Patents by Inventor Ching-Dian Wong

Ching-Dian Wong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Constant Power Driving-and-Controlling Method for Lighting Elements
    Publication number: 20090146585
    Abstract: The present invention provides a constant power driving-and-controlling method for lighting elements so as to stably drive solid lighting elements. Measuring the input power of lighting elements by a power measuring device and then controlling the input power of the lighting elements by a feedback controller to stabilize the input power of the lighting elements, the effects of environment temperature and the difference of the electrical characteristics of the lighting elements on the input power can be eliminated.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 11, 2009
    Inventors: Bin-Juine HUANG, Min-Sheng Wu, Ching-Dian Wong, Po-Chien Hsu