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RFID sensor array and sensor group based on pulse-processing

  • US 8,026,795 B2
  • Filed: 02/20/2008
  • Issued: 09/27/2011
  • Est. Priority Date: 02/22/2007
  • Status: Expired due to Fees
First Claim
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1. A radio frequency identification tag device comprising:

  • a clock generator;

    a sensor array having at least two different sensing elements combined for detecting a certain property of an object;

    a sensing pulse generator with said sensing elements incorporated for generating sensing pulses, the pulse width of which changes with sensing values obtained from said sensing elements, and at least one said sensing pulse is generated for each said sensing element;

    a logic circuit for generating a binary ID code sequence signal, which includes a blank code and an identification code containing information about said sensor array;

    a signal generator that concatenates said binary ID code sequence signal and said sensing pulses into a mixed code sequence signal through a logic operation of said blank code and said sensing pulses;

    a radio frequency tuned circuit;

    a circuit for emitting modulated signals generated with said mixed code sequence signal through said radio frequency tuned circuit.

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