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Line probe signal and method of use

  • US 6,693,992 B2
  • Filed: 01/16/2001
  • Issued: 02/17/2004
  • Est. Priority Date: 01/16/2001
  • Status: Expired due to Term
First Claim
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1. A system for receiving a periodic sequence for use in line probing a line comprising:

  • a filter to isolate a desired portion of a received line probe sequence signal; and

    a correlator configured to process the sequence signal to thereby obtain an approximation of the channel response to an impulse signal, wherein the impulse signal provides information regarding the characteristics of the line, and wherein the correlator comprises;

    a sequence generator configured to generate a second sequence signal, the second sequence signal being generally similar to the sequence signal that was transmitted to the system;

    a multiplier configured to multiply the sequence generator output with the received signal; and

    an accumulator configured to create a running summation of the output of the multiplier.

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