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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 |
| 6639939 |
Direct sequence spread spectrum method computer-based product apparatus and system tolerant to frequency reference offset |
Oct. 28, 2003 |
| 6636571 |
Automatic frequency control system with improved argument approximation |
Oct. 21, 2003 |
| 6633617 |
Device and method for compensating or creating doppler effect using digital signal processing |
Oct. 14, 2003 |
| 6631174 |
Automatic frequency control apparatus |
Oct. 7, 2003 |
| 6628926 |
Method for automatic frequency control |
Sep. 30, 2003 |
| 6628730 |
Demodulating digital video broadcast signals |
Sep. 30, 2003 |
| 6625431 |
Tuner device |
Sep. 23, 2003 |
| 6625237 |
Null-pilot symbol assisted fast automatic frequency control (AFC) system for coherent demodulation of continuous phase modulation (CPM) signals and method for implementing same |
Sep. 23, 2003 |
| 6608869 |
Dual-carrier heterodyne for separating orthogonal components of complex amplitude-modulation signals |
Aug. 19, 2003 |
| 6606487 |
Automatic frequency correction method and apparatus for time division duplex modes of 3G wireless communications |
Aug. 12, 2003 |
| 6603821 |
Wireless communication terminal capable of correctly specifying position of burst and having small frequency error of recovered carrier |
Aug. 5, 2003 |
| 6597728 |
Device and method for correcting local oscillation frequency of radio reception device according to pilot synchronous detection |
Jul. 22, 2003 |
| 6594286 |
Method and apparatus for coherent demodulation in communication system employing a potentially gated pilot signal |
Jul. 15, 2003 |
| 6594322 |
Method of distributed loop control for a multicarrier telephony transport |
Jul. 15, 2003 |
| 6590942 |
Least squares phase fit as frequency estimate |
Jul. 8, 2003 |
| 6587523 |
Radio signal receiving apparatus and a method of radio signal reception |
Jul. 1, 2003 |
| 6570441 |
Incoherent demodulator and method of incoherently demodulating an IF signal |
May. 27, 2003 |
| 6567488 |
Relating to demodulator alignment correction in tuners |
May. 20, 2003 |
| 6563801 |
Cable interface for data and power supply |
May. 13, 2003 |
| 6560276 |
Synchronization techniques using an interpolation filter |
May. 6, 2003 |
| 6560298 |
Method and apparatus for concurrent synchronization and improved automatic frequency control in a communication device |
May. 6, 2003 |
| 6553083 |
Frequency control and orthogonal detection circuit and FSK receiver |
Apr. 22, 2003 |
| 6549590 |
Current-controlled carrier tracking filter for improved spurious signal suppression |
Apr. 15, 2003 |
| 6549153 |
Digital to analog conversion method and apparatus |
Apr. 15, 2003 |
| 6535563 |
Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system |
Mar. 18, 2003 |
| 6529783 |
Process for estimating a parasite phase shift during reception of a multi-carrier signal and the corresponding receiver |
Mar. 4, 2003 |
| 6522696 |
Adaptive frequency correction in a wireless communications system, such as for GSM and IS54 |
Feb. 18, 2003 |
| 6519300 |
System and method for automatic frequency correction in a pilot symbol assisted demodulator |
Feb. 11, 2003 |
| 6519295 |
VSB DTV receiver with real-only digital synchrodyne to recover baseband symbol code |
Feb. 11, 2003 |
| 6510187 |
Mobile radio terminal and automatic frequency control circuit |
Jan. 21, 2003 |
| 6493406 |
Method and apparatus for symbol independent discriminator correlator automatic frequency control |
Dec. 10, 2002 |
| 6480150 |
Autonomous hardwired tracking loop coprocessor for GPS and WAAS receiver |
Nov. 12, 2002 |
| 6463106 |
Receiver with adaptive processing |
Oct. 8, 2002 |
| 6456672 |
Automatic frequency control communication system |
Sep. 24, 2002 |
| 6452989 |
System and method for combining multiple satellite channels into a virtual composite channel |
Sep. 17, 2002 |
| 6438183 |
Digital audio broadcast receiver and tuning method thereof |
Aug. 20, 2002 |
| 6434205 |
Digital broadcast receiver using weighted sum of channel impulse response data to adjust sampling window |
Aug. 13, 2002 |
| 6421378 |
Signal waveform equalizer apparatus |
Jul. 16, 2002 |
| 6404825 |
Digital radio receiver lock detector |
Jun. 11, 2002 |
| 6396884 |
Automatic frequency control circuit |
May. 28, 2002 |
| 6393068 |
Communication channel and frequency offset estimator |
May. 21, 2002 |
| 6389082 |
Receiver |
May. 14, 2002 |
| 6385257 |
Frequency demodulating circuit, optical disk apparatus thereof and preformating device |
May. 7, 2002 |
| 6377642 |
System for clock recovery |
Apr. 23, 2002 |
| 6377639 |
Method, system, and apparatus for unambiguous phase synchronization |
Apr. 23, 2002 |
| 6363124 |
Phase-noise compensated digital communication receiver and method therefor |
Mar. 26, 2002 |
| 6363126 |
Demodulator |
Mar. 26, 2002 |
| 6359944 |
Tuning system for achieving quick acquisition times for a digital satellite receiver |
Mar. 19, 2002 |
| 6356599 |
AFC device and method of controlling reception frequency in a dual-mode terminal |
Mar. 12, 2002 |
| 6356602 |
RF integrated circuit for downconverting a GPS signal |
Mar. 12, 2002 |
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