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Intelligent label

  • US 5,802,015 A
  • Filed: 05/05/1997
  • Issued: 09/01/1998
  • Est. Priority Date: 05/05/1997
  • Status: Expired due to Fees
First Claim
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1. An electronic timing label for indicating the expiration of a time period associated with an article, said label comprising:

  • a pulse generator, configured to generate a series of pulses at a predetermined pulse rate;

    a first binary counter having a clock input to which the series of pulses from said pulse generator are operatively coupled, said first counter having a most significant bit output;

    a second binary counter having a clock input to which the most significant bit output of said first counter is operatively coupled, said second count having a most significant bit output,said first and said second counters being configured together as a two-stage binary counter which counts from an initial count number to a final count number in response to the series of pulses, the number of counts between the initial and final count numbers and the pulse rate being chosen to establish a counting time which corresponds to the time period associated with the article, the two-stage counter being configured to generate an expiration signal at the most significant bit output of said second counter upon reaching the final count number;

    indicator means, operatively coupled to the most significant bit of said second counter, for indicating the expiration of the time period in response to the expiration signal;

    a programming port, operatively coupled to the clock input of said first binary counter, for directing programing pulses to said first counter to preset the number of counts in the two-stage counter between the initial and final count numbers; and

    means for affixing said electronic timing label to an application surface associated with the article.

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