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:
Mar. 29, 2022
Filed:
Oct. 22, 2018
Shenzhen Goodix Techology Co., Ltd., Guangdong, CN;
Qingbin Li, Guangdong, CN;
Dekun Chen, Guangdong, CN;
Shenzhen Goodix Technology Co., Ltd., Shenzhen, CN;
Abstract
A method for measuring a power-on reset time includes: detecting a power supply pin voltage of a chip, and recording a time point at which the power supply pin voltage reaches a preset voltage as a first time point; detecting an output signal of a preset pin of the chip, and recording a time point at which the preset pin completes a pulse output for a first time after the chip is powered on, as a second time point, and recording a time point the preset pin completes a pulse output for a second time, as a third time point; wherein widths of the pulse output for the first time and for the second time are the same; and computing the power-on reset time of the chip according to the first time point, the second time point and the third time point.