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:
Apr. 07, 2009
Filed:
Sep. 29, 2005
Kazuhiro Muraoka, Yokohama, JP;
Yoshiyuki Seguchi, Yokohama, JP;
Kazuhiro Muraoka, Yokohama, JP;
Yoshiyuki Seguchi, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An IP network system includes an IP network divided into a plurality of segments, an MN (mobile node) whose a Care of address is set for each segment where it is located, and a CN (corresponding node) which is a communication partner of the MN. The IP network system further includes a Care of Address managing unit for managing at least an old Care of Address set in a segment before movement of the MN and a new Care of Address set in another segment after movement of the MN, a packet receiving unit receiving a packet addressed to the old Care of Address at least after the MN is relocated to the another segment, the packet being transmitted from the CN, and a packet transfer unit transferring the packet addressed to the old Care of Address to the new Care of Address managed by the Care of Address managing unit, the packet addressed to the old Care of Address being received by the packet receiving unit.