Patents by Inventor Yevgeny Yakov (Gene) Itkis

Yevgeny Yakov (Gene) Itkis 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).

  • Key management for content protection
    Patent number: 8054978
    Abstract: A method for content access control operative to enable authorized devices to access protected content and to prevent unauthorized devices from accessing protected content, the method comprising: providing a plurality of authorized devices; dividing the plurality of authorized devices into a plurality of groups, each of the plurality of authorized devices being comprised in at least one of the plurality of groups, no two devices of the plurality of authorized devices being comprised in exactly the same groups; determining whether at least one device of the plurality of authorized devices is to be prevented from having access to the protected content and, if at least one device is to be prevented, removing all groups comprising the at least one device from the plurality of groups, thus producing a set of remaining groups; and determining an authorized set comprising groups from the set of remaining groups, such that each device of the plurality of authorized devices which was not determined, in the determining
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: November 8, 2011
    Assignee: NDS Limited
    Inventor: Yevgeny Yakov (Gene) Itkis
  • Key management for content protection
    Publication number: 20080222695
    Abstract: A method for content access control operative to enable authorized devices to access protected content and to prevent unauthorized devices from accessing protected content, the method comprising: providing a plurality of authorized devices; dividing the plurality of authorized devices into a plurality of groups, each of the plurality of authorized devices being comprised in at least one of the plurality of groups, no two devices of the plurality of authorized devices being comprised in exactly the same groups; determining whether at least one device of the plurality of authorized devices is to be prevented from having access to the protected content and, if at least one device is to be prevented, removing all groups comprising the at least one device from the plurality of groups, thus producing a set of remaining groups; and determining an authorized set comprising groups from the set of remaining groups, such that each device of the plurality of authorized devices which was not determined, in the determining
    Type: Application
    Filed: February 28, 2008
    Publication date: September 11, 2008
    Inventor: Yevgeny Yakov (Gene) Itkis
  • Key management for content protection
    Patent number: 7382884
    Abstract: A method for content access control operative to enable authorized devices to access protected content and to prevent unauthorized devices from accessing protected content, the method comprising: providing a plurality of authorized devices; dividing the plurality of authorized devices into a plurality of groups, each of the plurality of authorized devices being comprised in at least one of the plurality of groups, no two devices of the plurality of authorized devices being comprised in exactly the same groups; determining whether at least one device of the plurality of authorized devices is to be prevented from having access to the protected content and, if at least one device is to be prevented, removing all groups comprising the at least one device from the plurality of groups, thus producing a set of remaining groups; and determining an authorized set comprising groups from the set of remaining groups, such that each device of the plurality of authorized devices which was not determined, in the determining
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: June 3, 2008
    Assignee: NDS Ltd.
    Inventor: Yevgeny Yakov (Gene) Itkis
  • Key management for content protection
    Patent number: 7263611
    Abstract: A method for content access control operative to enable authorized devices to access protected content and to prevent unauthorized devices from accessing protected content, the method comprising: providing a plurality of authorized devices; dividing the plurality of authorized devices into a plurality of groups, each of the plurality of authorized devices being comprised in at least one of the plurality of groups, no two devices of the plurality of authorized devices being comprised in exactly the same groups; determining whether at least one device of the plurality of authorized devices is to be prevented from having access to the protected content and, if at least one device is to be prevented, removing all groups comprising the at least one device from the plurality of groups, thus producing a set of remaining groups; and determining an authorized set comprising groups from the set of remaining groups, such that each device of the plurality of authorized devices which was not determined, in the determining
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: August 28, 2007
    Assignee: NDS Ltd.
    Inventor: Yevgeny Yakov (Gene) Itkis
  • Key management for content protection
    Patent number: 7188242
    Abstract: A method for content access control operative to enable authorized devices to access protected content and to prevent unauthorized devices from accessing protected content, the method comprising: providing a plurality of authorized devices; dividing the plurality of authorized devices into a plurality of groups, each of the plurality of authorized devices being comprised in at least one of the plurality of groups, no two devices of the plurality of authorized devices being comprised in exactly the same groups; determining whether at least one device of the plurality of authorized devices is to be prevented from having access to the protected content and, if at least one device is to be prevented, removing all groups comprising the at least one device from the plurality of groups, thus producing a set of remaining groups; and determining an authorized set comprising groups from the set of remaining groups, such that each device of the plurality of authorized devices which was not determined, in the determining
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: March 6, 2007
    Assignee: NDS Ltd.
    Inventor: Yevgeny Yakov (Gene) Itkis
  • Key management for content protection
    Patent number: 6880081
    Abstract: A method for content access control operative to enable authorized devices to access protected content and to prevent unauthorized devices from accessing protected content, the method comprising: providing a plurality of authorized devices; dividing the plurality of authorized devices into a plurality of groups, each of the plurality of authorized devices being comprised in at least one of the plurality of groups, no two devices of the plurality of authorized devices being comprised in exactly the same groups; determining whether at least one device of the plurality of authorized devices is to be prevented from having access to the protected content and, if at least one device is to be prevented, removing all groups comprising the at least one device from the plurality of groups, thus producing a set of remaining groups; and determining an authorized set comprising groups from the set of remaining groups, such that each device of the plurality of authorized devices which was not determined, in the determining
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: April 12, 2005
    Assignee: NDS Ltd.
    Inventor: Yevgeny Yakov (Gene) Itkis