| Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673) |
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| 05/09/2000 | US6061555 Method and system for ensuring reception of a communications signal |
| 05/09/2000 | US6061551 Method and system for down-converting electromagnetic signals |
| 05/04/2000 | WO2000025494A1 Method and system for adjusting spurious lines of an output frequency spectrum in a sideband frequency translating device |
| 05/04/2000 | WO2000025421A1 Method and arrangement for correcting phase error in linearization loop of power amplifier |
| 05/04/2000 | DE19952249A1 Up-converter for integrated circuit testing, has several mixers, with filters removing difference frequency components |
| 05/04/2000 | CA2311821A1 Method and arrangement for correcting phase error in linearization loop of power amplifier |
| 05/03/2000 | EP0998025A1 Low noise I-Q Mixer |
| 05/03/2000 | EP0998024A2 Modulator structure for a transmitter and a mobile station |
| 05/03/2000 | EP0937333B1 Frequency synthesizer circuit for mobile stations |
| 05/03/2000 | CN1252182A Transmit signal generation with aid of receiver |
| 04/27/2000 | WO2000024120A1 Method and system for ensuring reception of a communications signal |
| 04/27/2000 | WO2000024119A1 Applications of universal frequency translation |
| 04/27/2000 | WO2000024118A1 Integrated frequency translation and selectivity with a variety of filter embodiments |
| 04/27/2000 | WO2000024117A1 Method and system for down-converting an electromagnetic signal |
| 04/27/2000 | WO2000024116A1 System and method for frequency up-conversion |
| 04/27/2000 | DE19844970A1 Schaltungsanordnung zum Mischen eines Eingangssignals und eines Oszillatorsignals miteinander Circuit arrangement for mixing an input signal and an oscillator signal with one another |
| 04/25/2000 | US6054889 Mixer with improved linear range |
| 04/20/2000 | WO2000022735A1 Radio receiver |
| 04/20/2000 | WO2000022725A1 Product detector and method therefor |
| 04/19/2000 | EP0813770B1 Radio frequency signal reception using frequency shifting by discrete-time sub-sampling down-conversion |
| 04/18/2000 | US6052419 Frequency adjusting method for use with digital receiver and frequency adjusting circuit thereof |
| 04/13/2000 | WO2000021193A1 If amplifier |
| 04/13/2000 | WO2000001062A3 Frequency offset image rejection |
| 04/12/2000 | EP0993123A2 An A/D conversion apparatus and a radio apparatus |
| 04/12/2000 | CN1250338A Method and apparatus for radio communication |
| 04/11/2000 | US6049706 Integrated frequency translation and selectivity |
| 04/11/2000 | US6049573 Efficient polyphase quadrature digital tuner |
| 04/06/2000 | WO2000019653A1 Method and apparatus providing improved intermodulation distortion protection |
| 04/06/2000 | WO2000019623A1 Using a single side band mixer to reject image signals in a wireless station |
| 04/06/2000 | WO2000019600A1 Radio transmitter |
| 04/06/2000 | WO2000019599A1 Circuit for mixing an input signal and an oscillator signal with each other |
| 04/04/2000 | US6046486 Heterojunction bipoplar mixer circuitry |
| 03/28/2000 | US6043710 Low-voltage amplifiers |
| 03/22/2000 | EP0986856A1 Communications device |
| 03/22/2000 | CN1248099A Local oscillator leak cancel circuit |
| 03/21/2000 | US6041250 Adaptive line noise canceler and detector for ECG signals |
| 03/21/2000 | US6041223 High level diode mixer |
| 03/21/2000 | US6041080 Signal processing system and method for digitally mixing a plurality of analog input signals |
| 03/21/2000 | US6040738 Direct conversion receiver using single reference clock signal |
| 03/21/2000 | US6040731 Differential pair gain control stage |
| 03/15/2000 | EP0984721A1 Ecg noise detection system |
| 03/14/2000 | US6037825 Tree mixer operable in class A, B or AB |
| 03/09/2000 | WO2000013306A1 Direct-conversion tuner integrated circuit for direct broadcast satellite television |
| 03/09/2000 | WO2000011925A2 Circuit for frequency synthesis and modulation and radio-telephone station |
| 03/09/2000 | DE19942810A1 Image reject mixer circuit for radio receivers, uses capacitor connected across the current signal source output to reduce noise |
| 03/08/2000 | CN1246992A Transmitter comprising VCO |
| 03/08/2000 | CN1246989A Communication system, communication device and frequency synthesizer |
| 03/07/2000 | US6035185 Selective RF circuit with varactor tuned bandpass switched bandpass filters |
| 03/07/2000 | US6034573 Method and apparatus for calibrating modulation sensitivity |
| 03/01/2000 | EP0982849A1 Predistorter |
| 03/01/2000 | EP0982848A1 Complementary tuned mixer |
| 03/01/2000 | EP0981864A1 Integrable radio receiver circuit for frequency-modulated digital signals |
| 03/01/2000 | EP0799522B1 Image-reject mixers |
| 02/29/2000 | US6032028 Radio transmitter apparatus and method |
| 02/29/2000 | US6031878 Direct-conversion tuner integrated circuit for direct broadcast satellite television |
| 02/24/2000 | WO1999052214A3 Communications device |
| 02/23/2000 | CN1245597A Method and arrangement for frequency conversion |
| 02/22/2000 | US6029060 Mixer with current mirror load |
| 02/22/2000 | US6029059 Quadrature mixer method and apparatus |
| 02/22/2000 | US6029054 MMIC receiver |
| 02/17/2000 | WO2000008870A2 Apparatus and method of linearizing a power amplifier in a mobile radio communication system |
| 02/17/2000 | WO2000008480A2 Multi-conversion radar detector having increased tuning range and self-calibrating function |
| 02/15/2000 | US6026287 Mixer with cross-connected symmetrical subcircuit couplings |
| 02/15/2000 | US6026286 RF amplifier, RF mixer and RF receiver |
| 02/09/2000 | CN1244315A Improvements in or relating to phase receivers |
| 02/08/2000 | US6023196 Bias circuit for transconductance amplifier |
| 02/03/2000 | WO2000005815A1 Single chip cmos transmitter/receiver and vco-mixer structure |
| 02/02/2000 | EP0977352A2 Noise figure and linearity improvement technique using shunt feedback |
| 02/02/2000 | EP0977351A1 Method and apparatus for radio communication |
| 02/01/2000 | US6021323 Direct conversion receiver with reduced even order distortion |
| 02/01/2000 | US6021164 Digital radio communication system having reduced phase-locked loop, and its synchronization |
| 02/01/2000 | US6020783 RF notch filter having multiple notch and variable notch frequency characteristics |
| 02/01/2000 | CA2162937C Transmitter-receiver |
| 01/26/2000 | EP0975096A2 Signal processing apparatus and communication apparatus |
| 01/26/2000 | CN1242672A NTSC video signal receivers with reduced sensitivity to interference from Co-channel digital television signals |
| 01/25/2000 | US6018553 Multi-level mixer architecture for direct conversion of FSK signals |
| 01/25/2000 | US6018270 Low voltage RF amplifier and mixed with single bias block and method |
| 01/19/2000 | EP0973255A1 90 degree phase shifter and image rejection mixer |
| 01/19/2000 | EP0973254A1 Local oscillator leak reduction circuit |
| 01/19/2000 | EP0972337A1 Structure and method for super fet mixer having logic-gate generated fet square-wave switching signal |
| 01/19/2000 | EP0972336A1 Radio system including fet mixer device and square-wave drive switching circuit and method therefor |
| 01/18/2000 | US6016170 Double conversion television tuner |
| 01/18/2000 | US6016119 Method and apparatus for determining the location of an object which may have an obstructed view of the sky |
| 01/12/2000 | CN1241326A Digital communication device and mixer |
| 01/11/2000 | US6014546 Method and system providing RF distribution for fixed wireless local loop service |
| 01/06/2000 | WO2000001062A2 Frequency offset image rejection |
| 01/05/2000 | EP0968570A1 A multi-carrier radio system and radio transceiver implementation |
| 01/05/2000 | DE19922249A1 Fixed frequency analysis procedure used in sweeping type spectrum analyzer |
| 01/05/2000 | DE19825455A1 Frequenzumsetzungseinrichtung für ein Fernsehsignalgemisch Frequency conversion device for a composite video signal |
| 01/04/2000 | US6011966 Mixer input circuit with Imbalance-balance circuit having distributed constant line |
| 12/29/1999 | WO1999067878A1 Method and apparatus for improving modulation accuracy |
| 12/29/1999 | EP0707757B1 Microwave transmission system |
| 12/28/1999 | US6009317 Method and apparatus for compensating for imbalances between quadrature signals |
| 12/28/1999 | US6009313 Radio Communication device capable of setting a frequency channel with a small frequency step |
| 12/28/1999 | US6009312 Transmit signal generation with the aid of a receiver |
| 12/28/1999 | US6009304 Two-output low-noise down converter circuit |
| 12/23/1999 | WO1999066636A1 Image rejection mixer |
| 12/23/1999 | DE19549472C2 Time-share mixer circuit, esp. for microwave monolithic superheterodyne receiver |
| 12/22/1999 | EP0966115A2 A tranceiver for wireless communication |
| 12/22/1999 | EP0966096A1 Method and apparatus for extending the dynamic range of a frequency mixer |