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:
Sep. 29, 2009
Filed:
Nov. 25, 2003
Christiaan Steenbergen, Austin, TX (US);
Ed Beeman, Fort Collins, CO (US);
Dirk Erickson, Austin, TX (US);
Thomas L. Pratt, Austin, TX (US);
Charles Robert Weirauch, Loveland, CO (US);
Christiaan Steenbergen, Austin, TX (US);
Ed Beeman, Fort Collins, CO (US);
Dirk Erickson, Austin, TX (US);
Thomas L. Pratt, Austin, TX (US);
Charles Robert Weirauch, Loveland, CO (US);
Dell Products L.P., Round Rock, TX (US);
Abstract
Separate sets of optical medium identification information are embedded in separate aligned layers of the optical medium to allow an optical drive to initiate use of the optical medium with information from both layers. For instance, a first set of identification information is embedded in the data layer of the optical medium and a second set of identification information is embedded on the protective surface layer of the optical medium. The first and second sets of information align so that a mixed signal is provided when the optical medium is initially inserted in the optical drive with the optical drive reading the separate sets of information while the read head is at a single location.