Patents by Inventor Daniel E. Lutz

Daniel E. Lutz 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).

  • Recovery of in-core disk data
    Patent number: 5291600
    Abstract: Upon a computer system crash, the operating system writes data such as stored in an in-core disk to an external nonvolatile disk drive. During a reboot of the system, volatile memory is cleared; and the location of the stored user data in the nonvolatile disk drive is determined. The location of the in-core disk in the nonvolatile disk drive is identified and the in-core disk's data is written back to memory, thereby preventing the loss of the user data due to a system crash.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: March 1, 1994
    Assignee: AT&T Bell Laboratories
    Inventors: Daniel E. Lutz, Jorge D. Penaranda