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:
Aug. 11, 2020
Filed:
Aug. 14, 2017
Shenzhen Goodix Technology Co., Ltd., Shenzhen, Guangdong, CN;
Shu Pang, Guangdong, CN;
Xiaochun Cai, Guangdong, CN;
SHENZHEN GOODIX TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
Embodiments of the present invention relate to the technical field of fingerprint sensor detection, and in particular, relate to a method and system for detecting a thickness of a protection layer of a fingerprint sensor. The method includes the following steps: step a: collecting fingerprint data via a fingerprint sensor, the fingerprint sensor comprising a plurality of chip sensing units, arranged in an array; step b: calculating a derivative of the fingerprint data, normalizing the derivative of the fingerprint data, and calculating an integration according to the normalized derivative of the fingerprint data; and step c: acquiring a thickness of a protection layer of the fingerprint sensor according to the integration result.