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:
Sep. 01, 2009

Filed:

Jul. 15, 2005
Applicants:

Hidemitsu Higuchi, Ebina, JP;

Sunao Sawada, Yokohama, JP;

Shinji Nozaki, Yokohama, JP;

Kazuaki Tsuchiya, Ebina, JP;

Inventors:

Hidemitsu Higuchi, Ebina, JP;

Sunao Sawada, Yokohama, JP;

Shinji Nozaki, Yokohama, JP;

Kazuaki Tsuchiya, Ebina, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 3/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A multicast communication method for allowing a communication control apparatus for communicating in accordance with IPv4 to communicate with a communication control apparatus for communicating in accordance with IPv6. This method includes the steps of: when an IPv4 multicast packet is inputted, discriminating that this packet is a data packet on the basis of an IPv4 header; when it is determined that the packet is the data packet, converting the IPv4 header of the IPv4 multicast packet into an IPv6 header; generating an IPv6 multicast packet; and outputting the generated IPv6 multicast packet to a IPv6 network.


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