Patents Assigned to Sierra Interactive Systems, Inc.
  • Patent number: 7631013
    Abstract: A book or other digital content is represented as a set of objects in a relational database schema format called IBF (Interactive Book Format) and the controlling system software. This design provides for viewing books in a manner that coordinates additional information and provides interaction with the original book, while not disturbing the original publication and copyrighted material and even protecting that copyrighted material from piracy by supporting industry standard digital rights management security features. The inventive technique includes the use of conversion engines which will aid publishers in converting existing books into IBF format. The inventive technology further provides the ability to read any book in IBF format on a computer using refreshable Braille display, allowing the reader the advantage of reading all books in this format without having to purchase expensive, specially made Braille books.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: December 8, 2009
    Assignee: Sierra Interactive Systems, Inc.
    Inventors: Marcella Betz Parsons, Katherine Mary Parsons