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. 16, 1999
Filed:
Feb. 12, 1998
Toshiro Morimoto, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An optical disk driving apparatus comprises an optical pickup device having a laser beam source for emitting a laser beam to a disk recording medium, a unit for rotating the disk recording medium such that a linear velocity of a track on the recording medium accessed by the optical pickup device becomes a predetermined value, a unit for translating the optical pickup device along a radius of the disk recording medium in accordance with a seek signal indicative of the track to be accessed by the optical pickup device, and a unit responsive to the seek signal for controlling both the translating unit and the rotating unit, the translating means being prevented from translating the optical pickup device during a period until the linear velocity of the track desired by the seek signal on the disk recording medium reaches down to a value determined by the linear velocity of the desired track when the seek signal represents the order to transfer the optical pickup device from inner to outer tracks of the disk.