发明名称 Method and apparatus for simultaneously transmitting video, sound, data and ordinary telephone service, bidirectionally over an ordinary twisted pair
摘要 An apparatus and method for modulating and simultaneously bi-directionally transmitting full-motion, television-quality color video signals and associated audio and data signals, together with a digital subscriber line (DSL) and plain old telephone service (POTS) over a single ordinary twisted copper pair telephone (TCP) wire. Video signals are transmitted using vestigial sideband transmission such that each video signal occupies approximately 6 MHz of bandwidth on the TCP wire. DSL data signals and POTS signals are transmitted on the TCP wire at non-interfering frequencies as are the audio and data channels associated with the video signals.
申请公布号 US2003196210(A1) 申请公布日期 2003.10.16
申请号 US20030372462 申请日期 2003.02.21
申请人 ALVES JOHN P. 发明人 ALVES JOHN P.
分类号 H04L27/26;H04N7/10;H04N7/14;H04N7/16;(IPC1-7):H04N7/173;H04B1/56;H04L5/14;H04Q7/20 主分类号 H04L27/26
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