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Conference bridge which transfers control information embedded in audio information between endpoints

  • US 20050213726A1
  • Filed: 03/15/2005
  • Published: 09/29/2005
  • Est. Priority Date: 12/31/2001
  • Status: Abandoned Application
First Claim
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1. A conference bridge for multipoint conferencing among a plurality of endpoints via one or more networks, the bridge comprising:

  • a network interface for exchanging audio data with the plurality of endpoints, at least one endpoint providing audio data containing embedded control data, the control data being substantially humanly inaudible;

    an audio unit coupled to said network interface, said audio unit receiving audio data, mixing the received audio data, and transmitting the mixed audio data;

    a control data extraction module coupled to said network interface to extract the control data from the audio data; and

    a control data inclusion module coupled to said network interface and coupled to said control data extraction module to embed control data into audio data, wherein said control data extraction module and said control data inclusion module operate without decoding or encoding the control data.

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