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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
7822137 System and method for symbol rate estimation using vector velocity Oct. 26, 2010
7822109 Method and system for reconfigurable channel coding Oct. 26, 2010
7818653 Methods of soft-input soft-output decoding for nonvolatile memory Oct. 19, 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
7813438 Detector and method for estimating data probability in a multi-channel receiver Oct. 12, 2010
7809092 Method and system for UMTS HSDPA shared control channel processing Oct. 5, 2010
7809071 Wireless communication receiving device and wireless communication system Oct. 5, 2010
7809023 Communication system and method for sending isochronous streaming data within a frame segment using a signaling byte Oct. 5, 2010
7796702 Coded antenna switching for wireless communications and associated methods Sep. 14, 2010
7796701 Digital decoder for a digital wireless transmission system using a space-time linear code Sep. 14, 2010
7796700 Method and system for computing log-likelihood ratios for coded quadrature amplitude modulated signals Sep. 14, 2010
7792205 Encoding and decoding of frame control header in downlink subframes in wireless communication systems Sep. 7, 2010
7783963 Decoding a concatenated convolutional-encoded and block encoded signal Aug. 24, 2010
7782982 Adaptive deinterleaver memory allocation Aug. 24, 2010
7782573 Trellis-based feedback reduction for multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) with rate-limited feedback Aug. 24, 2010
7778372 Data delivery system and method, and receiver and transmitter Aug. 17, 2010
7778359 Method and device for clock synchronisation with a vestigial-sideband-modulated transmitted signal Aug. 17, 2010
7778336 Timing and frequency synchronization of OFDM signals for changing channel conditions Aug. 17, 2010
7773659 UWB MCSK/BPPM wireless communication system and method for increased information rate Aug. 10, 2010
7770094 Apparatus and method for soft decision viterbi decoding Aug. 3, 2010
7770092 Method for iterative decoding in a digital system and apparatus implementing the method Aug. 3, 2010
7769081 Transmission power control method for a wireless communication system Aug. 3, 2010
7764741 Modulation-type discrimination in a wireless communication network Jul. 27, 2010
7756711 Sampling rate conversion apparatus, encoding apparatus decoding apparatus and methods thereof Jul. 13, 2010
7756498 Channel estimator and method for changing IIR filter coefficient depending on moving speed of mobile communication terminal Jul. 13, 2010
7752531 Defect sensing Viterbi based detector Jul. 6, 2010
7752530 Apparatus and method for a collision-free parallel turbo decoder in a software-defined radio system Jul. 6, 2010
7752523 Reduced-complexity decoding of parity check codes Jul. 6, 2010
7751509 Method for multiple-access interference suppression for MC-CDMA by frequency domain oversampling Jul. 6, 2010
7751506 Method for the soft bit metric calculation with linear MIMO detection for LDPC codes Jul. 6, 2010
7751491 Code design method for repeat-zigzag Hadamard codes Jul. 6, 2010
7751472 Wireless communication apparatus, wireless communication method and computer program therefor Jul. 6, 2010
7746948 Wireless communication apparatus and wireless communication method Jun. 29, 2010
7742546 Receiver spatial processing for eigenmode transmission in a MIMO system Jun. 22, 2010
7738604 Modulation-type discrimination in a wireless local area network Jun. 15, 2010
7738603 Decision feedback equalizer and method used in digital television receiver Jun. 15, 2010
7738601 Coding and decoding packetized data Jun. 15, 2010
7738580 Quadrature amplitude modulation trellis coded modulation decoding apparatus and method thereof Jun. 15, 2010
7734992 Path memory circuit Jun. 8, 2010
7729550 Method for image compression coding Jun. 1, 2010
7724834 System and method for maximum likelihood decoding in multiple out wireless communication systems May. 25, 2010
7724636 Asymmetry compensator for partial response maximum likelihood (PRML) decoder May. 25, 2010
7721187 ACS (add compare select) implementation for radix-4 SOVA (soft-output viterbi algorithm) May. 18, 2010
7720166 System, method and device of decoding spatially multiplexed signals May. 18, 2010
7720136 Adaptive coding and modulation based on link performance prediction May. 18, 2010
7716564 Register exchange network for radix-4 SOVA (Soft-Output Viterbi Algorithm) May. 11, 2010
7715503 Parallel concatenated code with soft-in soft-out interactive turbo decoder May. 11, 2010
7711062 Decoding methods and apparatus for MIMO communication systems May. 4, 2010
7711059 Low noise inter-symbol and inter-carrier interference cancellation for multi-carrier modulation receivers May. 4, 2010
7706460 QAM signal decoding Apr. 27, 2010

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