Motion sensor system with motor-actuated detection unit
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United States of America Patent
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Sep 13, 2011
Grant Date -
Aug 5, 2010
app pub date -
Oct 19, 2008
filing date -
Oct 19, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is a detection process performed in the detector, which is switchable between an active detection mode, where the detector actively monitors the surrounding area, and a passive detection mode. The data obtained by operation in the active detection mode for the first time are temporarily stored to serve as an initial environmental parameter. Subsequently, the detector operates primarily in the passive detection mode to determine whether or not a downstream device is to be activated, while switching intermittently from the passive detection mode to the active detection mode to thereby determine the activation or deactivation of the downstream device based on the result of comparing the detected value with the initial environmental parameter.
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