Four Korean companies including LG Electronics and LG Innotek have been sued for patent infringement by a U.S. company.
VIAVI filed a complaint with the U.S. International Trade Commission (ITC) to initiate an investigation under Section 337 of the Tariff Act of 1930, against the four Korean companies -- LG Electronics, LG Electronics U.S.A., LG Innotek, and Optrontec, according to a press release distributed by VIAVI on Nov. 19.
VIAVI is a supplier of optical filters for smartphone cameras to Apple. The company is unrivaled in the technology of sensing three-dimensional motions.
The patent claimed by VIAVI concerns optical filter technology. An optical filter is required when a 3D motion sensing device is applied to a smartphone.
If the ITC rules in favor of VIAVI, LG Electronics will not be able to export some smartphones and tablet PCs including the G8 smartphone to the United States.
LG Innotek supplies optical filters for smartphone cameras to LG Electronics and Optrontec to LG Electronics and Samsung Electronics.
VIAVI also filed a lawsuit against Optrontec in Seoul District Court in March.