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:
May. 01, 2007
Filed:
Sep. 08, 2004
Michael James, Longmont, CO (US);
Michael James, Longmont, CO (US);
Fujitsu Limited, Kawasaki, JP;
Abstract
Data requested from a disk drive by a host is read continuously from sectors in tracks on a rotating disk and is temporarily stored in buffer memory within the disk drive. Before releasing the sectors for host access, each sector is checked for errors, and if errors are identified, error correction is attempted in a correction engine, using a selected error correction facility. If the errors are not corrected using the first selected correction facility, the bad sector is held in the buffer memory until the correction engine is idle. The correction engine is idle, for example, when good sectors (which have no errors) are read and are immediately released for host access. This idle time in the correction engine is used to attempt error correction using one or more different correction facilities. If the errors are corrected using the correction engine's idle time, it is not necessary to re-read the sector.