Patents by Inventor Jen-chung Wang

Jen-chung Wang 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).

  • Patent number: 8849599
    Abstract: The present invention discloses a method for extracting of solar cell parameters. After illuminating the solar cell by different simulated solar luminosity with different illumination intensity, measured current and measured voltages of the solar cell are acquired and the series resistance of the solar cell is extracted based on the measured current and measured voltages. The root mean square error (RMSE) is used to determine the series resistance of the solar cell. Therefore, the parameters of the solar cell are extracted without presuming current-voltage functional form.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: September 30, 2014
    Assignee: National Tsing Hua University
    Inventors: Sheng-Fu Horng, Ming-Kun Lee, Jen-Chung Wang, Hsin-Fei Meng
  • Publication number: 20060285588
    Abstract: A video encoder having an updateable quantization table for compressing a video information is proposed. The features are: the video encoder has a RAM to store the quantization table; the quantization table can be updated according to the special environments or user demands to change the choice standard of quantization.
    Type: Application
    Filed: June 21, 2005
    Publication date: December 21, 2006
    Inventors: Kuang-Yu Tang, Kuo-Chang Fu, Jen-chung Wang