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:
Oct. 16, 2001
Filed:
Jan. 20, 1999
Applicant:
Inventors:
Takahiro Magome, Tokyo, JP;
Yoshitaka Kon, Kawasaki, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/09 ;
U.S. Cl.
CPC ...
G11B 5/09 ;
Abstract
A disc discriminating device that can be realized in a comparatively simple structure to discriminate a disc in a short time, can be obtained. A playback apparatus is set in either the DVD process mode or the CD process mode. A disc is rotated at a constant linear velocity and the rotation frequency of a disc motor is detected by a control unit. The rotation frequency obtained when a DVD is loaded is lower than that when a CD is loaded.
Magome, Takahiro. (2001). Disc discriminating device in disc playback apparatus (U.S. Patent No. 6304535). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6304535
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile