Novel combination of error correction and error detection for transmitting digital data
AssigneeAS-International Association E.V.
InventorMatthias Breuninger
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Abstract
The invention relates to a method for transmitting digital data, in particular in automation technology, in which a digital code word (R) received via a channel is corrected and verified as to its validity by means of a channel decoder (7), and an invalid code word is rejected and optionally requested once again, while a valid code word (C″) is further processed. If a metric (8) is cumulatively used with an encoding process, the probability of remaining bit errors in the whole method can be significantly reduced, thus making it possible to use the method in automation technology.
Claims11
A process for transmitting digital data, in particular for automation technology, wherein a digital, noisy code word received via a channel is corrected and verified for validity by means of a channel decoder (7),
- wherein an invalid code word is rejected and the received, noisy code word (R) is optionally requested once more, while a valid code word (C″) is further processed,
- wherein a measure (Z) is obtained from said received, noisy code word (R) and said valid code word (C″) by means of metrics (8),
- wherein the valid code word (C″) is rejected and the received, noisy code word (R) is optionally requested once more, if said measure (Z) is as high as or higher than a predetermined threshold value (19).
Dependencies are inferred from the claim text.