Suit Says Microsoft Zune Feature Infringes Patent

As Microsoft struggles to fight off several high-visibility patent lawsuits, an ophthalmologist in Wisconsin has filed another patent infringement suit that potentially could cost the software giant an eye-popping amount. The suit, filed in U.S. District for the Western District of Wisconsin, alleges that Microsoft's Zune music player's "Buy from FM" feature infringes a pair of patents that were granted in 2002.

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