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:
Mar. 21, 2017
Filed:
Mar. 23, 2016
International Business Machines Corporation, Armonk, NY (US);
Steven R. Bentley, Tucson, AZ (US);
Roy D. Cideciyan, Rueschlikon, CH;
Simeon Furrer, Altdorf, CH;
Kenji Ohtani, Fujisawa, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
In one embodiment, a computer-implemented method includes writing a data set to a first write section of a magnetic medium and rewriting at least some of the data set as rewritten CWI-sets to a rewrite section of the magnetic medium. The data set includes a plurality of sub data sets, each sub data set including a data array organized in rows and columns. Each row of the data array includes four interleaved C1 codewords (a CWI-). A first portion of the data set is stored as CWI-sets to the first write section of the magnetic medium with first headers. Each rewritten CWI-set is stored to the rewrite section of the magnetic medium as a number of rewritten CWI-s having corresponding rewrite headers. Also, a length of any one of the rewrite headers is greater than a length of any one of the first headers.