New class of symmetric error correcting/unidirectional error detecting codes

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A new class of t-error correcting/all or d (d >t) unidirectional error-detecting (UED) code is developed. Such codes can correct symmetric errors in the information part of the codeword. When the added checkbits also have symmetric errors, the errors are detected. Furthermore, (t + 1) or more unidirectional errors can be detected by the t-IEC (information error correcting)/A-UED code, while unidirectional errors in (t + 1) or more but d or fewer bits can be detected by the t-IEC/d-UED code. By giving up the capability of correcting symmetric errors in the added checkbits a very substantial saving in the length of the codeword is obtained. Such codes can offer protection against transient as well as permanent faults.

Original languageEnglish (US)
Title of host publication1988 IEEE Int Conf Comput Des VLSI Comput Process ICCD 88 Proc
PublisherPubl by IEEE
Number of pages4
ISBN (Print)0818608722
StatePublished - Dec 1 1988

All Science Journal Classification (ASJC) codes

  • General Engineering

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