Integral portable computer input and output switching
US6460109B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1999 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Dec 16, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0227
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus which allows a user to use any desired combination of keyboard, input device, and display to operate and control either of two computer systems. The switching apparatus is in a computer system comprising a display adapter operable to output a display signal, an input adapter operable to receive a keyboard signal and a pointing device signal, a display device operable to receive a display signal, a keyboard operable to output a keyboard signal, and a pointing device operable to output a pointing device signal. The switching apparatus comprises a display switching circuit connected to the display signal and connectable to an external display signal, operable to select between the display signal and the external display signal and output the selected signal to the display device or to an external display device; a keyboard switching circuit connected to the keyboard signal and connectable to an external keyboard signal, operable to select between the keyboard signal and the external keyboard signal and output the selected signal to the input adapter or to an external computer system; and a pointing device switching circuit connected to the pointing device signal and conne…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.