无线媒体很具挑战性-许多不定因素还不受控制；覆盖范围是很大的障碍；使用不同拓扑结构和不同平台的旧系统会使事情变得更困难。
Wireless media is challenging — many variables are not yet under control; coverage is a big hindrance; legacy systems with different topologies and different platforms make things even tougher.
本书综合介绍在服务提供方面的协议信号传输、媒体传输方法、参考拓扑考虑因素和语音质量测试。
The book introduced the integrated services agreement with the signal transmission, the method of transmission media, reference topology considerations and voice quality tests.
讨论了多媒体图形、影象和硬件光标数据的融合技术，提出了一种基于串-并行拓扑结构的新型融合技术。
The mixing technology of graphics, video and hardware cursor data is discussed. A new type of mixing technology based on serial-parallel topological structure is proposed.
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