发明授权
US07893978B2 Image capture device having amplification circuit for amplifying signal from photoelectric conversion portion
有权
具有用于放大来自光电转换部分的信号的放大电路的图像捕获装置
- 专利标题: Image capture device having amplification circuit for amplifying signal from photoelectric conversion portion
- 专利标题(中): 具有用于放大来自光电转换部分的信号的放大电路的图像捕获装置
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申请号: US12055521申请日: 2008-03-26
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公开(公告)号: US07893978B2公开(公告)日: 2011-02-22
- 发明人: Hiroki Hiyama , Akira Okita , Hideaki Takada , Katsuhito Sakurai
- 申请人: Hiroki Hiyama , Akira Okita , Hideaki Takada , Katsuhito Sakurai
- 申请人地址: JP Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Canon U.S.A., Inc. I.P. Division
- 优先权: JP2004-021689 20040129
- 主分类号: H04N5/335
- IPC分类号: H04N5/335 ; H04N5/217 ; H01L31/062 ; H01L27/00
摘要:
An image capture device includes a plurality of image capture elements for capturing an object image, a plurality of vertical output lines for reading signals out of the plurality of image capture elements, and a plurality of processing circuits. Each processing circuit includes a first capacitor element having a first electrode connected to one of the plurality of vertical output lines, a differential amplifier having a first input terminal connected to a second electrode of the first capacitor element, a second capacitor element connected between the first input terminal and an output terminal of the differential amplifier, and a first switch configured to control conduction between the first input terminal and the output terminal of the differential amplifier. The image capture device further includes a plurality of third capacitor elements configured to hold signals from the differential amplifiers of the plurality of processing circuits and to limit an output frequency band of each differential amplifier, and a horizontal output line for sequentially outputting signals from the plurality of third capacitor elements.
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