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US 6,274,949 B1Granted
Back-up power accessory for a computer
AssigneeHewlett-Packard Company
InventorsBernard Lioux, Jean-Michel Combe
Life of this patent
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AssigneeHewlett-Packard Company
InventorsBernard Lioux, Jean-Michel Combe
Estimating the term…
A back-up power accessory is described for storing back-up power for a computer and for providing the computer with the 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 including 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; and a 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.
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 computer system with a back-up power accessory, the back-up power accessory comprising:
Dependencies are inferred from the claim text.