MOVEMENT SENSING DEVICE USING PROXIMITY SENSOR AND METHOD OF SENSING MOVEMENT
First Claim
1. A movement sensing device configured to detect movement of an object on a touch region, the movement sensing device comprising:
- three or more proximity sensors arranged on one surface adjacent to the touch region independently and two-dimensionally, to measure electrical scalars corresponding to distances with the object on the touch region, respectively; and
a control unit configured to calculate a vector of a second touch point relatively changed with respect to a first touch point based on a first electrical scalar and a second electrical scalar measured at a predetermined time difference,wherein a relative moving signal with respect to a reference point is generated by calculating the movement of the object as the vector.
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Abstract
There is disclosed a movement sensing device configured to detect movement of an object on a touch region three or more proximity sensors arranged on one surface adjacent to the touch region independently and two-dimensionally, to measure electrical scalars corresponding to distances with the object on the touch region, respectively; and a control unit configured to calculate a vector of a second touch point relatively changed with respect to a first touch point based on a first electrical scalar and a second electrical scalar measured at a predetermined time difference, wherein a relative moving signal with respect to a reference point is generated by calculating the movement of the object as the vector.
45 Citations
18 Claims
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1. A movement sensing device configured to detect movement of an object on a touch region, the movement sensing device comprising:
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three or more proximity sensors arranged on one surface adjacent to the touch region independently and two-dimensionally, to measure electrical scalars corresponding to distances with the object on the touch region, respectively; and a control unit configured to calculate a vector of a second touch point relatively changed with respect to a first touch point based on a first electrical scalar and a second electrical scalar measured at a predetermined time difference, wherein a relative moving signal with respect to a reference point is generated by calculating the movement of the object as the vector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of sensing movement of an object on a touch region comprising steps of:
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measuring first and second electrical scalars at a predetermined time different, corresponding to first and second touch points of the object, respectively; and calculating a vector of the second touch point relatively changed with respect to the first touch point, wherein the steps are performed by using three or more proximity sensors arranged on one surface adjacent to the touch region independently and two-dimensionally, to measure electrical scalars corresponding to distances with the object on the touch region, respectively. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification