Multiple data rate digital switch for a TDMA communications controller
US4332026A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1980 |
| Grant date | May 25, 1982 |
| Priority date | — |
| Expiry date | Mar 7, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/212
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multiple data rate digital switch for a TDMA communications controller is disclosed which can service a plurality of input/output ports having many different data rates on a time divided basis, either between ports connected to the same controller or between ports connected to different, geographically remote controllers. A transmit burst buffer and a receive burst buffer are connected between the local ports and a TDMA communication link and an intranodal buffer is connected between local ports. All three buffers are accessed by a switch control memory which stores n.sub.i control words for each of the ports which are scanned m times per TDMA frame, there being a frame rate of f frames per second. Thus, the ports are selected and their data is buffered at a rate R.sub.i which is equal to the product of n.sub.i times m times f. In this manner, ports having a variety of data rates can be serviced on a time interleaved basis with maximum connectivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.