Patents by Inventor Don Hoon Lee

Don Hoon Lee 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 apparatus for efficient decompression of high quality digital audio
    Patent number: 5781452
    Abstract: A method and apparatus for processing a digital data stream digital including a plurality of samples representing an audio signal. The plurality of samples are requantized. The plurality of requantized samples are filtered using a fast Fourier transform, wherein pulse code modulated samples are created from the plurality of requantized samples.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: July 14, 1998
    Assignee: International Business Machines Corporation
    Inventors: Don Hoon Lee, Subramania Sudharsanan