Patents by Inventor Meng-Chao Kao

Meng-Chao Kao 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).

  • Publication number: 20100061646
    Abstract: An image processing method is provided. The image processing method includes obtaining a least significant bit (LSB) associated with a pixel block. Further, two bits are reduced from a bit number of each of the pixels of the pixel block. Thereafter whether to carry the pixel or not is determined according to the LSB. When the LSB is 01 or 11, the carry manners of each pixel of the pixel block in two consecutive frames are asymmetric one to another. Further, under the conditions of when the LSB is 01 and 11, respectively, the carry manners of the pixels of the pixel block mutually compensate. Therefore, the display performance of a display is improved.
    Type: Application
    Filed: November 30, 2008
    Publication date: March 11, 2010
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Chien-Hung Chen, Meng-Chao Kao, Hsiang-Tan Lin
  • Publication number: 20100002011
    Abstract: An image process method is provided and includes following steps: First, a first image is provided. Then, a smoothing process is performed on the first image to generate a second image. Thereafter, a difference image is generated by comparing the first image and the second image and a dynamic contrast stretch process is performed on the second image to generate a third image. In addition, a displaying image is generated by adding the difference image and the third image.
    Type: Application
    Filed: February 6, 2009
    Publication date: January 7, 2010
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Meng-Chao Kao, Tzu-Chiang Shen
  • Publication number: 20090324122
    Abstract: The present invention discloses an image processing method. The image processing method includes: performing an edge detection upon image data to generate an image edge detection result; determining an adjusting parameter corresponding to a target pixel according to the image edge detection result; and adjusting a gray value of the target pixel according to the adjusting parameter.
    Type: Application
    Filed: January 22, 2009
    Publication date: December 31, 2009
    Inventors: Meng-Chao Kao, Kuo-Lung Tsao
  • Publication number: 20090278864
    Abstract: A display method of a liquid crystal display device is provided. First, a liquid crystal display device is provided. Then, the relationship between a gray level and brightness of various view angles is detected. After that, a relationship table of input gray level and output gray level of the corresponding view angles is obtained according to the relationship between gray level and brightness of the view angles. Thereafter, an angle value is inputted to the liquid crystal display device. Then, the liquid crystal display device outputs a gray level corresponding to the angle value through the relationship table of input gray level and output gray level.
    Type: Application
    Filed: December 17, 2008
    Publication date: November 12, 2009
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventor: Meng-Chao Kao
  • Publication number: 20080278412
    Abstract: A method for adjusting gray scale of a plasma display panel (PDP) including receiving a frame and detecting a maximum-displaying gray scale of the gray scale distribution of the frame. As a result, the present invention extends the range of the gray scale distribution of the frame to a maximum range, which the PDP can display, according to the ratio between a maximum predetermined gray scale of the gray scale distribution that the PDP can display and the maximum-displaying gray scale.
    Type: Application
    Filed: May 9, 2007
    Publication date: November 13, 2008
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Meng-Chao Kao, Tzu-Chiang Shen
  • Publication number: 20080158429
    Abstract: A dynamic contrast enhancement circuit (DCE circuit) includes a grayscale statistical unit, an operation unit and a transformation unit. Wherein, the grayscale statistical unit receives a frame and divides the grayscale distribution of the frame into a plurality of statistical intervals to count the number of pixels of every statistical interval and obtains a plurality of statistical values. When one of the statistical values is greater than a threshold value, the operation unit would adjust every the statistical value according to the difference value between the statistical value exceeding the threshold value and the threshold value. In this way, the transformation unit is able to produce a transformation data according to the adjusted statistical values, so as to perform a DCE processing on the frame.
    Type: Application
    Filed: January 3, 2007
    Publication date: July 3, 2008
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Meng-Chao Kao, Tzu-Chiang Shen