Method and apparatus for converting synchronous narrowband signals into broadband asynchronous transfer mode signals
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United States of America Patent
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Sep 15, 1998
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N/A
app pub date -
Mar 19, 1996
filing date -
Mar 19, 1996
priority date (Note) -
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Abstract
To provide a monolithic ATM transport the synchronous to asynchronous converter (SAC) of the invention converts the synchronous narrowband signals to composite cell ATM format. These cells can be combined with ATM video and data signals and can be delivered as an ensemble of ATM cells over either a standard SONET transport format or analog network to the customer premise. To convert the synchronous signals, the SAC provides format conversion needed to provide voice and other narrowband signals over ATM. The SAC also functions to agilely move between cell sizes such that the 48 bytes of the cell payload can be mapped to carry anywhere between the single and 48 connections. Thus, the SAC adjusts the cell configuration to balance performance and bandwidth use in a real-time manner.
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