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. 06, 2010
Filed:
Aug. 28, 2003
Hiroki Yamauchi, Ibaraki, JP;
Yuusaku Ohta, Neyagawa, JP;
Masaya Miyazaki, Ikeda, JP;
Natsume Matsuzaki, Mino, JP;
Toshihisa Abe, Izumisano, JP;
Hiroki Yamauchi, Ibaraki, JP;
Yuusaku Ohta, Neyagawa, JP;
Masaya Miyazaki, Ikeda, JP;
Natsume Matsuzaki, Mino, JP;
Toshihisa Abe, Izumisano, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A content management system formed from a playback apparatus that requests and plays content, and a content management apparatus that manages duplication and deletion of content. The playback apparatus notifies group information of the playback apparatus to the content management apparatus, acquires information from the content management apparatus showing whether requests are permitted, and duplicates/deletes content. By judging whether the playback apparatus belongs to a group, and notifying whether a duplication request is permitted or rejected, based on in-group and out-group remaining numbers that show the remaining number of duplications permitted of apparatuses in-group and out-group, respectively, the content management apparatus relaxes restrictions on in-group content duplication as compared with out-group content duplication, and thus improves convenience for users in a home network, while protecting the rights of copyright holders, with respect to content duplication and usage.