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. 01, 2001
Filed:
Sep. 03, 1997
Applicant:
Inventor:
Hiroyuki Fueki, Saitama-ken, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 ;
U.S. Cl.
CPC ...
G11B 7/00 ;
Abstract
A reading device is provided for reading information recorded on an optical disc. A relative displacement between the reading device and the optical disc is detected. The relative displacement is caused by rotating the disc at a speed higher than an ordinary speed. A maximum rotating speed of the optical disc at the time when the displacement reaches a predetermined value is detected. The optical disc is rotated at an angular velocity which does not exceed the maximum rotating speed.