The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2003
Filed:
Jan. 25, 2001
Stephen Morley, Bristol, GB;
Robert Williams, Bristol, GB;
Shinya Osaki, Kanagawa-ken, JP;
Mark Robert Watkins, Bristol, GB;
Toshiyuki Hirose, Tokyo, JP;
Other;
Abstract
In a digital data storage system providing two or more levels of interleaved Reed-Solomon error correction coding together with a track checksum, the track checksum is calculated according to an algorithm which has no correlation with the Reed-Solomon codeword generation rules. This allows miscorrections at the C correction level to be determined reliably thereby enhancing the correction rate. Also disclosed is a system which uses the enhanced ability to identify C miscorrections, to mark C miscorrections to the third level of error correction thereby allowing double error correct at the third level.