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:
Jun. 23, 2009
Filed:
Feb. 04, 2005
Kevin L. Colbum, Greeley, CO (US);
D. Mitchel Hanks, Fort Collins, CO (US);
Lawrence N. Taugher, Loveland, CO (US);
Greg J. Lipinski, Loveland, CO (US);
Andrew L Van Brocklin, Corvallis, CO (US);
Kevin L. Colbum, Greeley, CO (US);
D. Mitchel Hanks, Fort Collins, CO (US);
Lawrence N. Taugher, Loveland, CO (US);
Greg J. Lipinski, Loveland, CO (US);
Andrew L Van Brocklin, Corvallis, CO (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A method of compensating for output variations in laser power output over time in a system using a laser to record visible marks on an optical disc, the method comprising (a) applying a test light beam from the laser to the optical disc to determine a test value of an optical parameter, (b) determining a difference between the test value and a predetermined reference value for the optical parameter, and (c) adjusting the laser power output to compensate for the difference.