Multitouch recognizing device
First Claim
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1. A multitouch recognizing device comprising:
- a transmitting module comprising at least one transmitting element for radially transmitting a touch measurement signal comprising a pulse;
a receiving module comprising at least one receiving element for receiving the touch measurement signal transmitted by the transmitting module;
a control unit for calculating coordinates or a diameter of a touch region based on the touch measurement signal received by the receiving module; and
a touch panel for allowing a user to input a touch input,wherein the at least one receiving element located at a right angle, an obtuse angle, and an acute angle to the transmitting element successively receives the touch measurement signal radially transmitted by the transmitting element as an orthogonal, acute, or obtuse touch measurement signal,wherein the control unit calculates orthogonal coordinates obtained by the orthogonal touch measurement signal of touch coordinates using the following first and second equations respectively,
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Abstract
A multi-touch recognizing device for distinguishing an illusion from an actually touched position and an illusion position by using an inclination angle measuring method, minimizing time for measuring a touch position, and more accurately measuring the position is provided.
28 Citations
14 Claims
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1. A multitouch recognizing device comprising:
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a transmitting module comprising at least one transmitting element for radially transmitting a touch measurement signal comprising a pulse; a receiving module comprising at least one receiving element for receiving the touch measurement signal transmitted by the transmitting module; a control unit for calculating coordinates or a diameter of a touch region based on the touch measurement signal received by the receiving module; and a touch panel for allowing a user to input a touch input, wherein the at least one receiving element located at a right angle, an obtuse angle, and an acute angle to the transmitting element successively receives the touch measurement signal radially transmitted by the transmitting element as an orthogonal, acute, or obtuse touch measurement signal, wherein the control unit calculates orthogonal coordinates obtained by the orthogonal touch measurement signal of touch coordinates using the following first and second equations respectively, - View Dependent Claims (12, 13, 14)
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2. A multitouch recognizing device comprising:
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a plurality of transmitting unit groups constituted by grouping touch measurement signal transmitting units for radially transmitting successive touch measurement signals to a plurality of receiving module groups comprising at least three receiving modules located at a right angle, an acute angle, and an obtuse angle to the transmitting unit groups for simultaneously receiving the touch measurement signals transmitted by the transmitting unit groups such that each of the plurality of receiving modules simultaneously receives the touch measurement signals at the right angle, the acute angle, and the obtuse angle; a transmitting unit driving clock unit for providing a driving clock to simultaneously drive the touch measurement signal transmitting units having the same index in each of the transmitting unit groups; a control unit for calculating a x coordinate, a y coordinate, and a touch point diameter of a touch region based on the touch measurement signals received by the receiving module groups; and a touch panel for allowing a user to input an touch input, wherein the control unit calculates orthogonal coordinates obtained by the orthogonal touch measurement signal of touch coordinates using the following first and second equations, respectively; - View Dependent Claims (3, 4, 5, 6, 10, 11)
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7. A multitouch recognizing device comprising:
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a plurality of transmitting unit groups constituted by grouping touch measurement signal transmitting units for radially transmitting successive touch measurement signals to a plurality of receiving module groups comprising at least three receiving modules located at a right angle, an acute angle, and an obtuse angle to the transmitting unit groups for simultaneously receiving the touch measurement signals transmitted by the transmitting unit groups such that each of the plurality of receiving modules simultaneously receives the touch measurement signals at the right angle, the acute angle, and the obtuse angle; a transmitting unit driving clock unit for providing a driving clock to simultaneously drive the touch measurement signal transmitting units having the same index in each of the transmitting unit groups; a control unit for calculating a x coordinate, a y coordinate, and a touch point diameter of a touch region based on the touch measurement signals received by the receiving module groups; and a touch panel for allowing a user to input an touch input, wherein coordinate values measured from the touch region are calculated and used as normalized touch measurement values (Nx(k), Ny(k)), wherein the measured coordinate values of the touch region are normalized by the following first and second equations respectively; - View Dependent Claims (8, 9)
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Specification