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:
Mar. 18, 2008
Filed:
Dec. 20, 2000
Yoichiro Sako, Tokyo, JP;
Mario Tokoro, Tokyo, JP;
Tatsuya Inokuchi, Kangawa, JP;
Kaoru Kijima, Tokyo, JP;
Yoichiro Sako, Tokyo, JP;
Mario Tokoro, Tokyo, JP;
Tatsuya Inokuchi, Kangawa, JP;
Kaoru Kijima, Tokyo, JP;
Sony Corporation, , JP;
Abstract
A system for providing the right to use and reproduce contents data involving so-called electronic money, whereby when compressed and/or encrypted contents data is reproduced, a security for electronic money or an electronic use right is checked, if the electronic money or the electronic use right is invalid as a result of the security check, the reproduction of the contents data is stopped, and if the electronic money or the electronic use right is valid as a result of the security check, the contents data is reproduced and the electronic money or the electronic use right is consumed.