发明公开
EP3312763A1 METHOD, APPARATUS, AND MOBILE TERMINAL FOR DETERMINING FOREIGN MATERIAL ON SURFACE OF FINGERPRINT SENSOR
有权
用于确定指纹传感器表面上的异物的方法，设备和移动终端
- 专利标题： METHOD, APPARATUS, AND MOBILE TERMINAL FOR DETERMINING FOREIGN MATERIAL ON SURFACE OF FINGERPRINT SENSOR
- 专利标题（中）： 用于确定指纹传感器表面上的异物的方法，设备和移动终端
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申请号： EP16856693.3申请日： 2016-07-26
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公开(公告)号： EP3312763A1公开(公告)日： 2018-04-25
- 发明人: ZHANG, Qiang , WANG, Lizhong , ZHOU, Haitao , JIANG, Kui , HE, Wei
- 申请人： Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- 申请人地址： No.18 Haibin Road Wusha Chang'an Dongguan, Guangdong 523859 CN
- 专利权人： Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- 当前专利权人： Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- 当前专利权人地址： No.18 Haibin Road Wusha Chang'an Dongguan, Guangdong 523859 CN
- 代理机构： Johnson, Richard Alan
- 优先权： CN201510681166 20151019
- 国际公布： WO2017067258 20170427
- 主分类号： G06K9/00
- IPC分类号： G06K9/00
摘要：
A method and an apparatus for determining existence of a foreign material on a surface of a fingerprint sensor, and a mobile terminal are provided. The method includes the following. A current capacitance value of the fingerprint sensor of the terminal is obtained. A first difference between the current capacitance value and a preset capacitance reference value is calculated. Determine that the foreign material is present on the surface of the fingerprint sensor when the first difference is within a preset foreign-material threshold range.
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