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. 25, 2009
Filed:
Oct. 20, 2004
Applicants:
Takahiro Yoneda, Tokyo, JP;
Eiichi Muramoto, Kanagawa, JP;
Fumiaki Suzuki, Kyoto, JP;
Inventors:
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A packet distribution control method in the case of performing multicast communication in network environment where both networks that support IP multicast and that do not support IP multicast exist. In packet distribution in multicast communication, each end node checks mutually whether or not other end nodes are capable of communicating in IP multicast. Then, each end node uses IP unicast in packet distribution to other end nodes not capable of communicating only in IP multicast.