Method and system for multiplexing telephone line circuits to highway lines
US4998249A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1988 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Oct 28, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/1647
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for multiplexing data between a set of line circuits and a set of time division multiplexed highway lines connected to a central switch. Line circuits are organized into clusters of fixed numbers of circuits. Groups of four clusters send data to and receive data from a single multiplexer/demultiplexer. One or more multiplexers may be connected to the same set of highways. A single master processor performs all of the highway and time slot assignments for the network. These assignments are made so that each cluster will transmit or receive during consecutive time slots on a single highway line. The multiplexer is capable of providing conductivity between any cluster and any of the highways. The highway and time slot assignments for each cluster may be altered by reprogramming the multiplexer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.