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Class Information
Number: 375/262
Name: Pulse or digital communications > Systems using alternating or pulsating current > Plural channels for transmission of a single pulse train > Quadrature amplitude modulation > Maximum likelihood decoder or viterbi decoder
Description: Subject matter for choosing an estimate code word for each possible received sequence of a demodulation output.










Patents under this class:
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Patent Number Title Of Patent Date Issued
7940852 Near optimal joint channel estimation and data detection for COFDM systems May. 10, 2011
7940850 Method for encoding frame data May. 10, 2011
7933365 Enhanced VSB Viterbi decoder Apr. 26, 2011
7929646 Map decoder with bidirectional sliding window architecture Apr. 19, 2011
7929614 Apparatus, medium, and method for processing neighbor information in video decoding Apr. 19, 2011
7929592 Channel estimation device and method, demodulation device and method, and fading frequency decision device and method Apr. 19, 2011
7929510 Method of scaling soft symbols of an uplink enhanced dedicated transport channel (E-DCH) and method for enabling use of a log-map turbo decoding algorithm for processing the E-DCH Apr. 19, 2011
7925964 High-throughput memory-efficient BI-SOVA decoder architecture Apr. 12, 2011
7924958 Apparatus and method for transmitting and receiving signals in a multi-antenna system Apr. 12, 2011
7924951 Methods and systems for digital wireless communication Apr. 12, 2011
7924933 Enhanced successive interference cancellation (SIC) receiver for multiple-input multiple-output (MIMO) systems Apr. 12, 2011
7924932 Decoding system and method for digital communications Apr. 12, 2011
7920657 Apparatus and method for decoding space-time block coded (STBC) signal Apr. 5, 2011
7920656 Searching method for maximum-likelihood (ML) detection Apr. 5, 2011
7917835 Memory system and method for use in trellis-based decoding Mar. 29, 2011
7916809 Digital receiver apparatus Mar. 29, 2011
7913153 Arithmetic circuit Mar. 22, 2011
7912155 Demodulator circuit Mar. 22, 2011
7912140 Reducing computational complexity in maximum likelihood MIMO OFDM decoder Mar. 22, 2011
7908545 Pipeline architecture for maximum a posteriori (MAP) decoders Mar. 15, 2011
7907688 Open loop MIMO receiver and method using hard decision feedback Mar. 15, 2011
7903752 Maximum likelihood decoder for pulse and amplitude position modulation multi-source system Mar. 8, 2011
7890980 Method for receiving broadcasting signal and broadcasting receiver Feb. 15, 2011
7890847 Apparatus and method for calculating error metrics in a digital communication system Feb. 15, 2011
7889103 Method and apparatus for low complexity combinatorial coding of signals Feb. 15, 2011
7886209 Decoding device, decoding method, and receiving apparatus Feb. 8, 2011
7885349 Data transmitting and receiving method using phase shift based precoding and transceiver supporting the same Feb. 8, 2011
7881394 Method and apparatus for computing soft decision input metrics to a turbo decoder Feb. 1, 2011
7876862 Conditionally input saturated Viterbi detector Jan. 25, 2011
7876847 Global minimum-based MLD demapping for soft-output MIMO detection Jan. 25, 2011
7876846 Method of QAM soft demapping Jan. 25, 2011
7869534 Method and apparatus for clock-pulse synchronization with an offset QPSK-modulated transmission signal Jan. 11, 2011
7864897 MIMO multiplexing communication system and a signal separation method Jan. 4, 2011
7864873 Method for spectral side lobe suppression in OFDM-based communication system Jan. 4, 2011
7860194 Method and apparatus for normalizing input metric to a channel decoder in a wireless communication system Dec. 28, 2010
7860181 Decoding apparatus and decoding method Dec. 28, 2010
7860172 Self clock generation structure for low power local clock buffering decoder Dec. 28, 2010
7859988 System for flexible cyclic prefix length for preamble symbols in an OFDM based communication system Dec. 28, 2010
7852962 Systems and methods for implementing a data control channel in a wireless communication system Dec. 14, 2010
7852960 Method of computing path metrics in a high-speed Viterbi detector and related apparatus thereof Dec. 14, 2010
7852954 Method of transmitting data and estimating channel information in OFDM/OFDMA mobile communications system Dec. 14, 2010
7848466 Viterbi slicer for turbo codes Dec. 7, 2010
7848440 Multi-channel communication method and apparatus using plural Markov Chain Monte Carlo simulations Dec. 7, 2010
7844003 Signal separating device and signal separating method Nov. 30, 2010
7839308 Using codewords in a wireless communication system Nov. 23, 2010
7835458 Method of decoding a spatially multiplexed signal and its corresponding receiver Nov. 16, 2010
7835387 Methods and systems for digitally processing data signals Nov. 16, 2010
7835246 Decoding apparatus and method Nov. 16, 2010
7830988 MIMO decoder and MIMO decoding method Nov. 9, 2010
7822138 Calculating apparatus and method for use in a maximum likelihood detector and/or decoder Oct. 26, 2010

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