| Patents for H03K 7 - Modulating pulses with a continuously-variable modulating signal (4,039) |
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| 08/02/1977 | US4039979 Reduction of aliasing distortion in sampled signals |
| 08/02/1977 | US4039868 Circuit for generating pulses with duration proportional to quotient of two input voltages |
| 07/12/1977 | US4035733 Pulse signal conditioning circuit |
| 06/28/1977 | US4032718 Four-wire integrable hybrid |
| 06/21/1977 | US4031532 Voltage to frequency converter |
| 05/03/1977 | US4021745 Pulse width modulated signal amplifier |
| 04/26/1977 | US4020366 Pulse train frequency control means |
| 04/19/1977 | US4019158 Asymmetrical transistorized multivibrator with inductive timing circuits |
| 03/29/1977 | US4015213 Pulse width modulated signal amplifier |
| 03/01/1977 | US4010465 Channel encoding for distance measurement equipment |
| 01/18/1977 | US4004246 Pulse width modulated signal amplifier |
| 01/04/1977 | US4001728 Digital method of pulse width modulation |
| 12/14/1976 | USRE29079 Multiplier, divider and wattmeter using a switching circuit and a pulse-width and frequency modulator |
| 12/07/1976 | US3996531 Oscillator circuit whose frequency is voltage controllable which contains a comparator |
| 11/30/1976 | US3995178 Pulse-width and frequency modulator circuit |
| 11/02/1976 | US3989998 Wide range pulse generator |
| 11/02/1976 | US3989961 Bidirectional reset integrator converter |
| 10/12/1976 | US3986055 Voltage-frequency and frequency-voltage reciprocal converter |
| 09/28/1976 | US3983419 Analog waveform transducing circuit |
| 09/14/1976 | US3980970 Voltage controlled oscillator circuit |
| 08/31/1976 | US3978424 Two-phase pulse generator having voltage controlled pulse width |
| 08/03/1976 | US3973191 Inductive displacement sensor apparatus |
| 08/03/1976 | US3972259 Production of pulse width modulation tonal effects in a computor organ |
| 07/20/1976 | US3970943 Analog-to-pulse integrating converter |
| 07/06/1976 | US3968447 Method of amplitude-frequency conversion and a converter which operates in accordance with said method |
| 06/15/1976 | US3963944 Device for converting an analogous signal into a pulse-length-modulated pulse series |
| 05/25/1976 | US3959743 Linear voltage-controlled saw-tooth oscillator |
| 05/11/1976 | US3956713 Astable multivibrator having adjustable pulse width at constant frequency |
| 05/04/1976 | US3955191 Analog-to-digital converter |
| 03/30/1976 | US3947736 Waveform synthesis using switching circuits |
| 03/23/1976 | US3946330 Voltage controlled oscillator circuit |
| 03/16/1976 | US3944949 Frequency modulator |
| 03/16/1976 | US3944852 Electrical switching device and modulator using same |
| 03/02/1976 | US3942110 Analog to pulse rate converter |
| 02/17/1976 | US3939380 Class D amplifier |
| 02/17/1976 | US3939303 Digital video modulation apparatus |
| 02/17/1976 | US3938394 Combination balance analyzer and vibration spectrum analyzer |
| 02/03/1976 | US3936610 Dual delay line storage sound signal processor |
| 01/06/1976 | US3931588 Voltage controlled oscillator utilizing field effect transistors |