Error correction device and error correction method

Details Error correction device and error correction method Error correction device and error correction method

2005-11-22

2005-11-22

Lamarre, Guy J. (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Error/fault detection technique

C714S746000

Reexamination Certificate

active

06968497

ABSTRACT:
The present invention is concerned with an error correction device and method for correcting errors in data items sent on a plurality of channels. An identification unit calculates an exclusive OR value for data items sent on the plurality of channels, and adopts the calculated value as data sent on a separate error correction channel. A signal quality detection unit detects the signal qualities concerning the plurality of channels. If the exclusive OR value is not equal zero, an identifying and processing unit replaces data on a channel whose signal quality is detected to be worst with an exclusive OR value for data items sent on channels other than the channel whose signal quality is worst.

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Ericson, et al. ‘Superimposed codes in the Hamming space,’ IEEE Transactions on Information Theory, Nov. 1994, vol.: 40 , Issue: 6, page(s): 1882-1893.
Saulnier, et al., “OFDM Spread Spectrum Communications Using Lapped Transforms and Interference Excision” Communications, 1997 IEEE XP010227242; ISBN: 0-7803-3925-8, pp. 944-948.

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