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Device and method for isolating voice and data signals on a common carrier

  • US 5,930,340 A
  • Filed: 07/07/1997
  • Issued: 07/27/1999
  • Est. Priority Date: 07/07/1997
  • Status: Expired due to Term
First Claim
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1. A modular device for isolating voice signals and out-of-band data signals transmitted via a digital subscriber line (xDSL) transmission scheme on an internal telephone wire network having a plurality of standard telephone connectors, the modular device comprising:

  • a common connector having a male connector plug adapted to connect to a female-receptacle standard telephone connector of the internal telephone wire network, the common connector receiving the voice signals and the out-of-band data signals from the internal wire network when connected to the standard telephone connector;

    a data connector having a female receptacle configuration substantially similar to the standard telephone connector;

    a voice connector having a female receptacle configuration substantially similar to the standard telephone connector;

    a first filter coupled between the common connector and the data connector to filter out voice signals received by the common connector and to pass out-of-band data signals received by the common connector to the data connector;

    a second filter coupled between the common connector and the voice connector to filter out the out-of-band data signals received by the common connector and to pass the voice signals received by the common connector to the voice connector; and

    wherein the common connector, the data connector, the voice connector, and the first and second filters are collectively housed within the modular device which is removably positioned at a point of connection to the internal telephone wire network; and

    wherein the first filter and the second filter are active filters supplied by a power source housed within the modular device.

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