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:
Jan. 13, 2009
Filed:
Jan. 19, 2005
Migaku Ota, Yokohama, JP;
Hiroaki Miyata, Yokohama, JP;
Kengo Ijima, Yokohama, JP;
Koji Ikeda, Fujisawa, JP;
Daiki Nozue, Fujisawa, JP;
Migaku Ota, Yokohama, JP;
Hiroaki Miyata, Yokohama, JP;
Kengo Ijima, Yokohama, JP;
Koji Ikeda, Fujisawa, JP;
Daiki Nozue, Fujisawa, JP;
Hitachi Communication Technologies, Ltd., Tokyo, JP;
Abstract
An access network system connected to an ISP network including a subscriber authentication server comprised of a plurality of packet forwarding apparatuses each for connecting user terminals to an Internet network via the ISP network and an address pool management server having an address pool management table for holding, as a sub-address pool, a plurality of IP addresses usable over the ISP network. Each of the packet forwarding apparatuses acquires from the address pool management server an IP address to be allocated to the user terminal having requested connection to the Internet when the subscriber authentication server has succeeded in authentication of the user terminal.