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1. (WO2018137164) FINGERPRINT RECOGNITION SYSTEM

Pub. No.:    WO/2018/137164    International Application No.:    PCT/CN2017/072524
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Wed Jan 25 00:59:59 CET 2017
IPC: G06K 9/00
Applicants: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
深圳市汇顶科技股份有限公司
Inventors: FANG, Hsin-Wen
方信文
LIANG, Yu-An
梁佑安
YANG, Meng-Ta
杨孟达
Title: FINGERPRINT RECOGNITION SYSTEM
Abstract:
Provided is a fingerprint recognition system, comprising : a fingerprint sensing circuit, having a power supply terminal and a floating ground terminal, for generating a first signal; and a signal generating circuit, having a first output terminal and a second output terminal, the first output terminal being coupled to the power supply terminal, the second output terminal being coupled to the floating ground terminal, the signal generating circuit being used for generating, according to the first signal, a floating power signal to the power supply terminal, and generating, according to the first signal, a floating ground signal to the floating ground terminal, the floating power signal having a floating source amplitude, the floating ground signal having a floating ground amplitude; the signal generating circuit having a breakdown voltage, the floating source amplitude and the floating ground amplitude being greater than the breakdown voltage.