| 视频解码器SAA7111在视频采集系统中的应用 |
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| 引用本文： | 吴海明,陈芗羽.视频解码器SAA7111在视频采集系统中的应用[J].兵工自动化,2009,28(5):81-82. |
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| 作者姓名： | 吴海明 陈芗羽 |
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| 作者单位： | 中国兵器工业第五八研究所,军用电子产品事业部,四川,绵阳,621000 |
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| 摘 要： | 视频解码器是视频采集系统中必不可少的部分，其作用是将复合视频、Y／C分量等模拟视频信号进行A／D转换，提取图像信号并且分离其中的同步信号和时钟信号。NXP公司的SAA7111集A／D转换与解码功能于一身，通过I^2C总线对内部寄存器进行初始化配置，操作简单。具有体积小、成本低、外围器件少等特点，适用于板卡或小型手持终端等数字化多媒体应用场合。
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| 关 键 词： | 视频采集 解码 A/D转换 视频信号 寄存器 |
Application of Video Decoder SAA7111 in Video Acquisition System |
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| WU Hai-ming,CHEN Xiang-yu.Application of Video Decoder SAA7111 in Video Acquisition System[J].Ordnance Industry Automation,2009,28(5):81-82. |
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| Authors: | WU Hai-ming CHEN Xiang-yu |
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| Affiliation: | Dept.of Military Electronic Products;No.58 Research Institute of China Ordnance Industries;Mianyang 621000;China |
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| Abstract: | Video decoder is a necessary part of video acquisition system, and its function includes AID conversion of analog video signals such as composite video and Y/C component; extracting image signal; separating synchronous signal and time signal. Co. NXP＇ SAA7111 has functions such as AID conversion and decoding; initial configuration of internal register through I^2C bus. It has characteristics including small volume, low cost, simple operation and fewer peripheral equipments, etc; and it is suitable for digital multimedia such as integrated circuit board and handhold terminal. |
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| Keywords: | Video acquisition Decoding A/D conversion Video signal Register |
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