发明名称 |
IMAGE SENSOR AND PIXEL THAT HAS POSITIVE TRANSFER GATE VOLTAGE DURING INTEGRATION PERIOD |
摘要 |
A pixel and image sensor formed in accordance with the present invention has two modes of operation: a normal mode and a low light mode. The present invention switches from a normal to a low light mode based upon the amount of illumination on the image sensor. Once the level of illumination is determined, a decision is made by comparing the level of illumination to a threshold whether to operate in normal mode or low light mode. In low light mode, the reset transistor (for a 3T pixel) or the transfer transistor (for a 4T pixel) is biased positive.
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申请公布号 |
US2010289911(A1) |
申请公布日期 |
2010.11.18 |
申请号 |
US20100843561 |
申请日期 |
2010.07.26 |
申请人 |
OMNIVISION TECHNOLOGIES, INC. |
发明人 |
RHODES HOWARD E. |
分类号 |
H04N5/225;H01L31/102;H03F3/08 |
主分类号 |
H04N5/225 |
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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