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Browse by Category: Main > Communications
Class Information
Number: 375/263
Name: Pulse or digital communications > Systems using alternating or pulsating current > Plural channels for transmission of a single pulse train > Quadrature amplitude modulation > Partial response
Description: Subject matter where the binary data rate is above the Nyquist rate (equal to twice the transmission bandwidth, and commonly regarded as the upper limit on the rate of binary data transmission) thereby dispersing the individual input pulses over more than one signalling interval.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8665977 Multilevel cluster-based MIMO detection method and MIMO detector thereof Mar. 4, 2014
8666000 Reduced state sequence estimation with soft decision outputs Mar. 4, 2014
8638732 Apparatus and method for allocating resources using codebook in a broadband wireless communication system Jan. 28, 2014
8611440 Systems and methods for generating sequences that are nearest to a set of sequences with minimum average cross-correlation Dec. 17, 2013
8605832 Joint sequence estimation of symbol and phase with high tolerance of nonlinearity Dec. 10, 2013
8582682 Digital broadcasting transmission/reception devices capable of improving a receiving performance and signal processing method thereof Nov. 12, 2013
8565354 Digital broadcasting transmission/reception devices capable of improving a receiving performance and signal processing method thereof Oct. 22, 2013
8542765 Hierarchical coding with multiple antennas in a wireless communication system Sep. 24, 2013
8542780 Digital broadcasting transmission/reception devices capable of improving a receiving performance and signal processing method thereof Sep. 24, 2013
8526523 Highly-spectrally-efficient receiver Sep. 3, 2013
8514981 Digital broadcasting transmission/reception devices capable of improving a receiving performance and signal processing method thereof Aug. 20, 2013
8514682 Reproduction signal evaluation method, reproduction signal evaluation unit, and optical disk device adopting the same Aug. 20, 2013
8509348 Up-converted and amplified transmission signal using log-antilog Aug. 13, 2013
8483303 Digital broadcasting transmission/reception devices capable of improving a receiving performance and signal processing method thereof Jul. 9, 2013
8295378 Method and system for minimum mean squared error soft interference cancellation (MMSE-SIC) based suboptimal maximum likelihood (ML) detection for multiple input multiple output (MIMO) wireless Oct. 23, 2012
8213525 Method of estimating and removing noise in OFDM systems Jul. 3, 2012
8194762 Feedforward of non-quantized precoding weights in a wireless communications system Jun. 5, 2012
8159918 Reproduction signal evaluation method, reproduction signal evaluation unit, and optical disk device adopting the same Apr. 17, 2012
8111769 Transmissions with reduced code rate in 8VSB digital television Feb. 7, 2012
8064554 Radio communication system performing multi-carrier transmission, reception device, reception method, transmission device, transmission method, delay time calculation device, and delay time ca Nov. 22, 2011
7961797 Nonlinear viterbi complexity reduction Jun. 14, 2011
7860181 Decoding apparatus and decoding method Dec. 28, 2010
7852954 Method of transmitting data and estimating channel information in OFDM/OFDMA mobile communications system Dec. 14, 2010
7848396 Methods, algorithms, software, circuits, receivers, and systems for increasing bandwidth and/or recording density in data communication and data storage systems Dec. 7, 2010
7839310 Extended turbo interleavers for parallel turbo decoding Nov. 23, 2010
7839924 Partial response transmission system Nov. 23, 2010
7817740 Method and system for minimum mean squared error soft interference cancellation (MMSE-SIC) based suboptimal maximum likelihood (ML) detection for multiple input multiple output (MIMO) wireless Oct. 19, 2010
7801253 Nonlinear post-processors for channels with signal-dependent noise Sep. 21, 2010
7724838 Hierarchical coding with multiple antennas in a wireless communication system May. 25, 2010
7720166 System, method and device of decoding spatially multiplexed signals May. 18, 2010
7706460 QAM signal decoding Apr. 27, 2010
7656959 Pipelined decision-feedback unit in a reduced-state viterbi detector with local feedback Feb. 2, 2010
7644338 Method of detecting and correcting a prescribed set of error events based on error detecting code Jan. 5, 2010
7620882 Decoder and decoding method for decoding a code by selecting a path out of paths in a trellis diagram Nov. 17, 2009
7522678 Method and apparatus for a data-dependent noise predictive viterbi Apr. 21, 2009
7505515 Accurate timing alignments for decision directed continuous time equalizers Mar. 17, 2009
7505522 Spectral shaping in multiband OFDM transmitter with clipping Mar. 17, 2009
7440522 Method of evaluating a readout signal, and optical disc apparatus Oct. 21, 2008
7424074 Optimizing detector target polynomials in read/write channels to achieve best error rate performance in disk drives Sep. 9, 2008
7289568 Spectrum management apparatus, method, and system Oct. 30, 2007
7259929 Device and signal processing circuit for magnetic recording, magnetic recording apparatus Aug. 21, 2007
7257172 Signal processing device utilizing partial response maximum likelihood detection Aug. 14, 2007
7206351 Signal evaluation devices and signal evaluation methods, signal quality evaluation methods and reproducing devices and recording devices Apr. 17, 2007
7173961 Frequency domain partial response signaling with high spectral efficiency and low peak to average power ratio Feb. 6, 2007
7167518 Bandwidth-efficient modulation in communication systems Jan. 23, 2007
7050493 Bandwidth-efficient modulation in communication systems May. 23, 2006
6999503 Partial response signaling for orthogonal frequency division multiplexing Feb. 14, 2006
6973135 Reduced delay implementation of fourier transform based channelizers and de-channelizers Dec. 6, 2005
6836511 Apparatus for processing a reproduced digital signal Dec. 28, 2004
6788482 Method and apparatus for Viterbi detector state metric re-normalization Sep. 7, 2004

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