| Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673) |
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| 02/12/2004 | US20040027188 Mixer which assures satisfactory performance even at low supply voltage |
| 02/12/2004 | US20040027187 Mixer circuit |
| 02/11/2004 | EP1388933A2 Direct conversion circuit capable of eliminating distirsion of base band signals |
| 02/10/2004 | US6690735 Broad band digital radio receiver for multicarrier signal |
| 02/10/2004 | US6690722 Method for characterizing frequency translation devices |
| 02/05/2004 | US20040022025 Equipment for communication system and semiconductor integrated circuit device |
| 02/04/2004 | EP1386409A1 Method and apparatus in a microwave system |
| 02/04/2004 | EP1183841B1 Compensation of mismatch in quadrature devices |
| 02/04/2004 | EP1032972B1 Simplified reference frequency distribution in a mobile phone |
| 02/04/2004 | CN1473430A Mixed-media telecommunication call set-up |
| 02/03/2004 | US6687494 Low power radio telephone image reject mixer |
| 02/03/2004 | US6687493 Method and circuit for down-converting a signal using a complementary FET structure for improved dynamic range |
| 02/03/2004 | CA2300305C Totem pole mixer having grounded serially connected stacked fet pair |
| 01/29/2004 | WO2004010574A1 Vhf adapter for cable network |
| 01/29/2004 | WO2003036322A3 Method for open loop tracking gps signals |
| 01/29/2004 | US20040017862 Offset correction for down-conversion mixers |
| 01/28/2004 | EP1384314A2 Frequency conversion by undersampling |
| 01/28/2004 | CN1471757A 集成调谐器电路 Integrated tuner circuit |
| 01/27/2004 | US6683918 High precision, low phase noise synthesizer with vector modulator |
| 01/22/2004 | WO2004008650A1 Direct conversion receiver using vertical bipolar junction transistor available in deep n-well cmos technology |
| 01/22/2004 | US20040014435 Multi-band RF receiving method and apparatus in moblile communication system |
| 01/22/2004 | DE10228757A1 Empfängeranordnung, insbesondere für den Mobilfunk Receiver arrangement, in particular for mobile radio |
| 01/21/2004 | EP1382142A2 Even-order non-linearity correction feedback for gilbert style mixers |
| 01/21/2004 | EP1382130A1 Apparatus in a microwave system |
| 01/21/2004 | CN1470100A Method and circuit to generate sinusoids for modulators and frequency converters |
| 01/21/2004 | CN1135687C Radio-frequency transceiver and method for receiving & transmitting radio-frequency signal |
| 01/20/2004 | CA2330964C Image rejection mixer |
| 01/15/2004 | WO2004006433A1 Tuning arrangement |
| 01/14/2004 | EP1381163A1 Multiband RF receiver using wideband RF filters |
| 01/14/2004 | EP1380163A1 Combination tuner for earth and satellite broadcasting |
| 01/14/2004 | EP1380071A1 Power-mixer architecture for transmitters |
| 01/14/2004 | EP1090456B1 Image rejection mixer |
| 01/14/2004 | CN1468470A Frequency translator using a cordic phase rotator |
| 01/14/2004 | CN1134899C High frequency apparatus |
| 01/13/2004 | US6678503 Apparatus for radio frequency processing with dual modulus synthesizer |
| 01/13/2004 | US6678340 Apparatus for receiving and processing a radio frequency signal |
| 01/08/2004 | WO2004004266A2 Receiver device, especially for mobile radio |
| 01/08/2004 | US20040005869 Wireless communications transceiver: transmitter using a harmonic rejection mixer and an RF output offset phase-locked loop in a two-step up-conversion architecture & receiver using direct conversion architecture |
| 01/08/2004 | US20040004674 Dual mode tuner for co-existing digital and analog television signals |
| 01/07/2004 | EP1378056A1 Amplifier-mixer device |
| 01/06/2004 | US6675005 Printed single balanced downconverter mixer |
| 01/02/2004 | EP1374427A1 Frequency plan |
| 01/02/2004 | EP1374421A1 Interference reduction for direct conversion receivers |
| 01/02/2004 | EP1374386A2 Gilbert cell multiplier in a quadrature modulator |
| 01/01/2004 | US20040002321 Method and apparatus for reducing re-radiation using techniques of universal frequency translation technology |
| 01/01/2004 | US20040002320 Square wave local oscillator technique for direct conversion receiver |
| 01/01/2004 | US20040002319 Harmonic boost technique for direct conversion receiver |
| 01/01/2004 | US20040002317 Filter switching system and method |
| 01/01/2004 | US20040002315 Harmonic boost signals in up/down direct/super heterodyne conversions for advanced receiver/transmitter architecture |
| 12/31/2003 | CN1133281C Transceiver |
| 12/30/2003 | US6671505 Frequency converter |
| 12/30/2003 | US6671500 Frequency plan |
| 12/25/2003 | US20030236083 Linearity improvement of Gilbert mixers |
| 12/24/2003 | WO2003012985A3 Method and apparatus for analog multipliers employed in analog filtering system |
| 12/24/2003 | CN1463501A Quadrature envelope-sampling of intermediate frequency signal in receiver |
| 12/24/2003 | CN1463478A Power-mixer architecture for tranmitters |
| 12/23/2003 | US6668025 Tuning demodulator for digitally modulated RF signals |
| 12/23/2003 | US6668024 Radiofrequency transmitter with a high degree of integration and possibly with self-calibrating image deletion |
| 12/23/2003 | US6667649 Method and system for utilizing a high-performance mixer as a complete receiver |
| 12/18/2003 | WO2003079537A3 Frequency converting circuit arrangement and mobile radio set comprising said circuit arrangement |
| 12/18/2003 | WO2003001692A3 Low leakage local oscillator system |
| 12/17/2003 | EP1110303B1 System and method for frequency up-conversion |
| 12/16/2003 | US6665528 Dual band fet mixer |
| 12/16/2003 | US6665527 Double balanced mixer circuit |
| 12/16/2003 | US6664609 Stray capacity between the first emitter wiring and the second emitter wiring can be reduced |
| 12/16/2003 | CA2227673C Transceiver bandwidth extension using double mixing |
| 12/11/2003 | WO2003103131A2 Image rejection quadratic filter |
| 12/11/2003 | US20030228858 Tunable low noise amplifier and current-reused mixer for a low power RF application |
| 12/10/2003 | EP1368901A1 Dc offset correction scheme for wireless receivers |
| 12/10/2003 | EP0909481B1 Receiver and filter arrangement comprising polyphase filters |
| 12/10/2003 | CN1461113A Wave mixing device |
| 12/10/2003 | CN1130819C Apparatus and method of linearizing power amplifier mobile radio communication system |
| 12/09/2003 | US6662002 Frequency conversion circuit and transmitter |
| 12/09/2003 | US6662001 Multi-heterodyne stage for a receiver or spectrum analyzer |
| 12/09/2003 | US6661372 Client-server based remote locator device |
| 12/04/2003 | WO2003100963A1 Frequency offset generator for synthesised signals |
| 12/04/2003 | WO2003100962A2 Analogue mixer |
| 12/04/2003 | US20030224748 Double-conversion television tuner using a delta-sigma fractional-N PLL |
| 12/04/2003 | US20030222702 Quadrature switching mixer with reduced leakage |
| 12/03/2003 | EP1367735A1 Direct conversion receiver |
| 12/03/2003 | EP1367709A2 Double-conversion television tuner using a delta-sigma fractional-N PLL |
| 12/02/2003 | US6658237 Multi-Band transceiver utilizing direct conversion receiver |
| 12/02/2003 | US6658070 Direct conversion receiver and method of compensating interference signals generated during processing |
| 12/02/2003 | US6657494 Variable gain mixer-amplifier with fixed DC operating voltage level |
| 11/27/2003 | WO2003098821A1 Up/down conversion circuitry for radio transceiver |
| 11/27/2003 | WO2003098794A1 Step-up frequency converter |
| 11/27/2003 | WO2002089312A3 Frequency conversion by undersampling |
| 11/27/2003 | US20030220086 Oscillator frequency offsets |
| 11/27/2003 | US20030219067 Up / down conversion circuitry for radio transceiver |
| 11/27/2003 | US20030218697 Broadband television tuner front end |
| 11/26/2003 | EP1364468A2 Calibration of in-phase and quadrature transmit branches of a transmitter |
| 11/26/2003 | CN1459143A Complex valued delta sigma phase locked loop demodulator |
| 11/25/2003 | US6654604 Equipment for communication system |
| 11/25/2003 | US6654595 Radio system including mixer device and switching circuit and method having switching signal feedback control for enhanced dynamic range and performance |
| 11/25/2003 | US6653885 On-chip integrated mixer with balun circuit and method of making the same |
| 11/20/2003 | WO2003096524A2 Mirror suppression circuit in a quadrature demodulator |
| 11/20/2003 | WO2003071673A3 Frequency down converter using a multitone local oscillator |
| 11/20/2003 | WO2003019786A3 Digital down converter |
| 11/20/2003 | US20030216131 Active double-balanced mixer |
| 11/20/2003 | US20030216128 RF passive mixer with DC offset tracking and local oscillator DC bias level-shifting nerwork for reducing even-order distortion |