TOUCH SENSING DEVICE, TOUCH SCREEN DEVICE INCLUDING A TOUCH SENSING DEVICE, MOBILE DEVICE AND METHOD FOR SENSING A TOUCH ON A TOUCH SENSING DEVICE
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United States of America Patent
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Issued Date -
Jan 20, 2011
app pub date -
Jul 14, 2009
filing date -
Jul 14, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a touch sensing device, touch screen device, mobile device and method for sensing a touch and, in particular, to a touch sensing device usable as user interface for controlling various functions in different devices to provide additional and more flexible input operations. The touch sensing device comprises a cover layer defining a touch area, a first winding placed on one side of said cover layer and extending over at least a part of said touch area, and a second winding placed on the same side of said first winding, being spaced apart from said first winding, wherein said first and second windings and said cover layer are arranged so that a coupling of a magnetic field generated by a current supplied to said first winding varies in response to a force onto the touch area.
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