Invention Grant
- Patent Title: Finger biometric sensing device including coupling capacitor and reset circuitry and related methods
- Patent Title (中): 手指生物识别装置包括耦合电容和复位电路及相关方法
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Application No.: US13934412Application Date: 2013-07-03
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Publication No.: US09202103B2Publication Date: 2015-12-01
- Inventor: Patrick J. Landy
- 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: G06F3/041
- IPC: G06F3/041 ; G06K9/00
Abstract:
A finger biometric sensing device may include an array of finger biometric sensing pixel electrodes and amplifiers coupled together in series and to be selectively coupled to respective ones of the array of finger biometric sensing pixels. The finger biometric sensing device may further include at least one coupling capacitor between an output of a given amplifier and a corresponding input of a next amplifier of the plurality thereof, and reset circuitry capable of selectively resetting the input of the next amplifier.
Public/Granted literature
- US20150009186A1 FINGER BIOMETRIC SENSING DEVICE INCLUDING COUPLING CAPACITOR AND RESET CIRCUITRY AND RELATED METHODS Public/Granted day:2015-01-08
Information query
