Proximity alert and direction indicator

Details Proximity alert and direction indicator Proximity alert and direction indicator

1995-04-10

1996-09-17

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

340539, 455100, G08B 2100

Patent

active

055572596

ABSTRACT:
A proximity alert and direction indicator is provided that allows an observer to monitor the proximity of a subject under surveillance, particularly a child. The subject wears a transmitter removeably attached to the shoe. The observer wears a receiver-containing bracelet. The receiver contains a proximity detector with threshold set that emits an audible sound when the distance between the subject and the observer exceeds some preset distance. The receiver also contains a direction finder with graphic display that shows the observer the direction to the subject.

REFERENCES:
patent: 4593273 (1986-06-01), Narcisse
patent: 4785291 (1988-11-01), Hawthorne
patent: 5115223 (1992-05-01), Moody
patent: 5119072 (1992-06-01), Hemingway
patent: 5274359 (1993-12-01), Adams
patent: 5289163 (1994-02-01), Perez et al.

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