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:
Feb. 26, 2008
Filed:
Mar. 21, 2001
Robert David Freeman, Erie, CO (US);
Thomas Edward Berg, Fort Collins, CO (US);
David William Niss, Boulder, CO (US);
Peter Jeffrey Raymond, Erie, CO (US);
Robert David Freeman, Erie, CO (US);
Thomas Edward Berg, Fort Collins, CO (US);
David William Niss, Boulder, CO (US);
Peter Jeffrey Raymond, Erie, CO (US);
DPHI Acquisitions, Inc., Longmont, CO (US);
Abstract
An apparatus for dynamically positioning a rotary actuator that positions an objective lens in three dimensions relative to the surface of an optical disk. A first voice coil motor positions the actuator generally in two dimensions parallel to the surface of the disk and a second voice coil motor positions the objective lens generally along an arcuate path orthogonal to the surface of the disk.