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Apparatus and method for touch screen user interface for handheld electronic devices part I

  • US 8,963,844 B2
  • Filed: 05/15/2009
  • Issued: 02/24/2015
  • Est. Priority Date: 02/26/2009
  • Status: Active Grant
First Claim
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1. A handheld electronic device comprising:

  • a. a touch screen control surface placed on a part of the handheld electronic device, the control surface is positioned on the part of the device in an orientation that is used by placing a thumb tip on top of the control surface;

    b. the touch screen control surface is over-sized to the thumb-tip for operation by a thumb-tip touch action on the control surface, the control surface is sized to include one of a size of, an inch by inch, 15/16 by 15/16 inch, ⅞

    by ⅞

    inch, 13/16 by 13/16 inch, ¾

    by ¾

    inch, 11/16 by 11/16 inch, ⅝

    by ⅝

    inch, 9/16 by 9/16 inch, or ½

    by ½

    inch or less than or equal to one square inch and greater than or equal to ¼

    square inch in area;

    c. the touch screen control surface is partitioned for detecting touch inputs into touch areas, where a sliding touch action on the touch areas creates a set of navigation control commands and a touch screen detection logic in the handheld electronic device receives a plurality of touch and or slide-touch inputs from the control surface and provides a user interface for controlling and navigating the functions of the handheld device.

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