发明名称 |
Extended dynamic range image sensor system |
摘要 |
An extended dynamic range imager. An array of pixels provides an output signal for each pixel related to an amount of light captured for each pixel during an integration period. A row of extended dynamic range (XDR) sample and hold circuits having an XDR sample and hold circuit for each column of the array captures an XDR signal related to a difference between the output signal and an XDR clamp level to which the pixel is reset at a predetermined time before the end of the integration period. A row of linear sample and hold circuits having a linear sample and hold circuit for each column of the array captures a linear signal related to a difference between the output signal and an initial output signal to which the pixel is reset at the beginning of the integration period.
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申请公布号 |
US6441852(B1) |
申请公布日期 |
2002.08.27 |
申请号 |
US20000497898 |
申请日期 |
2000.02.04 |
申请人 |
SARNOFF CORPORATION |
发明人 |
LEVINE PETER A.;SAUER DONALD J.;MCCAFFREY NATHANIEL J. |
分类号 |
H04N5/335;(IPC1-7):H04N5/335 |
主分类号 |
H04N5/335 |
代理机构 |
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