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. 16, 2010
Filed:
Jan. 10, 2006
Kenji Toda, Tsukuba, JP;
Hiroyuki Yokoyama, Fujimino, JP;
Kenji Toda, Tsukuba, JP;
Hiroyuki Yokoyama, Fujimino, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
KDDI Corporation, Tokyo, JP;
Abstract
An electronic media communication apparatus is provided in which encryption keys and decryption algorithms are provided as circuits concealed in logic programmable devices. When the client requests delivery of electronic media, the server individually encrypts the electronic media and delivers the encrypted electronic media to the client. In the client, an electronic media specific circuit section uses logic circuit data received via a client data communication section to generate an electronic media specific logic circuit. Then, a logic circuit configuration section combines the logic circuit with a terminal specific circuit section uniquely implemented for the client to form an electronic media security circuit section. The original digital content can then be generated by inputting the encrypted electronic media stored in a storage unit to the electronic media security circuit section. Correct decryption is only possible when the electronic media specific circuit section and the terminal specific circuit section are used together in combination.