Patents
Sitemap › H03 - Basic electronic circuitry › H03D - Demodulation or transference of modulation from one carrier to another › H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing
Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673)
04/2003
04/02/2003EP1297618A2 Apparatus, system, and method for down-converting and up-converting electromagnetic signals
04/02/2003EP0962046B1 System and method for harmonic interference avoidance in carrier recovery for digital demodulation
04/02/2003CN1104781C Multi-band mixer with universal local oscillator
04/02/2003CN1104779C Radio receiving method and radio receiving apparatus
04/01/2003US6542821 GPS receiver and method for processing GPS signals
04/01/2003US6542722 Method and system for frequency up-conversion with variety of transmitter configurations
04/01/2003US6542019 Highly linear and low noise figure mixer
03/2003
03/27/2003WO2003026242A1 A digital implementation of multi-channel demodulators
03/27/2003US20030060160 Subharmonic carrier-canceling baseband/K upconverter system
03/27/2003US20030058976 Direct conversion radio receiving system using digital signal processing for channel filtering and down conversion to base band
03/27/2003US20030058961 Method and system for recovering information from a magnetic field signal usable for locating an underground object
03/26/2003EP1296446A1 Balanced Mixer using bipolar Transistors
03/26/2003EP0906662B1 Low voltage analog front end
03/25/2003US6539066 Integrable radio receiver circuit for frequency-modulated digital signals
03/25/2003US6538501 Radio frequency amplifier and tuner
03/25/2003CA2192038C Demodulator circuit for a signal with frequency modulated about an intermediate frequency
03/20/2003WO2003023985A1 Improvements in or relating to superheterodyne receivers
03/20/2003WO2003023983A1 Method and apparatus for direct digital to rf conversion using pulse shaping
03/20/2003WO2003023948A2 Transmitter arrangement especially for mobile radio
03/20/2003WO2002075991A3 Even-order non-linearity correction feedback for gilbert style mixers
03/20/2003US20030056221 Digital implementation of multi-channel demodulators
03/20/2003US20030054786 Apparatus and method for compensating for the offset of a mixer
03/20/2003US20030053558 Digital down converter
03/20/2003US20030053551 Method and apparatus for performing Nyquist folding frequency modulation
03/20/2003US20030052727 High linearity, high gain mixer circuit
03/19/2003EP1294089A2 Remodulation of an RF carrier modulated signal
03/19/2003EP1142121B1 Circuit for the frequency multiplication of an angle modulated signal using a pll and method
03/19/2003CN1404216A Frequency transformer
03/18/2003US6535748 Wireless communication transceiver having a dual mode of operation
03/18/2003US6535725 Interference reduction for direct conversion receivers
03/13/2003WO2003021826A1 Method for measuring and compensating gain and phase imbalances in quadrature modulators
03/13/2003WO2003021804A1 New rfic transceiver architecture and method for its use
03/13/2003WO2001089078A8 Apparatus, system, and method for down-converting and up-converting electromagnetic signals
03/13/2003WO2001065680A3 Architecture for intermediate frequency decoder
03/13/2003US20030050035 Superheterodyne receivers
03/12/2003EP1292018A2 Balanced FET Mixer
03/12/2003EP1290889A1 System and method of voice recognition near a wireline node of a network supporting cable television and/or video delivery
03/11/2003US6531920 Differential amplifier circuit
03/06/2003WO2003019800A2 Method and apparatus for conversion of radio frequency (rf) signals using aperiodic mixing signals
03/06/2003WO2003019786A2 Digital down converter
03/06/2003WO2001095479A3 Dual band fet mixer
03/06/2003US20030045263 Integrated direct conversion satellite tuner
03/06/2003US20030045261 Frequency translating devices and frequency translating measurement systems with DC bias added to a mixer diode
03/06/2003US20030045256 Stacked modulator and automatic gain control amplifier
03/06/2003US20030042945 Frequency converter
03/06/2003CA2457338A1 Digital down converter
03/06/2003CA2456930A1 Method and apparatus for conversion of radio frequency (rf) signals using aperiodic mixing signals
03/05/2003EP1289125A2 Double balance mixer circuit and orthogonal demodulation circuit using the same
03/05/2003EP1289124A2 Stacked modulator and automatic gain control amplifier
03/05/2003EP1289123A1 Frequency Converter for GPS Receiver
03/05/2003EP1289122A1 Balanced quadrature modulator with double frequency conversion
03/04/2003US6529721 Low-noise mixer and method
03/04/2003US6529719 Image reject mixer
03/04/2003US6529047 Mixer driver circuit
02/2003
02/27/2003WO2003017507A2 Transmitter apparatus and methods using frequency doubling modulation
02/27/2003WO2003017465A1 Mixer circuit with image frequency rejection which is intended, in particular, for an rf receiver with zero or low intermediate frequency
02/27/2003WO2003016928A1 Method and device for determining sideband ratio of superconduction mixer using comb generator
02/27/2003WO2002067413A3 Transmitter and receiver circuit for radio frequency
02/27/2003WO2002025804A3 Calibration of a quadrature receiver
02/27/2003US20030040294 Efficient charge transfer using a switched capacitor resistor
02/27/2003US20030040289 Method for the generation of modulation by frequency division followed by frequency multiplication, and radiofrequency apparatus
02/27/2003US20030038681 System and method of digital tuning a voltage controlled oscillator
02/26/2003EP1285494A2 Low noise, low distortion, gilbert cell mixer with gain control , and method
02/25/2003WO2002005256A1 Image processing device for transmitting color with fidelity and image data providing method
02/25/2003US6525609 Large gain range, high linearity, low noise MOS VGA
02/20/2003WO2003015259A2 Radio-frequency signal frequency conversion device for a low power rf receiver
02/20/2003US20030036373 RF mixer using half local oscillation frequency
02/20/2003US20030036371 Method of effectuating frequency switching by using two self-oscillating frequency reducers having a common input
02/20/2003US20030035499 Direct radio frequency (RF) sampling with recursive filtering method
02/20/2003CA2456540A1 Radio-frequency signal frequency conversion device for a low power rf receiver
02/19/2003CN1101994C Double-frequency-band receiver
02/18/2003US6522213 SSB transmitter
02/18/2003US6522177 Frequency synthesis device
02/13/2003WO2003012985A2 Method and apparatus for analog multipliers employed in analog filtering system
02/13/2003WO2003012478A2 System for recovering information from a magnetic field signal usable for locating an underground object and method
02/13/2003WO2002095962A3 Quadrature envelope-sampling of intermediate frequency signal in receiver
02/13/2003US20030032398 Intermediate frequency planning in radio transmitters and receivers
02/13/2003US20030030497 Integrated VCO having an improved tuning range over process and temperature variations
02/12/2003CN1397106A High-frequency amplifier and high-frequency mixer
02/12/2003CN1396787A Oscillator and frequency synthesizer and communication equipment using the oscillator
02/12/2003CN1396777A Oscillator and frequency synthesizer and communication equipment using the oscillator
02/11/2003US6519305 Frequency converter arrangement
02/06/2003US20030027541 System and method for radio signal reconstruction using signal processor
02/06/2003US20030027531 Wireless communications system having variable gain mixer
02/06/2003US20030025841 Television tuner
02/05/2003EP0885510A4 Method and apparatus for routing a digitized rf signal to a plurality of paths
02/05/2003CN1395438A Amplifier with distortion compensator and radio communication base station
02/04/2003US6516187 DC offset correction for direct conversion tuner IC
02/04/2003US6516183 Method and apparatus for disturbance compensation of a direct conversion receiver in a full duplex transceiver
02/04/2003US6516038 Receiving circuit
01/2003
01/30/2003WO2003009483A1 A multi standard transceiver architecture for wlan
01/30/2003WO2003009465A1 Mixer circuit
01/30/2003WO2003009464A2 Linearised mixer using frequency retranslation
01/30/2003WO2001089079A3 Frequency converter for mulziple-channel systems
01/30/2003WO2001089078A3 Apparatus, system, and method for down-converting and up-converting electromagnetic signals
01/30/2003US20030022646 Integrated switchless programmable attenuator and low noise amplifier
01/30/2003US20030022640 Method and system for frequency up-conversion
01/30/2003US20030020544 Large gain range, high linearity, low noise MOS VGA
01/29/2003EP1280269A1 Television tuner
01/28/2003CA2163883C Method and apparatus for automatic gain control and dc offset cancellation in quadrature receiver
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