Patent Number: 6,167,060

Title: Dynamic forward error correction algorithm for internet telephone

Abstract: An Internet telephone system architecture having low latency and permitting voice communication between telephones and computers is disclosed. The architecture permits dynamic packet-to-packet change in various factors to adjust for Internet conditions. A forward error correction algorithm provides a variable level of redundancy from zero to three in the transmission of data packets. The level of error correction redundancy, the codec selection and other factors, are dynamically changeable by a voice port to replace lost packets without interpolation and to thereby maintain the highest voice quality and data compression ratio that is consistent with the quantity of packet loss.

Inventors: Vargo; Mike (San Mateo, CA), Chang; Jerry (Los Altos, CA)

Assignee: Clarent Corporation

International Classification: H03M 13/35 (20060101); H04L 1/00 (20060101); H03M 13/03 (20060101); H03M 13/00 (20060101); H04M 7/00 (20060101); H04M 3/08 (20060101); H04M 3/12 (20060101); H04J 003/22 ()

Expiration Date: 12/26/2017