发明名称 METHOD AND APPARATUS FOR DELIVERING SECURED TELEPHONY SERVICE TO A HYBRID COAXIAL CABLE NETWORK
摘要 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. Power is supplied to the subscriber's telephone through the coaxial cable network.
申请公布号 CA2173003(A1) 申请公布日期 1994.11.29
申请号 CA19942173003 申请日期 1994.05.26
申请人 U S WEST TECHNOLOGIES, INC. 发明人 SKINNER, RUSSELL A., SR.
分类号 H04M1/68;H04M19/00;(IPC1-7):H04M1/68 主分类号 H04M1/68
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