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Piezo-electric content use monitoring system

  • US 20050223826A1
  • Filed: 04/23/2003
  • Published: 10/13/2005
  • Est. Priority Date: 04/24/2002
  • Status: Active Grant
First Claim
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1. A device for monitoring use of blister packaged contents, said device comprising:

  • an integrated circuit having an internal clock and analog-to digital conversion capabilities;

    memory means associated with said integrated circuit;

    battery means connected to said integrated circuit;

    antenna means connected to said integrated circuit; and

    piezoelectric transducer means connected to said integrated circuit;

    said device being adapted for attachment to a blister package such that displacement of said piezoelectric transducer means when contents are expelled from said blister package creates a signal indicative of content use data which is analysed by said integrated circuit and stored in said memory means.

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