Patents by Inventor Jia-der Hsieh

Jia-der Hsieh 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 interpolating a digital image
    Patent number: 6577778
    Abstract: A method and apparatus is provided for interpolating a digital image in response to a requested degree of sharpness. An adjusting signal representing the requested degree of sharpness will then be generated. The interpolated pixel data are computed based on a 3 order or 4 order interpolation function for three sampling input pixels with an adjustable weight coefficient representing the selected degree of sharpness. The apparatus of the present invention mainly includes: a control interface, a control unit, a vertical interpolation computation module, and a horizontal interpolation module. The vertical interpolation computation module and the horizontal interpolation module are implemented according to an interpolation function derived by the present invention. The control unit comprises a lookup table built according to a scaling function of the present invention.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: June 10, 2003
    Assignee: Myson Century, Inc.
    Inventors: Tung-Hai Wu, Jen-chung Weng, Jia-der Hsieh, Tsung-yi Tseng
  • Image dithering device processing in both time domain and space domain
    Patent number: 6469708
    Abstract: An image dithering device processing in both time domain and space domain to improve the image quality of an LCD digital display is disclosed. The device comprises a Gamma Table for performing Gamma processing on input signals; a counter module for generating a row counting value and a column counting value by counting the vertical synchronizing signal, horizontal synchronizing signal, and image pixel clock of the LCD image control system; a dithering value generating module for providing a dithering value for each pixel according to the row counting value and the column counting value, the dithering value generating module having a matrix with different value; and a calculation module for performing calculation on the value output form the Gamma Table and the dithering value for decreasing the bits of the input image value so as to fit the input data bits of the LCD display.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: October 22, 2002
    Assignee: Myson Technology, Inc.
    Inventors: Tung-hai Wu, Jen-chung Weng, Kuei-hsiang Chen, Jia-der Hsieh
  • Method and apparatus for interpolating a digital image
    Patent number: 6369787
    Abstract: A method and apparatus is provided for interpolating a digital image in response to a requested degree of sharpness. An adjusting signal representing the requested degree of sharpness will then be generated. The interpolated pixel data are computed based on a two-order interpolation function for two sampling input pixels with an adjustable weight coefficient representing the selected degree of sharpness. The apparatus of the present invention mainly includes: a control interface, a control unit, a vertical interpolation computation module, and a horizontal interpolation module. The vertical interpolation computation module and the horizontal interpolation module are implemented according to an interpolation function derived by the present invention. The control unit comprises a lookup table built according to a scaling function of the present invention.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: April 9, 2002
    Assignee: Myson Technology, Inc.
    Inventors: Tung-hai Wu, Jen-chung Weng, Jia-der Hsieh, Tsung-yi Tseng
  • Clock synthesizer for low EMI applications
    Patent number: 5710524
    Abstract: The object of the present invention is to provide a clock synthesizer IC which can produce clock signals with much lower radiated EMI.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: January 20, 1998
    Assignee: Myson Technology, Inc.
    Inventors: Chun-Ming Chou, Jia-Der Hsieh, Tsen-Shau Yang