| Patents for H03K 9 - Demodulating pulses which have been modulated with a continuously-variable signal (1,929) |
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| 04/08/1980 | US4197508 Period-to-voltage converting device |
| 02/20/1980 | EP0008160A1 Programmable digital tone detector |
| 02/12/1980 | US4188586 Demodulator circuit for chopper amplifier |
| 01/08/1980 | US4182994 Phase locked loop tuning system including stabilized time interval control circuit |
| 10/23/1979 | CA1065024A1 Reduction of aliasing distortion in sampled signals |
| 09/11/1979 | US4167706 Two-wire frequency to DC converter |
| 08/07/1979 | US4163951 Frequency discriminator producing at least one of two pulse sequences representing in average the result of frequency discrimination |
| 06/26/1979 | US4159448 Communication systems |
| 04/24/1979 | US4151565 Discrimination during reading of data prerecorded in different codes |
| 02/13/1979 | CA1048650A1 Pulse duration to current converter |
| 09/26/1978 | US4117355 Temperature independent trigger pulse analysis circuit |
| 08/29/1978 | CA1037570A1 Demodulating circuitry for pulse rate modulation data reproduction |
| 08/22/1978 | US4109210 Method of generating a variable train of pulses |
| 04/18/1978 | US4085373 Frequency-to-voltage transducer for speed governor systems or the like |
| 11/22/1977 | US4059806 Pulse position demodulator circuit |
| 10/11/1977 | US4053797 Receive amplifier for pam signals |
| 08/02/1977 | US4039979 Reduction of aliasing distortion in sampled signals |
| 07/26/1977 | US4038686 Defect detection and compensation |
| 06/14/1977 | US4030016 Precision active rectifier circuit |
| 01/18/1977 | US4004246 Pulse width modulated signal amplifier |
| 11/16/1976 | US3992660 Frequency-current conversion circuit |
| 11/09/1976 | US3991323 Pulse duration to current converter |
| 10/12/1976 | US3986055 Voltage-frequency and frequency-voltage reciprocal converter |
| 07/06/1976 | US3968449 Rate compensating monostable multivibrator |
| 06/01/1976 | US3961277 Frequency demodulator, especially for data-transmission system |
| 05/11/1976 | US3956685 Frequency responsive circuit |
| 03/16/1976 | US3944935 Apparatus for generating a d.c. signal proportional to an input frequency |
| 01/13/1976 | US3932767 Filter-discriminator circuit |
| 01/06/1976 | US3931580 Digital line receiver circuit |