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:
Oct. 03, 2023
Filed:
Mar. 25, 2022
Seiko Epson Corporation, Tokyo, JP;
Loic Remi Robert Christian Michaut, Richmond, CA;
Hideki Matsuda, Chino, JP;
Abstract
The image processing circuit includes a gamma correction circuit configured to perform a gamma correction on input image data using a look-up table, and then output output image data, an output image histogram calculation circuit configured to calculate an output image histogram, an input image histogram calculation circuit configured to calculate an input image histogram, a reference histogram calculation circuit configured to calculate a reference histogram from the input image histogram based on the look-up table, and a histogram comparison circuit configured to perform a comparison between the output image histogram and the reference histogram.