Patents by Inventor Jimmy C. Tran

Jimmy C. Tran 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).

  • Video noise reduction apparatus and method using three dimensional discrete cosine transforms and noise measurement
    Patent number: 5327242
    Abstract: A noise component of a video signal is reduced by using a three dimensional discrete cosign transform (3-D DCT) to determine the time frequency spectrum of both the video signal and the noise component, subtracting the time frequency spectrum of the noise component from the time frequency spectrum of the video signal, and converting the time frequency spectrum of the modified video signal back to the spatial time domain by using an inverse 3-D DCT.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: July 5, 1994
    Assignee: Matsushita Electric Corporation of America
    Inventors: Saiprasad V. Naimpally, Jimmy C. Tran