Power conserving mobile transmitter
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United States of America Patent
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Jun 7, 2011
Grant Date -
Jul 10, 2008
app pub date -
Jan 9, 2007
filing date -
Jan 9, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
An operator system and related methods for automatically controlling access barriers which include a base controller associated with at least one access barrier and at least one base receiver associated with the base controller. The system also includes a mobile transmitter configured to be carried by a carrying device, such as a vehicle. The mobile transmitter automatically and periodically generates a mobile signal received by the base receiver. The base controller selectively generates barrier movement commands upon receipt of the at least one mobile signal. Furthermore, the mobile transmitter includes an accelerometer to detect when the carrying device is moving so as to selectively turn the mobile transmitter on and off in order to conserver power.
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