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:
Dec. 01, 2015
Filed:
Apr. 30, 2012
Applicants:
Kevin D. Butt, Tucson, AZ (US);
Paul J. Seger, Tucson, AZ (US);
Inventors:
Kevin D. Butt, Tucson, AZ (US);
Paul J. Seger, Tucson, AZ (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/00 (2006.01); G06F 11/10 (2006.01); H03M 13/09 (2006.01); H03M 13/29 (2006.01); H03M 13/37 (2006.01); G11B 20/12 (2006.01); G11B 20/18 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1004 (2013.01); G11B 20/1201 (2013.01); G11B 20/1833 (2013.01); H03M 13/09 (2013.01); H03M 13/2909 (2013.01); H03M 13/3707 (2013.01); H03M 13/6511 (2013.01); H03M 13/6516 (2013.01); G11B 2020/1843 (2013.01); G11B 2220/90 (2013.01);
Abstract
A technique for providing end-to-end data protection while supporting multiple cyclic-redundancy-check (CRC) algorithms includes receiving a data block protected by a first CRC. The first CRC is generated using a first CRC algorithm. The integrity of the data block is checked using the first CRC and the first CRC algorithm. A second CRC for the data block is then computed using a second CRC algorithm different from the first CRC algorithm. The data block, first CRC, and second CRC are stored on a storage medium, such as magnetic tape.