Patents by Inventor Chien-Hsun Cheng

Chien-Hsun Cheng 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: 7724971
    Abstract: Image compression, decompression and motion detection methods are described. Two temporally adjacent frame images, a previous time frame and a current time frame, are compressed in round-off and averaging techniques. Next, according to the compressed data of two corresponding pixels of the two frame images, whether or not the pixel of the current time frame image is of a motion picture is detected. If the pixel is of a motion picture, the compressed pixel data of the previous time frame image is decompressed, and an overdrive process is performed on the decompressed pixel data and the original pixel data of the current time frame image to produce an overdrive output. If the pixel is not of a motion picture, an overdrive process is not performed.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: May 25, 2010
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Juin-Ying Huang, Wen-Tse Tseng, Chien-Hsun Cheng, Shih-Sung Wen
  • Publication number: 20080304709
    Abstract: Image compression, decompression and motion detection methods are described. Two temporally adjacent frame images, a previous time frame and a current time frame, are compressed in round-off and averaging techniques. Next, according to the compressed data of two corresponding pixels of the two frame images, whether or not the pixel of the current time frame image is of a motion picture is detected. If the pixel is of a motion picture, the compressed pixel data of the previous time frame image is decompressed, and an overdrive process is performed on the decompressed pixel data and the original pixel data of the current time frame image to produce an overdrive output. If the pixel is not of a motion picture, an overdrive process is not performed.
    Type: Application
    Filed: July 29, 2008
    Publication date: December 11, 2008
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Juin-Ying Huang, Wen-Tse Tseng, Chien-Hsun Cheng, Shih-Sung Wen
  • Patent number: 7262818
    Abstract: A video system that performs TV signal decoding, deinterlacing, and de-motion-blurring for progressive scan flat panel display is introduced. The system embeds a frame buffer and a scaler for conducting format and resolution conversions for display panels of different sizes. The output of the scaler is sent to a de-motion-blur processor for reducing the blurriness due to the motion of image objects and the slow response time of flat panel display devices. The de-motion-blur processor gets the motion and noise indication signal from scaler or the pre-frame-buffer video processor. Based on the motion and noise information and the information of temporal difference, the de-motion-blur processor performs over driving for the display panel interface and improves the rising and falling response time of the flat panel display. The decoding, deinterlacing, and de-motion-blur processing share the same frame buffer controller so the entire system can be optimized in cost and performance.
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: August 28, 2007
    Assignee: Trumpion Microelectronic Inc.
    Inventors: Chun-Hsiung Chuang, Chien-Hsun Cheng, Shih-Sung Wen, Chi-Chuan Wang
  • Publication number: 20050237316
    Abstract: Image compression, decompression and motion detection methods are described. Two temporally adjacent frame images, a previous time frame and a current time frame, are compressed in round-off and averaging techniques. Next, according to the compressed data of two corresponding pixels of the two frame images, whether or not the pixel of the current time frame image is of a motion picture is detected. If the pixel is of a motion picture, the compressed pixel data of the previous time frame image is decompressed, and an overdrive process is performed on the decompressed pixel data and the original pixel data of the current time frame image to produce an overdrive output. If the pixel is not of a motion picture, an overdrive process is not performed.
    Type: Application
    Filed: October 14, 2004
    Publication date: October 27, 2005
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Juin-Ying Huang, Wen-Tse Tseng, Chien-Hsun Cheng, Shih-Sung Wen
  • Publication number: 20050162566
    Abstract: A video system that performs TV signal decoding, deinterlacing, and de-motion-blurring for progressive scan flat panel display is introduced. The system embeds a frame buffer and a scaler for conducting format and resolution conversions for display panels of different sizes. The output of the scaler is sent to a de-motion-blur processor for reducing the blurriness due to the motion of image objects and the slow response time of flat panel display devices. The de-motion-blur processor gets the motion and noise indication signal from scaler or the pre-frame-buffer video processor. Based on the motion and noise information and the information of temporal difference, the de-motion-blur processor performs over driving for the display panel interface and improves the rising and falling response time of the flat panel display. The decoding, deinterlacing, and de-motion-blur processing share the same frame buffer controller so the entire system can be optimized in cost and performance.
    Type: Application
    Filed: January 2, 2004
    Publication date: July 28, 2005
    Applicant: Trumpion Microelectronic Inc.
    Inventors: Chun-Hsiung Chuang, Chien-Hsun Cheng, Shih-Sung Wen, Chi-Chuan Wang