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, 2012
Filed:
Apr. 28, 2010
Takeyoshi Kataoka, Yokohama, JP;
Yoshinori Ishikawa, Yokohama, JP;
Yutaka Nagai, Yokohama, JP;
Kenji Akahoshi, Yokohama, JP;
Takakiyo Yasukawa, Fujisawa, JP;
Takeyoshi Kataoka, Yokohama, JP;
Yoshinori Ishikawa, Yokohama, JP;
Yutaka Nagai, Yokohama, JP;
Kenji Akahoshi, Yokohama, JP;
Takakiyo Yasukawa, Fujisawa, JP;
Hitachi-LG Data Storage, Inc., Tokyo, JP;
Hitachi Consumer Electronics Co., Ltd., Tokyo, JP;
Abstract
Where a hybrid disc has different types of media, the light spot moves among recording layers of the different media, after loading the disc into an optical disc apparatus, there is a problem that information on a media type of each recording layer should be recorded in DI etc. of the optical disc. Detailed information on the hybrid disc is stored in DI, by changing a disc layer type identifier or a disc structure in DI such as BCA or PIC on the optical disc.