Invention Grant
US09322794B2 Biometric finger sensor including array shielding electrode and related methods
有权
生物测量手指传感器包括阵列屏蔽电极及相关方法
- Patent Title: Biometric finger sensor including array shielding electrode and related methods
- Patent Title (中): 生物测量手指传感器包括阵列屏蔽电极及相关方法
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Application No.: US13718307Application Date: 2012-12-18
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Publication No.: US09322794B2Publication Date: 2016-04-26
- Inventor: Dale R. Setlak , Giovanni Gozzini
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: US CA Cupertino
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Main IPC: G01N27/02
- IPC: G01N27/02 ; G06K9/00 ; G06F21/32
Abstract:
A biometric finger sensor may include an array of biometric finger sensing pixels and an array shielding electrode outside the array of biometric finger sensing pixels. The biometric finger sensor may further include a finger drive electrode outside the array shielding electrode. Finger drive circuitry may generate a finger drive signal for the finger drive electrode and generate a compensating finger drive signal for the shielding electrode.
Public/Granted literature
- US20140171158A1 BIOMETRIC FINGER SENSOR INCLUDING ARRAY SHIELDING ELECTRODE AND RELATED METHODS Public/Granted day:2014-06-19
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