The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 2021
Filed:
Apr. 06, 2020
Egis Technology Inc., Taipei, TW;
Igistec Co., Ltd., Hsinchu County, TW;
Ming-Yuan Cheng, Hsinchu County, TW;
Chung-Yi Wang, Hsinchu County, TW;
Sung-Hua Chen, Hsinchu County, TW;
Yu-Hsuan Lin, Hsinchu County, TW;
Egis Technology Inc., Taipei, TW;
Igistec Co., Ltd., Hsinchu County, TW;
Abstract
The invention provides a fingerprint sensing device. A control circuit controls a part of point light sources to irradiate a fingerprint of a user. Reflected light generated by using the plurality of point light sources to irradiate the fingerprint of the user forms a light-emitted pattern including a plurality of reflected light patterns on a sensing layer, wherein each of the reflected light patterns is provided by a corresponding point light source, and each of the sensing units senses the reflected light patterns corresponding to at least two point light sources.