System and method for unattended control of an access barrier
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United States of America Patent
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May 20, 2008
Grant Date -
Jan 17, 2008
app pub date -
Jul 13, 2006
filing date -
Jul 13, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method for unattended control of an access barrier comprises a barrier operator having a timer capable of being updated at predetermined intervals. The barrier operator is configured to receive an auto-close signal that is periodically sent from a wall station, keyless transmitter, or remote transmitter that is compatible with the barrier operator. When the auto-close mode is invoked, the barrier operator initiates the timer when it detects that the access barrier has been opened. As such, the access barrier is closed via the barrier operator when both the timer has expired, and the auto-close signal is received by the barrier operator from one of the transmitters.
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