The U.S. International Trade Commission is investigating Samsung for possible trade violations in response to a complaint filed by Swedish network equipment vendor Ericsson. The ITC said it's investigating whether a wide range of Samsung products, including smartphones, tablets, and televisions, are being imported to the U.S. in violation of U.S. trade law. Ericsson says the products infringe some of its patents. If the ITC agrees, it can stop the products being imported.