Viewing distance safety system

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

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Details

C340S555000, C340S552000

Reexamination Certificate

active

06927696

ABSTRACT:
A viewing distance safety system, utilizing a viewing distance safety device having two ultrasonic sensor modules at a particular angle to each other to achieve a wide field of view, and includes an adjustable, user selected, distance threshold setting that activates a warning when an object or person enters the region within the threshold distance. The system emits a warning when the threshold distance has been crossed, and, once the distance is cleared, the warning stops and the system resets itself. The system allows a voice message to be recorded for playback when an alarm is activated by crossing into the threshold distance.

REFERENCES:
patent: 4321593 (1982-03-01), Ho et al.
patent: 4716469 (1987-12-01), Kim et al.
patent: 4831448 (1989-05-01), Park
patent: 4835614 (1989-05-01), Ryu
patent: 4843464 (1989-06-01), Choi
patent: 4897630 (1990-01-01), Nykerk
patent: 4967083 (1990-10-01), Kornbrekke et al.
patent: 5355180 (1994-10-01), Back
patent: 5408276 (1995-04-01), Morales
patent: 5495302 (1996-02-01), Abruna
patent: 5541664 (1996-07-01), Cuadrado
patent: 5604479 (1997-02-01), Chang
patent: 6459375 (2002-10-01), Wallace

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