| |
 |
|
Class Information
Number: 455/192.1
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Signal selection based on frequency (e.g., tuning) > With frequency control
Description: Subject matter including a control means for stabilizing a receiver local oscillator frequency.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7616935 |
Method and apparatus for matching receiver carrier frequency |
Nov. 10, 2009 |
| 7558546 |
Selectable high-side/low-side mix for high intermediate frequency (IF) receivers |
Jul. 7, 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 |
| 7453962 |
Adaptive frequency control apparatus and method thereof |
Nov. 18, 2008 |
| 7447483 |
Radio apparatus and a method for reducing interference in a radio apparatus |
Nov. 4, 2008 |
| 7424278 |
Low IF mixer with improved selectivity performance |
Sep. 9, 2008 |
| 7395037 |
Control system for controlling an output signal power level of a wireless transmitter |
Jul. 1, 2008 |
| 7389091 |
High-frequency amplification circuit |
Jun. 17, 2008 |
| 7286804 |
Receiver digital-analog converter and tuning circuit |
Oct. 23, 2007 |
| 7218179 |
Methods and apparatus for calibrating gm-Z |
May. 15, 2007 |
| 7215935 |
Segmented CDMA searching |
May. 8, 2007 |
| 7209716 |
Radio communication system, radio station, and radio communication method |
Apr. 24, 2007 |
| 7190753 |
Method and apparatus for temporally correcting a data signal |
Mar. 13, 2007 |
| 7184725 |
Pole switch down converter with symmetric resonator |
Feb. 27, 2007 |
| 7177606 |
Control system for controlling an output signal power level of a wireless transmitter |
Feb. 13, 2007 |
| 7155183 |
Method and apparatus for adjusting reference oscillator frequency in a mobile wireless device |
Dec. 26, 2006 |
| 7155189 |
AM receiver |
Dec. 26, 2006 |
| 7120390 |
BLUETOOTH smart offset compensation |
Oct. 10, 2006 |
| 7099642 |
Method and apparatus for matching receiver carrier frequency |
Aug. 29, 2006 |
| 7088974 |
Mobile station capable of performing automatic frequency control based on correspondence of frequency error and TCXO control voltage to base station |
Aug. 8, 2006 |
| 7072631 |
Mobile communication terminal and method of calibrating frequency in the same |
Jul. 4, 2006 |
| 7027787 |
Automatic frequency control system, operation control method thereof and mobile communication device using the same |
Apr. 11, 2006 |
| 6996156 |
CDMA receiver capable of estimation of frequency offset in high precision |
Feb. 7, 2006 |
| 6983128 |
Radio control transmitter and receiver |
Jan. 3, 2006 |
| 6980775 |
Automatic frequency control (AFC) system and method using an adaptive threshold to improve accuracy of the direct current (DC) component calculation for a received signal |
Dec. 27, 2005 |
| 6978125 |
Methods and apparatus for tuning pre-selection filters in radio receivers |
Dec. 20, 2005 |
| 6975847 |
Filtering of a receive frequency band |
Dec. 13, 2005 |
| 6816716 |
Radio frequency control for communication systems |
Nov. 9, 2004 |
| 6771943 |
Image rejection |
Aug. 3, 2004 |
| 6771937 |
Frequency-stabilized transmitting/receiving configuration |
Aug. 3, 2004 |
| 6748199 |
Portable telephone apparatus and stablly supplying method of reference frequency |
Jun. 8, 2004 |
| 6731917 |
Method and apparatus for minimizing image power in the output of a receiver circuit |
May. 4, 2004 |
| 6704552 |
Mobile communication apparatus with an automatic frequency controller |
Mar. 9, 2004 |
| 6704555 |
Apparatus and method for calibrating local oscillation frequency in wireless communications |
Mar. 9, 2004 |
| 6694131 |
Method and apparatus for adaptive image rejection |
Feb. 17, 2004 |
| 6658241 |
Radio receiver automatic frequency control techniques |
Dec. 2, 2003 |
| 6628926 |
Method for automatic frequency control |
Sep. 30, 2003 |
| 6571088 |
Automatic frequency control circuit |
May. 27, 2003 |
| 6560298 |
Method and apparatus for concurrent synchronization and improved automatic frequency control in a communication device |
May. 6, 2003 |
| 6463266 |
Radio frequency control for communications systems |
Oct. 8, 2002 |
| 6404825 |
Digital radio receiver lock detector |
Jun. 11, 2002 |
| 6389294 |
Method of determining effect of radio wave multipath fading |
May. 14, 2002 |
| 6327464 |
Frequency conversion circuit having a variable trap circuit tuned to the local oscillator frequency |
Dec. 4, 2001 |
| 6278866 |
Bias signal generator in radio receiver |
Aug. 21, 2001 |
| 6181923 |
Automatic frequency control circuit and method of automatic frequency control |
Jan. 30, 2001 |
| 6163710 |
Method and apparatus for compliance to multiple frequency plans |
Dec. 19, 2000 |
| 6163687 |
Tuning module for a dual frequency PLL synthesized tuner |
Dec. 19, 2000 |
| 6148187 |
Automatic frequency control method and circuit |
Nov. 14, 2000 |
| 6144842 |
Radio frequency level control circuit with reduced supply voltage |
Nov. 7, 2000 |
|
|
|
