Patents by Inventor Chi-Jung Hong

Chi-Jung Hong 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).

  • Automatically illumination control device of an elevator display screen
    Patent number: 6681899
    Abstract: An automatically illumination control device of an elevator display screen serves for displaying the position and maintenance of the elevator. A light sensor for detecting the intensity of light is installed to the display screen. The light sensor detects the illumination of the environment light and the illumination of the display screen is controlled automatically by using a control circuit so as to present a soft light which is warm to the visual sense. Moreover, the automatically illumination control device has the advantages of power saving and long lifetime.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: January 27, 2004
    Inventor: Chi-Jung Hong
  • AUTOMATICALLY ILLUMINATION CONTROL DEVICE OF AN ELEVATOR DISPLAY SCREEN
    Publication number: 20040011595
    Abstract: An automatically illumination control device of an elevator display screen serves for displaying the position and maintenance of the elevator. A light sensor for detecting the intensity of light is installed to the display screen. The light sensor detects the illumination of the environment light and the illumination of the display screen is controlled automatically by using a control circuit so as to present a soft light which is warm to the visual sense. Moreover, the automatically illumination control device has the advantages of power saving and long lifetime.
    Type: Application
    Filed: July 16, 2002
    Publication date: January 22, 2004
    Inventor: Chi-Jung Hong