Invention Grant
- Patent Title: Electronic book with restricted access features
- Patent Title (中): 具有限制访问功能的电子书
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Application No.: US09344492Application Date: 1999-06-25
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Publication No.: US08095949B1Publication Date: 2012-01-10
- Inventor: John S. Hendricks , Michael L. Asmussen
- Applicant: John S. Hendricks , Michael L. Asmussen
- Applicant Address: US CA Sunnyvale
- Assignee: Adrea, LLC
- Current Assignee: Adrea, LLC
- Current Assignee Address: US CA Sunnyvale
- Agency: Arent Fox, LLP
- Main IPC: H04N7/16
- IPC: H04N7/16
Abstract:
A viewer for displaying electronic books and having various features for restricting access to their content. A user may assign ratings to stored electronic books, or use standard ratings, and assign access levels to potential users. The ratings and access levels determine which electronic books, or portions of the electronic books, a particular user may access on the viewer.
Information query
