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:
Mar. 16, 2010
Filed:
Apr. 14, 2005
Takeshi Kamura, Kawasaki, JP;
Naotaka Tsuji, Yokohama, JP;
Yoshiyuki Seguchi, Yokohama, JP;
Kazuhiro Muraoka, Yokohama, JP;
Hidetoshi Abeta, Yokohama, JP;
Hiraku Koganemaru, Yokohama, JP;
Zenichi Yashiro, Kawasaki, JP;
Hitoshi Koike, Kawasaki, JP;
Nobutsugu Fujino, Kawasaki, JP;
Fumiyuki Iizuka, Kawasaki, JP;
Itaru Nakagawa, Kawasaki, JP;
Keiichi Nakatsugawa, Kawasaki, JP;
Masahiko Fuse, Sapporo, JP;
Takeshi Kamura, Kawasaki, JP;
Naotaka Tsuji, Yokohama, JP;
Yoshiyuki Seguchi, Yokohama, JP;
Kazuhiro Muraoka, Yokohama, JP;
Hidetoshi Abeta, Yokohama, JP;
Hiraku Koganemaru, Yokohama, JP;
Zenichi Yashiro, Kawasaki, JP;
Hitoshi Koike, Kawasaki, JP;
Nobutsugu Fujino, Kawasaki, JP;
Fumiyuki Iizuka, Kawasaki, JP;
Itaru Nakagawa, Kawasaki, JP;
Keiichi Nakatsugawa, Kawasaki, JP;
Masahiko Fuse, Sapporo, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A mobile node is arranged to perform a high-quality hand-over operation for eliminating an interruption time in communication and keeping the continuance of communication excellent. The mobile node has a function of interfacing with networks and includes a network quality monitor, a hand-over controller, and a network controller. The network quality monitor operates to monitor a network quality based on at least one of an intensity and a radio bandwidth of a radio wave received by network devices. The hand-over controller performs the hand-over operation of transmitting a care of address to an address registering destination in response to a state of the network quality before a communication is disconnected, changing a route of communication information, and switching a connecting destination into a new network. The network controller receives a response that indicates an update of the care of address in the address registering destination and keeping a function of receiving data from the network before being switched until the communication is disconnected.