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. 20, 2012
Filed:
Aug. 03, 2010
Roy Daron Cideciyan, Rueschlikon, CH;
Thomas Mittelholzer, Zurich, CH;
Kenji Ohtani, Fujisawa, JP;
Paul J Seger, Tucson, AZ (US);
Keisuke Tanaka, Tokyo, JP;
Roy Daron Cideciyan, Rueschlikon, CH;
Thomas Mittelholzer, Zurich, CH;
Kenji Ohtani, Fujisawa, JP;
Paul J Seger, Tucson, AZ (US);
Keisuke Tanaka, Tokyo, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for physically laying out data on tape is disclosed herein. In one embodiment, such a method includes receiving a data set, wherein the data set includes S sub data sets (SDSs) of fixed size and each SDS includes N codeword interleaves (CWIs). The method further distributes the CWIs for the S SDSs across T tracks on a physical tape medium such that the distances between CWIs of the same SDS are substantially maximized on the physical tape medium. To maximize the distances, the method periodically rotates the tracks within the data set by a track rotation value R, wherein the number of tracks T is equal to 2, and the track rotation value R is equal to 2−1. A corresponding apparatus is also disclosed herein.