发明名称 |
IMAGE SENSOR WITH IMPROVED BLACK LEVEL CALIBRATION |
摘要 |
An imaging system capable of black level calibration includes an imaging pixel array, at least one black reference pixel, and peripheral circuitry. The imaging pixel array includes a plurality of active pixels each coupled to capture image data. The black reference pixel is coupled to generate a black reference signal for calibrating the image data. Light transmitting layers are disposed on a first side of a pixel array die including the imaging system and cover at least the imaging pixel array and the black reference pixel. A light shielding layer is disposed on the first side of the pixel array die and covers a portion of the light transmitting layers and the black reference pixel without covering the imaging pixel array. |
申请公布号 |
US2013033629(A1) |
申请公布日期 |
2013.02.07 |
申请号 |
US201213650056 |
申请日期 |
2012.10.11 |
申请人 |
OMNIVISION TECHNOLOGIES, INC.;OMNIVISION TECHNOLOGIES, INC. |
发明人 |
ZHENG WEI;TAI HSIN-CHIH;QIAN YIN;LI HONGJUN;RHODES HOWARD E. |
分类号 |
H04N5/335;H04N5/225 |
主分类号 |
H04N5/335 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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