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Method of triggering an event

DC
  • US 6,259,381 B1
  • Filed: 07/02/1998
  • Issued: 07/10/2001
  • Est. Priority Date: 11/09/1995
  • Status: Expired due to Term
First Claim
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1. A method of triggering an event in a roving apparatus, said method comprising the steps of:

  • a) defining a plurality of predetermined areas;

    b) associating one or more events with each of said predetermined areas;

    c) specifying at least one triggering criteria for each of said one or more events;

    d) calculating the position of (the) said roving apparatus;

    e) (evaluating) performing an evaluation of the status and position of (the) said roving apparatus in comparison to said at least one triggering criteria and the position of said predetermined areas; and

    i) if (the) said evaluation determines the roving apparatus is outside all predetermined areas, the roving apparatus maintains (said calculating) performing the evaluation of the status and position of the roving apparatus, without triggering an event;

    ii) if (the) said evaluation determines the roving apparatus is within one of (the) said predetermined areas, and said (the) at least one (said) triggering criteria specified for (an) a particular event is met, (the) said particular event is triggered;

    iii) if (the) said evaluation determines the roving apparatus is within (the) an overlapping portion of any overlapping predetermined areas, and (the) said at least one (said) triggering criteria specified for an event is met, events from any of the overlapping predetermined areas may be triggered in accordance with any one of said at least one triggering criteria for said overlapping predetermined areas;

    such that there is no requirement to specify triggering criteria for every area which the roving apparatus may traverse.

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