PURPOSE: To perform normal transmission, even if a transmission line is broken, by connecting a master station and slave stations with a duplex loop and outputting data bidirectionally at the slave stations, in a multiple signal transmission system used in a car, for the data communication betwen the master and slave stations.
CONSTITUTION: A master station 1 transmits a control code which invites the transmission of slave stations at a prescribed period. Slave stations 2, 3 receive the control code of the master station, and when the code is a code inviting the transmission of a slave station, data are transmitted following the control code. Since multiple signal transmission lines 4∼9 form bidirectional loop, the slave station outputs the data on both output lines and transmits the data to the master station.
TSUCHIDA TAKASHI
OKADA KAZUKIYO
OKUDA YUTAKA
SHINOHARA TOSHIO
TOYOTA MOTOR CO LTD
| JPS55136742A | 1980-10-24 |