| Patents for H03C 3 - Angle modulation (3,926) |
|---|
| 12/31/2009 | US20090322439 Phase locked loop based frequency modulator with accurate oscillator gain adjustment |
| 12/31/2009 | US20090322438 Extended multi-modulus prescaler |
| 12/29/2009 | US7639992 Digital compensation for nonlinearities in a phase-locked loop of a polar transmitter |
| 12/29/2009 | US7639756 Apparatus and method for adjusting quadrature modulator, communication apparatus and program |
| 12/24/2009 | US20090318107 DC Offset, Re-Radiation, and I/Q Solutions Using Universal Frequency Translation Technology |
| 12/24/2009 | US20090315632 Modulation Circuit, Modulation Method, Program and Communication Apparatus |
| 12/23/2009 | WO2009155445A2 Integrated renewable energy generation and storage systems and associated methods |
| 12/23/2009 | CN201369703Y Electronic load regulator of small water-turbine generator set |
| 12/17/2009 | US20090310689 Method for modulating a carrier signal and method for demodulating a modulated carrier signal |
| 12/16/2009 | CN201365226Y External modulation free-running multivibrator with temperature compensation |
| 12/15/2009 | US7633934 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones |
| 12/10/2009 | WO2009147793A2 Self-calibrating modulator apparatuses and methods |
| 12/03/2009 | US20090295493 Self-Calibrating Modulator Apparatuses and Methods |
| 12/02/2009 | CN100566198C Method for modulating an output voltage of a RF transmitter circuit, and RF transmitter circuit |
| 11/26/2009 | US20090289666 Direct digital synthesis frequency synthesizer and associated methods |
| 11/25/2009 | CN100563109C Pll电路 Pll circuit |
| 11/18/2009 | EP2118998A2 Predistortion of pulse modulator for correction of slewing distortion |
| 11/17/2009 | US7619487 Polar modulation without analog filtering |
| 11/05/2009 | US20090275358 Two-Point Polar Modulator and Method for Generating a Polar-Modulated Signal Based on Amplitude Information and Phase Information |
| 11/04/2009 | EP2114045A1 Cancelling out of the imperfections of a modulator |
| 10/29/2009 | US20090268847 Phase locked loop modulator calibration techniques |
| 10/29/2009 | US20090267701 Quadrature modulator and calibration method |
| 10/27/2009 | US7610032 System and method for frequency translation with harmonic suppression using mixer stages |
| 10/27/2009 | US7609123 Direct modulation type voltage-controlled oscillator using MOS varicap |
| 10/22/2009 | US20090262861 Feedback Compensation Detector For A Direct Conversion Transmitter |
| 10/21/2009 | EP2109933A1 Real time vco gain non linearity calibration |
| 10/21/2009 | CN101562598A Apparatus and method for adjusting quadrature modulator, and communication apparatus |
| 10/15/2009 | US20090257528 Quadrature modulation without carrier |
| 10/14/2009 | CN101558555A Frequency modulator using a phase loop, and method |
| 10/14/2009 | CN100550873C Communication transmitter using offset phase-locked-loop |
| 10/13/2009 | CA2505751C Correction of amplitude and phase imbalance in psk receivers |
| 10/08/2009 | US20090251231 Polar feedback architecture |
| 10/06/2009 | US7599462 Hybrid analog/digital phase-lock loop with high-level event synchronization |
| 09/30/2009 | CN100546230C Radio transmitter testing method, radio transmitter and base station |
| 09/29/2009 | US7596185 Radio transmitter with variable amplifier units in the baseband section and in the radio-frequency section of the transmission path |
| 09/23/2009 | EP2104238A1 Apparatus for modulating an analog signal in a frequency wideband with a digital modulation signal |
| 09/16/2009 | EP2101407A2 IQ transmitter |
| 09/16/2009 | EP2005574B1 Radio frequency pwm & ppm modulator |
| 09/10/2009 | US20090224845 Modulation signal generation circuit, transmission/reception module, and radar device |
| 09/08/2009 | US7586907 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones |
| 09/08/2009 | US7586861 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones |
| 08/25/2009 | US7580684 Programmable radio transceiver |
| 08/25/2009 | US7580478 I/Q modulator using current-mixing and direct conversion wireless communication transmitter using the same |
| 08/25/2009 | US7580473 Method for modulating a carrier signal and method for demodulating a modulated carrier signal |
| 08/25/2009 | US7580384 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones |
| 08/25/2009 | US7579922 Two-point modulation polar transmitter architecture and method for performance enhancement |
| 08/25/2009 | US7579919 Method and apparatus for compensating temperature changes in an oscillator-based frequency synthesizer |
| 08/20/2009 | US20090207941 Delay-Based Modulation of RF Communications Signals |
| 08/20/2009 | US20090206941 Charge pump-based frequency modulator |
| 08/19/2009 | CN100530939C Frequency modulation device, transmission device containing the same and wireless communication machine |
| 08/19/2009 | CN100530938C Wide-band modulation PLL, timing error correction system, method and adjusting method |
| 08/18/2009 | US7576623 Amplitude modulation driver |
| 08/13/2009 | WO2009099953A1 Integrated frequency calibration architecture |
| 08/11/2009 | US7573348 Arrangement and method for determining a gradient factor for a digitally controlled oscillator, and phase locked loop |
| 08/05/2009 | EP1952529B1 Polar modulation apparatus and method using fm modulation |
| 08/04/2009 | US7570712 System and method for transmitting ultrawide bandwidth signals |
| 08/04/2009 | CA2460295C Method and apparatus for digital vector qam modulator |
| 07/30/2009 | US20090193309 Device and method for correcting a data error in communication path |
| 07/29/2009 | EP2083515A2 Phase locked loop calibration |
| 07/29/2009 | EP2083514A2 Signal generation |
| 07/29/2009 | EP1766797B1 Weighted mixing circuitry for quadrature processing in communication systems |
| 07/22/2009 | CN100517985C Transmission circuit and transmitter/receiver using same |
| 07/21/2009 | US7564935 AGC circuit which is hard to be influenced by level of input signal |
| 07/21/2009 | US7564318 Switch capacitance and varactor banks applied to voltage controlled oscillator having constant frequency tuning sensitivity |
| 07/14/2009 | US7561002 Method and apparatus for frequency modulating a periodic signal of varying duty cycle |
| 07/08/2009 | EP2076960A2 Microwave oscillator using integrated circuit technology |
| 07/07/2009 | US7557671 Real time VCO gain non linearity calibration |
| 06/30/2009 | US7554416 Multi-band LC resonance voltage-controlled oscillator with adjustable negative resistance cell |
| 06/30/2009 | CA2548524C Device with improved serial communication |
| 06/25/2009 | US20090160572 Communication apparatus |
| 06/24/2009 | CN101467345A Polar signal generator |
| 06/24/2009 | CN100505514C Device including a circuit with adjusting means for adjusting at least one characteristic signal value of a modulated signal |
| 06/23/2009 | US7550977 Method and apparatus to measure differential phase and frequency modulation distortions for audio equipment |
| 06/17/2009 | CN100502229C Mixer circuit for direct conversion transceiver with improved second intermodulation product |
| 06/16/2009 | US7548742 Tuner for radio frequency receivers and associated method |
| 06/16/2009 | US7548737 System and apparatus for a direct conversion receiver and transmitter |
| 06/16/2009 | US7548593 Baseband compensation of an offset phase locked loop |
| 06/16/2009 | US7548591 Quadrature modulator and calibration method |
| 06/16/2009 | US7548133 Modulation of an RF transmit signal |
| 06/09/2009 | US7545865 Apparatus, methods and articles of manufacture for wideband signal processing |
| 06/09/2009 | US7545232 Polar modulator arrangement and polar modulation method |
| 06/04/2009 | US20090141817 Method for Reducing Spectral Regrowth in a Spectrally Efficient Digital Modulation Scheme |
| 06/04/2009 | US20090141788 Balancing amplitude and phase |
| 06/03/2009 | EP1097508B2 Method and apparatus for compensating for distortion in iq modulators |
| 06/02/2009 | US7542520 Apparatus and method for implementing a low complexity digital modulator |
| 06/02/2009 | US7542511 Wireless RF link for uncompressed transmission of HDTV signals |
| 05/27/2009 | CN100492878C Oscillator and PLL circuit using the same |
| 05/26/2009 | US7539474 DC offset, re-radiation, and I/Q solutions using universal frequency translation technology |
| 05/26/2009 | US7538630 Voltage controlled oscillator |
| 05/26/2009 | US7538623 Phase locked loop modulator calibration techniques |
| 05/20/2009 | DE102008048061A1 Inductance-capacitance (LC) quadrature oscillator has mismatch compensator that compensates for phase and amplitude mismatches of predetermined clock signals and having amplitude mismatch detector |
| 05/20/2009 | CN100490303C Single point modulator having a PLL circuit |
| 05/19/2009 | US7535310 Distortion compensation circuit |
| 05/13/2009 | EP1446885A4 Fractional-n type frequency synthesizer |
| 05/13/2009 | CN101432963A Phase modulator |
| 05/12/2009 | US7532696 Calibration device for a phased locked loop synthesiser |
| 05/12/2009 | US7532682 Quadrature modulation without carrier |
| 05/12/2009 | US7532044 Photodetector |
| 05/07/2009 | WO2009057289A1 Spectrum spread clock generation device |
| 05/07/2009 | WO2009056361A2 Pll calibration |