Patents by Inventor Duk-won Hwang

Duk-won 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).

  • On-screen information superimposing circuit
    Patent number: 5357286
    Abstract: An on-screen information superimposing circuit including an A/D converter for converting color signals and a luminance signal output from a video signal source into digital signals, an on-screen information generator for detecting on-screen information signal made of the color signals according to the luminance signal output from the A/D converter, storing the on-screen information, and outputting the stored color signals according to a read control signal, and a D/A converter for converting the on-screen information output from the on-screen information generator into an analog signal so as to be superimposed on another signal output from the video signal source, so as to reproduce the color signal of the on-screen information using the original color signal.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: October 18, 1994
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Duk-won Hwang