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:
Jul. 12, 2011
Filed:
Feb. 06, 2006
Toshihisa Nakano, Osaka, JP;
Hideshi Ishihara, Osaka, JP;
Kenji Muraki, Osaka, JP;
Masayuki Kozuka, Osaka, JP;
Toshihisa Nakano, Osaka, JP;
Hideshi Ishihara, Osaka, JP;
Kenji Muraki, Osaka, JP;
Masayuki Kozuka, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A recording device performs recording on a recording medium such as a DVD, and playback compatibility of the recording medium is increased. In circumstances such as when a standard is established after the manufacture of a playback apparatus, there are playback devices that physically cannot read information for decrypting encrypted data from a predetermined area of the recording medium due to the specifications of the playback apparatus, and therefore the playback apparatus cannot use the recording medium. In order for the recording medium to be able to be used in such a playback apparatus, the recording device reads data recorded in the predetermined area of the recording medium, and records the read data in another area that is readable by the playback apparatus.