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:
Nov. 26, 2013
Filed:
Sep. 12, 2012
Min-ho Kwon, Seoul, KR;
Seog-heon Ham, Suwon-si, KR;
Jeong-jin Roh, Ansan-si, KR;
Jae-jin Yeo, Ansan-si, KR;
Yong-suk Choi, Ansan-si, KR;
Gun-hee Han, Seoul, KR;
Min-Ho Kwon, Seoul, KR;
Seog-Heon Ham, Suwon-si, KR;
Jeong-Jin Roh, Ansan-si, KR;
Jae-Jin Yeo, Ansan-si, KR;
Yong-Suk Choi, Ansan-si, KR;
Gun-Hee Han, Seoul, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Industry-Academic Cooperation Foundation, Yonsei University, Seoul, KR;
Abstract
An image sensor includes a delta-sigma analog-to-digital converter (ADC) including a delta-sigma modulator (DSM) and a voltage adjusting circuit. The DSM is configured to perform delta-sigma modulation on an analog signal from a unit pixel. The delta-sigma ADC is configured to convert the analog signal to a digital signal. The voltage adjusting circuit includes a replica inverter having a same configuration as at least one inverter included in the DSM. The voltage adjusting circuit is configured to adjust a power supply voltage and an input voltage provided to the at least one inverter based on a current flowing in the replica inverter.