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:
May. 05, 2009
Filed:
Jun. 28, 2004
Takeshi Saito, Meguro-ku, JP;
Hiroshi Isozaki, Kawasaki, JP;
Tatsuyuki Matsushita, Kawasaki, JP;
Taku Kato, Fuchuu, JP;
Tooru Kamibayashi, Chigasaki, JP;
Takeshi Saito, Meguro-ku, JP;
Hiroshi Isozaki, Kawasaki, JP;
Tatsuyuki Matsushita, Kawasaki, JP;
Taku Kato, Fuchuu, JP;
Tooru Kamibayashi, Chigasaki, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An aspect of the present invention provides an information communication device for transmitting electronic data encrypted for the purpose of copyright protection, the device includes that an identification information managing unit configured to hold device identification information in connection with other information communication devices acquired through a network, an ID registration processing unit configured to register the device identification information of another connection device when the other communication device satisfies a predetermined distance condition or when common identification information that is held by both information communication devices is received from a portable device, and an authentication and key exchange processing unit configured to, for the purpose of copyright protection, complete authentication and key exchange process (AKE process) only when another information communication device whose device identification information is registered in the identification information managing unit.