| |
 |
|
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 |
| 7164731 |
Apparatus and method of adaptive frequency offset estimations for a receiver |
Jan. 16, 2007 |
| 7164737 |
Method for estimating doppler frequency |
Jan. 16, 2007 |
| 7158586 |
Systems and methods to provide wideband magnitude and phase imbalance calibration and compensation in quadrature receivers |
Jan. 2, 2007 |
| 7155189 |
AM receiver |
Dec. 26, 2006 |
| 7146143 |
Communication semiconductor integrated circuit device and wireless communication system |
Dec. 5, 2006 |
| 7145970 |
Frequency offset detector for AFC under rayleigh fading |
Dec. 5, 2006 |
| 7142618 |
Receiver having decisional feedback equalizer with remodulation and related methods |
Nov. 28, 2006 |
| 7142818 |
Systems and methods for reducing radio receiver interference from an on-board avionics transmitter |
Nov. 28, 2006 |
| 7139340 |
Robust OFDM carrier recovery methods and apparatus |
Nov. 21, 2006 |
| 7139339 |
Iterative data-aided carrier frequency offset estimation for code division multiple access systems |
Nov. 21, 2006 |
| 7139333 |
Frequency error estimating receiver, and frequency error estimating method |
Nov. 21, 2006 |
| 7133647 |
Chiprate correction in digital transceivers |
Nov. 7, 2006 |
| 7127010 |
Oscillator controlling |
Oct. 24, 2006 |
| 7123670 |
Fine frequency offset estimation and calculation and use to improve communication system performance |
Oct. 17, 2006 |
| 7116741 |
Compensation of sampling frequency offset and local oscillator frequency offset in a OFDM receiver |
Oct. 3, 2006 |
| 7116731 |
Method and apparatus for adjusting symbol timing and/or symbol positioning of a receive burst of data within a radio receiver |
Oct. 3, 2006 |
| 7107022 |
Single RF oscillator single-side band modulation for RFID readers using tone insertion during reader reception |
Sep. 12, 2006 |
| 7103339 |
Automatic frequency correction method and receiver for time division duplex modes of 3G wireless communications |
Sep. 5, 2006 |
| 7103332 |
Apparatus and method for compensating for frequency offset in a mobile communication system |
Sep. 5, 2006 |
| 7099642 |
Method and apparatus for matching receiver carrier frequency |
Aug. 29, 2006 |
| 7095993 |
Frequency auto-correction apparatus for CDMA multipath fading channel |
Aug. 22, 2006 |
| 7092368 |
Reduction of device discovery delays in frequency hopping-based ad-hoc networks |
Aug. 15, 2006 |
| 7088787 |
Post-FFT scaling to reduce multiple effects |
Aug. 8, 2006 |
| 7088955 |
Method and apparatus for acquiring and tracking pilots in a CDMA communication system |
Aug. 8, 2006 |
| 7079605 |
Frequency estimation based on constellation error in QAM modems |
Jul. 18, 2006 |
| 7076225 |
Variable gain selection in direct conversion receiver |
Jul. 11, 2006 |
| 7076008 |
Method and apparatus for estimating and correcting gain and phase imbalance in a code division multiple access system |
Jul. 11, 2006 |
| 7068593 |
Apparatus and method for synchronizing frequency in orthogonal frequency division multiplexing communication system |
Jun. 27, 2006 |
| 7065163 |
Frequency error estimation using multiple integration lengths |
Jun. 20, 2006 |
| 7062240 |
Automatic frequency control processing in multi-channel receivers |
Jun. 13, 2006 |
| 7061996 |
Vestigial sideband receiver and method for restoring carrier wave |
Jun. 13, 2006 |
| 7058378 |
Method and apparatus for automatic frequency correction of a local oscilator with an error signal derived from an angle value of the conjugate product and sum of block correlator outputs |
Jun. 6, 2006 |
| 7054352 |
CDMA mobile telephone |
May. 30, 2006 |
| 7043207 |
Fading frequency estimating apparatus |
May. 9, 2006 |
| 7042923 |
Method and apparatus for frequency hopping in a spread spectrum digital cordless telephone system |
May. 9, 2006 |
| 7039123 |
Signal demodulation method and apparatus for reproducing data from received signal |
May. 2, 2006 |
| 7039131 |
Carrier frequency offset estimation in a wireless communication system |
May. 2, 2006 |
| 7039364 |
Method for performing measurements in a wireless terminal and a wireless terminal |
May. 2, 2006 |
| 7035605 |
Method and device for automatic control of the frequency of a local oscillator in a DS-CDMA type receiver |
Apr. 25, 2006 |
| 7035358 |
Method and apparatus for receiving a wideband signal in the presence of multipath channel imperfections and frequency offset |
Apr. 25, 2006 |
| 7027815 |
Compensating for frequency shift and timing shift in frequency and time tracking loops based on mobile unit velocity |
Apr. 11, 2006 |
| 7027535 |
Frequency tracking loop and method of frequency tracking |
Apr. 11, 2006 |
| 7023928 |
Synchronization of a pilot assisted channel estimation orthogonal frequency division multiplexing system |
Apr. 4, 2006 |
| 7020225 |
Frequency searcher and frequency-locked data demodulator using a programmable rotator |
Mar. 28, 2006 |
| 7016404 |
Automatic frequency correction for mobile radio receivers |
Mar. 21, 2006 |
| 7012881 |
Timing and frequency offset estimation scheme for OFDM systems by using an analytic tone |
Mar. 14, 2006 |
| 7010068 |
Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system |
Mar. 7, 2006 |
| 7003271 |
Direct conversion receiver having a gain-setting dependent filter parameter |
Feb. 21, 2006 |
| 7002946 |
Frequency discriminator |
Feb. 21, 2006 |
| 6999529 |
Digital AM demodulator |
Feb. 14, 2006 |
|
|
|
