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WIRELESS TEMPERATURE SENSOR

  • US 20100040191A1
  • Filed: 10/09/2006
  • Published: 02/18/2010
  • Est. Priority Date: 10/09/2006
  • Status: Active Grant
First Claim
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1. Integrated temperature sensor comprising:

  • means for generating a pulse train, DATA_IN, at a certain oscillation frequency;

    means for counting the number of pulses of the pulse train, DATA_IN, during a fixed time independent of a temperature to be measured, T, and for generating a plurality of bits, b11, b10, . . . , b0, indicating the number of pulses comprised in the pulse train, DATA_IN;

    means for generating a serial digital signal, DATA_OUT, DATA_OUT@T, from the plurality of bits, b11, b10, . . . , b0;

    wherein the means for generating a pulse train, DATA_IN, comprise a plurality of logic gates which are capable of introducing a delay dependent on the temperature to be measured, T, the means generating a pulse train, DATA_IN, the oscillation frequency of which is dependent on the temperature to be measured, T.

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