AIM IP [NPE] filed seven separate suits against Altigen Communications, Dialogic, Gigaset Communications, Network Equipment Technologies, Polycom, UTStarcom and ZyXEL Communications, alleging that the defendants’ VoIP products that “support or utilize a system for coding and/or decoding feature vectors of a signal according to the G.729B standard” infringe a patent related to signal compression. AIM IP has filed one prior suits since April 2011 against Avaya, Cisco, D-Link, Grandstream Networks, Hellosoft, HP, Mitel Networks, Skype, and Sonus Networks involving the same patent.  The patent-in-suit originated with Rockwell International Corporation, which assigned the patent to its semiconductor division Conexant Systems in December 1998.  In January 1999 Conexant Systems was spun-out and became an independent semiconductor business. In October 2010, Conexant Systems assigned the patent-in-suit to AIM IP.  RPX reviewed the patent-in-suit in the open market in January 2011 (AIM 1 – Acq).  6/7, Central District of California, Magistrate Judge Robert N. Block, 8:2012cv00904, 8:2012cv00905 8:2012cv00908, Magistrate Judge Jean P Rosenbluth, 8:2012cv00906, 8:2012cv00911, Magistrate Judge Marc L. Goldman,  8:2012cv00910, Magistrate Judge Arthur Nakazato,  8:2012cv00912.