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Method for detecting bridged taps on telephony cable

  • US 20050243904A1
  • Filed: 05/03/2004
  • Published: 11/03/2005
  • Est. Priority Date: 05/03/2004
  • Status: Active Grant
First Claim
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1. A method of collecting and processing modem data, the method comprising:

  • during training of a broadband modem, sending a series of tones within a frequency transmission band of the broadband modem, the series of tones having a predetermined transmission power level;

    receiving the transmitted series of tones at a receiving broadband modem;

    receiving a measurement value of a power level for each of the received tones in the series of tones transmitted to the receiving broadband modem;

    determining a transmission loss for each of the series of tones by comparing the predetermined transmission power level and the received measured power level;

    performing a statistical match comparison between each of the received tone signals and a plurality of different computer models of a single transmission facility having various bridged taps connected to the single transmission facility; and

    determining a best fit between each of the received tone signals and at least one of the plurality of the bridged tap computer models.

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