Multiplex communications – Wide area network – Packet switching
Patent
1986-03-13
1988-09-13
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370103, 34082505, H04J 302
Patent
active
047714239
ABSTRACT:
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.
REFERENCES:
patent: 4156798 (1979-05-01), Doelz
patent: 4510494 (1985-04-01), Mizokawa et al.
patent: 4517644 (1985-05-01), Hamada et al.
patent: 4536876 (1985-08-01), Bahr et al.
Susumu Hiraoka and Tetsuo Sugimoto, "Simplification of Automobile Wiring by Multiplex Harness", vol. 38, No. 2, pp. 215-221, 1984.
Akimoto Rumiko
Muneyuki Hayato
Nakamura Kazuo
Ohya Harutada
Tagami Katsutoshi
Honda Giken Kogyo Kabushiki Kaisha
OKI Electric Industry Co., Ltd.
Olms Douglas W.
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