The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2009
Filed:
Apr. 27, 2007
Sui-tsung Chen, Hsinchu Hsien, TW;
Li-ling Lee, Hsinchu Hsien, TW;
Hung-chun LI, Hsinchu Hsien, TW;
Industrial Technology Research Institute, Hsinchu Hsien, TW;
Abstract
A lighting device including: a power management module connected with and processing alternating-current power and outputting direct-current power; a light source driving module receiving and processing a portion of the direct-current power and outputting a light source driving signal; a first lighting unit receiving the light source driving signal and illuminating a light source; a sensing unit sensing the light source driving signal intensity; a lighting module receiving a portion of the direct-current power output by the power management module, processing the received direct-current power, outputting a direct-current power signal, storing the direct-current power signal through a power storage control function, processing the stored direct-current power signal by means of a power storage control unit whenever the sensing unit senses that the light source driving module does not output the light source driving signal, and outputting a lighting light source driving signal to a second lighting unit for illuminating a light source.