Patents Assigned to Cambium Learning, Inc.
  • Tags for unlocking digital content
    Patent number: 10733308
    Abstract: Unlocking digital content embodied in digital readable form on a digital media carrier is described. Unlocking the digital content includes evaluating a code provided by a user scanning a tag attached to a printed, physical copy of the digital content; and if the code corresponds to an authorized code, unlocking the digital content.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: August 4, 2020
    Assignee: Cambium Learning, Inc.
    Inventor: Mark S. Dionne
  • Techniques for protected viewing of digital files
    Patent number: 10296854
    Abstract: Unlocking digital content embodied in digital readable form on a digital media carrier includes generating a test based on text that is printed in a physical copy of the digital content, prompting a user to input text that appears on a specific page of the physical copy, evaluating whether the user entered the correct word; and if the word was correct, unlocking the digital content.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: May 21, 2019
    Assignee: Cambium Learning, Inc.
    Inventor: Mark S. Dionne
  • Optical Character Recognition Technique For Protected Viewing of Digital Files
    Publication number: 20150286861
    Abstract: Unlocking digital content embodied in digital readable form on a digital media carrier includes receiving a scanned image of a page from scanning a physical copy of content, evaluating the scanned image; and if the scanned image corresponds to a selected page of the digital content, unlocking the digital content.
    Type: Application
    Filed: April 14, 2015
    Publication date: October 8, 2015
    Applicants: Cambium Learning, Inc., Cambium Education, Inc., Kurzweil/Intellitools, Inc., Lazel, Inc.
    Inventor: Mark S. Dionne