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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:
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Patent Number Title Of Patent Date Issued
7751514 System and method of detecting burst noise and minimizing the effect of burst noise Jul. 6, 2010
7751509 Method for multiple-access interference suppression for MC-CDMA by frequency domain oversampling Jul. 6, 2010
7751372 Technique for adaptive data rate communication over fading dispersive channels Jul. 6, 2010
7746970 Method and apparatus for filtering noisy estimates to reduce estimation errors Jun. 29, 2010
7746924 Determination of filter weights Jun. 29, 2010
7738847 Automatic gain control for a tuner Jun. 15, 2010
7738610 Method and apparatus for automatic alignment of notch filters Jun. 15, 2010
7738574 Convolutive blind source separation using relative optimization Jun. 15, 2010
7738502 Signal noise filtering in a serial interface Jun. 15, 2010
7734274 Narrow-band detections of a received signal Jun. 8, 2010
7733998 System and method for programmably adjusting gain and frequency response in a 10-gigabit Ethernet/fibre channel system Jun. 8, 2010
7733997 Signal adjustment receiver circuitry Jun. 8, 2010
7733996 Joint space-time optimum filters (JSTOF) for interference cancellation Jun. 8, 2010
7733995 Noise filter and filtering method Jun. 8, 2010
7729679 Dynamic bandwidth filter for an FM receiver Jun. 1, 2010
7729434 System and method for improved channel estimation for wireless OFDM systems Jun. 1, 2010
7729429 Active replica transformer hybrid Jun. 1, 2010
7725088 Fast mode switching frequency synthesizing apparatus and method for operating in low power consumption May. 25, 2010
7724815 Method and apparatus for a programmably terminated receiver May. 25, 2010
7720185 Narrow-band interference canceller May. 18, 2010
7720140 Signal processing method, receiver and equalizing method in receiver May. 18, 2010
7715473 Channel equalizer, method and computer program for equalizing a channel May. 11, 2010
7711342 Signal adjustment techniques May. 4, 2010
7711077 System and method for high-speed decoding and ISI compensation in a multi-pair transceiver system May. 4, 2010
7706487 Method for training a transceiver for high speed communications Apr. 27, 2010
7706479 OFDM receiver Apr. 27, 2010
7702053 State based algorithm to minimize mean squared error Apr. 20, 2010
7698355 Minimal area integrated circuit implementation of a polyphase interpolation filter using coefficients symmetry Apr. 13, 2010
7697646 Discrete state-space filter and method for processing asynchronously sampled data Apr. 13, 2010
7697632 Low IF radio receiver Apr. 13, 2010
7697410 Centralized buffer architecture for an orthogonal frequency division multiplexing (OFDM) receiver Apr. 13, 2010
7693215 Blinder equalizer for QAM receivers Apr. 6, 2010
7693214 Receiving device and analog-to-digital conversion device Apr. 6, 2010
7688923 Enhanced data rate receiver Mar. 30, 2010
7688888 CIR estimating decision feedback equalizer with phase tracker Mar. 30, 2010
7688882 Time-tracking for clustered demodulation elements in a spread spectrum system Mar. 30, 2010
7684529 Interference rejection in wireless networks Mar. 23, 2010
7684528 Method for whitening colored noise in a communication system Mar. 23, 2010
7684481 High speed data packet access minimum mean squared equalization with direct matrix inversion training Mar. 23, 2010
7680222 Receiver and method of processing received data Mar. 16, 2010
7680195 COFDM demodulator with an optimal FFT analysis window positioning Mar. 16, 2010
7680180 Decision feedback equalization with composite trellis slicer Mar. 16, 2010
7676009 Method and circuit for equalizing and compensating IQ imbalance simultaneously Mar. 9, 2010
7675356 Digital controlled filter system and filtering method Mar. 9, 2010
7672412 Method and receiver for estimating the channel impulse response using a constant modulus interference removal iteration Mar. 2, 2010
7672411 Radio receiver Mar. 2, 2010
7672401 System and method for data communication over multi-input, multi-output channels Mar. 2, 2010
7668505 Radio having a MEMS preselect filter Feb. 23, 2010
7668274 Eye center retraining system and method Feb. 23, 2010
7668270 Method and system for programmable filtering offset Feb. 23, 2010

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