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Signature capturing printer and data card terminal

  • US 5,479,530 A
  • Filed: 06/30/1993
  • Issued: 12/26/1995
  • Est. Priority Date: 01/10/1992
  • Status: Expired due to Term
First Claim
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1. A signature capturing device for capturing a signature applied to a receipt, comprising:

  • a stylus;

    a signature capturing window positioned to capture a signature applied with said stylus to said receipt;

    a digitizer for providing coordinate position signals of said stylus with respect to said signature capturing window;

    contact signal means for providing a contact signal indicative of said stylus being in operative contact with said signature capturing window;

    stroke detecting means responsive to said contact signal for providing a stroke signal indicative of the starting coordinate and the final coordinate of each stroke of a signature, said stroke detecting means including means for providing a stroke started signal and means for providing a stroke completed signal;

    stroke counting means for providing a stroke count signal corresponding to the number of strokes in a signature, said stroke counting means including means for determining a number N of strokes in a signature, a stroke being determined by an initial starting coordinate provided in response to said stroke started signal and a final coordinate provided in response to said stroke completed signal; and

    signature signal output means for providing signature signals as an output from said signature capturing device, said signature signals comprising said stroke count signal and for each for each stroke of the N strokes in a signature, compressed output signals indicating the difference between consecutive first and second coordinate position signals, said first coordinate position signal provided at a first sample time from said digitizer means and a second coordinate position signal provided at a second sample time from said digitizer means.

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