Computer mouse without mouse-mat - has three-ball drive and fourth ball within mouse for sensing direction and as counter bearing, with mouse operation through its own weight
摘要
<p>The mouse has a three-ball mechanism. It also has a fourth ball inside the mouse. The fourth ball acts to sense direction and as a counter-bearing. The three ball mechanism is arranged on the under side of the device such that the mouse, through its own weight, can be operated without an underlying pad.</p>
申请公布号
DE19600352(A1)
申请公布日期
1997.02.13
申请号
DE1996100352
申请日期
1996.01.08
申请人
WEDLICH, RON, 94315 STRAUBING, DE;FISCHER, FRANZ, 94315 STRAUBING, DE
发明人
WEDLICH, RON, 94315 STRAUBING, DE;FISCHER, FRANZ, 94315 STRAUBING, DE
