Health technology company iLife sued Nintendo in 2013, saying Wii and Wii U console controllers used technology it had patented.
Nintendo said in court the technology in iLife’s patent was not specific enough to cover the way Nintendo used motion-sensing technology.
iLife said this system of measuring movement was the same as the technology it had developed for monitors that could spot if old people had fallen.
A jury agreed with this assertion when the case and damages were decided last week.
iLife wants a royalty of $4 on every one of the 36 million Wii consoles sold in the six years before it launched its legal action.
Nintendo said it intended to continue its defence of its own technology in the courts.
