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Analog Conference Bridge Disclosure Number: IPCOM000060965D
Original Publication Date: 1986-Jun-01
Included in the Prior Art Database: 2005-Mar-09

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Andrade, RJ Bjorklund, RE Hicks, RJ Troop, WC [+details]


This article describes a conference circuit of relatively simple configuration with moderate capacity and minimum interface in an integrated communication network. Traditional problems encountered in analog conference circuits, such as instability, loss and impedance mismatching, have been minimized by the circuit disclosed herein. The summing algorithm used in this conference bridge sums the information of all participating channels into a composite signal. This total response is then transmitted to all the participants with the contribution from each participant subtracted from the composite sum of each participant's own phone.