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:
Apr. 29, 2003
Filed:
Feb. 28, 2001
Kanji Ishihara, Tokorozawa, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
An apparatus for determining an information record medium is provided. The apparatus includes an emitting device, a light receiving device and a determining device. The emitting device respectively emits a plurality of light beams whose wave lengths are different from each other. Then, the light receiving device receives respective reflection lights from an information record medium of the emitted respective light beams, and outputs light reception signals respectively corresponding to the received reflection lights. After that, the determining device determines a type of the information record medium in accordance with a ratio between the outputted respective light reception signals.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile