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System and method of group definition

  • US 6,462,653 B1
  • Filed: 12/13/1999
  • Issued: 10/08/2002
  • Est. Priority Date: 12/13/1999
  • Status: Expired due to Term
First Claim
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1. An event detection system comprising:

  • a plurality of independently functioning event detectors wherein at least some of the detectors define group boundaries by the presence of selected electronic components coupled directly to respective ones of the boundary defining detectors, and wherein at least some of the event detectors are associated with a group without the presence of the selected electronic components coupled directly thereto, due to the location of the non-group boundary defining detectors relative to the detectors which define group boundaries.

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