Burst Access to Memory in Optical Line Terminal
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United States of America Patent
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N/A
Issued Date -
Dec 4, 2014
app pub date -
Sep 9, 2013
filing date -
May 31, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The Optical line terminal (OLT) tracks the number of data packets, bandwidth per user, and other data packet statistics. DDR (DRAM) is used to store the information tracked by the OLT. The DDR is accessed in a burst mode. In particular, the data is initially stored in an on-chip cache memory and then the data is sent periodically to the DDR in a burst mode. Leaky buckets can be used for each flow, and time stamps can be used to determine the last time the bucket was accessed.
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