发明名称 |
NAVIGATION DEVICE AND IMAGE DISPLAY SYSTEM |
摘要 |
There is provided an image display system including a navigation device and an inertial unit. The navigation device outputs displacements at a report rate. The inertial unit may provide an inertial displacement for continuously controlling a cursor motion after the displacements decrease to zero. |
申请公布号 |
US2015177857(A1) |
申请公布日期 |
2015.06.25 |
申请号 |
US201314139981 |
申请日期 |
2013.12.24 |
申请人 |
PIXART IMAGING INC. |
发明人 |
CHIN KIAN-MING;CHONG YIK-LEONG |
分类号 |
G06F3/0354;G06F3/00 |
主分类号 |
G06F3/0354 |
代理机构 |
|
代理人 |
|
主权项 |
1. A navigation device, operating on a work surface, the navigation device comprising:
an image sensor configured to successively capture image frames of the work surface; a processing unit configured to calculate displacements of the navigation device with respect to the work surface according to the image frames; an output interface configured to output the displacements at a report rate; and an inertial unit configured to analyze a plurality of displacements within a predetermined period and provide an inertial displacement for being outputted by the output interface when at least one of the displacements within the predetermined period is larger than a threshold and the displacements decrease to zero within the predetermined period. |
地址 |
Hsin-Chu County TW |