| |
 |
|
Class Information
Number: 455/324
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Frequency modifying or conversion > Particular frequency conversion structure or circuitry > Homodyne (i.e., zero beat or synchrodyne reception)
Description: Subject matter comprising frequency conversion or modifying means and combined with means whereby a local signal wave of the same frequency as the incoming modulated wave is injected therein (i.e., zero beat).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7620399 |
Method and system for performing handover between multiple modes using a single wireless receiver |
Nov. 17, 2009 |
| 7606323 |
Carrier leak reduction transmitter circuit |
Oct. 20, 2009 |
| 7602865 |
Apparatus and method for enhancing a reception rate of a receiver |
Oct. 13, 2009 |
| 7603094 |
DC offset correction for direct conversion receivers |
Oct. 13, 2009 |
| 7596363 |
Method and system for measuring receiver mixer IQ mismatch |
Sep. 29, 2009 |
| 7593707 |
Method and system for compensation of DC offset in an RF receiver |
Sep. 22, 2009 |
| 7590400 |
Radio apparatus |
Sep. 15, 2009 |
| 7580689 |
Transmission method, transmitter, reception method, and receiver |
Aug. 25, 2009 |
| 7580478 |
I/Q modulator using current-mixing and direct conversion wireless communication transmitter using the same |
Aug. 25, 2009 |
| 7577418 |
Sub-harmonic mixer and down converter with the same |
Aug. 18, 2009 |
| 7577419 |
Digital mixer system and method |
Aug. 18, 2009 |
| 7570926 |
RF transceiver with compact stacker mixer design for multiple frequency conversion |
Aug. 4, 2009 |
| 7567787 |
Apparatus and method of feeding internal calibration signal through electro-static discharge protection circuitry |
Jul. 28, 2009 |
| 7565120 |
Semiconductor integrated circuit and semiconductor integrated circuit for radio communication |
Jul. 21, 2009 |
| 7558550 |
Versatile system for multimode, wireless communication receiver with ZIF and Near-ZIF operations |
Jul. 7, 2009 |
| 7558537 |
Modified preamble for programmable transmitter |
Jul. 7, 2009 |
| 7558351 |
Super harmonic filter and method of filtering frequency components from a signal |
Jul. 7, 2009 |
| 7555279 |
Systems and methods for DC offset correction in a direct conversion RF receiver |
Jun. 30, 2009 |
| 7529533 |
Configurable homodyne/heterodyne radio receiver and RFID reader employing same |
May. 5, 2009 |
| 7522902 |
Adaptive DC offset compensation apparatus and method thereof |
Apr. 21, 2009 |
| 7522901 |
Direct digital conversion tuner and method for using same |
Apr. 21, 2009 |
| 7519349 |
Transceiver development in VHF/UHF/GSM/GPS/bluetooth/cordless telephones |
Apr. 14, 2009 |
| 7512394 |
Wideband up-conversion mixer |
Mar. 31, 2009 |
| 7509112 |
Wideband image rejection mixer |
Mar. 24, 2009 |
| 7499690 |
Variable frequency clock generator for synchronizing data rates between clock domains in radio frequency wireless communication systems |
Mar. 3, 2009 |
| 7499693 |
Mixer for homodyne RF receiver |
Mar. 3, 2009 |
| 7483684 |
Mixer |
Jan. 27, 2009 |
| 7477886 |
Cascading-synchronous mixer and method of operation |
Jan. 13, 2009 |
| 7474885 |
Passive subharmonic mixer |
Jan. 6, 2009 |
| 7469137 |
Radio receiver DC offset cancellation via ADC input bias |
Dec. 23, 2008 |
| 7469136 |
RF receivers and methods therefor |
Dec. 23, 2008 |
| 7466972 |
System and method for optimized receiver performance in a low intermediate frequency architecture for edge |
Dec. 16, 2008 |
| 7463875 |
Wireless device minimizing use of external bandpass filter between low-noise amplifier and first mixer |
Dec. 9, 2008 |
| 7454186 |
Direct conversion receiving apparatus and celluar phone |
Nov. 18, 2008 |
| 7450920 |
Method and system for compensation of DC offset in an RF receiver |
Nov. 11, 2008 |
| 7450919 |
I/Q mismatch correction using transmitter leakage and gain modulation |
Nov. 11, 2008 |
| 7421040 |
Modem tuner |
Sep. 2, 2008 |
| 7415260 |
Current-mode direct conversion receiver |
Aug. 19, 2008 |
| 7415264 |
Low noise filter for a wireless receiver |
Aug. 19, 2008 |
| 7412222 |
Quadrature correction method for analog television reception using direct-conversion tuners |
Aug. 12, 2008 |
| 7403760 |
DC offset correction for direct-conversion receiver |
Jul. 22, 2008 |
| 7398068 |
Dual antenna system having one phase lock loop |
Jul. 8, 2008 |
| 7395040 |
Multiple band multiple input multiple output transceiver integrated circuit |
Jul. 1, 2008 |
| 7386291 |
Integrated millimeter-wave quadrature generator |
Jun. 10, 2008 |
| 7379727 |
RF front-end receiver |
May. 27, 2008 |
| 7376405 |
Receiver circuit |
May. 20, 2008 |
| 7376400 |
System and method for digital radio receiver |
May. 20, 2008 |
| 7376440 |
N-plexer systems and methods for use in a wireless communications device |
May. 20, 2008 |
| 7373132 |
High frequency signal receiver |
May. 13, 2008 |
| 7373114 |
Signal transmission circuit, signal output circuit and termination method of signal transmission circuit |
May. 13, 2008 |
|
|
|
