(Telecompaper) Rovi announced that it has sued Comcast for patent infringement after numerous attempts at negotiation. Rovi's filing asserts infringement by Comcast, together with its set-top box suppliers, of fourteen US patents that together deliver the most important features to Comcast customers. These features include the way that Comcast implements remote recording, AnyRoom DVR and X1 search. Rovi seeks both an injunction barring continued infringement and damages to compensate it for the harm inflicted by that infringement.