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. 26, 2022
Filed:
May. 03, 2021
Silicon Optronics, Inc., Hsinchu, TW;
Sheng-Yi Peng, Hsinchu, TW;
SILICON OPTRONICS, INC., Hsinchu, TW;
Abstract
A method for black-level calibration for an image-sensing device is provided. The image-sensing device includes a pixel array that has a first non-light-sensing region, a second non-light-sensing region, and an image-pixel region. The method includes the following steps: receiving a first analog signal, a second analog signal, and a third analog signal respectively from the first non-light-sensing region, the second non-light-sensing region, and the image-pixel region every predetermined scanning period; utilizing an analog-to-digital converter (ADC) of the image-sensing device to convert the first analog signal, the second analog signal, and the third analog signal to a first digital signal, a second digital signal, and a third digital signal, respectively; and performing a black-level-calibration (BLC) process on the first digital signal, the second digital signal, and the third digital signal to generate a black-level-calibrated digital signal, wherein the BLC process is implemented using a Kalman filter.