Patents by Inventor David A. Serls

David A. Serls 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 system of storing a main data file and deltas in a storage device for determining new data files from the main data file and the deltas
    Patent number: 6901414
    Abstract: A storage system and method for storing delta difference data indicative of the differences between new data and old data. A data transferring unit has copies of old data and new data. The data transferring unit compares the new data with the old data to determine delta difference data indicative of the differences between the new data and the old data. A target storage device having a copy of the old data receives the delta difference data from the data transferring unit. The target storage device stores the delta difference data and may then determine the new data by merging the old data with the delta difference data. The target storage device transmits the determined new data to a data receiving unit upon request. The method and system may be used with peer-to-peer remote copy (PPRC) storage system and storage area network (SAN) storage system.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: May 31, 2005
    Assignee: Storage Technology Corporation
    Inventors: Christopher J. West, David A. Serls
  • Method and system for transferring delta difference data to a storage device
    Patent number: 6434683
    Abstract: A method and system for transferring difference data (delta) between new and old data from a data transferring unit to a storage device having a copy of the old data for enabling the storage device to determine the new data based on the old data and the transferred difference data and then store the new data in place of the old data. Both of the data transferring unit and the target storage device have a copy of the old data. When new data is written at the data transferring unit to modify the old data the data transferring unit compares the new data with the old data to determine the difference data. The difference data is indicative of the differences between the new data and the old data. The target storage device merges the old data with the difference data to determine the new data. Upon determining the new data the target storage device discards the old data and stores the new data.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: August 13, 2002
    Assignee: Storage Technology Corporation
    Inventors: Christopher J. West, David A. Serls
  • Method and system of storing a main data file and deltas in a storage device for determining new data files from the main data file and the deltas
    Publication number: 20020065799
    Abstract: A storage system and method for storing delta difference data indicative of the differences between new data and old data. A data transferring unit has copies of old data and new data. The data transferring unit compares the new data with the old data to determine delta difference data indicative of the differences between the new data and the old data. A target storage device having a copy of the old data receives the delta difference data from the data transferring unit. The target storage device stores the delta difference data and may then determine the new data by merging the old data with the delta difference data. The target storage device transmits the determined new data to a data receiving unit upon request. The method and system may be used with peer-to-peer remote copy (PPRC) storage system and storage area network (SAN) storage system.
    Type: Application
    Filed: November 30, 2000
    Publication date: May 30, 2002
    Applicant: Storage Technology Corporation
    Inventors: Christopher J. West, David A. Serls