| 摘要 |
PURPOSE: A pattern detecting method using a touch sensor and a touch sensor of a conductive method using the same are provided to recognize a fingerprint by using a touch sensor of a conductive capacitive type. CONSTITUTION: Each sensor node(121) recognizes the variation of capacitance according to a distance with an object surface having a height pattern. A vertical distance of the sensor node and the object surface is calculated according to the variation of capacitance. The height pattern of the object surface is generated by combining the vertical distance of each sensor node. The height pattern is a fingerprint of a person.
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