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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
7372921 Apparatus and method for channel encoding/decoding in a communication system May. 13, 2008
7370266 Digital signal decoding device and digital signal decoding method May. 6, 2008
7370265 Bandwidth efficient coded modulation scheme based on MLC (multi-level code) signals having multiple maps May. 6, 2008
7369615 Soft demodulation method and apparatus May. 6, 2008
7366246 Method to maximize receiver performance in a multi-stream system Apr. 29, 2008
7360147 Second stage SOVA detector Apr. 15, 2008
7359464 Trellis decoder and method of decoding Apr. 15, 2008
7359446 Methods and devices for decoding signals containing noise and distortion Apr. 15, 2008
7356097 Apparatus and method for detecting binary data Apr. 8, 2008
7349495 Soft bits normalization apparatus, method, and system Mar. 25, 2008
7349478 Ultra-wideband communication apparatus and methods Mar. 25, 2008
7349467 Data demodulation apparatus and method Mar. 25, 2008
7346836 E.sup.2PR4 viterbi detector and method for adding a branch metric to the path metric of the surviving path while selecting the surviving path Mar. 18, 2008
7346117 Turbo decoder Mar. 18, 2008
7340003 Multi-mode iterative detector Mar. 4, 2008
7340002 Pragmatic trellis code modulation decoder and a method thereof Mar. 4, 2008
7339500 Encoding method and decoding method Mar. 4, 2008
7336735 Viterbi decoder Feb. 26, 2008
7336715 Method for coded modulation taking account of the error sensitivity of the user data and encrypting said data after coding Feb. 26, 2008
7333572 Viterbi equalization using a table memory for provision of reconstructed signal values for the calculation of transition metrics Feb. 19, 2008
7333419 Method to improve performance and reduce complexity of turbo decoder Feb. 19, 2008
7327796 SOVA turbo decoder with decreased normalisation complexity Feb. 5, 2008
7327714 Apparatus and method for detecting a time division multiplexing frame in a mobile communication system Feb. 5, 2008
7324472 Transmission method Jan. 29, 2008
7321632 Method and apparatus for multi-algorithm detection Jan. 22, 2008
7319726 Soft-output decoding method and apparatus for controlled intersymbol interference channels Jan. 15, 2008
7317762 Third generation FDD modem interleaver Jan. 8, 2008
7317761 Multi-carrier communication system and receiver thereof Jan. 8, 2008
7313191 Receiver device of communication system Dec. 25, 2007
7308640 Low-latency architectures for high-throughput Viterbi decoders Dec. 11, 2007
7305055 Search-efficient MIMO trellis decoder Dec. 4, 2007
7302008 Apparatus and method for efficiently distributing energy over a packet data channel in a mobile communication system for high rate packet transmission Nov. 27, 2007
7298798 Method and system for decoding block codes Nov. 20, 2007
7295622 System and method for information decoding using batched processing of independent parameters Nov. 13, 2007
7293225 Method and arrangement for decoding using a trellis Nov. 6, 2007
7292658 Method and device for efficient decoding of symbols transmitted in a MIMO telecommunication system Nov. 6, 2007
7292650 OFDM receiver and metric generator thereof Nov. 6, 2007
7290927 Method and device for convolutive encoding and transmission by packets of a digital data series flow, and corresponding decoding method and device Nov. 6, 2007
7290200 E.sup.2PR4 viterbi detector and method for adding a branch metric to the path metric of the surviving path after selecting the surviving path Oct. 30, 2007
7283593 Distance determinations associated with a trellis decoder Oct. 16, 2007
7278089 System and method for error detection in encoded digital data Oct. 2, 2007
7278088 Configurable architecture and its implementation of viterbi decorder Oct. 2, 2007
7277515 Receiver for block code in near-minimum phase channel Oct. 2, 2007
7277498 Mapping method of code word with QAM modulation Oct. 2, 2007
7277472 Estimation method of flat fading channel in CDMA communication system and apparatus for the same Oct. 2, 2007
7274744 Multicarrier communication system and reception device for same Sep. 25, 2007
7272771 Noise and quality detector for use with turbo coded signals Sep. 18, 2007
7269227 Apparatus and method for calculating bit metrics in data receivers Sep. 11, 2007
7269226 Data processing method Sep. 11, 2007
7263652 Maximum likelihood detector and/or decoder Aug. 28, 2007

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