System for interconnecting parking meters having a memory
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United States of America Patent
Stats
-
Mar 14, 1989
Grant Date -
N/A
app pub date -
Jul 2, 1986
filing date -
Jul 2, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a system for interconnecting memory slot machines, for example parking meters or ticket vending machines. Each slot machine (B.sub.1, B.sub.2, . . . ) includes a circuit (C.sub.1, C.sub.2, . . . ) which receives data to be transferred. These circuits are interconnected by a seizure loop (18; 20, 22) and by a data transmission loop (26, 28). When information becomes available at a slot machine, this causes the seizure circuit to be powered up, thereby supplying power to the data transfer loop and to the data-receiving circuits (C.sub.1, C.sub.2, . . . ) of the other slot machines. Once the information has been transmitted to the other slot machines, the above-mentioned circuits are no longer powered.
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Cited Art Landscape
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