Arris is under investigation by the International Trade Commission (ITC) for alleged patent infringements on set top and gateway components for cable and satellite reception, following a filing by Sony Electronics and Sony Corp last month. The ITC announcing it will begin digging deeper into Sony’s claims makes it two major legal moves in the space of a week for the US set top manufacturer, and the latest investigation seems to relate largely to the assets Arris inherited from Pace, although the juicy details are being kept under lock and key for the time being. Faultline Online Reporter reached out to Arris for comment, but were told that “unfortunately, Arris is not publicly commenting on this case – we have…