| Patents for H03C 3 - Angle modulation (3,926) |
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| 04/12/2000 | CN1250338A Method and apparatus for radio communication |
| 04/11/2000 | US6049257 Method and arrangement for frequency modulation of a high-frequency signal |
| 04/06/2000 | WO2000019641A1 Apparatus for low power radio communications |
| 04/04/2000 | US6047029 Post-filtered delta sigma for controlling a phase locked loop modulator |
| 04/04/2000 | US6046650 Oscillator circuit having optimized frequency modulation circuit |
| 04/04/2000 | US6046646 Modulation of a phase locked loop for spreading the spectrum of an output clock signal |
| 04/04/2000 | US6046643 Radio-frequency signal generator |
| 03/30/2000 | WO2000018002A1 Multi-carrier transmitting apparatus and method |
| 03/28/2000 | US6044124 Delta sigma PLL with low jitter |
| 03/22/2000 | CN1248099A Local oscillator leak cancel circuit |
| 03/16/2000 | WO2000014867A1 Device for generating an amplitude-modulated signal |
| 03/09/2000 | WO2000011925A2 Circuit for frequency synthesis and modulation and radio-telephone station |
| 03/08/2000 | CN1246992A Transmitter comprising VCO |
| 03/01/2000 | EP0982849A1 Predistorter |
| 02/29/2000 | US6032028 Radio transmitter apparatus and method |
| 02/23/2000 | CN1245596A Digital continuous phase modulation for DDS-driven phase locked loop |
| 02/22/2000 | US6028493 Elimination of bandpass filter after quadrature modulator in modulation synthesizer circuit |
| 02/17/2000 | WO2000007767A1 Machine tool and method of communication |
| 02/02/2000 | EP0977351A1 Method and apparatus for radio communication |
| 02/02/2000 | CN1243619A Compensation of delay in linearization loop of power amplifier |
| 01/27/2000 | WO2000004634A1 Method and apparatus for compensating for distortion in iq modulators |
| 01/25/2000 | US6018275 Phase locked loop with down-conversion in feedback path |
| 01/19/2000 | EP0973254A1 Local oscillator leak reduction circuit |
| 01/19/2000 | EP0972345A1 An audio a/d converter using frequency modulation |
| 01/18/2000 | US6016422 Method of and apparatus for generating radio frequency quadrature LO signals for direct conversion transceivers |
| 01/18/2000 | US6016169 Electronically programmable frequency modulation circuits and related methods |
| 01/13/2000 | WO2000002028A1 Method of fabricating silicon capacitive sensor |
| 01/13/2000 | WO2000002014A1 Dual output capacitance interface circuit |
| 01/11/2000 | US6014243 FM modulators |
| 01/06/2000 | WO2000001073A1 Method and apparatus for d.c. offset correction in digital-to-analog converters |
| 01/06/2000 | CA2334999A1 Method and apparatus for d.c. offset correction in digital-to-analog converters |
| 01/05/2000 | EP0968570A1 A multi-carrier radio system and radio transceiver implementation |
| 01/04/2000 | US6011815 Compensated ΔΣ controlled phase locked loop modulator |
| 12/29/1999 | CN1239851A Signal sending circuit |
| 12/29/1999 | CN1047896C Power amplifier having nested amplitude modulation controller and phase modulation controller |
| 12/28/1999 | US6008704 Fractional frequency synthesizer with modulation linearizer |
| 12/28/1999 | US6008703 Digital compensation for wideband modulation of a phase locked loop frequency synthesizer |
| 12/15/1999 | EP0964523A1 High frequency upconverter |
| 12/14/1999 | US6002298 Reconstituted frequency modulation with feedforward demodulator |
| 12/11/1999 | CA2272077A1 Receiving broadcast channel and broadcast process, especially for a mobile telephone |
| 12/01/1999 | EP0961412A1 Frequency synthesiser |
| 11/30/1999 | US5994972 Emitter-coupled multivibrator having frequency proportional to control voltage |
| 11/23/1999 | US5991605 Method and circuit for creating a modulated signal in a transceiver |
| 11/23/1999 | US5991334 Technique for simultaneous communications of analog frequency-modulated and digitally modulated signals using postcanceling scheme |
| 11/16/1999 | US5986512 Σ-Δ modulator-controlled phase-locked-loop circuit |
| 11/09/1999 | US5983077 Systems and methods for automatic deviation setting and control in radio transmitters |
| 11/03/1999 | EP0953232A1 Compensation of delay in linearization loop of power amplifier |
| 11/02/1999 | US5978661 Transmitter circuit and method of operation |
| 10/28/1999 | WO1999043080A9 Direct digital synthesis of precise, stable angle modulated rf signal |
| 10/26/1999 | US5973820 FM modulation device |
| 10/26/1999 | US5973576 Mixer for mixing carrier signals and data signals |
| 10/21/1999 | WO1999053610A1 Fm modulator |
| 10/21/1999 | WO1999053608A1 Voltage controlled oscillator |
| 10/20/1999 | EP0951143A2 Technique for effectively rendering power amplification and control in wireless communications |
| 10/18/1999 | CA2265143A1 Technique for effectively rendering power amplification and control in wireless communications |
| 10/12/1999 | US5966055 Phase-shift modulation of a direct antenna-driving VCO |
| 10/12/1999 | CA2064327C Broadband phase shifter and vector modulator |
| 10/06/1999 | EP0948138A1 Frequency synthesiser |
| 09/30/1999 | WO1999049567A1 Demodulator circuits |
| 09/29/1999 | EP0944960A2 Digital continuous phase modulation for a dds-driven phase locked loop |
| 09/14/1999 | US5953379 For a communication device |
| 09/14/1999 | US5952895 Direct digital synthesis of precise, stable angle modulated RF signal |
| 09/01/1999 | CN1227680A A audio A/D converter using frequency modulation |
| 08/31/1999 | US5946359 Parameter measuring apparatus for digital quadrature modulation signals |
| 08/26/1999 | WO1999043080A1 Direct digital synthesis of precise, stable angle modulated rf signal |
| 08/25/1999 | EP0937332A1 Frequency modulator |
| 08/17/1999 | US5940457 Millimeter-wave (MMW) synthesizer with FSK modulation transmitter |
| 08/03/1999 | US5933767 Apparatus and method for tuning the gain of a transmitter utilizing cartesian feedback |
| 08/03/1999 | US5933448 Automatic tuning of a radio transceiver |
| 08/03/1999 | CA2151943C Method and apparatus for integrating a plurality of input signals |
| 07/27/1999 | US5930687 Apparatus and method for generating an AM-compatible digital broadcast waveform |
| 07/27/1999 | US5930301 Up-conversion mechanism employing side lobe-selective pre-distortion filter and frequency replica-selecting bandpass filter respectively installed upstream and downstream of digital-to-analog converter |
| 07/22/1999 | WO1999030424A3 Transmitter comprising a vco |
| 07/20/1999 | US5926072 Frequency modulation circuit |
| 07/15/1999 | WO1999035736A1 Quadrature modulator and demodulator |
| 07/15/1999 | CA2316969A1 Quadrature modulator and demodulator |
| 07/13/1999 | US5924024 Method and circuit for achieving frequency conversion |
| 07/13/1999 | CA2025608C Frequency modulation circuit using vco |
| 07/13/1999 | CA2021335C Frequency modulator |
| 07/07/1999 | EP0928072A2 Transmitter linearization feedback |
| 07/06/1999 | USH1797 Linear frequency modulation apparatus and technique |
| 07/06/1999 | US5920556 Frequency modulation using a phase-locked loop |
| 07/06/1999 | US5920245 Nonradiative dielectric line apparatus including a specifically oriented circuit board |
| 06/24/1999 | WO1999031807A1 Σδ modulator-controlled phase-locked-loop circuit and associated method |
| 06/24/1999 | WO1999019990A3 Compensation of delay in linearization loop of power amplifier |
| 06/22/1999 | US5914620 Frequency doubling of a quadrature-amplitude modulated signal using a frequency multiplier |
| 06/17/1999 | WO1999030424A2 Transmitter comprising a vco |
| 06/15/1999 | US5912927 Multi-channel transmitter having an adaptive antenna array |
| 06/15/1999 | US5912926 Method of and apparatus for controlling modulation of digital signals in frequency modulated transmissions |
| 06/10/1999 | WO1999029074A1 Circuit for generating a modulated signal |
| 06/10/1999 | DE19852509A1 Modulation circuit for data signal transmission with Nyquist characteristic |
| 06/09/1999 | CN1043596C Method and apparatus for integrating a plurality of input signals |
| 05/27/1999 | WO1999026361A1 Modulation systems and methods including oversampling of narrow bandwidth signals and dc offset compensation |
| 05/27/1999 | WO1999026349A1 Signal generating circuit, and transmitter, receiver and transmitting and receiving device using the circuit |
| 05/27/1999 | CA2310220A1 Modulation systems and methods including oversampling of narrow bandwidth signals and dc offset compensation |
| 05/18/1999 | US5905414 VCO having control voltage and modulation signal applied to varactor |
| 05/18/1999 | US5905413 Angular modulator with a phase variation divided and integrated |
| 05/18/1999 | US5905388 Frequency synthesizer |
| 05/14/1999 | WO1999023756A1 Method and device in a telecommunication system |
| 05/11/1999 | US5903823 Radio apparatus with distortion compensating function |