Jitter buffer state management system for data transmitted between synchronous and asynchronous data networks
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United States of America Patent
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Dec 20, 2005
Grant Date -
N/A
app pub date -
Aug 13, 2001
filing date -
Aug 13, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system (100) for receiving data from an asynchronous network and transmitting such data onto a synchronous network includes a voice packet buffer memory system (108) with a jitter buffer (118) having groups of entries storing data for voice channels and jitter buffer valid bit (JBVB) memory (120) for status of a particular entry for multiple jitter buffer groups. Writing or reading data from a jitter buffer entry sets a corresponding JBVB memory bit to a valid or invalid state respectively. Jitter buffer data may be read with a corresponding state memory bit. If a corresponding JBVB memory bit is valid, data from a jitter buffer (118) may be provided as an output. If a corresponding JBVB memory bit is invalid, a loss recovery algorithm may compensate for such invalid jitter buffer data.
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