Apparatus for monitoring persons within predetermined areas,...

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

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C340S573100, C340S573400, C340S574000, C340S539110, C340S539130, C340S539120

Reexamination Certificate

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07106197

ABSTRACT:
An apparatus for monitoring persons within predetermined areas has a plurality of tags irremovably applicable to persons and contain data characteristic of the person. At least one sensor for senses the presence of each person and is operationally connectable to each tag (2) via an ether. A supervision and control unit is operationally connected to the at least one sensor.

REFERENCES:
patent: 5075670 (1991-12-01), Bower et al.
patent: 5627520 (1997-05-01), Grubbs et al.
patent: 5650766 (1997-07-01), Burgmann
patent: 6335688 (2002-01-01), Sweatte
patent: 2003/0174059 (2003-09-01), Reeves
patent: 197 32 806 (1999-02-01), None
patent: 2641397 (1990-06-01), None

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