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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:

Patent Number Title Of Patent Date Issued
8229039 Flexible rate matching Jul. 24, 2012
8229014 Fast fourier transform processing in an OFDM system Jul. 24, 2012
8229013 Methods and systems for maximum-likelihood detection using post-squaring compensation Jul. 24, 2012
8225168 Method and system for data transmission in a multiple input multiple output (MIMO) system Jul. 17, 2012
8223896 Soft bit value generation in a sequence estimator Jul. 17, 2012
8223895 Signal separating device and signal separating method Jul. 17, 2012
8223882 Joint constellation multiple access Jul. 17, 2012
8223870 Systems and methods for N-dimensional leaf-node prediction for MIMO detection Jul. 17, 2012
8223868 Method of determining a variable quantization step size for improving channel decoding, method and apparatus of performing channel decoding operation based on a variable quantization step size Jul. 17, 2012
8223867 Wireless communications with efficient channel coding Jul. 17, 2012
8223853 Method and apparatus for decoding data in a layered modulation system Jul. 17, 2012
8218698 Method for frequency offset estimation and automatic frequency control for filtered signal with destroyed phase information and signal transceiver Jul. 10, 2012
8218690 Timing offset compensation for high throughput channel estimation Jul. 10, 2012
8218671 Receiving apparatus, receiving method and communication system Jul. 10, 2012
8218665 Symbol time synchronization method for OFDM systems Jul. 10, 2012
8213549 Apparatus, computer program and method for determining a symbol estimate Jul. 3, 2012
8213525 Method of estimating and removing noise in OFDM systems Jul. 3, 2012
8213491 Adaptive ultrawideband receiver method Jul. 3, 2012
8213466 Robust digital communication system Jul. 3, 2012
8213465 Robust digital communication system Jul. 3, 2012
8213464 Robust digital communication system Jul. 3, 2012
8208566 Apparatus and method for transmitting/receiving feedback information in a multi-user MIMO system, and system thereof Jun. 26, 2012
8204160 Method and apparatus for generating soft bit values Jun. 19, 2012
8204140 Subscriber unit and method for variable forward error correction (FEC) decoding Jun. 19, 2012
8201047 Decoding apparatus and communications apparatus Jun. 12, 2012
8201045 System and method for trellis decoding in a multi-pair transceiver system Jun. 12, 2012
8199803 Receiver structure and method for the demodulation of a quadrature-modulated signal Jun. 12, 2012
8194801 Efficient decoding of spatially-multiplexed signals Jun. 5, 2012
8194799 Cyclic prefix-based enhanced data recovery method Jun. 5, 2012
8194781 Method and apparatus for transmitting and receiving control channel message in a MIMO mobile communication system Jun. 5, 2012
8194773 Apparatus and method for transmitting feedback information in communication system Jun. 5, 2012
8190980 Trellis-based decoder using states of reduced uncertainty May. 29, 2012
8190976 High-speed interface for holographic storage read channel May. 29, 2012
8189715 Receiver for receiving data symbols having a symbol period May. 29, 2012
8189705 Method and apparatus to perform equalization and decoding for a communication system May. 29, 2012
8189704 Method and apparatus for joint equalization and decoding of multilevel codes May. 29, 2012
8189696 Orthogonal frequency division multiplexing communication system, multi-hop system, relay station, and spatially layered transmission mode May. 29, 2012
8189674 Decoding method, program for decoding method, recording medium with recorded program for decoding method, and decoding device May. 29, 2012
8189649 Wireless communication apparatus May. 29, 2012
8185064 Adaptive modulation control system and wireless communication apparatus May. 22, 2012
8184750 Techniques for increasing decoding reliability in an adaptive minimum mean squared error with successive interference cancellation (MMSE/SIC) decoder May. 22, 2012
8184745 System and method of generating soft bits May. 22, 2012
8184739 Power series digital predistorter and control method therefor May. 22, 2012
8184726 Method and apparatus for multi-rate control in a multi-channel communication system May. 22, 2012
8184666 Robust digital communication system May. 22, 2012
8179986 Multicarrier modulation scheme as well as transmission apparatus and reception apparatus using the scheme May. 15, 2012
8175180 Pre-encoding and pre-decoding apparatuses and methods thereof May. 8, 2012
8170155 Method and apparatus for channel quality measurements May. 1, 2012
8170132 Method and apparatus for transmitting signals in a multiple antennas system May. 1, 2012
8170130 Transmission method and transmission system May. 1, 2012

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