| Patents for H03C 3 - Angle modulation (3,926) |
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| 04/07/2004 | CN1488219A Compensation method for a transceiver using two-point modulation |
| 04/07/2004 | CN1145388C Signal processing method for radio communication, radio receiver and transmitting machine |
| 04/06/2004 | US6717476 Modulator |
| 04/01/2004 | WO2004027997A1 Phase-locked loop |
| 04/01/2004 | WO2004027980A1 Integrated modulator and demodulator configuration |
| 04/01/2004 | DE10241991A1 Phase-locked loop with variable bandwidth, has constant ratio of variable division values of frequency dividers provided in forward and feedback paths |
| 03/31/2004 | EP1402696A2 Cycle-by-cycle synchronous waveform shaping circuits based on time-domain superposition and convolution |
| 03/31/2004 | EP1402624A2 Two-point modulator comprising a pll circuit and a simplified digital pre-filtering system |
| 03/30/2004 | US6714983 Modular, portable data processing terminal for use in a communication network |
| 03/25/2004 | WO2003006103A3 Electrical field stimulation of eukaryotic cells |
| 03/25/2004 | US20040056785 Integrated modulator and demodulator configuration |
| 03/25/2004 | DE10242364A1 Phase-locked loop for frequency modulation of mobile radio transmitter, has correction signal produced in evaluation unit from control voltage and reference VCO gain supplied, and connected to input of charge pump |
| 03/23/2004 | CA2240630C Digital calibration of a transceiver |
| 03/18/2004 | WO2004023656A1 Improvements relating to phase-lock loops |
| 03/17/2004 | CN1142667C Correction of amplitude and phase imbalance in PSK receiver |
| 03/16/2004 | US6707857 Reference signal pre-distortion for transmitter with frequency synthesizer based phase encoding |
| 03/11/2004 | WO2004021570A1 Voltage control oscillator and quadrature modulator |
| 03/11/2004 | WO2004021559A1 Phase locked loop method and apparatus |
| 03/11/2004 | WO2004021558A2 Method of modulation gain calibration and system thereof |
| 03/11/2004 | US20040048590 Trimming method for a transceiver using two-point modulation |
| 03/11/2004 | CA2496526A1 Phase locked loop having a forward gain adaptation module |
| 03/09/2004 | US6704551 Calibration of in-phase and quadrature transmit branches of a transmitter |
| 03/09/2004 | US6704518 Signal transmission system and signal transmission apparatus |
| 03/09/2004 | US6703969 Method for detecting and correcting non-linearities in a microwave radar system |
| 03/09/2004 | US6703902 Phase locked loop for reducing electromagnetic interference |
| 03/04/2004 | WO2004019479A1 Method and apparatus for reducing dynamic range of a power amplifier |
| 03/04/2004 | US20040041639 Frequency modulation corrector keeping a good oscillating signal quality and suppressing dependability of a modulation degree |
| 03/04/2004 | US20040041638 Digital modulation synthesizer |
| 03/04/2004 | US20040041636 Phase locked loop method and apparatus |
| 03/03/2004 | EP1290783B1 Digital modulation synthesizer |
| 03/02/2004 | US6700447 Trimming of a two point phase modulator |
| 02/26/2004 | WO2004017590A1 Fpga implementation of a digital qam modulator |
| 02/26/2004 | WO2004017511A1 Method and apparatus of compensating imbalance of a modulator |
| 02/26/2004 | US20040038717 Transaction control system including portable data terminal and mobile customer service station |
| 02/26/2004 | US20040037363 Resonant power converter for radio frequency transmission and method |
| 02/26/2004 | US20040036639 Sigma-delta programming device for a PLL frequency synthesizer, configuration using the sigma-delta programming device, PLL frequency device, and method for programming a programmable device |
| 02/26/2004 | US20040036539 Trimming method and trimming device for a PLL circuit for two-point modulation |
| 02/24/2004 | US6697416 Digital programmable, spread spectrum clock generator |
| 02/19/2004 | WO2004015856A1 Voltage control oscillator having modulation function |
| 02/19/2004 | US20040032913 Method and apparatus of compensating imbalance of a modulator |
| 02/19/2004 | DE4410721B4 Schaltung zur Erzeugung einer modulierten Oszillatorfrequenz Circuit for generating a modulated oscillator frequency |
| 02/18/2004 | CN1139283C Radio equipment including frequency synthesizer |
| 02/17/2004 | US6693969 Phase-locked loop methods and structures for generating modulated communication signals with nonconstant envelopes |
| 02/12/2004 | WO2003079536A3 Transmitter arrangement for frequency modulation |
| 02/10/2004 | US6690743 Compensation of delay in linearization loop of power amplifier |
| 02/10/2004 | US6690215 Sigma-delta-based frequency synthesis |
| 02/10/2004 | US6690210 Transmitting device |
| 02/05/2004 | WO2004012411A1 Mirror translation loop transmitter architecture |
| 02/03/2004 | US6687465 FM modulator |
| 01/29/2004 | US20040019620 Waveform generator for use in iq modulation |
| 01/29/2004 | US20040017858 Mirror translation loop transmitter architecture |
| 01/29/2004 | DE10228759A1 Schaltungsanordnung mit Phasenregelkreis und Sendeempfänger mit der Schaltungsanordnung Circuit with phase-locked loop and transceiver to the circuitry |
| 01/27/2004 | US6683918 High precision, low phase noise synthesizer with vector modulator |
| 01/22/2004 | WO2003081868A3 Two-point modulator assembly |
| 01/22/2004 | US20040012452 Frequency Adjustable oscillator and methods of operation |
| 01/20/2004 | US6681101 RF transmitter with extended efficient power control range |
| 01/14/2004 | CN1468470A Frequency translator using a cordic phase rotator |
| 01/13/2004 | US6677788 Semiconductor integrated circuit |
| 01/08/2004 | WO2004004267A2 Circuit arrangement provided with a phase-locked loop and transmitter-receiver with said circuit arrangement |
| 01/08/2004 | WO2003069770A3 A point-modulator with a pll circuit |
| 01/08/2004 | US20040005869 Wireless communications transceiver: transmitter using a harmonic rejection mixer and an RF output offset phase-locked loop in a two-step up-conversion architecture & receiver using direct conversion architecture |
| 01/08/2004 | US20040005866 Frequency hopping communication device with simple structure |
| 01/08/2004 | US20040004515 Modulator and demodulator |
| 01/06/2004 | US6674331 Method and apparatus for simplified tuning of a two-point modulated PLL |
| 01/02/2004 | EP1376968A1 A transceiver |
| 01/02/2004 | EP1374405A2 Frequency closed loop for frequency modulation |
| 01/02/2004 | EP1374386A2 Gilbert cell multiplier in a quadrature modulator |
| 01/01/2004 | US20040002321 Method and apparatus for reducing re-radiation using techniques of universal frequency translation technology |
| 12/30/2003 | US6671336 Gain controller for circuit having in-phase and quadrature channels, and method |
| 12/30/2003 | US6670861 Method of modulation gain calibration and system thereof |
| 12/24/2003 | CN1132389C 功率正交调制系统和方法 Quadrature modulation system and method for power |
| 12/23/2003 | US6668024 Radiofrequency transmitter with a high degree of integration and possibly with self-calibrating image deletion |
| 12/23/2003 | US6668008 Ultra-wide band communication system and method |
| 12/18/2003 | WO2003105430A2 A modulation system for modulating data onto a carrier signal with offsets to compensate for doppler effect and allow a frequency synthesizing system to make steps equal to channel bandwidth |
| 12/18/2003 | WO2003105334A1 Multimode modulator employing a phase lock loop for wireless communications |
| 12/17/2003 | EP1110303B1 System and method for frequency up-conversion |
| 12/17/2003 | CN1462511A System and apparatus for direct conversion receiver and transmitter |
| 12/11/2003 | US20030227982 Modulation system for modulating data onto a carrier signal with offsets to compensate for doppler effect and allow a frequency synthesizing system to make steps equal to channel bandwidth |
| 12/11/2003 | US20030227342 Multimode modulator employing a phase lock loop for wireless communications |
| 12/11/2003 | US20030227331 Frequency modulation system and method |
| 12/10/2003 | EP1368891A2 Iq modulator |
| 12/04/2003 | US20030222723 Fractional-frequency-modulation PLL synthesizer that suppresses spurious signals |
| 12/02/2003 | US6658066 Method and apparatus for multiple phase splitting for dual band IQ subharmonic mixer |
| 12/02/2003 | US6658065 System of and method for reducing or eliminating the unwanted sideband in the output of a transmitter comprising a quadrature modulator followed by a translational loop |
| 12/02/2003 | US6657505 Dielectric resonator oscillator and voice control device |
| 11/27/2003 | WO2003043179A3 Transmitter with transmitter chain phase adjustment on the basis of pre-stored phase information |
| 11/27/2003 | US20030218511 Oscillator and PLL circuit using the same |
| 11/26/2003 | EP1364468A2 Calibration of in-phase and quadrature transmit branches of a transmitter |
| 11/26/2003 | EP1166447B1 Method and apparatus for reducing oscillator noise by noise-feedforward |
| 11/26/2003 | EP1048110B1 A post-filtered sigma-delta for controlling a phase locked loop modulator |
| 11/25/2003 | US6654426 Correction of nonlinearity of I/Q modulator |
| 11/25/2003 | US6654378 Transaction control system including portable data terminal and mobile customer service station |
| 11/19/2003 | EP1362413A2 Compensation method and compensating device for a pll circuit for two-point modulation |
| 11/19/2003 | CN1457555A Calibration of in-phase and quadrature transmit branches of transmitter |
| 11/18/2003 | US6650721 Phase locked loop with numerically controlled oscillator divider in feedback loop |
| 11/18/2003 | US6650711 Quadrature modulation with reduced phase-error distortion |
| 11/13/2003 | WO2003073601A3 Method for adjusting a two-level modulator and two-level modulator with an adjusting device |
| 11/12/2003 | EP1360768A2 Sigma-delta programming device for a pll-frequency synthesizer |
| 11/11/2003 | US6647075 Digital tuner with optimized clock frequency and integrated parallel CIC filter and local oscillator |
| 11/11/2003 | US6647074 Removal of clock related artifacts from an offset QAM generated VSB signal |