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Class Information
Number: 375/351
Name: Pulse or digital communications > Receivers > Interference or noise reduction > Gating, blanking, etc.
Description: Subject matter where noise pulses are eliminated by the operation of switches to open or short the signal path to delete the undesired signals.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7596195 |
Bandpass filter with reversible IQ polarity to enable a high side or low side injection receiver architecture |
Sep. 29, 2009 |
| 7558339 |
Asynchronous ZCD demodulator/decoder |
Jul. 7, 2009 |
| 7545845 |
Wireless communication system, wireless transmitter, wireless receiver, wireless communication method, wireless transmission method and wireless reception method |
Jun. 9, 2009 |
| 7539267 |
Impulse radio systems with multiple pulse types |
May. 26, 2009 |
| 7483685 |
Method and device for wavelet denoising |
Jan. 27, 2009 |
| 7400836 |
Optical receiving device and optical receiving method |
Jul. 15, 2008 |
| 7391833 |
Channel estimator adopting masking |
Jun. 24, 2008 |
| 7366264 |
Method and system for reducing noise in a multi-carrier signal |
Apr. 29, 2008 |
| 7272187 |
Filter circuit and radio apparatus |
Sep. 18, 2007 |
| 7260163 |
Noise blanker using an adaptive all-pole predictor and method therefor |
Aug. 21, 2007 |
| 7251303 |
Digital data receiving apparatus and method with system changeover function |
Jul. 31, 2007 |
| 7236743 |
Method and arrangement for noise rejection in a receiver circuit |
Jun. 26, 2007 |
| 7218903 |
Squelch detecting circuit |
May. 15, 2007 |
| 7076011 |
Integrated frequency translation and selectivity |
Jul. 11, 2006 |
| 7068990 |
Receiver for two orthogonally polarized signals |
Jun. 27, 2006 |
| 7006583 |
Method and apparatus for receiving differential ultra wideband signals |
Feb. 28, 2006 |
| 7003059 |
Jabber counter mechanism for elastic buffer operation |
Feb. 21, 2006 |
| 6961396 |
Digital banking circuit |
Nov. 1, 2005 |
| 6934319 |
Configurable multimode despreader for spread spectrum applications |
Aug. 23, 2005 |
| 6859645 |
Squelch detection circuit |
Feb. 22, 2005 |
| 6788923 |
Receiver noise reduction with expanding gated pulses |
Sep. 7, 2004 |
| 6775526 |
Modulated input signal filter |
Aug. 10, 2004 |
| 6683906 |
Radio communication apparatus |
Jan. 27, 2004 |
| 6578162 |
Error recovery method and apparatus for ADPCM encoded speech |
Jun. 10, 2003 |
| 6577851 |
Impulse noise blanker |
Jun. 10, 2003 |
| 6560301 |
Integrated frequency translation and selectivity with a variety of filter embodiments |
May. 6, 2003 |
| 6480532 |
Echo cancellation for an ADSL modem |
Nov. 12, 2002 |
| 6473596 |
Close proximity transmitter interference limiting |
Oct. 29, 2002 |
| 6393079 |
Transient-suppressing mode switch |
May. 21, 2002 |
| 6208700 |
Apparatus for processing a signal received via an information carrier |
Mar. 27, 2001 |
| 6122332 |
Apparatus for reducing impulse noise in high-frequency digital receivers |
Sep. 19, 2000 |
| 6049565 |
Method and apparatus for audio communication |
Apr. 11, 2000 |
| 6047036 |
System and method for implementing a mute voice signal upon reception of a ADPCM zero nibble in wireless communications |
Apr. 4, 2000 |
| 5937005 |
Error rate measurement apparatus for a mobile radio communications system |
Aug. 10, 1999 |
| 5889821 |
Low noise front-end blanking and interleaving for satellite reception in pulsed interference environments |
Mar. 30, 1999 |
| 5859880 |
Multi-stage squelch apparatus, and associated method, for a multi-branch receiver |
Jan. 12, 1999 |
| 5737633 |
Serial data receiving device having a memory for storing a reception permit signal which enable or disable the device from hand-shaking with the transmitting device |
Apr. 7, 1998 |
| 5684840 |
System for eliminating the affected by transmission errors in a digital stream |
Nov. 4, 1997 |
| 5675614 |
Digital squelch circuit |
Oct. 7, 1997 |
| 5659576 |
Balanced processing based on receiver selection |
Aug. 19, 1997 |
| 5638407 |
Inversion prevention device |
Jun. 10, 1997 |
| 5629955 |
Variable spectral response FIr filter and filtering method |
May. 13, 1997 |
| 5615412 |
Digital squelch tail system and method for same |
Mar. 25, 1997 |
| 5564090 |
Method and apparatus for dynamically adjusting receiver squelch threshold |
Oct. 8, 1996 |
| 5539781 |
Combining diversity apparatus with squelch function |
Jul. 23, 1996 |
| 5537675 |
Splatter controlling noise blanker |
Jul. 16, 1996 |
| 5526530 |
Receiver with squelching responsive to input signal frequency |
Jun. 11, 1996 |
| 5493711 |
Radio receiver for locating the strongest signal carrying a selected program |
Feb. 20, 1996 |
| 5473615 |
Digital supervisory audio tone detector |
Dec. 5, 1995 |
| 5465404 |
Communications receiver with an adaptive squelch system |
Nov. 7, 1995 |
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