发明授权
- 专利标题: Image-sensing system with noise eliminator
- 专利标题(中): 带噪声消除器的图像感应系统
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申请号: US661683申请日: 1984-10-17
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公开(公告)号: US4698686A公开(公告)日: 1987-10-06
- 发明人: Yukio Endo , Nozomu Harada , Okio Yoshida
- 申请人: Yukio Endo , Nozomu Harada , Okio Yoshida
- 申请人地址: JPX Kawasaki
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JPX Kawasaki
- 优先权: JPX58-195080 19831018
- 主分类号: H04N5/335
- IPC分类号: H04N5/335 ; H04N5/341 ; H04N5/363 ; H04N5/374 ; H04N5/378 ; H04N3/14
摘要:
A solid-state image sensor has an electrically floating carrier detecting electrode formed on a substrate, into which the signal carriers are transmitted, a sense amplifier circuit detecting the variation in a voltage of the electrode at the time of transferring the carriers, and a resetting electrode for resetting the potential of the electrode to a predetermined potential at every read-out period of the picture element section. A circuit arrangement for removing noise is provided to have two switches which switch to alternatively become conductive in response to control pulse signals. The first switch becomes conductive during a first period within one picture element period. During the first period the CCD output signal contains an effective image signal component. The second switch becomes conductive during a second period during which the CCD output signal contains a reset noise component, thereby forcibly fixing the level of the reset noise signal to a DC reference potential so that reset noise can be removed.
公开/授权文献
- US4037458A Silencing method and silencer device in crank press machine 公开/授权日:1977-07-26