发明名称 |
Method and Apparatus for AD Conversion, Semiconductor Device for Detecting Distribution of Physical Quantity, and Electronic Apparatus |
摘要 |
A column analog-to-digital converter having a voltage comparator and a counter is arranged for each a vertical signal line. The voltage comparator compares a pixel signal inputted via the vertical signal line at each row control signal line with a reference voltage, thereby generating a pulse signal having a length in time axis corresponding to the magnitude of a reset component and a signal component. The counter counts a clock to measure the width of the pulse signal until the end of the comparison operation of the comparator, and stores a count at the end of the comparison. A communication and timing controller controls the voltage comparator and the counter so that, in a first process, the voltage comparator performs a comparison operation on a reset component with the counter performing a down-counting operation, and so that, in a second process, the voltage controller performs the comparison operation on a signal component with the counter performing an up-counting operation.
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申请公布号 |
US2007024731(A1) |
申请公布日期 |
2007.02.01 |
申请号 |
US20060532336 |
申请日期 |
2006.09.15 |
申请人 |
MURAMATSU YOSHINORI;FUKUSHIMA NORIYUKI;NITTA YOSHIKAZU;YASUI YUKIHIRO |
发明人 |
MURAMATSU YOSHINORI;FUKUSHIMA NORIYUKI;NITTA YOSHIKAZU;YASUI YUKIHIRO |
分类号 |
H03M1/10;H03M1/12;H03M1/56;H04N5/335;H04N5/355;H04N5/357;H04N5/363;H04N5/378 |
主分类号 |
H03M1/10 |
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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