Contextual gesture interface

  • US 6,340,979 B1
  • Filed: 08/16/1999
  • Issued: 01/22/2002
  • Est. Priority Date: 12/04/1997
  • Status: Expired due to Term
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First Claim
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1. A method of providing a contextual user interface comprising the steps of:

  • ascertaining a current user application out of a plurality of applications;

    detecting an object making contact with a physical viewing area;

    determining which type of object, of a plurality of types of objects, has made contact with the physical viewing area by performing the substeps of;

    determining a characteristic of the contact;

    determining a rate of change in the amount of pressure imposed by the object on the physical viewing area; and

    computing a point size of the contact based on the rate of change in the amount of pressure, thereby determining which type of object of the plurality of types of objects has made contact with the physical viewing area, and activating a function corresponding to the contact characteristic, the type of object making contact, and the current user application.

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