System and process for controlling the flow of either data packets or channel signals in an asynchronous time multiplexer
US4993024A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1988 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Apr 18, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5647
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and process for controlling the flow of packets carried by asynchronous time multiplex (EPACi) channels. The packets from one communication link are identified by their label and the identity of the multiplex channels which carries them. The process is comprised of allocating for each communication a predetermined clock rate and a predetermined threshold value, measuring the difference between the number of packets entering belonging to the communication and the number of pulses generated by the clock, lower bounding this difference, and, if the difference reaches a predetermined threshold, triggering a signal (DEP) which causes the detection of packets belonging to the communication in question as long as the difference is not less than the predetermined threshold. The signal (DEP) is used by the control means of a switch (XPAC) which transmits to the source of the communication in question a message requesting it to reduce its rate, when this is possible, and, in any event, a message warning it of a loss of packets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.