| Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673) |
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| 07/18/1995 | US5434541 Frequency translated filter for a micro-miniature radio receiver |
| 07/13/1995 | WO1995019073A2 Receiver having an adjustable bandwidth filter |
| 07/12/1995 | EP0662754A1 Automatic frequency control circuit |
| 07/06/1995 | DE4447142A1 Sendereferenzoszillator eines VSAT für Satellitenkommunikation Transmission reference oscillator of a VSAT satellite communications |
| 07/05/1995 | EP0661801A1 Quadrature modulator with adaptive suppression of carrier leakage |
| 07/04/1995 | US5430895 Transformer circuit having microstrips disposed on a multilayer printed circuit board |
| 07/04/1995 | CA2042544C High frequency, wide band, triple balanced mixer |
| 06/30/1995 | CA2139191A1 Transmit reference oscillator of a vsat for satellite communications |
| 06/28/1995 | EP0660507A1 Local oscillator |
| 06/28/1995 | EP0660504A1 Oscillator circuit |
| 06/27/1995 | US5428840 Monolithic double balanced microstrip mixer with flat conversion loss |
| 06/27/1995 | US5428839 Planar magic-tee double balanced mixer |
| 06/27/1995 | US5428838 Diode mixer implemented in a planar monolithic IC |
| 06/27/1995 | US5428837 Method and apparatus for reducing local oscillator leakage in integrated circuit receivers |
| 06/27/1995 | US5428836 Radio receiver for forming a baseband signal of time-varying frequencies |
| 06/22/1995 | WO1995017047A1 Radio transceiver comprising an arrangement for compensating for a dc component |
| 06/14/1995 | EP0658007A1 Circuit for the analog-digital conversion of IF-signals |
| 06/07/1995 | EP0656161A1 Apparatus and method for frequency translation in a communication device |
| 05/30/1995 | US5420646 Bandswitched tuning system having a plurality of local oscillators for a digital television receiver |
| 05/26/1995 | WO1995014339A1 Clock-recovery circuit |
| 05/25/1995 | CA2117935A1 All digital if-to-baseband signal converter |
| 05/24/1995 | EP0654895A2 An all digital if-to-baseband signal converter |
| 05/23/1995 | US5418815 Receiver adaptively operable for multiple signal transmission systems |
| 05/23/1995 | US5418489 Method of recovering a frequency modulated signal |
| 05/16/1995 | US5416805 Receiver for receiving frequency modulated signals and having a controlled acquisition band |
| 05/16/1995 | US5416449 Modulator with harmonic mixers |
| 05/11/1995 | WO1995012953A1 Satellite receiver with variable predetection bandwidth |
| 05/10/1995 | EP0591260B1 Arrangement for a modulator |
| 05/10/1995 | EP0400027B1 Method and apparatus for quadrature modulation |
| 05/09/1995 | US5414383 Four quadrant multiplier circuit and a receiver including such a circuit |
| 05/03/1995 | EP0651522A1 Image rejection frequency converter as multi-band receiver |
| 04/27/1995 | DE4340722C1 Device for suppressing a residual carrier produced during modulation at the transmitting end |
| 04/25/1995 | US5410747 Dual conversion transmitter |
| 04/25/1995 | US5410744 HF mixer stage having a common base circuit |
| 04/25/1995 | US5410743 Active image separation mixer |
| 04/25/1995 | US5410742 SAW electric part and frequency conversion circuit |
| 04/20/1995 | WO1995010879A1 Method of recovering a frequency modulated signal |
| 04/20/1995 | DE4335616A1 Satellite receiving installation |
| 04/18/1995 | US5408201 Frequency synthesizer using three subfrequency synthesizers for generating two different frequencies |
| 04/12/1995 | EP0648012A1 Power control for cartesian amplifiers |
| 04/05/1995 | EP0647016A1 Direct conversion receivers |
| 04/05/1995 | CN1101181A Feedback loop closure in a linear transmitter |
| 04/04/1995 | US5404378 Distortion compensating circuit |
| 03/22/1995 | EP0403661B1 Mixer |
| 03/21/1995 | US5400366 Quasi-synchronous detection and demodulation circuit and frequency discriminator used for the same |
| 03/15/1995 | EP0643477A2 Demodulation of an IF-signal by a sigma-delta converter |
| 03/14/1995 | US5398080 Television receiver for terrestrial broadcasting |
| 03/14/1995 | US5398002 Automatic frequency control system by quadrature-phase in frequency or phase demodulating system |
| 03/09/1995 | WO1995006983A1 A method for determining desired components of quadrature modulated signals |
| 03/07/1995 | US5396659 Direct-coupled FET frequency multiplier and mixer circuit |
| 03/07/1995 | US5396658 Radio frequency antenna and mixer array |
| 03/07/1995 | US5396656 Method for determining desired components of quadrature modulated signals |
| 03/07/1995 | US5396520 Digital RF receiver |
| 03/07/1995 | US5396196 Quadrature modular with adaptive suppression of carrier leakage |
| 03/07/1995 | US5396132 MESFET mixer circuit having a pulse doped structure |
| 03/02/1995 | WO1995006361A1 Dual-channel low current low noise block downconverter |
| 03/02/1995 | DE4328912A1 Tuning method for a superheterodyne receiver |
| 02/21/1995 | US5392460 Dual mode radiotelephone terminal selectively operable for frequency modulated or phase modulated operation |
| 02/21/1995 | US5391946 Frequency converting circuit apparatus |
| 02/15/1995 | EP0638994A1 Transmitter and power amplifier therefor |
| 02/14/1995 | US5390346 Small frequency step up or down converters using large frequency step synthesizers |
| 02/01/1995 | EP0636899A2 Doppler microwave sensor |
| 02/01/1995 | CA2128273A1 Doppler microwave sensor |
| 01/25/1995 | EP0635932A2 Low-distortion cascode circuit |
| 01/25/1995 | CN1097915A High frequency receiving apparatus |
| 01/18/1995 | EP0634835A2 Low voltage RF amplifier and mixer with single bias block and method |
| 01/11/1995 | EP0633655A1 Variable if transmitter arrangement |
| 01/10/1995 | US5381108 Automatic calibration of the quadrature balance within a cartesian amplifier |
| 01/05/1995 | WO1995001006A1 Apparatus and method for frequency translation in a communication device |
| 01/05/1995 | DE4321190A1 Push-pull mixer |
| 01/05/1995 | CA2140437A1 Apparatus and method for frequency translation in a communication device |
| 01/04/1995 | EP0632577A1 Multi-stage digital RF translator |
| 01/04/1995 | EP0632574A1 High spectral purity digital waveform synthesizer |
| 01/03/1995 | US5379458 Transformerless diode mixer |
| 01/03/1995 | US5379457 Low noise active mixer |
| 12/31/1994 | CA2126578A1 High spectral purity digital waveform synthesizer |
| 12/28/1994 | EP0631379A1 HF mixer stage in common base |
| 12/28/1994 | CN1027207C Biasing networks for balanced mixers |
| 12/22/1994 | WO1994029984A1 Process and arrangement for adjusting the local oscillators of a receiver in a multi-channel transmission system |
| 12/22/1994 | WO1994029949A1 Terrestrial and satellite television reception tuner |
| 12/22/1994 | WO1994029948A1 Direct conversion tuner |
| 12/20/1994 | US5375260 Receiver unit for wireless microphone applications |
| 12/20/1994 | US5375258 Circuit for generating signals in phase quadrature and associated method therefor |
| 12/14/1994 | EP0629040A1 Method and apparatus for IF demodulation of a high frequency input signal |
| 12/13/1994 | US5373265 Modulator having oscillator for generating IF and RF signals by division and up-conversion |
| 12/08/1994 | WO1994028682A2 All-wave television channel selector with frequency synthesizer |
| 12/06/1994 | US5371902 Method and apparatus for recovering baseband signals from in-phase and quadrature-phase signal components having phase error therebetween |
| 11/30/1994 | EP0472589B1 A channel frequency generator for use with a multi-frequency output generator |
| 11/29/1994 | US5369795 High frequency transformer and mixer using the same |
| 11/29/1994 | US5369794 Adaptive oscillator frequency feedthrough cancellation in mixer circuit |
| 11/29/1994 | US5369790 Radio receiver |
| 11/29/1994 | US5369374 Differential detection demodulator |
| 11/22/1994 | CA1333193C Local oscillator feedthru cancellation circuit |
| 11/10/1994 | WO1994026037A1 Self-oscillating mixer circuits and methods therefor |
| 11/09/1994 | EP0623993A2 Four quadrant multiplier circuit and a receiver including such a circuit |
| 11/09/1994 | EP0623259A1 An integrated circuit including a surface acoustic wave transformer and a balanced mixer |
| 11/09/1994 | CN1094874A Converter |
| 11/08/1994 | CA2069104C Frequency converter for a radio communications system |
| 11/01/1994 | US5361409 FET mixer having transmission line transformer |
| 11/01/1994 | US5361408 Direct conversion receiver especially suitable for frequency shift keying (FSK) modulated signals |