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Method and apparatus for simultaneously transmitting video, sound, data and ordinary telephone service, bidirectionally over an ordinary twisted pair

  • US 20030196210A1
  • Filed: 02/21/2003
  • Published: 10/16/2003
  • Est. Priority Date: 02/22/2002
  • Status: Abandoned Application
First Claim
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1. A method for simultaneously transmitting video information, an associate audio signal, a full-duplex data communication signal, a DSL signal and a telephonic audio signal over a single twisted copper pair wire, comprising the steps of:

  • frequency modulating a first carrier signal in accordance with a first composite video signal to produce a first FM signal comprising a first upper sideband and a first lower sideband;

    filtering said first FM signal with a first band pass filter to suppress said first upper sideband and to pass said first lower sideband to produce a first filtered signal having a frequency bandwidth of approximately 6 MHz;

    frequency modulating said first carrier signal in accordance with a first communications signal to create a first combined signal, such that said first filtered signal is not degraded by said first communications signal;

    frequency modulating said first carrier signal in accordance with a first voice signal to create a first VVD signal, such that said first combined signal is not degraded by said first voice signal; and

    injecting said first VVD signal into a TCP wire.

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