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:
Feb. 28, 2023
Filed:
Jun. 20, 2022
Applicant:
Pixart Imaging Inc., Hsin-Chu County, TW;
Inventor:
Wen-Han Yao, Hsin-Chu County, TW;
Assignee:
PIXART IMAGING INC., Hsin-Chu County, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/378 (2011.01); H01L 27/146 (2006.01); H04N 5/235 (2006.01); H04N 5/376 (2011.01); H01L 27/148 (2006.01);
U.S. Cl.
CPC ...
H04N 5/378 (2013.01); H01L 27/14612 (2013.01); H01L 27/14643 (2013.01); H01L 27/14831 (2013.01); H04N 5/2353 (2013.01); H04N 5/3765 (2013.01);
Abstract
There is provided a pixel circuit including a first circuit and a second circuit. The first circuit is used to output a first voltage associated with exposure intensity. The second circuit is used to output a second voltage associated with exposure time interval. The processor multiples the first voltage to a ratio between a reference voltage and the second voltage to obtain an actual light intensity, wherein the reference voltage is a voltage value outputted by the second circuit of a dummy pixel.