一种快速精确的KVM远程鼠标同步方法

Fast and Accurate KVM Remote Mouse Synchronization Method

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。

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.