MULTI-PROTOCOL ELECTRONIC TOLL COLLECTION SYSTEM
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United States of America Patent
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Issued Date -
Dec 15, 2011
app pub date -
Jun 14, 2010
filing date -
Jun 14, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and method for dynamically selecting a communication protocol in an electronic toll collection system. A first reader communicating under a primary communication protocol is connected to a roadway antenna. If a transponder of the primary protocol is detected within a predetermined duration, then the first reader maintains its access to the roadway antenna so that it may perform an electronic toll transaction with the detected transponder. If a transponder of the primary protocol is not detected within a predetermined duration, then the first reader will switch over access of the antenna to a second reader operating under a secondary protocol so that the second reader may perform an electronic toll transaction with a detected secondary protocol transponder.
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