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Class Information
Number: 375/236
Name: Pulse or digital communications > Equalizers > Automatic > Adaptive > Accumulator or up/down counter
Description: Subject matter including either a device which stores a number and which, on receipt of another number, adds the two and stores the sum, or a counter with the capability of counting in an ascending or descending order.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8705606 Methods and circuits for adaptive equalization Apr. 22, 2014
8675777 Programmable if frequency filter for enabling a compromise between DC offset rejection and image rejection Mar. 18, 2014
8619578 Communications switching architecture Dec. 31, 2013
8559495 Equalizer adaptation Oct. 15, 2013
8472083 Intra prediction apparatus and intra prediction method using first blocks obtained by dividing a picture and second blocks obtained by dividing the first block Jun. 25, 2013
8472563 Signal processing apparatus, signal processing method and storage system Jun. 25, 2013
8325856 Coherent initial acquisition Dec. 4, 2012
8116366 Delayed decision feedback sequence estimator Feb. 14, 2012
8059707 Decoding method and apparatus Nov. 15, 2011
8050368 Nonlinear adaptive phase domain equalization for multilevel phase coded demodulators Nov. 1, 2011
8014444 System and method for DC offset, amplitude and phase imbalance correction for I and Q baseband calibration Sep. 6, 2011
7876866 Data subset selection algorithm for reducing data-pattern autocorrelations Jan. 25, 2011
7835434 Adaptive radio frequency (RF) filter Nov. 16, 2010
7817767 Processor-controlled clock-data recovery Oct. 19, 2010
7746924 Determination of filter weights Jun. 29, 2010
7746925 Decoding method and apparatus Jun. 29, 2010
7738546 Feed forward equalizer for a communication system Jun. 15, 2010
7711042 Signal processing device and method, and signal decoding device and method May. 4, 2010
7706436 Decision-feedback equalizer and method of updating filter coefficients Apr. 27, 2010
7627029 Margin test methods and circuits Dec. 1, 2009
7613238 Apparatus and method for decision error compensation in an adaptive equalizer Nov. 3, 2009
7596175 Methods and circuits for performing margining tests in the presence of a decision feedback equalizer Sep. 29, 2009
7593483 Nonlinear mapping in digital-to-analog and analog-to-digital converters Sep. 22, 2009
7590175 DFE margin test methods and circuits that decouple sample and feedback timing Sep. 15, 2009
7567642 Phase detector with extended linear operating range Jul. 28, 2009
7542508 Continuous-time decision feedback equalizer Jun. 2, 2009
7526019 Method and system for providing multi-channel multimode QAM equalization and carrier recovery Apr. 28, 2009
7526021 Telecommunications transmission systems Apr. 28, 2009
7508870 Method and apparatus for channel estimation in radio systems by MMSE-based recursive filtering Mar. 24, 2009
7505536 Energy dispersal circuit and receiver Mar. 17, 2009
7502411 Method and circuit for adaptive equalization of multiple signals in response to a control signal generated from one of the equalized signals Mar. 10, 2009
7463682 Coding method for binary digits coding and its circuit for digits transmission Dec. 9, 2008
7453932 Test device and setting method Nov. 18, 2008
7443909 Weighted autocorrelation method for downlink CDMA LMMSE equalizers Oct. 28, 2008
7433418 Method and apparatus for efficient storage of training sequences for peak to average power constrained modulation formats Oct. 7, 2008
7386240 Dispersion compensation in optical systems Jun. 10, 2008
7340657 On-chip high-speed serial data analyzers, systems, and associated methods Mar. 4, 2008
7130341 Feed forward equalizer controlled by FEC correction rates Oct. 31, 2006
6947481 Code enhanced equalization based upon a reliability factor Sep. 20, 2005
6940898 Adaptive coefficient signal generator for adaptive signal equalizers with fractionally-spaced feedback Sep. 6, 2005
6920333 Decision feedback equalizer with embedded coherent signal combiner Jul. 19, 2005
6738420 Digital filter having an upsampler operational at a fractional clock rate May. 18, 2004
6674795 System, device and method for time-domain equalizer training using an auto-regressive moving average model Jan. 6, 2004
6587504 Adaptive equalizer and designing method thereof Jul. 1, 2003
6549088 Frequency adjustable multipole resonant waveguide load structure Apr. 15, 2003
6498789 CDMA mobile communications device Dec. 24, 2002
6222876 Detecting valid data patterns for adapting equalization gain and offset for data transmissions Apr. 24, 2001
6167080 Control loop for adaptive equalization of a data signal Dec. 26, 2000
6047026 Method and apparatus for automatic equalization of very high frequency multilevel and baseband codes using a high speed analog decision feedback equalizer Apr. 4, 2000
5970094 Adaptive equalizer employing filter input circuit in a circular structure Oct. 19, 1999

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