Patents by Inventor Andrew Charles Leppard

Andrew Charles Leppard 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).

  • Identifying application metadata in a backup stream
    Patent number: 8620845
    Abstract: A method of identifying application metadata in a backup stream comprises finding a known application metadata signature within a backup stream. A source application of user data in the backup stream is identified based upon the known application metadata signature. Application metadata, which has been generated by the source application, is removed from consideration by a data de-duplicator which is used to perform data de-duplication on the backup stream.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: December 31, 2013
    Inventors: Timothy John Stoakes, Andrew Charles Leppard
  • Repair of a corrupt data segment used by a de-duplication engine
    Patent number: 7913114
    Abstract: In a method for repairing a corrupt data segment used by a de-duplication engine, a data segment indexed by a de-duplication index is identified as being as a corrupt data segment. A search is made to find a duplicate data segment with which to replace the corrupt data segment, where the duplicate data segment comprises an uncorrupted version of the data segment. The corrupt data segment is replaced with the duplicate data segment.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: March 22, 2011
    Assignee: Quantum Corporation
    Inventor: Andrew Charles Leppard
  • IDENTIFYING APPLICATION METADATA IN A BACKUP STREAM
    Publication number: 20100077161
    Abstract: A method of identifying application metadata in a backup stream comprises finding a known application metadata signature within a backup stream. A source application of user data in the backup stream is identified based upon the known application metadata signature. Application metadata, which has been generated by the source application, is removed from consideration by a data de-duplicator which is used to perform data de-duplication on the backup stream.
    Type: Application
    Filed: September 24, 2008
    Publication date: March 25, 2010
    Inventors: Timothy John Stoakes, Andrew Charles Leppard
  • REPAIR OF A CORRUPT DATA SEGMENT USED BY A DE-DUPLICATION ENGINE
    Publication number: 20100031086
    Abstract: In a method for repairing a corrupt data segment used by a de-duplication engine, a data segment indexed by a de-duplication index is identified as being as a corrupt data segment. A search is made to find a duplicate data segment with which to replace the corrupt data segment, where the duplicate data segment comprises an uncorrupted version of the data segment. The corrupt data segment is replaced with the duplicate data segment.
    Type: Application
    Filed: July 31, 2008
    Publication date: February 4, 2010
    Inventor: Andrew Charles Leppard