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. 14, 2010
Filed:
Feb. 06, 2008
Dirk Erickson, Austin, TX (US);
Robert A. Brondijk, Eindhoven, NL;
Jaconus Petrus Josephus Heemskerk, Eindhoven, NL;
Jakob G. Nijboer, Eindhoven, NL;
Christiaan Steenbergen, Austin, TX (US);
Charles R. Weirauch, Loveland, CO (US);
Dirk Erickson, Austin, TX (US);
Robert A. Brondijk, Eindhoven, NL;
Jaconus Petrus Josephus Heemskerk, Eindhoven, NL;
Jakob G. Nijboer, Eindhoven, NL;
Christiaan Steenbergen, Austin, TX (US);
Charles R. Weirauch, Loveland, CO (US);
Dell Products L.P., Round Rock, TX (US);
Abstract
Expiration information stored on an optical medium is applied to determine an expiration date of the optical medium that provides a predetermined reliability of information archived on the optical medium, such as a predetermined acceptable defect level of the information at the expiration date. An expiration engine associated with an information handling system or optical disc drive determines the expiration date from one or more factors, such as the manufacture date of read-only optical media, the initialization date of recordable optical media, a quality rating associated with a defect growth rate over time of the optical media, and a desired reliability. In one embodiment, the expiration engine writes expiration information to the optical media, such as a date stamp at initialization of a recordable optical medium. Alternatively, an expiration date is stored on an information handling system to provide expiration warnings a predetermined time before the expiration date.