Patents by Inventor Dmitri V. Chmounk

Dmitri V. Chmounk 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).

  • Patent number: 7333929
    Abstract: Methods and apparatus are provided for the creation and utilization of unique compressed data stream compositions, structures and formats which allow for the alteration of the data stream's data rate without first decoding the data stream back to its uncompressed form and then re-encoding the resulting uncompressed data at a different data rate. Such methods and apparatus perform this data rate alteration, known as scaling, such that optimal quality is maintained at each scaled data rate, while performing said scaling with low computational complexity. In addition, the present invention provides for data rate alteration in small increments. A unique application for the disclosed bit rate scaling method and apparatus is also described.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: February 19, 2008
    Inventors: Dmitri V. Chmounk, Richard J. Beaton, Darrell P. Klotzbach, Paul R. Goldberg
  • Patent number: 7114071
    Abstract: A method and apparatus for adding watermark data to an input signal is provided. For this method watermark data is embedded into the input signal by modulating elements of the input signal to predefined relationships in reference to other elements of the input signal. By using referential relationships and by using patterned sequences, one or more bits of data can robustly be embedded. Further, a method and apparatus for recovering data embedded by the method and apparatus of the present invention, are also provided. To recover the embedded data, differences between elements of the input signal to reference elements of the signal are calculated and checked against predefined relationships. Predefined relationships thus found are used to recover pieces of the embedded information.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: September 26, 2006
    Assignee: DTS Canada, ULC
    Inventors: Dmitri V. Chmounk, Richard J. Beaton, Darrell P. Klotzbach, Paul R. Goldberg