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:
Nov. 25, 2014
Filed:
Mar. 27, 2014
Marvell International Ltd., Hamilton, BM;
Antonius Leonardus Johannes Dekker, Eindhoven, NL;
Marvell International Ltd., Hamilton, BM;
Abstract
A system for determining a cleanliness of a lens of an optical disc drive. The system includes a controller configured to control movement of the lens of the optical disc drive between a first position and a second position relative to the optical disc. The first position is located a first distance from an outer surface of the optical disc and corresponds to a position causing the lens to focus light on a data layer of the optical disc. The second position is located a second distance, different than the first distance, from the outer surface and corresponds to a position causing the lens to focus light on the outer surface. The controller is further configured to receive a measurement of light reflected by the optical disc while the lens is in the second position and determine the cleanliness of the lens based on the measurement of the light.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile