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Method and apparatus for attenuating of a broadcasting received signal for achieving a better distance resolution in monitoring systems

  • US 20050012656A1
  • Filed: 07/16/2003
  • Published: 01/20/2005
  • Est. Priority Date: 07/16/2003
  • Status: Active Grant
First Claim
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1. A receiving unit associated with at least one local monitoring unit for use in a monitoring system, the receiving unit receives signals transmitted from at least one transmitting tag, the receiving unit comprising:

  • an attenuating unit (110) for attenuating the transmitted signals by a controlled factor;

    a receiver (120) for receiving and processing the transmitted signals into readable data;

    a microcontroller (130) for determining the distance between the at least one transmitting tags and the receiving unit; and

    an electronic circuitry (150) for calculating the received strength signal indication.

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