longitudinal parity

longitudinal parity

[‚län·jə′tüd·ən·əl ′par·əd·ē]
(communications)
Parity associated with bits recorded on one track in a data block, to indicate whether the number of recorded bits in the block is even or odd.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

longitudinal parity

(storage, communications)
An extra byte (or word) appended to a block of data in order to reveal corruption of the data. Bit n of this byte indicates whether there was an even or odd number of "1" bits in bit position n of the bytes in the block. The parity byte is computed by XORing the data bytes in the block. Longitudinal parity allows single bit errors to be detected.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in periodicals archive ?
Information on the number of blocks for transmission, the size of each block, the number of each block transmitted, an integrity check for each data point (parity bit), an integrity check for each block (longitudinal parity check and check sum, and an integrity check for the entire file are all appropriate.

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