Patents by Inventor Christopher B. Tumblin

Christopher B. Tumblin 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).

  • Patent number: 11782610
    Abstract: The presently disclosed technology is directed to combatting data theft, particularly of verified authentication data (or hashes thereof) such as login information, thumbprint data, digital signatures, identification numbers, and any other data that should be known to an accessor of stored data. The verified authentication data is initially saved for later comparison in a new type of memory, write-and-compare-only memory, where the data may be queried as to whether a to-be-verified value matches the stored verified value, but the stored and verified data is not read from the write-and-compare-only memory. This prevents a data breach by preventing the verified authentication data from being read by anyone, including those with access (whether legitimate or illegitimate) to any system connected to the write-and-compare-only memory.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: October 10, 2023
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Christopher B. Tumblin, Jess Lacy, Michael Barrell
  • Publication number: 20210240363
    Abstract: The presently disclosed technology is directed to combatting data theft, particularly of verified authentication data (or hashes thereof) such as login information, thumbprint data, digital signatures, identification numbers, and any other data that should be known to an accessor of stored data. The verified authentication data is initially saved for later comparison in a new type of memory, write-and-compare-only memory, where the data may be queried as to whether a to-be-verified value matches the stored verified value, but the stored and verified data is not read from the write-and-compare-only memory. This prevents a data breach by preventing the verified authentication data from being read by anyone, including those with access (whether legitimate or illegitimate) to any system connected to the write-and-compare-only memory.
    Type: Application
    Filed: January 30, 2020
    Publication date: August 5, 2021
    Inventors: Christopher B. TUMBLIN, Jess LACY, Michael BARRELL
  • Patent number: 8554964
    Abstract: A data writing apparatus includes a tape drive, a buffer and non-volatile memory. When a synchronization request is received from a device sending data to be written to a tape, the apparatus is operable to copy data corresponding to the synchronization request from the buffer to the non-volatile memory. The data may be stored in the non-volatile memory until at least the time when the data which it is a copy of is written to the tape from the buffer.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: October 8, 2013
    Assignee: Oracle America, Inc.
    Inventors: Christopher B. Tumblin, Ryan P. McCallister, Bradley E. Whitney
  • Publication number: 20100241770
    Abstract: A data writing apparatus includes a tape drive, a buffer and non-volatile memory. When a synchronization request is received from a device sending data to be written to a tape, the apparatus is operable to copy data corresponding to the synchronization request from the buffer to the non-volatile memory. The data may be stored in the non-volatile memory until at least the time when the data which it is a copy of is written to the tape from the buffer.
    Type: Application
    Filed: March 20, 2009
    Publication date: September 23, 2010
    Applicant: SUN MICROSYSTEMS, INC.
    Inventors: Christopher B. Tumblin, Ryan P. McCallister, Bradley E. Whitney
  • Patent number: 7277246
    Abstract: A system and method of operating a storage system is provided. The storage system includes a tape cartridge having a magnetic tape medium and a tape drive for reading and writing data to the magnetic tape medium of the tape cartridge. Performance data associated with specific operating loci (e.g., bands, directions, tracks, segments, etc.) of the tape drive and tape medium are collected, analyzed, and stored, allowing for analysis and detection of trends over time. In one example, tape usage events are monitored and when they cross a threshold the system may remove particular tapes in a preventative maintenance approach to reduce system outage. Performance data is collected and analyzed with a portion of the performance data being saved to emulated medium auxiliary memory (EMAM) on the magnetic tape, and a portion of the of the performance data saved in non-volatile storage in the drive.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: October 2, 2007
    Assignee: Quantum Corporation
    Inventors: Douglas F. Barbian, Christopher B. Tumblin, Mark A. Payne, Joe Ewaskowitz, Richard Chaney