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
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
CLC Number:
WANG Yan, ZHANG Lei. Fast and Accurate KVM Remote Mouse Synchronization Method[J]. Computer Engineering, 2011, 37(19): 258-260.
王琰, 张磊. 一种快速精确的KVM远程鼠标同步方法[J]. 计算机工程, 2011, 37(19): 258-260.