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. 08, 2025
Filed:
Nov. 03, 2023
Shenzhen Goodix Technology Co., Ltd., Shenzhen, CN;
Hongsong Nie, Shenzhen, CN;
Ke Zhang, Shenzhen, CN;
SHENZHEN GOODIX TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
A clock calibration method and an electronic device, for calibrating a clock of a fingerprint chip, which can improve an accuracy of the clock of the fingerprint chip, thereby improving performance of the fingerprint chip. The clock calibration method, for calibrating a clock of a fingerprint chip provided in an electronic device, includes: sending a configuration command to the fingerprint chip to cause the fingerprint chip to map a current clock of the fingerprint chip to a target pin of the fingerprint chip; detecting the target pin to acquire the current clock of the fingerprint chip; determining a calibration value based on a target clock and the current clock of the fingerprint chip; and sending the calibration value to a calibration register in the fingerprint chip, the calibration value being used to adjust the current clock of the fingerprint chip.