Rambus has recently filed a complaint with the United States International Trade Commission (ITC) requesting the commencement of an investigation pertaining to products from several companies. The involved manufacturers include Broadcom Corporation, Freescale Semiconductor, LSI Corporation, MediaTek Inc., NVIDIA Corporation and STMicroelectronics N.V.

The company claimed that they’ve infringed certain patents from the Dally family of patents or certain patents from the Barth family of patents.

For the Dally patents, the accused semiconductor products from these companies include ones that incorporate PCI Express, certain Serial ATA, certain Serial Attached SCSI (SAS), and DisplayPort interfaces. In the case of the Barth patents, the accused semiconductor products include ones that incorporate DDR, DDR2, DDR3, mobile DDR, LPDDR, LPDDR2, and GDDR3 memory controllers. Accused semiconductor products in the complaint include graphics processors, media processors, communications processors, chip sets and other logic integrated circuits (ICs).

The ITC is expected to decide whether to initiate an investigation under this complaint within 30-45 days.