Adaptive digital network interface
US4958342A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1989 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Nov 9, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/525
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multiplexing data communication system (10) provides for communication between a plurality of microcomputer terminals (12) with a host computer (30). Communications from the microcomputer (12) are multiplexed over a T1 line (26) between two DMI interfaces (22 and 24). The DMI interface (24) includes an adaptive digital network interface (62) which processes the multiplex data in a serial manner allowing for flexibility in framing the data and processing protocol information. Program control in the adaptive digital network interface (62) is performed in part by the status of three counters (266, 268 and 272) and the bit present at the output of the fifo memory (112) allowing for increased processing speeds. Furthermore, processing speed is enhanced through use of an instruction set allowing simultaneous strobing and enabling of the elements of the adaptive digital network interface (62).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.