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:
Nov. 07, 2017
Filed:
Jun. 30, 2011
Applicants:
Tetsuya Shigeeda, Tokyo, JP;
Shingo Honda, Tokyo, JP;
Inventors:
Tetsuya Shigeeda, Tokyo, JP;
Shingo Honda, Tokyo, JP;
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Chiyoda-Ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/173 (2006.01); H04L 29/08 (2006.01); H04L 29/12 (2006.01); H04L 12/931 (2013.01); B61L 15/00 (2006.01);
U.S. Cl.
CPC ...
H04L 67/12 (2013.01); B61L 15/0036 (2013.01); B61L 15/0072 (2013.01); H04L 49/355 (2013.01); H04L 61/2015 (2013.01); H04L 61/2038 (2013.01);
Abstract
An IP-address distribution system according to the present invention includes a network formed by a plurality of switching devices, and a plurality of IP-address distribution devices connected to the network, wherein the switching devices are grouped into two or more groups, and the switching devices interrupt an IP-address request signal transmitted from a terminal that requests allocation of an IP address at a physical port to which a switching device in another group is connected.