KABELTELEVISIESTELSEL.

摘要

A system for substantially reducing the effects of noise and interference in the upstream transmission path of a two-way CATV system. In one embodiment, a local processing center located at the headend of the cable television system locates a noise source and then commands selected phantom subscriber units in the system to close predetermined radio frequency switches to only allow a desired upstream transmission to be passed to the headend and to switch out all other upstream transmission paths not being used.