Honda Giken Kogyo Kabushiki Kaisha

Oki Electric Industry Co., Ltd.

Rumiko Akimoto

Kazuo Nakamura

Katsutoshi Tagami

Yoshikazu Tsuchiya

Harutada Ohya

Hayato Muneyuki

A multiplex transmission system (100) in which any (N.sub.i) of a plurality of nodes (N.sub.l -N.sub.n) connected loop-like with a signal transmission path (1a, 1b) and each respectively connected to, for controlling, one of a plurality of electrical equipments is adapted for transmitting, in a given order (i) and in accordance with a time base (1/2t.sub.1) that this node (N.sub.i) itself has, a prepared signal (A.sub.i, D) to the signal transmission path (1a, 1b) and for receiving prepared signal (A.sub.i, D; A.sub.x, D) from the signal transmission path (1a, 1b), wherein any (N.sub.i) of the nodes (N.sub.l -N.sub.n) is adapted, at a time point (r.sub.2, r.sub.3) where this node (N.sub.i) has received the prepared signal (A.sub.x, D) from any other node (N.sub.x) to have its own time base (1/2t.sub.1) synchronized with the time base (1/2t.sub.1) of the other node (N.sub.x). Any (N.sub.i) of the nodes (N.sub.l -N.sub.n) further comprises a monitoring timer (CNT.sub.2) adapted to have a monitoring time interval (t.sub.2, t.sub.i3, t.sub.i4) set thereon at a predetermined time point (59, 62, 71, 84, 88), and is adapted to rise for transmitting the prepared signal (A.sub.i, D) thereof to the signal transmission path (1a, 1b) when the monitoring timer (CNT.sub.2) has timed up.

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Tokyo, Japan

Rumiko Akimoto