Cable modems; cable television set-top boxes; gateway routers in the nature of computer control hardware; network routers; network hubs and switches; media gateway routers in the nature of computer control hardware; multiplexers; digital video recorders; remote controls for televisions; televisions; television receivers; antennas; smart phones; cell phones; digital phones; telephones; computers; handheld computers; wireless communication devices for voice, data or image transmission; headphon...