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公开(公告)号：US10726233B2
公开(公告)日：2020-07-28
申请号：US16059881
申请日：2018-08-09
Applicant: FINGERPRINT CARDS AB
Inventor： Lynn Russell Kern , Mark Harris , Joel Parkinson
Abstract: A method for testing a sensor of a device includes: displaying a test pattern on a display of the device; reflecting, by a reflector disposed over the display, at least a portion of the displayed test pattern; and capturing, by the sensor, a test pattern frame using the displayed test pattern and the reflector.
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