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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
8300713 Preamble sequence detection and integral carrier frequency offset estimation method for OFDM/OFDMA wireless communication system Oct. 30, 2012
8296624 Variable interleave data transmission Oct. 23, 2012
8295409 Signal modulation classification device using distributed sensors Oct. 23, 2012
8295379 System and method for non-uniform bit allocation in the quantization of channel state vectors Oct. 23, 2012
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
8295335 Techniques to control uplink power Oct. 23, 2012
8290097 Multi-channel sequential Viterbi decoder Oct. 16, 2012
8290095 Viterbi pack instruction Oct. 16, 2012
8290078 System and method performing quadrature amplitude modulation by combining co-sets and strongly coded co-set identifiers Oct. 16, 2012
8290035 Systems for reducing adverse effects of deep fades in DTV signals designed for mobile reception Oct. 16, 2012
8284873 Wireless communication receiver having de-interlever and related signal processing method thereof Oct. 9, 2012
8284869 QAM demodulation Oct. 9, 2012
8279986 Digital receiver, controlling method of the apparatus, computer program product, and recording medium recording thereon the product Oct. 2, 2012
8279979 Signal processing apparatus, signal processing method, and program Oct. 2, 2012
8279977 MIMO signal detector, a method of detecting MIMO signals and a MIMO receiver Oct. 2, 2012
8279974 Dynamic power reduction in a wireless receiver Oct. 2, 2012
8279954 Adaptive forward-backward soft output M-algorithm receiver structures Oct. 2, 2012
8275086 Frequency synchronization apparatus Sep. 25, 2012
8275082 Method and system for delay locked loop for rake receiver Sep. 25, 2012
8275077 Coherent demodulation of ais-GMSK signals in co-channel Sep. 25, 2012
8270544 Combining soft decisions in a weather band radio Sep. 18, 2012
8270543 Scaling and quantization of soft decoding metrics Sep. 18, 2012
8270515 Providing feedback in a MIMO system Sep. 18, 2012
8270508 Apparatus and method for communication in variable bands Sep. 18, 2012
8270503 Digital radio mondiale receiver integer carrier frequency offset estimation Sep. 18, 2012
8270502 Timing-frequency offset and carrier-frequency offset estimations for multi-carrier modulated signals using pilot tones Sep. 18, 2012
8265204 Decoding device and method for MIMO system Sep. 11, 2012
8261171 Systems and methods for diversity combined data detection Sep. 4, 2012
8259875 Technique for determining a frequency offset Sep. 4, 2012
8259867 Methods and systems for turbo decoding in a wireless communication system Sep. 4, 2012
8259866 Decoding scheme using A-priori information about transmitted messages Sep. 4, 2012
8259833 Method and arrangement relating to radio signal transmissions Sep. 4, 2012
8254997 Apparatus and method for 4-beamforming using radio units having two paths in wireless communication system Aug. 28, 2012
8254502 Post decoding soft interference cancellation Aug. 28, 2012
8254484 Method of dirty paper coding using nested lattice codes Aug. 28, 2012
8250431 Systems and methods for phase dependent data detection in iterative decoding Aug. 21, 2012
8249138 Symbol analyzing device, symbol analyzing method, and information storage medium Aug. 21, 2012
8243843 Systems and methods for low-complexity MIMO detection using leaf-node prediction via look-up tables Aug. 14, 2012
8243834 Wireless communication device Aug. 14, 2012
8239726 Apparatuses and methods for encoding and decoding Aug. 7, 2012
8238488 Multi-stream maximum-likelihood demodulation based on bitwise constellation partitioning Aug. 7, 2012
8238487 Log-likelihood ratio algorithm for use in reducing co-channel interference in wireless communication systems Aug. 7, 2012
8238484 Digital transmission and reception devices for transmitting and receiving streams, and processing methods thereof Aug. 7, 2012
8238469 Calibration in a radio frequency transmission module Aug. 7, 2012
8238461 Apparatus for generating precoding matrix codebook for MIMO system and method of the same Aug. 7, 2012
8238460 Method and system for retransmitting data packets Aug. 7, 2012
8238459 Decoding device and method, receiving device and method, and program Aug. 7, 2012
8238381 Robust digital communication system Aug. 7, 2012
8230310 Method and apparatus for received signal processing in a wireless communication receiver Jul. 24, 2012
8229040 Feedforward receiver and method for reducing inter-symbol interference by using joint soft values Jul. 24, 2012

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