Data transmission system with distributed microprocessors
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United States of America Patent
Stats
-
Oct 8, 1985
Grant Date -
N/A
app pub date -
Oct 14, 1982
filing date -
Oct 18, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A data transmission system having a common request line and a special request line in addition to a transmission line. The special request line has priority over the common request line. A plurality of node stations are multi-drop connected to the transmission line. Among the node stations, a supervising station is connected to the special request line and takes precedence over other slave stations to become a master station. The master station collects data from the slave stations. The station connected to the common request line can assign a master control function to any station requesting to be assigned the master control function within a short period of time. Each station has an auto response control circuit. The master station automatically collects data by the auto response controlling circuit independently of the microprocessors of the slave stations.
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Cited Art Landscape
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