Patents for H03C 3 - Angle modulation (3,926) |
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04/09/1996 | US5506547 Frequency modulator having LC oscillator with switchable frequencies |
04/09/1996 | US5506546 Method and apparatus for generating transmitting wave |
04/09/1996 | US5506545 Electronic apparatus having low radio frequency interference from controlled excursion noise-modulated system clock signal |
04/03/1996 | EP0704117A1 Compensated digital frequency synthesizer |
04/03/1996 | CN1119800A Frequency modulation circuit |
04/02/1996 | US5504465 Microwave modulator having adjustable couplers |
04/02/1996 | US5504464 Frequency modulating system including clamp and transconductance amplifier |
04/02/1996 | US5504463 Frequency modulating system including VCD made of transconductance amplifiers |
03/26/1996 | US5502420 Cascode VCO frequency modulator |
03/26/1996 | CA2068420C Controlled slew rate amplifier |
03/05/1996 | US5497509 FM-PM receivers with increased sensitivity |
03/05/1996 | US5497399 Digital FM modulating apparatus |
03/05/1996 | CA2056021C Digital quadrature phase detection circuit |
02/27/1996 | US5495208 Wide band tunable and modulatable reference oscillator |
02/27/1996 | US5495206 Fractional N frequency synthesis with residual error correction and method thereof |
02/21/1996 | EP0697155A1 Wireless data transceiver |
02/20/1996 | US5493583 Wireless data transceiver |
02/20/1996 | US5493257 Modulator with biasing circuit to minimize output distortion |
02/13/1996 | US5491458 Apparatus for spreading the spectrum of a signal and method therefor |
02/13/1996 | US5491457 F-modulation amplification |
02/07/1996 | CN1116469A Method and apparatus for integrating a plurality of input signals |
02/07/1996 | CN1116375A Quadrature modulator with adaptive suppression of carrier leakage |
02/07/1996 | CN1030954C Digital FM synthesizer for record circuitry |
01/31/1996 | EP0695067A2 Modem with local oscillator phase correction |
01/31/1996 | CN2218992Y Phase-locked loop module of frequency modulation sound accompaniment |
01/31/1996 | CN1116017A Fractional-N frequency synthesis with residual error correction |
01/30/1996 | US5488627 Spread spectrum clock generator and associated method |
01/23/1996 | US5487183 Method and apparatus for a data transmitter |
01/17/1996 | EP0692867A1 FM modulation circuit and method |
01/16/1996 | US5485129 Method and apparatus for digital modulation using pulse deletion |
01/16/1996 | CA2105375C Adaptive phase control for a power amplifier predistorter |
01/11/1996 | DE4423946A1 Circuit generating FM or PM output signals from input signals |
01/09/1996 | US5483203 Frequency synthesizer having modulation deviation correction via presteering stimulus |
01/02/1996 | US5481231 Lumped element four port coupler |
01/02/1996 | US5481230 Phase modulator having individually placed edges |
12/27/1995 | EP0689323A2 Phase modulator with gain control |
12/27/1995 | EP0689322A1 Tunable BPSK modulator |
12/27/1995 | EP0688446A1 Radio frequency telecommunications transceiver |
12/19/1995 | US5477199 Digital quadrature amplitude and vestigial sideband modulation decoding method and apparatus |
12/14/1995 | WO1995034126A1 Self-adjusting modulator |
12/14/1995 | CA2168887A1 Self-adjusting modulator |
12/12/1995 | CA2069513C Linear transmitter training method and apparatus |
12/05/1995 | US5473280 Modulation/demodulation method and system for realizing quadrature modulation/demodulation technique used in digital mobile radio system with complex signal processing |
11/29/1995 | EP0684696A2 Frequency modulator with a trimming circuit |
11/28/1995 | US5471187 Data signal comparation with self-adjusting threshold |
11/22/1995 | CN1112312A Method and circuit arrangement for compensating the dc offset voltage of a d/a converter |
11/21/1995 | US5469126 I/Q-modulator and I/Q-demodulator |
11/21/1995 | US5469119 Linear voltage-controlled oscillator using fixed capacitors in lieu of varactors |
11/21/1995 | US5469105 Transmitter and power amplifier therefor |
11/21/1995 | CA2048645C Multiaccumulator sigma-delta fractional-n synthesis |
11/14/1995 | US5467373 Digital frequency and phase modulator for radio transmission |
10/31/1995 | US5463356 FM band multiple signal modulator |
10/24/1995 | US5461348 PLL circuit modulatable by a modulation signal having a direct current component |
10/12/1995 | WO1995027339A1 Method and apparatus for controlling a data transmitter |
10/12/1995 | WO1995027330A1 Synchronous detector and methods for synchronous detection |
10/12/1995 | WO1995027329A1 A tuning circuit |
10/12/1995 | CA2186853A1 Synchronous detector and methods for synchronous detection |
10/11/1995 | EP0676860A2 Frequency modulation circuit |
10/05/1995 | DE4410721A1 Modulated oscillator frequency generating circuit |
10/03/1995 | US5455543 Low power consumption binary phase shift keyed (BPSK) modulator using absorptive electronic switching techniques |
09/26/1995 | US5453720 Digital adjustable phase modulator and method |
09/26/1995 | US5453714 Binary FM demodulator with self-adjusting resonant operating frequency according to demodulated binary output signal duty cycle |
09/21/1995 | WO1995023458A3 Method and apparatus for automatic modulation calibration in a radio transmitter |
09/20/1995 | EP0539403B1 Fractional-n synthesizer having modulation spur compensation |
09/19/1995 | US5451913 Compact MMIC tunable biphase modulator and method |
09/12/1995 | US5450043 Quadrature modulator with distortion compensation |
09/08/1995 | WO1995024074A1 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions |
09/08/1995 | CA2184811A1 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions |
09/05/1995 | US5448203 Negative-feedback amplifier and feedback controlling method thereof |
08/31/1995 | WO1995023458A2 Method and apparatus for automatic modulation calibration in a radio transmitter |
08/31/1995 | WO1995023453A1 Power amplifier having nested amplitude modulation controller and phase modulation controller |
08/30/1995 | EP0630535B1 Pll circuit modulatable by a modulation signal having a direct current component |
08/29/1995 | US5446422 Dual mode FM and DQPSK modulator |
08/23/1995 | EP0403492B1 Bandswitching a two-way radio having a pll |
08/22/1995 | US5444737 Wireless data transceiver |
08/17/1995 | WO1995022196A1 Continuous phase modulation device using a frequency synthesizer with a phase-locked loop |
08/15/1995 | US5442327 MMIC tunable biphase modulator |
08/01/1995 | US5438301 Modem having a phase corrector and a voltage controlled oscillator implemented using a multi-stage ring oscillator |
07/25/1995 | US5436599 Method and apparatus for digital modulation using pulse addition |
07/19/1995 | EP0497801B1 A phase locked loop for producing a reference carrier for a coherent detector |
07/18/1995 | US5434887 Quadrature modulation circuit for use in a radio transmitter |
07/05/1995 | EP0661801A1 Quadrature modulator with adaptive suppression of carrier leakage |
07/04/1995 | US5430763 Frequency stabilizing circuit used for a pulse modulator for an image signal including a synchronous signal |
07/04/1995 | US5430416 Power amplifier having nested amplitude modulation controller and phase modulation controller |
06/22/1995 | WO1995017039A1 Narrow band, arbitrary hf modulation and noise generator |
06/20/1995 | CA2125294C Differential modulator using concurrent pulse addition and subtraction |
06/15/1995 | WO1995016304A1 Phase/frequency modulator |
06/13/1995 | US5424688 Frequency synthesizer apparatus incorporating phase modulation tracking means |
06/13/1995 | CA2080013C Phase locked loop with d.c. modulation |
06/06/1995 | US5423075 Combined radio transmission and reception apparatus with a PLL circuit |
06/06/1995 | CA1335826C Angle modulator |
05/31/1995 | EP0655841A1 DC voltage offset compensation |
05/31/1995 | EP0655829A1 Spread spectrum clock generator and associated method |
05/30/1995 | US5420536 Linearized power amplifier |
05/18/1995 | WO1995013664A1 Method and apparatus for integrating a plurality of input signals |
05/18/1995 | WO1995013651A1 Phase-locked loop frequency modulation circuit for input modulation signals having low-frequency content |
05/18/1995 | CA2176365A1 Phase-locked loop frequency modulation circuit for input modulation signals having low-frequency content |
05/16/1995 | CA2038425C Carrier reset fm modulator and method of frequency modulating video signals |
05/10/1995 | EP0591260B1 Arrangement for a modulator |
05/10/1995 | EP0400027B1 Method and apparatus for quadrature modulation |