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Kindle faces patent suit

Citing innovations by founder John S. Hendricks, Discovery Communications filed a patent infringement lawsuit Tuesday against Amazon over the dot-com's strong-selling Kindle.

The suit alleges that Discovery holds a patent on a certain e-book technology employed by the Kindle. Introduced with great fanfare in late 2007, the device has defied some early critics of its bulkiness to gain traction with consumers, especially in its new Kindle 2 incarnation.

At the same time, the emergence of e-books -- not just on the Kindle, but on Google and on Apple's iPhone -- has prompted thorny legal questions over compensation for authors and publishers.

Amazon had no comment on the lawsuit.

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