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. 14, 2012
Filed:
May. 18, 2009
Joo Young Ha, Gyunggi-Do, KR;
Bong Soon Kang, Busan, KR;
Kyung Rin Kim, Busan, KR;
Won Tae Choi, Gyunggi-Do, KR;
Byung Hoon Kim, Gyunggi-Do, KR;
Joo Young Ha, Gyunggi-Do, KR;
Bong Soon Kang, Busan, KR;
Kyung Rin Kim, Busan, KR;
Won Tae Choi, Gyunggi-Do, KR;
Byung Hoon Kim, Gyunggi-Do, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon, KR;
Abstract
An apparatus and method for controlling auto exposure (AE) that is used in digital imaging devices. The apparatus controlling the luminance of an image being outputted from an image sensor by controlling exposure time and analog gain of the image sensor includes: a luminance operation unit operating and outputting a mean luminance of the image outputted from the image sensor; a shutter index determination unit comparing a predetermined target luminance with the mean luminance of the outputted image and determining a shutter index in different manners according to the magnitude of the difference between the target luminance and the mean luminance of the outputted image; and an exposure time/analog gain determination unit generating exposure time and analog gain corresponding to the shutter index determined in the shutter index determination unit and applying the generated exposure time and analog gain to the image sensor.