| Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673) |
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| 03/04/2008 | US7340233 Integrated circuit and methods for third sub harmonic up conversion and down conversion of signals |
| 03/04/2008 | US7340011 Method of frequency multiplication in a radiocommunications apparatus |
| 02/28/2008 | WO2008008759A3 Systems, methods, and apparatus for frequency conversion |
| 02/28/2008 | US20080051051 Local oscillator apparatus and method |
| 02/27/2008 | EP1040587B1 Receiver with sigma-delta analog-to-digital converter |
| 02/27/2008 | CN100372229C Integrated circuit for high frequency device |
| 02/27/2008 | CN100371730C Synthetic GPS positioning system and communication system utilizing shared circuit |
| 02/21/2008 | WO2008019739A2 Compensation circuit for a mixer stage |
| 02/21/2008 | US20080045167 Radio broadcast reciever, automatic tuning device for radio broadcast and method for receiving radio broadcast |
| 02/20/2008 | EP1066678B1 Digital signal processing architecture for multi-band radio receiver |
| 02/19/2008 | US7333791 Use of an image reject mixer in a forward data channel tuner |
| 02/19/2008 | US7332933 Circuit for compensating for the declination of balanced impedance elements and a frequency mixer |
| 02/14/2008 | WO2008018034A2 Dual gilbert cell mixer with offset cancellation |
| 02/14/2008 | WO2008018033A2 Signal processor comprising a frequency converter |
| 02/14/2008 | WO2007018888A3 Television receiver suitable for multi-standard operation and method therefor |
| 02/14/2008 | US20080036037 System and method for ESD protection |
| 02/14/2008 | DE19713099B4 Verstärkerschaltung für einen Sender Amplifier circuit for a transmitter |
| 02/13/2008 | EP1887685A2 Apparatus and method of generating a plurality of synchronized radio frequency signals |
| 02/13/2008 | CN101123417A Frequency conversion circuit |
| 02/13/2008 | CN100369377C Low-converter mixer with low noise high linear |
| 02/07/2008 | US20080032657 Mixer-system with gain-blocks and switches |
| 02/07/2008 | US20080032646 Circuits |
| 02/06/2008 | CN101119356A Multichannel digital upconversion system and digital upconversion method |
| 02/05/2008 | US7327993 Low leakage local oscillator system |
| 02/05/2008 | US7327783 Frequency translator using a cordic phase rotator |
| 02/05/2008 | US7327406 Methods and apparatus for implementing a receiver on a monolithic integrated circuit |
| 02/05/2008 | CA2347162C System and method for frequency up-conversion |
| 01/31/2008 | WO2008013041A1 Mixing device and high-frequency receiver using the same |
| 01/31/2008 | DE102007033257A1 Mixer circuit for use in radio transmitter, has detection and control unit displaying leakage of upward conversion mixer and producing leakage correction signal in accordance with disturbing signal |
| 01/29/2008 | US7324799 Multiband mixer |
| 01/29/2008 | US7324798 2N-order sub-harmonic frequency modulator having high carrier suppression ratio and direct conversion transmitter using the same |
| 01/24/2008 | WO2008011321A2 Systems, methods, and apparatus for frequency conversion |
| 01/24/2008 | WO2008009633A2 Method for radio calibration |
| 01/24/2008 | WO2008009422A2 Digital transceiver |
| 01/23/2008 | CN101110568A Sub-harmonic mixer and down converter with the same |
| 01/22/2008 | US7321754 Radio-frequency signal frequency conversion device for a low power RF receiver |
| 01/22/2008 | US7321751 Method and apparatus for improving dynamic range in a communication system |
| 01/17/2008 | WO2008008759A2 Systems, methods, and apparatus for frequency conversion |
| 01/17/2008 | WO2008007328A1 Rf signal sampling apparatus and method |
| 01/17/2008 | US20080014894 Method And System For Spurious Signal Control In Receivers |
| 01/16/2008 | CN100362747C Circuit for restraining LO leakage |
| 01/15/2008 | US7319851 Mixer circuit, receiver comprising a mixer circuit, wireless communication comprising a receiver, method for generating an output signal by mixing an input signal with an oscillator signal |
| 01/15/2008 | US7319497 Printed circuit board configurable television tuner |
| 01/10/2008 | US20080007334 Tuneable Circuit for Canceling Third Order Modulation |
| 01/09/2008 | EP1876703A2 Modulator with low sensitivity to amplitude and phase errors of the carrier signal |
| 01/09/2008 | EP1875600A1 Mixer circuit |
| 01/09/2008 | CN101103523A Method and circuit arrangement for prevention of interference in an intermediate frequency signal and am receiver comprising such a method or circuit arrangement |
| 01/09/2008 | CN101102092A Spectrum spreading circuit |
| 01/08/2008 | US7317275 Harmonic propulsion and harmonic controller |
| 01/03/2008 | WO2008001256A2 Mixer circuit and method to operate this mixer circuit |
| 01/03/2008 | WO2008000908A1 Multi-function passive frequency mixer |
| 01/03/2008 | WO2008000906A1 Multi-function passive frequency mixer |
| 01/03/2008 | DE102006029486A1 Signalaufbereiter und Verfahren zum Verarbeiten eines Empfangssignals The signal processor and method for processing a received signal |
| 01/03/2008 | DE102006029482A1 Empfänger und Verfahren zum Empfangen eines ersten Nutzfrequenzbandes und eines zweiten Nutzfrequenzbandes Receiver and method for receiving a first usable frequency band and a second usable frequency band |
| 01/02/2008 | EP1873905A1 Amplifier-Mixer and front end circuit using such a Amplifier-Mixer |
| 01/02/2008 | CN100359894C Receiving apparatus and integrated circuit for receiving |
| 01/02/2008 | CN100359812C Direct conversion receiver using vertical bipolar junction transistor available in deep n-well CMOS technology |
| 01/02/2008 | CN100359800C High frequency device |
| 01/01/2008 | US7315732 Method for frequency conversion and receiver |
| 01/01/2008 | US7315333 TV tuners and methods thereof |
| 01/01/2008 | US7315192 CMOS-based receiver for communications applications |
| 12/27/2007 | WO2007148693A1 Discrete filter, sampling mixer, and radio device |
| 12/26/2007 | CN101093254A GPS receiver and method for processing GPS signals |
| 12/20/2007 | US20070293182 Apparatus, system, and method for down converting and up converting electromagnetic signals |
| 12/19/2007 | EP1330905B1 Modulator with low sensitivity to amplitude and phase errors of the carrier signal |
| 12/19/2007 | CN101091306A Transformer circuit |
| 12/13/2007 | WO2007142341A1 Discrete filter, sampling mixer, and radio device |
| 12/13/2007 | US20070287401 Frequency offset correction in receivers having non-ideal synthesizer channel spacing |
| 12/12/2007 | CN100355203C High-frequency amplifier and high-frequency mixer |
| 12/11/2007 | US7308244 Low voltage mixer |
| 12/11/2007 | US7308243 Mixer arrangement and method for mixing signals |
| 12/11/2007 | US7308242 Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same |
| 12/11/2007 | US7308240 Numerical control oscillator, digital frequency converter and radio frequency unit |
| 12/06/2007 | DE102006024458A1 Integrated circuit for use as motor vehicle-radar circuit, has circuit sections with respective couplers that are connected with input terminal, and mixers connected with respective couplers, where couplers and mixers are integrated on chip |
| 12/06/2007 | DE102006024457A1 Integrierte Schaltung zum Senden und/oder Empfangen von Signalen An integrated circuit for transmitting and / or receiving signals |
| 12/05/2007 | CN101083450A Substrate bias frequency mixer |
| 12/04/2007 | US7304548 Differential voltage controlled oscillator using complementary transistors cross-coupled in series, and transceiver using the same |
| 11/29/2007 | DE102006024460A1 Motor vehicle radar system`s circuit structure, has coupling/decoupling device for coupling test resonator structure with circuit section having negative resistance during testing and for decoupling structure from section after testing |
| 11/28/2007 | CN101079593A Tri-state chopper for frequency conversion |
| 11/28/2007 | CN101079592A A CMOS lower frequency mixed restraining noise of local vibration switch pipe |
| 11/27/2007 | US7302248 Harmonic image-reject converter |
| 11/22/2007 | US20070268076 Apparatus and method for phase lock gain control using unit current sources |
| 11/21/2007 | EP1856798A1 Measurement circuit and method for measuring the level of an rf signal, and a transmitter including a measurement circuit |
| 11/21/2007 | CN200980062Y A receiving and frequency converter for the spread spectrum and precise code signals of a high rail satellite |
| 11/14/2007 | EP1855378A1 Quadrature sub-harmonic frequency up-converter and down-converter |
| 11/14/2007 | CN200976567Y Multiplier based single terminal local oscillation inputted MOS frequency mixer |
| 11/14/2007 | CN200976566Y High-track satellite spread spectrum coarse code signal receiving frequency converter |
| 11/08/2007 | US20070259627 Method and system for frequency up-conversion with modulation embodiments |
| 11/07/2007 | CN100347965C Transceiver using a harmonic rejection mixer |
| 11/06/2007 | US7292837 Mixer and converter using same |
| 11/06/2007 | US7292835 Wireless and wired cable modem applications of universal frequency translation technology |
| 11/01/2007 | WO2007123072A1 Modulator |
| 11/01/2007 | WO2006112719A3 Current mode multiplier based on square root voltage-current relationship of mos transtistor |
| 10/31/2007 | EP1673872A4 Method and apparatus for accurately detecting validity of a received signal |
| 10/31/2007 | CN101065895A Low voltage mixer circuit |
| 10/25/2007 | WO2007118762A1 Balanced series mixer for high frequency signals |
| 10/25/2007 | US20070247238 Apparatus and method for phase lock loop gain control |
| 10/25/2007 | DE102007016080A1 Drahtlose Kommunikationsvorrichtung mit eingebautem Testsignal und darauf bezogenes Testverfahren Wireless communication device with built-in test signal and test methods related thereto |
| 10/24/2007 | CN101061643A Image reject filtering in a direct sampling mixer |
| 10/24/2007 | CN101061640A Direct conversation receiver radio frequency integrated circuit |