Method for transmitting, via a plurality of asynchronously time-

Details Method for transmitting, via a plurality of asynchronously time- Method for transmitting, via a plurality of asynchronously time-

1990-01-30

1991-04-09

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 941, H04J 316

Patent

active

050070436

ABSTRACT:
The flow of data cells through a transmission medium with a plurality of virtual, asynchronously time-divided transmission channels is protected against excessive crowding of data cells in any channel, or of any customer, by means of a counter for each channel and the recording of the time or arrival of data cells in each channel. The counter is advanced by a predetermined amount at the arrival of each data cell and in the same operation is decreased by a value which is a function of the length of time between the moment of arrival of that data cell and the moment of arrival of a preceding data cell with the same channel designation. The state of the counter is also compared with a threshold value which, if equalled or exceeded results in the data cell not being switched through a switch controlled by the comparison, while in other cases the data cell is let through to the downstream portion of the channel.

REFERENCES:
patent: 4769811 (1988-09-01), Eckberg, Jr. et al.
International Switching Symposium 1987, IEEE, pp. 462-469.

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