| Patents for H03H 7 - Multiple-port networks comprising only passive electrical elements as network components (15,104) |
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| 03/11/1987 | EP0214110A1 Loss-impaired filter apparatus for suppressing radio frequency interference on a two-wire line |
| 03/10/1987 | US4649356 Compactly constructed electromagnetic delay line |
| 03/04/1987 | EP0212674A2 Noise suppressing circuit with gain control |
| 03/04/1987 | EP0212105A2 Circuit arrangement to control the sound volume in a motor car in dependence upon the speed of it |
| 03/03/1987 | US4647868 Push-pull radio-frequency power splitter/combiner apparatus |
| 03/03/1987 | US4647843 Trimming resistances in symmetrical polyphase networks |
| 02/25/1987 | CN86203054U Coupling network of active receiving antenna for all channel television |
| 02/17/1987 | US4644260 Coupler with coupled line used to cancel finite directivity |
| 02/10/1987 | US4642691 Television signal input filter |
| 02/10/1987 | US4642589 Feed through filter having an insulated bush for mounting filter in a bulkhead |
| 02/10/1987 | US4642588 Method for adjustment of variable delay line |
| 02/04/1987 | EP0210783A2 Pin diode switched RF step attenuator |
| 02/04/1987 | EP0210746A2 Impedance matching arrangement |
| 02/04/1987 | EP0210606A2 Circuit for the decoupled combining of the output powers of several high-frequency power emitters |
| 02/03/1987 | US4641114 Thick film delay line comprising a plurality of stacked delay assemblies formed by a printing process |
| 02/03/1987 | US4641112 Delay line device and method of making same |
| 01/29/1987 | WO1987000710A1 Nonvolatile reprogrammable electronic potentiometer |
| 01/29/1987 | DE3526461A1 Resistor chain |
| 01/28/1987 | EP0209931A2 Equaliser with adjustable band filters and a digital filter suitable for use in the equaliser |
| 01/27/1987 | US4639935 Apparatus for correcting frequency-dependent attenuation of the transmitting medium in signal transmission |
| 01/27/1987 | US4639696 Delay line |
| 01/21/1987 | EP0208984A1 Method for the automatic impedance matching of a transmitter with an antenna |
| 01/20/1987 | US4638272 Lossy transmission line using spaced ferrite beads |
| 01/20/1987 | US4638253 Mutual inductance NMR RF coil matching device |
| 01/17/1987 | CN85102345A Integrated electric filter circuit |
| 01/13/1987 | US4636913 Temperature compensated capacitor |
| 01/13/1987 | US4636752 Noise filter |
| 01/07/1987 | EP0207571A2 Adjustment-free low-pass filter for a video recorder |
| 01/06/1987 | US4635005 Quadrupole for matching of a reactance, independently of the operating frequency |
| 01/06/1987 | CA1216356A1 Filter for subscriber control system |
| 01/06/1987 | CA1216335A1 Voltage dividing resistor device |
| 12/31/1986 | CN85105008A Phase shifting devices |
| 12/30/1986 | EP0205563A1 System for selectively coupling a plurality of data stations into a single communications path. |
| 12/23/1986 | US4631512 Voltage dividing resistor device |
| 12/23/1986 | US4631504 Impedance conversion transformer |
| 12/17/1986 | EP0205182A1 Adjustable lossy delay equalizer having at least one fixed delay point |
| 12/16/1986 | US4630010 Low pass T-section digital phase shifter apparatus |
| 12/03/1986 | EP0203343A2 Trap circuit with two variable inductors |
| 12/02/1986 | US4626818 Multilayer-alumina substrate, in organic glaze, conductor pattern and second inorganic glaze |
| 11/25/1986 | US4625184 Surface acoustic wave device with impedance matching network formed thereon |
| 11/12/1986 | EP0200884A2 Push-pull radio-frequency power splitter/combiner apparatus |
| 11/05/1986 | EP0200592A1 Static switch with manual control |
| 11/04/1986 | US4621244 Broadband variable attenuator using transmission lines series coupled by adjustable pin diodes |
| 10/28/1986 | US4620165 Electrical suppressor filter |
| 10/28/1986 | US4620164 Variable delay line having linking electrode with depressions therein for snug engagement of moveable contact |
| 10/22/1986 | EP0198526A2 Thin film power coupler |
| 10/08/1986 | EP0196413A1 Low or high pass shelving filter |
| 10/01/1986 | CN86102168A Thin film power coupler |
| 09/30/1986 | US4614921 Low pass π section digital phase shifter apparatus |
| 09/30/1986 | US4614911 Balanced modulator circuit |
| 09/24/1986 | EP0195649A2 Broad band, thin film attenuator and method for construction thereof |
| 09/23/1986 | CA1211799A1 Apparatus for correcting frequency-dependent attenuation of the transmitting medium in signal transmission |
| 09/17/1986 | EP0104220B1 Supply circuit included in a dc-magnetized hybrid transformer |
| 09/16/1986 | US4612669 Antenna matching system |
| 09/16/1986 | CA1211517A1 Correlated signal processor and modulator |
| 09/10/1986 | EP0194133A2 Bond wire transmission line |
| 09/09/1986 | US4611185 Electrical noise filter |
| 08/27/1986 | EP0192257A2 Electronic resistance adjustment circuit and audio installation comprising it |
| 08/26/1986 | US4608467 Switch device |
| 08/05/1986 | US4604593 π-section digital phase shifter apparatus |
| 07/29/1986 | US4603310 T-section digital phase shifter apparatus |
| 07/23/1986 | EP0188223A1 Delay equalizer |
| 07/23/1986 | EP0187983A1 Filter ciruit including Zn0 overvoltage arresters |
| 07/23/1986 | EP0187771A1 High frequency transformer. |
| 07/23/1986 | CN85106858A Mutual inductance nmr rf coil matching device |
| 07/22/1986 | US4602227 Coaxial LC phase-shifter for phase-controlled television broadcast switching circuit |
| 07/17/1986 | WO1986004195A1 System for selectively coupling a plurality of data stations into a single communications path |
| 07/16/1986 | EP0187560A1 Matching device for a HF antenna |
| 07/15/1986 | US4600903 Gain control compensation for bandpass filter with variable bandwidth |
| 07/09/1986 | EP0186806A1 Lossy and adjustable delay equalizer having at least one fixed delay point |
| 07/02/1986 | EP0186524A2 Line filter |
| 07/02/1986 | CN85105416A Hybrid wideband power divider / synthesizer |
| 07/01/1986 | US4598396 Duplex transmission mechanism for digital telephones |
| 06/11/1986 | EP0129542A4 Cmos circuit using transmission line interconnections. |
| 05/28/1986 | EP0182764A2 Electromechanical film and procedure for manufacturing same |
| 05/27/1986 | US4591939 Waveform equivalent circuit |
| 05/27/1986 | US4591814 Electronic component comprising printed circuit elements disposed on a folded tape and method of making such component |
| 05/20/1986 | US4590417 Voltage controlled diode attenuator |
| 05/20/1986 | US4590334 Supply circuit included in a DC-magnetized hybrid transformer |
| 05/07/1986 | EP0180121A2 Mutual inductance NMR RF coil matching device |
| 05/07/1986 | EP0180065A1 Adjustable delay time equalizer having a parabolic course of the group delay time |
| 05/06/1986 | CA1204176A1 Trimming resistances in symmetrical polyphase networks |
| 04/22/1986 | US4584544 Bandswitched interstage coupling network including a high side coupled capacitor |
| 04/16/1986 | EP0177760A1 Beads attenuator suppressing unwanted radiation, in particular in the short wave and ultra short wave range |
| 04/16/1986 | EP0177675A2 High-frequency broadband coupler |
| 04/15/1986 | US4583235 Self-adjusting equalizer configuration which automatically adjusts to the cable length |
| 04/15/1986 | US4582659 Method for manufacturing a fusible device for use in a programmable thick film network |
| 04/15/1986 | US4581795 Temperature compensated capacitor |
| 04/15/1986 | CA1203295A1 Compensation method and apparatus for an rc attenuator |
| 04/09/1986 | EP0177069A1 Arrangement for combining the output signals from a plurality of transmitters tuned to the same frequency |
| 04/08/1986 | US4581595 Phase shift network with minimum amplitude ripple |
| 04/01/1986 | US4580161 Cable television subscriber control system including addressable filters having a variable pole |
| 03/25/1986 | US4578772 Voltage dividing circuit |
| 03/25/1986 | US4578702 CATV tap-off unit with detachable directional coupler |
| 03/25/1986 | US4578653 Frequency selective filter circuit |
| 03/25/1986 | CA1202383A1 Thick film delay line |
| 03/18/1986 | US4577168 For rejecting a predetermined band of signal frequencies |
| 03/18/1986 | CA1202093A1 Signal coupling apparatus |
| 03/12/1986 | EP0053176B1 Wide band directional coupler |
| 03/12/1986 | CN85201903U Coupling network for all-channel tv antenna |