Source selection for conference bridges

Details Source selection for conference bridges Source selection for conference bridges

2011-06-07

2011-06-07

Addy, Thjuan K (Department: 2614)

Telephonic communications

Special services

Conferencing

C379S201010

Reexamination Certificate

active

07957512

ABSTRACT:
The present invention provides an audio source selection process for a conference bridge. The conference bridge receives multiple audio sources and selects at least one of the audio sources based on the relative signal levels associated with the audio signal at each of the audio sources. The audio signals associated with the selected source are delivered to conference participants via one or more audio outputs. The conference bridge will repeatedly employ a selection process to select an audio source based on signal level measurements for the audio signals of the audio sources. During the selection process, the influence of a selected audio source relative to the other unselected audio sources is reduced, after the selected audio source has remained selected for more than a first time period.

REFERENCES:
patent: 5548638 (1996-08-01), Yamaguchi et al.
patent: 7668907 (2010-02-01), Janakiraman et al.
patent: 1246442 (2002-10-01), None
patent: 1549035 (2005-06-01), None
patent: 02/089458 (2002-11-01), None
European Search Report for EP 07394026, completed Feb. 15, 2008.

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