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Class Information
Number: 375/322
Name: Pulse or digital communications > Receivers > Angle modulation
Description: Subject matter where the angle of the sine wave carrier is varied in accordance with the pulse or digital information.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4771438 |
Method and apparatus for phase reference recovery in high speed fast turnaround modem |
Sep. 13, 1988 |
| 4675881 |
Arrangement for recovering a clock signal from an angle-modulated carrier signal having a modulation index m=0.5 |
Jun. 23, 1987 |
| 4647864 |
Variable-delay, sine-cosine non-coherent demodulator |
Mar. 3, 1987 |
| 4635279 |
Arrangement for coherently generating sinusoids of different frequencies, and angle modulation data receiver using the arrangement |
Jan. 6, 1987 |
| 4591798 |
FM signal demodulation circuit |
May. 27, 1986 |
| 4490829 |
Detection of angular modulated electromagnetic signals |
Dec. 25, 1984 |
| 4476435 |
Digital demodulation of frequency modulated signals |
Oct. 9, 1984 |
| 4472686 |
Circuit for reproducing and demodulating modulated digital signals |
Sep. 18, 1984 |
| 4435682 |
Frequency demodulator employing a circuit having a delay varying with the received frequency |
Mar. 6, 1984 |
| 4345211 |
Digital phaselock demodulator |
Aug. 17, 1982 |
| 4298983 |
Automatic equalization system in FM communication circuit |
Nov. 3, 1981 |
| 4286224 |
FM data demodulator including circuit for eliminating step distortion |
Aug. 25, 1981 |
| 4250456 |
Device for demodulating PSK-FM double modulated carrier signals |
Feb. 10, 1981 |
| 4100495 |
Adaptive method of and means for recovering digital signals |
Jul. 11, 1978 |
| 4090145 |
Digital quadrature demodulator |
May. 16, 1978 |
| 4047153 |
Statistical data detection method and apparatus |
Sep. 6, 1977 |
| 3931575 |
Filter stabilized single oscillator transceivers |
Jan. 6, 1976 |
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