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. 04, 2009
Filed:
Sep. 24, 2004
Tomonori Gotoh, Kawasaki, JP;
Katsumi Tanaka, Kawasaki, JP;
Kenzo Kobayashi, Kawasaki, JP;
Hiroto Shingai, Kawasaki, JP;
Noboru Matsubara, Kawasaki, JP;
Kazuyoshi Yamauchi, Kawasaki, JP;
Yasutaka Umemoto, Yokohama, JP;
Kazuyuki Inomoto, Yokohama, JP;
Tomonori Gotoh, Kawasaki, JP;
Katsumi Tanaka, Kawasaki, JP;
Kenzo Kobayashi, Kawasaki, JP;
Hiroto Shingai, Kawasaki, JP;
Noboru Matsubara, Kawasaki, JP;
Kazuyoshi Yamauchi, Kawasaki, JP;
Yasutaka Umemoto, Yokohama, JP;
Kazuyuki Inomoto, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A multicast network system is provided with a multicast network unit that delivers data between independent multicast network domains. The multicast network unit includes an extraction part for extracting a multicast delivery destination address from received data, a holder part for holding conversion data where the multicast delivery destination address corresponds to a delivery source address, and a judgment part for judging whether the multicast delivery destination address is held and outputting the result of a judgment. The multicast network unit also includes a filtering part which, when the result of the judgment is holding, converts the multicast delivery source address to an arbitrary delivery destination address and, when it is non-holding, discards the received data. The multicast network unit further includes a transmitter part for transmitting data containing the converted multicast address to the domain.