Hitachi, Ltd.

Kazunori Ayabe

Setsuo Arita

Satoru Ito

Nao Saito

Yukio Sagawa

A communication system in trains comprises a control data communication deviceand an image data communication deviceinstalled in each of the cars. The control data communication devicetransmits train operation information, train location information, control instructions of train-mounted apparatuses, and the like. The image data communication devicetransmits image information such as moving images and still images, audio information such as in-train announcement, textual information for caption display, and operation log information of apparatuses, which form the contents, to a display unitinstalled in each of the cars and to apparatusessuch as a telephone. The display unitswitches the display on the screen in accordance with train control information transmitted from the control data communication devicethrough the image data communication device

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Hitachinaka, Japan

Kazunori Ayabe