Patents
Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673)
04/2002
04/03/2002EP1193863A2 Amplifier circuit
04/03/2002EP1193858A2 Tuner
04/03/2002EP1192726A1 Structure of a radio-frequency front end
04/03/2002EP1192723A1 Programmable digital intermediate frequency transceiver
04/03/2002CN1082301C Digital radio transmission-reception apparatus
04/03/2002CN1082277C Circuit for frequency converting and modulating
04/02/2002US6366767 Local oscillation circuit and a receiving circuit including the local oscillation circuit
04/02/2002US6366620 VSAT system
03/2002
03/28/2002WO2002025807A2 Wideband fast-hopping receiver front-end and mixing method
03/28/2002WO2002025804A2 Calibration of a quadrature receiver
03/28/2002WO2002025803A2 Complex valued delta sigma phase locked loop demodulator
03/28/2002US20020037702 Transmitting and receiving apparatus
03/28/2002US20020037060 Digital down-converter and receiver
03/27/2002EP1191697A2 Local Oscillator for the Generation of an HF-Signal to be Directly Mixed by Avalanche-Photodiodes
03/27/2002EP1191682A2 Data transfer system and method
03/27/2002EP1191681A2 Signal source with a polyphase filter
03/26/2002US6363120 Apparatus and method for extending the dynamic range of a mixer using feed forward distortion reduction
03/26/2002US6362777 Pulse-doppler radar apparatus
03/21/2002WO2002023714A1 Resistive mixer
03/21/2002WO2002023713A2 Direct conversion tuner
03/21/2002WO2002023712A1 Reducing the dc offset of a homodyne receiver
03/21/2002WO2001089092A3 Apparatus for radio frequency processing with dual modulus synthesizer
03/21/2002US20020033902 Tuning system and method in broadcast signal receiver
03/20/2002EP1189337A2 Balanced mixer circuit using bipolar transistors
03/20/2002EP1188230A1 Transceiver with dc-offset cancellation in the transmitter
03/19/2002US6360087 Direct conversion receiver
03/14/2002US20020032016 Dual double balanced mixer
03/14/2002US20020032014 Local oscillator for generating an HF signal for direct mixing by using avalanche photodiodes
03/13/2002EP1187351A2 Wireless telecommunications multi-carrier receiver architecture
03/13/2002EP1187310A2 Gilbert-cell Mixer
03/12/2002US6357044 Hybrid Fiber-Coax telecommunication system
03/12/2002US6356747 Intermediary low-frequency frequency-conversion radiofrequency reception
03/12/2002US6356736 Direct-conversion tuner integrated circuit for direct broadcast satellite television
03/12/2002US6356602 RF integrated circuit for downconverting a GPS signal
03/12/2002US6356597 High precision, low phase noise synthesizer with vector modulator
03/12/2002US6356594 Data converter
03/12/2002US6355961 Structure and method for improved signal processing
03/07/2002WO2002019548A2 Improved method and apparatus for up- and down- conversion of radio frequency (rf) signals
03/07/2002WO2002019515A2 Receiver, and method
03/07/2002US20020028667 Frequency synthesizer capable of obtaining signals in three frequency bands
03/07/2002CA2421173A1 Improved method and apparatus for up- and down- conversion of radio frequency (rf) signals
03/06/2002EP1184971A1 Switching mixer
03/06/2002EP1183841A1 Compensation of mismatch in quadrature devices
03/06/2002EP1183777A1 Band-pass filter with carrier frequency reduction
03/06/2002EP1183667A1 Receiver capable of parallel demodulation of messages
03/06/2002CN1080484C Digital radio communication system having reduced phase-locked loop
03/05/2002US6353735 MDG method for output signal generation
03/05/2002CA2273671C Local oscillator leak cancellation circuit
02/2002
02/28/2002WO2002017501A1 A mixer
02/28/2002WO2002017485A1 π/2 PHASE SHIFTER
02/28/2002WO2002017480A1 Linear pre-amplifier for radio-frequency power amplifier
02/28/2002US20020024393 Electronic circuit for and a method of controlling the output frequency of a frequency synthesizer
02/27/2002EP1182792A1 An electronic circuit for and a method of controlling the output frequency of a frequency synthesizer
02/27/2002EP1182775A2 Frequency Converter
02/27/2002EP1182774A2 Multiple conversion tuner
02/27/2002EP1182773A2 Receiver for digital audio
02/27/2002CN1337787A Receiving apparatus and integrated circuit for receiving
02/26/2002US6351677 Method and device in a telecommunication system
02/26/2002US6351632 Mixer with high order intermodulation suppression and robust conversion gain
02/26/2002US6351502 RF front-end with multistage stepdown filtering architecture
02/21/2002WO2002015385A1 Apparatus and method for improved chopping mixer
02/21/2002US20020022466 Printed single balanced downconverter mixer
02/21/2002US20020021769 Receiving device and integrated circuit for reception
02/21/2002DE10037247A1 Mischerschaltungsanordnung Mixer circuitry
02/20/2002CN1337096A Improvements relating to polyphase receivers
02/19/2002US6348830 Subharmonic double-balanced mixer
02/14/2002WO2002013370A2 Frequency translator using a cordic phase rotator
02/14/2002WO2001058103A3 Kaskadenfrequenzumsetzer unter verwendung von phasenverschobenen signalen der lokalen oszillatoren
02/14/2002WO2001047202A3 Phase comparator using undersampling
02/14/2002CA2419063A1 Frequency translator using a cordic phase rotator
02/13/2002CN1336062A Phase interpolation receiver for angle modulated RF signals
02/12/2002US6347221 Orthogonal modulator having a modulation mixer
02/12/2002CA2231825C Printed circuit transformer hybrids for rf mixers
02/06/2002EP1178604A1 Frequency converting system for FM signals
02/06/2002EP1177621A2 Mos variable gain amplifier
02/06/2002CN1079005C Frequency generator of radio communication system
02/06/2002CN1078982C Automatic frequency control circuit for digital radio communication system
02/05/2002US6345178 Linear balanced RF mixer
02/05/2002US6345177 Signal analog processing circuit for satellite positioning receiver
01/2002
01/31/2002WO2001026215A3 Down converter using subsampling
01/31/2002US20020013137 Mixer circuit configuration
01/31/2002US20020012407 Angle demodulation apparatus, local oscillation apparatus, angle demodulation method, local oscillation signal generating method, recording medium and computer data signal
01/31/2002US20020011890 Semiconductor integrated circuit
01/30/2002EP1176713A1 Gilbert-cell mixer with gain control
01/30/2002EP1176708A2 Sub-sampling mixer
01/29/2002US6343211 LO cancelling mixer
01/29/2002US6343209 Tuner for digital and analog use
01/29/2002US6342804 Low-noise mixer
01/24/2002WO2002007305A1 Linear balanced rf mixer
01/24/2002WO2000076059A3 Gilbert cell mixer
01/24/2002US20020008983 Low-noise frequency converter with strong rejection of image frequency
01/23/2002EP1175008A2 Low phase noise frequency converter
01/17/2002WO2002005417A1 Even harmonic mixer
01/17/2002US20020006171 Low phase noise frequency converter
01/15/2002US6339701 Method and apparatus for extending the dynamic range of a frequency mixer
01/10/2002US20020004376 Current-reuse bleeding mixer
01/09/2002CN1330489A TV. tuning component
01/09/2002CN1330457A Radio communication device
01/08/2002US6337976 Selective-calling radio receiver using direct conversion method
01/03/2002US20020000890 Radio communications apparatus
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