| Patents for H03C 3 - Angle modulation (3,926) |
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| 11/25/1993 | WO1993023921A1 Method and apparatus for amplifying, modulating and demodulating |
| 11/25/1993 | CA2135304A1 Method and apparatus for amplifying modulating and demodulating |
| 11/24/1993 | EP0570979A1 Quadrature modulation circuit |
| 11/24/1993 | EP0419680B1 Frequency modulator |
| 11/11/1993 | WO1993022829A1 Pll circuit modulatable by a modulation signal having a direct current component |
| 10/26/1993 | US5257409 Frequency synthesizer with programming feedback |
| 10/26/1993 | CA1323671C Vector modulation signal generator |
| 10/06/1993 | EP0563440A1 VCO frequency modulator with low frequency deviation |
| 09/29/1993 | EP0546088A4 Frequency modulated synthesizer using low frequency offset mixed vco |
| 09/16/1993 | WO1993018578A1 Direct digital synthesizer for modulation |
| 08/25/1993 | EP0556353A1 Phase locked loop frequency synthesizer with dc data modulation capability |
| 08/25/1993 | CN1075579A Multiple accumulator fractional N synthesis with series recombination |
| 08/19/1993 | WO1993016523A1 Multiple accumulator fractional n synthesis with series recombination |
| 08/17/1993 | US5237291 Microwave frequency synthesizer having selectable oscillator sources and output power control |
| 07/28/1993 | EP0552642A1 Combined radio transmitter and receiver with PLL circuit |
| 07/21/1993 | EP0551573A2 Angle modulator, particularly for digital radio transmission |
| 07/21/1993 | CN1021688C Linear transmitter training method and apparatus |
| 07/20/1993 | CA1320604C Transmitter circuit for efficiently transmitting communication traffic via phase modulated carrier signals |
| 07/07/1993 | EP0550249A2 Modulation method and circuit arrangement |
| 07/07/1993 | EP0550128A2 Voltage controlled component |
| 06/30/1993 | EP0539403A4 Fractional-n synthesizer having modulation spur compensation |
| 06/29/1993 | US5224119 Vector FM modulator |
| 06/16/1993 | EP0546322A1 Quadrature modulator |
| 06/16/1993 | EP0546088A1 Frequency modulated synthesizer using low frequency offset mixed vco |
| 06/02/1993 | EP0544500A1 Frequency stabilizing circuit used for a pulse modulator for an image signal including a synchronous signal |
| 05/26/1993 | EP0543431A1 Self-oscillating mixer circuits, and FMCW radar |
| 05/26/1993 | CN1021002C Channel frequency generator for use with multi-frequency output generator |
| 05/25/1993 | CA1318369C Phase-locked loop type synthesizer having modulation function |
| 05/05/1993 | EP0539403A1 Fractional-n synthesizer having modulation spur compensation. |
| 05/04/1993 | US5207491 Fast-switching frequency synthesizer |
| 04/21/1993 | EP0537750A1 Quadrature modulation and demodulation circuit |
| 04/20/1993 | US5204746 Method and apparatus for frequency modulating a phase locked loop with video information |
| 04/14/1993 | EP0536660A1 Process for broadening the frequency response band of a voltage-controlled crystal oscillator and associated circuit |
| 04/07/1993 | EP0535883A1 Voltage controlled oscillator employing negative resistance |
| 04/07/1993 | EP0535800A2 General-purpose synthesizer for a radio apparatus |
| 04/07/1993 | EP0507919A4 Controlled slew rate amplifier |
| 04/06/1993 | US5200835 Demodulator for fm modulated video signals with pre-demodulation sideband suppression and post-demodulation sideband restoration |
| 03/31/1993 | EP0534498A2 Process and device for frequency to voltage conversion |
| 03/31/1993 | EP0216803B1 Digital zero-if selectivity section |
| 03/30/1993 | US5198784 Frequency modulated oscillator having controllable current sources |
| 03/24/1993 | EP0532702A1 Digital fm synthesizer for record circuitry. |
| 03/24/1993 | CN1070295A Modulating and demodulating technology |
| 03/18/1993 | WO1993005569A1 Phase locked loop frequency synthesizer with dc data modulation capability |
| 03/17/1993 | EP0531757A1 Method for controlling a frequency synthesizer provided with a modulation input |
| 03/17/1993 | EP0531451A1 Phase locked loop with d.c. modulation |
| 03/09/1993 | US5193224 Adaptive phase control for a power amplifier predistorter |
| 03/02/1993 | CA1314080C Method and apparatus for quadrature modulation |
| 02/17/1993 | EP0527660A1 Digital FM modulator |
| 02/16/1993 | US5187450 Voltage controlled oscillator suitable for complete implementation within a semiconductor integrated circuit |
| 02/04/1993 | DE4222105A1 Swept RF and microwave frequency synthesised source |
| 01/21/1993 | WO1993001657A1 Multi-loop synthesizer |
| 01/13/1993 | CN1068004A Device for modulator |
| 01/07/1993 | WO1993000738A1 Arrangement for a modulator |
| 01/07/1993 | DE4121027A1 Anordnung fuer einen video- und tonmodulator Arrangement for a video and tonmodulator |
| 12/29/1992 | US5175509 Frequency control circuit for swept frequency oscillator |
| 12/29/1992 | CA1312125C Wide band balanced output frequency modulator using a video signal as a modulation signal |
| 12/23/1992 | EP0519601A1 Microwave synthesisers |
| 12/23/1992 | EP0519170A1 Broadband phase shifter and vector modulator |
| 12/16/1992 | EP0518251A1 Voltage controlled oscillator |
| 12/15/1992 | US5172123 Frequency feedback linearizer |
| 12/08/1992 | US5170486 Apparatus for synthesizing a composite RF signal suitable for use as a test signal in testing adjacent channel rejection of radio receivers |
| 12/01/1992 | US5168250 Broadband phase shifter and vector modulator |
| 12/01/1992 | US5168248 Ferri-magnetic film frequency modulator |
| 11/24/1992 | US5166642 Multiple accumulator fractional N synthesis with series recombination |
| 11/17/1992 | CA1310379C Phase locked frequency synthesizer with single input gain compensated wideband modulation system |
| 11/17/1992 | CA1310378C Phase locked frequency synthesizer with single input wideband modulationsystem |
| 11/04/1992 | WO1992020144A1 Digital frequency synthesizer having afc and modulation applied to frequency divider |
| 10/27/1992 | US5159346 Voltage controlled oscillator |
| 10/27/1992 | US5159293 Voltage-controlled oscillator with wide modulation bandwidth |
| 10/26/1992 | CA2041279A1 Quadrature biorthogonal modulation |
| 10/25/1992 | WO1992020146A1 Adaptive phase control for a power amplifier predistorter |
| 10/21/1992 | EP0509124A1 Oscillator circuit |
| 10/20/1992 | US5157359 Carrier reset fm modulator and method of frequency modulating video signals |
| 10/20/1992 | US5157357 Monolithic microwave ic oscillator |
| 10/20/1992 | US5157344 Digital quadrature phase detector for angle modulated signals |
| 10/14/1992 | EP0508661A1 An FM modulator circuit having separate modulation and channel signal paths |
| 10/14/1992 | EP0507919A1 Controlled slew rate amplifier |
| 10/13/1992 | US5155455 Am/fm modulator in which am can be converted to fm by vector addition |
| 10/12/1992 | CA2065816A1 Fm modulator circuit having separate modulation and channel signal paths |
| 10/07/1992 | EP0480012A4 Multiaccumulator sigma-delta fractional-n synthesis |
| 09/29/1992 | US5151668 FM modulator for compensating modulation characteristics on each channel |
| 09/23/1992 | EP0505121A2 Frequency control circuitry |
| 09/23/1992 | EP0495921A4 Stabilizing circuit for feedback rf amplifier |
| 09/22/1992 | US5150082 Center frequency calibration for DC coupled frequency modulation in a phase-locked loop |
| 09/15/1992 | US5148127 Biphase shift keying modulation circuit having constant envelope characteristics |
| 09/08/1992 | US5146473 Subscriber unit for wireless digital subscriber communication system |
| 08/18/1992 | US5140287 Diode circuit flicker-noise reduction |
| 08/12/1992 | EP0498101A1 Monolithic microwave IC oscillator |
| 08/12/1992 | EP0497801A1 A phase locked loop for producing a reference carrier for a coherent detector. |
| 08/11/1992 | US5138286 Method and device for voltage frequency transformation |
| 08/04/1992 | US5136254 FM demodulator circuit whose demodulation output is decreased in distortion |
| 07/29/1992 | EP0495921A1 Stabilizing circuit for feedback rf amplifier |
| 07/21/1992 | US5133083 Adjacent channel selectivity signal generator system |
| 07/15/1992 | CN1062817A Controlled slew rate amplifier |
| 07/14/1992 | US5130676 Phase locked loop frequency synthesizer with DC data modulation capability |
| 07/14/1992 | US5130670 Phase-locking circuit for swept synthesized source preferably having stability enhancement circuit |
| 07/09/1992 | WO1992011692A1 A frequency modulator |
| 07/07/1992 | US5128633 Multi-loop synthesizer |
| 07/01/1992 | CN1017283B Cordic complex multiplier |
| 06/30/1992 | US5126699 Digitally compensated modulation system for frequency synthesizers |