Touch input method and apparatus for recognizing and distinguishing finger contact on a touch sensing surface
First Claim
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1. A touch input method comprising:
- receiving a touch input signal corresponding to a finger from a touch-sensing device;
detecting a contact area between the touch-sensing device and the finger corresponding to the received touch input signal; and
recognizing the finger corresponding to the received touch input signal based on a curvature value of the contact area and an axis corresponding to a longest diameter in the contact area as a reference line,wherein the reference line asymmetrically divides the contact area into a left half area and a right half area, andwherein the finger is recognized as a left thumb or a right thumb by comparing a size of the left half area and a size of the right half area.
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Abstract
A touch input method includes receiving a touch input signal corresponding to a finger from a touch-sensing device, detecting a contact area between the touch-sensing area and the finger corresponding to the touch input signal received, and if a curvature threshold value below which the contact area is recognizable as a circle, recognizing the finger corresponding to the touch input signal received as a thumb.
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Citations
20 Claims
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1. A touch input method comprising:
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receiving a touch input signal corresponding to a finger from a touch-sensing device; detecting a contact area between the touch-sensing device and the finger corresponding to the received touch input signal; and recognizing the finger corresponding to the received touch input signal based on a curvature value of the contact area and an axis corresponding to a longest diameter in the contact area as a reference line, wherein the reference line asymmetrically divides the contact area into a left half area and a right half area, and wherein the finger is recognized as a left thumb or a right thumb by comparing a size of the left half area and a size of the right half area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A touch input apparatus comprising:
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a touch-sensing unit configured to receive a touch input signal corresponding to a finger; a contact area detecting unit configured to detect a contact area between the touch-sensing unit and the finger corresponding to the received touch input signal; and a control unit configured to recognize the finger corresponding to the received touch input signal based on a curvature value of the contact area and an axis corresponding to a longest diameter in the contact area as a reference line, wherein the reference line asymmetrically divides the contact area into a left half area and a right half area, and wherein the finger is recognized as a left thumb or a right thumb by comparing a size of the left half area and a size of the right half area. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A non-transitory computer-readable recording medium having embodied thereon a program configured to execute a touch input method,
wherein the touch input method comprises: -
receiving a touch input signal corresponding to a finger from a touch-sensing device; detecting a contact area between the touch-sensing device and the finger corresponding to the received touch input signal; and recognizing the finger corresponding to the received touch input signal based on a curvature value of the contact area and an axis corresponding to a longest diameter in the contact area as a reference line, wherein the reference line asymmetrically divides the contact area into a left half area and a right half area, and wherein the finger is recognized as one or a left thumb and a right thumb if the left half area is greater than the right half area or if the right half area is greater than the left half area, respectively.
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Specification