Invention Grant
- Patent Title: Image taking apparatus, correction circuit and correction method
- Patent Title (中): 摄像装置,校正电路及校正方法
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Application No.: US12546729Application Date: 2009-08-25
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Publication No.: US08218029B2Publication Date: 2012-07-10
- Inventor: Takahiro Nagai
- Applicant: Takahiro Nagai
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Frommer Lawrence & Haug LLP
- Agent William S. Frommer
- Priority: JPP2008-217256 20080826
- Main IPC: H04N5/235
- IPC: H04N5/235

Abstract:
Disclosed herein is an image taking apparatus including an image taking device, a gain adjustment circuit, and a correction circuit. The image taking device operates with timings based on a frame rate determined in advance and the total number of horizontal lines, has an electronic shutter allowing a shutter speed to be adjusted, receives light in a period equal to the shutter speed of the electronic shutter and carries out an opto-electrical conversion process on the light for every horizontal line in order to generate a predetermined signal. The gain adjustment circuit adjusts the gain of the electrical signal received from the image taking device. The correction circuit compares an image taking video signal with a reference video signal to compute a flicker component as a component oriented in the vertical direction of an image represented by the image taking video signal in a flicker correction process of eliminating flickers.
Public/Granted literature
- US20100053369A1 IMAGE TAKING APPARATUS, CORRECTION CIRCUIT AND CORRECTION METHOD Public/Granted day:2010-03-04
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