Patents by Inventor Ekaputra Laiman

Ekaputra Laiman 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 producing perception of high quality grayscale shading on digitally commanded displays
    Patent number: 5293159
    Abstract: The perception of grayscale shading on a digitally commanded display is produced by commanding pixels of the display with brightness-setting signals of differing average duty cycles. Brightness-setting signals having one brightness level associated with them are phase shifted in relation to time and distributed to spaced apart pixel locations at which the one brightness level is to be produced. The energization of spatially adjacent pixels is scattered in time and pixels which are energized at the same time are selected to be spatially scattered so as to avoid the perception of visual disturbances such as flickering and surface streaming.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: March 8, 1994
    Assignee: Cirrus Logic, Inc.
    Inventors: Chester F. Bassetti, Jr., Dayakar C. Reddy, Ekaputra Laiman, Bryan M. Richter
  • Method and apparatus for producing perception of high quality grayscale shading on digitally commanded displays
    Patent number: 5185602
    Abstract: The perception of grayscale shading on a digitally commanded display is produced by commanding pixels of the display with brightness-setting signals of differing average duty cycles. Brightness-setting signals having one brightness level associated with them are phase shifted in relation to time and distributed to spaced apart pixel locations at which the one brightness level is to be produced. The energization of spatially adjacent pixels is scattered in time and pixels which are energized at the same time are selected to be spatially scattered so as to avoid the perception of visual disturbances such as flickering and surface streaming.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: February 9, 1993
    Assignee: Cirrus Logic, Inc.
    Inventors: Chester F. Bassetti, Jr., Dayakar C. Reddy, Ekaputra Laiman, Bryan M. Richter