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Judge Claudia Wilken of the U.S. District Court for Northern California issued the order late last week in a patent infringement case filed against Sony Computer Entertainment by Immersion, a San Jose, Calif.-based developer of "haptics" technology. Among other applications, the technology can generate force feedback in games so that the game controller rattles in response to events during play.
Immersion claims that Sony's implementation of force feedback in its PlayStation 2 and the original PlayStation consoles infringes on its patents. Microsoft paid the California company $26 million two years ago to settle similar claims regarding its PC joysticks and other products.