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. 12, 2000
Filed:
Apr. 06, 1998
Edward C Gage, Apple Valley, MN (US);
Nicholas Jordache, Eden Prairie, MN (US);
Ronald E Gerber, Richfield, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A disc drive for performing data operations relative to a disc includes a head positionable near the disc. The head is optically coupled to a light source by optics that direct a light beam from the light source to the head. The optics include a tracking position sensor that has first and second light detectors and a reflective surface. The first and second light detectors are capable of providing first and second electrical signals indicative of the amount of light incident on the respective light detectors. A third light detector is coupled to the optics and is receptive of light reflected from the disc.