Patents by Inventor Andrew C. Goldstein

Andrew C. Goldstein 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: 8275951
    Abstract: In accordance with at least some embodiments of the invention, a system comprises a plurality of computers coupled together and to an array of redundant storage devices that is accessible to the plurality of computers. Each of the plurality of computers comprises a local memory that stores at least one bitmap. The least one bitmap logs regions of the redundant array that have been modified.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: September 25, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John J. Andruszkiewicz, Robert A. Brooks, Andrew C. Goldstein, Leonard S. Szubowicz, James J. Friedrichs
  • Patent number: 7197665
    Abstract: A backup apparatus and method suitable for protecting the data volume in a computer system function by acquiring a base state snapshot and a sequential series of data volume snapshots, the apparatus concurrently generating succedent and precedent lists of snapshot differences which are used to create succedent and precedent backups respectively. The data volume is restored by overwriting the base state data with data blocks identified in one or more succedent backups. File recovery is accomplished by overwriting data from a current snapshot with one or more precedent backups.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: March 27, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Andrew C. Goldstein, David W. Thiel, Richard F. Wrenn
  • Publication number: 20040163009
    Abstract: A backup apparatus and method suitable for protecting the data volume in a computer system function by acquiring a base state snapshot and a sequential series of data volume snapshots, the apparatus concurrently generating succedent and precedent lists of snapshot differences which are used to create succedent and precedent backups respectively. The data volume is restored by overwriting the base state data with data blocks identified in one or more succedent backups. File recovery is accomplished by overwriting data from a current snapshot with one or more precedent backups.
    Type: Application
    Filed: November 3, 2003
    Publication date: August 19, 2004
    Inventors: Andrew C. Goldstein, David W. Thiel, Richard F. Wrenn
  • Patent number: 6665815
    Abstract: A backup apparatus and method suitable for protecting the data volume in a computer system function by acquiring a base state snapshot and a sequential series of data volume snapshots, the apparatus concurrently generating succedent and precedent lists of snapshot differences which are used to create succedent and precedent backups respectively. The data volume is restored by overwriting the base state data with data blocks identified in one or more succedent backups. File recovery is accomplished by overwriting data from a current snapshot with one or more precedent backups.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: December 16, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Andrew C. Goldstein, David W. Thiel, Richard F. Wrenn
  • Patent number: 5315657
    Abstract: An access control list for determining the access rights of principals in a distributed system to a system resource is disclosed wherein the access rights of a specified principal are based on the access rights delegated to that principal.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: May 24, 1994
    Assignee: Digital Equipment Corporation
    Inventors: Martin Abadi, Andrew C. Goldstein, Butler W. Lampson
  • Patent number: 5224163
    Abstract: A method for delegating authorization from one entity in a distributed computing system to another for a computing session is disclosed wherein a session public/private encryption key pair is utilized for each computing session. The private encryption key is erased to terminate the computing session.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: June 29, 1993
    Assignee: Digital Equipment Corporation
    Inventors: Morrie Gasser, Andrew C. Goldstein, Charles W. Kaufman, Butler W. Lampson
  • Patent number: 5220604
    Abstract: A method for denying a first group access to a system resource wherein a second group is selected such that the first group is a subgroup of the second group. Access is granted only to those members of the second group who do not derive their membership in the second group through their membership in the first group.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: June 15, 1993
    Assignee: Digital Equipment Corporation
    Inventors: Morrie Gasser, Andrew C. Goldstein, Charles W. Kaufman