公开(公告)号：US20150178542A1

公开(公告)日：2015-06-25

申请号：US14135783

申请日：2013-12-20

Applicant: APPLE INC.

Inventor： Gregory T. Minteer ,  Dale R. SETLAK ,  Albert M. STRAUB

IPC: G06K9/00

CPC classification number: G06K9/0002

Abstract: A finger biometric sensor may include an array of finger biometric sensing pixels and processing circuitry coupled thereto. The processing circuitry may be capable of acquiring initial data from the array based upon an initial drive signal level and with a finger positioned adjacent the array, and determining an updated drive signal level based upon the initial data. The processing circuitry may also be capable of acquiring finger biometric data from the array of finger biometric sensing pixels based upon the updated drive signal level and with the finger positioned adjacent the array.

Abstract translation: 手指生物测定传感器可以包括手指生物测量感测像素阵列和与其耦合的处理电路。 处理电路可以能够基于初始驱动信号电平和与阵列相邻定位的手指从阵列获取初始数据，并且基于初始数据确定更新的驱动信号电平。 处理电路还可以基于更新的驱动信号电平并且手指位于阵列附近，从手指生物特征感测像素阵列获取手指生物特征数据。