发明名称 |
Optical navigation system with lift detection |
摘要 |
An optical navigation system with a lift detection module is provided for preventing cursor movement if the optical navigation system has been lifted from the navigation surface. The optical navigation system may include an image sensor, a controller and a lift detection module. The lift detection module may be operatively coupled with the image sensor and the controller to selectively report a motion data upon determining a lift by comparing the average of the photosensitive pixel elements with a pixel element threshold value and the surface quality value with a surface quality threshold value. The lift detection module may be incorporated in a microcontroller, wherein the microcontroller may be added to a navigation system to provide an additional lift detection feature.
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申请公布号 |
US8358271(B2) |
申请公布日期 |
2013.01.22 |
申请号 |
US20100820581 |
申请日期 |
2010.06.22 |
申请人 |
AVAGO TECHNOLOGIES ECBU (SINGAPORE) PTE. LTD.;SONG WILLIE;NG SIEW FONG;LYE BENG CHYE;TAN ZI HAO |
发明人 |
SONG WILLIE;NG SIEW FONG;LYE BENG CHYE;TAN ZI HAO |
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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