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1. (WO1994028665) METHOD AND APPARATUS FOR DELIVERING SECURED TELEPHONY SERVICE IN A HYBRID COAXIAL CABLE NETWORK

Pub. No.:    WO/1994/028665    International Application No.:    PCT/US1994/005967
Publication Date: Dec 8, 1994 International Filing Date: May 26, 1994
IPC: H04N 7/14
H04M 11/00
H04M 11/06
H04M 3/12
H04M 7/00
H04N 7/173
H04Q 11/02
H04Q 3/42
H04H 60/96
H04M 3/20
Applicants: U S WEST TECHNOLOGIES, INC.
Inventors: BEVERIDGE, Gregory, Joseph
Title: METHOD AND APPARATUS FOR DELIVERING SECURED TELEPHONY SERVICE IN A HYBRID COAXIAL CABLE NETWORK
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.