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Elan files patent suit against Pixcir

Posted: 13 Jan 2010 ?? ?Print Version ?Bookmark and Share

Keywords:patent suit? microcontroller? touchscreen?

Elan Microelectronics Corp. has filed a complaint in the U.S. District Court in Las Vegas, Nevada, alleging patent infringement against Pixcir Microelectronics Co. Ltd. The complaint alleges that the sale of Pixcir's Tango S32 microcontroller for use in touchscreen and touchpad products capable of detecting the simultaneous presence of multiple fingers infringes Elan's U.S. Patent No. 5,825,352.

The patent relates to touch-sensitive input devices with the ability to detect the simultaneous presence of two or more fingers. Multi-finger applications are becoming popular in smart phone and computer applications, particularly with support for multi-finger gestures integrated into the new Microsoft Windows 7 OS. The patent is a fundamental patent to the detection of multi-fingers that allows for any subsequent multi-finger applications to be implemented.

Elan filed a complaint asserting the patent against Apple Inc. in April 2009. That complaint also alleged that Apple infringes Elan's US Patent No. 7,274,353, which is directed to touchscreens capable of switching between keyboard and handwriting input modes.

In late 2008 Elan settled the lawsuit it brought against Synpatics Inc. over infringement of patent no. 5,825,352, resulting in a license agreement between the companies. That settlement was reached after the district court in California found that certain Synaptics touchpads included multi-finger detection methods that infringed the patent. The court also issued a preliminary injunction against Synaptics Inc. In reaching that decision, the court affirmed the validity of the patent.

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