US 2003/0081594 A1 · Audio packet switching system

Abstract

The present invention relates to an IP based or network based audio packet switching system, and more specifically to an audio packet switching system for integrating each independent module into a single interface for consistent control and data flow. Independent modules, such as a RTP/RTCP, encoder/decoder and mixer, are interworked with reception and transmission buffers to make a system more flexible. Additionally, audio data paths inside the switch are controlled through an audio packet router. The multi protocol system employing the RTP provides a single RTP control interface for transmitting and receiving audio packets to completely manage the system totally and raises a degree of resource utilization of the system by making it easy to implement additional functions to the RTP and coder through the buffers.

Claims22

Dependent claims

An audio packet switching system, comprising:

a real time protocol unit including interface functions to perform real time protocol processing and controlling;
a plurality of buffers coupled to correct a transmission speed of audio data transmitted and received irregularly to and from the real time protocol unit, and to correct for data lost during transmission;
an audio coder unit coupled to compress and recover the audio data transmitted and received from the plurality of buffers and to perform data mixing between channels according to a user selection;
and
an audio packet router coupled to transmit audio packets received from the audio coder unit and to control data flow, wherein the real time protocol unit, the plurality of buffers, the audio coder unit, and the audio packet router comprise a single integrated system.

2 more elements

Dependencies are inferred from the claim text.

Audio packet switching system

Life of this patent

Audio packet switching system

Life of this patent

Abstract

Claims22