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Class Information
Number: 375/346
Name: Pulse or digital communications > Receivers > Interference or noise reduction
Description: Subject matter where the deleterious effects of extraneous signals are eliminated or suppressed at the receiver.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6522626 |
Power line communications system and method of operation thereof |
Feb. 18, 2003 |
| 6519278 |
Transmitting/receiving apparatus using a plurality of spreading codes |
Feb. 11, 2003 |
| 6519300 |
System and method for automatic frequency correction in a pilot symbol assisted demodulator |
Feb. 11, 2003 |
| 6515713 |
Method and apparatus which compensates for channel distortion |
Feb. 4, 2003 |
| 6516183 |
Method and apparatus for disturbance compensation of a direct conversion receiver in a full duplex transceiver |
Feb. 4, 2003 |
| 6510189 |
Channel switching device and channel switching method |
Jan. 21, 2003 |
| 6510190 |
Method and apparatus for estimating fading distortion of a signal propagating in a communication channel |
Jan. 21, 2003 |
| 6507623 |
Signal noise reduction by time-domain spectral subtraction |
Jan. 14, 2003 |
| 6504884 |
Method for correcting DC offsets in a receiver |
Jan. 7, 2003 |
| 6501804 |
Method for the transmission of digital signals |
Dec. 31, 2002 |
| 6501806 |
Estimation of introduced frequency offset by a signal correction and transmission medium |
Dec. 31, 2002 |
| 6502063 |
Method and apparatus for recursive filtering of parallel intermittent streams of unequally reliable time discrete data |
Dec. 31, 2002 |
| 6498820 |
Low complexity frequency estimator and interference cancellation method and device |
Dec. 24, 2002 |
| 6493397 |
Radio communication device and radio communication method |
Dec. 10, 2002 |
| 6493541 |
Transmit power control time delay compensation in a wireless communications system |
Dec. 10, 2002 |
| 6490328 |
High speed data transceiver in harsh wiring networks |
Dec. 3, 2002 |
| 6487257 |
Signal noise reduction by time-domain spectral subtraction using fixed filters |
Nov. 26, 2002 |
| 6487261 |
Distortion compensating device |
Nov. 26, 2002 |
| 6480482 |
Multi-user interference cancellor with small sized circuits and little quantity of calculation |
Nov. 12, 2002 |
| 6477196 |
Direct sequence spread spectrum communications receiver and method for efficient narrow-band signal excision |
Nov. 5, 2002 |
| 6477212 |
Method and apparatus for reducing interference in a twisted wire pair transmission system |
Nov. 5, 2002 |
| 6473415 |
Interference canceling method and apparatus of a multi-mode subtraction type in asynchronous multipath channels of code division multiple access system |
Oct. 29, 2002 |
| 6473471 |
Slope drift and offset compensation in zero-if receivers |
Oct. 29, 2002 |
| 6473472 |
Adaptive array communication system and receiver |
Oct. 29, 2002 |
| 6469988 |
Low-level circuit implementation of signal flow graphs for real-time signal processing of high-speed digital signals |
Oct. 22, 2002 |
| 6470059 |
Automatic filter for asymmetric digital subscriber line system |
Oct. 22, 2002 |
| 6466631 |
Device and method of changing the noise characteristic in a receiver of a data transmission system |
Oct. 15, 2002 |
| 6463105 |
Methods and systems for estimation of the carrier to interference ratio for a wireless communication channel |
Oct. 8, 2002 |
| 6459914 |
Signal noise reduction by spectral subtraction using spectrum dependent exponential gain function averaging |
Oct. 1, 2002 |
| 6456673 |
Digital radio frequency interference canceller |
Sep. 24, 2002 |
| 6452983 |
Demodulator for improving reception performance in satellite and Mobile communications |
Sep. 17, 2002 |
| 6452988 |
Adaptive sensor array apparatus |
Sep. 17, 2002 |
| 6449320 |
Equalization with DC-offset compensation |
Sep. 10, 2002 |
| 6449324 |
Digital radio frequency interference canceller |
Sep. 10, 2002 |
| 6449470 |
Method and device for estimating the frequency offset in a signal received by a mobile-telephone demodulator |
Sep. 10, 2002 |
| 6442129 |
Enhanced channel estimation |
Aug. 27, 2002 |
| 6442218 |
Demodulator |
Aug. 27, 2002 |
| 6442221 |
Ghost eliminating equalizer |
Aug. 27, 2002 |
| 6438161 |
Method of designing an equalizer |
Aug. 20, 2002 |
| 6438164 |
Technique for minimizing decision feedback equalizer wordlength in the presence of a DC component |
Aug. 20, 2002 |
| 6433631 |
RF slipring receiver for a computerized tomography system |
Aug. 13, 2002 |
| 6434191 |
Adaptive layered coding for voice over wireless IP applications |
Aug. 13, 2002 |
| 6434204 |
Method and system for DC offset correction of a quadrature modulated RF signal |
Aug. 13, 2002 |
| 6430216 |
Rake receiver for spread spectrum signal demodulation |
Aug. 6, 2002 |
| 6430217 |
Noise eliminated digital wireless transceiver apparatus |
Aug. 6, 2002 |
| 6430401 |
Technique for effectively communicating multiple digital representations of a signal |
Aug. 6, 2002 |
| 6426780 |
DTV receiver with low-band final I-F signal filtered for suppressing co-channel interfering NTSC audio carrier |
Jul. 30, 2002 |
| 6426983 |
Method and apparatus of using a bank of filters for excision of narrow band interference signal from CDMA signal |
Jul. 30, 2002 |
| 6424250 |
Communication system utilizing modified geometric harmonic modulation |
Jul. 23, 2002 |
| 6421402 |
Method for calculating impulse response, and receiver |
Jul. 16, 2002 |
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