用于多媒体通信的塑料光纤

介绍了塑料光纤的种类与特性、开发现状、多媒体通信采用塑料光纤的缘由、多媒体塑料光纤通信实例以及塑料光纤的市场及发展前景。     

MMX技术概览及其应用

MMX技术的出现掀起了多媒体计算机产业发展的新浪潮。本文介绍了MMX技术产生的背景，MMX的主要指令及其技术细节。讨论了国内外MMX技术开发利用的现状及其应用前景。     

MMail系统的设计与实现

本文介绍了多媒体电子邮件系统的实现方案。     

A promising application for broadband ISDN: Hypermedia teleconference

The optimum BISDN teleconference service for business, called hypermedia teleconference, is designed based on research into typical business activities and ATM, the most promising BISDN architecture. Service characteristics are determined by analysing the daily work practices of a large set of businessmen. It is shown that communication tasks occupy 44 per cent of the working day. The analysis further shows that some 60 per cent of all communication tasks could be performed through an advanced digital teleconference service. Hypermedia teleconference is designed to satisfy the needs of business through personal communication terminals and ATM public networks. The terminals effectively allocate the BISDN's high-speed transmission capability between a number of subchannels that realize distributed multipoint connection links and multimedia paths. The terminals use a new variable-bit-rate ATM codec created to realize high quality video. Users can easily create full featured teleconferences without a centralized connection facility. Terminals allow the synergistic combination of video, voice, telewriting, telepointing and document transmission services.     

一种适合多媒体处理的新型芯片

介绍ＭＭＸ技术的基本内容及带有ＭＭＸ技术的微处理器，以ＭＭＸ技术在视频会议系统上的应用为例，侧重分析ＭＭＸ技术给多媒体与通信应用带来的性能改善，并对ＭＭＸ技术的应用及发展前景进行探讨。     

On the Minimum Weight of Codes over F5 Constructed from Certain Conference Matrices

In this paper, codes over F₅ with parameters [36, 18, 12], [48, 24, 15], [60, 30, 18], [64, 32, 18] and [76, 38, 21] which improve the previously known bounds on the minimum weight for linear codes over F₅ are constructed from conference matrices. Through shortening and truncating, the above codes give numerous new codes over F₅ which improve the previously known bounds on minimum weights.     

TAIDEN无纸化多媒体会议系统

介绍了一种无纸化多媒体会议系统,基于GMC-STREAM千兆会议媒体流技术设计,所有音、视频信号通过一条Cat.6千兆网线传输,能充分保证会议音频、表决信息、控制信息等会议重要数据流的实时性和稳定性,无纸化多媒体会议终端配备10 in(1 in=2.54 cm)LCD触摸屏,并内置摄像头,可实现交互式会议控制管理(发言...     

会议选址问题的优化模型

国内某公司在各省会城市都设有分支机构,公司每年都有频繁的会议和培训工作需要各地分支机构派人参加,如何在大陆地区31个省会城市里选择一个城市作为会议地址,使得举办会议的成本最低且中转次数最少.建立了该会议选址问题的双目标优化模型,收集处理了有关实际数据,利用网络最短路算法和约束法等得到了该会议选址问题的解.在不考虑中转费用的情况下,得出成本最低且中转次数最少的会议地址是西安;在考虑中转费用的情况下,根据中转费用的不同给出了可供实际决策的最优会议选址方案.     

基于3G网络的战场视频会议系统

为了充分发挥视频会议系统在军事行动中的支撑作用,在分析了该系统应用于作战领域主要特征的基础上,给出了融入3G网络服务的战场视频会议系统体系结构,并探讨了系统构建过程中的若干关键问题。研究表明该系统能在一定程度上提高视频数据的传输效率,可为从事野外电视会议保障和相关研究的技术人员提供参考。