| Patents for H03B 19 - Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source (1,662) |
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| 08/13/1991 | US5040197 Fractional frequency divider for providing a symmetrical output signal |
| 08/07/1991 | WO1991012666A1 Phase-locked circuit and frequency multiplier obtained |
| 07/09/1991 | CA1286002C Frequency synthesis method and a synthesizer apparatus using this method |
| 07/02/1991 | US5028886 Swept frequency slope correction system for synthesized sweeper |
| 06/27/1991 | WO1991009317A2 Comb generator, device and process for calibrating measurement sections |
| 06/25/1991 | US5027107 Frequency sensor |
| 06/11/1991 | US5023571 Digitally-synchronized sweep signal source |
| 05/30/1991 | WO1991007824A1 Frequency synthesizer |
| 05/28/1991 | US5020148 Image suppression harmonic frequency converter operating in the microwave field |
| 05/14/1991 | US5016202 Interpolated swept parameter system for synthesized sweeper |
| 05/14/1991 | CA1284234C Apparatus including resonant-tunneling device having multiple-peak current-voltage characteristics |
| 04/16/1991 | US5008571 Method and apparatus for dividing high frequency analog signals |
| 04/09/1991 | CA1282871C Resonant-tunneling device, and mode of device operation |
| 04/03/1991 | EP0420553A2 Subharmonic mixer |
| 04/03/1991 | EP0420082A2 Digitally synchronized sweep signal source |
| 03/21/1991 | DE3930126A1 Frequency doubling circuit with integrated differential amplifier - having inputs supplied with identical voltage levels, but one fed with initial frequency to be doubled |
| 03/12/1991 | US4999697 Sequential-quenching resonant-tunneling transistor |
| 02/27/1991 | EP0414260A2 Frequency synthesizer for implementing generator of highly pure signals and circuit devices, such as VCO, PLL and SG, used therein |
| 02/26/1991 | US4996505 Frequency triplicator for microwaves |
| 01/30/1991 | EP0245337B1 Frequency doubling oscillator and mixer circuit |
| 01/16/1991 | EP0228433B1 Frequency dividing arrangements |
| 01/09/1991 | EP0407263A1 Receiving system for TV signals which are retransmitted by satellites |
| 01/09/1991 | EP0406917A1 Oscillator |
| 01/08/1991 | US4983978 Multi-frequency comb generator for radar and the like |
| 01/05/1991 | WO1991000646A1 Receiving system for satellite-transmitted television signals |
| 01/05/1991 | CA2035445A1 System for receiving tv signals transmitted by satellite |
| 01/02/1991 | EP0231391B1 Dielectric-resonator-controlled oscillator with frequency multiplication |
| 12/13/1990 | DE4018617A1 Frequency converter for quadrature modulator or demodulator |
| 12/13/1990 | DE4018616A1 Frequency converter for quadrature modulator or demodulator - using heterodyne signal generator providing quadrature signals with 90 degree phase-shift |
| 12/11/1990 | US4977379 Differential pair, push-push oscillator |
| 12/04/1990 | US4975661 Gunn triode device, frequency divider and oscillator using this Gunn device |
| 11/06/1990 | US4968959 Microwave frequency divider |
| 10/30/1990 | US4967160 Frequency multiplier with programmable order of multiplication |
| 10/23/1990 | US4965531 Frequency synthesizers having dividing ratio controlled by sigma-delta modulator |
| 09/04/1990 | US4955079 Waveguide excited enhancement and inherent rejection of interference in a subharmonic mixer |
| 08/01/1990 | EP0380168A1 Integrated semiconductor device comprising a field-effect transistor with an isolated gate biased at a high level |
| 07/04/1990 | EP0376718A1 A semiconductor device |
| 07/04/1990 | EP0376388A1 Integrated circuit device comprising a frequency divider |
| 06/07/1990 | DE3840435A1 Frequency divider for microwave range |
| 06/05/1990 | US4931921 Wide bandwidth frequency doubler |
| 05/16/1990 | EP0225218B1 Frequency synthesis method and synthesis apparatus using this method |
| 04/04/1990 | EP0361295A1 Microwave frequency divider |
| 04/03/1990 | US4914613 Frequency synthesis method and a synthesizer apparatus using this method |
| 03/21/1990 | EP0359508A2 Sequential-quenching resonant-tunneling transistor |
| 03/21/1990 | CN1040718A Miniature crystal oscillator |
| 02/20/1990 | US4902912 Apparatus including resonant-tunneling device having multiple-peak current-voltage characteristics |
| 01/30/1990 | US4897618 Harmonic frequency selecting circuit |
| 12/27/1989 | EP0348283A1 Frequency multiplier with a programmable coefficient |
| 10/10/1989 | US4873496 Tuned oscillator |
| 10/04/1989 | EP0335389A2 Frequency multiplier for microwaves |
| 09/05/1989 | US4864645 Harmonically pumped monolithic planar doped barrier mixer |
| 09/05/1989 | US4864636 Crystal controlled transmitter |
| 08/29/1989 | US4862515 Frequency dividing arrangements |
| 08/29/1989 | CA1258890A1 Dielectric resonator controlled oscillator having a raised frequency multiplying efficiency |
| 08/23/1989 | EP0329077A2 SSB mixer in microstrip fashion |
| 08/01/1989 | US4853753 Resonant-tunneling device, and mode of device operation |
| 07/25/1989 | US4851783 Method of and apparatus for digitally setting a control frequency |
| 07/11/1989 | CA1257340A1 Frequency multiplier for high-frequency signals |
| 07/05/1989 | EP0322612A2 Microwave image suppression harmonic frequency converter |
| 06/21/1989 | EP0320825A2 Yig tuned oscillator |
| 06/14/1989 | EP0320110A2 Memory device comprising a resonant-tunneling semiconductor diode and mode of operation |
| 06/13/1989 | US4839607 Frequency-doubling amplifying surface wave receiver |
| 05/17/1989 | CN2037901U 小型晶体振荡器 Small crystal oscillator |
| 05/16/1989 | US4831340 Harmonic multiplier using resonant tunneling device |
| 04/05/1989 | EP0309714A2 Frequency multiplying, amplifying surface wave receiver |
| 03/08/1989 | EP0306370A1 Gunn triode device, frenquency divider and oscillator using this Gunn device |
| 03/07/1989 | US4810976 Frequency doubling oscillator and mixer circuit |
| 02/21/1989 | US4806891 Broadband signal frequency multiplier apparatus using dielectric resonator means |
| 01/04/1989 | EP0297778A2 Apparatus including resonant-tunneling device having multiple-peak current-voltage characteristics |
| 01/03/1989 | CA1248188A1 Dc voltage and high frequency signal supply for a diode |
| 12/29/1988 | DE3813865A1 Active 360@ phase shifter having continuously adjustable phase |
| 11/08/1988 | US4783638 Frequency doubling oscillator working at ultra-high frequencies |
| 11/01/1988 | CA1244097A1 Frequency multiplier |
| 10/19/1988 | EP0287053A2 Method and circuit arrangement for the digital tuning of a control frequency |
| 09/29/1988 | DE3709357A1 Microwave oscillator |
| 09/29/1988 | DE3709356A1 Microwave oscillator |
| 08/16/1988 | US4764741 Voltage and high frequency signal supply for a diode mounted in a waveguide |
| 08/09/1988 | US4763084 Push-push dielectric resonator oscillator |
| 07/12/1988 | US4757278 Low noise cryogenic dielectric resonator oscillator |
| 06/28/1988 | US4754244 Distributed balance frequency multiplier |
| 06/28/1988 | US4754236 Frequency-doubling voltage-controlled oscillator |
| 06/07/1988 | US4749949 Self biasing diode microwave frequency multiplier |
| 05/04/1988 | EP0266198A2 A distributed balanced frequency multiplier |
| 04/05/1988 | US4736168 Dielectric resonator controlled oscillator having a raised frequency multiplying efficiency |
| 03/29/1988 | US4734591 Frequency doubler |
| 03/22/1988 | CA1234414A1 Frequency multiplying circuit |
| 02/23/1988 | US4727340 Comb generators |
| 02/16/1988 | USRE32605 Frequency divider |
| 02/02/1988 | US4723113 Very high frequency harmonic generator |
| 12/23/1987 | EP0250301A1 Frequency doubler oscillator operating at microwave frequencies |
| 12/16/1987 | EP0248962A2 Comb generators |
| 12/08/1987 | US4712073 Frequency multiplying circuit |
| 12/02/1987 | EP0247749A2 Push-push dielectric resonator oscillator |
| 11/19/1987 | EP0245337A1 Frequency doubling oscillator and mixer circuit. |
| 11/11/1987 | EP0244988A1 Self biasing diode microwave frequency multiplier |
| 10/21/1987 | EP0242292A1 Frequency-doubling voltage-controlled oscillator |
| 09/22/1987 | US4695940 Dynamic frequency divider with a mixer stage and an amplifier |
| 09/08/1987 | US4692714 Single resonator push-push oscillator |
| 08/25/1987 | US4689806 In a communications receiver |
| 08/04/1987 | CA1225126A1 Microstrip - slotline frequency halver |