发明名称 |
Optical trackpad module and method of using same |
摘要 |
An optical trackpad module is described herein. The module includes a light source and a trackpad that is optically coupled to the light source such that light from the light source can reach the trackpad. The trackpad is configured to receive an input object. The module also includes a sensor array that receives at least some of the light from the light source that is reflected off the input object. The sensor array is divided into sub-sections, and each sub-section corresponds to a portion of the trackpad. In addition, each sub-section detects at least translational movement of the input object on the corresponding trackpad portions to enable detection of rotational motion of the input object on the trackpad.
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申请公布号 |
US8390569(B2) |
申请公布日期 |
2013.03.05 |
申请号 |
US20090626308 |
申请日期 |
2009.11.25 |
申请人 |
STENMARK FREDRIK MARTIN;TONG KUO-FENG;RESEARCH IN MOTION LIMITED |
发明人 |
STENMARK FREDRIK MARTIN;TONG KUO-FENG |
分类号 |
G06F3/033 |
主分类号 |
G06F3/033 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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