Displays for electronic devices that detect and respond to the contour and/or height profile of user input objects
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United States of America Patent
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Aug 20, 2013
Grant Date -
Apr 12, 2012
app pub date -
Oct 6, 2010
filing date -
Oct 6, 2010
priority date (Note) -
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Abstract
An electronic device includes a touch-sensitive display screen including an array of electromagnetic radiation detectors. The array of electromagnetic radiation detectors is configured to generate an image signal that represents an image of a user input object that is closely spaced to the display, and to generate a touch signal in response to the display screen being touched by the user input object. The electronic device further includes a controller circuit that is configured to display a plurality of keys forming a keyboard and to display characters on the keys. The controller identifies from the image signal a size and/or an angular orientation of the user input object relative to the display screen. The controller identifies a user's selection among characters indicated on the keyboard keys in response to the identified size and/or the angular orientation of the user input object and in response to the touch signal, and outputs character data corresponding to the identified user selected character.
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