Patents by Inventor Mark W. Branstad

Mark W. Branstad 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 implementing virtual memory having multiple selected page sizes
    Patent number: 5555387
    Abstract: A method and apparatus for implementing virtual memory having multiple selected page sizes are provided. A virtual address includes a map index and a frame offset. A selector mechanism receives the virtual address frame offset and generates an offset and index. A frame map table indexes the virtual address map index and the selector generated index and generates a base address. The frame map table generated base address and the selector generated offset are combined to provide a physical address.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 10, 1996
    Assignee: International Business Machines Corporation
    Inventors: Mark W. Branstad, Jonathan W. Byrn, Gary S. Delp, Philip L. Leichty, Kevin G. Plotz, Fadi-Christian E. Safi, Albert A. Slane
  • apparatus and method for segmentation and time synchronization of the transmission of multimedia data
    Patent number: 5537408
    Abstract: Method and apparatus are provided for transmitting a stream of multimedia digital data over a distribution communications network. A multimedia stream server segments the multimedia digital data stream into data blocks on a first boundary and a second boundary. The first boundary is a set number of transport system data packets and the second boundary is a transport system data packet including a timestamp. A scheduler schedules the segmented data blocks for transmission. The multimedia stream server decodes the segmented data blocks to locate the timestamps and matches the transmission of the located timestamp data block with a time value indicated by the timestamp. The set number of transport system data packets can be determined at connection setup and is not a predetermined value for all sessions. At the receiver, batch processing of received multimedia data can be provided.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 16, 1996
    Assignee: International Business Machines Corporation
    Inventors: Mark W. Branstad, Jonathan W. Byrn, Gary S. Delp, Phillip L. Leichty, Jeffrey J. Lynch, Kevin G. Plotz, Lee A. Sendelbach, Albert A. Slane
  • Apparatus and method for segmentation and time synchronization of the transmission of multimedia data
    Patent number: 5533021
    Abstract: Method and apparatus are provided for transmitting a stream of multimedia digital data over a distribution communications network. A multimedia stream server segments the multimedia digital data stream into data blocks on a first boundary and a second boundary. The first boundary is a set number of transport system data packets and the second boundary is a transport system data packet including a timestamp. A scheduler schedules the segmented data blocks for transmission. The multimedia stream server decodes the segmented data blocks to locate the timestamps and matches the transmission of the located timestamp data block with a time value indicated by the timestamp. The set number of transport system data packets can be determined at connection setup and is not a predetermined value for all sessions. At the receiver, batch processing of received multimedia data can be provided.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: July 2, 1996
    Assignee: International Business Machines Corporation
    Inventors: Mark W. Branstad, Jonathan W. Byrn, Gary S. Delp, Philip L. Leichty, Jeffrey J. Lynch, Kevin G. Plotz, Lee A. Sendelbach, Albert A. Slane