Patents for H03C 3 - Angle modulation (3,926) |
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05/03/1977 | US4021742 Phase compressor for phase modulated signal |
04/19/1977 | US4019185 Phase modulation apparatus |
02/22/1977 | US4009455 Phase locked loop angle modulation system with large modulation index |
02/01/1977 | US4006430 Circuit arrangement for converting a bridge unbalance into a frequency variation |
02/01/1977 | US4006429 Homodyne automatic frequency control circuit |
01/11/1977 | US4003004 Frequency modulated oscillator |
12/14/1976 | US3997915 Frequency modulating and demodulating method and apparatus |
12/07/1976 | US3996532 Phase modulating with odd and even finite power series of a modulating signal |
11/30/1976 | US3995233 Temperature compensated variable frequency crystal oscillator |
11/09/1976 | US3991389 Digital frequency shift key modulator |
10/12/1976 | US3986145 Variable reactance circuit including differentially-connected transistor device providing a variable reactance input impedance |
10/05/1976 | US3984863 Methods and devices for stabilizing the rest frequency of frequency modulated oscillators |
09/21/1976 | US3982211 Linearized varactor frequency modulated semi-conductor diode oscillator |
09/07/1976 | US3979697 Frequency modulated saw oscillator |
06/22/1976 | US3965438 Frequency locking system for a voltage controlled sweep frequency oscillator |
06/01/1976 | US3961286 Reflection type phase modulator having reduced temperature sensitivity and reduced distortion |
06/01/1976 | US3961285 Voltage controlled oscillator driver |
05/18/1976 | US3958190 Low harmonic crystal oscillator |
04/13/1976 | US3950713 Acoustic wave devices |
04/06/1976 | US3949324 Surface wave device angle modulator |
03/23/1976 | US3946337 Phase modulator for phase shift key communications systems |
03/23/1976 | US3946330 Voltage controlled oscillator circuit |
03/09/1976 | US3943446 Power and modulation control system |
03/02/1976 | US3942135 Concatenated surface wave delay line correlator |
02/03/1976 | US3936765 Surface acoustic wave oscillators |
01/06/1976 | US3931597 Apparatus and method for phase-encoded surface wave devices |