Adaptive jitter buffer for internet telephony

Details Adaptive jitter buffer for internet telephony Adaptive jitter buffer for internet telephony

2005-03-01

2005-03-01

Ngo, Ricky (Department: 2664)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

C370S235000, C370S252000, C370S253000, C370S517000, C370S519000, C370S508000, C370S429000

Reexamination Certificate

active

06862298

ABSTRACT:
In an improved system for receiving digital voice signals from a data network, a jitter buffer manager monitors packet arrival times, determines a time varying transit delay variation parameter and adaptively controls jitter buffer size in response to the variation parameter. A speed control module responds to a control signal from the jitter buffer manager by modifying the rate of data consumption from the jitter buffer, to compensate for changes in buffer size, preferably in a manner which maintains audio output with acceptable, natural human speech characteristics. Preferably, the manager also calculates average packet delay and controls the speed control module to adaptively align the jitter buffer's center with the average packet delay time.

REFERENCES:
patent: 4630261 (1986-12-01), Irvin
patent: 5142583 (1992-08-01), Galand et al.
patent: 5333299 (1994-07-01), Koval et al.
patent: 5526353 (1996-06-01), Henley et al.
patent: 5708756 (1998-01-01), Wang et al.
patent: 5737531 (1998-04-01), Ehley
patent: 5883891 (1999-03-01), Williams et al.
patent: 5899966 (1999-05-01), Matsumoto et al.
patent: 5907822 (1999-05-01), Prieto, Jr.
patent: 5933803 (1999-08-01), Ojala
patent: 5996018 (1999-11-01), Duault et al.
patent: 6012026 (2000-01-01), Taori et al.
patent: 6212206 (2001-04-01), Ketcham
patent: 6259677 (2001-07-01), Jain
patent: 6301258 (2001-10-01), Katseff et al.
patent: 6360271 (2002-03-01), Schuster et al.
patent: 6366959 (2002-04-01), Sidhu et al.
patent: 6377931 (2002-04-01), Shlomot
patent: 6389032 (2002-05-01), Cohen
patent: 6452950 (2002-09-01), Ohlsson et al.
patent: 6580694 (2003-06-01), Baker

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