US 9,811,711 B2
Fingerprint detection with transparent cover
Jiandong Huang, Bellevue, WA (US); and Liying Chen, Redmond, WA (US)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on Feb. 22, 2015, as Appl. No. 14/628,293.
Prior Publication US 2016/0247010 A1, Aug. 25, 2016
Int. Cl. G06K 9/00 (2006.01); G02B 5/20 (2006.01)
CPC G06K 9/00046 (2013.01) [G02B 5/20 (2013.01); G06K 9/0004 (2013.01); G06K 9/00087 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a display module;
a transparent cover that defines an external surface of the display module;
a light source adjacent to the transparent cover, the light source being configured to inject light into the transparent cover, the transparent cover being configured to guide the light to an interaction at the transparent cover;
a filter disposed along the transparent cover, the filter being configured to selectively allow the light scattered by the interaction to pass through the filter; and
a detector configured to generate a signal indicative of the scattered light allowed through the filter.