Method and device for position detection
AssigneeEgalax_Empia Technology Inc.
InventorsChin-Fu Chang, Cheng-Han Lee, Chi-Hao Tang, Shun-Lung Ho
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Abstract
A method and device for position detection are disclosed. A self-capacitance detection can be performed by a sensing device. According to the result of the self-capacitance detection, a first mutual-capacitance detection can be performed for determining one or more first 1-D positions. According to the result of the first mutual-capacitance detection, a second mutual-capacitance detection can be performed for determining one or more second 1-D positions corresponding to each first 1-D position.
Claims12
A method for position detection, comprising:
- providing a sensing device including a plurality of sensors including a plurality of first sensors and a plurality of second sensors, these first and second sensors intersecting each other at a plurality of intersecting points;
- determining at least one first sensor corresponding to at least one external touch based on signals of these first sensors by self-capacitance detection;
- and
- determining at least one second 1-D position while each of the at least one determined first sensor is provided with a driving signal based on signals of these second sensors by mutual-capacitance detection.
A device for position detection, comprising:
- a sensing device including a plurality of sensors including a plurality of first sensors and a plurality of second sensors, these first and second sensors intersecting each other at a plurality of intersecting points;
- and
- a controller for performing at least the following operations:
- determining at least one first sensor corresponding to at least one external touch based on signals of these first sensors by self-capacitance detection;
- and
- determining at least one second 1-D position while each of the at least one determined first sensor is provided with a driving signal based on signals of these second sensors by mutual-capacitance detection.
Dependencies are inferred from the claim text.