Patents by Inventor Joo C. Hwang

Joo C. Hwang 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).

  • Automatic screen condition control circuit in television set
    Patent number: 5191421
    Abstract: An automatic screen condition control circuit in a television receiver for automatically maintaining a desirable display image on a television screen having proper levels of contrast, sharpness, brightness and color.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: March 2, 1993
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Joo C. Hwang