Patents by Inventor Stephen H. Anderson

Stephen H. Anderson 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).

  • System for improving performance writing streaming tapes
    Patent number: 7463440
    Abstract: A method for efficiently saving data to tape, preferably within the ANSI X3.27 standard format sends signals to the tape drive to allow the tape drive to buffer the required tape marks, which the standard requires. Although the standard presumed these would be required for synchronization and would be written when produced, we do not adhere to that thinking. Instead we synchronize only at the logical end of the application constructed file, or at the end of the tape in one embodiment, saving time in writing through avoiding stop-start activities of the tape drive, thus allowing newer tape drives to take advantage of the features of the ANSI X3.27 standard. We also provide an embodiment, which allows for non-ANSI standard (i.e., unlabeled) tapes to be used.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: December 9, 2008
    Assignee: Unisys Corporation
    Inventors: Hans C. Mikkelsen, Stephen H. Anderson, Timothy T. Cain, David W. Dorumsgaard, Glenn C. Kaiser, Haeng D. Park
  • System for improving performance writing streaming tapes
    Patent number: 6870699
    Abstract: A method for efficiently saving data to tape, preferably within the ANSI X3.27 standard format sends signals to the tape drive to allow the tape drive to buffer the required tape marks, which the standard requires. Although the standard presumed these would be required for synchronization and would be written when produced, we do not adhere to that thinking. Instead we synchronize only at the logical end of the application constructed file, or at the end of the tape in one embodiment, saving time in writing through avoiding stop-start activities of the tape drive, thus allowing newer tape drives to take advantage of the features of the ANSI X3.27 standard. We also provide an embodiment, which allows for non-ANSI standard (i.e., unlabeled) tapes to be used.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: March 22, 2005
    Assignee: Unisys Corporation
    Inventors: Hans C. Mikkelsen, Stephen H. Anderson, Timothy T. Cain, David W. Dorumsgaard, Glenn C. Kaiser, Haeng D. Park