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Class Information
Number: 375/229
Name: Pulse or digital communications > Equalizers
Description: Subject matter including a delay line tapped at the pulse or discrete step interval; a set of adjustable attenuators connected to each tap, except for a main tap, which attenuators can be used to multiply remaining tap signals by any number between 1 and minus 1; and a summing network.

Sub-classes under this class:

Class Number Class Name Patents
375/230 Automatic 524

Patents under this class:

Patent Number Title Of Patent Date Issued
8712336 Data unit receiver and sender control method Apr. 29, 2014
8711988 Method and apparatus for generating soft bit values in reduced-state equalizers Apr. 29, 2014
8711964 Method and apparatus for pre-scheduling in closed-loop MU-MIMO antenna system Apr. 29, 2014
8711922 Partial response decision feedback equalizer with distributed control Apr. 29, 2014
8711919 Systems and methods for adaptive blind mode equalization Apr. 29, 2014
8711917 Sampling filter device Apr. 29, 2014
8711916 Tap initialization of equalizer based on estimated channel impulse response Apr. 29, 2014
8711906 Tracking data eye operating margin for steady state adaptation Apr. 29, 2014
8705603 Adaptive data recovery system with input signal equalization Apr. 22, 2014
8705602 Equalizer circuitry with selectable tap positions and coefficients Apr. 22, 2014
8693898 Adaptive equalizer, optical receiver, and tap coefficient correcting method Apr. 8, 2014
8693882 Electronic dispersion compensation systems and methods Apr. 8, 2014
8693562 Method for receiving two decorrelated signals transmitted on a single channel and receiver for implementing said method Apr. 8, 2014
8693532 Communications with adaptive equalization Apr. 8, 2014
8693530 Modulation analysis and distortion identification Apr. 8, 2014
8687743 Methods and apparatus for detecting and decoding adaptive equalization training frames Apr. 1, 2014
8687478 Method and apparatus for band separation for multiband communication systems Apr. 1, 2014
8681851 Adaptive filter Mar. 25, 2014
8681848 Linear system for link training Mar. 25, 2014
8681847 Apparatus and method for equalizing channel based on channel estimation Mar. 25, 2014
8675724 Decision feedback equalizers and operating methods thereof Mar. 18, 2014
8675723 Apparatus and methods for processing a vestigial sideband signal using a sectionalizing adaptive equalizer Mar. 18, 2014
8675722 Methods and apparatus for snapshot-based equalization of a communications channel Mar. 18, 2014
8670507 Concatentation-assisted symbol-level combining for MIMO systems with HARQ and/or repetition coding Mar. 11, 2014
8666005 Configurable adaptive filter Mar. 4, 2014
8665941 Decision feedback equalizer for highly spectrally efficient communications Mar. 4, 2014
8665940 Adaptive equalization using correlation of edge samples with data patterns Mar. 4, 2014
8660200 Dual-pass joint channel estimation and data demodulation for OFDM systems Feb. 25, 2014
8660171 Method and apparatus for timing jitter measurement Feb. 25, 2014
8654913 Equalisation processing Feb. 18, 2014
8654909 Semiconductor integrated circuit Feb. 18, 2014
8654904 Scaling equalizer coefficients after automatic gain controller gain adjustments Feb. 18, 2014
8654898 Digital equalizer for high-speed serial communications Feb. 18, 2014
8654830 Systems, circuits and methods for adapting parameters of a linear equalizer in a receiver Feb. 18, 2014
8654829 Selectable-tap equalizer Feb. 18, 2014
8649476 Adjusting sampling phase in a baud-rate CDR using timing skew Feb. 11, 2014
8649467 Multi-symbol channel estimation method for estimating channel response in a multi-carrier modulation system Feb. 11, 2014
8644371 Transmitter control in communication systems Feb. 4, 2014
8644370 Providing slope values for a demapper Feb. 4, 2014
8638895 Extension of Ethernet PHY to channels with bridged tap wires Jan. 28, 2014
8638842 Equalization device, equalization method, and program Jan. 28, 2014
8634455 Symmetric leakage for adaptive finite-impulse-response filters Jan. 21, 2014
8634453 Frame and carrier synchronization for unbursted packetized transmissions using constant-amplitude continuous-phase frequency-modulation Jan. 21, 2014
8634452 Multiphase receiver with equalization circuitry Jan. 21, 2014
8630336 Partial response receiver and related method Jan. 14, 2014
8630329 High-speed sampling and low-precision quantification pulse ultra-wideband wireless communication method Jan. 14, 2014
8625658 Digital repeater having bandpass filtering, adaptive pre-equalization and suppression of natural oscillation Jan. 7, 2014
8619884 Communication channel estimation Dec. 31, 2013
8619848 Method, apparatus, and system to compensate inter-symbol interference Dec. 31, 2013
8619847 Reconditioning equalizer filter for non-constant envelop signals Dec. 31, 2013

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