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Apparatus and method for reading utility meters

  • US 5,619,192 A
  • Filed: 06/14/1994
  • Issued: 04/08/1997
  • Est. Priority Date: 06/14/1994
  • Status: Expired due to Term
First Claim
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1. A reader for receiving data indicative of the reading of a utility meter, comprising:

  • means for inductively transmitting power to the meter at a frequency to which the utility meter will respond, said means being able to transmit power at a plurality of frequencies since different types of utility meters respond to different frequencies; and

    means for inductively receiving data from the meter represented by load modulation of the transmitted frequency, the transmitted frequency thereby having a modulation envelope.

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