Anadex Data Communications LLC, an Equitable IP Corporation plaintiff, has filed separate Eastern District of Texas cases against AT&T (4:25-cv-00317), Charter Communications (Spectrum Management) (4:25-cv-00321), CenturyLink Communications (4:25-cv-00319), Frontier Communications (4:25-cv-00320), and Verizon (4:25-cv-00322). Throughout this campaign, Anadex has taken aim at the provision of video surveillance systems with a single patent generally related to processing analog video frames. The plaintiff repeats the same articulation of the accused products across this latest round of complaints: “security video camera DVR recording system(s) that have analog inputs as well as analog outputs, which by way of example include, without limitation, Defendant’s set top boxes, cable boxes, digital video recorders, and similar systems”.