219027 ⎘
Transference of modulation from one carrier to another, e.g. frequency-changing; Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
Linear and polar dual mode transmitter circuit
#302Integrated analog video receiver
#303Quadrature radio frequency mixer with low noise and low conversion loss
#304Circuit with programmable signal bandwidth and method thereof
#305Enhanced Mixer Device
#306Integrated RF-IF converter
#307Dual Gilbert Cell Mixer with Offset Cancellation
#308Transceiver development in VHF/UHF/GSM/GPS/bluetooth/cordless telephones
#309Gain-control methods of transmitter modulators
#310High dynamic range time-varying integrated receiver for elimination of off-chip filters
#311APPARATUS, INTEGRATED CIRCUIT, AND METHOD OF COMPENSATING IQ PHASE MISMATCH
#312Local oscillator buffer and mixer having adjustable size
#313FREQUENCY CONVERTER AND RECEIVER AND TRANSMITTER USING THE SAME
#314Receiving device for spread spectrum radar apparatus
#315Apparatus and methods for downconverting radio frequency signals
#316Mixer with high output power accuracy and low local oscillator leakage
#317Local oscillator buffer and mixer having adjustable size
#318Mixer circuit and radio communication device using the same
#319Apparatus and method for phase lock loop gain control using unit current sources
#320RTWO-based down converter
#321Highly linear and very low-noise down-conversion mixer for extracting weak signals in the presence of very strong unwanted signals
#322LO 2LO upconverter for an in-phase/quadrature-phase (I/Q) modulator
#323Rotating harmonic rejection mixer
#324Electrical device comprising analog frequency conversion circuitry and method for deriving characteristics thereof
#325Simplified high frequency tuner and tuning method
#326Simplified high frequency tuner and tuning method
#327Mixer with carrier leakage calibration
#328Integrated analog video receiver
#329Passive mixer and high Q RF filter using a passive mixer
#330LOW VOLTAGE IQ DUAL MIXER
#331Data communication via a voice channel of a wireless communication network using discontinuities
#332Mixer circuit and RF transmitter using such mixer circuit
#333Wideband resistive input mixer with noise-cancelled impedance
#334FREQUENCY CONVERTER, RADIO RECEIVER
#335Low intermediate frequency receiver and the same method thereof
#336Spur Rejection Techniques for an RF Receiver
#337Apparatus and method for phase lock loop gain control using unit current sources
#338Communication device, mixer and method thereof
#339Video receiver with DC offset cancellation
#340Method and system for configurable active/passive mixer and shared GM stage
#341Method and apparatus for receiving radio frequency signals
#342MIXER AND SIGNAL PROCESSING METHOD, SYSTEM-ON-CHIP COMPRISING SUCH A MIXER
#343Techniques for passive subharmonic mixing
#344Low Intermediate Frequency (If) Radio Receiver Circuits
#345Signal downconverter
#346Local oscillator with non-harmonic ratio between oscillator and RF frequencies using wideband modulation spectral replicas
#347Local oscillator apparatus and method
#348Sub-harmonic mixer and down converter with the same
#349Configurable circuits using phase change switches
#350Systems, methods, and apparatus for frequency conversion
#351MIXER WITH DYNAMIC INTERMEDIATE FREQUENCY FOR RADIO-FREQUENCY FRONT-END AND METHOD USING THE SAME
#352Frequency-converting circuit and down converter with the same
#353Multi-function passive frequency mixer
#354Radio-Receiver Front-End and A Method For Frequency Converting An Input Signal
#355Mixer circuits and methods
#356Direct conversion TV tuner and method thereof
#357Tri-state chopper for frequency conversion
#358Multi-band TV tuner and method thereof
#359Apparatus and method for phase lock gain control using unit current sources
#360Quadrature sub-harmonic frequency down-converter
#361Quadrature sub-harmonic frequency up-converter
#362Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same
#363Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same
#364Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same
#365Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same
#366Apparatus and method for phase lock loop gain control
#367Passive subharmonic mixer
#368Harmonic-rejection modulation device
#369Mixer arrangement
#370SUB-HARMONIC FREQUENCY CONVERSION DEVICE
#371System and method for performing RF filtering
#372Integrated Tuner for Terrestrial and Cable Television
#373Transceiver development in VHF/UHF/GSM/GPS/bluetooth/cordless telephones
#374Integrated circuit arrangement for converting a high-frequency bandpass signal to a low-frequency quadrature signal
#375Communication semiconductor integrated circuit device and a wireless communication system
#376Communication semiconductor integrated circuit device and a wireless communication system
#377Method of frequency planning in an ultra wide band system
#378Quadrature mixer circuit and RF communication semiconductor integrated circuit
#379Mixer circuit and method
#380Quadrature mixer circuits and mobile terminal using the same
#381INTEGRATED DIGITAL TELEVISION TUNER
#382Integrated direct conversion satellite tuner
#383Switching circuit, and a modulator, demodulator or mixer including such a circuit
#384Electrical device comprising analog frequency conversion circuitry and method for deriving characteristics thereof
#385Downconverting mixer
#386Mixing DAC architectures for a radio frequency receiver
#387Local oscillator with injection pulling suppression and spurious products filtering
#388Balanced circuit arrangement and method for linearizing such an arrangement
#389Low noise mixer
#390Downconversion mixer with IM2 cancellation
#391FREQUENCY CHANGER AND TUNER
#392Controllable mixer
#393Mixer for homodyne RF receiver
#394High frequency synthesizer circuits and methods
#395Low noise block converter
#396Apparatus and method for phase lock loop gain control
#397Selective channel tuner and tuning method
#398Mixer arrangement, use of the mixer arrangement and method for frequency conversion
#399Controlling fine frequency changes in an oscillator
#400Circuit and method for receiving and mixing radio frequencies in a direct conversion receiver
#401Apparatus and method for phase lock loop gain control using unit current sources
#402Variable signal delaying circuit, quadrature frequency converter and radio frequency tuner
#403Mixer circuits and methods with matched bias currents
#404Mixer circuits and methods with improved spectral purity
#405Higher linearity passive mixer
#406High-order harmonic rejection mixer using multiple LO phases
#407DC offset calibration for a radio transceiver mixer
#408Radio-frequency circuit
#409Radio frequency tuner
#410Receiver structures for selectable direct conversion and low intermediate frequency operational modes
#411Harmonic reject receiver architecture and mixer
#412Direct-conversion receiver system and method with quadrature balancing and DC offset removal
#413Mixer used in direct conversion transceiver and related method
#414Balanced circuit arrangement and method for linearizing such an arrangement
#415Current driven polyphase filters and method of operation
#416Apparatus and method for phase lock loop gain control using unit current sources
#417Apparatus and method for phase lock loop gain control using unit current sources
#418Method and system for output common mode control for reducing DC offset for an IF mixer that downconverts a received signal to DC without introducing additional offset
#419Method and system for sharing GM stage for a second if mixer using a polyphase clock to reduce current consumption and improve matching
#420I/Q quadrature demodulator
#421Digital modulation signal mixer
#422Direct-conversion frequency mixer
#423Communications receiver method and apparatus
#424Communication semiconductor integrated circuit and radio communication system
#425Voltage-current conversion circuit, amplifier, mixer circuit, and mobile appliance using the circuit
#426Mixer offset cancellation without generating I/Q imbalance
#427Low noise image reject mixer and method therefor
#428Signal processing system and method having increased bandwidth
#429Mixers with a plurality of local oscillators and systems based thereon
#430Frequency-mixing method and frequency-mixing device using the same
#431Simplified high frequency tuner and tuning method
#432Dynamically matched mixer system with improved in-phase and quadrature (I/Q) balance and second order intercept point (IP2) performance
#433Communication semiconductor integrated circuit device and a wireless communication system
#434Programmable mixer for reducing local oscillator feedthrough and radio applications thereof
#435Adaptive-biased mixer
#436Quadrature subharmonic mixer
#437Circuit arrangement for a wideband mixer with predistortion and high linearity
#438Systems and methods for adjusting the bias level of a mixer in a transmitter
#439Frequency conversion circuit, modulation circuit, polar modulation transmitting circuit, quadrature modulation transmitting circuit, communication instrument, and frequency conversion method
#440Low distortion quadrature mixer and method therefor
#441Differential voltage controlled oscillator using complementary transistors cross-coupled in series, and transceiver using the same
#442Integrated burst FSK receiver
#443Wideband I/Q signal generation device
#444Video receiver with reduced power mode
#445Integrated analog video receiver
#446Video receiver with adaptive image rejection
#447Video receiver with DC offset cancellation
#448Harmonic suppression mixer and tuner
#449Current interpolation in multi-phase local oscillator for use with harmonic rejection mixer
#450Integrated circuit and methods for third sub harmonic up conversion and down conversion of signals
#451Current driven polyphase filters and method of operation
#452Apparatus and method for digital down-conversion in a multi-mode wireless terminal
#453Mixer circuit and receiver circuit using the same
#454Frequency transposition method and device, in particular for the control of the transmission power of a cellular mobile telephone
#455CURRENT MODE IMAGE REJECTION MIXER AND METHOD THEREOF
#456Apparatus and method for phase lock loop gain control using unit current sources
#457System for tuning a corner frequency of a low pass filter
#458Mixer circuit for direct conversion transceiver with improved IP2
#459Apparatus and method for phase lock loop gain control using unit current sources
#460High dynamic range time-varying integrated receiver for elimination of off-chip filters
#461Radio-frequency mixer arrangement
#462Television tuner and method of processing a received RF signal
#463Low leakage local oscillator system
#464Frequency conversion circuit, radio frequency wave receiver, and radio frequency transceiver
#465Frequency conversion circuit arrangement and mobile radio comprising said circuit arrangement
#466Apparatus and method for phase lock loop gain control using unit current sources
#467Signal processing device for mobile radio
#468Frequency converter, orthogonal demodulator and orthogonal modulator
#469Transceiver architecture with reduced VCO-pulling sensitivity
#470High frequency signal receiver
#471Tuner for reception of digital and analog television signals
#472Television tuner and method of processing a received RF signal
#473Driving circuit producing DSB-SC modulation signal
#474Software defined radio (SDR) filter relaxation technique for multiple-input and multiple-output (MIMO) and large antenna array (LAA) applications
#475Power efficient radio frequency (RF) multipliers
#476Broadband sender system and method for running the latter
#477Concurrent support for multiple frequency bands for satellite navigation signals
#478High frequency digital-to-analog conversion by interleaving without return-to-zero
#479Multiple-resonator circuits and devices
#480High frequency digital-to-analog conversion by time-interleaving without return-to-zero
#481Apparatus and method for providing background real-time second order input intercept point calibration
#482Apparatus and method for providing east second order input intercept point calibration based on two tone testing
#483Multi-LO band switched-core frequency mixer