Method and apparatus for automatically and adaptively adjusting telephone audio quality and DSL data rate in a DSL system

  • US 6,154,524 A
  • Filed: 01/29/1999
  • Issued: 11/28/2000
  • Est. Priority Date: 01/28/1998
  • Status: Expired due to Term
First Claim
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1. A method for maximizing a DSL data rate commensurate with a known tolerable level of distortion on a communication channel to which is connected at least one conventional plain old telephone service (POTS) device and at least one digital subscriber line (DSL) device, comprising the steps of:

  • varying an output signal of a first DSL device by gating said output signal on and off according to a time sequence to produce a time-varied DSL signal on the communication channel;

    measuring a non-linear distortion on the communication channel caused by the time-varied DSL signal a first time;

    adjusting the transmit parameters of said output signal a first time based on said measured distortion; and

    transmitting said adjusted output signal.

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