| 摘要 |
A method for providing signals in a conference call among a plurality of participants, and a signal used in the method. The participants on the call are ordered in a sequential ring, and inputs, representing audio and/or video input, are taken from at least some of the participants in the ring during succeeding time intervals. The inputs are placed in a signal that contains header information specifying the location of inputs in the signal, and the participant from whom the input was taken. That signal is circulated about the ring during which each participant replaces its input in the signal from the prior cycle with a current input. The combined signal is then played to the participant.
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