| 发明名称 |
IMPROVEMENTS IN OR RELATING TO OPTICAL NAVIGATION DEVICES |
| 摘要 |
<p>An optical navigation device is provided for detecting movement of a pointer, such as a finger, in three dimensions. A sensor obtains images of the pointer which have been illuminated by an illumination source, and an image scaling module determines the difference in size between images acquired by the image sensor to determine the difference in height of the pointer between images.</p> |
| 申请公布号 |
WO2012117232(A1) |
申请公布日期 |
2012.09.07 |
| 申请号 |
WO2012GB50236 |
申请日期 |
2012.02.03 |
| 申请人 |
STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED;STMICROELECTRONICS (GRENOBLE 2) SAS;RAYNOR, JEFFREY;MELLOT, PASCAL |
发明人 |
RAYNOR, JEFFREY;MELLOT, PASCAL |
| 分类号 |
G06F3/041 |
主分类号 |
G06F3/041 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
