Invention Grant
- Patent Title: Fingerprint sensing system and method
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Application No.: US15820405Application Date: 2017-11-21
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Publication No.: US10579850B2Publication Date: 2020-03-03
- Inventor: Thomas Suwald
- Applicant: NXP B.V.
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP16200439 20161124
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
According to a first aspect of the present disclosure, a fingerprint sensing system is provided, the system comprising: a plurality of sensors and a controller, wherein the controller is configured to selectively activate at least one of the plurality of sensors; wherein the controller is further configured to develop and measure at least one first capacitance, the first capacitance developing in response to a capacitance between a surface of an active sensor and a surface of a finger; and wherein the controller is further configured to develop at least one second capacitance, the second capacitance developing in response to a capacitance between a surface of an inactive sensor and the surface of the finger. According to a second aspect of the present disclosure, a corresponding fingerprint sensing method is conceived.
Public/Granted literature
- US20180144170A1 FINGERPRINT SENSING SYSTEM AND METHOD Public/Granted day:2018-05-24
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