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Remote sensor, device and method for activating selected remote sensor components

  • US 20060202802A1
  • Filed: 05/11/2004
  • Published: 09/14/2006
  • Est. Priority Date: 05/12/2003
  • Status: Active Grant
First Claim
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1. A remote identifier (2) that can be attached to products, which includes a microcircuit (7), in which there is a memory and means for processing a radio-frequency signal and an antenna (6) connected to the microcircuit (7), by means of which both the signal and also electric power for the operating voltage of the microcircuit (7) can be received, characterized in that a component (3), the electrical properties of which change due to the effect of infrared, or visible light, is electrically connected to the microcircuit (7) of the remote identifier and there are means in the microcircuit (7), by which the combined effect of a change in the radio-frequency signal and the electrical component (3) can be expressed by a correlation method for the signals, in order to activate the remote identifier (2) for two-way data transmission.

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