Communication network with time coordinated station activity by

Details Communication network with time coordinated station activity by Communication network with time coordinated station activity by

1993-04-28

1996-07-16

Lee, Thomas C.

Multiplex communications

Wide area network

Packet switching

39520019, 395865, 3952002, 370 953, 3701001, 364DIG1, 3642425, 364238, 364DIG2, 364919, 3649406, 36494203, 3649427, 3649459, 3649421, G06F 13372, H04J 316

Patent

active

055375499

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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