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:
Mar. 21, 2000
Filed:
Sep. 17, 1997
Applicant:
Inventor:
Takao Ohmi, Kamakura, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 54 ; 369 50 ; 369 4432 ;
Abstract
An optical disk recording/reproducing device which records or reproduces recording information on or from an optical disk by use of optical head while the optical disk is chucked on a disk rotating mechanism and rotated and comprises a tilt detector for detecting a tilt angle of the optical disk which is being rotated, and a controller for determining whether the tilt angle detected by the detecting means is set within a permissible range or not, wherein the controller retries the chucking operation when the determining means determines that the tilt angle exceeds the permissible range.