Patents
Patents for H03H 7 - Multiple-port networks comprising only passive electrical elements as network components (15,104)
04/1983
04/19/1983US4380767 Controlled antenna tuner
04/19/1983CA1144866A1 Device for artificial reverberation
04/05/1983US4379273 Pulse transformer laser diode package
03/1983
03/30/1983EP0075441A2 Voltage dividing circuit
03/29/1983US4378536 High power, low frequency, electronically adjustable attenuator
03/29/1983CA1143804A1 Wide range data cable equalizer
03/22/1983CA1143445A1 Band-pass filter circuit
03/16/1983EP0073884A1 Adjustable equalizer
03/15/1983CA1143005A1 Rf sputtering apparatus including multi-network power supply
03/09/1983EP0073293A2 Quadripole
03/08/1983CA1142642A1 Signal separation networks
03/03/1983WO1983000784A1 Adaptive equalizer
02/1983
02/23/1983EP0072698A2 Diplexer useful especially for television tuning systems
02/23/1983EP0072542A2 Adaptive equalizer
02/22/1983US4375051 Automatic impedance matching between source and load
02/15/1983CA1141444A1 Electrical filter assembly
02/15/1983CA1141439A1 Delay line compensation network
02/01/1983US4371748 Device for artificial reverberation
01/1983
01/25/1983US4370516 Cooperative TV-FM cable splitter-ground module and housing therefor
01/18/1983US4369416 Band-stop filter for equipment with carrier-frequency utilization of low-voltage lines
01/18/1983US4369414 High-frequency input circuit for two inputs
01/18/1983CA1139852A1 Electromagnetic delay line
12/1982
12/28/1982US4366485 Concentric tube antenna encased in dielectric
12/28/1982US4366346 Artificial reverberation apparatus
12/14/1982US4363934 Volume control device
12/14/1982CA1137573A1 Band pass filter circuit
12/07/1982US4363009 L-C Filter with impedance transformers
12/07/1982CA1137179A1 Antenna isolation device
11/1982
11/30/1982US4361894 Band-pass filter circuit
11/09/1982CA1135430A1 Automatic equalization for digital transmission systems
10/1982
10/27/1982EP0063414A2 Apparatus for coupling signals to or from a two-wire line
10/26/1982US4356458 Automatic impedance matching apparatus
10/19/1982CA1133832A1 Artificial reverberation apparatus
10/13/1982EP0062493A2 Band-pass filter having multilayered coil structures
10/12/1982US4354167 Multi-subscriber differentiation and distribution switching system having interchangeable differentiating circuits
10/12/1982US4354159 Prescription attenuator having cascaded L-pad sections
10/12/1982CA1133598A1 Cavity filter and multicoupler utilizing same
10/06/1982EP0061950A1 Oddly arranged self correcting electrical filters
09/1982
09/28/1982US4352111 Multi-band antenna coupling network
09/28/1982US4352107 Matching cable for automobile antennas for receiving FM broadcasts
09/22/1982EP0060325A1 Circuit for the conversion of an input signal, comprising harmonics in a certain frequency domain in an in-phase and/or amplitude-adjustable sinusoidal output signal
09/14/1982US4349795 RF Trap for a cable television trunk amplifier station
09/14/1982US4349779 Volume control apparatus
09/08/1982EP0059268A1 Tuner for television receivers
09/01/1982EP0058820A1 Radio frequency generator system
08/1982
08/31/1982CA1130860A1 Controllable phase shifter
08/31/1982CA1130858A1 Harmonic cancellation for multi-bridge, three-phase converters
08/25/1982EP0058504A2 Method of constructing a delay circuit in a master slice IC
08/24/1982CA1130450A1 Phase tracking loop circuit
08/10/1982CA1129510A1 Switching arrangement [circuit] and process to compensate harmonic currents
08/04/1982EP0057112A2 Electrical filter, self-correcting in propagation time
07/1982
07/27/1982US4342013 Bidirectional power line filter
07/13/1982CA1127725A1 Variable resistance attenuator
07/06/1982CA1126938A1 Apparatus for making an inductive delay line component
06/1982
06/23/1982EP0054323A2 Clock pulse phase shifter
06/22/1982CA1126355A1 Delay network comprising a chain of all-pass sections
06/22/1982CA1126354A1 Amplitude modulator
06/16/1982EP0053675A1 Multiple coupler for high-frequency energy with return channel
06/15/1982US4335347 Power combining or dividing arrangements
06/08/1982CA1125391A1 Filter circuit utilizing charge transfer device
05/1982
05/05/1982EP0050918A2 Controlled antenna tuner
05/04/1982CA1123131A1 Transformerless trunk circuit
05/04/1982CA1123068A2 Resistive pad
03/1982
03/23/1982US4321431 Trunk circuit with single coupling transformer
03/17/1982EP0047354A1 Radiotelephone
03/17/1982EP0047289A1 A distributed rc-component with trimmable electric impedance
03/16/1982US4320364 Capacitor arrangement
03/09/1982CA1119680A1 Series notch filter and multicoupler utilizing same
02/1982
02/03/1982EP0044909A2 High-frequency multiple-distribution circuit arrangement
02/02/1982US4314162 Filter circuit utilizing charge transfer device
01/1982
01/26/1982CA1117193A1 Microminiature electrical delay line utilizing thin film inductor array with magnetic enhancement and coupling
01/19/1982US4311974 Wide band directional coupler
01/19/1982US4311972 High speed antenna coupler
01/13/1982EP0043516A2 Electric filtration device
01/12/1982US4310815 Electromagnetic delay line
01/12/1982US4310803 Bandpass filter circuit
01/12/1982CA1116253A1 Combiner system
01/06/1982EP0043065A1 Transmission-line signal coupler
12/1981
12/29/1981US4308620 System for maintaining phase coincidence between a carrier wave and sidebands produced by a transmitter
12/29/1981US4308575 Power source system
12/10/1981WO1981003588A1 Wide band directional coupler
12/10/1981WO1981003576A1 Lc composite part
12/02/1981EP0040768A1 Monitoring device for an LC filter circuit of an alternating current network
12/02/1981EP0040660A1 Equalizing apparatus for data transmission lines
12/01/1981US4303896 Wide range data cable equalizer
11/1981
11/24/1981US4302738 Noise rejection circuitry for a frequency discriminator
11/24/1981US4302737 RC Network
11/24/1981US4302735 Delay line compensation network
11/24/1981US4302716 Controllable phase shifter
11/10/1981US4300108 Electrical attenuator
10/1981
10/28/1981EP0038657A2 Filtered electrical connector
10/20/1981US4296390 Solderless filter mounting for header assemblies
10/13/1981US4295107 Impedance transformation network
10/13/1981CA1110707A1 Method for automatically matching a radio frequency transmitter to an antenna
09/1981
09/22/1981US4291284 Antenna coupler
09/17/1981WO1981002652A1 A compound with trimmable electric impedance i.e.a stub
09/16/1981EP0035758A1 Circuit arrangement for generating supply voltages for the picture tubes of television receivers
09/08/1981US4288763 Analog phase shifter
09/01/1981US4287492 Concentrated constant type delay device
09/01/1981CA1108252A1 Dual section distributed parameter delay-line