| Patents for H03H 7 - Multiple-port networks comprising only passive electrical elements as network components (15,104) |
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| 08/18/1981 | US4284490 R.F. Sputtering apparatus including multi-network power supply |
| 08/18/1981 | CA1107389A1 Television signal processing circuit including a trap circuit |
| 08/11/1981 | US4283741 Signal separation networks |
| 08/04/1981 | US4282402 Design of crossover network for high fidelity speaker system |
| 07/28/1981 | CA1106057A1 Electronic signal processing apparatus |
| 07/28/1981 | CA1106003A1 Surface acoustic wave devices |
| 07/22/1981 | EP0032332A1 Radiofrequency power divider, and radiofrequency devices, especially solid-state devices, using the same |
| 07/21/1981 | US4280089 Automatic incrementing attenuation arrangement |
| 07/21/1981 | US4280064 Signal isolator |
| 07/21/1981 | CA1105573A1 Signal cuber circuit |
| 07/07/1981 | CA1104713A1 Single uhf/vhf antenna system |
| 07/01/1981 | EP0031061A2 Blocking filter for appliances with carrier frequency utilisation in low-tension networks |
| 06/30/1981 | US4276523 High density filter connector |
| 06/30/1981 | US4276508 Electronic attenuator apparatus |
| 06/23/1981 | US4275368 EMC-/EMI-filter module |
| 06/23/1981 | US4275365 Branching equipment for CATV systems |
| 06/23/1981 | CA1103775A1 Hybrid for two-wire full-duplex transmission of digital signals |
| 06/16/1981 | US4273963 Automatic equalization for digital transmission systems |
| 06/09/1981 | US4272741 Inductive delay line and method of making |
| 05/26/1981 | CA1101949A1 Input transformer arrangement for use in a television receiver |
| 05/26/1981 | CA1101765A1 Process for etching holes |
| 05/19/1981 | US4268834 Single UHF/VHF antenna system |
| 05/19/1981 | US4268805 Citizens band broadcast band coupling circuit |
| 05/19/1981 | CA1101504A1 Wound multi-capacitor filter |
| 05/12/1981 | US4267535 Switching circuit consisting of CTD lines |
| 05/12/1981 | CA1101101A1 Variable response notch filter for machine resonance elimination in a servo control system |
| 05/05/1981 | US4266207 Coaxial cable band-pass filter |
| 05/05/1981 | US4266204 Delay line signal equalizer for magnetic recording signal detection circuits |
| 04/28/1981 | CA1100201A1 Programmable attenuator apparatus employing active fet switching |
| 04/28/1981 | CA1100200A1 Circuit for compensating harmonic currents in an electric consumer |
| 04/21/1981 | US4263614 Phase tracking loop circuit |
| 04/14/1981 | US4262268 Composite pi-section LC filter assembly and method of manufacture |
| 04/14/1981 | US4262263 Variable equalizer |
| 04/07/1981 | US4260966 High current filter connector with removable contact members |
| 04/07/1981 | US4260965 Fixed microwave attenuator having mounting hole passing through alumina porcelain substrate |
| 04/07/1981 | US4260963 4:1 Balun |
| 03/31/1981 | US4259741 Satellite relay system |
| 03/24/1981 | US4258340 Amplitude equalizer |
| 03/10/1981 | US4255724 Distortion-corrector for microwave tubes |
| 02/17/1981 | US4251783 Variable resonance type amplitude equalizing circuit |
| 02/10/1981 | CA1095600A1 Series feed-through capacitor |
| 02/04/1981 | EP0023295A1 Device for the even distribution of high-frequency energy over two consumers |
| 02/03/1981 | US4249147 Cavity filter and multi-coupler utilizing same |
| 02/03/1981 | US4249144 Controllable microwave attenuator |
| 01/14/1981 | EP0022300A1 Electromagnetic delay line |
| 01/06/1981 | US4243957 Universal equalizer |
| 12/30/1980 | US4242651 Wideband transformer apparatus |
| 12/30/1980 | CA1092668A1 High frequency wide band resonant circuit |
| 12/11/1980 | WO1980002783A1 Automatic equalization for digital transmission systems |
| 12/10/1980 | EP0020044A1 Equalizer arrangements |
| 12/02/1980 | CA1090885A1 Multi-channel radio relay systems |
| 11/25/1980 | US4236126 Variable RF attenuator |
| 11/18/1980 | US4234960 Antenna automatic tuning apparatus |
| 11/18/1980 | US4234807 Ladder device with weighting factor adjusting means |
| 11/11/1980 | US4233561 Automatic impedance matching conduit locator |
| 11/04/1980 | US4232279 Low noise charge coupled device transversal filter |
| 11/04/1980 | CA1089098A1 Transmission system for signal transmission by means of compressed delta modulations |
| 11/04/1980 | CA1089038A1 Controllable electronic resistance device |
| 10/21/1980 | US4229826 Wide band impedance matching device |
| 10/14/1980 | US4228544 Antenna system using antenna base impedance transforming means |
| 10/14/1980 | US4228492 Circuit arrangement and method for the compensation of harmonic currents |
| 10/14/1980 | US4228409 Transmission arrangement having an adjustable network |
| 10/07/1980 | CA1087258A1 Circuit for wire transmission of high frequency data communication pulse signals |
| 09/23/1980 | US4224587 Comb-line bandpass filter |
| 09/23/1980 | US4224583 Linear rf attenuator |
| 09/09/1980 | US4222016 High frequency transformer |
| 09/03/1980 | EP0014969A1 Input circuit for receiver-side line terminal apparatus of a telecommunication system |
| 08/19/1980 | US4218774 Automatic gain control circuit |
| 08/19/1980 | CA1084127A1 Adaptive equalizer with improved distortion analysis |
| 08/12/1980 | CA1083679A1 Automatic cable equalizer circuit |
| 08/05/1980 | US4216445 Variable resistance attenuator |
| 08/05/1980 | US4216444 Step adjustable attenuator |
| 08/05/1980 | CA1083227A1 Method and apparatus for performing binary equalization in voice-band phase-modulation modems |
| 07/29/1980 | US4215372 Television signal interference elimination circuit including a trap circuit |
| 07/29/1980 | US4215325 Minimal distortion video bandpass filter |
| 07/15/1980 | US4213106 Tuning apparatus and method of producing the same |
| 07/15/1980 | US4213065 Device for providing a selectively variable proportion of an electrical signal |
| 07/15/1980 | CA1081806A1 Signal bandpass filter apparatus |
| 07/01/1980 | US4210882 Delay network comprising a chain of all-pass sections |
| 07/01/1980 | US4210483 Apparatus for making an inductive delay line component |
| 07/01/1980 | CA1080807A1 Distortion adapter receiver having intersymbol interference correction |
| 06/25/1980 | EP0012742A1 Multiple-bridge, three-phase converter arrangement including voltage harmonics cancellation |
| 06/24/1980 | US4209758 Method and apparatus for the automatic matching of a transmitter to an antenna |
| 06/24/1980 | US4209757 Circuit for compensating harmonic currents in an electric consumer arrangement |
| 06/24/1980 | CA1080341A1 Attenuator circuit for ultrasonic testing |
| 06/17/1980 | US4208640 Attenuation equalizer for correcting a temperature and frequency-dependent cable attenuation |
| 06/17/1980 | US4208633 Current supply branching arrangement for separation of signal and supply currents |
| 06/10/1980 | US4207532 Frequency signal splitting circuit |
| 06/03/1980 | US4206428 Series notch filter and multicoupler utilizing same |
| 05/27/1980 | CA1078534A1 Contiguous channel multiplexer |
| 05/27/1980 | CA1078474A1 Antenna coupler |
| 05/27/1980 | CA1078467A1 Input impedance matching of a bipolar transistor employing a coaxial transformer |
| 05/27/1980 | CA1078458A1 Compensation indicator for attenuation probe |
| 05/20/1980 | US4204264 Harmonic cancellation for multi-bridge, three-phase converters |
| 05/20/1980 | US4204176 Variable equalizer |
| 05/13/1980 | US4203081 Passive circuit element for influencing pulses |
| 05/13/1980 | US4203009 Unbalanced/balanced converter circuits |
| 05/06/1980 | US4201962 Input transformer arrangement for use in a television receiver |
| 05/06/1980 | US4201960 Method for automatically matching a radio frequency transmitter to an antenna |
| 04/15/1980 | US4198612 Image analysis nonlinear adaptive filter for improving signal-to-noise ratio |