简述了VCSEL当前研究生产情况以及发展前景，进而提出把VCSEL应用在自由空间通信中的可行性方案。
And the research and production about VCSEL is stated. A feasible project is brought forward for the application of VCSEL in free space communication.
通用串行总线(usb)是计算机外设接口的发展趋势，文中介绍了一种把usb总线应用于视频监视和会议系统中的方案。
Universal Serial Bus (USB) makes the connection between computers and peripherals easier, an application of USB in a new video Surveillance and Conferencing System is introduced.
以某智能小区宽带无线接入实施方案为例，介绍了无线接入技术在智能小区中的应用及发展前景。
By application of the broadband radio access to an intellectual residential area, the paper introduced the application of broadband radio access in the intellectual residential area.
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