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)
01/2003
01/23/2003WO2003007471A2 Mixer
01/23/2003WO2003007470A2 Harmonic mixer
01/23/2003US20030017816 Mixer circuit arrangement and an image-reject mixer circuit arrangement
01/22/2003EP1278301A2 Direct conversion receiver employing subharmonic frequency translator architecture and related preprocessor
01/22/2003EP1277272A2 Frequency converter
01/21/2003US6510314 Mixer circuit with output stage for implementation on integrated circuit
01/16/2003WO2002045283A3 Integrated direct conversion satellite tuner
01/16/2003US20030013426 Apparatus for canceling leakage signal using even harmonic mixer and method thereof
01/16/2003US20030012305 Adjusting a receiver
01/09/2003WO2003003561A1 Frequency mixing circuit
01/09/2003US20030007377 Frequency converter and radio communication apparatus with the same
01/08/2003CN1390393A Apparatus for interference compensation of a direct conversion transceiver and method
01/07/2003US6504420 Temperature compensation for internal inductor resistance
01/03/2003WO2003001692A2 Low leakage local oscillator system
01/02/2003US20030001677 High-frequency amplifier and high-frequency mixer
01/02/2003EP1271792A1 Low leakage local oscillator system
12/2002
12/31/2002US6501513 Television signal receiving tuner
12/31/2002CA2098372C Receiver adaptively operable for multiple signal transmission systems
12/27/2002WO2002019548A3 Improved method and apparatus for up- and down- conversion of radio frequency (rf) signals
12/26/2002US20020197974 Apparatus in a microwave system
12/26/2002US20020197972 Image rejection mixer with switchable high or low side injection
12/19/2002US20020193089 Even-order non-linearity correction feedback for gilbert style mixers
12/19/2002US20020193083 Frequency conversion circuit and transmitter
12/19/2002US20020191117 Frequency conversion circuit, demodulation circuit, and television receiving device
12/19/2002US20020190783 Low pass filter corner frequency tuning circuit and method
12/18/2002EP1266447A2 Assembly and method for compensating the offset of a mixer
12/18/2002EP0855041B1 A gps receiver and method for processing gps signals
12/17/2002US6496545 Single side-band mixer
12/12/2002US20020186085 Voltage controlled oscillation device
12/11/2002EP1264399A1 Frequency converter
12/11/2002CN1096153C Radio receiver of suppressing damping-characteristic of low-frequency signals and method thereof
12/10/2002US6492914 Filter-provided device
12/05/2002WO2002098004A2 Quadrature alignment in communications receivers
12/05/2002US20020183030 Frequency plan
12/05/2002US20020183018 Circuit configuration for direct modulation
12/05/2002US20020181619 Quadrature alignment in communications receivers
12/05/2002US20020180001 System and method for ESD protection
12/04/2002EP1012620B1 Fmcw sensor
11/2002
11/28/2002WO2002096099A2 Quadrature demodulator
11/28/2002WO2002095962A2 Quadrature envelope-sampling of intermediate frequency signal in receiver
11/28/2002US20020177425 Alignment methods and apparatus for I/Q phase and amplitude error correction and image rejection improvement
11/28/2002US20020176528 Frequency converter arrangement
11/28/2002US20020176522 Quadrature envelope-sampling of intermediate frequency signal in receiver
11/28/2002US20020176515 Method of frequency multiplication in a radiocommunications apparatus
11/27/2002EP1260830A2 A GPS receiver and method for processing GPS signals
11/27/2002EP1259997A1 Signal combiner
11/27/2002CN1382320A Method for regulating frequency offset in base-station receiver of data communications system
11/26/2002US6487221 Digital device and method for filtering, decimation and transposition into distributed baseband and corresponding digital modulator
11/21/2002WO2002093732A2 Tuner circuit using polyphase filters and mixer
11/21/2002WO2002093731A1 Circuit arrangement for translating an oscillator frequency into a carrier frequency
11/21/2002US20020173288 DC offset calibration for a radio transceiver mixer
11/20/2002EP1259004A1 Frequency converter and communication device
11/20/2002EP1258119A2 Cascade frequency translator using phaseshifted local oscillator signals
11/20/2002EP1258077A2 Circuit configuration for direct modulation
11/20/2002CN1381090A Autocalibration of transceiver through nulling of DC-voltage in a receiver and injecting of DC signals in a transmitter
11/19/2002US6484038 Method and apparatus for generating a plurality of reference frequencies in a mobile phone using a common crystal reference oscillator
11/14/2002US20020167369 Frequency converter, orthogonal demodulator and orthogonal modulator
11/14/2002DE10122830A1 Down converter has two stages controlled by separate in phase and quadrature signals
11/13/2002EP1257052A2 Demodulator
11/13/2002EP1018223B1 Broad band digital radio receiver for multicarrier signal
11/13/2002CN1379928A Pi/2 phase shifter
11/13/2002CN1379544A Frequency conversion circuit
11/12/2002US6480703 Common carrier, multiple output RF upconverter
11/12/2002US6480046 Transmitter apparatus and methods using frequency doubling modulation
11/07/2002WO2002089313A2 Multiple frequency converter using digital mixers
11/07/2002WO2002089312A2 Frequency conversion by undersampling
11/07/2002WO2002088764A1 Lorentz force driven mechanical filter/mixer designs for rf applications
11/07/2002WO2000024117A9 Method and system for down-converting an electromagnetic signal
11/07/2002US20020164971 Method and apparatus in a microwave system
11/07/2002US20020164961 Transmitter and receiver circuit for radio frequency signals
11/07/2002US20020163981 Switched capacitor network for tuning and downconversion
11/07/2002US20020163375 On-chip integrated mixer with balun circuit and method of making the same
11/05/2002US6477360 Frequency converter
11/05/2002US6477182 Data transmission method and apparatus
11/05/2002US6476684 Low noise frequency modulator having variable carrier frequency
11/05/2002US6476428 Field effect transistor, control method for controlling such a field effect transistor and a frequency mixer means including such a field effect transistor
10/2002
10/31/2002WO2001080418A3 Frequency converter
10/31/2002US20020160809 Applications of universal frequency translation
10/31/2002US20020160741 Image rejection mixer with mismatch compensation
10/31/2002US20020160740 Interference reduction for direct conversion receivers
10/31/2002US20020160738 DC offset correction for use in a direct-conversion radio architecture
10/31/2002US20020160736 Frequency scanning receiver
10/31/2002US20020158990 Frequency converter
10/31/2002DE10214724A1 Frequenzwandelschaltung Frequency conversion circuit
10/30/2002EP1253758A1 Method of modulation by frequency division followed by frequency multiplication, and corresponding radio frequency device
10/30/2002EP1253756A1 Method of frequency multiplication in a radio communication system
10/30/2002EP1252708A2 Mixer circuit and corresponding method
10/30/2002EP1252706A1 Oscillator/mixer circuit
10/30/2002CN1093706C Multiple-band mobile transceiver having smaller number of local oscillators
10/29/2002US6473593 Multiple channel upconverter having adjacent channel output and method of implementing the same
10/29/2002US6473471 Slope drift and offset compensation in zero-if receivers
10/29/2002US6472925 Mixer circuit with negative feedback filtering
10/24/2002WO2002084859A1 Balanced circuit arrangement and method for linearizing such an arrangement
10/24/2002WO2002025803A3 Complex valued delta sigma phase locked loop demodulator
10/24/2002US20020154249 Intermediate frequency circuit of television tuner, which is not influenced by saw filter characteristics
10/23/2002EP1250761A1 Digital divider as a local oscillator for frequency synthesis
10/17/2002WO2002082809A1 Combination tuner for earth and satellite broadcasting
10/17/2002WO2002082635A1 Amplifier-mixer device
10/17/2002WO2002082583A1 Power-mixer architecture for transmitters
10/17/2002US20020151289 DC offset correction scheme for wireless receivers
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