Method and system for remote or local access to keyboard control in legacy USB mode with a UHCI USB controller
US7136993B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2003 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Nov 17, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/023
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A remote access module associated with a BIOS of an information handling system having a UHCI-based USB controller allows selection of legacy USB control with a local keyboard or access by a remote keyboard through a remote access bus master adapter. Input from an inactive local or remote keyboard results in automated enabling of the inactive keyboard and disabling of the active keyboard. In one embodiment, remote access to a keyboard port during legacy USB control saves the data associated with the remote access to a memory location accessible to the BIOS and invokes the BIOS to obtain the data. In another embodiment, a legacy USB control option is offered by a display to a user associated with a local keyboard and legacy USB control disabled if the user fails to select local access in a predetermined time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.