|発明の名称||MULTI-TERMINAL OPTICAL DATA BUS STRUCTURE USING LINEAR OPTICAL TRANSMISSION PATH|
PROBLEM TO BE SOLVED: To provide a multiterminal data bus structure, using a linear optical transmission path which can properly transfer a light signal and can connect many apparatuses.
SOLUTION: A plurality of terminal apparatuses are provided between a plurality of bus lines, which lead light signals in one direction and a plurality of second bus line which lead light signals in other directions, and each transmitter is connected to the first bus line, and each receiver is connected to the second bus line. Moreover, a bus line control apparatus, which has a receiver and a transmitter in a pair, is connected between each first bus line and each second bus line, and each receiver is connected downstream in one direction by more than each terminal apparatus to the first bus line, and each transmitter is connected farther upstream in the other direction more than each terminal apparatus to the second bus line. This bus line control apparatus outputs the second light signal to each terminal apparatus, in response to the fist light signal from each terminal apparatus. Hereby, this structure can transfer signals to one another between many terminal apparatuses.
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