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Automated meter reader device having optical sensor with automatic gain control

  • US 20050104744A1
  • Filed: 09/28/2004
  • Published: 05/19/2005
  • Est. Priority Date: 10/16/1999
  • Status: Active Grant
First Claim
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1. A device for coupling to a meter measuring product delivery, comprising:

  • an interface module adapted to couple to the meter, the interface module having an optical transceiver comprising at least one photodiode adapted to optically ascertain readings of an analog meter face; and

    an interface circuit adapted to process signals from the at least one photodiode, the interface circuit adapted to selectively process the photodiode signals.

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