Patents by Inventor Pascal Frossad

Pascal Frossad 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).

  • Methods and apparatus for secure and adaptive delivery of multimedia content
    Patent number: 9071664
    Abstract: Techniques for securely and adaptively delivering multimedia content are disclosed in which a set of alternate access units for each time slot is obtained. Then, the encryption stream index of each access unit from the set of alternate access units of the previous time slot are obtained. An encryption stream index is then assigned to each access unit in the set of alternate access units in the current time slot, such that the encryption index increases over time. Thus, the invention overcomes the problem of encrypting a multimedia stream that may have multiple access units for each time slot by selecting the encryption index for each access unit such that the encryption index increases, regardless of which access unit the delivery system (e.g., server) selects for transmission.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: June 30, 2015
    Assignee: International Business Machines Corporation
    Inventors: Lisa D. Amini, Pascal Frossad, Chitra Venkatramani, Olivier Verscheure, Peter Westerink
  • Methods and Apparatus for Secure and Adaptive Delivery of Multimedia Content
    Publication number: 20090290706
    Abstract: Techniques for securely and adaptively delivering multimedia content are disclosed in which a set of alternate access units for each time slot is obtained. Then, the encryption stream index of each access unit from the set of alternate access units of the previous time slot are obtained. An encryption stream index is then assigned to each access unit in the set of alternate access units in the current time slot, such that the encryption index increases over time. Thus, the invention overcomes the problem of encrypting a multimedia stream that may have multiple access units for each time slot by selecting the encryption index for each access unit such that the encryption index increases, regardless of which access unit the delivery system (e.g., server) selects for transmission.
    Type: Application
    Filed: July 31, 2009
    Publication date: November 26, 2009
    Applicant: International Business Machines Corporation
    Inventors: Lisa D. Amini, Pascal Frossad, Chitra Venkatramani, Olivier Verscheure, Peter Westerink