| Patents for H03C 3 - Angle modulation (3,926) |
|---|
| 01/30/2001 | US6181199 Power IQ modulation systems and methods |
| 01/30/2001 | US6181181 Phase shifter for a quadrature modulator and an image suppression mixer |
| 01/24/2001 | EP1071250A1 RF transmission device |
| 01/23/2001 | US6178316 Radio frequency modulation employing a periodic transformation system |
| 01/22/2001 | CA2314823A1 Radio emitter |
| 01/10/2001 | EP1066676A1 Demodulator circuits |
| 01/09/2001 | US6172579 Three point modulated phase locked loop frequency synthesis system and method |
| 01/03/2001 | CN1278970A A post-filtered and delta, and sigma, for controlling a phase locked loop modulator |
| 01/02/2001 | US6169463 Quadrature modulator with set-and-forget carrier leakage compensation |
| 12/28/2000 | WO2000055973A3 Direct digital frequency synthesis enabling spur elimination |
| 12/28/2000 | DE19929167A1 Modulator und Verfahren zur Phasen- oder Frequenzmodulation mit einer PLL-Schaltung Modulator and method for phase or frequency modulation with a PLL circuit |
| 12/28/2000 | DE10019457A1 Phasenschwankungs-Erzeugungsschaltung und Phasenschwankungs-Erzeugungsverfahren Phase jitter generation circuit and phase jitter generation method |
| 12/27/2000 | EP1063766A2 Modulator for phase and frequency modulation using a PLL circuit and method |
| 12/26/2000 | US6167247 Local oscillator leak cancellation circuit |
| 12/26/2000 | US6167099 Multi-channel digital transceiver and method |
| 12/26/2000 | US6167096 Transmitting circuit for use in code-division multiple access system and frequency-division multiple access system |
| 12/19/2000 | US6163232 Frequency/phase modulator using a digital synthesis circuit in a phase locked loop |
| 12/14/2000 | WO2000076058A1 Fm modulator using both a pll and a quadrature phase modulator |
| 12/13/2000 | CN1276928A Multi-carrrier transmitting apparatus and method |
| 12/12/2000 | US6161000 Transmit-receive system and transmission method, in particular for a mobile telephone |
| 12/12/2000 | US6160861 Method and apparatus for a frequency modulation phase locked loop |
| 12/06/2000 | EP1057252A1 Direct digital synthesis of precise, stable angle modulated rf signal |
| 12/05/2000 | US6157271 Rapid tuning, low distortion digital direct modulation phase locked loop and method therefor |
| 11/30/2000 | WO2000072438A1 Linearisation and modulation device |
| 11/28/2000 | US6154158 Digital-to-analog converter D.C. offset correction comparing converter input and output signals |
| 11/16/2000 | WO2000069085A1 Programmable digital intermediate frequency transceiver |
| 11/16/2000 | CA2371090A1 Programmable digital intermediate frequency transceiver |
| 11/14/2000 | US6147560 Method and device relating to supervision and control of an oscillator signal |
| 11/02/2000 | EP1048110A1 A POST-FILTERED $g(D)$g(S) FOR CONTROLLING A PHASE LOCKED LOOP M ODULATOR |
| 10/26/2000 | WO2000041371A3 Power i-q modulation systems and methods using predistortion circuit |
| 10/25/2000 | EP1046223A1 Quadrature modulator and demodulator |
| 10/24/2000 | US6137995 Circuit and method of generating a phase locked loop signal having an offset reference |
| 10/24/2000 | US6137826 Dual-mode modulation systems and methods including oversampling of narrow bandwidth signals |
| 10/17/2000 | US6133804 Transmitter with complex phase comparator |
| 10/12/2000 | WO2000060741A1 Method and apparatus for reducing oscillator noise by noise-feedforward |
| 10/11/2000 | EP1042871A1 Digital radio-frequency transceiver |
| 10/11/2000 | CN1269921A Low noise gilbert (GILBERT) multiplier cells and quarature modulators, and related method |
| 10/10/2000 | US6130919 Method and device for digital frequency modulation |
| 10/05/2000 | WO2000059175A1 Correction of nonlinearity of i/q modulator |
| 10/05/2000 | WO2000059171A1 Correction of dc-offset of i/q modulator |
| 09/28/2000 | WO2000057545A1 Quadrature modulator with carrier leakage compensation |
| 09/28/2000 | WO2000019641A9 Apparatus for low power radio communications |
| 09/27/2000 | EP1039628A1 Highly integrated radio frequency transmitter with image rejection, optionally auto-calibrated |
| 09/27/2000 | EP1038356A1 Sigma-delta modulator-controlled phase-locked-loop circuit and associated method |
| 09/26/2000 | US6125266 Dual band architectures for mobile stations having transmitter linearization feedback |
| 09/21/2000 | WO2000055973A2 Direct digital frequency synthesis enabling spur elimination |
| 09/19/2000 | US6122326 High precision, low phase noise synthesizer with vector modulator |
| 09/19/2000 | CA2124881C Voltage controlled oscillator apparatus |
| 09/12/2000 | US6118984 Dual conversion radio frequency transceiver |
| 09/06/2000 | EP1033818A1 Signal generating circuit, and transmitter, receiver and transmitting and receiving device using the circuit |
| 09/06/2000 | EP1032988A1 Apparatus for low power radio communications |
| 09/06/2000 | CN1265785A System and methods for automatic deviation setting and control in radio transmitters |
| 09/05/2000 | US6115594 Frequency converter used in a microwave system |
| 09/05/2000 | US6115586 Multiple loop radio frequency synthesizer |
| 08/23/2000 | CN1264260A Radio equipment including frequence synthesizer |
| 08/17/2000 | WO2000048318A1 Circuit for the frequency multiplication of an angle modulated signal using a pll and method |
| 08/16/2000 | EP1027769A1 Method and device in a telecommunication system |
| 08/10/2000 | WO2000046927A1 Three point modulated phase locked loop frequency synthesis system and method |
| 08/08/2000 | US6100827 Modulation systems and methods that compensate for DC offset introduced by the digital-to-analog converter and/or the low pass filter thereof |
| 07/27/2000 | WO2000044143A1 Correction of amplitude and phase imbalance in psk receivers |
| 07/26/2000 | CN1054949C Feedback loop closure in a linear transmitter |
| 07/25/2000 | US6094101 Direct digital frequency synthesis enabling spur elimination |
| 07/19/2000 | EP1020995A1 Phase-locked loop circuit and frequency modulation method using the same |
| 07/18/2000 | US6091941 Radio apparatus |
| 07/18/2000 | US6091303 Method and apparatus for reducing oscillator noise by noise-feedforward |
| 07/13/2000 | WO2000041371A2 Power i-q modulation systems and methods using predistortion circuit |
| 07/06/2000 | DE19857040A1 Verfahren zur Detekton und Korrektur von Nichtlinearitäten hochfrequenter, spannungsgesteuerter Oszillatoren Method for Detekton and correction of non-linearities of high frequency, voltage controlled oscillators |
| 06/29/2000 | WO2000038320A1 A receiver and a variable frequency signal generating circuit for the receiver |
| 06/29/2000 | WO2000038313A1 A transceiver |
| 06/28/2000 | EP1014560A1 Radio apparatus including a frequency synthesizer and method for phase and/or frequency modulation in a frequency synthesizer |
| 06/28/2000 | EP1012965A1 Circuit for producing a modulated signal |
| 06/28/2000 | EP1012963A1 Low noise gilbert multiplier cells and quadrature modulators, and related methods |
| 06/28/2000 | EP1012962A1 Multi-carrier transmitting apparatus and method |
| 06/28/2000 | EP0937332B1 Frequency modulator |
| 06/27/2000 | US6081698 Radio apparatus and offset compensating method |
| 06/27/2000 | US6081697 Multi-carrier radio system and radio transceiver implementation |
| 06/21/2000 | EP0873588B1 Method and device for modulating the frequency of a high-frequency signal |
| 06/21/2000 | CN1257623A Multi-carrier radio system and radio transceiver implementation |
| 06/20/2000 | US6078784 Multi-tap radio frequency modulator |
| 06/20/2000 | US6078629 Digital synthesizer |
| 06/15/2000 | WO2000035076A1 Device for correcting non-linearities of voltage-controlled oscillators in a fmcw radar system |
| 06/13/2000 | US6075413 Amplifier circuit and control signal generator |
| 06/08/2000 | WO2000033464A1 Improvements relating to phase lock loops |
| 06/08/2000 | DE19954255A1 Phase Lock Loop und diesbezügliches Verfahren Phase lock loop and method thereof |
| 06/07/2000 | CN1255782A Phase-locked loop and method thereof |
| 06/06/2000 | US6072374 FM modulation system using quadrature modulator |
| 06/02/2000 | WO2000031941A1 Method and apparatus for the determinaton of the predistortion parameters in a quadrature modulator, by measuring the output power |
| 05/23/2000 | US6067363 Audio A/D convertor using frequency modulation |
| 05/23/2000 | US6066997 Frequency multiplier with fundamental wave reflection |
| 05/17/2000 | EP1000462A1 Frequency synthesizer systems and methods for three-point modulation with a dc response |
| 05/17/2000 | EP1000461A1 Systems and methods for automatic deviation setting and control in radio transmitters |
| 05/10/2000 | EP0999645A1 Data converter |
| 05/10/2000 | CN1052353C Fractional-N frequency synthesis with residual error correction and its frequency synthetic method |
| 05/03/2000 | EP0998024A2 Modulator structure for a transmitter and a mobile station |
| 05/02/2000 | CA2191098C Multiple access up converter/modulator and method |
| 04/27/2000 | WO2000024120A1 Method and system for ensuring reception of a communications signal |
| 04/27/2000 | WO2000024116A1 System and method for frequency up-conversion |
| 04/20/2000 | DE19835232C1 Continuous frequency modulation arrangement |
| 04/19/2000 | EP0704117B1 Compensated digital frequency synthesizer |
| 04/18/2000 | US6052037 Modulation method and apparatus |