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Controller for plural area sensors

  • US 6,137,408 A
  • Filed: 09/22/1998
  • Issued: 10/24/2000
  • Est. Priority Date: 06/09/1998
  • Status: Expired due to Fees
First Claim
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1. A controller for use with a plurality of area sensors, said controller controlling more than one area sensors each of said more than one area sensors having a light projector and a light receiver each, said light projector and light receiver being connected by a plurality of optical paths, said controller comprising:

  • a master controller, for controlling said more than one area sensors; and

    a slave controller connected to said master controller, for perfonning signal transfer between said master controller and said at least one of said more than one area sensors.

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