| Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673) |
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| 10/27/1992 | US5159705 Frequency synthesizer circuit |
| 10/20/1992 | US5157786 Biasing networks for balanced mixers |
| 10/07/1992 | EP0507525A1 Radio frequency modulators |
| 10/07/1992 | EP0506727A1 A method and a device for radio receivers if (intermediate frequency) signal detection. |
| 10/06/1992 | US5153469 Biasing network for use with field effect transistor ring mixer |
| 09/30/1992 | EP0314753B1 Suspended stripline rat race mixer with simplified i.f. extraction |
| 09/29/1992 | US5151625 High frequency BiMOS linear V-I converter, voltage multiplier, mixer |
| 09/22/1992 | CA1307831C Zero if receiver |
| 09/16/1992 | EP0504015A1 FM receiver with controlled capture range |
| 09/10/1992 | DE4107112A1 Microwave mixer with 2 mixers and hybrid coupler - has mixer stages on opposite major surfaces of dielectric substrate |
| 09/09/1992 | EP0502449A1 Frequency converter |
| 09/09/1992 | CA2062343A1 Controlled lock band frequency modulated signal receiver |
| 09/02/1992 | EP0501827A2 Multiplying circuit |
| 09/02/1992 | EP0501740A2 Phase and gain error control system for use in an I/Q direct conversion receiver |
| 09/01/1992 | US5144256 Method and apparatus for demodulating a GMSK signal |
| 08/25/1992 | US5142697 Balanced high-frequency mixer having a balun circuit |
| 08/25/1992 | US5142220 Multistage single-sideband shifter |
| 08/18/1992 | US5140706 Transmission-line transformer device for double-balanced miner |
| 08/18/1992 | US5140705 Center-tapped coil-based tank circuit for a balanced mixer circuit |
| 08/18/1992 | US5140277 Polarization-independent receiver |
| 08/18/1992 | US5140198 Image canceling mixer circuit on an integrated circuit chip |
| 08/12/1992 | EP0498221A1 Frequency doubling and mixing circuit |
| 08/04/1992 | US5136720 Matrixed mixer |
| 07/29/1992 | EP0496621A2 System for controlling phase and gain errors in an I/Q direct conversion receiver |
| 07/22/1992 | EP0495598A1 Radio frequency mixer circuits |
| 07/21/1992 | CA1305526C Wristwatch receiver architecture |
| 07/07/1992 | US5128966 System for demodulating frequency- or phase-modulated signals by quadrature-phase |
| 07/02/1992 | DE4143065A1 VHF FM receiver with low component count - incorporates frequency-selective RF amplifier deriving power supply from emitter of crystal-filtered IF amplifier |
| 06/30/1992 | US5127102 Radio frequency mixer circuits |
| 06/25/1992 | DE4041634A1 Digital frequency multiplex signal generation for TV signal transmission - using digital filter after A=D converter operating at same sampling rate as following filters for frequency division |
| 06/24/1992 | EP0258332B1 Method and device for converting the frequency of frequency modulated signals |
| 06/23/1992 | US5125111 Resistive planar ring double-balanced mixer |
| 06/16/1992 | US5122879 Television synchronous receiver with phase shifter for reducing interference from a lower adjacent channel |
| 06/16/1992 | US5122757 Digital frequency generator |
| 06/16/1992 | CA1303687C2 Subscriber unit for wireless digital telephone system |
| 06/03/1992 | EP0488257A1 Frequency conversion circuit |
| 05/20/1992 | EP0486095A1 Digital receiver |
| 05/19/1992 | US5115317 Tuning apparatus for a television receiver including selectively activated amplifier and local oscillator circuits |
| 05/12/1992 | US5113094 Method and apparatus for increasing the high frequency sensitivity response of a sampler frequency converter |
| 05/06/1992 | WO1992008294A1 Receiver with automatic frequency control |
| 05/05/1992 | US5111202 Extended dynamic range quadrature detector with parallel channel arrangement |
| 05/05/1992 | US5111162 Digital frequency synthesizer having AFC and modulation applied to frequency divider |
| 04/28/1992 | US5109544 Paging receiver with automatic frequency control |
| 04/28/1992 | US5109531 Sideband receiver with pilot lock |
| 04/28/1992 | US5108334 Dual down conversion GPS receiver with single local oscillator |
| 04/21/1992 | CA1299250C Frequency difference detector (fdd) and a carrier modulated receiver including such a fdd |
| 04/21/1992 | CA1299249C Receiver comprising parallel signal paths |
| 04/15/1992 | EP0480494A1 Self-oscillating microwave frequency converter comprising a dielectric resonator |
| 04/15/1992 | EP0480145A1 Modulator and mixer stage |
| 04/11/1992 | WO1992007422A1 Active filter circuit |
| 04/11/1992 | CA2069639A1 Active filter circuit |
| 03/31/1992 | US5101418 Digital time-multiplexed quadrature frequency upconverter |
| 03/26/1992 | DE4130705A1 Heterodyne frequency-changer - has three differential amplifier stages in control circuit with loop including low pass filter or regulating amplifier with 0.5 duty ratio |
| 03/18/1992 | CN1059627A Biasing networks for balanced mixers |
| 03/11/1992 | EP0474615A2 D.C. offset compensation in a radio receiver |
| 03/11/1992 | EP0474294A1 Polarization-independent receiver |
| 03/11/1992 | CN1015852B Frequency-changing stage having precise closed-loop control of amplitude of injection signal thereof |
| 03/10/1992 | US5095536 Direct conversion receiver with tri-phase architecture |
| 03/05/1992 | WO1992003873A1 Mixer with a double barrier resonant tunnelling diode |
| 03/03/1992 | US5093922 Receiving apparatus for receiving a bs-if signal converted into a superhigh band or uhf band |
| 03/01/1992 | WO1992004773A1 Transient suppression circuit for a time domain duplex transceiver |
| 02/26/1992 | EP0471968A2 Method of processing a digital frequency multiplexed signal and for decomposing it |
| 02/26/1992 | EP0471952A2 Transmitter- and multiple conversion superhet receiver for a telecommunication device |
| 02/25/1992 | US5091730 Pulse radar and components therefor |
| 02/19/1992 | EP0471412A2 Receivers for frequency modulated transmissions |
| 02/05/1992 | EP0469898A2 Transmitter with dual conversion |
| 02/05/1992 | EP0469169A1 Frequency-conversion mixer |
| 02/04/1992 | US5086512 Compensation system for dynamically tracking and nulling local oscillator feedthrough |
| 01/23/1992 | DE4041354C1 LF voltage amplifying output stage - has control grid of auxiliary valve connected to anode of pentode via capacitor |
| 01/21/1992 | US5083050 Modified cascode mixer circuit |
| 01/15/1992 | EP0466084A1 SAW electric part and frequency conversion circuit |
| 01/15/1992 | EP0426812A4 Gallium-arsenide switching mixer |
| 01/08/1992 | EP0464608A1 High frequency, wide band, triple balanced mixer |
| 01/07/1992 | CA1294005C Apparatus and method for phase noise and post tuning drift cancellation |
| 12/31/1991 | US5077835 Receiver circuit |
| 12/18/1991 | CN1057137A Frequency locking method for frequency converter of synthesizing type |
| 12/17/1991 | US5073977 High frequency broad-band mixing circuit including an electrolytic capacitor in parallel with a local oscillator input port |
| 12/17/1991 | CA1293302C Gain and phase correction in a dual branch receiver |
| 12/03/1991 | US5070376 Semiconductor device |
| 11/26/1991 | US5068918 Receiver for terrestrial am and satellite fm-tv broadcasting signals |
| 11/19/1991 | WO1991018445A1 Frequency converter for a radio communications system |
| 11/19/1991 | US5067141 Interpolator for varying a signal sampling rate |
| 10/30/1991 | EP0454266A2 Receiver comprising a circuit for estimating frequency offset |
| 10/23/1991 | EP0400027A4 Method and apparatus for quadrature modulation |
| 10/22/1991 | US5060299 Radio frequency mixer circuit utilizing interface transformers and switching diodes |
| 10/22/1991 | US5060298 Monolithic double balanced mixer with high third order intercept point employing an active distributed balun |
| 10/22/1991 | US5060297 TVRO receiver system with tracking filter for rejection of image frequencies |
| 10/08/1991 | US5056115 Device for the division, at an optimum sampling rate, of a passband signal into its components on two carriers in quadrature |
| 10/08/1991 | CA1290403C Quadrature receiver |
| 10/02/1991 | EP0448835A1 Phase splitter |
| 10/01/1991 | US5054118 Balanced mixer utilizing filters |
| 10/01/1991 | US5053717 FSK demodulator |
| 10/01/1991 | US5053651 Deglitched digital mixer circuit |
| 09/25/1991 | CN1054865A Waveguide-type fet mixer |
| 09/24/1991 | US5052050 Direct conversion FM receiver |
| 09/10/1991 | WO1991014312A1 Offset frequency converter for phase/amplitude data measurement receivers |
| 09/10/1991 | CA2077656A1 Offset frequency converter for phase/ amplitude data measurement receivers |
| 08/28/1991 | EP0443668A2 Image rejection frequency converter provided in planar technology |
| 08/27/1991 | US5043609 UHF band transistor mixer circuit |
| 08/13/1991 | US5039891 Planar broadband FET balun |