Patents
Patents for H03H 7 - Multiple-port networks comprising only passive electrical elements as network components (15,104)
11/1992
11/25/1992CN2123145U Wide-band lumped parameter 90 deg. directional coupler
11/25/1992CA2069249A1 Decametric wave coupling device between two unbalanced lines and a balanced line
11/24/1992US5166542 Signal converter for converting analog signal into pulse signal and control system using the same
11/17/1992US5164687 Compact lumped constant non-reciprocal circuit element
11/17/1992US5164677 Method and apparatus for synchronizing signals
11/10/1992US5162911 Circuit for adding r.f. signals
11/10/1992US5162750 Band limiter with temperature compensation circuit
11/04/1992EP0511886A1 Phase shifter with vector modulator
10/1992
10/30/1992CA2065540A1 Vector modulated phase shifter circuit
10/29/1992DE4113906A1 Selection filter for HF signals - has externally heated temp. compensation element set in or on housing
10/28/1992CN2120406U Surface adhesive antenna matched transformer
10/28/1992CN1065761A Micro wave band multiplex unequal power distributor/synthesizer
10/27/1992US5159709 Arrangement having tracking if filter
10/27/1992US5159300 Noise filter comprising a monolithic laminated ceramic varistor
10/20/1992US5157362 Narrow band notch filter with extended passband
10/20/1992US5157272 Pulse forming networks
10/15/1992WO1992017912A1 Wide band frequency allotment type signal selection device utilizing electromagnetic coupling
10/13/1992US5155862 Fm receiver having variable if filter
10/13/1992US5155724 Dual mode diplexer/multiplexer
10/06/1992US5153812 Composite LC element
10/06/1992US5153171 Superconducting variable phase shifter using squid's to effect phase shift
10/01/1992DE4110772A1 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
09/1992
09/30/1992EP0506333A1 Window glass antenna system for automobile
09/30/1992EP0506099A2 Signal distributor
09/30/1992EP0505909A1 Apparatus for manufacturing electronic parts wrapped with conductive foil
09/30/1992CN1018494B Balancing loop
09/23/1992EP0504737A2 FM car radio with diversity combiner
09/22/1992US5150086 Filter and electrical connector with filter
09/15/1992US5148133 Quality factor improvement for filter applications
09/15/1992US5148130 Wideband microstrip UHF balun
09/15/1992US5148062 Simplified phase shifter circuit
09/09/1992EP0308479B1 Monolithic microwave phase shifting network with multiple outputs between which a constant phase difference is maintained over a large frequency range
09/08/1992US5146191 Delay line device and a method for producing the same
09/01/1992US5144268 Bandpass filter utilizing capacitively coupled stepped impedance resonators
08/1992
08/27/1992DE4203961A1 Multilayer laminated dielectric GHz bandpass filter arrangement - features upper magnetically-coupled twin coil structure overlying dielectric layers and lower plate electrode
08/27/1992DE4203960A1 Band-pass filter with two first electrodes - has second electrode formed flat obverse part of first electrodes forming magnetically coupled unit
08/27/1992DE4203939A1 Band-pass filter with loop forming electrodes - forming magnetically coupled unit, while another electrodes is fitted to other side of plate
08/26/1992EP0500103A1 Laminate Type LC Element
08/25/1992US5142430 Power line filter and surge protection circuit components and circuits
08/25/1992US5142369 First if filter with fixed second half-if trap for use in an fm radio in a television reciever
08/18/1992US5140497 Composite electronic component and frequency adjustment method of the same
08/18/1992US5140223 Circuit for adjusting the impedance of a plasma section to a high-frequency generator
08/18/1992US5140200 Pin diode attenuator
08/12/1992EP0498656A1 Encoding video signals
08/05/1992EP0497058A2 Video coding apparatus
08/05/1992EP0496999A2 High-frequency power divider/combiner circuit
08/04/1992US5136455 Electromagnetic interference suppression device
08/04/1992US5136267 Tunable bandpass filter system and filtering method
08/04/1992US5136265 Discrete increment signal processing system using parallel branched n-state networks
07/1992
07/29/1992EP0496395A2 An LC filter
07/23/1992WO1992012512A1 A system for enhancing an analog signal
07/22/1992CN2110961U Combined electric power filter
07/21/1992US5132650 Lc noise filter
07/21/1992US5132649 Signal input device
07/21/1992US5132647 Band pass and elimination filter network for electric signals with inputs symmetric to a specific reference level
07/15/1992CN2110281U Wide band wave earth cutter brake
07/14/1992US5130678 Transmission line transformer with DC isolation
07/14/1992US5130677 Signal termination circuit
07/08/1992EP0494058A1 A method for fine tuning the resonant frequency of a filter in a combiner
07/07/1992US5128638 Four-post quadrature coupler suitable for monolithic implementation
07/01/1992EP0492653A2 Printed filter for use in high-frequency circuit
07/01/1992EP0492302A2 System for filtering signals of high and low frequency bands, relevant implementation device
06/1992
06/30/1992US5126703 Signal attenuator
06/29/1992CA2058186A1 System for filtering signals of high and low frequency bands, and relevant implementation device
06/25/1992DE4105146A1 HF decoupling circuit utilising transformer stray inductance - has dual bandpass filter circuits with frequency independent mached input voltage unrelated to reflection coefft.
06/23/1992US5124674 Lumped element directional filter
06/20/1992CA2032727A1 Cellular telephone filter
06/09/1992US5121088 Frequency response equalizer
06/09/1992US5121078 Filtering cell and corresponding filter
06/09/1992US5121067 Directional sampling bridge
06/09/1992CA1303127C High-pass element of a filter assembly for a line connected with static converters
06/02/1992US5119050 Low loss 360 degree x-band analog phase shifter
05/1992
05/26/1992US5117202 Automatic level control circuit
05/26/1992CA1301914C Antenna coupler
05/20/1992EP0486322A2 Automatic filter adjusting apparatus
05/20/1992EP0485828A2 Optical receiver
05/19/1992US5115214 Balancing loop
05/14/1992DE4034643A1 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
05/12/1992US5113335 Power supply system
05/07/1992DE4035209A1 Impedance converter for wideband transmission - has 2=part core wound with winding exhibiting required partial winding ratio
04/1992
04/29/1992EP0482288A1 Electronic volume controller
04/22/1992EP0481607A1 Amplitude correction of field coupled varactor tuned filters
04/21/1992US5107233 Amplitude correction of field coupled varactor tuned filters
04/21/1992CA1299257C Ac line filter
04/21/1992CA1299256C Ac line filter
04/15/1992EP0480423A1 Integrated circuit and gate array
04/15/1992CN2101974U Joint for 75 ohm-300 ohm matching device
04/14/1992US5105176 Dielectric resonator and a manufacturing method thereof
04/14/1992US5105172 Monolithically realizable radio frequency bias choke
04/08/1992CN2101348U Casing pipe for 75-300 ohm adaptor
04/02/1992WO1992005600A1 Passive impedance matching device
04/02/1992WO1992001346A3 Multimedia high speed network
03/1992
03/25/1992EP0476839A2 Superconducting variable phase shifter
03/25/1992CN1016033B Signal discriminator and method of signal discrimination
03/24/1992US5098528 Method for making an integrated type lc component
03/18/1992EP0475116A2 Monolithically realizable radio frequency bias choke
03/18/1992CN2099414U Resistance matching unit for outdoor antenna of t.v. set
03/17/1992US5097236 Parallel connection multi-stage band-pass filter
03/17/1992US5097234 Passive impedance matching device
03/17/1992US5097218 Apparatus and method for multiplying the frequency of complex time varying signals