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:
Dec. 14, 2021
Filed:
Dec. 13, 2018
SK Hynix Inc., Icheon-si, KR;
Tae Gyu Kim, Namyangju-si, KR;
SK hynix Inc., Icheon-si, KR;
Abstract
An analog-to-digital conversion (ADC) circuit and a CMOS image sensor are disclosed. The ADC circuit includes a first column line configured to receive a first pixel signal from a first pixel, a second column line configured to receive a second pixel signal from a second pixel located adjacent to the first pixel, and a correlated double sampling (CDS) circuit configured to perform a CDS operation by comparing the first pixel signal, the second pixel signal, a first ramp signal, and a second ramp signal with one another. The CDS circuit may perform the CDS operation on the first pixel signal by selecting the first column line in a first operation period, and may perform the CDS operation on the first pixel signal and the second pixel signal by selecting the first column line and the second column line in a second operation period.