Patents by Inventor Soo N. Koh

Soo N. Koh 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).

  • Frequency domain speech coding
    Patent number: 4949383
    Abstract: Adaptive bit allocation to the channels of a sub/band coder (or to the coefficients of a transform coder) by using a fixed set of numbers of bits, only the selection of those channels to which the available bits are assigned being varied.
    Type: Grant
    Filed: August 21, 1988
    Date of Patent: August 14, 1990
    Assignee: Bristish Telecommunications public limited company
    Inventors: Soo N. Koh, Costas Xydeas