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	Integrated photo monitor circuit and optical pickup unit
	-
	2007-06-08
著作权人	KONINKLIJKE PHILIPS ELECTRONICS N.V.
专利号	IN3200CHENP2006A
国家	印度
文献子类	发明申请
其他题名	Integrated photo monitor circuit and optical pickup unit
英文摘要	The invention provides an integrated photo monitor circuit (12), particularly an integrated photo monitor circuit (12) for CD and DVD applications, comprising a photo detector (14), an amplifier (16) for amplifying an output signal of said photo detector (14), and sampling circuitry (18) for sampling an output signal of said amplifier (16). The invention further provides an optical pickup unit (10), particularly an optical pickup unit (10) for CD and DVD applications, comprising means (20, 22) for emitting light, and means (12) for generating a sampled feedback signal (40) correlated to the output power of said means (20, 22) for emitting light and intended to be evaluated for controlling said output power of said means (20, 22) for emitting light. By providing the sampling function on the optical pickup unit (10), especially in an integrated photo monitoring circuit (12), the necessary bandwidth of a flex connection (32) between the optical pickup unit (10) and a printed circuit board (42) may be reduced compared to solutions where the sampling is done on the printed circuit board (42).
公开日期	2007-06-08
申请日期	2006-09-04
状态	未确认
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/61362]
专题	半导体激光器专利数据库
作者单位	KONINKLIJKE PHILIPS ELECTRONICS N.V.
推荐引用方式 GB/T 7714	-. Integrated photo monitor circuit and optical pickup unit. IN3200CHENP2006A. 2007-06-08.

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