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:
Sep. 04, 2007
Filed:
Sep. 30, 2003
Applicant:
Takashi Kokubo, Ome, JP;
Inventor:
Takashi Kokubo, Ome, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In accordance with the present invention, a network relay device includes a first interface which is connected to a first network and sends contents information encrypted by key information, a second interface which is connected to a second network and sends the contents information to a receiving a network relay device, and a notification section which detects that the key information is changed and notifies a key change notification signal to the receiving network relay device.