Invention Grant
US06946636B2 Image pickup apparatus providing a bias between different pixel areas during signal accumulation
有权
图像拾取装置在信号累积期间提供不同像素区域之间的偏置
- Patent Title: Image pickup apparatus providing a bias between different pixel areas during signal accumulation
- Patent Title (中): 图像拾取装置在信号累积期间提供不同像素区域之间的偏置
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Application No.: US09790601Application Date: 2001-02-23
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Publication No.: US06946636B2Publication Date: 2005-09-20
- Inventor: Tomoko Eguchi , Toru Koizumi , Katsuhito Sakurai , Fumihiro Inui , Hiroki Hiyama , Masaru Fujimura
- Applicant: Tomoko Eguchi , Toru Koizumi , Katsuhito Sakurai , Fumihiro Inui , Hiroki Hiyama , Masaru Fujimura
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2000-051909 20000228; JP2001-040168 20010216
- Main IPC: H01L27/146
- IPC: H01L27/146 ; H04N5/335 ; H04N5/365 ; H04N5/374 ; H04N5/3745 ; H04N5/378 ; H01L27/00 ; H01L31/00
Abstract:
In order to reduce the noise in the readout signal, the invention provides an image pickup apparatus comprising a pixel including a photoelectric conversion unit for converting the incident light and accumulating a resulting electrical signal, and a transfer switch reading the electrical signal accumulated in the photoelectric conversion unit or a signal based on such electrical signal, and potential control means for maintaining the potential of the signal line higher than that of the photoelectric conversion unit while the photoelectric conversion unit accumulates the electrical signal.
Public/Granted literature
- US20020051229A1 Image pickup apparatus Public/Granted day:2002-05-02
Information query
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