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Systems and methods of deterministic annunciation

  • US 7,400,240 B2
  • Filed: 08/16/2005
  • Issued: 07/15/2008
  • Est. Priority Date: 08/16/2005
  • Status: Active Grant
First Claim
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1. A supervisory process comprising:

  • periodically sending a first identifier from a device being supervised, the identifiers are temporally spaced apart by a predetermined period;

    non-periodically sending an event message upon the occurrence of the event; and

    sensing received identifiers; and

    , determining if each such identifier has been received displaced in time from a prior received identifier an amount on the order of the period.

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