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Piezoelectric data entry devices

  • US 20010050677A1
  • Filed: 05/04/2001
  • Published: 12/13/2001
  • Est. Priority Date: 10/21/1998
  • Status: Abandoned Application
First Claim
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1. A transmitter eraser, comprising:

  • an erasing pad having a diameter;

    a piezoelectric transducer located near said erasing pad, said piezoelectric transducer having a piezoelectric shell having an outer surface and an inner surface, and having a bottom edge and a top edge, said inner surface defining an inner region, an outer conductive layer on said outer surface of said piezoelectric shell, an inner conductive layer on said inner surface of said piezoelectric shell; and

    means for applying a voltage to said inner conductive layer and said outer conductive layer.

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