Error correction method and apparatus for headers

Details Error correction method and apparatus for headers Error correction method and apparatus for headers

Filed on

1995-03-28

Date issued

1997-02-04

Examiner

Baker, Stephen M.

Patent Class

Excavating

Other Related Categories

360 49, G11B 2018

Type

Patent

Status

active

Patent number

056006624

Description

ABSTRACT:
An error correction apparatus and method corrects an error burst occurring in the header information of a sector stored on a rotating magnetic storage medium, particularly sector identifying information. The apparatus (1000) comprises both a header correction subsystem (1060) for performing error correction upon the header information and a data correction subsystem (1075) for performing error correction upon the user data information. The header correction subsystem (1060) comprises a header correction unit (1250) which receives the header information from the medium and which generates an error pattern over the header information. A header register (1252) receives and stores the header information from the medium. The error pattern and the header information stored in the header register are used to obtain corrected header information.

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Chang et al., "Cyclic Memory Record Format Without Intrarecord Gaps", IBM Technical Disclosure Bulletin, vol. 19, No. 10, pp. 3890-3891, Mar. 1977.

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