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Class Information
Number: 375/350
Name: Pulse or digital communications > Receivers > Interference or noise reduction > By filtering (e.g., digital)
Description: Subject matter wherein the noise is reduced by a frequency domain or digital sequence filter. The filter may remove interference or pass only desired signals.

Patents under this class:

Patent Number Title Of Patent Date Issued
8649729 System and method for providing broadband interference and allowing communication therethrough Feb. 11, 2014
8649472 Method and apparatus for improving channel estimation Feb. 11, 2014
8644437 Digital compensation of a nonlinear system Feb. 4, 2014
8644428 System and method for channel interpolation Feb. 4, 2014
8644416 Method and system for accurately converging a timing recovery mechanism and an equalizer at a receiver Feb. 4, 2014
8644406 Apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal Feb. 4, 2014
8638893 Mechanisms for the correction of I/Q impairments Jan. 28, 2014
8638892 Adaptive narrowband interference prediction circuit and method Jan. 28, 2014
8638891 Channel architecture with multiple signal processing branches for a given physical channel Jan. 28, 2014
8638888 Analog correlation technique for ultra low power receivers Jan. 28, 2014
8638883 DC offset cancellation in direct conversion receivers Jan. 28, 2014
8638174 Digital signal generator Jan. 28, 2014
8634507 Receiver having an adaptive filter and method of optimizing the filter Jan. 21, 2014
8634454 Receiver circuit, method of adjusting offset, and transmission/reception system Jan. 21, 2014
8630381 Apparatus and method for receiving dual band RF signals simultaneously Jan. 14, 2014
8630380 Receiver apparatus, image signal attenuating method, and mismatch compensating method Jan. 14, 2014
8630377 Detection of wideband interference Jan. 14, 2014
8630375 Method and apparatus for received signal processing in a multi-stage receiver Jan. 14, 2014
8630337 DVB-S2 Demodulator Jan. 14, 2014
8625726 Low power radio frequency to digital receiver Jan. 7, 2014
8625217 Branch metric computation and noise predictive calibration/adaptation for over-sampled Y samples Jan. 7, 2014
8619929 Positioning signal reception device and control method of positioning signal reception device Dec. 31, 2013
8619928 Multi-stage interference suppression Dec. 31, 2013
8619921 Channel estimation apparatus, channel estimation method and program Dec. 31, 2013
8615210 Methods and apparatus for power measurement in a communication system Dec. 24, 2013
8615062 Adaptation using error signature analysis in a communication system Dec. 24, 2013
8615061 Method and apparatus for cross polarization and cross satellite interference cancellation Dec. 24, 2013
8611937 FM receiving device and filtering method Dec. 17, 2013
8611485 Method and a device for controlling frequency synchronization Dec. 17, 2013
8611476 Phase-adjusted channel estimation for frequency division multiplexed channels Dec. 17, 2013
8611410 Variable modulus mechanism for performing equalization without a priori knowledge of modulation type or constellation order Dec. 17, 2013
8611409 Method and apparatus for performing channel equalization on a MIMO signal Dec. 17, 2013
8606193 RF transceiver IC having internal loopback conductor for IP2 self test Dec. 10, 2013
8605844 Apparatus and method for receiving imperfectly phase compensated electromagnetic signals Dec. 10, 2013
8605840 Method to cancel impulsive interference from a signal processing system Dec. 10, 2013
8599981 Post-filter, decoding device, and post-filter processing method Dec. 3, 2013
8599975 System and method for controlling gain and timing phase in a presence of a first least mean square filter using a second adaptive filter Dec. 3, 2013
8599909 Serial link voltage margin determination in mission mode Dec. 3, 2013
8594261 Transmitting/receiving system and broadcast signal processing method Nov. 26, 2013
8594260 Method and system for channel equalization Nov. 26, 2013
8594259 Receiving circuit, use, and method for receiving an encoded and modulated radio signal Nov. 26, 2013
8594258 Adaptive noise filtering and equalization Nov. 26, 2013
8594173 Method for determining updated filter coefficients of an adaptive filter adapted by an LMS algorithm with pre-whitening Nov. 26, 2013
8588353 Frequency selective IQ correction Nov. 19, 2013
8588340 Receiving device Nov. 19, 2013
8582681 Signal receiver apparatus and waveform shaping method Nov. 12, 2013
8582676 Low complexity general sampling recovery method and apparatus Nov. 12, 2013
8582636 High performance equalizer having reduced complexity Nov. 12, 2013
8582635 Sparse and reconfigurable floating tap feed forward equalization Nov. 12, 2013
8576966 Systems and methods for detecting tampering with video transmission systems Nov. 5, 2013

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