| 摘要 |
<p>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. <IMAGE></p> |
