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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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