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METHOD AND APPARATUS FOR USING PRESSURE INFORMATION FOR IMPROVED COMPUTER CONTROLLED HANDWRITING RECOGNITION DATA ENTRY AND USER AUTHENTICATION

  • US 20090202153A1
  • Filed: 03/02/2009
  • Published: 08/13/2009
  • Est. Priority Date: 03/01/2000
  • Status: Active Grant
First Claim
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1. In a computer system, a method of performing authentication comprising:

  • accessing spatial stroke data and pressure data captured by a digitizer of the computer system and representing a user-drawn signature wherein respective pressure data is associated with respective spatial stroke data, wherein a display screen of the computer system comprises the digitizer;

    storing the spatial stroke data and pressure data into a computer memory;

    comparing the spatial stroke data and pressure data of the user-drawn signature to stored spatial stroke data and pressure data of a reference signature for a match;

    generating an authentication signal upon a match of the spatial stroke data and pressure data and the stored spatial stroke data and pressure data; and

    provided the authentication signal is generated, allowing a user access to the computer system, otherwise prohibiting the user from accessing a portion of the computer system.

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