Patents by Inventor Jack Jan-Kwe Li

Jack Jan-Kwe Li 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 architecture for reducing flickers using one FIFO video line buffer in video signal conversions
    Patent number: 5936675
    Abstract: A system for reducing flickers in converting non-interlaced video signals to interlaced video signals is disclosed. The non-interlaced video signals are first modified by two independent adjustable parameters, each having a different weight on the received signals. A FIFO line buffer is used to delay respectively and alternatively the two modified signals to generate a portion of output signals. The final output interlaced signals are generated by combining the delayed signal from the FIFO line buffer with one of the two modified signals. As a result and for the first time, only one FIFO line buffer is used in such system for producing a converted interlaced signal with minimum visual errors in video signal conversions.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: August 10, 1999
    Assignee: AI Tech International Corp.
    Inventors: Sunny Y. Zhang, Jack Jan-Kwe Li