Patents by Inventor Ioannis Kontoyiannis

Ioannis Kontoyiannis 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).

  • Multiresolution lossless/lossy compression and storage of data for efficient processing thereof
    Patent number: 6141445
    Abstract: Data representing, for instance, an image is lossily encoded, and a residual of the data is losslessly encoded. The lossily encoded data and the losslessly encoded residual provide a losslessly compressed data representation of the original data. The losslessly compressed data is then organized and stored on a storage system according to one or more criteria selected for the particular losslessly encoded data to be organized. This enables the efficient retrieval and processing of the compressed data, including retrieval of portions of the compressed data.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: October 31, 2000
    Assignee: International Business Machines Corporation
    Inventors: Vittorio Castelli, Ioannis Kontoyiannis, John Timothy Robinson, John J. E. Turek
  • Multiresolution lossless/lossy compression and storage of data for efficient processing thereof
    Patent number: 6021224
    Abstract: Data representing, for instance, an image is lossily encoded, and a residual of the data is losslessly encoded. The lossily encoded data and the losslessly encoded residual provide a losslessly compressed data representation of the original data. The losslessly compressed data is then organized and stored on a storage system according to one or more criteria selected for the particular losslessly encoded data to be organized. This enables the efficient retrieval and processing of the compressed data, including retrieval of portions of the compressed data.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: February 1, 2000
    Assignee: International Business Machines Corporation
    Inventors: Vittorio Castelli, Ioannis Kontoyiannis, John Timothy Robinson, John J. E. Turek