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:
Apr. 28, 2020
Filed:
Sep. 04, 2018
Pixart Imaging Inc., Hsin-Chu County, TW;
Chih-Yuan Chuang, Hsin-Chu County, TW;
Cheng-Nan Tsai, Hsin-Chu County, TW;
Ming-Tsan Kao, Hsin-Chu County, TW;
Ren-Hau Gu, Hsin-Chu County, TW;
Yen-Min Chang, Hsin-Chu County, TW;
PIXART IMAGING INC., Hsin-Chu County, TW;
Abstract
A biometric detection module including a light source module, a detection region and a control module is provided. The light source module is configured to emit green light, red light and IR light in a time division manner to illuminate a skin surface. The detection region is configured to detect penetration light emitted from the light source module for illuminating the skin surface and passing through body tissues to correspondingly generate a green light signal, a red light signal and an IR light signal. The control module is configured to determine a filtering parameter according to the green light signal to accordingly filter the red light signal and the IR light signal, and calculate a biometric characteristic according to at least one of the green light signal, a filtered red light signal and a filtered IR light signal.