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AAPL, MSFT, GOOG sued over doc previews

Small firm says Windows, Mac, Chrome all violate its patent on using icons to display previews of document content.
Written by Richard Koman, Contributor

Interesting patent claim from a small company in Indiana: Apple, Microsoft and Google have violated a patent on the use of document-preview icons in operating systems, as Macworld reports.

Indiana-based Cygnus Systems claims:

A method of accessing one or more computer files via a graphical icon, comprising the steps of: capturing automatically one or more graphical representations of [the content of a file], creating automatically an icon including selected portions [of the file], linking the icon to the application and to the [file]; storing the icon in a memory; displaying the icon in a window on a display screen; invoking the application upon selection of the icon by ... reference to an underlying file system corresponding to the icon; and opening the one or more computer files within the application.

(I did my best to simplify the patent-ese language.) In the lawsuit, Cygnus claims Microsoft's Windows Vista and Internet Explorer 8, Google's Chrome, and Apple's Mac OS X (Finder and CoverFlow), iPhone and Safari all infringe on the patent. also infringe, the company said in court filings. According to Cygnus' lawyer, Matt McAndrews, with Niro, Scavone, Haller & Niro, these big guys may just be the start of a long-term litigation strategy.

They were a logical starting place for us. We’ve identified many other potentially infringing products that we’re investigating.

As is usual, Cygnus is seeking an injunction, as well as a "reasonable royalty."

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