TERMINAL HAVING TOUCH SCREEN AND METHOD FOR IDENTIFYING TOUCH EVENT THEREIN
First Claim
1. A method for identifying a touch event in a terminal having a touch screen, the method comprising:
- determining a sensed location of a touch event on a touch screen when the touch event is sensed;
calculating a maximum changed value of a touch signal of a center node and a changed value of a touch signal of at least one peripheral node, the at least one peripheral node being located around the center node at the sensed location; and
determining whether the touch event is a hovering event of an input tool proximate to the touch screen according to the calculated maximum changed value and the calculated changed value of the touch signal of the at least one peripheral node.
1 Assignment
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Accused Products
Abstract
A terminal having a touch screen and a method for identifying a touch event thereon are provided. The method includes determining a sensed location of a touch event on a touch screen when the touch event is sensed, calculating a maximum changed value of a touch signal of a center node and a changed value of a touch signal of at least one peripheral node, the peripheral node being located around the center node at the sensed location, and determining whether the touch event is a hovering event of an input tool proximate to the touch screen according to the calculated maximum changed value and the calculated changed value of the touch signal of the at least one peripheral node. The terminal may analyze a touch signal changed according to an input tool in order to identify a type of the touch event. Accordingly, the terminal may identify an unintentional touch event.
23 Citations
20 Claims
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1. A method for identifying a touch event in a terminal having a touch screen, the method comprising:
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determining a sensed location of a touch event on a touch screen when the touch event is sensed; calculating a maximum changed value of a touch signal of a center node and a changed value of a touch signal of at least one peripheral node, the at least one peripheral node being located around the center node at the sensed location; and determining whether the touch event is a hovering event of an input tool proximate to the touch screen according to the calculated maximum changed value and the calculated changed value of the touch signal of the at least one peripheral node. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A terminal for identifying a touch event, the terminal comprising:
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a touch screen for sensing coordinates of a sensed location of the touch event through a touch sensor composed of a plurality of nodes; and a controller for calculating a maximum changed value of a touch signal of a center node, for calculating a changed value of a touch signal of at least one peripheral node located around the center node at the sensed location, and for determining whether the touch event is a hovering event of an input tool proximate to the touch screen according to the calculated maximum changed value and the calculated changed value of the touch signal of the at least one peripheral node. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A terminal including a touch screen having a touch sensor composed of a plurality of nodes for receiving a touch event, the terminal comprising:
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a controller for controlling the terminal, the controller comprising; a touch location determining unit for determining coordinates of a location of the touch event; and a hovering determining unit for determining whether the touch event is a hovering event when an input tool is proximate to the touch screen; and a memory for storing touch identifying information including a preset hovering threshold value. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification