Personal monitoring system

Communications: electrical – Condition responsive indicating system – With particular coupling link

Reexamination Certificate

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Details

C340S539210, C340S539230, C340S573100, C340S692000

Reexamination Certificate

active

07119677

ABSTRACT:
A system for monitoring movement of a person. The system includes a mobile transmitter that is affixed to the person to be monitored. The transmitter transmits radio signals to a receiver that may be used to track the person. The receiver may include an indicator that shows when the receiver is proximate the person. The indicator changes intensity as the distance between the transmitter and receiver changes.

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patent: 5289163 (1994-02-01), Perez et al.
patent: 5486814 (1996-01-01), Quinones
patent: 5771002 (1998-06-01), Creek et al.
patent: 5841352 (1998-11-01), Prakash
patent: 5900817 (1999-05-01), Olmassakian
patent: 6084517 (2000-07-01), Rabanne et al.
patent: 201 04 550 (2001-07-01), None
patent: 0 989 532 (2000-03-01), None

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