Portable computer having dedicated register group and peripheral controller bus between system bus and peripheral controller
US5613135A · kind A · utility
50Cited by
13References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1993 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | Aug 16, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4226
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Dedicated registers are arranged in a status LCD control gate array connected to a system bus, and the dedicated registers or register group and a keyboard controller are connected through a keyboard interface bus. The keyboard controller has two ports for communicating with a CPU. The keyboard controller transfers existing commands released to an application program or the like and transmits normal key data through the system bus. The keyboard controller transmits hot key data and transfers a command for realizing any other special function through the keyboard interface bus and the dedicated registers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.