发明名称 |
Active pixel sensor read-out channel |
摘要 |
<p>An active pixel sensor read-out channel. The active pixel sensor read-out channel includes an active pixel Ä2Ü. The active pixel Ä2Ü drives an active pixel output to a signal voltage having an amplitude proportional to an intensity of light received by the active pixel Ä2Ü. The active pixel Ä2Ü drives the active pixel output to a reference voltage when the active pixel is not exposed to light. The active pixel output is connected to a sample and hold circuit Ä10Ü. The sample and hold circuit Ä10Ü samples and stores the signal voltage and samples and stores the reference voltage. A buffer amplifier Ä20Ü generates a difference voltage between the sampled and stored signal voltage and the sampled and stored reference voltage. <IMAGE></p> |
申请公布号 |
EP0933928(B1) |
申请公布日期 |
2005.03.23 |
申请号 |
EP19990300352 |
申请日期 |
1999.01.19 |
申请人 |
AGILENT TECHNOLOGIES, INC. (A DELAWARE CORPORATION) |
发明人 |
CHOU, ERIC Y. |
分类号 |
H01L27/146;H04N5/357;H04N5/365;H04N5/3745;H04N5/378;(IPC1-7):H04N5/217;H04N3/15 |
主分类号 |
H01L27/146 |
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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