Terminal control system
US4734853A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1985 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Dec 2, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/258
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A terminal control system in an online system having a central processing system for executing different application programs, a terminal controller connected to the central processing system, and a plurality of terminals connected to the terminal controller. Each terminal includes at least one logical terminal for performing a plurality of different applications and the terminal controller includes a protocol execution unit for communicating with the central processing system and control tables prepared for respective logical terminals. In the system, if a macroinstruction containing application identification information is received when an application is initiated or switched from the logical terminal, the terminal controller stores the application identification information in one of the control tables associated with the logical terminal, and during execution of an application, the protocol execution unit extracts a protocol most suitable for the application so that the terminal achieves communication with the central processing system in accordance with the extracted protocol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.