ELECTRIC APPARATUS WITH SENSOR DETECTION SYSTEM
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United States of America Patent
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Nov 12, 2013
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May 12, 2011
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Abstract
The invention pertains to an electric apparatus with a sensor detection system for detecting the presence and/or movement of human beings within a predetermined proximity of the electric apparatus, the sensor detection system generating an electric output signal for controlling the electric apparatus. The sensor detection system comprises at least two sensors wherein a first sensor is designed for monitoring gross parameters of presence and/or movement and wherein a second sensor is designed for monitoring precise parameters of presence and/or movement. The second sensor is electrically post-connected to the first sensor such that the second sensor is activated depending on a first sensor signal of the first sensor upon gross detection of presence and/or movement by the first sensor, and generating a second sensor signal upon precise detection of presence and/or movement, the second sensor signal constituting the output signal of the sensor detection system.
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