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:
Jan. 12, 2016
Filed:
Oct. 10, 2014
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Atsushi Abe, Tokyo, JP;
Yumiko Ohta, Kanagawa, JP;
Setsuko Masuda, Tokyo, JP;
Terue Watanabe, Tokyo, JP;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/02 (2006.01); G11B 5/09 (2006.01); G11B 5/008 (2006.01); G11B 20/12 (2006.01);
U.S. Cl.
CPC ...
G11B 5/00817 (2013.01); G11B 20/1201 (2013.01); G11B 20/1202 (2013.01); G11B 2020/1292 (2013.01);
Abstract
A method is provided for automatically reclaiming areas with unneeded data in a tape cartridge (medium) storing files updated by appended writing. In this reclamation method, the appended writing entails the sequential compression of data needed by the updated file (needed data) and data not needed by the file (unneeded data) and storage of the compressed data on the medium, and the medium is divided into at least three data partitions for the storage of data.