发明名称 |
User input device with dynamic ambient light calibration |
摘要 |
A user input device to generate a shutter threshold adaptive to ambient light conditions. The user input device includes a sensor array, a shutter controller, and a threshold generator. The sensor array obtains image data in response to light incident on the sensor array. The shutter controller is coupled to the sensor array. The shutter controller controls a shutter time during which the sensor array is responsive to the light incident on the sensor array according to a shutter value. The threshold generator is coupled to the shutter controller. The threshold generator dynamically generates a shutter threshold corresponding to the shutter value. The shutter threshold defines a transition of a finger-on/off state. |
申请公布号 |
US8188986(B2) |
申请公布日期 |
2012.05.29 |
申请号 |
US20080236368 |
申请日期 |
2008.09.23 |
申请人 |
MAU MING YONG;KOK BOON HOW;AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD. |
发明人 |
MAU MING YONG;KOK BOON HOW |
分类号 |
G06F3/042;G06F3/041 |
主分类号 |
G06F3/042 |
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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