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. 27, 2007
Filed:
Mar. 12, 2001
Yoshihito Ishibashi, Tokyo, JP;
Shinako Matsuyama, Tokyo, JP;
Hideaki Watanabe, Chiba, JP;
Ichiro Futamura, Kanagawa, JP;
Masashi Kon, Kanagawa, JP;
Yoshihito Ishibashi, Tokyo, JP;
Shinako Matsuyama, Tokyo, JP;
Hideaki Watanabe, Chiba, JP;
Ichiro Futamura, Kanagawa, JP;
Masashi Kon, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A user device receives the content, and pays a content fee, based on the usage control policy of the content, by electronic money up to the allowable amount of money set in an issue log. The user device then creates a usage log including a content identifier and sends it to a service provider. The service provider creates a receive log based on the usage log, and sends it to a clearing center. The clearing center performs settlement processing for the electronic money based on the receive log, and sends a transfer request to an account management institution. By performing the above-described series of processing by using encrypted data, the settlement of the content usage fee is safely performed.