Patents by Inventor Kwon H. Cha

Kwon H. Cha 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).

  • Digital/analog conversion apparatus having color palette RAM for multimedia
    Patent number: 5493299
    Abstract: A digital/analog conversion apparatus with a color palette RAM for a multimedia, comprising a first latch circuit for inputting a pixel address signal, a pixel mask register for selectively masking the pixel address signal from the first latch circuit in response to a control signal from a microprocessor interface circuit, a second latch circuit for storing digital color information temporarily, and first to third digital/analog converters for converting the digital color information from the second latch circuit into analog R, G and B color information. The palette RAM stores digital color information from the microprocessor interface circuit and outputs the digital color information stored in its location corresponding to the pixel address signal from the pixel mask register to the second latch circuit.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: February 20, 1996
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Jae H. Song, Oh B. Kwon, Min H. Kim, Kwon H. Cha, Jeong S. Hyun