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Class Information
Number: 375/278
Name: Pulse or digital communications > Systems using alternating or pulsating current > Angle modulation > Frequency shift keying > Antinoise or distortion
Description: Subject matter with provision for correction or reduction of distortion or for removing or correcting for the effects of extraneous pulses.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7623604 |
Suppressing interference for wireless reception and improvements relating to processing a frequency shift keyed signal |
Nov. 24, 2009 |
| 7583754 |
Method and system for broadband predistortion linearization |
Sep. 1, 2009 |
| 7573959 |
Method and apparatus for removing impulse noise |
Aug. 11, 2009 |
| 7564912 |
Method and apparatus for channel state information generation in a DVB-T receiver |
Jul. 21, 2009 |
| 7545881 |
Method and apparatus for controlling spurious transmissions in a communications system |
Jun. 9, 2009 |
| 7499509 |
Receiver for compensating nonlinearly distorted multicarrier signals |
Mar. 3, 2009 |
| 7492831 |
Method for generating multiplier coefficients for a mixer |
Feb. 17, 2009 |
| 7469020 |
Systems, methods, and apparatus for reducing dynamic range requirements of a power amplifier in a wireless device |
Dec. 23, 2008 |
| 7342973 |
Method and apparatus for adapting multi-band ultra-wideband signaling to interference sources |
Mar. 11, 2008 |
| 7330518 |
Distortion compensation circuit, and a transmission apparatus including the same |
Feb. 12, 2008 |
| 7305046 |
I/Q modulator with carrier predistortion |
Dec. 4, 2007 |
| 7283594 |
Impedance modulation signaling |
Oct. 16, 2007 |
| 7248639 |
Method for reducing the out-of-band emission in AM transmitters for digital transmission |
Jul. 24, 2007 |
| 7242725 |
Adaptive broadband post-distortion receiver for digital radio communication system |
Jul. 10, 2007 |
| 7164728 |
Method and device for forming transport frames from coded-signal frames and device for extracting coded signal frames |
Jan. 16, 2007 |
| 7158582 |
Digital I/Q modulator having a predistortion |
Jan. 2, 2007 |
| 7131038 |
Performance evaluation of multicarrier channels |
Oct. 31, 2006 |
| 7120192 |
Spectrum spread communication synchronization establishing apparatus using frequency offset and receiver with the same |
Oct. 10, 2006 |
| 7072420 |
Communications systems |
Jul. 4, 2006 |
| 7065151 |
Channel optimization system |
Jun. 20, 2006 |
| 7046738 |
8-PSK transmit filtering using reduced look up tables |
May. 16, 2006 |
| 6922554 |
Method for implementing a transceiver and a transceiver |
Jul. 26, 2005 |
| 6836226 |
Ultra-wideband pulse modulation system and method |
Dec. 28, 2004 |
| 6834109 |
Method and apparatus for mitigation of disturbers in communication systems |
Dec. 21, 2004 |
| 6810089 |
Block detection method for a channel subjected to fading |
Oct. 26, 2004 |
| 6771708 |
Nonlinear compensator |
Aug. 3, 2004 |
| 6731914 |
Determination of transmitter distortion |
May. 4, 2004 |
| 6704353 |
Method and apparatus for tracking the magnitude of channel induced distortion to a transmitted signal |
Mar. 9, 2004 |
| 6647069 |
Method and apparatus for capacity increase and enhanced communications performance in CATV networks |
Nov. 11, 2003 |
| 6608860 |
Low power dissipation, high linearity transmitter |
Aug. 19, 2003 |
| 6574285 |
128-ary signal constellations suitable for non-linear amplification |
Jun. 3, 2003 |
| 6563885 |
Decimated noise estimation and/or beamforming for wireless communications |
May. 13, 2003 |
| 6529565 |
Circuit for detecting a center error to correct same |
Mar. 4, 2003 |
| 6487240 |
Apparatus for receiving and recovering frequency shift keyed symbols |
Nov. 26, 2002 |
| 6477196 |
Direct sequence spread spectrum communications receiver and method for efficient narrow-band signal excision |
Nov. 5, 2002 |
| 6445747 |
Method and apparatus to reduce peak to average power ratio in multi-carrier modulation |
Sep. 3, 2002 |
| 6442218 |
Demodulator |
Aug. 27, 2002 |
| 6411644 |
Frequency hop pilot technique for a control system that reduces distortion produced by electrical circuits |
Jun. 25, 2002 |
| 6385261 |
Impulse noise detector and noise reduction system |
May. 7, 2002 |
| 6377630 |
Transmission circuit |
Apr. 23, 2002 |
| 6320912 |
Digital modulator |
Nov. 20, 2001 |
| 6252912 |
Adaptive predistortion system |
Jun. 26, 2001 |
| 6192090 |
Circuit and method for adaptively calculating decision error of digital signal in digital modulation system |
Feb. 20, 2001 |
| 6148047 |
DC offset compensation for zero if quadrature demodulator |
Nov. 14, 2000 |
| 6034990 |
Digital radio transmission and reception system applying a direct modulation and demodulation method |
Mar. 7, 2000 |
| 6016114 |
Apparatus and method of fabricating mixed signal interface in GSM wireless application |
Jan. 18, 2000 |
| 5995552 |
Radio equipment and peripheral apparatus |
Nov. 30, 1999 |
| 5933448 |
Automatic tuning of a radio transceiver |
Aug. 3, 1999 |
| 5812612 |
Method and apparatus for transmitting an intermittent signal in a ratio communication system |
Sep. 22, 1998 |
| 5745528 |
VSB mode selection system |
Apr. 28, 1998 |
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