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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 |
| 7600167 |
Flip-flop, shift register, and scan test circuit |
Oct. 6, 2009 |
| 7599453 |
Doppler spread estimation for OFDM systems |
Oct. 6, 2009 |
| 7596190 |
System, method, and apparatus for correction of code doppler shift |
Sep. 29, 2009 |
| 7593491 |
Quadrature single-mixer multi-mode radio frequency receiver |
Sep. 22, 2009 |
| 7593358 |
Transmission device for remote control systems |
Sep. 22, 2009 |
| 7587003 |
Method and device for carrier-frequency synchronization of a vestigial-sideband-modulated signal |
Sep. 8, 2009 |
| 7583770 |
Multiplex signal error correction method and device |
Sep. 1, 2009 |
| 7583773 |
Frequency synthesizing device with automatic calibration |
Sep. 1, 2009 |
| 7580684 |
Programmable radio transceiver |
Aug. 25, 2009 |
| 7580486 |
Multi-input multi-frequency synthesizing apparatus and method for multi-band RF receiver |
Aug. 25, 2009 |
| 7580468 |
Synchronization circuits, orthogonal frequency division multiplexing (OFDM) receivers, and related methods and computer program products |
Aug. 25, 2009 |
| 7580390 |
Reducing handover frequency error |
Aug. 25, 2009 |
| 7580483 |
Trimming of local oscillation in an integrated circuit radio |
Aug. 25, 2009 |
| 7577214 |
OFDM signal receiver and receiving method |
Aug. 18, 2009 |
| 7577216 |
Guard interval and FFT mode detector in DVB-T receiver |
Aug. 18, 2009 |
| 7577219 |
Apparatus for communications |
Aug. 18, 2009 |
| 7570722 |
Carrier frequency offset estimation for OFDM systems |
Aug. 4, 2009 |
| 7567131 |
Device for ultra wide band frequency generating |
Jul. 28, 2009 |
| 7567640 |
Phase offset tracking method for tracking a phase offset and device thereof |
Jul. 28, 2009 |
| 7558346 |
Symbol detector based on frequency offset compensation in ZigBee system and symbol detecting method thereof |
Jul. 7, 2009 |
| 7558340 |
VSB receiver and carrier recovery apparatus thereof |
Jul. 7, 2009 |
| 7555073 |
Automatic frequency control loop circuit |
Jun. 30, 2009 |
| 7551696 |
Method and apparatus of detecting ISI/ICSI in an OFDM system |
Jun. 23, 2009 |
| 7545870 |
Reception device |
Jun. 9, 2009 |
| 7545891 |
Carrier recovery architectures for multi input multi output orthogonal frequency division multiplexing receivers |
Jun. 9, 2009 |
| 7541884 |
Methods and apparatus for crystal oscillator drift estimation and compensation |
Jun. 2, 2009 |
| 7541966 |
Apparatus and method for demodulating a modulated signal |
Jun. 2, 2009 |
| 7535976 |
Apparatus and method for integration of tuner functions in a digital receiver |
May. 19, 2009 |
| 7535982 |
Method and apparatus for adjusting phase of sampling frequency of ADC |
May. 19, 2009 |
| 7532693 |
Method and apparatus for acquistion and tracking of orthogonal frequency division multiplexing symbol timing, carrier frequency offset and phase noise |
May. 12, 2009 |
| 7532667 |
Pilot-directed and pilot/data-directed equalizers |
May. 12, 2009 |
| 7529325 |
Voice and data exchange over a packet based network with timing recovery |
May. 5, 2009 |
| 7529326 |
Precise frequency estimation of short data bursts |
May. 5, 2009 |
| 7526013 |
Tag communications with access point |
Apr. 28, 2009 |
| 7522691 |
Phase-locked circuit |
Apr. 21, 2009 |
| 7519140 |
Automatic frequency correction PLL circuit |
Apr. 14, 2009 |
| RE40695 |
Clock phase detecting circuit and clock regenerating circuit each arranged in receiving unit of multiplex radio equipment |
Apr. 7, 2009 |
| 7515657 |
Frequency tracking for OFDM transmission over frequency selective channels |
Apr. 7, 2009 |
| 7515653 |
Digital broadcasting receiver, driving method thereof, and self-diagnosis method thereof |
Apr. 7, 2009 |
| 7512195 |
Frequency control apparatus, wireless communication apparatus and frequency control method |
Mar. 31, 2009 |
| 7508888 |
Method and apparatus for precise open loop tuning of reference frequency within a wireless device |
Mar. 24, 2009 |
| 7509108 |
Method and apparatus for automatic frequency correction with a frequency error signal generated by block correlation of baseband samples with a known code sequence |
Mar. 24, 2009 |
| 7509104 |
Method and apparatus for tuning radio frequency |
Mar. 24, 2009 |
| 7502602 |
Method and apparatus to compensate loop error of phase locked loop |
Mar. 10, 2009 |
| 7499507 |
Synchronization module using a Viterbi slicer for a turbo decoder |
Mar. 3, 2009 |
| 7496161 |
Adaptive equalization system for a signal receiver |
Feb. 24, 2009 |
| 7496160 |
Frequency offset detection processing system and frequency offset detection processing method using the same |
Feb. 24, 2009 |
| 7489660 |
Circuit for preventing signal quality degradation in CDMA system and method thereof |
Feb. 10, 2009 |
| 7483498 |
Frequency content separation using complex frequency shifting converters |
Jan. 27, 2009 |
| 7480350 |
Carrier recovery apparatus and broadcasting receiver using the same |
Jan. 20, 2009 |
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