Apparatus and method for improvement of usability of touch screen
First Claim
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1. An apparatus for improving usability of a touch screen, the apparatus comprising:
- a touch sensor to sense a first touch and a second touch, and to detect touched locations of the sensed touches;
a pointer setting unit, comprising a processor, to set a pointer to the detected location of the first touch; and
a coordinate transforming unit, comprising a processor, to move a location of the pointer from the detected location of the first touch to a new location, in response to movement of the second touch,wherein the touch sensor differentiates the first touch and the second touch from each other with reference to a predetermined interval of time between the first touch and second touch,wherein the pointer remains at the detected location of the first touch when the second touch is detected at a location different from a location of the first touch.
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Abstract
Provided are an apparatus and method for improving usability of a touch screen. The apparatus includes a touch sensing unit that senses a first touch and a second touch and detects the touched locations of the sensed touches, a pointer setting unit that sets a pointer to the detected location of the first touch, and a coordinate transforming unit that transforms movement of a touched location, which is caused by movement of the second touch, into movement of a location of the pointer.
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Citations
24 Claims
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1. An apparatus for improving usability of a touch screen, the apparatus comprising:
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a touch sensor to sense a first touch and a second touch, and to detect touched locations of the sensed touches; a pointer setting unit, comprising a processor, to set a pointer to the detected location of the first touch; and a coordinate transforming unit, comprising a processor, to move a location of the pointer from the detected location of the first touch to a new location, in response to movement of the second touch, wherein the touch sensor differentiates the first touch and the second touch from each other with reference to a predetermined interval of time between the first touch and second touch, wherein the pointer remains at the detected location of the first touch when the second touch is detected at a location different from a location of the first touch. - View Dependent Claims (2, 3, 4, 5, 14, 16, 17, 18, 19)
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6. A method of improving usability of a touch screen, the method comprising:
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sensing a first touch, and detecting a touched location of the sensed first touch; setting a pointer to the detected location of the first touch; sensing a second touch, and detecting a touched location of the sensed second touch; and moving a location of the pointer from the detected location of the first touch to a new location, in response to movement of the second touch, wherein the sensing of the second touch comprises differentiating the first touch and the second touch from each other with reference to a predetermined interval of time between the first touch and second touch, wherein the pointer remains at the detected location of the first touch when the second touch is detected at a location different from a location of the first touch. - View Dependent Claims (7, 8, 9, 10, 11, 15, 20)
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12. An apparatus for improving usability of a touch screen, the apparatus comprising:
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a touch sensor to sense a first touch and a second touch, and to detect touched locations of the sensed touches; a pointer setting unit, comprising a processor, to set a pointer to the detected location of the first touch; and a coordinate transforming unit, comprising a processor, to move a location of the pointer from the detected location of the first touch to a new location, in response to movement of the second touch, wherein the touch sensor differentiates the first touch and the second touch from each other with reference to a predetermined boundary located a predetermined distance from the detected location of the first touch, wherein the touch sensor senses the second touch if the second touch is outside the predetermined boundary, wherein the pointer remains at the detected location of the first touch when the second touch is detected at a location different from a location of the first touch.
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13. A method of improving usability of a touch screen, the method comprising:
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sensing a first touch, and detecting a touched location of the sensed first touch; setting a pointer to the detected location of the first touch; sensing a second touch, and detecting a touched location of the sensed second touch; and moving a location of the pointer from the detected location of the first touch to a new location, in response to movement of the second touch, wherein the sensing of the second touch comprises differentiating the first touch and the second touch from each other with reference to a predetermined boundary located a predetermined distance from the detected location of the first touch, wherein the second touch is sensed if the second touch is outside the predetermined boundary, wherein the pointer remains at the detected location of the first touch when the second touch is detected at a location different from a location of the first touch.
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21. A method of improving usability of a touch screen, the method comprising:
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sensing a first touch at a first location of the touch screen; setting a pointer to the first location; sensing a second touch at a second location of the touch screen; moving the pointer from the first location to a new location of the touch screen in response to a change in location of the second touch from the second location, wherein the pointer remains at the first location when the second touch is sensed at the second location, the second location being different from the first location. - View Dependent Claims (22)
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23. A method of improving usability of a touch screen, the method comprising:
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sensing a first touch at a first location of the touch screen; setting a pointer to the first location; sensing a second touch at a second location of the touch screen; moving the pointer from the first location to a new location of the touch screen by changing coordinates corresponding to the first location of the pointer to coordinates corresponding to the new location, the change in coordinates being in proportion and in response to a change in coordinates of the second location due to movement of the second touch, wherein the pointer remains at the first location when the second touch is sensed at the second location, the second location being different from the first location. - View Dependent Claims (24)
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Specification