Patents by Inventor David A. Plettner

David A. Plettner 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).

  • EXTERNAL CACHE OPERATION BASED ON CLEAN CASTOUT MESSAGES
    Publication number: 20120311267
    Abstract: A processor transmits clean castout messages indicating that a cache line is not dirty and is no longer being stored by a lowest level cache of the processor. An external cache receives the clean castout messages and manages cache lines based in part on the clean castout messages.
    Type: Application
    Filed: May 31, 2011
    Publication date: December 6, 2012
    Inventors: Blaine D. Gaither, David A. Plettner
  • System and method for creating probe masks
    Patent number: 6732352
    Abstract: Disclosed is a method and device for creating probe masks. In one embodiment, the mask aids in locating and accessing a pad on a PCB to allow for the measurement a signal at the pad using a probe. The mask is a perforated insulating sheet having holes corresponding to the spacing of at least some of the conductive pads on the PCB, and at least some of the holes are marked to aid in signal measurement. A processing system is used to assist in creating the markings.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: May 4, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Dean T. Lindsay, Wayne C. Ashby, David A. Plettner
  • System and method for creating probe masks
    Publication number: 20030221180
    Abstract: Disclosed is a method and device for creating probe masks. In one embodiment, the mask aids in locating and accessing a pad on a PCB to allow for the measurement a signal at the pad using a probe. The mask is a perforated insulating sheet having holes corresponding to the spacing of at least some of the conductive pads on the PCB, and at least some of the holes are marked to aid in signal measurement. A processing system is used to assist in creating the markings.
    Type: Application
    Filed: May 23, 2002
    Publication date: November 27, 2003
    Inventors: Dean T. Lindsay, Wayne C. Ashby, David A. Plettner