Method and apparatus for delivering secured telephony service in a hybrid coaxial cable network
View Patent ↗A hybrid coaxial cable network employing interdiction to ensure privacy in telephony communications. The video and telephony signals are secured such that telephony and interactive video signals to and from a subscriber do not appear on the network at any other undesired subscriber location.
1. A method for providing video and telephony services to a subscriber, comprising:
supplying a set of video signals and modulated telephony signals to a fiber optic transmission system;
converting optical signals on the fiber optic transmission system to electrical signals on a network coaxial cable system and simultaneously converting electrical signals on the network coaxial cable system to optical signals on the fiber optic transmission system;
selectively delivering the video signals on the network coaxial cable system;
modulating and demodulating the telephony signals on the network coaxial cable system;
combining the selectively delivered video signals and the demodulated telephony signals on a subscriber coaxial system; and
separating the demodulated telephony signals and the selectively transmitted video signals.
2. The method according to claim 1 , further comprising supplying power to a telephone at a subscriber location through the coaxial cable system.
3. The method according to claim 1 , further comprising combining the video signals with selected two-way special services on the subscriber coaxial system, and separating the selected two-way special services and the video signals.
4. The method according to claim 1 , wherein separating the video signals and telephony signals includes splitting the signals on the coaxial cable network onto an F-fitting coaxial connector and an RJ-11 telephone jack, blocking all telephony signals on the F-fitting connector, and blocking all video signals on the RJ-11 telephone jack.
5. The method according to claim 1 , wherein the video signals include interactive video services.
6. The method according to claim 1 , wherein telephony signals to end from one subscriber cannot be monitored by another subscriber.
7. A method for providing video and telephony services to a subscriber, comprising:
supplying a set of video signals and telephony signals to a fiber optic transmission system;
convening optical signals on the fiber optic transmission system to electrical signals on a network coaxial cable system and simultaneously converting electrical signals on the network coaxial cable system to optical signals on the fiber optic transmission system;
selectively delivering the video signals on the network coaxial cable system;
combining the selectively delivered video signals and the telephony signals on a subscriber coaxial system; and
separating the telephony signals and the selectively transmitted video signals.
8. A method for providing video and telephony services to a subscriber, comprising:
supplying a set of video signals and telephony signals, the video signals including interactive video services;
selectively delivering the video signals on a network coaxial cable system;
combining the selectively delivered video signals and the telephony signals on a subscriber coaxial system; and
separating the telephony signals and the selectively transmitted video signals on the subscriber coaxial system, wherein telephony signals to and from one subscriber cannot be monitored by another subscriber.