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:
May. 17, 1994
Filed:
Feb. 26, 1993
Shin'ichi Ohtsuka, Kawasaki, JP;
Yasuyuki Ozawa, Kawasaki, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
An optical disk drive includes a stationary optical system including a tracking mirror and a movable optical system including an objective lens, wherein the tracking mirror in the stationary optical system is supported movable along a circular path perpendicular to said optical disk, about a center of the circular path located on a hypothetical line that extends from the tracking mirror toward the movable optical system and further beyond the movable optical system. The center of the circular path is set at a distance twice as large as the distance from the tracking mirror to a reference point that is located below a data region defined on the optical disk for recording information.