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. 05, 2013
Filed:
Mar. 27, 2006
Masayuki Kumazawa, Kanagawa, JP;
Taisuke Matsumoto, Kanagawa, JP;
Masayuki Kumazawa, Kanagawa, JP;
Taisuke Matsumoto, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a mobile network system composed of plural mobile networks and a home agent, the home agent inquires mobile routers in a mobile network whether or not a terminal is connected, if detecting the absence of the terminal, when data addressed to the terminal arrives at a home network of the terminal in the mobile network. Responding to this inquiry, the mobile routers search whether or not the terminal is connected to the own mobile networks. If the terminal is connected, the mobile routers inform the home agent of the presence of the terminal. When receiving this notice, the home agent transfers data addressed to this terminal to a mobile router as a notice source. This process, even if a terminal moves to a mobile network having a same network prefix as that of the home network, allows transferring a packet accurately to the terminal.