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Smart transmitter for utility meters

  • US 20060103546A1
  • Filed: 11/16/2004
  • Published: 05/18/2006
  • Est. Priority Date: 11/16/2004
  • Status: Active Grant
First Claim
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8. A smart transmitter for transmitting data representative of resource consumption from a utility meter to a remote location, said transmitter comprising:

  • a processor, a reference-frequency-generator, and transmitter circuitry;

    wherein said transmitter circuitry is operatively connected to said processor, said reference-frequency-generator, and an antenna;

    wherein said transmitter circuitry is configured for transmitting a data-signal to a remote location;

    wherein said reference-frequency-generator comprises frequency-components that generate a reference-frequency;

    wherein said reference-frequency drifts in response to changes in the temperature of said frequency-components and wherein the reference-frequency drift substantially follows known frequency-drift-data;

    wherein said frequency-drift-data is stored in a memory associated with said processor;

    wherein said processor is further configured to access temperature data from a temperature sensor associated with said processor, use said temperature data and said frequency-drift-data to determine a frequency-adjustment-value, and to transfer said frequency-adjustment-value to said transmitter circuitry; and

    wherein said transmitter circuitry is further configured use said reference-frequency and said frequency-adjustment-value when determining the carrier frequency of the transmitted data-signal.

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