Patents
Patents for H03H 7 - Multiple-port networks comprising only passive electrical elements as network components (15,104)
02/1986
02/25/1986US4573101 LC Composite component
02/19/1986EP0171924A2 Radio frequency multiplexing filter using fibre optic delays
02/18/1986US4571560 Switched bandpass filter
02/18/1986CA1200857A1 Method of constructing an lc network
02/11/1986US4570135 Delay line
02/04/1986US4568886 Amplitude compensated variable bandwidth filter
01/1986
01/30/1986WO1986000749A1 High frequency transformer
01/28/1986US4567602 Correlated signal processor
01/28/1986US4567523 Television receiver input circuit
01/28/1986US4567446 Light-receiving device for optical data transfer system
01/21/1986US4566076 Method of attenuating a digital signal and device for carrying out said method
01/21/1986US4565981 Electromagnetic delay line
01/21/1986CA1199696A1 Voltage divider
01/07/1986US4563660 Noise isolation system for high-speed circuits
01/07/1986US4563659 Noise filter
01/02/1986EP0166551A1 Improvements in multicoupler systems
01/02/1986EP0166380A2 frequency selective filter circuit
12/1985
12/31/1985US4562458 Circuit for coupling a three terminal filter to a signal path using one interface connection
12/31/1985CA1198782A1 Miniaturized antenna duplexer using saw filter
12/17/1985CA1198184A1 Planar electronic filter element and a connector embodying such a filter
12/10/1985US4558291 Phase shifter for broadband radio signal
12/10/1985US4558285 Impedance-matching device for power amplifier circuit
12/03/1985US4556856 Planar, lumped element, matched N-way power divider
12/03/1985CA1197577A1 Four-terminal network
11/1985
11/26/1985US4555681 Improved, low-distortion, broadband directional coupler formed by multiple series transformers
11/19/1985US4554518 Wide band impedance transformer with transformation ratio close to three for radio frequencies
11/19/1985CA1196971A1 High speed power step attenuator method and apparatus
11/13/1985EP0161059A1 Phase shifter
11/12/1985US4553248 Analog adaptive magnitude equalizer
10/1985
10/16/1985EP0158231A2 Filter integrated circuit
10/09/1985EP0157704A2 Duplex transmission mechanism for digital telephones
10/09/1985EP0157145A1 Antenna plug socket
10/08/1985US4546332 Variable delay line
09/1985
09/26/1985WO1985004303A1 Circuit for variably extending the propagation time of an ultrasound delay line
09/25/1985EP0155483A2 Broad-band matching network
09/10/1985US4540946 Signal processing apparatus
09/10/1985US4540896 Variable resistance circuit
09/10/1985CA1193320A1 Device for detecting the optimum anode load impedance of a tube transmitter in a high frequency transmission chain
09/04/1985EP0153777A2 RF circuit switching
08/1985
08/28/1985EP0153239A1 Radiating system for broadcasting in road tunnels and powering equipment for this system
08/28/1985EP0153019A2 Trimming resistances in symmetrical polyphase networks
08/21/1985EP0152002A1 Phase-shifter
08/21/1985EP0151784A2 High frequency distribution network
08/20/1985CA1192278A1 Radio frequency generator system
08/20/1985CA1192276A1 Lc delay line for feedforward amplifier
08/14/1985EP0151532A2 Voltage controlled diode attenuator
07/1985
07/17/1985EP0148706A2 Adjustable impedance network and control circuit therefor
07/17/1985EP0148218A1 Method for adaptation of a transmission chain for audio signals.
07/16/1985CA1190617A1 High power resonance filters
07/10/1985EP0147499A2 Broadband impedance transformer and resonator
07/03/1985EP0147248A2 Cable networks and filters with interfacial losses
07/02/1985US4527136 Signal coupling apparatus
06/1985
06/26/1985EP0146339A2 Electrical signal separating device having isolating and matching circuitry
06/25/1985US4525691 Variable delay line
06/25/1985US4525688 Oscilloscope signal input circuit including an attenuator
06/19/1985EP0145419A2 Direct current blocking circuit and implantable device using same
06/19/1985EP0145076A2 Television receiver input circuit
06/18/1985CA1189146A1 Monitoring system for an lc filter circuit in an ac power network
06/11/1985US4523161 Programmable attenuator
06/06/1985WO1985002509A1 Apparatus for correcting frequency-dependent attenuation of the transmitting medium in signal transmission
06/05/1985EP0143493A2 Programmable thick film networks and method for making same
05/1985
05/28/1985US4520325 Phase shifters
05/22/1985EP0141833A1 Transmission lines
05/21/1985CA1187618A1 High speed data bus structure and system
05/21/1985CA1187571A1 Band pass filter
05/14/1985US4517535 High speed high power step attenuator method and apparatus
05/14/1985US4516312 Method for constructing delay circuits in a master slice IC
05/08/1985EP0140462A2 Temperature compensated capacitor
05/07/1985US4516092 Leadless filter component
05/07/1985US4516078 Variable frequency passband circuit
04/1985
04/24/1985EP0138438A2 Filter circuit tunable to microwave frequency, and implementation of the same
04/17/1985EP0137462A2 Integrated filter circuit
04/16/1985CA1185666A1 Electroacoustic network
04/10/1985EP0136869A2 A resistance ladder network
04/09/1985CA1185335A1 Integrated multi-stage electrical filter
04/02/1985US4509165 Miniaturized antenna duplexer using SAW filter
03/1985
03/27/1985EP0134950A2 High frequency directional coupler comprising a tubular core with printed coils
03/26/1985US4507630 Noise filter for connectors
03/26/1985US4507628 Delay line
03/26/1985US4507618 Compensation method and apparatus for an RC attenuator
03/20/1985EP0134556A1 An impedance element
03/19/1985US4506238 Hybrid circuit device
03/19/1985US4506236 Composite filter/differentiator
03/19/1985US4505032 Method of making a voltage divider
03/19/1985CA1184304A1 Apparatus for attenuating and/or amplifying a binary- represented signal
03/05/1985CA1183622A1 Diplexer for television tuning systems
02/1985
02/26/1985US4502026 Signal distributing apparatus
02/26/1985US4502025 High speed PIN diode switched antenna coupler and method
02/26/1985CA1183214A1 Electric filter equipment
02/13/1985EP0133080A1 Two-port impedance network functioning independently of the working frequency, and travelling wave amplifier using the same
02/13/1985EP0132785A2 Electrocardiographic signal transducer applied to a nuclear magnetic resonance tomograph
01/1985
01/31/1985WO1985000479A1 Adaptation of a transmission chain for audio signals
01/30/1985EP0132327A2 A planar electronic filter element and a connector embodying such a filter
01/29/1985US4496854 On-chip SQUID cascade
01/23/1985EP0132006A2 Decoupling capacitor integrated between an H.F. output line and an H.F. cavity
01/22/1985US4495458 Termination for high impedance attenuator
01/15/1985US4494084 Pin diode linear attenuator controlled by a companding DAC
01/15/1985US4494076 Signal input circuit with controlled input signal attenuation
01/08/1985US4493112 Antenna tuner discriminator
01/08/1985US4492937 Terminated switch