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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 |
| 6341123 |
Digital audio broadcasting receiver |
Jan. 22, 2002 |
| 6335953 |
Enhanced frequency agile radio |
Jan. 1, 2002 |
| 6332007 |
Automatic frequency control in FSK receiver using voltage window deviation |
Dec. 18, 2001 |
| 6330293 |
Method for receiving multicarrier digital signals |
Dec. 11, 2001 |
| 6324228 |
Method and apparatus for robust frequency tracking in strong channel interference using carrier signal relative strength and frequency error |
Nov. 27, 2001 |
| 6320627 |
Demodulating digital video broadcast signals |
Nov. 20, 2001 |
| 6320917 |
Demodulating digital video broadcast signals |
Nov. 20, 2001 |
| 6317473 |
Demodulating digital video broadcast signals |
Nov. 13, 2001 |
| 6314145 |
Tracking carrier timing |
Nov. 6, 2001 |
| 6314083 |
Frequency control device and method for frequency synchronization with multiplex signal by OFDM, receiving device, and communication device |
Nov. 6, 2001 |
| 6307896 |
Instrumentation receiver for digitally modulated radio frequency signals |
Oct. 23, 2001 |
| 6307879 |
Digital radio communication apparatus and method of controlling the same |
Oct. 23, 2001 |
| 6304620 |
Sign-cross product automatic frequency control loop |
Oct. 16, 2001 |
| 6289061 |
Wideband frequency tracking system and method |
Sep. 11, 2001 |
| 6282249 |
Satellite receiver |
Aug. 28, 2001 |
| 6278746 |
Timing recovery loop circuit in a receiver of a modem |
Aug. 21, 2001 |
| 6278725 |
Automatic frequency control loop multipath combiner for a rake receiver |
Aug. 21, 2001 |
| 6278403 |
Autonomous hardwired tracking loop coprocessor for GPS and WAAS receiver |
Aug. 21, 2001 |
| 6275551 |
Apparatus for receiving digital information signals |
Aug. 14, 2001 |
| 6275542 |
Direct conversion receiver including mixer down-converting incoming signal, and demodulator operating on downconverted signal |
Aug. 14, 2001 |
| 6259750 |
Digital phase reversal detector |
Jul. 10, 2001 |
| 6249554 |
Power based digital automatic gain control circuit |
Jun. 19, 2001 |
| 6243428 |
Method and apparatus for band-adaptive demodulation |
Jun. 5, 2001 |
| 6240147 |
Auto frequency control apparatus |
May. 29, 2001 |
| 6240146 |
Demodulating digital video broadcast signals |
May. 29, 2001 |
| 6233293 |
Current-controlled carrier tracking filter for improved spurious signal suppression |
May. 15, 2001 |
| 6233292 |
Digital communication device |
May. 15, 2001 |
| 6226335 |
Methods and apparatus for automatic frequency control in wireless receivers |
May. 1, 2001 |
| 6226505 |
Automatic frequency correction apparatus and method for radio calling system |
May. 1, 2001 |
| 6222874 |
Frequency acquisition method for direct sequence spread spectrum systems |
Apr. 24, 2001 |
| 6215830 |
Carrier control loop for a receiver of digitally transmitted signals |
Apr. 10, 2001 |
| 6208694 |
Reduced power supervisory message transmission in a wireless alarm system |
Mar. 27, 2001 |
| 6208842 |
Method and apparatus for estimating a channel parameter |
Mar. 27, 2001 |
| 6205183 |
Methods of suppressing reference oscillator harmonic interference and related receivers |
Mar. 20, 2001 |
| 6205188 |
Demodulating digital video broadcast signals |
Mar. 20, 2001 |
| 6191649 |
Quadrature demodulator and method for quadrature demodulation |
Feb. 20, 2001 |
| 6192089 |
Electronic circuit and method for automatic frequency control |
Feb. 20, 2001 |
| 6178316 |
Radio frequency modulation employing a periodic transformation system |
Jan. 23, 2001 |
| 6175280 |
Method and apparatus for controlling and stabilizing oscillators |
Jan. 16, 2001 |
| 6173164 |
Method and apparatus for wide range automatic frequency control |
Jan. 9, 2001 |
| 6173018 |
Multi level comparator for demodulator |
Jan. 9, 2001 |
| 6167098 |
Method and apparatus for digital interference rejection |
Dec. 26, 2000 |
| 6151368 |
Phase-noise compensated digital communication receiver and method therefor |
Nov. 21, 2000 |
| 6151371 |
Automatic frequency control circuit |
Nov. 21, 2000 |
| 6148187 |
Automatic frequency control method and circuit |
Nov. 14, 2000 |
| 6148037 |
Sampling timing phase error detector for VSB modulation signal |
Nov. 14, 2000 |
| 6148045 |
Digital broadcast receiver |
Nov. 14, 2000 |
| 6137997 |
Circuit for receiving and transmitting signals and method |
Oct. 24, 2000 |
| 6137846 |
AFC circuit for a frequency scanning FSK receiver |
Oct. 24, 2000 |
| 6137847 |
Demodulating digital video broadcast signals |
Oct. 24, 2000 |
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