发明名称 |
Solid-state image-pickup device, method for driving solid-state image-pickup device, and image-pickup apparatus |
摘要 |
High-resolution AD conversion can be performed at a high speed in a CMOS image sensor in which column-parallel ADCs are mounted. In a CMOS image sensor 10 in which column-parallel ADCs are mounted, reference voltages Vref1 to Vref4 having slopes with different gradients and a reference voltage Vref5 are used. Additionally, a comparison circuit 32 that compares an output voltage Vx of a unit pixel 11 with any one of the reference voltages Vref1 to Vref4, and a comparison circuit 33 that compares the one of the reference voltages Vref1 to Vref4 with the reference voltage Vref5 are included in a column processing circuit 15. High-resolution AD conversion is performed at a high speed by respective operations of the comparison circuits 32 and 33 and an up/down counter 34. |
申请公布号 |
US8089541(B2) |
申请公布日期 |
2012.01.03 |
申请号 |
US20070441056 |
申请日期 |
2007.09.18 |
申请人 |
OIKE YUSUKE;SONY CORPORATION |
发明人 |
OIKE YUSUKE |
分类号 |
H04N3/14;H04N5/335;H04N5/369;H04N5/374;H04N5/376;H04N5/378 |
主分类号 |
H04N3/14 |
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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