Rambus has filed multiple suits against Broadcom, Freescale, LSI, MediaTek, Nvidia and STMicroelectronics asking courts to bar imports of a wide range of chips and systems using them.
Rambus claims cover widely used interconnects such as PCI Express, Serial ATA, Serial Attached SCSI and DisplayPort. Rambus claims a separate set of patents listed in the complaint, the Barth portfolio, covers a broad set of memory interfaces including DDR, DDR2, DDR3, mobile DDR, LPDDR, LPDDR2, and GDDR3 memory controllers.
The lawsuit asks the ITC to bar import into the U.S. of any systems products that include allegedly infringing chips. These products range from PCs and servers to routers, mobile phones, set-top boxes and hard disk drives.
The ITC is expected to decide whether to initiate an investigation under this complaint within 45 days.
Rambus filed a separate patent infringement suit against Broadcom, Freescale, LSI, MediaTek and STMicroelectronics in the U. S. District Court for the Northern District of California. It alleges chips with certain memory controllers infringe Rambus patents. A separate suit was filed against Nvidia related to the dally portfolio.
