| 发明名称 |
ACTIVE BASELINE SIGNAL CANCELLATION IN FINGERPRINT SENSORS |
| 摘要 |
In one aspect, a fingerprint sensor chip includes an array of senor pixels. At least one of the sensor pixels is designated as a reference sensor pixel and remaining sensor pixels in the array are designated to contribute to fingerprint data, The sensor chip includes a signal processing unit including amplifier circuitry to cancel out baseline signals from output signals of remaining sensor pixels based at least on an output signal of the reference sensor pixel. |
| 申请公布号 |
US2017068837(A1) |
申请公布日期 |
2017.03.09 |
| 申请号 |
US201615344506 |
申请日期 |
2016.11.04 |
| 申请人 |
Shenzhen Huiding Technology Co., Ltd. |
发明人 |
PI Bo;YANG Mengta |
| 分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A fingerprint sensor chip, comprising:
an array of senor pixels, wherein at least one of the sensor pixels is designated as a reference sensor pixel and remaining sensor pixels in the array are designated to contribute to fingerprint data; and a signal processing unit including circuitry configured to cancel out baseline signals from output signals of remaining sensor pixels based at least on an output signal of the reference sensor pixel. |
| 地址 |
Shenzhen CN |
