TOUCH DETECTION CIRCUIT, FINGERPRINT MODULE AND CONTROL METHOD THEREOF

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United States of America Patent

SERIAL NO

15704462

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Abstract

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A fingerprint module includes a fingerprint sensor, a metal decorative part, a touch detection circuit, and a processing unit. The touch detection circuit generates a first trigger signal when the metal decorative part is touched; the processing unit is connected to the touch detection circuit and the fingerprint sensor; the processing unit generates a finger touch signal when the first trigger signal generated by the touch detection circuit and/or the fingerprint sensing signal generated by the fingerprint sensor is received. The present application also provides a control method of fingerprint module. In the present application, the metal decorative part and the fingerprint sensor are cooperatively used for performing a joint detection and the overall detection range of the fingerprint module is increased, thereby reducing the detection blind area of a finger and improving the detection accuracy of the fingerprint module for realizing a touch detection function.

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Patent Owner(s)

Patent OwnerAddress
SHENZHEN GOODIX TECHNOLOGY CO LTDSHENZHEN GUANGDONG 518045

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
DU, Canhong Shenzhen, CN 21 59
YI, Fujian Shenzhen, CN 1 3

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