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Class Information
Number: 375/265
Name: Pulse or digital communications > Systems using alternating or pulsating current > Plural channels for transmission of a single pulse train > Quadrature amplitude modulation > Trellis encoder or trellis decoder
Description: Subject matter for improving the noise immunity of digital transmission system without bandwidth expansion or reduction of data rate.

Patents under this class:

Patent Number Title Of Patent Date Issued
8711987 Method and receiver for jointly decoding received communication signals using maximum likelihood detection Apr. 29, 2014
8711960 Digital broadcasting system and method of processing data Apr. 29, 2014
8711956 Modified continuous phase modulation communications system and related methods Apr. 29, 2014
8707121 Forward error correction encoding/decoding method and apparatus, digital broadcasting reception apparatus, and decoding method thereof Apr. 22, 2014
8705669 Low-latency viterbi survivor memory architecture and method using register exchange, trace-back, and trace-forward Apr. 22, 2014
8705668 Calculation of soft values for uplink communication Apr. 22, 2014
8705666 Decoding for MIMO systems Apr. 22, 2014
8705590 Code generating apparatus, reference signal generating apparatus, and methods thereof Apr. 22, 2014
8694877 Max-log-map equivalence log likelihood ratio generation soft viterbi architecture system and method Apr. 8, 2014
8693507 Apparatus, systems, methods and computer program products for producing a single frequency network for ATSC mobile / handheld services Apr. 8, 2014
8681915 Method for transmitting synchronization messages in a communication network Mar. 25, 2014
8676128 Method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication system Mar. 18, 2014
8675791 Method and an apparatus for deconvoluting a noisy measured signal obtained from a sensor device Mar. 18, 2014
8675757 Digital television transmitting/receiving system and method of processing digital broadcast data in digital television transmitting/receiving system Mar. 18, 2014
8675755 Method and apparatus for jointly decoding independently encoded signals Mar. 18, 2014
8675717 Rate selection in a communication system Mar. 18, 2014
8670494 Apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal Mar. 11, 2014
8665996 Efficient parallel sub-packet decoding using multiple decoders Mar. 4, 2014
8665970 Method and arrangement related to blind detection Mar. 4, 2014
8665927 Acquisition method with improved multi-frequency correlation Mar. 4, 2014
8660550 Method and system for determining communication mode in a communication system Feb. 25, 2014
8660199 Method of demodulating a quadrature amplitude modulation signal and method of data communication Feb. 25, 2014
8660195 Using quantized prediction memory during fast recovery coding Feb. 25, 2014
8660167 Device and method for distortion-robust decoding Feb. 25, 2014
8660102 Method of exploitation of co-channel interference, apparatus and computer program Feb. 25, 2014
8659394 RFID tag and method receiving RFID tag signal Feb. 25, 2014
8654873 Method to invoke channel decoder early to decrease the acquisition time in demodulators Feb. 18, 2014
8654832 Apparatus and method for coding and modulation Feb. 18, 2014
8644432 Viterbi decoder for decoding convolutionally encoded data stream Feb. 4, 2014
8644431 Parallel execution of trellis-based methods Feb. 4, 2014
8644406 Apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal Feb. 4, 2014
8644405 Trellis modulation protocols for a VDSL system Feb. 4, 2014
8638886 Parallel viterbi decoder with end-state information passing Jan. 28, 2014
8638885 Space-time decoder and methods for decoding alamouti-encoded signals in high-doppler environments Jan. 28, 2014
8638867 Methods and apparatus for compensating for propagation delays in coordinated multi-point transmission Jan. 28, 2014
8630375 Method and apparatus for received signal processing in a multi-stage receiver Jan. 14, 2014
8630364 Termination techniques for multi-index continuous phase encoders for wireless networks Jan. 14, 2014
8630363 Single-carrier block transmission with trellis coded modulation (TCM), multi-level coded modulation (MLCM) and bit-interleaved MLCM (BIMLCM) Jan. 14, 2014
8619921 Channel estimation apparatus, channel estimation method and program Dec. 31, 2013
8619900 Digital broadcast transmitting and receiving system having an improved receiving performance and signal processing method thereof Dec. 31, 2013
8619895 Apparatus and method for transmitting/receiving broadcast data in digital broadcasting system Dec. 31, 2013
8619884 Communication channel estimation Dec. 31, 2013
8612837 BM/LLR computations for multi-dimensional TCM/BCM codes Dec. 17, 2013
8611485 Method and a device for controlling frequency synchronization Dec. 17, 2013
8605821 Apparatus and method for scrambling in a wireless communication system Dec. 10, 2013
8594227 Measurement of system time delay Nov. 26, 2013
8594217 Parallel implementation of maximum a posteriori probability decoder Nov. 26, 2013
8594207 Method and apparatus for providing channel quality feedback in an orthogonal frequency division multiplexing communication system Nov. 26, 2013
8582685 Apparatus and method for encoding a signal Nov. 12, 2013
8582682 Digital broadcasting transmission/reception devices capable of improving a receiving performance and signal processing method thereof Nov. 12, 2013

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