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:
Nov. 02, 2010
Filed:
Jul. 14, 2003
Hiromichi Ito, Yokohama, JP;
Hiromichi Ito, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Even if a third party intercepts a packet flowing on the Internet, it is made difficult to identify which information processing apparatuses are performing communication with each other. In a communication system, there is provided a virtual address server for pooling a plurality of for-rent-out virtual global addresses to be temporarily used by a communication apparatus. When a first information processing apparatus performs communication with a second information processing apparatus, the first information processing apparatus requests the virtual address server to rent out a virtual global address. Next, based on this request, the virtual address server rents out this virtual global address. Moreover, the first information processing apparatus sends out a communication packet whose transmission-source address is set up by this virtual global address and whose transmission-destination address is set up by the global address of the second information processing apparatus.