Patents
Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673)
10/2001
10/17/2001EP1145422A1 Adjustable balanced modulator
10/17/2001EP1145318A2 System and method for esd protection
10/17/2001EP1145030A2 Multi-conversion radar detector having increased tuning range and self-calibrating function
10/17/2001CN1073309C Transmitte-receiver
10/11/2001US20010028321 GPS receiver utilizing a communication link
10/10/2001EP1143608A2 Multiple stage frequency translator
10/10/2001EP1143607A2 Balanced Mixer using FETS
10/10/2001EP1142121A1 Circuit for the frequency multiplication of an angle modulated signal using a pll and method
10/10/2001CN1072861C Multi-channel digital transceiver and method thereof
10/09/2001US6300832 Gain variable amplifier apparatus having improved gain control linearity characteristics
10/04/2001WO2000027026A3 Combined cmos mixer and circuit
10/04/2001US20010027095 Image rejection mixer
10/04/2001US20010027094 Image rejection
10/04/2001US20010027091 Single balanced mixer
10/04/2001US20010026597 Synthesizer receiver
10/04/2001EP1145423A3 Combined cmos mixer and vco circuit
10/04/2001EP1101285A4 Single chip cmos transmitter/receiver and vco-mixer structure
10/03/2001CN1316128A Circuit arrangement providing impedance translation filtering
10/03/2001CN1072427C 数字数据接收机 Digital data receiver
10/02/2001US6298224 Multiple frequency band receiver
10/02/2001US6298096 Method and apparatus for determination of predistortion parameters for a quadrature modulator
09/2001
09/27/2001WO2001071906A2 Integrated frequency translation and selectivity with gain control functionality, and applications thereof
09/27/2001WO2001071904A1 Autocalibration of a transceiver through nulling of a dc-voltage in a receiver and injecting of dc-signals in a transmitter
09/27/2001US20010024481 Direct-conversion demodulator having automatic-gain-control function
09/27/2001US20010024450 Method for forming an intermediate frequency signal in a mixer, and a mixer
09/26/2001EP1137211A1 Radio transmitter/receiver and method of radio communication
09/26/2001EP1137178A1 Circuit comprising a filter and method for operating a circuit comprising a filter
09/26/2001EP1137168A2 Method and mixer for forming an intermediate frequency signal
09/26/2001EP1135853A1 Integrated frequency translation and selectivity with a variety of filter embodiments
09/26/2001EP0683939B1 Radio transceiver comprising an arrangement for compensating for a dc component
09/20/2001WO2001069876A1 Compensation of mismatch in quadrature devices
09/20/2001WO2001069783A1 Frequency converter
09/20/2001WO2001069777A2 Assembly and method for compensating the offset of a mixer
09/19/2001EP1134889A1 Apparatus to compensate the input-offset of a mixer, and method
09/13/2001WO2001067592A2 Direct conversion up-converter for broadband wireless access equipment
09/13/2001US20010021645 Mixer circuit
09/12/2001EP1133051A1 A mixer circuit
09/12/2001EP1131929A1 Method and apparatus for the determination of the predistortion parameters in a quadrature modulator, by measuring the output power
09/07/2001WO2001065680A2 Architecture for intermediate frequency decoder
09/07/2001WO2001039364A8 Two stage quatrature down converter for gps and glonass
09/06/2001US20010019950 RF signal receiving method and circuit with high degree of signal isolation
09/05/2001EP1130768A2 A low supply voltage analog multiplier
09/05/2001EP1000491A4 Biphase modulator with balun design
09/05/2001CN1070662C 无线电接收机 Radio receiver
09/04/2001US6285865 System and method for on-chip filter tuning
08/2001
08/30/2001WO2001063688A1 Signal combiner
08/30/2001WO2000044087A9 Down-converter using sine to square wave converter
08/30/2001US20010018334 Upconverter mixer circuit
08/29/2001EP1128547A2 Gilbert cell mixer
08/29/2001EP1128546A1 Upconverter mixer circuit
08/29/2001EP1127440A1 Phase interpolation receiver for angle modulated rf signals
08/28/2001US6282414 Wireless selective call receiving apparatus which can reduce current consumption and wireless selective call receiving method
08/28/2001US6282413 Multistaged frequency conversion with single local oscillator
08/28/2001US6282252 Receiver for data transmission
08/28/2001US6282249 Satellite receiver
08/23/2001US20010016480 Reception IC and receiving apparatus employing the same
08/23/2001US20010016018 Variable resolution bandwidth control for data receiver
08/23/2001US20010016016 Power amplification using a direct-upconverting quadrature mixer topology
08/22/2001EP1126600A2 Variable resolution bandwidth control for data receiver
08/22/2001EP1125411A1 Method and system for adjusting spurious lines of an output frequency spectrum in a sideband frequency translating device
08/22/2001EP1125359A1 Method and system for down-converting an electromagnetic signal
08/22/2001CN1309842A Radio terminal device
08/22/2001CN1309836A Multiband frequency generation using single PLL-circuit
08/22/2001CN1309835A Single chip CMOS transmitter/receiver and VCO-mixer structure
08/22/2001CN1309476A Receiving of IC and receiving device thereby
08/21/2001US6278872 Frequency converter with improved linearity
08/21/2001US6278870 Phasing receivers
08/16/2001US20010014594 Dual digital low IF complex receiver
08/16/2001US20010013811 Grounded emitter amplifier and a radio communication device using the same
08/16/2001US20010013622 Field effect transistor, control method for controling such a field effect transistor and a frequency mixer means including such a field effect transistor
08/16/2001DE10100559A1 Einfachsymmetrischer Mischer Simply Balanced Mixer
08/14/2001US6275688 Double balanced mixer
08/14/2001US6275686 Differential phase shift amplifier of electrical or physical quantities
08/14/2001US6275020 Frequency analysis method and sweep type spectrum analyzer
08/09/2001WO2001058103A2 Kaskadenfrequenzumsetzer unter verwendung von phasenverschobenen signalen der lokalen oszillatoren
08/08/2001CN1307752A Radio terminal
08/07/2001US6272430 GPS receiver and method for processing GPS signals
08/07/2001US6272312 Satellite broadcasting receiving tuner which inhibits interference caused by satellite broadcast signals having one octave higher frequency band
08/07/2001US6271737 Communication device with feedback for cancellation of perturbations
08/07/2001US6271730 Voltage-controlled oscillator including current control element
08/07/2001CA2237619C Frequency conversion circuit and method for millimeter wave radio
08/02/2001US20010011013 System and method for on-chip filter tuning
08/01/2001EP1119903A1 Circuit for mixing an input signal and an oscillator signal with each other
08/01/2001CN1306699A Direct conversion receiver
08/01/2001CN1306366A Direct conversion demodulator with automatic gain control function
07/2001
07/31/2001US6269253 Multi-mode wireless communication system
07/31/2001US6268818 Method and apparatus for improving modulation accuracy
07/26/2001WO2001054267A1 Radio fm receiver
07/26/2001WO2001054266A2 Mixer circuit and corresponding method
07/26/2001WO2001017120A3 Freqency translator using a non-periodic local oscillator signal
07/26/2001WO2000028664A3 Fully integrated tuner architecture
07/25/2001EP1119102A2 Feedback circuit and amplifier and mixer comprising the same
07/24/2001US6266518 Method and system for down-converting electromagnetic signals by sampling and integrating over apertures
07/19/2001WO2001052431A1 An rf front-end with a multistage stepdown filtering architecture
07/19/2001WO2001052427A1 Transmitter and radio communication terminal using the same
07/19/2001WO2001052420A1 Digital divider as a local oscillator for frequency synthesis
07/19/2001US20010008430 System and method for providing a low power receiver design
07/19/2001US20010008384 Method for generating frequencies in a dual phase locked loop
07/19/2001US20010008383 Feedback circuit and amplifier and mixer comprising the same
07/19/2001DE19963647A1 Mixer device for digital signal processor has successive mixers supplied with different carrier signals by 2 signal generators using system clock signal and derived control signal
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