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Class Information
Number: 375/234
Name: Pulse or digital communications > Equalizers > Automatic > Adaptive > Fractionally spaced equalizer
Description: Subject matter wherein the delay line taps of the equalizer are spaced at an interval T which is less than, or a fraction of the symbol interval.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8711919 Systems and methods for adaptive blind mode equalization Apr. 29, 2014
8675722 Methods and apparatus for snapshot-based equalization of a communications channel Mar. 18, 2014
8634455 Symmetric leakage for adaptive finite-impulse-response filters Jan. 21, 2014
8599914 Feed forward equalization for highly-spectrally-efficient communications Dec. 3, 2013
8537884 Single path detection and equalizer optimization Sep. 17, 2013
8537885 Low-power down-sampled floating tap decision feedback equalization Sep. 17, 2013
8509299 Decision feedback equalizer operable with multiple data rates Aug. 13, 2013
8446942 Waveform equalization circuit and waveform equalization method May. 21, 2013
8446985 Method and system for reducing duty cycle distortion amplification in forwarded clocks May. 21, 2013
8442102 Chip equalization apparatus and method thereof May. 14, 2013
8442106 Floating-tap decision feedback equalizer for communication channels with severe reflection May. 14, 2013
8428111 Crosstalk emission management Apr. 23, 2013
8428112 Parameter control circuit Apr. 23, 2013
8401063 Decision feedback equalization scheme with minimum correction delay Mar. 19, 2013
8374290 Demodulating apparatus and demodulating method Feb. 12, 2013
8351496 Apparatus for filtering signals Jan. 8, 2013
8340170 Receiver and apparatus for receiving a data signal Dec. 25, 2012
8320440 Equalizer circuit Nov. 27, 2012
8284828 Monitoring instability and resetting an equalizer Oct. 9, 2012
8238413 Adaptive equalizer for high-speed serial data Aug. 7, 2012
8233522 Decision feedback equalizer for digital TV and method thereof Jul. 31, 2012
8208529 Equalization apparatus and method of compensating distorted signal and data receiving apparatus Jun. 26, 2012
8204164 Communications system using adaptive filter and selected adaptive filter taps Jun. 19, 2012
8175201 Systems and methods for adaptive equalization in recording channels May. 8, 2012
8175203 Broadcast channel estimator May. 8, 2012
8149950 Method and system for baseband predistortion linearization in multi-channel wideband communication systems Apr. 3, 2012
8144759 Adaptive methods employing optimal convergence factors for processing complex signals and systems Mar. 27, 2012
8135057 Reconfigurable chip level equalizer architecture Mar. 13, 2012
8126044 Passive system and method to equalize distortion in an RF satellite chain Feb. 28, 2012
8121183 System for an adaptive floating tap decision feedback equalizer Feb. 21, 2012
8121236 Communications system using adaptive filter circuit using parallel adaptive filters Feb. 21, 2012
8116366 Delayed decision feedback sequence estimator Feb. 14, 2012
8111740 Time-domain equalizer Feb. 7, 2012
8107522 Methods and apparatus for determining receiver filter coefficients for a plurality of phases Jan. 31, 2012
8107572 Communications system using adaptive filter for interference reduction Jan. 31, 2012
8102908 Waveform equalizing device Jan. 24, 2012
8102910 Re-adaption of equalizer parameter to center a sample point in a baud-rate clock and data recovery receiver Jan. 24, 2012
8098724 Automatic calibration in high-speed serial interface receiver circuitry Jan. 17, 2012
8094707 List-based detection in fading channels with long intersymbol interference Jan. 10, 2012
8081675 De-emphasizing cable equalizer Dec. 20, 2011
8077765 Mixed minimum mean square error/zero-forcing FIR filter adaptation Dec. 13, 2011
8064556 Fractionally-spaced equalizers for spread spectrum wireless communication Nov. 22, 2011
8064510 Analog encoder based slicer Nov. 22, 2011
8059707 Decoding method and apparatus Nov. 15, 2011
8050318 Compensation circuit and method for reducing intersymbol interference products caused by signal transmission via dispersive media Nov. 1, 2011
8050368 Nonlinear adaptive phase domain equalization for multilevel phase coded demodulators Nov. 1, 2011
8041226 Optical transceiver with equalizing function and a method to setup the optical transceiver Oct. 18, 2011
8040973 Transmitter including pre-distortion Oct. 18, 2011
8040943 Least mean square (LMS) engine for multilevel signal Oct. 18, 2011
8027279 Echo cancellation Sep. 27, 2011

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