Patents by Inventor Peter Blackburn Stewart

Peter Blackburn Stewart 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 storing compressed file data on a disk where each MDFAT data structure includes an extra byte
    Patent number: 5809295
    Abstract: A method and apparatus for storing compressed file data stored on a disk. The method includes an improved format for the Compressed Volume File (CVF), and more specifically, 10 an improved format for the MDFAT data structure stored within the CVF. The improved format includes using an additional byte for maintaining each entry in the MDFAT data structure which increases the number of sectors within the Sector Heap that can be addressed and accessed. The improved format further allows compressed clusters to be stored in fragments in various portions of vacant storage space located throughout the Sector Heap. The new format for the MDFAT data structure includes a bit that identifies whether each cluster is being stored in fragments. The method stores the locations of each of the fragments in a Fragment Pointer List located in the first sector of the first fragment.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: September 15, 1998
    Assignee: Microsoft Corporation
    Inventors: Eric John Straub, Richard P. Jernigan, IV, Scott D. Quinn, Peter Blackburn Stewart