Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2001-09-27
2009-11-03
Phan, Man (Department: 2419)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S328000, C370S412000, C370S462000
Reexamination Certificate
active
07613167
ABSTRACT:
A traffic prioritization system performs a coarse classification of upstream bursts at the physical interface of a headend communications device. The headend device monitors and controls communications with a plurality of remote communications devices throughout a widely distributed network, including the Internet. The traffic prioritization system includes a burst receiver that receives and sends the upstream bursts to a classifier. At an appropriate time, the classifier receives the upstream bursts and queries a priority lookup table (LUT) to determine a priority classification. The priority classification is used to separate the bursts into two or more priority levels. The higher priority level is used to designate services having a low tolerance for delay, such as telephony. Upon classification, the upstream bursts are forwarded to one of several priority queues. Each priority queue corresponds to at least one priority level. The headend device services each priority queue such that the higher priority queues are serviced before the lower priority queues.
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Denney Lisa
Horton John
Pantelias Niki
Shallow Gale
Broadcom Corporation
Phan Man
Sterne Kessler Goldstein & Fox P.L.L.C.
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