Data switching nodes
US5425022A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1993 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Dec 6, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A data switching node includes a plurality of data lines including high speed data (link) lines and low speed data (port) lines and a switch connected to the data lines. The switch is a distributed multiplexer comprising a number of switching modules connected in common to a data bus. The switching modules are arranged to communicate data with the common data bus. A control module is also connected to the bus and arranged to control the addressing of the switching modules so that data received by a switching module connected to one data line is transmitted directly via the common data bus to a switching module connected to a selected other one of the data lines in response to a control signals from the control module identifying the said switching module, the data being transmitted in association with a logical channel number associated with the switching module connected to the selected other one of the data lines. IN a method of operating a multiplexer particularly suitable for use with the data switching node a plurality of channels are received and transmitted as byte-interleaved frames. Each incoming channel is assigned a logical channel number and written to a byte or bit pos…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.