Adaptation of computer to communication operation
US4839802A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1986 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Nov 19, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/124
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A communication adapter for a personal computer or computer terminal is interposed between the computer process unit and its accessory units, such as a keyboard, a printer and a display monitor; the adapter includes a data memory for storing data and actuation signals from the keyboard, from the process unit, and from a communication port on the adapter, together with transmission logic circuits for transmitting data from the memory through the communication port, and accessory logic circuits for supplying data from the memory to the printer and to the monitor. The adapter further includes a microprocessor with a program memory, responsive to signals from the keyboard, that actuates the adapter between a computer mode of operation in which the computer process unit is effectively connected to the accessory units for operation of the computer as if the adapter were not present, and a communication mode in which the adapter and the accessory units function as a telecommunication transceiver independent of the computer process unit. In the computer mode the adapter remains active as an automated telecommunication transceiver, recording incoming data from its communication port in the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.