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.

Date of Patent:
May. 24, 2016

Filed:

Feb. 26, 2014
Applicant:

Yokogawa Electric Corporation, Musashino-shi, Tokyo, JP;

Inventors:

Yukiyo Akisada, Musashino, JP;

Kazunori Miyazawa, Musashino, JP;

Yasuki Sakurai, Musashino, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/721 (2013.01); H04W 40/00 (2009.01); H04L 12/56 (2006.01); H04W 92/02 (2009.01);
U.S. Cl.
CPC ...
H04L 45/32 (2013.01); H04L 45/741 (2013.01); H04W 40/00 (2013.01); H04W 92/02 (2013.01);
Abstract

A packet forwarding device performs forwarding of a packet between first and second wireless communication networks to which different identifiers are attached, and includes: a relay network that is interposed between the first and second wireless communication networks; a first processing unit that is connected to the first wireless communication network and performs first routing control by using first routing information in which the first wireless communication network and the relay network are defined as outgoing interfaces; and a second processing unit that is connected to the second wireless communication network and performs second route control by using second routing information in which the second wireless communication network and the relay network are defined as outgoing interfaces.


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