| Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673) |
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| 10/24/2007 | CN101060309A Signal processing circuit and signal processing method |
| 10/24/2007 | CN101060307A A digital variable-frequency system and its signal processing method |
| 10/23/2007 | US7286811 Local oscillator apparatus and method |
| 10/18/2007 | WO2007116974A1 Filter device |
| 10/18/2007 | US20070243848 RF transceiver with compact stacker mixer design for multiple frequency conversion |
| 10/18/2007 | US20070243847 Passive Subharmonic Mixer |
| 10/18/2007 | US20070242158 Apparatus and Method for Processing Signals in a Multi-Channel Receiver |
| 10/17/2007 | EP1844547A1 A high dynamic range low-power differential input stage |
| 10/17/2007 | EP1844543A1 Low-noise mixer |
| 10/17/2007 | EP0885492B1 An improved gps receiver utilizing a communication link |
| 10/17/2007 | CN101056112A 双变换接收机 Double conversion receiver |
| 10/16/2007 | US7283139 Image processing device for transmitting color with fidelity and product selling method using the same |
| 10/16/2007 | US7282982 Mixer-system with gain-blocks and switches |
| 10/10/2007 | EP1842285A2 Transformer circuit |
| 10/10/2007 | CN101053149A Zero IF down converter with even order harmonic suppression |
| 10/09/2007 | US7280815 Process for control of standby currents in a direct conversion type of frequency transposition device, and corresponding device |
| 10/04/2007 | US20070230558 Mixer Arrangement |
| 10/04/2007 | US20070229716 Methods and apparatus for implementing a receiver on a monolithic integrated circuit |
| 10/03/2007 | EP1839396A2 Low intermediate frequency receiver and the sampling method thereof |
| 10/03/2007 | CN101048943A Methods and apparatuses for intrasystem and intersystem sliding intermediate frequency transception |
| 10/03/2007 | CN100341336C VTR signal processing circuit |
| 10/03/2007 | CN100341251C Low leakage local oscillator system |
| 10/02/2007 | US7277682 RF passive mixer with DC offset tracking and local oscillator DC bias level-shifting network for reducing even-order distortion |
| 09/27/2007 | WO2007108163A1 Frequency converting circuit |
| 09/27/2007 | US20070224954 Cellular phone with integrated FM radio and remote low noise amplifier |
| 09/27/2007 | US20070224950 Method and system for frequency up-conversion |
| 09/26/2007 | EP1837988A1 Joint DRM AM simulcast encoder and transmitter equalizer |
| 09/26/2007 | CN101043210A Radio frequency tuner |
| 09/26/2007 | CN101042416A 光电外差探测电路 Optical heterodyne detection circuit |
| 09/26/2007 | CN100340068C Multiple-input multiple-output radio transceiver |
| 09/25/2007 | US7274410 Broadband integrated tuner |
| 09/19/2007 | EP1834412A1 Low intermediate frequency (if) radio receiver circuits |
| 09/18/2007 | US7272370 Mixers with a plurality of local oscillators and systems based thereon |
| 09/18/2007 | US7272365 Frequency offset correction in transmitters having non-ideal synthesizer channel spacing |
| 09/18/2007 | US7272164 Reducing DC offsets using spectral spreading |
| 09/18/2007 | US7271667 Apparatus and method for phase lock loop gain control using unit current sources |
| 09/18/2007 | US7271640 Mixer circuit with bypass and mixing modes having constant even order generation and method of operation |
| 09/13/2007 | WO2007102100A1 Signal processor comprising a frequency converter |
| 09/13/2007 | US20070211788 Method For Temporal Inversion Of A Wave |
| 09/13/2007 | US20070210954 Microwave frequency converter |
| 09/12/2007 | EP1832072A2 Receiver with chopper stabilization and method thereof |
| 09/12/2007 | EP1831989A1 Mixing circuit, capturing circuit, emitting circuit and method for operating a mixing circuit |
| 09/11/2007 | US7269399 Receiver of double conversion system with antenna tuning with variable capacitance using digital-to-analog converter having temperature coefficient setting section |
| 09/07/2007 | WO2007100114A1 Transmitter and carrier leak detection method |
| 09/05/2007 | EP1829228A1 A hybrid receiver architecture using upconversion followed by direct downconversion |
| 09/05/2007 | EP1829204A2 Carbon nanotube devices and method of fabricating the same |
| 09/05/2007 | EP1192726B1 Structure of a radio-frequency front end |
| 09/05/2007 | CN101030758A 混频器 Mixer |
| 09/05/2007 | CN101030757A Mixing circuit for balanced mixer with varactor |
| 09/04/2007 | US7266357 Reduced local oscillator feedthrough quadrature image reject mixer |
| 08/30/2007 | US20070202815 Up/down conversion circuitry for radio transceiver |
| 08/29/2007 | CN101026424A FM transmitter and small electronic device using the same |
| 08/28/2007 | US7263344 Method for reducing IM2 noise in a down conversion circuit |
| 08/28/2007 | US7263343 Frequency converter and radio communication device using same |
| 08/28/2007 | US7262815 Harmonic mixer based television tuner and method of processing a received RF signal |
| 08/22/2007 | EP1821349A1 Electromagnetic wave detection element and electromagnetic wave detection device using the same |
| 08/22/2007 | EP1820277A1 Harmonic reject receiver architecture and mixer |
| 08/22/2007 | EP1820266A1 Low-voltage mixer circuit |
| 08/22/2007 | EP1380071A4 Power-mixer architecture for transmitters |
| 08/22/2007 | EP1249075A4 An rf front-end with a multistage stepdown filtering architecture |
| 08/22/2007 | CN101022265A Frequency modulator and fm sending circuit using same |
| 08/21/2007 | US7260375 Frequency agile RF circuit |
| 08/16/2007 | WO2007090369A1 Transmitting/receiving apparatus for simultaneous transmission and reception, and use of the transmitting/receiving apparatus |
| 08/16/2007 | DE102006059502A1 Rauscharmer Mischer A low noise mixer |
| 08/09/2007 | WO2006073742A3 Carbon nanotube devices and method of fabricating the same |
| 08/09/2007 | US20070182866 Highly integrated television tuner on a single microcircuit |
| 08/09/2007 | DE102006004951A1 Integrierte Schaltungsanordnung zum Überführen eines hochfrequenten Bandpaßsignals in ein niederfrequentes Quadratursignal An integrated circuit device for converting a high-frequency bandpass signal into a low-frequency quadrature signal |
| 08/08/2007 | EP1816740A1 Circuit arrangement for converting a high frequency signal with a frequency band into a low frequency quadrature signal |
| 08/08/2007 | EP1815589A1 Mixer for mixing a signal and method for mixing a signal |
| 08/08/2007 | EP1057253B1 Down/up-conversion apparatus and method |
| 08/08/2007 | CN1331310C High power millimeter wave upper frequency converter power amplification assembly based on three branch combining network |
| 08/08/2007 | CN101013897A Variable signal delaying circuit, quadrature frequency converter and radio frequency tuner |
| 08/02/2007 | US20070178872 Image rejection curcuit |
| 08/01/2007 | EP1813014A2 System and method for developing ultra-sensitive microwave and mllimeter wave phase discriminators |
| 08/01/2007 | EP1483827B1 Circuit arrangement for frequency conversion and mobile radio device with the circuit arrangement |
| 08/01/2007 | CN101010872A Radio receiver front-end and a method for suppressing out-of-band interference |
| 07/26/2007 | WO2007058958A3 Configurable homodyne/heterodyne radio receiver and rfid reader employing same |
| 07/25/2007 | EP1811650A1 Method for finely tuning the frequency of a radio signal |
| 07/25/2007 | EP1811649A2 Method for attenuating spurious signals and receiver |
| 07/25/2007 | CN101005587A Method for providing information on digital TV receiver |
| 07/24/2007 | US7248850 Passive subharmonic mixer design |
| 07/19/2007 | WO2007054253A3 Signal conditioning circuit with a shared oscillator |
| 07/19/2007 | WO2007034420A3 Zero or low if receiver |
| 07/19/2007 | US20070165748 Low if radio receiver |
| 07/19/2007 | US20070165143 Methods and apparatus for implementing a receiver on a monolithic integrated circuit |
| 07/19/2007 | US20070164828 Communication semiconductor integrated circuit device and a wireless communication system |
| 07/17/2007 | US7245889 Signal source with multiphase filter |
| 07/17/2007 | US7245886 Method and system for frequency up-conversion with modulation embodiments |
| 07/17/2007 | US7245164 Radio frequency doubler |
| 07/12/2007 | US20070161363 Single sideband mixer and method of extracting single sideband signal |
| 07/12/2007 | US20070161360 Communication semiconductor integrated circuit device and a wireless communication system |
| 07/10/2007 | US7242730 Mirror suppression circuit and receiver using such circuit |
| 07/10/2007 | US7242236 Mixer circuit with phase-shifted radio frequency signal |
| 07/05/2007 | WO2007074413A1 A wideband communications receiver and a method for receiving data frames from a wireless device in a wireless local area network |
| 07/04/2007 | EP1803217A1 Multiband digital audio broadcast receiver |
| 07/04/2007 | EP1420256B1 Method and device for determining sideband ratio of superconduction mixer using comb generator |
| 07/04/2007 | CN1992536A Method for solving DC-offset of zero intermediate frequency receiver and circuit thereof |
| 07/03/2007 | US7239357 Digital IF demodulator with carrier recovery |
| 07/03/2007 | US7239212 Apparatus and method for phase lock loop gain control |
| 06/28/2007 | WO2007073259A1 Mixer circuit and rf transmitter using such mixer circuit |