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Event-driven graphical user interface for use in a touch-screen enabled handheld portable data terminal

DC
  • US 6,820,050 B2
  • Filed: 03/29/2001
  • Issued: 11/16/2004
  • Est. Priority Date: 02/14/1994
  • Status: Expired due to Fees
First Claim
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1. A graphical user interface for use in a handheld portable data terminal including a display screen and touch screen for sensing location of user contact, the graphical user interface comprising:

  • a display sequence displaying multiple virtual regions on the display screen, wherein each virtual region corresponds to an event identifier; and

    an event handler for identifying one of the virtual regions that corresponds to the location of user contact sensed by the touch screen, determining a specific event identifier corresponding to the identified virtual region, and processing a predetermined sequence for the specific event identifier;

    wherein said multiple virtual regions include a menu screen and a graphing screen, and wherein each selection from said menu screen corresponds to a virtual region and an associated processing sequence.

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