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. 05, 2023
Filed:
Jan. 13, 2021
SK Hynix Inc., Gyeonggi-do, KR;
Su Ram Cha, Gyeonggi-do, KR;
SK hynix Inc., Gyeonggi-do, KR;
Abstract
A demosaic operation circuit includes a white pixel value estimation circuit suitable for acquiring an RGB channel average value and a directional gradient value of a white pixel for each direction using source pixel data provided from a pixel array, and estimating a white pixel value based on the RGB channel average value and the directional gradient value of the white pixel; a fine adjustment circuit suitable for finely adjusting an estimated white pixel value by removing noise through a different filter based on weight values which are differently allocated according to a gradient of a center pixel and a neighboring white pixel; a chroma estimation circuit suitable for estimating a chroma by calculating a chroma array based on the source pixel data and an adjusted white pixel value; and a color correction circuit suitable for correcting a color based on a finely adjusted white pixel value and the chroma.