Norman IP Holdings [NPE] filed suit against Porsche Cars North America, alleging that Porsche’s infotainment systems infringe five patents related to a clock generator, an interrupt enable circuit, privately communicating signals over a wireless communications network, providing inter-processor communication in a multi-processor architecture, and a servo loop apparatus.  Norman IP filed suit in February 2011 against nine defendants including Canon, Lenovo, and Olympus, then again in September 2011 against Brother International and Lexmark. Norman IP later amended the complaint to include 19 additional defendants including TomTom, Vizio, and ZTE.  Norman IP was also subject to two actions for declaratory judgment initiated by Kyocera and Sierra Wireless in April 2010 and a third from TomTom in February 2012.  The patents-in-suit originated with Advanced Micro Devices and were assigned to Norman IP by Saxon Innovations in 2010. In January 2010, RPX entered an agreement with Saxon that included the right to sublicense clients as of that time to the patents now asserted by Norman.  7/31, Eastern District of Texas, no judge yet assigned, 6:2012cv00488.