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Patent Searching and Data


Title:
GATEWAY AND DISTRIBUTED SYSTEM USING THE GATEWAY
Document Type and Number:
WIPO Patent Application WO/2001/045329
Kind Code:
A1
Abstract:
A gateway and distributed system for efficiently connecting a network which periodically hold communication to a network which hold communication in an event-driven way. A gateway for connecting different networks together receives a periodical message, sends, when a change of the received periodical message is detected, the periodical message as an event message, receives an event message, and sends periodically messages.

Inventors:
YOKOYAMA TAKANORI (JP)
NAGAURA WATARU (JP)
Application Number:
PCT/JP1999/007042
Publication Date:
June 21, 2001
Filing Date:
December 15, 1999
Export Citation:
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Assignee:
HITACHI LTD (JP)
YOKOYAMA TAKANORI (JP)
NAGAURA WATARU (JP)
International Classes:
H04L12/24; H04L12/28; H04L12/40; H04L12/66; (IPC1-7): H04L12/28
Domestic Patent References:
WO1997024842A21997-07-10
Foreign References:
JPH11338837A1999-12-10
JPH1124710A1999-01-29
Other References:
AKIHIRO TANAKA ET AL.: "Gateway application for automotive net-work system "BEAN"", SAE TECHNICAL PAPER SERIES, 1999-01-1278 (INTERNATIONAL CONGRESS AND EXPOSITION), 1 March 1999 (1999-03-01) - 4 March 1999 (1999-03-04), DETROIT, MICHIGAN, XP002923616
AKIHIRO ET AL.: "Development of a car-mounted GATEWAY ECU", FUJITSU TEN GIHOU, vol. 16, no. 2, 1998, pages 36 - 42, XP002923617
THOMAS DEDELMAHR ET AL.: "C167CR bringt gateway-funktionalitaet in den bordrechner", SIEMENS, COMPONENTS, vol. 35, no. 5/6, 1997, pages 44 - 45, XP002923618
See also references of EP 1244252A4
Attorney, Agent or Firm:
Sakuta, Yasuo (Ltd. 5-1, Marunouchi 1-chome Chiyoda-ku Tokyo, JP)
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