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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:

Class Number Class Name Patents
375/350 By filtering (e.g., digital) 1,311
375/347 Diversity (frequency or time) 1,260
375/351 Gating, blanking, etc. 149
375/348 Intersymbol interference 469
375/349 Plural signal paths in receiver 744


Patents under this class:
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Patent Number Title Of Patent Date Issued
6904109 Interference cancellation method, and receiver Jun. 7, 2005
6900828 Fade resistant digital transmission and reception system May. 31, 2005
6901120 Method and apparatus for iterative parameter estimation May. 31, 2005
6901121 Compensation of DC offset impairment in a communications receiver May. 31, 2005
6901123 Multi-panel phased array antenna, employing combined baseband decision driven carrier demodulation May. 31, 2005
6898415 System and method for reducing multipath distortion in wireless distance measurement systems May. 24, 2005
6895040 Architecture for a digital subscriber line analog front end May. 17, 2005
6895045 Balancing amplitude and phase May. 17, 2005
6895541 Method and device for quantizing the input to soft decoders May. 17, 2005
6891792 Method for estimating time and frequency offset in an OFDM system May. 10, 2005
6892055 Radio station May. 10, 2005
6892060 Fully integrated self-tuned image rejection downconversion system May. 10, 2005
6885694 Correction of received signal and interference estimates Apr. 26, 2005
6885712 Methods and devices for minimizing interblock interference using an optimum time of reference Apr. 26, 2005
6882693 Digital signal receiver Apr. 19, 2005
6882694 Apparatus, and associated method, for estimating frequency offset of a data symbol communicated in a communication system Apr. 19, 2005
6882868 Cancellation system for frequency reuse in microwave communications Apr. 19, 2005
6882936 Integrated GPS/interference location system with anti-jam processor Apr. 19, 2005
6876694 Method and apparatus for decoding spread spectrum signal for CDMA Apr. 5, 2005
6868078 Base station spread spectrum CDMA subtractive interference canceller Mar. 15, 2005
6868129 Demodulator for a radio receiver and method of operation Mar. 15, 2005
6865219 Apparatus and method of circular group-wise parallel interference cancellation for multi-rate DS-CDMA system Mar. 8, 2005
6861901 Voltage follower circuit Mar. 1, 2005
6862440 Method and system for multiple channel wireless transmitter and receiver phase and amplitude calibration Mar. 1, 2005
6859505 Method, apparatus and system for use in determining pilot-to-data power ratio in wireless communication Feb. 22, 2005
6859506 Ultra wideband communication system, method, and device with low noise reception Feb. 22, 2005
6859507 Method and apparatus for correcting a signal Feb. 22, 2005
6856644 Method and apparatus for forward link power control bit generation in a spread-spectrum communication system Feb. 15, 2005
6853310 Tri-mode medical telemetry antenna system Feb. 8, 2005
6850552 Iterative precision spectrum analysis Feb. 1, 2005
6850936 Data extracting method, information processing apparatus, and recording medium Feb. 1, 2005
6845133 Method and device for processing signals of a digital transmission system Jan. 18, 2005
6842476 Co-channel interference canceller Jan. 11, 2005
6834073 System and method for baseband removal of narrowband interference in ultra wideband signals Dec. 21, 2004
6834109 Method and apparatus for mitigation of disturbers in communication systems Dec. 21, 2004
6831592 Near-vertical incidence HF radar Dec. 14, 2004
6831945 Method and apparatus for remote identification of transmission channel interference Dec. 14, 2004
6831954 Apparatus, and associated method, for compensating for distortion introduced upon a send signal by an amplifier Dec. 14, 2004
6832073 Apparatus and method for cancelling interference signals transmitted from neighbor base stations Dec. 14, 2004
6829314 Adapter for near end crosstalk and echo canceller for bi-directional digital communications Dec. 7, 2004
6826390 Receiver, transceiver circuit, signal transmission method, and signal transmission system Nov. 30, 2004
6826392 Multipath noise reduction method, multipath noise reducer, and FM receiver Nov. 30, 2004
6823005 Link adaptation in wireless networks for throughput maximization under retransmissions Nov. 23, 2004
6823022 Method for mitigating effects of interference in impulse radio communication Nov. 23, 2004
6819909 Based station apparatus and communication method Nov. 16, 2004
6816470 Method and apparatus for interference signal code power and noise variance estimation Nov. 9, 2004
6816712 Radio apparatus Nov. 9, 2004
6813308 CDMA receiver with parallel interference suppression and optimized synchronization Nov. 2, 2004
6807145 Diversity in orthogonal frequency division multiplexing systems Oct. 19, 2004
6801581 DC offset cancellation Oct. 5, 2004

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