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:
Aug. 23, 2016
Filed:
May. 17, 2013
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Tomohiko Yagyu, Tokyo, JP;
Yui Ikuma, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 1/00 (2006.01); H04L 12/18 (2006.01); H04L 12/761 (2013.01); H04L 12/707 (2013.01); H04L 12/703 (2013.01);
U.S. Cl.
CPC ...
H04L 12/18 (2013.01); H04L 12/1868 (2013.01); H04L 45/16 (2013.01); H04L 45/24 (2013.01); H04L 45/28 (2013.01);
Abstract
Disclosed is a communication node device constituting a communication system performing multicast, which is characterized by that: when having forwarded data to a child node subordinate to it along a normal distribution path, it sets a retransmission timer also with respect to a child node on a redundant distribution path; and when having received data, it sends a reception confirmation message to both the parent node of the normal distribution path and a parent node of the redundant distribution path.