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一、多媒体通信概述 多媒体通信是20世纪90年代特别是近几年来通信领域的热门话题,各种通信网络都在研究和开发支持多媒体通信业务的技术。 多媒体通信不同于多媒体。所谓的多媒体通信,是指同时支持动态图像、语音、数据、传真等多种业务的通信。多媒体通信对网络的要求主要有两点:一是传输速率要高,排除编码技术因素,一般地说,速率越高,图像的清晰度越好;二是信息传送要实时,必须保证图像的连续性和动感。 1.现有网络对多媒体业务的支持
I. Overview of Multimedia Communication Multimedia communication is a hot topic in the communication field in the 1990s and especially in recent years. Various communication networks are researching and developing technologies that support multimedia communication services. Multimedia communication is different from multimedia. The so-called multimedia communications, refers to simultaneously support dynamic images, voice, data, fax and other business communications. Multimedia communication network requirements are mainly two points: First, the transmission rate should be high, excluding coding technology, in general, the higher the rate, the better the image clarity; the second is to send real-time information, we must ensure that the image of the continuous Sexual and dynamic. 1. Existing network support for multimedia services