发明名称 |
Color sensor circuit with integrated programmable gain selection |
摘要 |
A color sensor is implemented on a single integrated circuit chip. The color sensor includes a plurality of color sensor circuits and a gain selection control. Each color sensor circuit in the plurality of color sensor circuits includes a light detector, an amplifier and a gain selection circuit. The amplifier is connected to the light detector. The amplifier amplifies a signal from the light detector. The gain selection circuit is connected to the amplifier. The gain selection controls gain of the amplifier. The gain selection circuit includes a variable feedback resistance. The gain selection control selects a separate value of the variable feedback resistance for each color sensor circuit.
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申请公布号 |
US7349017(B2) |
申请公布日期 |
2008.03.25 |
申请号 |
US20040828707 |
申请日期 |
2004.04.21 |
申请人 |
AVAGO TECHNOLOGIES ECBU IP PTE LTD |
发明人 |
TAN BOON KEAT;HO CHI MUN |
分类号 |
G01J3/50;H04N3/14;G01J1/44;G01J1/46;G01J3/46;H03F3/08;H03G3/18;H04N1/48;H04N5/20;H04N5/369 |
主分类号 |
G01J3/50 |
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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