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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
8711994 Methods for determining decoding order in a MIMO system with successive interference cancellation Apr. 29, 2014
8711993 Wideband multi-channel receiver with fixed-frequency notch filter for interference rejection Apr. 29, 2014
8711989 Method and apparatus for receiving signals in a MIMO system with multiple channel encoders Apr. 29, 2014
8711986 Advanced joint detection in a TD-SCDMA system Apr. 29, 2014
8711975 Tomlinson Harashima precoding with additional receiver processing in a multi-user multiple-input multiple-output wireless transmission system Apr. 29, 2014
8711918 Adaptive known signal canceller Apr. 29, 2014
8705675 Device and method for receiving RF signals based on heterodyne architecture using complex IF subsampling Apr. 22, 2014
8705657 Digital signal processing circuit for generating output signal according to non-overlapping clock signals and input bit streams and related wireless communication transmitters Apr. 22, 2014
8705649 Method and receiver structure for interference cancellation in co-ordinated multipoint systems Apr. 22, 2014
8694037 Method for improving radio performance in a simulcast environment using phase tilted filters Apr. 8, 2014
8693972 Down-conversion of multiple RF channels Apr. 8, 2014
8693608 Frequency synchronization using clock recovery loop with adaptive packet filtering Apr. 8, 2014
8693602 Method and device for mono- and multi-antenna reception for Alamouti-type links Apr. 8, 2014
8693601 Self-correcting multirate filter Apr. 8, 2014
8693581 Signal receiver with digital front end supporting multiple band and signal receiving method using the same Apr. 8, 2014
8693562 Method for receiving two decorrelated signals transmitted on a single channel and receiver for implementing said method Apr. 8, 2014
8687744 Method and system for an improved cellular diversity receiver Apr. 1, 2014
8687743 Methods and apparatus for detecting and decoding adaptive equalization training frames Apr. 1, 2014
8687682 Transmitter adaptation loop using adjustable gain and convergence detection Apr. 1, 2014
8681912 Method and apparatus for estimating channel using phase compensation in wireless communication system Mar. 25, 2014
8681890 Method and apparatus for real time multiplexing with receiver and antenna array elements Mar. 25, 2014
8681850 Signal processing apparatus, signal processing method and program Mar. 25, 2014
8681842 Transforming I/Q impairments through a linear system Mar. 25, 2014
8681598 Multi-user MIMO receiver and method for receiving data units over a wideband channel Mar. 25, 2014
8676144 Adaptive interference nulling for MIMO receiver based on interference characteristics Mar. 18, 2014
8675796 Interference cancellation under non-stationary conditions Mar. 18, 2014
8675792 Method of Doppler spread estimation Mar. 18, 2014
8675791 Method and an apparatus for deconvoluting a noisy measured signal obtained from a sensor device Mar. 18, 2014
8675782 Highly-spectrally-efficient receiver Mar. 18, 2014
8675717 Rate selection in a communication system Mar. 18, 2014
8670739 Frequency-translational bandpass filter with harmonic rejection Mar. 11, 2014
8670733 Multimode communication device with shared signal path programmable filter Mar. 11, 2014
8670507 Concatentation-assisted symbol-level combining for MIMO systems with HARQ and/or repetition coding Mar. 11, 2014
8670506 Apparatus and method for providing a reduced representation based on a time-domain RF signal Mar. 11, 2014
8670494 Apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal Mar. 11, 2014
8666005 Configurable adaptive filter Mar. 4, 2014
8666000 Reduced state sequence estimation with soft decision outputs Mar. 4, 2014
8665933 Data transmitting and receiving method and device for communication and system thereof Mar. 4, 2014
8665760 Method and arrangement for connecting an ad-hoc communication network to a permanent communication network Mar. 4, 2014
8660226 Systems and methods for multichannel noise reduction Feb. 25, 2014
8660219 Circuit and method for distinguishing between an OFDM signal and a radar signal Feb. 25, 2014
8660218 Systems and methods for signal detection and estimation Feb. 25, 2014
8655300 Detecting interference in wireless receiver Feb. 18, 2014
8655299 Saw-less receiver with RF frequency translated BPF Feb. 18, 2014
8654913 Equalisation processing Feb. 18, 2014
8654912 MIMO transmitter with pooled adaptive digital filtering Feb. 18, 2014
8654909 Semiconductor integrated circuit Feb. 18, 2014
8654906 Receiving device and method Feb. 18, 2014
8654831 Signal detection apparatus Feb. 18, 2014
8654821 Method and circuit for fractional rate pulse shaping Feb. 18, 2014

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