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:
Nov. 15, 2011
Filed:
Sep. 29, 2008
Hiroshi Ueda, Osaka, JP;
Yoshiho Gotoh, Osaka, JP;
Yoshihisa Fukushima, Osaka, JP;
Motoshi Ito, Osaka, JP;
Shinji Sasaki, Osaka, JP;
Hiroshi Ueda, Osaka, JP;
Yoshiho Gotoh, Osaka, JP;
Yoshihisa Fukushima, Osaka, JP;
Motoshi Ito, Osaka, JP;
Shinji Sasaki, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In an information recording medium for recording and reproducing data thereon on a sector-by-sector basis, the recorded data being managed as at least one file by using a file structure, the file structure includes unused space management information for identifying a used region and an unused region. At least one defective region is registered as an unused region in the unused space management information, the at least one defective region being a region on the information recording medium which is incapable of proper reproduction of the recorded data.