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System and method for detecting movement of an infant from a secure area

  • US 5,079,541 A
  • Filed: 06/04/1990
  • Issued: 01/07/1992
  • Est. Priority Date: 06/04/1990
  • Status: Expired due to Fees
First Claim
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1. A system for detecting the passage of an infant from a secure area comprising:

  • (a) a first diaper adapted to be worn by an infant in the secure area, said first diaper comprising,(1) means for presenting a conspicuous appearance so that said first diaper is adapted to be visually distinguished from diapers not having said present means, and(2) indicator means embedded in said first diaper so that the presence of said indicator means is not sensed by an infant wearing said first diaper for causing a signal to be generated indicating passage of said first diaper from the secure area;

    (b) detector means positioned adjacent openings to the secure area for detecting passage of said first diaper out of the secure area and for generating an electronic signal responsively thereto; and

    (c) alarm means for providing an alarm signal responsively to receipt of said electronic signal,so that an infant wearing said first diaper leaving the secure area is detected electronically by said detector means and an infant not wearing said first diaper attempting to evade said detector means can be detected visually by lack of said presenting means.

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