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WIRED COMMUNICATIONS SYSTEMS WITH IMPROVED CAPACITY AND SECURITY

  • US 20140286489A1
  • Filed: 06/09/2014
  • Published: 09/25/2014
  • Est. Priority Date: 10/19/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • transmitting first data comprising a cryptovariable in a first direction from a first device to a second device over a cable in a cable communication network;

    receiving the first data comprising the cryptovariable at a second device;

    transmitting second data from the second device over the cable in a second direction, using a division-free duplexing (DFD) technique, and wherein transmitting the second data from the second device comprises transmitting broadband noise from the second device while the first device transmits the cryptovariable to the second device; and

    removing the broadband noise from the first data received at the second device using the DFD techniques to recover the cryptovariable.

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