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:
Sep. 03, 2002
Filed:
Feb. 15, 2000
Yasushi Saito, Chiba, JP;
Mitsuhiko Awata, Tokyo, JP;
Sony Corporation, , JP;
Abstract
An information recording/reproduction apparatus is adapted to quickly move the optical pickup to a desired position on the optical disk being used with it without emitting any sound of collision. The information recording/reproduction apparatus adapted to use an optical disk comprises an optical pickup supported by a lead screw so to move freely at least in a radial direction of the optical disk , a thread motor for driving the optical pickup to move by the distance specified by a drive signal in the radial direction of the optical disk , a position detecting switch for detecting the innermost movable limit of the optical pickup in the radial direction of the optical disk and a system controller for controlling the movement of the optical pickup by means of the drive signal applied to the thread motor , using the detected position as reference.