MANHASSET, N.Y. SigmaTel Inc. has filed suit in United States federal court in Austin against Actions Semiconductor, a China-based semiconductor supplier, for infringing multiple patents related to system-on-chip controllers used in portable MP3 players.
SigmaTel (Austin) seeks to stop shipment of products into the U.S. that use Actions Semiconductor's integrated circuits, which recently began shipping into the United States retail market as components of MP3 players.
In addition, SigmaTel is seeking Actions' payment of damages and an injunction to prohibit Actions from designing, manufacturing and selling the infringing MP3 IC's in the U.S.
SigmaTel is also considering asking the United States International Trade Commission (ITC) to investigate the case. The company will ask the ITC to grant all possible relief, including an exclusionary order to prohibit MP3 players that contain Actions' MP3 ICs from being imported into the U.S.
Further, SigmaTel will ask the ITC to issue a cease-and-desist order requiring retailers and distributors to remove from their shelves and destroy all MP3 players containing the infringing ICs.