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:
Jan. 31, 2012
Filed:
Oct. 03, 2001
Takeshi Natsuno, Tokyo, JP;
Takeshi Natsuno, Tokyo, JP;
NTT DoCoMo, Inc,, Tokyo, JP;
Abstract
A duplication/delivery center DDS records contents Cand Con a recording medium M in accordance with requests from content providing apparatuses CPand CP, duplicates the recording medium M, and delivers the recording medium M to users. When doing so, parts of the contents are encrypted. The content providing apparatuses CPand CPrequest a content control apparatus CCto control the contents on the recording media M. At the side of contents users, when a user sets a recording medium M in a video game console GM and tries to use a content that has been encrypted, the video game console GM requests, via a mobile packet communication network MPN, the content control apparatus CCto transmit a decryption key. The content control apparatus CCdecides whether or not to transmit the decryption key based on the content of the request received from the content providing apparatus.