Patents by Inventor Robert E. Schuler

Robert E. Schuler 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: 7068787
    Abstract: A digital work and a system context (or resource information or system resource) are polarized enabling trusted rendering or replay of the digital work without depolarization of the digital content. The digital work includes digital content and resource information. Resource information may include information used by a replay application to format or process the digital content. The digital work and system context are polarized using a polarization scheme which relies on a polarization seed to initialize and customize the polarization. Different types of polarization seeds may be used, including a random number, a user's system's state or characteristic and a dynamic state-based polarization seed based on a dynamic system state or characteristic.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: June 27, 2006
    Assignee: Contentguard Holdings, Inc.
    Inventors: Thanh T. Ta, Prasad Ram, Robert E. Schuler, Arun Ramanujapuram, Guillermo Lao, Xin Wang