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Class Information
Number: 329/342
Name: Demodulators > Frequency modulation demodulator > Input signal converted to and processed in pulse form (e.g., pulse counter or digital type demodulator) > Including discrete semiconductor device
Description: Subject matter containing an electrical device whose constituent portions are constructed from solid material having room temperature conductivity between that of a conductor and an insulator and which conductivity is typically modified through the addition of small amounts of dopant.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6121829 |
Frequency demodulator |
Sep. 19, 2000 |
| 6064255 |
Pulse counting FM demodulator |
May. 16, 2000 |
| 5990733 |
Delay line ramp demodulator |
Nov. 23, 1999 |
| 5903187 |
Monolithically integrable frequency demodulator device |
May. 11, 1999 |
| 5619538 |
Pulse shaping FM demodular with low noise where capacitor charge starts on input signal edge |
Apr. 8, 1997 |
| 5270666 |
Method and circuitry for demodulation of angle modulated signals by measuring cycle time |
Dec. 14, 1993 |
| 5148114 |
FM demodulator |
Sep. 15, 1992 |
| 4959620 |
Frequency demodulation circuit |
Sep. 25, 1990 |
| 4926133 |
FM demodulator having a frequency independent delay circuit |
May. 15, 1990 |
| 4800338 |
Pulse count type FM demodulator |
Jan. 24, 1989 |
| 4618967 |
Radio receiver |
Oct. 21, 1986 |
| 4539697 |
FM Stereo demodulating circuit |
Sep. 3, 1985 |
| 4350957 |
Pulse counter-type FM detector |
Sep. 21, 1982 |
| 4282448 |
Monostable multivibrator and FM detector circuit employing common emitter transistor amplifier with plural emitter resistors to avoid circuit operation from signal noise |
Aug. 4, 1981 |
| 4282490 |
Pulse count type FM demodulator circuit |
Aug. 4, 1981 |
| 4264867 |
Demodulator circuit for frequency-modulated signal |
Apr. 28, 1981 |
| 4236253 |
Monostable multivibrator for use in pulse count demodulator or the like |
Nov. 25, 1980 |
| 4180777 |
Tuning meter for use with a pulse count FM demodulation circuit |
Dec. 25, 1979 |
| 4024461 |
FM discriminator |
May. 17, 1977 |
| 4022970 |
Facsimile receiver with improved FM demodulator |
May. 10, 1977 |
| 4007426 |
F-M Demodulator circuit |
Feb. 8, 1977 |
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