发明名称 |
CMOS active pixel with hard and soft reset |
摘要 |
A circuit for a pixel site in an imaging array includes a light-detecting element to convert incident light to a photocurrent and a reset transistor, operatively connected to the light-detecting element, to reset a voltage associated with the light-detecting element. The reset transistor hard resets the voltage associated with the light-detecting element and soft resets the voltage associated with the light-detecting element after the generation of the hard reset of the voltage associated with the light-detecting element. A pixel voltage of a column or row line is also measured by hard resetting the column or row line voltage to a first predetermined voltage; soft resetting the column or row line voltage to a first pixel voltage; hard resetting the column or row line voltage to a second predetermined voltage; soft resetting the column or row line voltage to a second pixel voltage; and determining a difference between the first and second pixel voltages, the difference being the measured pixel voltage.
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申请公布号 |
US2005083422(A1) |
申请公布日期 |
2005.04.21 |
申请号 |
US20040752112 |
申请日期 |
2004.01.06 |
申请人 |
LEE HAE-SEUNG;FIFE KEITH G.;BROOKS LANE G.;YANG JUNGWOOK |
发明人 |
LEE HAE-SEUNG;FIFE KEITH G.;BROOKS LANE G.;YANG JUNGWOOK |
分类号 |
H04N5/353;H04N5/355;H04N5/359;H04N5/363;H04N5/374;(IPC1-7):H04N5/335 |
主分类号 |
H04N5/353 |
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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