Book or CD used as electronic key

Details Book or CD used as electronic key Book or CD used as electronic key

2006-02-07

2006-02-07

Cheng, Joe H. (Department: 3713)

Education and demonstration

Audio recording and visual means

Visual information in book form

C434S118000, C434S30700R, C434S362000

Reexamination Certificate

active

06996364

ABSTRACT:
A system and method for providing electronic resources to those possessing a particular book(s) or CD. Electronic resources enhance the static published material by providing more recent information and exchange of ideas. Access to the electronic enhancements is limited to book or CD owners in a way that does not add complexity to the publishing process.

REFERENCES:
patent: 4855725 (1989-08-01), Fernandez
patent: 5597307 (1997-01-01), Redford et al.
patent: 5711672 (1998-01-01), Redford et al.
patent: 5957697 (1999-09-01), Iggulden et al.
patent: 6311214 (2001-10-01), Rhoads
patent: 2003/0014636 (2003-01-01), Ahlbrand
patent: 2003/0093545 (2003-05-01), Liu et al.
patent: 2004/0128514 (2004-07-01), Rhoads

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