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. 08, 2009
Filed:
Mar. 01, 2001
Akira Okubo, Tokyo, JP;
Hiroshi Matsuyama, Tokyo, JP;
Akira Okubo, Tokyo, JP;
Hiroshi Matsuyama, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
When receiving a packet sent thereto from a mobile terminal that is a sending source, a subscriber packet exchange apparatus encapsulates the packet with a multicast address without acquiring information on a routing area in which another mobile terminal that is a destination is currently located from a home location register, and routes the packet to another subscriber packet exchange apparatus that manages the routing area in which the destination mobile terminal is currently located. As a result, the moving object IP packet communication system can carry out the transmission of data packets between the source and destination mobile terminals while reducing the transfer delay.