AX88180在嵌入式系统中的应用 1 概述        AX88180是台湾ASIX公司推出的一款高性能低成本的Non-PCI千兆以太网控制器,符合IEEE802.3／IEEE 802.3u／IEEE 802.3ab协议,适用于多种需要高速接入网络的嵌入式系统,在串流媒体、多媒体网络、高频宽传输等领域有广泛的应用,如影音内容分发、IP机顶盒、数字录放机、DVD录放机、高清晰电视、数字媒体转接器、家用网关以及IP电视等

Query by content, or content-based retri has recently been proposed as an alternative to text-based retri for media such as images, video and audio. Text-based retri is no longer appropriate for indexing such media, for several reasons. Firstly