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:
Nov. 16, 2004
Filed:
Jul. 03, 2000
Masato Sakamoto, Kawagoe, JP;
Atsushi Kusaka, Tendo, JP;
Other;
Abstract
A driving device for an optical storage medium, includes: an optical pickup for reading out information from an information track on the optical storage medium; a tracking error signal generator for generating a tracking error signal from the information read out by the optical pickup; a tracking controller for controlling the optical pickup to follow the information track on the optical storage medium based on the tracking error signal generated by the tracking error signal generator; a disturbance detector for detecting a magnitude of a disturbance of the tracking error signal caused by impediments existing on the optical storage medium; a correction signal generator for generating a correction signal corresponding to the magnitude of the disturbance of the tracking error signal detected by the disturbance detector; and a limiting unit for limiting an operation of the tracking controller in accordance with the correction signal generated by the correction signal generator.