Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2005-05-31
2005-05-31
Ton, David (Department: 2133)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S777000
Reexamination Certificate
active
06901548
ABSTRACT:
To carry out error correction coding and decoding according to a serially concatenated coded modulation system with a small circuit scale and high performance. A coding apparatus1is designed so that an interleaver20interleaves order of bits so that all weights are coded by a convolutional coder30with respect to data comprising a series of 3 bits supplied from a convolutional coder10; the convolutional coder30makes as small as possible the total value of the hamming distance of input bit between passes to be the minimum Euclidean distance with respect to data of 3 bits supplied from the interleaver20; and a multi-value modulation mapping circuit40causes the hamming distance of input bits in the convolutional coder30as the distance between signal point on the I/Q plane is smaller to subject data of 3 bits supplied from the convolutional coder30to mapping.
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Hattori Masayuki
Miyauchi Toshiyuki
Murayama Jun
Yamamoto Kouhei
Yokokawa Takashi
Frommer William S.
Frommer & Lawrence & Haug LLP
Ton David
LandOfFree
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