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:
Oct. 18, 2022
Filed:
Jan. 28, 2020
Quanta Computer Inc., Taoyuan, TW;
Kai-Ju Cheng, Taoyuan, TW;
Hsin-Lun Hsieh, Taoyuan, TW;
Chin-Yuan Ting, Taoyuan, TW;
Tsung-Hsin Lu, Taoyuan, TW;
Huan-Tang Wu, Taoyuan, TW;
Shao-Ang Chen, Taoyuan, TW;
Yu-Hsun Chen, Taoyuan, TW;
Jia-Chyi Wang, Taoyuan, TW;
Chih-Wei Sung, Taoyuan, TW;
Huan-Pin Shen, Taoyuan, TW;
QUANTA COMPUTER INC., Taoyuan, TW;
Abstract
A method for distinguishing plaque and calculus is provided. The method is used in a device and includes the following steps: emitting, by a blue light-emitting diode, blue light to illuminate teeth in an oral cavity, wherein the blue light is used to generate autofluorescence of plaque and calculus on the teeth; sensing, by an image sensor, the autofluorescence of plaque and calculus; and distinguishing, by a processor, a plaque area and a calculus area on the teeth based on the autofluorescence.