发明名称 |
Optical sensor circuit, method of processing output signal of the same, and electronic apparatus |
摘要 |
An optical sensor circuit has a first optical sensor that outputs a signal according to the amount of received light on an opened light-receiving surface, a second optical sensor that is provided near the first optical sensor and outputs a signal according to the amount of received light on a shielded light-receiving surface, and a difference calculating circuit that calculates a difference between the output signal of the first optical sensor and the output signal of the second optical sensor and outputs the difference.
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申请公布号 |
US7256383(B2) |
申请公布日期 |
2007.08.14 |
申请号 |
US20050103480 |
申请日期 |
2005.04.12 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
OZAWA TOKURO |
分类号 |
G01J1/44;H01L31/10;G01J1/02;G01J1/16;G01J1/42;G01J1/46;H01J40/14;H01L27/146;H01L31/14;H04N9/64 |
主分类号 |
G01J1/44 |
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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