Packet-switched communications network for efficiently switching non-burst signals
US4815071A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1987 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Aug 14, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/43
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a packet-switched communications network, each of a plurality of node stations is responsive to a request for a circuit-switched call from a source user terminal and transmits a control packet and a message packet in succession to the other node stations. The control packet contains a source address, a destination address, a unique address and a time slot number identifying the time slot in which the circuit-switched call is to be carried. The message packet contains the same unique address as that sent with the preceding control packet and a plurality of time slots identified by the time slot numbers containing in various control packets. On receiving a message packet having the same unique address as that sent with a previous control packet, a destination station extracts an information signal from the message packet using the time slot number contained in the previous control packet and supplies the extracted signal to a user terminal identified by the destination address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.