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. 17, 2009
Filed:
Jul. 07, 2004
Ken Igarashi, Yokohama, JP;
SO Ishida, Yokosuka, JP;
Harunobu Fukazawa, Yokohama, JP;
NTT DoCoMo, Inc, Tokyo, JP;
Abstract
A communication system () is provided with URs (to) and a source terminal (). The URs (to) include: entry holders (to) for holding forwarding addresses; message processors () for registering the addresses of other URs, the addresses being associated with a source terminal address and a multicast group address, in the entry holders (to) as the forwarding addresses; message providers () for providing the source terminal address with join request messages which request the addition of the addresses of the URs to sending addresses. The source terminal () includes: an entry holder () for holding a sending address; and a message processorfor registering the addresses of the URs (to) in the entry holderas sending addresses based on the join request messages.