An apparatus for testing a video stream received at a subscriber site includes a coupling for receiving broadband RF signals communicated over a hybrid fiber coaxial (HFC) network, a signal level measurement circuit operably coupled to the coupling, the signal level measurement operable to generate signal...http://www.google.de/patents/US20070107034?utm_source=gb-gplus-sharePatent US20070107034 - Combination meter for evaluating video delivered via Internet protocol