Multiplexed data communications using a queue in a controller
US4516201A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1981 |
| Grant date | May 7, 1985 |
| Priority date | — |
| Expiry date | May 28, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/38
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data communications controller, for use intermediately between a data processor and a data communications link such as a modem driven land line, relieves the data processor of time-consuming supervisory and data preparation tasks, normally associated with the use of a data link, by means of a block loadable transmit queue, an automatic cyclic redundancy check generator, an automatic time fill generator and a parity generator, a block unloadable receive queue, an automatic character translator, an automatic character monitor and a received serial bit queue in conjunction with a byte synchronizing detector, the operation or non-operation of each of the above elements and, if operational, the manner of that operation, being selectable by commands from the data processor, the commands from the data processor being intermingled with but distinguishable from data to be sent over the data link.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.