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. 07, 2000
Filed:
May. 09, 1997
Jeffrey J Dobbek, San Jose, CA (US);
Mantle Man-Hon Yu, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A data recording disk drive is provided with a reassignment architecture that employs both an 'in-line' approach for small disk defects and an 'off-site' reassignment for multiple-sector defects. As a further aspect of the invention, the defective sites that have been off-site reassigned are periodically reinspected to determine whether they in fact remain defective. If it is determined upon inspection that the defect is no longer present, the data in the off-site reassign area is returned to its original location, freeing spares for reuse. As a further aspect of the invention, reinspection is performed at disk drive spin-up or during idle periods.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile