Patent ID: 6274949
Filing Date: 2001-08-14
Classification: G06F

Abstract:
A back-up power accessory for storing back-up power for a computer and for providing the computer with said back-up power for a limited period of time upon failure of an AC power supply to the computer, the accessory being electrically connectable to the computer and comprising:a first detection mechanism for detecting AC power failure of said computer;a second detection mechanism for receiving a suspend signal from the computer which signal indicates that the computer is in a power consuming sleep state;a third detection mechanism for receiving an on/off signal from the computer which on/off signal indicates that the computer requires full power; anda shutdown mechanism that cooperates with said first, second and third detection mechanisms upon AC power failure and detection of either the suspend signal or the on/off signal to send a fail signal to the computer for causing the computer to perform a safe shut-down.