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Home network characterization method and system

  • US 8,558,552 B2
  • Filed: 09/24/2010
  • Issued: 10/15/2013
  • Est. Priority Date: 09/24/2010
  • Status: Active Grant
First Claim
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1. A method of characterizing a wiring network having a nominal impedance, comprising:

  • connecting first and second probes to the wiring network at first and second different locations;

    at the first probe, generating a first frequency sweep and measuring a first sweep response generated by the wiring network reflecting the first frequency sweep, wherein an impedance of the second probe is equal to the nominal impedance;

    changing the impedance of the second probe between the nominal impedance and a mismatch impedance different from the nominal impedance;

    at the first probe, generating a second frequency sweep and measuring a second sweep response generated by the wiring network reflecting the second frequency sweep, wherein the impedance of the second probe is equal to the mismatch impedance;

    at the second probe, generating a third frequency sweep and measuring a third sweep response generated by the wiring network reflecting the third frequency sweep, and wherein the impedance of the first probe is equal to the nominal impedance;

    changing the impedance of the first probe between the nominal impedance and a mismatch impedance different from the nominal impedance;

    at the second probe, generating a fourth frequency sweep and measuring a fourth sweep response generated by the wiring network reflecting the fourth frequency sweep, and wherein the impedance of the first probe is equal to the mismatch impedance; and

    ,processing the first, second, third, and fourth sweep responses so as to provide characterization of a transmission line between the first and second probes.

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