摘要： 针对键盘显示器鼠标(KVM)中远程被控鼠标与主机鼠标的同步要求，提出一种基于高速USB2.0-HID类规范的鼠标同步方法。在传统相对鼠标同步方法中加入自适应“残差处理”，去除相对偏移的累积误差，增加一种绝对鼠标同步方法，用双字节绝对坐标值代替传统单字节相对坐标偏移进行定位。实验结果表明，该方法使同步延迟时间降至3 ms以下，能有效提高同步的精确性和时效性。

关键词: HID类, 相对鼠标同步, 绝对鼠标同步, 残差处理

Abstract: With the high demands of Keyboard Video Mouse(KVM) remote mouse synchronization, this paper proposes a mouse-synch method based on High-Speed USB2.0-HID class. “residual process” is added to the traditional relative mouse mode to reduce accumulative errors in this method. Another mode called absolute mouse uses absolute double-byte position instead of relative single-byte offset to get higher precision. Experimental results show that, this method can reduce the delay-time to 3 ms, and improve the accuracy and real time of synchronization.

Key words: Human Interface Device(HID) class, relative mouse synchronization, absolute mouse synchroni- zation, residual process

中图分类号: 

• N945.15