Invention Grant
- Patent Title: Techniques for protected viewing of digital files
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Application No.: US11205479Application Date: 2005-08-17
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Publication No.: US10296854B2Publication Date: 2019-05-21
- Inventor: Mark S. Dionne
- Applicant: Mark S. Dionne
- Applicant Address: US TX Dallas
- Assignee: Cambium Learning, Inc.
- Current Assignee: Cambium Learning, Inc.
- Current Assignee Address: US TX Dallas
- Agency: Fish & Richardson P.C.
- Main IPC: G06F21/00
- IPC: G06F21/00 ; G06Q10/06
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.
Public/Granted literature
- US20070043669A1 Techniques for protected viewing of digital files Public/Granted day:2007-02-22
Information query
