| 发明名称 |
FINGER BIOMETRIC SENSOR INCLUDING CAPACITANCE CHANGE SENSING PRESSURE SENSING CIRCUIT AND RELATED METHODS |
| 摘要 |
A finger biometric sensor may include a lower conductive layer, an upper conductive layer, and a spacer between the lower and upper conductive layers to define an air gap therebetween. The finger biometric sensor may also include a finger biometric sensing integrated circuit (IC) above the upper conductive layer and capable of deflecting the upper conductive layer toward the lower conductive layer to change a capacitance thereof based upon pressure applied to the finger biometric sensing IC. A pressure sensing circuit may be coupled to the lower and upper conductive layers to sense the change in capacitance. |
| 申请公布号 |
US2017091507(A1) |
申请公布日期 |
2017.03.30 |
| 申请号 |
US201514976554 |
申请日期 |
2015.12.21 |
| 申请人 |
Apple Inc. |
发明人 |
Setlak Dale R. |
| 分类号 |
G06K9/00;G06F3/041 |
主分类号 |
G06K9/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A finger biometric sensor comprising:
a lower conductive layer; an upper conductive layer; a spacer between the lower and upper conductive layers to define an air gap therebetween; a finger biometric sensing integrated circuit (IC) above the upper conductive layer and capable of deflecting the upper conductive layer toward the lower conductive layer to change a capacitance thereof based upon pressure applied to the finger biometric sensing IC; and a pressure sensing circuit coupled to the lower and upper conductive layers to sense the change in capacitance. |
| 地址 |
Cupertino CA US |
