Patents
Sitemap › H03 - Basic electronic circuitry › H03C - Modulation › H03C 3 - Angle modulation
Patents for H03C 3 - Angle modulation (3,926)
05/1999
05/11/1999US5903194 Digital phase modulation of frequency synthesizer using modulated fractional division
05/06/1999WO1999022442A1 Radio frequency transmitters and receivers
05/04/1999US5900788 Low-noise oscillator circuit having negative feedback
05/04/1999US5900755 Digital sampling system
04/1999
04/27/1999US5898906 System and method for implementing a cellular radio transmitter device
04/22/1999WO1999019991A1 Digital radio-frequency transceiver
04/22/1999WO1999019990A2 Compensation of delay in linearization loop of power amplifier
04/13/1999US5894592 Wideband frequency synthesizer for direct conversion transceiver
04/13/1999US5894249 Digital and analog modulator in a simplified circuit structure
04/06/1999CA2150549C Fractional n frequency synthesis with residual error correction and method thereof
03/1999
03/31/1999EP0905879A1 Transmitter for generating a high frequency transmitter signal
03/31/1999EP0905878A2 Modulator for generating a RF signal
03/30/1999US5889443 Frequency synthesizing circuit using a phase-locked loop
03/25/1999WO1999014859A1 A post-filtered δσ for controlling a phase locked loop m odulator
03/25/1999WO1999014850A1 A compensated δσ controlled phase locked loop modulator
03/25/1999WO1999014849A1 Circuit for producing a modulated signal
03/18/1999WO1999013590A1 Rf transmitter
03/18/1999WO1999013568A1 Low noise gilbert multiplier cells and quadrature modulators, and related methods
03/18/1999CA2301734A1 Low noise gilbert multiplier cells and quadrature modulators, and related methods
03/17/1999CN1211355A Linear transmitter using predistortion
03/16/1999CA2107771C Multiple accumulator fractional n synthesis with series recombination
03/09/1999US5881376 Digital calibration of a transceiver
03/03/1999EP0899867A2 FM modulator
03/02/1999US5878335 Composite direct digital synthesizer
02/1999
02/24/1999CN1209223A Digital calibration of a transceiver
02/17/1999CN1208528A Transmitter
02/16/1999US5872807 Spread spectrum clock generator and associated method
02/16/1999US5872488 Dual input voltage controlled oscillator with compensated bang/bang frequency
02/11/1999WO1999007066A1 Frequency synthesizer systems and methods for three-point modulation with a dc response
02/11/1999WO1999007065A1 Systems and methods for automatic deviation setting and control in radio transmitters
02/11/1999CA2296309A1 Systems and methods for automatic deviation setting and control in radio transmitters
02/09/1999US5870005 Frequency modulated oscillator for transmitting short range signals
02/02/1999US5867771 Circuit arrangement comprising a tuner and a splitter-modulator
02/02/1999US5867524 Spread spectrum clock generator and associated method
02/02/1999US5867071 High power transmitter employing a high power QAM modulator
01/1999
01/19/1999US5861781 Single sideband double quadrature modulator
01/12/1999US5859883 Subscriber unit for wireless digital subscriber communication system
01/07/1999EP0889619A1 FSK modulator with a phase locked loop
01/07/1999EP0889595A1 High-frequency signal generator
01/05/1999CA2181050C Method, device, and radio for compensating for modulator frequency drift while allowing for data transmission
12/1998
12/23/1998EP0885510A1 Method and apparatus for routing a digitized rf signal to a plurality of paths
12/22/1998US5852389 For modulating high speed qam data onto a carrier signal
12/17/1998WO1998057420A1 Apparatus and method for controlling spectrum of a signal
12/16/1998CN1202068A Multi-tap radio frequency modulator
12/16/1998CN1202020A Frequency converter used in microwave system
12/15/1998CA2153373C Signal oscillator, fm modulation circuit using the same, and fm modulation method
12/15/1998CA2152114C Method and apparatus for generating transmitting wave
12/09/1998CN1041156C Method and apparatus for compensating dc. offset voltage
12/08/1998US5848167 Distributed pre-emphasis equalizer
12/08/1998US5847623 Low noise Gilbert Multiplier Cells and quadrature modulators
12/02/1998EP0881807A1 Transmitter
12/01/1998US5844449 Used in microwave frequency bands and millimeter wave bands
11/1998
11/26/1998WO1998028852A3 Continuous phase modulator, comprising a direct digital synthesizer followed by a phase locked loop
11/18/1998EP0878056A1 Linear transmitter using predistortion
11/17/1998US5838210 Method and apparatus for generating a modulated signal
11/10/1998US5834987 Frequency synthesizer systems and methods for three-point modulation with a DC response
11/10/1998US5834985 Digital continuous phase modulation for a DDS-driven phase locked loop
11/10/1998US5834979 Automatic frequency control apparatus for stabilization of voltage-controlled oscillator
11/03/1998US5831488 Digital phase modulator formed with a fixed-point digital signal processor
10/1998
10/28/1998EP0873588A1 Method and device for modulating the frequency of a high-frequency signal
10/21/1998EP0872951A1 Oscillator circuit and method of optimisation therefor
10/20/1998US5825258 Phase-locked loop circuit
10/20/1998US5825252 Synthesized oscillation circuit
10/15/1998WO1998045936A1 Frequency doubling of a quadrature-amplitude modulated signal using a frequency multiplier
10/13/1998US5822366 Transceiver and method for generating and processing complex I/Q-signals
10/08/1998DE19713967A1 Distance measurement device using FMCW radar
10/06/1998US5818883 Multi-channel digital transceiver and method
10/01/1998WO1998043364A1 A multi-carrier radio system and radio transceiver implementation
09/1998
09/30/1998EP0867066A1 Digital calibration of a transceiver
09/29/1998CA2033861C Phase locked loop with d.c. modulation
09/22/1998US5812605 Multi-channel digital transceiver and method
09/22/1998US5812302 High-speed frequency modulation signal source and high-speed variable optical wavelength filter
09/22/1998CA2033878C Phase locked loop that includes d.c. modulation
09/17/1998WO1998040966A1 System and method for high speed digital data casting concurrent with amplitude modulated broadcasts
09/10/1998DE19739979C1 Demodulation method for phase-modulated digital signal
09/09/1998EP0863640A2 Improved physical layer interface device
09/01/1998US5802462 FM-PM receivers with frequency deviation compression
09/01/1998US5802451 Non-linear compensation circuit for a power amplifier
09/01/1998US5801592 Amplitude stabilized oscillator circuit
08/1998
08/19/1998EP0859459A1 Phase-shift modulation of a direct antenna-driving VCO
08/18/1998CA2097042C Fm-pm receivers with increased sensitivity
08/11/1998US5793817 DC offset reduction in a transmitter
08/06/1998WO1998034339A1 Digital compensation for wideband modulation of a phase locked loop frequency synthesizer
08/04/1998US5790942 Frequency modulation radio transmission device
08/04/1998US5789991 FSK modulating and demodulating apparatus wherein each binary data is represented by same number of cycles of modulated signal
07/1998
07/29/1998EP0855792A1 Method and device relating to supervision and control of an oscillator signal
07/28/1998US5787362 AM removal from FM signal generated by IQ modulator
07/28/1998US5787126 Detector and receiving and transmitting apparatus
07/28/1998US5787125 Apparatus for deriving in-phase and quadrature-phase baseband signals from a communication signal
07/23/1998WO1998032220A1 Method of stabilizing the frequency of a yig-oscillator
07/23/1998DE19701306A1 Verfahren zur Frequenzstabilisierung eines YIG-Oszillators Method for frequency stabilization of a YIG oscillator
07/21/1998US5784402 FMOD transceivers including continuous and burst operated TDMA, FDMA, spread spectrum CDMA, WCDMA and CSMA
07/15/1998EP0697155B1 Wireless data transceiver
07/02/1998WO1998028852A2 Continuous phase modulator, comprising a direct digital synthesizer followed by a phase locked loop
07/02/1998CA2275589A1 Digital continuous phase modulation for a dds-driven phase locked loop
06/1998
06/25/1998DE19701666C1 Frequency modulated oscillator circuit
06/25/1998DE19652146A1 Low noise oscillator circuit with feedback amplifying element
06/23/1998US5771442 Dual mode transmitter
06/23/1998US5771263 Communication system control method and communication system using the method
06/23/1998US5770989 Nonradiative dielectric line apparatus and instrument for measuring characteristics of a circuit board
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