Invention Grant
US09264642B2 Imaging device, imaging system, and method for driving imaging device for generating and converting signals based on photoelectric and noise
有权
成像装置，成像系统和用于驱动基于光电和噪声产生和转换信号的成像装置的方法
- Patent Title: Imaging device, imaging system, and method for driving imaging device for generating and converting signals based on photoelectric and noise
- Patent Title (中): 成像装置，成像系统和用于驱动基于光电和噪声产生和转换信号的成像装置的方法
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Application No.: US13776509Application Date: 2013-02-25
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Publication No.: US09264642B2Publication Date: 2016-02-16
- Inventor: Katsuhito Sakurai , Seiji Hashimoto , Atsushi Furubayashi
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon USA, Inc. I.P. Division
- Priority: JPPCT/JP2012/054978 20120228
- Main IPC: H04N3/14
- IPC: H04N3/14 ; H04N5/335 ; H04N5/378 ; H04N5/365 ; H04N5/3745 ; H01L27/146
Abstract:
Conventionally, in order to obtain a difference signal between an A+N signal and an N signal and a difference signal between an A+B+N signal and the A+N signal, the A+N signal needs to be held in two different capacitors. Hence, there is a problem in that, due to variations in capacitance of the two capacitors, the difference signal between the A+N signal and the N signal and the difference signal between the A+B+N signal and the A+N signal may not accurately be obtained. An imaging device generates a signal obtained by subtracting the same digital N signal from each of the digital A+N signal and the digital A+B+N signal.
Public/Granted literature
- US20130222662A1 IMAGING DEVICE, IMAGING SYSTEM, AND METHOD FOR DRIVING IMAGING DEVICE Public/Granted day:2013-08-29
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