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Secondary touch contextual sub-menu navigation for touch screen interface

  • US 20040150668A1
  • Filed: 01/31/2003
  • Published: 08/05/2004
  • Est. Priority Date: 01/31/2003
  • Status: Active Grant
First Claim
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1. A touch sensitive user interface system including:

  • a display screen (20) for displaying a plurality of primary and secondary images (86,92) representative of primary and secondary selectable options;

    touch sensitive means (56) for detecting the concurrent presence of at least one of a first probe (84) and a second probe (88) in contact with the display screen (20); and

    , control logic (38), responsive to the touch sensitive means (56), for determining the first probe contact position, defining for each primary image representative of a primary selectable option, a first probe contact area of predetermined size, over which contact with the first probe selects the primary option, displaying a secondary menu (90) including a plurality of secondary images representative of secondary selectable options, and defining for each secondary image representative of a secondary selectable option, a second contact area of predetermined size, over which contact with the second probe selects the secondary option.

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