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MPEG-4开创通信新时代
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作者 Andrew Burt 《电子产品世界》 2003年第12B期30-31,共2页
MPEG-4是第三代、也是最新的音频/视频标准,由国际化标准组织的动态图像专家组(MPEG)在曾取得巨大成功的MPEG-1和MPEG-2标准基础上开发而成。该标准指定了几种表示对象的方式,描述场景中物体的组成,而且在传输时,令对象数据进行复用和同... MPEG-4是第三代、也是最新的音频/视频标准,由国际化标准组织的动态图像专家组(MPEG)在曾取得巨大成功的MPEG-1和MPEG-2标准基础上开发而成。该标准指定了几种表示对象的方式,描述场景中物体的组成,而且在传输时,令对象数据进行复用和同步,并实现多媒体用户的互动操作。依靠基于对象的编码方法,MPEG-4规定了可行的新方法来创建、操作、复用音频/视频内容。此外,MPEG-4能为服务供应商提供可被解释和翻译为适当内部信令机制的传输信息。 展开更多
关键词 MPEG-4 音频/视频标准 数字电视 数据划分技术 图像压缩
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Research and Implementation of inter-VLAN communication
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作者 LI Kangle 《International English Education Research》 2014年第8期71-73,共3页
In order to reduce broadcast storms, improve network security, virtual LAN technology has been widely used in LAN planning. But in many networks, it was be required that computers in different VLAN (Virtual Local Are... In order to reduce broadcast storms, improve network security, virtual LAN technology has been widely used in LAN planning. But in many networks, it was be required that computers in different VLAN (Virtual Local Area Network) could be communicated. This article mainly introduced the VLAN classification method inter-VLAN data communication technology, and explained in detail with two simple examples the concrete configure method of the communication between the same cross-switch VLAN traffic and inter-VLAN. 展开更多
关键词 virtual local area network broadcast domain Three-tier Exchange
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