Importance

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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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First Claim