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Automatic personnel monitoring system

  • US 4,747,120 A
  • Filed: 08/13/1985
  • Issued: 05/24/1988
  • Est. Priority Date: 08/13/1985
  • Status: Expired due to Term
First Claim
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1. A monitoring system for monitoring the presence of a person at a remote location through a telephone line, comprising:

  • means at a central location for automatically establishing a telephone link between the central and remote locations;

    an object;

    means for attaching said object to said person and indicating if said attachment has been tampered with; and

    decoder means at the remote location said decoder means including means for receiving said object and means for producing a verification signal and transmitting the verification signal to said central location upon insertion of said object into said object-receiving means.

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