Matsushita Electric Industrial Co., Ltd.

Yukiko Ono

Masao Ikezaki

Shotaro Tanaka

Takeshi Goto

Hiroshi Sasanuma

An information transmission system having a plurality of communication control units connected to one another through an information transmission path in a communication network comprises devices for collectively transmitting and collecting broadcasting information to and from selected plural communication control units by sending one information message.

Information transmission system having collective data transmission and

Messages are transmitted via a gateway between terminal equipments in different communication networks. The message includes a source address, a destination address, a first header information set, at least one data block, and an end code. The source address corresponds to the terminal equipment or the gateway from which the message is transmitted. The destination address corresponds to the terminal equipment or the gateway to which the message is directed. The first header information set has routing information related to the terminal equipments between which the messages are transmitted. The data block includes a second header information set and a command. The second header information set has routing information related to sections of the terminal equipments between which the messages are transmitted. The command is given to the section of the terminal equipment to which the message is directed.

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Yawata, Japan

Yukiko Ono