Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2006-06-06
2006-06-06
Ho, Duc (Department: 2665)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S401000
Reexamination Certificate
active
07058048
ABSTRACT:
A subjective quality monitoring system for packet based multimedia signal transmission systems which determines, during more than one interval of a single call, the level of one or more impairments and determines the effect of said one or more impairments on the estimated subjective quality of said multimedia signal. The quality monitoring system comprises a plurality of quality monitoring functions located at the multimedia to packet conversion points.
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Ho Duc
Smith Gambrell & Russell
Telchemy, Inc.
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