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RF transmitter device and method for operating the same

  • US 8,447,238 B2
  • Filed: 07/22/2010
  • Issued: 05/21/2013
  • Est. Priority Date: 07/24/2009
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a radio frequency (RF) transmitter device configured to supply energy by RF transmission within a given transmitter coverage area, to receive information about a detected living being, and to adapt a transmit power of the RF transmission according to the received information; and

    a plurality of sensor units, each sensor unit configured to detect living beings within a given sensor coverage area and to communicate with the RF transmitter providing information about an identity of the sensor unit and about a detected living being, the plurality of sensor units configured so that a living beings detection area covers an area overlapping the transmitter coverage area,wherein the RF transmitter is further configured to lower the transmit power of the RF transmission based on the sensor unit identity when detecting a living being.

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