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US 7,010,803 B2Granted
Method and apparatus for delivering secured telephony service in a hybrid coaxial cable network
AssigneesMediaOne Group, Inc., U S West, Inc.
InventorGregory J. Beveridge
Life of this patent
Estimating the term…
Abstract
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.
Claims8
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.
4 more elements
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.
3 more elements
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.
2 more elements
Dependencies are inferred from the claim text.