Loop data link
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United States of America Patent
Stats
-
Dec 22, 1987
Grant Date -
N/A
app pub date -
Dec 20, 1985
filing date -
Dec 31, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Data stored in a logger is transmitted from a vehicle by a responder. The data is received by a transceiver and stored in a device. Data can also be transferred in the reverse direction. An inductive loop is used to sense the presence of the vehicle and, when the vehicle is sensed, to initiate an interrogation of the vehicle. Data transfer takes place only if the vehicle is identified.
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