Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jin Song0
Date of Patent
June 2, 2009
0Patent Application Number
119828040
Date Filed
November 5, 2007
0Patent Primary Examiner
Patent abstract
A system for displaying audio content with text including a book holder and a book. The book holder identifies which book of a plurality is placed in the holder by detecting magnetic indicators in specific locations and arrangements which are unique to each book. The page of the book which a user views at any given time is identified by detection of ambient light, by detection of a number of circuit elements in parallel, by detection of progressively stacked magnetic sensors, or by microwave reflection.
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