Detecting apparatus for cold cathode lamp

Details Detecting apparatus for cold cathode lamp Detecting apparatus for cold cathode lamp

2006-12-05

2006-12-05

Chen, Shih-Chao (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Reexamination Certificate

active

07145294

ABSTRACT:
A detecting apparatus for a lamp is disclosed. The detecting apparatus includes a central processing unit for receiving a spectrum signal and converting the spectrum signal into a digital signal, a converter for converting the digital signal to an analog signal, a controller for receiving the analog signal and generating an operating signal, and an amplifier for receiving the operating signal and outputting a voltage signal to activate the lamp, wherein the spectrum signal is analyzed and differentiated such that an operating condition for the lamp is obtained.

REFERENCES:
patent: 5747942 (1998-05-01), Ranganath
patent: 6362575 (2002-03-01), Chang et al.
patent: 6559645 (2003-05-01), Arndt et al.
patent: 6667585 (2003-12-01), O'Meara
patent: 2002/0140352 (2002-10-01), Sakai et al.
patent: 2003/0142305 (2003-07-01), Bungo
patent: 2005/0068534 (2005-03-01), Kleinfeld et al.

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