Method and device for reserving wake-up functions of computer system after power loss
AssigneeWinbond Electronics Corp.
InventorsTseng-Wen Chen, Cheng-Chih Wang
Life of this patent
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Abstract
A solution for maintaining the wake-up functions of a computer after a power loss is provided. To reset parameters relating to the wake-up functions, the computer is automatically turned on when the power is supplied again. Then, the computer is forced to be power-off by an output signal to switch the computer system to a state capable of executing the wake-up functions.
Claims20
A method for maintaining a wake-up function of a computer having a chipset in a waiting state capable of executing said wake-up function after a power loss, said method comprising steps of:
- automatically turning on said computer when power is supplied again for resetting said chipset;
- and
- providing an override power-off signal for said computer to switch said computer to said waiting state, wherein said computer is compatible to an advanced configuration and power interface (ACPI) specification.
A device for maintaining a wake-up function of a computer having a chipset in a waiting state after a power loss, comprising:
- a power-detecting device for detecting said power loss and generating a first signal when power is supplied again;
- and
- a power-control device for turning on said computer according to said first signal to reset said chipset, and switching said computer to said waiting state, wherein said power-control device switches said computer to said waiting state according to a second signal outputted by said chipset, and said second signal is a SUSC signal.
A device for maintaining a wake-up function of a computer having a chipset in a waiting state after a power loss, comprising:
- a power-detecting device for detecting said power loss and generating a first signal when power is supplied again;
- a power-control device for turning on said computer according to said first signal to reset said chipset, and switching said computer to said waiting state;
- and
- a panel switching control device electrically connected between said power-control device and said chipset.
Dependencies are inferred from the claim text.