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:
Sep. 30, 2025
Filed:
May. 12, 2022
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
National Tsing Hua University, Hsinchu, TW;
Chih-Cheng Hsieh, Hsinchu, TW;
Min-Yang Chiu, Taichung, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
NATIONAL TSING HUA UNIVERSITY, Hsinchu, TW;
Abstract
A method is provided to operate an image sensor, including the following steps: comparing a first threshold with multiple first frame-difference signals to generate a first region of interest (ROI) address, wherein each of multiple first frame-difference signals is generated by a corresponding pixel, in multiple pixels, operating during a first time frame and a second time frame, wherein multiple pixels are arranged in multiple columns and multiple rows; identifying edge columns and edge rows in the first ROI address; adjusting, according to the edge columns and the edge rows, the first ROI address to generate a second ROI address; and outputting a ROI image according to the second ROI address and multiple second frame-difference signals generated by multiple pixels operating during the second time frame and a third time frame after the second time frame.