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Method and system for combining symmetric DSL signals and voice signals

  • US 20040146068A1
  • Filed: 01/07/2004
  • Published: 07/29/2004
  • Est. Priority Date: 10/22/1999
  • Status: Active Grant
First Claim
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1. A system for communicating a telephony voice signal and an SDSL signal on a single combined line where the frequency spectrum of the telephony voice signal during steady state conditions and the frequency spectrum of the SDSL signal may overlap, and where the telephony voice signal may include a plurality of transients during non-steady state conditions the system including:

  • a) a first combiner coupled to a telephone switch on a first voice line for communicating the telephony voice signal and to a first SDSL device on a first data line for communicating the SDSL signal, the first combiner including means for communicating both the telephony voice signal and the SDSL signal on the single combined line without significantly corrupting or interrupting the SDSL signal and the telephony voice signal even when transients are present on the telephony voice signal and where the first SDSL device may be disrupted when such transients exist on the first data line; and

    b) a second combiner coupled to a telephony device on a second voice line for communicating the telephony voice signal, to a second SDSL device on a second data line for communicating the SDSL signal, and to the first combiner via the single combined line for communicating both the telephone voice signal and the SDSL signal, the second combiner including means for communicating the telephony voice signal and the SDSL signal on the single combined line without significantly corrupting or interrupting the SDSL signal and the telephony voice signal even when transients are present on the telephony voice signal and where the second SDSL device mat be disrupted when such transients exist on the second data line.

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