Distributed digital exchange with improved switching system and input processor
US4488290A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1982 |
| Grant date | Dec 11, 1984 |
| Priority date | — |
| Expiry date | Aug 4, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/0407
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A distributed digital exchange for completing a communications link between a selected originating channel and one or more selected destination channels. The exchange includes an input bus containing a given number of input lines, with each input line for conveying a time-division-multiplexed plurality of time-division-multiplexed input signals, with each data bit position of every frame of each input signal defining a discrete originating channel; a clock system for providing timing signals for defining frames and bit positions corresponding to the frames and bit positions of the input signals; an exchange bus containing at least the given number of lines for conveying the input signals; a novel input processor for receiving the input signals, for synchronizing the input signals in response to the timing signals and for transferring each received plurality of input signals from a selected line of the input bus to a selected line of the exchange bus; an output bus containing at least the given number of output lines, with each output line for conveying a time-division-multiplexed output signal, with each data bit position of every frame of each output signal defining a discrete des…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.