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US Patent 5384772 - Method and apparatus for audio flow control during teleconferencing

US Patent Issued on January 24, 1995
Estimated Patent Expiration Date: Icon_subject September 1, 2013Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
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Abstract

Methods, apparatuses, and systems for processing audio data for a teleconference. A preferred system has a bridge terminal and a plurality of client terminals configured on a local area network. The bridge terminal intermittently receives packets of audio data from each client terminal, selectively mixes the audio data, and transmits packets of mixed audio data to the client terminals. The rate at which the bridge terminal mixes data is preferably greater than the rates at which the client terminals capture and play back audio data. Each client terminal implements special processing to determine how to handle each new packet of mixed audio data received from the bridge terminal. The special processing is based on the number of packets in the receiving buffer of the client terminal.

Inventor

Application

No. 115345 filed on 09/01/1993

US Classes:

370/235, Flow control of data transmission through a network370/266, Using summation of conferee signals370/389, Switching a message which includes an address header379/202.01Conferencing

Examiners

Primary: Marcelo, Melvin

Attorney, Agent or Firm

US Patent References

4792942, Method and apparatus for multi-destination communication processing in packet storage/exchange node
Issued on: 12/20/1988
Inventor: Osato
4953159, Audiographics conferencing arrangement
Issued on: 08/28/1990
Inventor: Hayden, et al.
5127001, Conference call arrangement for distributed network
Issued on: 06/30/1992
Inventor: Steagall, et al.
5317567Multi-speaker conferencing over narrowband channels
Issued on: 05/31/1994
Inventor: Champion

International Class

H04L 012/18

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