Write accessibility for electronic paper

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique

Reexamination Certificate

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C713S170000, C493S379000

Reexamination Certificate

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07865734

ABSTRACT:
A system and method to control the writing on electronic paper (e-paper). An e-paper device may incorporate authentication indicia as part of informational data written on e-paper material. The informational data is protected by a security methodology that is accessible to authorized entities. A reader device may be used to help make a verification determination of whether encrypted or encoded data has been altered. In some instances an output alert operably coupled to the reader device serves as a verification status indicator.

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Peterson, Ivars; “Rethinking Ink, Printing the pages of an electronic book”; Science News Online and Science News; bearing a date of Jun. 20, 1998; total pp. 5; vol. 153; No. 25; Science

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