Patents by Inventor David Timothy Zimmerman

David Timothy Zimmerman 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: 8407398
    Abstract: An approach is provided that loads software files, such as an operating system, on a hybrid storage device. The hybrid storage device is a device that includes a nonvolatile storage device and a nonvolatile memory cache. The nonvolatile memory cache has less storage capacity than the nonvolatile storage device. The nonvolatile memory cache is preset (“pinned”) to data corresponding to an initial set of address ranges of the nonvolatile storage device, such as all or part of the operating system that was loaded onto the nonvolatile storage device. A system usage metric is initialized along with a threshold value. The nonvolatile memory cache remains pinned to the initial set of address ranges until the system usage metric reaches the threshold value. When the system usage metric reaches the threshold value, then a caching algorithm is used to determine what data should be cached to the nonvolatile memory cache.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: March 26, 2013
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Jeffrey R. Hobbet, Donald R. Frame, David Timothy Zimmerman
  • Patent number: 5791934
    Abstract: A tester having as an interconnect structure a pair of resilient, elastomeric, vise-like interconnect grips having conductive tracings thereon. This interconnect structure provides electrical conduction between the conductive tabs of an adapter card under test and the tester.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: August 11, 1998
    Assignee: International Business Machines Corporation
    Inventors: Jeffrey Alan Hatley, Jerry Thomas Paradise, David Timothy Zimmerman, Rondell Kenneth Watts