Patents by Inventor Nuno Preguica

Nuno Preguica 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).

  • Reconcilable and undoable file system
    Publication number: 20040267823
    Abstract: Exemplary implementations provide flexible approaches to reconcile divergent file system states and/or undo file system commands that may lead to the divergent file system states. Exemplary systems maintain records of file system commands that cause changes to file system states and enable users to selectively undo individual file system commands and/or choose proposed non-conflicting file system schedules. A file system command is decomposed into one or more primitive actions representative of the file system command. Log constraints and object constraints relating primitive actions are used to identify and resolve conflicts between primitive actions.
    Type: Application
    Filed: June 24, 2003
    Publication date: December 30, 2004
    Applicant: MICROSOFT CORPORATION
    Inventors: Marc Shapiro, James William O' Brien, Nuno Preguica