On March 1 Sony Computer Entertainment America Inc. agreed to forgo its appeal and fork over $150 million to a company that claimed patent rights on the “rumble” feature used in Sony’s PlayStation video games. The move ends a five-year dispute between Sony and Immersion Corporation, a San Josebased hardware and software developer.
In 1995 Immersion filed for two patents on technology for producing vibrations. Three years later, Sony introduced the PlayStation, which included a feature that made the controller vibrate when action occurred on screen. Immersion received one patent in 2001 and a second in 2002; it subsequently sued Sony and Microsoft Corporation for infringement in federal district court in Oakland.
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