发明名称 |
CONFIGURABLE CAPACITOR ARRAYS AND SWITCHED CAPACITOR CIRCUITS |
摘要 |
A fingerprint sensing circuit, system, and method is disclosed. The fingerprint sensor maybe include a plurality of inputs coupled to a plurality of fingerprint sensing electrodes and to an analog front end. The analog front end may be configured to generate at least one digital value in response to a capacitance of at least one of the plurality of fingerprint sensing electrodes. Additionally, the analog front end may include a quadrature demodulation circuit to generate at least one demodulated value for processing by a channel engine. The channel engine may generate a capacitance result value that is based, in part, on the demodulated value and is stored in a memory. |
申请公布号 |
WO2016085544(A1) |
申请公布日期 |
2016.06.02 |
申请号 |
WO2015US41916 |
申请日期 |
2015.07.24 |
申请人 |
CYPRESS SEMICONDUCTOR CORPORATION |
发明人 |
JOHAL, JASKAM SINGH;HANCIOGLU, ERHAN;LEONG, RENEE;KUTZ, HAROLD;THIAGARAJAN, EASHWAR;OZBEK, ONUR |
分类号 |
G06F15/80;G06G7/06;H03K19/177 |
主分类号 |
G06F15/80 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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