发明名称 |
AUTOMATIC GAIN CONTROL CIRCUIT IN VIDEO SIGNAL PROCESSING DEVICE |
摘要 |
In an automatic gain control circuit comprising a black level detecting unit which detects a black level from a video signal, a white level detecting unit which detects a white level from the video signal, and an analog-to-digital converter which adjusts a dynamic range of the video signal based on a difference value between the black level and the white level, a video signal for adjustment including a black level which indicates a minimum brightness of a video image and a white level which indicates a maximum brightness of the video image is input and the dynamic range is adjusted. |
申请公布号 |
US2009096926(A1) |
申请公布日期 |
2009.04.16 |
申请号 |
US20080249528 |
申请日期 |
2008.10.10 |
申请人 |
SANYO ELECTRIC CO., LTD.;SANYO SEMICONDUCTOR CO., LTD. |
发明人 |
MORI HIROTOSHI;EBINUMA HIROYUKI |
分类号 |
H03M1/12;H04N5/52 |
主分类号 |
H03M1/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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