A processor-based system, including systems without keyboards, may receive user inputs prior to booting. This may done using the graphics controller to generate a window which allows the user to input information. The system firmware may then compare any user inputs, such as passwords, and may determine...http://www.google.fr/patents/US7849301?utm_source=gb-gplus-shareBrevet US7849301 - Providing a user input interface prior to initiation of an operating system
Providing a user input interface prior to initiation of an operating system