Controller for plural area sensors

Details Controller for plural area sensors Controller for plural area sensors

1998-09-22

2000-10-24

Mullen, Thomas

Communications: electrical

Condition responsive indicating system

Specific condition

250221, 340518, 340531, G08B 1318

Patent

active

061374083

ABSTRACT:
A controller for use with a plurality of area sensors that controls more than one area sensor having a multiple of optical paths connecting a set of a light projector and a light receiver, the controller comprising: a master controller, for controlling not only one-of the area sensors but also at least one other area sensor; and a slave controller connected to the master controller, for performing signal transfer between the master controller and the at least one other area sensor.

REFERENCES:
patent: 4309696 (1982-01-01), Nagai et al.
patent: 4413259 (1983-11-01), Lutz et al.
patent: 4650990 (1987-03-01), Jonsson
patent: 5015840 (1991-05-01), Blau
patent: 5281809 (1994-01-01), Anderson et al.

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