基于光传输的USB键盘鼠标一体化设计  

Design and implementation of USB optical fiber transmission keyboard and mouse on one chip

作　　者：戴捷[1] 胡晓吉[1] 

机构地区：[1]中国电子科技集团公司第十五研究所,北京100083

出　　处：《计算机工程与设计》2012年第7期2620-2627,共8页Computer Engineering and Design

摘　　要：为解决通用串行总线USB的传输距离短的问题,提出了一种用光纤传输替代电气传输的方案。该方案通过在USB主机端和USB设备端分别添加一MCU来分别模拟主机和设备的行为,从而实现USB主机和USB设备的隔离,以便可以通过光纤传输来代替电传输。通过键盘鼠标一体化设计实例,验证了该方案具有可行性和实用性。该设计方案已经在实际项目中得到了很好的应用。To prolong the transmission distance of USB, a solution is put forward, which utilizes optical fiber to transparently transmit USB signals instead of using electrical wire. This method include two MCUs adding separately at the USB host and de- vice, imitating the action of the host and device, so that they can be isolated and optical transmission is adopted instead of electri- cal transmission. The feasibility and practicability of the design are confirmed through the case of keyboard-mouse integrated in one device. Excellent performance is gotten in the practical use.

关 键 词：通用串行总线 光纤传输 固件程序 可编程逻辑阵列FPGA 人机接口设备 

分 类 号：TN915[电子电信—通信与信息系统]