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US 2012/0075478 A1Published application
Image Sensor, Method Thereof And Devices Having The Same
AssigneeSamsung Electronics Co., Ltd.
InventorJung Chak Ahn
Life of this patent
Estimating the term…
Abstract
An image sensor is provided. The image sensor includes an active pixel configured to pass wavelengths of light and generate an image signal corresponding to the passed wavelengths of light, a first optical black pixel configured to generate a first optical black signal by blocking the light by metal, and a second optical black pixel configured to generate a second optical black signal by blocking the light by a light blocking element.
Claims21
An image sensor comprising:
- an active pixel configured to pass wavelengths of incident light, and generate an image signal corresponding to the passed wavelengths of light after;
- a first optical black pixel configured to generate a first optical black signal by blocking the incident light using a metal;
- and
- a second optical black pixel configured to generate a second optical black signal by blocking the incident light using a light blocking element.
1 more element
(canceled)
An image sensor comprising:
- one or more active pixels configured to detect light and generate an image signal based on the detected light;
- first and second optical black pixels configured to block light and generate first and second optical black signals, respectively, the first and second optical black pixels being structured differently;
- and
- an auto dark level compensation unit configured to choose one of the first and second optical black signals as a selected optical black signal based on the image signal, and perform a dark level compensation operation on the image signal using the selected optical black signal.
1 more element
Dependencies are inferred from the claim text.