Invention Grant
- Patent Title: Image capture apparatus having first and second amplification units and control method for same
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Application No.: US16936165Application Date: 2020-07-22
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Publication No.: US11297251B2Publication Date: 2022-04-05
- Inventor: Yasuhiro Itoh
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: JPJP2019-137960 20190726
- Main IPC: H04N5/235
- IPC: H04N5/235

Abstract:
An image capture apparatus includes a photoelectric conversion unit, an acquisition unit, a first amplification unit, a second amplification unit, and an amplification factor control unit. The photoelectric conversion unit is configured to convert an optical image into an image signal. The acquisition unit is configured to acquire a value related to a correct exposure on a basis of the image signal converted from the optical image by the photoelectric conversion unit. The first amplification unit is configured to amplify the image signal with a first amplification factor. The second amplification unit is configured to amplify the image signal with a second amplification factor. The amplification factor control unit is configured to change the first amplification factor or the second amplification factor based on the value related to the correct exposure.
Public/Granted literature
- US20210029285A1 IMAGE CAPTURE APPARATUS HAVING FIRST AND SECOND AMPLIFICATION UNITS AND CONTROL METHOD FOR SAME Public/Granted day:2021-01-28
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