Preemptive priority-based transmission of signals using virtual channels
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United States of America Patent
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Nov 12, 1996
Issued Date -
N/A
app pub date -
Nov 15, 1994
filing date -
Nov 24, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
A computer system for transmitting two or more types of signals. Each type of signal is assigned a priority level. Signals of a particular type are transmitted as they become ready for transmission, unless signals of a different type having a greater priority become ready for transmission. In that case, the transmission of the low-priority signals is interrupted to allow transmission of the high-priority signals. The transmission of the low-priority signals is resumed after the transmission of the high-priority signals is complete. In a preferred embodiment directed to conferencing systems, audio signals are assigned higher priorities than video, data, and control signals in order to provide a high-quality to the audio portion of a conferencing session.
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