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Class Information
Number: 375/344
Name: Pulse or digital communications > Receivers > Automatic frequency control
Description: Subject matter where a receiver frequency response characteristic is set or adjusted in response to frequency changes in the input signal or charges in the receiver parameters.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4435822 |
Coherent spread spectrum receiving apparatus |
Mar. 6, 1984 |
| 4423518 |
Timing recovery circuit |
Dec. 27, 1983 |
| 4419759 |
Concurrent carrier and clock synchronization for data transmission system |
Dec. 6, 1983 |
| 4409562 |
Phase correction circuit employing bandpass filters |
Oct. 11, 1983 |
| 4355404 |
Carrier recovery network for QPSK modems employing synchronized oscillators |
Oct. 19, 1982 |
| 4352192 |
Timing signal synchronization device |
Sep. 28, 1982 |
| 4328587 |
Phase slip detector and systems employing the detector |
May. 4, 1982 |
| 4313139 |
Carrier recovery circuit for a facsimile system |
Jan. 26, 1982 |
| 4298986 |
Receiver for phase-shift modulated carrier signals |
Nov. 3, 1981 |
| 4293945 |
Multichannel correlation receiver for determining depolarization of signals along signal propagation paths |
Oct. 6, 1981 |
| 4291269 |
System and method for frequency discrimination |
Sep. 22, 1981 |
| 4275465 |
Clock rate recovery circuit |
Jun. 23, 1981 |
| 4253189 |
Circuit for recovering the carrier of an amplitude modulated synchronous digital signal |
Feb. 24, 1981 |
| 4249252 |
Timing frequency recovery |
Feb. 3, 1981 |
| 4236249 |
Circuit arrangement for correcting frequency errors during a transmission of data |
Nov. 25, 1980 |
| 4213006 |
Circuit arrangement for the coarse synchronization of carrier signals and pulse signals with data signals in a data receiver |
Jul. 15, 1980 |
| 4207528 |
Timing-phase control system for duobinary transmission |
Jun. 10, 1980 |
| 4203071 |
Pseudo-random-number-code-detection and tracking system |
May. 13, 1980 |
| 4186347 |
Radio frequency arraying method for receivers |
Jan. 29, 1980 |
| 4177427 |
Phase-normalized parallel tuned receiver channel system |
Dec. 4, 1979 |
| 4097807 |
Automatic equalizing method and system |
Jun. 27, 1978 |
| 4095047 |
Phase regulating circuit |
Jun. 13, 1978 |
| 4092606 |
Quadraphase demodulation |
May. 30, 1978 |
| 4091331 |
Arrangement for compensating carrier phase errors in a receiver for discrete data values |
May. 23, 1978 |
| 4039749 |
Spread spectrum demodulator |
Aug. 2, 1977 |
| 4035725 |
Automatic passband equalizer for data transmission systems |
Jul. 12, 1977 |
| 4023169 |
Automatic frequency control circuit for frequency agile radar |
May. 10, 1977 |
| 3974449 |
Joint decision feedback equalization and carrier recovery adaptation in data transmission systems |
Aug. 10, 1976 |
| 3947634 |
System for synchronizing local pseudo-noise sequence to a received baseband signal |
Mar. 30, 1976 |
| 3931575 |
Filter stabilized single oscillator transceivers |
Jan. 6, 1976 |
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