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:
Feb. 03, 2009
Filed:
Aug. 29, 2006
Haruo Yoshida, Kanagawa, JP;
Masaharu Murakami, Tokyo, JP;
Hiroshi Jinno, Tokyo, JP;
Mitsuhiro Hirabayashi, Tokyo, JP;
Makoto Yamada, Tokyo, JP;
Haruo Yoshida, Kanagawa, JP;
Masaharu Murakami, Tokyo, JP;
Hiroshi Jinno, Tokyo, JP;
Mitsuhiro Hirabayashi, Tokyo, JP;
Makoto Yamada, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A recording apparatus such as an optical disk and a file management method are disclosed by which, where an index file is formed from groups of data wherein extract information is collected for different types and one of the groups of data is used to collectively manage the other groups of data, a process relating to deletion or addition of extract information can be executed simply, easily, and with certainty. In each of slots of a property entry, information representing whether the slot is valid or invalid and information representative of a relationship to different slots to which extract information relating to the same file is allocated are recorded, and a combination of the slots in which the extract information of the one file is allocated is managed with the property entry.