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Impulse Technology drops Nintendo patent infringement lawsuit

Impulse Technology Ltd. voluntarily dropped its patent infringement lawsuit against Nintendo of America, according to a press release released today by Nintendo.

Impulse argued that several Nintendo products, including the Wii console, Wii Remote, Wii Balance Board and Wii Fit Plus game infringed on a U.S. Patent No. 5,524,637 held by Impulse Technology, which reads:

A system is provided for monitoring the physiological exertion of a user. One or more sensors are attached to the limbs of the user to measure the user's motion. The sensors can measure either the acceleration or the force on the limbs. The measured signal is transmitted to a monitor by a wireless transmitter, such as an infrared, acoustic or radio transmitter. The monitor determines and displays the level of physiological exertion of the user by a mathematical formula or a look up table based on the measured motion of the user.

According to Nintendo, the plaintiff abandoned the lawsuit "following an unfavorable decision from Judge James Gwin of the U.S. District Court in Cleveland that undermined Impulse’s legal arguments."

"We are very pleased with the court's ruling, which forced Impulse to walk away from this lawsuit," said Richard Medway, Nintendo of America's deputy general counsel. "Nintendo vigorously defends patent lawsuits when we firmly believe that we have not infringed another party's patent. We will continue our tradition of developing unique and innovative products while respecting the intellectual property rights of others."

We have reached out to Impulse for comment and will update this story as more information becomes available.