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:
May. 20, 2025
Filed:
Mar. 31, 2022
Shenzhen Goodix Technology Co., Ltd., Shenzhen, CN;
Liangshou Chen, Shenzhen, CN;
Saiwen Lu, Shenzhen, CN;
SHENZHEN GOODIX TECHNOLOGY CO., LTD., Guangdong, CN;
Abstract
Provided are a signal adjustment method for a PPG apparatus and a PPG apparatus. The method comprises: when background light data or actual effective light data does not meet a preset background light data range or a preset first effective light data range, performing a dimming operation comprising: determining an estimated current transfer ratio; estimating a driving current required by a light source and a gain required by an analog front end; calculating estimated effective light data of a PPG apparatus according to the estimated driving current required by the light source, the gain required by the analog front end, and the estimated current transfer ratio; when the estimated effective light data meets a preset second effective light data range, generating a to-be-adjusted current/gain value according to the estimated driving current required by the light source and the gain required by the analog front end.