Communication network with time coordinated station activity by time slot and periodic interval number
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United States of America Patent
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Jul 16, 1996
Grant Date -
N/A
app pub date -
Apr 28, 1993
filing date -
Apr 28, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
Activity on a digital communication network is divided into periodic intervals and during a segment of each periodic interval a moderator station broadcasts a numerical count of the periodic intervals to all stations on the network. Each station has a memory in which a numerical value is stored, and a comparator that compares the numerical value to the numerical count received from the network. When the numerical count of the periodic intervals equals the numerical value, an apparatus within the station performs a defined operation, such as transmitting a message over the network or synchronizing a clock in the station to a master time standard. The equality of the periodic interval count and the numerical value also can be used to determine when to signal an external device. By using the count of the periodic intervals in this manner, the operation of several stations on the network can be coordinated.
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