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:
Jun. 27, 2023
Filed:
May. 24, 2021
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventor:
Taehee Cho, San Jose, CA (US);
Assignee:
SK hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 25/772 (2023.01); H03M 1/56 (2006.01); H04N 25/65 (2023.01); H04N 25/75 (2023.01); H04N 25/709 (2023.01); H04N 25/778 (2023.01);
U.S. Cl.
CPC ...
H04N 25/772 (2023.01); H03M 1/56 (2013.01); H04N 25/65 (2023.01); H04N 25/709 (2023.01); H04N 25/75 (2023.01); H04N 25/778 (2023.01);
Abstract
An image sensor includes: a pixel outputting a pixel signal; a ramp voltage generation circuit suitable for generating a ramp voltage that changes at a first slope in a first section and generating the ramp voltage that changes at a second slope having a greater absolute value than the first slope in a second section following the first section; an operation amplifier suitable for comparing the pixel signal with the ramp voltage during the first section and the second section; and a counter circuit suitable for generating a digital code corresponding to the pixel signal in response to an output of the operation amplifier.