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:
Feb. 07, 2017
Filed:
Aug. 24, 2011
Applicant:
Tetsuya Shigeeda, Tokyo, JP;
Inventor:
Tetsuya Shigeeda, Tokyo, JP;
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Chiyoda-Ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/933 (2013.01); H04L 12/28 (2006.01); H04L 12/741 (2013.01); H04L 12/46 (2006.01); H04L 12/931 (2013.01); H04L 12/18 (2006.01); H04L 12/40 (2006.01);
U.S. Cl.
CPC ...
H04L 49/15 (2013.01); H04L 12/1886 (2013.01); H04L 12/28 (2013.01); H04L 12/462 (2013.01); H04L 12/4625 (2013.01); H04L 45/74 (2013.01); H04L 49/201 (2013.01); H04L 2012/40293 (2013.01);
Abstract
To provide a network system including a network constructed by combining a plurality of switching devices. The network includes a first partial network including switching devices and a second partial network that is formed outside the first partial network and includes switching devices. The switching device in the first partial network connected to the second partial network blocks passage of a broadcast signal that is transmitted from a terminal device and that has a specific logical port number as transmission information at a physical port.