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LONG RANGE PROXIMITY AND/OR MOTION DETECTOR WITH AMBIENT LIGHT DETECTION CAPABILITIES

  • US 20100277075A1
  • Filed: 04/26/2010
  • Published: 11/04/2010
  • Est. Priority Date: 04/29/2009
  • Status: Active Grant
First Claim
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1. A system configured for ambient light detection, proximity detection and motion detection, the system comprising:

  • a front end configured toreceive a detected light signal generated using a light detector, wherein the detected light signal is indicative of both detected ambient light as well as detected radio frequency (RF) light produced by a light source;

    output a detected ambient light signal primarily indicative of the portion of the detected light signal that is indicative of detected ambient light; and

    output a detected RF light signal primarily indicative of the portion of the detected light signal that is indicative of detected RF light;

    an ambient channel configured to produce one or more ambient output signal indicative of the detected ambient light in dependence on the detected ambient light signal;

    a proximity channel configured to produce one or more proximity output signal indicative of proximity of an object relative to the system, in dependence on the detected RF light signal; and

    a motion channel configured to produce one or more motion output signal indicative of motion of an object relative to the system, in dependence on the detected RF light signal.

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