Patents
Sitemap › H03 - Basic electronic circuitry › H03C - Modulation › H03C 3 - Angle modulation
Patents for H03C 3 - Angle modulation (3,926)
11/2003
11/11/2003US6647073 Linearisation and modulation device
11/06/2003US20030206056 Direct digital polar modulator
11/05/2003CN1454421A Data transmission using pulse width modulation
11/04/2003US6643499 Apparatus and method for controlling a phase-locked loop circuit
10/2003
10/30/2003US20030203724 Accurate gain direct modulation (KMOD) using a dual-loop PLL
10/30/2003US20030201837 Modulating module incorporating a harmonically distorted modulator, and frequency shifting module with a harmonic mixer
10/29/2003EP1356651A2 Compensation method for a transceiver using two-point modulation
10/23/2003WO2003088494A1 Low leakage charge pump
10/23/2003US20030198311 Fractional-N frequency synthesizer and method
10/22/2003EP0867066B1 Digital calibration of a transceiver
10/22/2003CN1451202A Frequency modulator using a waveform generator
10/16/2003WO2001099270A3 Gilbert cell multiplier in a quadrature modulator
10/15/2003EP1352476A2 Precision oven-controlled crystal oscillator
10/09/2003WO2003001759A3 Cycle-by-cycle synchronous waveform shaping circuits based on time-domain superposition and convolution
10/09/2003US20030189988 FIR chip for use in a wireless subscriber unit
10/02/2003WO2003081868A2 Two-point modulator assembly
09/2003
09/25/2003WO2003079563A1 Frequency doubling circuit arrangement and mobile radio set comprising said circuit arrangement
09/25/2003WO2003079536A2 Transmitter arrangement for frequency modulation
09/25/2003WO2003032493A3 Compensating method for a pll circuit that functions according to the two-point principle, and pll circuit provided with a compensating device
09/25/2003US20030181190 Method and apparatus for improving dynamic range in a communication system
09/25/2003US20030181189 Method and apparatus for reducing DC offsets in communication systems using universal frequency translation technology
09/25/2003US20030181186 Reducing DC offsets using spectral spreading
09/24/2003CN1444346A Frequency hooping communication device with simple structure
09/24/2003CN1444338A Frequency modulator, frequency modulation method and radio line
09/23/2003US6625424 Autocalibration of a transceiver through nulling of a DC-voltage in a receiver and injecting of DC-signals in a transmitter
09/18/2003WO2003077490A1 Pseudo-noise carrier supression/image rejection up and down converters
09/18/2003WO2003036789A3 Radio frequency amplifier
09/18/2003WO2003023948A3 Transmitter arrangement especially for mobile radio
09/18/2003US20030174026 Frequency modulator, frequency modulating method, and wireless circuit
09/18/2003US20030174025 Precision oven-controlled crystal oscillator
09/17/2003EP1345375A2 Method and apparatus for frequency modulation
09/16/2003US6621366 Parallel-process digital modulator structures and methods
09/16/2003US6621364 Voltage-controlled oscillator for frequency modulation
09/12/2003WO2003075529A1 Modulator/transmitter apparatus and method
09/12/2003WO2002037666A3 Iq modulator
09/11/2003US20030171107 Differential frequency down-conversion using techniques of universal frequency translation technology
09/10/2003EP1101079B1 Dual output capacitance interface circuit
09/09/2003US6618096 System and method for adaptively balancing quadrature modulators for vestigial-sideband generation
09/04/2003WO2003073601A2 Method for adjusting a two-level modulator and two-level modulator with an adjusting device
09/04/2003WO2003073600A1 Oscillator and pll circuit using the same
09/03/2003EP1243070B1 Dielectric resonator oscillator and voice control device
09/03/2003EP1072087B1 Voltage controlled oscillator
09/02/2003US6614768 Enhanced mobility and address resolution in a wireless premises based network
09/02/2003US6614323 Modulated RF pulse waveform generation method and device
08/2003
08/28/2003WO2003071755A1 Method for detecting quadrature modulator carrier leak adjusting point by geometrical analysis/calculation method, carrier leak adjusting method, and quadrature modulation apparatus
08/28/2003WO2002099961A3 Two-point modulator comprising a pll circuit and a simplified digital pre-filtering system
08/27/2003CN1119854C Direct digital synthesis of precise, stable angle modulated RF signal
08/26/2003US6611570 Programmable digital intermediate frequency transceiver
08/21/2003WO2003069772A2 Digital modulator
08/21/2003WO2003069770A2 A point-modulator with a pll circuit
08/21/2003WO2003013191A3 Method and device for compensating a phase error in a receiver and/or transmitter system with an i/q-interface
08/20/2003CN1118997C 信号发送回路 Signaling circuit
08/20/2003CN1118944C Linear transmitter using precorrection
08/14/2003US20030153286 Radio frequency modulator
08/12/2003US6606005 Phase-locked loop circuit capable of adjusting the frequency range of spread spectrum clock
08/07/2003WO2003065585A1 Transceiver using a harmonic rejection mixer
08/07/2003WO2003012977A3 Circuit arrangement for the regulation of a direct component of a signal and mobile radio transmitter
08/07/2003WO2002075927A3 Frequency closed loop for frequency modulation
08/07/2003CA2474129A1 Transceiver using a harmonic rejection mixer
08/06/2003EP1012963B1 Low noise gilbert multiplier cells and quadrature modulators, and related methods
08/06/2003CN1117426C Multi-carrier transmitting apparatus and method
07/2003
07/31/2003US20030143966 Mixer circuit with spurious rejection by using mismatch compensation
07/24/2003WO2003061108A1 Voltage-controlled oscillator circuit for direct modulation
07/24/2003WO2003019769A3 Transmitter system, especially for cellular telephony
07/24/2003WO2002095948A3 Phase control loop
07/24/2003WO2002067428A3 Compensation method and compensating device for a pll circuit for two-point modulation
07/24/2003US20030139148 Wireless transmitter having a modified translation loop architecture
07/23/2003CN1115787C Transmitter comprising VCO
07/22/2003US6597925 Transmitter circuit with frequency self-optimization
07/22/2003US6597247 Circuit for the frequency multiplication of an angle modulated signal using a PLL and method
07/15/2003US6593773 Power saving circuitry using predictive logic
07/10/2003WO2003017507A3 Transmitter apparatus and methods using frequency doubling modulation
07/10/2003WO2002056523A3 Method and apparatus to remove effects of i-q imbalances of quadrature modulators and demodulators in a multi-carrier system
07/09/2003CN1429446A Gain controller for quadrature tranceiver
07/09/2003CN1114314C Multi-tap radio frequency modulator
07/03/2003US20030125065 Method and apparatus for generating an output signal
07/02/2003CN1113452C Low noise gilbert multiplier cells and quarature modulators, and related method
07/01/2003US6587521 Signal estimator and program stored memory medium
07/01/2003US6587516 Subscriber unit producing a modulated digital frequency
07/01/2003US6587513 Predistorter
07/01/2003US6587011 Low cost digital FM modulator
06/2003
06/26/2003WO2003052937A1 Low noise synthesiser
06/26/2003WO2003052936A1 Improvements relating to frequency synthesis
06/26/2003US20030118143 Direct modulation architecture for amplitude and phase modulated signals in multi-mode signal transmission
06/25/2003EP1320934A2 Frequency translator using a cordic phase rotator
06/19/2003US20030114123 Automatic frequency deviation detection and correction apparatus
06/19/2003US20030112893 Digital frequency modulator
06/11/2003EP1318598A1 Modulator using a phase lock loop, and process
06/11/2003EP1317796A1 Frequency adjustable oscillator and methods of operation
06/10/2003US6577201 Precision oven-controlled crystal oscillator
06/05/2003WO2003047088A2 Frequency modulator using switched capacitors
06/05/2003WO2002067441A3 Calibration of in-phase and quadrature transmit branches of a transmitter
06/05/2003WO2002063772A3 Sigma-delta programming device for a pll-frequency synthesizer
06/05/2003US20030102931 Device including a circuit with adjusting means for adjusting at least one characteristic signal value of a modulated signal
06/03/2003US6574286 Modulation system having on-line IQ calibration
05/2003
05/30/2003WO2003013093A3 Signal decomposition for the control of its dynamic range
05/29/2003US20030098754 Modulated RF pulse waveform generation method and device
05/28/2003EP1315284A1 Direct-conversion transmitting circuit and integrated transmitting/receiving circuit
05/28/2003EP1315283A2 A mobile radiotelephone
05/27/2003US6570452 Fractional-N type frequency synthesizer
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