Patents
Patents for H03C 3 - Angle modulation (3,926)
11/2004
11/17/2004EP1476939A2 Method for adjusting a two-level modulator and two-level modulator with an adjusting device
11/11/2004WO2004098041A1 Method for modulating a carrier signal, and method for demodulating a modulated carrier signal
11/11/2004WO2004034564A3 Trimming of a two point phase modulator
11/11/2004US20040223572 Method and apparatus for measuring phase error of a modulated signal
11/04/2004WO2004095686A2 Quadrature modulator and calibration method
11/04/2004US20040217822 EMI reduction of oscillating signals by way of controlled randomized modulation
11/04/2004DE10357244A1 System und Verfahren zum Kalibrieren von symmetrischen Signalen System and method for calibrating of balanced signals
11/04/2004DE10357243A1 System und Verfahren zum Erzeugen von symetrischen Signalen mit willkürlicher Amplituden- und Phasensteuerung unter Verwendung einer Modulation System and method for generating symmetrical signals with arbitrary amplitude and phase control using a modulation
11/04/2004DE10357242A1 System und Verfahren zum Erzeugen von symetrischen modulierten Signalen mit willkürlicher Amplituden- und Phasensteuerung unter Verwendung einer Modulation System and method for generating modulated signals symmetrical with arbitrary amplitude and phase control using a modulation
11/03/2004EP1374405B1 Frequency closed loop for frequency modulation
11/03/2004EP1145517B1 Correction of amplitude and phase imbalance in psk receivers
10/2004
10/28/2004WO2004093309A1 Modulator and correction method thereof
10/28/2004US20040214534 Antenna phase modulator
10/28/2004US20040213364 Frequency shaping stream signal processor
10/28/2004US20040212524 PWM signal generator and PWM signal generating method
10/28/2004US20040212439 Voltage controlled oscillator
10/27/2004EP1471640A2 PWM signal generator and PWM signal generating method
10/26/2004US6810027 Multi-carrier transmitting apparatus and method
10/26/2004US6809607 Circuit and method for compensating for non-linear distortion
10/26/2004US6809598 Hybrid of predictive and closed-loop phase-domain digital PLL architecture
10/26/2004US6809585 Frequency modulation system and method
10/21/2004US20040207478 Self-adjusting I-Q modulator system
10/21/2004US20040207437 Phase locked loop
10/20/2004EP1468494A1 Transceiver using a harmonic rejection mixer
10/20/2004EP1360768B1 Sigma-delta programming device for a pll-frequency synthesizer
10/19/2004US6806780 Efficient modulation compensation of sigma delta fractional phase locked loop
10/14/2004WO2004088642A2 Frequency shaping stream signal processor
10/14/2004US20040201427 Phase locked loop that avoids false locking
10/13/2004EP1206831B1 Modem for wireless local area network
10/13/2004CN1171422C Transmitter
10/07/2004US20040196939 All-Digital Phase Modulator/Demodulator Using Multi-Phase Clocks and Digital PLL
10/07/2004US20040196924 Radio transmitter architecture comprising a PLL and a delta-sigma modulator
10/07/2004US20040196920 Wireless RF link for uncompressed transmission of HDTV signals
10/07/2004US20040196083 System and method for generating balanced signals with arbitrary amplitude and phase control using modulation
10/07/2004US20040196051 System and method for calibrating balanced signals
10/06/2004CN1535498A Method and device for compensating phase error in receiver and/or transmitter system with I/Q interface
10/05/2004US6801581 DC offset cancellation
10/05/2004US6801092 Phase locked loop that avoids false locking
09/2004
09/30/2004US20040192369 Method and apparatus for reducing dynamic range of a power amplifier
09/30/2004US20040192231 Two-point modulator comprising a pll circuit and a simplified digital pre-filtering system
09/30/2004US20040190645 System for processing digitized communication signals provided over plural RF channels
09/30/2004US20040189403 Communication semiconductor integrated circuit
09/30/2004DE19954255B4 Phase Lock Loop und diesbezügliches Verfahren Phase lock loop and method thereof
09/29/2004CN1533631A Circuit arrangement for regulation of direct component of a signal and mobile radio transmitter
09/28/2004US6798300 Oscillator and PLL circuit using the same
09/23/2004WO2004082145A1 Phase-locked loop circuit
09/23/2004US20040183614 Frequency modulation using a zero hz vco
09/23/2004US20040183602 RC and SC filter compensation in a radio transceiver
09/23/2004US20040183601 Maximally digitized fractional-N frequency synthesizer and modulator with maximal fractional spurs removing
09/22/2004EP1356651B1 Compensation method for a transceiver using two-point modulation
09/22/2004CN1168201C Method and device in telecommunication system
09/22/2004CN1168200C FM signal oscillation circuit and modulation level correcting method
09/22/2004CN1168199C Quadrature modulator with carrier leakage compensation
09/16/2004WO2004079924A2 Tuner for radio frequency receivers and associated method
09/16/2004WO2004079912A1 Improvements relating to frequency and/or phase lock loops
09/16/2004US20040178859 Efficient modulation compensation of sigma delta fractional phase locked loop
09/16/2004DE10308921A1 Phase locked loop (PLL) for frequency syntehsis for HF PLL in digital circuit technique for mobile radio application, e.g. in blue tooth standard, with digitally controllable oscillator
09/16/2004DE10308920A1 Phase locked loop (PLL) for frequency synthesis, i.e. generating signal with required frequency, with output signal of digitally energisable, voltage controlled oscillation (VCO) converted into allocated phase signal
09/15/2004EP1458158A2 Correction of amplitude and phase imbalance in PSK receivers
09/15/2004EP1456953A1 Low noise synthesiser
09/14/2004US6791422 Frequency synthesizer with digitally-controlled oscillator
09/09/2004US20040176058 Tuner for radio frequency receivers and associated method
09/09/2004US20040176045 Method and device for producing mobile radio signals
09/09/2004US20040174843 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
09/09/2004US20040174842 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
09/09/2004US20040174841 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
09/09/2004US20040174222 Phase modulating system
09/09/2004US20040174192 Method and apparatus for reconfigurable frequency generation
09/09/2004DE19539939B4 Codesender, insbesondere für ein Diebstahlschutzsystem eines Kraftfahrzeugs Code transmitter, in particular for a theft protection system of a motor vehicle
09/02/2004WO2004075395A1 Efficient modulation of rf signals
09/02/2004WO2004054107A3 Phase-locking loop with a modulator
09/02/2004US20040172438 Method for compensating for a phase error in a reception and/or transmission system having an I/Q interface
08/2004
08/31/2004US6784753 Method for modulating an output voltage of a RF transmitter circuit, and RF transmitter circuit
08/26/2004US20040166816 Wireless transmitter
08/26/2004US20040165573 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
08/25/2004EP1450479A1 Efficient modulation of RF signals
08/25/2004EP1449296A2 Transmitter with transmitter chain phase adjustment on the basis of pre-stored phase information
08/25/2004CN1524336A Trimming method and trimming device for a pll circuit for two-point modulation
08/24/2004US6782247 CMOS frequency conversion using dual mixers for sideband suppression
08/24/2004US6782038 Method and apparatus for radio communications
08/19/2004US20040162038 Method for detecting quadrature modulator carrier leak adjusting point by geometrical analysis/calculation method, carrier leak adjusting method, and quadrature modulation apparatus
08/19/2004US20040160913 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
08/19/2004US20040160912 Hierarchical data collection network supporting packetized voice communication among wireless terminals and telephones
08/18/2004EP1446885A1 Fractional-n type frequency synthesizer
08/17/2004US6778117 Local oscillator and mixer for a radio frequency receiver and related method
08/12/2004US20040157568 Circuit arrangement for the regulation of a direct component of a signal and mobile radio transmitter
08/12/2004DE10328375A1 Arrangement for generating quadrature modulated transmission signal has two phase modulators generating phase-modulated signals from two input signals, addition circuit for summing phase-modulated signals
08/11/2004CN1520667A Cycle-by-cycle synchronous waveform shaping circuits based on time-domain superposition and convolution
08/10/2004US6774740 System for highly linear phase modulation
08/10/2004US6774738 Trimming method for a transceiver using two-point modulation
08/10/2004US6774736 Voltage-controlled oscillator circuit for direct modulation
08/05/2004US20040151164 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
08/05/2004US20040151151 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
08/05/2004US20040151150 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
08/04/2004CN2631124Y Wide-dynamic-range predistortion circuit
07/2004
07/29/2004US20040146098 Modulation noise estimation mechanism
07/29/2004US20040146037 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
07/29/2004US20040146020 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
07/29/2004US20040145775 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
07/27/2004US6768391 Class-B biased gilbert cells and quadrature modulators
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