THERE'S a hitch in Google's plan to digitise the world's books and make them searchable online: scanning them is taking too long.
That's because character recognition software needs a neat 2D image of the text. But book bindings cause pages to arch up either side of the spine - bending text and making it hard to interpret.
However, last week Google was granted a patent (US 7508978) on an answer to this problem.
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