System and method for dynamically changing error algorithm...

Details System and method for dynamically changing error algorithm... System and method for dynamically changing error algorithm...

2007-10-23

2007-10-23

To, Doris H. (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

C704S207000

Reexamination Certificate

active

09993104

ABSTRACT:
The invention is concerned with improvements in full duplex Internet telephone systems with a system architecture having low latency and permitting voice communication with telephone to telephone or PC to telephone connections. The architecture permits dynamic packet-to-packet change in codec to adjust for Internet conditions. The voice port creates self-describing packet conditions so that the higher-level software of the system is independent of codec selection. In addition to adjusting the codec, the voice port has the capability of dynamically and concurrently selecting other factors such as the level of error correction redundancy, the packet size and packet bundling on a packet-to-packet basis. The invention further includes a technique to eliminate dead air spaces in the voice data transmission stream by speeding up or slowing down the data rate in the buffer while maintaining a constant pitch of speech.

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