| Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673) |
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| 07/10/1979 | US4160953 Self-oscillation mixer circuits |
| 07/03/1979 | US4160213 Mixer injection voltage compensation circuit |
| 05/08/1979 | US4153876 Charge transfer device radio system |
| 05/01/1979 | US4152653 Integrated mixer arrangement |
| 05/01/1979 | US4152652 Apparatus for and method of measuring radio frequency signals |
| 04/03/1979 | US4147984 Dual digital processor transceiver |
| 03/20/1979 | US4145656 Transceiver capable of sensing a clear channel |
| 03/20/1979 | US4145655 Digitally transmitting transceiver |
| 03/06/1979 | US4143387 Signal mixer including resistive and normal gate field-effect transistor |
| 03/06/1979 | CA1050120A1 Diode ring mixer |
| 03/06/1979 | CA1050119A1 Double quadrature fm receiver |
| 02/20/1979 | US4140975 Highly selective programmable filter module |
| 01/30/1979 | US4137499 Signal strength measuring transceiver |
| 01/23/1979 | US4136288 Frequency translation circuits |
| 01/23/1979 | CA1046817A1 Process and apparatus for the manufacture of filled, closed containers |
| 01/02/1979 | US4132952 Multi-band tuner with fixed broadband input filters |
| 01/02/1979 | US4132951 Digital processor controlled radio system |
| 01/02/1979 | US4132950 Clarifying radio receiver |
| 12/19/1978 | US4130806 Filter and demodulation arrangement |
| 11/21/1978 | US4126831 Electronic phase detector circuit |
| 11/14/1978 | US4125810 Broadband high frequency baluns and mixer |
| 10/24/1978 | CA1041183A1 Balanced dual output mixer circuit |
| 10/03/1978 | US4118670 Image phased and idler frequency controlled mixer formed on an integrated circuit dielectric substrate |
| 09/19/1978 | US4115737 Multi-band tuner |
| 09/05/1978 | US4112377 C. B. converter |
| 09/05/1978 | US4112375 Tunable selective super heterodyne receiver |
| 09/05/1978 | US4112374 Doubly balanced mixer with optimized dynamic range |
| 09/05/1978 | US4112373 Self-excited mixer circuit using field effect transistor |
| 08/15/1978 | CA1036674A1 Frequency-changer structures |
| 07/04/1978 | US4099126 Frequency converter apparatus |
| 06/13/1978 | US4094124 Process and apparatus for the manufacture of filled, closed containers |
| 05/16/1978 | US4090145 Digital quadrature demodulator |
| 05/16/1978 | US4090139 Complementary symmetry FET mixer circuits |
| 03/21/1978 | US4080573 Balanced mixer using complementary devices |
| 03/14/1978 | US4079321 Dual diode high conversion efficiency signal mixer |
| 12/13/1977 | US4063177 Double conversion radio receiver |
| 12/13/1977 | US4063176 Broadband high frequency mixer |
| 12/06/1977 | US4061990 Frequency combining circuit |
| 12/06/1977 | US4061980 Radio receiver with plural converters and frequency control |
| 11/15/1977 | US4058771 Double-balanced frequency converter |
| 11/01/1977 | US4056787 Self-oscillating mixer circuit |
| 10/18/1977 | US4054875 Microwave circuit for operating on microwave radiations |
| 09/20/1977 | US4050024 Sideband detector |
| 07/12/1977 | US4035732 High dynamic range receiver front end mixer requiring low local oscillator injection power |
| 06/28/1977 | US4032851 Complementary symmetry fet mixer circuits |
| 06/28/1977 | US4032849 Planar balanced mixer/converter for broadband applications |
| 06/21/1977 | US4031472 Mixer circuit |
| 06/07/1977 | US4028650 Microwave circuits constructed inside a waveguide |
| 05/31/1977 | US4027242 Double superheterodyne multichannel receiver with a phase-locked loop frequency synthesizer |
| 05/17/1977 | US4024461 FM discriminator |
| 02/15/1977 | US4008438 Rat-race mixer circuit |
| 12/28/1976 | US4000469 Combination waveguide and stripline downconverter |
| 12/21/1976 | US3999130 Automatic frequency translator for use with a delay/amplitude equalizer |
| 11/16/1976 | US3992674 Balanced dual output mixer circuit |
| 11/09/1976 | US3991373 Input circuit for a microwave receiving system |
| 09/28/1976 | US3983489 Doubling mixer |
| 09/21/1976 | US3982109 Circuit arrangement for the formation of a sum and/or difference signal |
| 08/24/1976 | US3976944 Bias optimized FET mixer for varactor tuner |
| 08/03/1976 | US3973204 YIG tuned mixer |
| 06/15/1976 | US3963989 Mixer stage for microwave receivers |
| 06/01/1976 | US3961264 Linear frequency converter with gain independent of circuit parameters |
| 06/01/1976 | US3961262 FM receiver and demodulation circuit |
| 04/13/1976 | US3950703 Microcircuit reverse-phased hybrid ring mixer |
| 04/06/1976 | US3949306 High frequency amplifier with frequency conversion |
| 03/30/1976 | US3947782 Diode ring mixer |
| 03/30/1976 | US3947629 Television receiver I. F. circuitry |
| 03/16/1976 | US3944931 Multi-channel frequency converter having automatic control |
| 03/09/1976 | US3943450 Frequency converting device for RF signals |
| 03/02/1976 | US3942120 SWD FM receiver circuit |
| 02/24/1976 | US3940697 Multiple band scanning radio |
| 02/17/1976 | US3939430 Integrated circuit, image and sum enhanced balanced mixer |
| 02/17/1976 | US3939429 Tunable high frequency input circuit for a television receiver that tunes both VHF and UHF channels and can be readily integrated |
| 01/06/1976 | US3931578 Multiple frequency band receiver tuner system using single, non-bandswitched local oscillator |