Cell phone for blind can read documents aloud

Chris Danielsen fidgets with the cell phone, holding it over a $20 bill.

"Detecting orientation, processing U.S. currency image," the phone says in a flat monotone before Danielsen snaps a photo. A few seconds later, the phone says, "Twenty dollars."

Danielsen, a spokesman for the National Federation of the Blind, is holding the next generation of computerized aids for the blind and visually impaired.

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