system |
05/07/1992 | DE4035209A1 Impedance converter for wideband transmission - has 2=part core wound with winding exhibiting required partial winding ratio |
04/29/1992 | EP0482288A1 Electronic volume controller |
04/22/1992 | EP0481607A1 Amplitude correction of field coupled varactor tuned filters |
04/21/1992 | US5107233 Amplitude correction of field coupled varactor tuned filters |
04/21/1992 | CA1299257C Ac line filter |
04/21/1992 | CA1299256C Ac line filter |
04/15/1992 | EP0480423A1 Integrated circuit and gate array |
04/15/1992 | CN2101974U Joint for 75 ohm-300 ohm matching device |
04/14/1992 | US5105176 Dielectric resonator and a manufacturing method thereof |
04/14/1992 | US5105172 Monolithically realizable radio frequency bias choke |
04/08/1992 | CN2101348U Casing pipe for 75-300 ohm adaptor |
04/02/1992 | WO1992005600A1 Passive impedance matching device |
04/02/1992 | WO1992001346A3 Multimedia high speed network |
03/25/1992 | EP0476839A2 Superconducting variable phase shifter |
03/25/1992 | CN1016033B Signal discriminator and method of signal discrimination |
03/24/1992 | US5098528 Method for making an integrated type lc component |
03/18/1992 | EP0475116A2 Monolithically realizable radio frequency bias choke |
03/18/1992 | CN2099414U Resistance matching unit for outdoor antenna of t.v. set |
03/17/1992 | US5097236 Parallel connection multi-stage band-pass filter |
03/17/1992 | US5097234 Passive impedance matching device |
03/17/1992 | US5097218 Apparatus and method for multiplying the frequency of complex time varying signals |