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. 29, 2007
Filed:
Oct. 11, 2005
Mikinori Matsuda, Kanagawa, JP;
Tokio Kanada, Kanagawa, JP;
Kazuhito Kurita, Kanagawa, JP;
Minoru Tobita, Tokyo, JP;
Akihiro Noda, Kanagawa, JP;
Yoshiro Arikawa, Tokyo, JP;
Shinichi Nakao, Kanagawa, JP;
Mikinori Matsuda, Kanagawa, JP;
Tokio Kanada, Kanagawa, JP;
Kazuhito Kurita, Kanagawa, JP;
Minoru Tobita, Tokyo, JP;
Akihiro Noda, Kanagawa, JP;
Yoshiro Arikawa, Tokyo, JP;
Shinichi Nakao, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A disc drive apparatus is provided which determines a recording medium enabling type and recordability for various types of discs. The discs are housed in a cartridge and each cartridge has at least a first and second detection hole formed therein. The second detection hole (H) is variably opened and closed by an opening/closing device, and the first detection hole (H) is in an open state at all times. The disc drive apparatus determines the disc type using a light signal reflected from the loaded recording medium. The disc drive apparatus also determines disc determining parameters (for example, recordability of a disc) based on information received about the disc type and the open/closed state of one or more detection holes formed in the cartridge.