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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 |
| 6133785 |
False carrier lock receiver and associated methods for detection |
Oct. 17, 2000 |
| 6133964 |
Digital demodulator and method therefor |
Oct. 17, 2000 |
| 6130921 |
Frequency shift modulation automatic frequency correction circuit and method |
Oct. 10, 2000 |
| 6130922 |
Demodulating digital video broadcast signals |
Oct. 10, 2000 |
| 6127884 |
Differentiate and multiply based timing recovery in a quadrature demodulator |
Oct. 3, 2000 |
| 6115431 |
Phase detecting method and phase tracking loop circuit for a digital vestigial sideband modulation communication device |
Sep. 5, 2000 |
| 6108387 |
AFC circuit for a frequency scanning receiver |
Aug. 22, 2000 |
| 6104767 |
Method and apparatus for estimating a frequency offset |
Aug. 15, 2000 |
| 6091786 |
Method and apparatus in a communication receiver for estimating symbol timing and carrier frequency |
Jul. 18, 2000 |
| 6081560 |
Production of a frequency control signal in an FSK receiver |
Jun. 27, 2000 |
| 6081563 |
AFC circuit of digital demodulation device |
Jun. 27, 2000 |
| 6078578 |
Communication apparatus |
Jun. 20, 2000 |
| 6075829 |
Digital broadcast receiver |
Jun. 13, 2000 |
| 6072841 |
Block phase estimator for the coherent detection of non-differentially phase modulated data bursts on rician fading channels |
Jun. 6, 2000 |
| 6072997 |
Frequency discriminator for a direct conversion receiver |
Jun. 6, 2000 |
| 6069925 |
Dual band, dual mode transceiver with adaptive second if switching device |
May. 30, 2000 |
| 6067315 |
Method and apparatus for coherently-averaged power estimation |
May. 23, 2000 |
| 6067332 |
Frequency searching method and digital audio broadcast receiver |
May. 23, 2000 |
| 6067329 |
VSB demodulator |
May. 23, 2000 |
| 6058147 |
Intelligent carrier acquisition method for satellite communications |
May. 2, 2000 |
| 6058150 |
Method and apparatus for combined timing recovery, frame synchronization and frequency offset correction in a receiver |
May. 2, 2000 |
| 6052418 |
Frequency error measuring apparatus and radio apparatus |
Apr. 18, 2000 |
| 6052419 |
Frequency adjusting method for use with digital receiver and frequency adjusting circuit thereof |
Apr. 18, 2000 |
| 6049708 |
Mobile communication apparatus for intermittently receiving a broadcasting signal at a corrected reception timing |
Apr. 11, 2000 |
| 6044119 |
Frequency control method and circuit employing both reference symbols and information symbols |
Mar. 28, 2000 |
| 6044118 |
Method for adjusting the frequency of an oscillator for a receiver circuit |
Mar. 28, 2000 |
| 6041085 |
Carrier regenerating circuit, multi-level quadrature amplitude demodulator, and method of detecting frequency deviation |
Mar. 21, 2000 |
| 6035186 |
Integrated receiver |
Mar. 7, 2000 |
| 6034564 |
Demodulator using quasi-synchronous detection to demodulate modulated quadrature input signals |
Mar. 7, 2000 |
| 6031883 |
Enhanced frequency agile radio |
Feb. 29, 2000 |
| 6028900 |
Digital broadcast receiver |
Feb. 22, 2000 |
| 6026128 |
Frequency- and phase regulator device for VSB receivers |
Feb. 15, 2000 |
| 6023491 |
Demodulation apparatus performing different frequency control functions using separately provided oscillators |
Feb. 8, 2000 |
| 6021110 |
OFDM timing and frequency recovery system |
Feb. 1, 2000 |
| 6021164 |
Digital radio communication system having reduced phase-locked loop, and its synchronization |
Feb. 1, 2000 |
| 6021165 |
Digital Broadcast receiver and method of tuning control |
Feb. 1, 2000 |
| 6011818 |
Automatic frequency control method |
Jan. 4, 2000 |
| 6005889 |
Pseudo-random noise detector for signals having a carrier frequency offset |
Dec. 21, 1999 |
| 5995569 |
Method for establishing synchronization and demodulator using the same |
Nov. 30, 1999 |
| 5995564 |
Apparatus for detecting when a dynamic signal is stable |
Nov. 30, 1999 |
| 5995563 |
System and method for fast channel switching in a satellite receiver |
Nov. 30, 1999 |
| 5991342 |
Frequency error detector |
Nov. 23, 1999 |
| 5991344 |
Mobile communication device and method for setting AFC initial value |
Nov. 23, 1999 |
| 5987073 |
Symbol timing recovery network for a carrierless amplitude phase (CAP) signal |
Nov. 16, 1999 |
| 5987074 |
Digital communication demodulator, digital communication demodulation method and digital demodulation circuit |
Nov. 16, 1999 |
| 5987078 |
Carrier regenerating circuit |
Nov. 16, 1999 |
| 5982824 |
Method and apparatus for automatic gain control |
Nov. 9, 1999 |
| 5982821 |
Frequency discriminator and method and receiver incorporating same |
Nov. 9, 1999 |
| 5982200 |
Costas loop carrier recovery circuit using square-law circuits |
Nov. 9, 1999 |
| 5982823 |
Direct frequency selection and down-conversion for digital receivers |
Nov. 9, 1999 |
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