Patents by Inventor Tun-Chiech Yang

Tun-Chiech Yang 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).

  • Method and apparatus for calibrating color temperature of color display devices
    Patent number: 7218358
    Abstract: A method and apparatus for calibrating color temperature of color display devices aims to calibrate output bases of RGB three original color lights of a color display device so that different color display devices can radiate the same color temperature in the same color temperature settings. The method of the invention uses a colorimeter to obtain current chromaticity value radiated from the color display device in a standard color representation system and in the condition of known output bases of the current three original color light signals, and through calculation to obtain the proportional relationship of the current radiating color temperature and an objective color temperature in the same standard color representation system, and based on which to derive the output bases of the required three original color light signals corresponding to the objective color temperature to be calibrated. The results are written through the apparatus into a color profile of the color display device.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: May 15, 2007
    Assignee: Coretronic Corporation
    Inventors: Yung-Chih Chen, Tun-Chiech Yang
  • Method and apparatus for calibrating color temperature of color display devices
    Publication number: 20050275912
    Abstract: A method and apparatus for calibrating color temperature of color display devices aims to calibrate output bases of RGB three original color lights of a color display device so that different color display devices can radiate the same color temperature in the same color temperature settings. The method of the invention uses a colorimeter to obtain current chromaticity value radiated from the color display device in a standard color representation system and in the condition of known output bases of the current three original color light signals, and through calculation to obtain the proportional relationship of the current radiating color temperature and an objective color temperature in the same standard color representation system, and based on which to derive the output bases of the required three original color light signals corresponding to the objective color temperature to be calibrated. The results are written through the apparatus into a color profile of the color display device.
    Type: Application
    Filed: June 15, 2004
    Publication date: December 15, 2005
    Inventors: Yung-Chih Chen, Tun-Chiech Yang