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. 27, 2001
Filed:
Apr. 29, 1999
Applicant:
Inventors:
Shin Kgami, Sendai, JP;
Yuichiro Tomishima, Tomiya, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/09 ;
U.S. Cl.
CPC ...
G11B 5/09 ;
Abstract
An eccentric disk detection apparatus for an optical disk device is provided. The eccentric disk detection apparatus detects eccentricity, as well as determines whether the eccentricity is high or low, by sensing and analyzing the reverse electromotive force. Upon detection of eccentricity, the eccentric disk detection apparatus can adjust the maximum number of revolutions of the disk in accordance to the sensed reverse electromotive force, thereby compensating for the eccentricity of the disk.
Kgami, Shin. (2001). Eccentric disk detection apparatus for an optical disk device (U.S. Patent No. 6324140). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6324140
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