Computer system with unattended on-demand availability

Electrical computers and digital processing systems: support – Computer power control – Power conservation

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Details

713324, 709 3, G06F 132, G06F 900

Patent

active

060651237

ABSTRACT:
A computer system with unattended on-demand availability includes power-saving features which place the system into a Standby mode whenever the system is idle or is not being used. Prior to entering Standby mode, the system sets a hardware timer which indicates when the next scheduled event in the system should be performed. When either the timer expires or another event occurs which requires system operation, the system resumes to the On power state without user intervention. In one embodiment, the system of the present invention allows applications to periodically save their operational states. By saving their operational states, applications are able to guard against power failures and crashes. If a power failure or crash occurs, the system consults restart policies and, if appropriate, automatically re-starts applications to their most recently saved operational states once power is re-stored.

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Supplementary Partial European Search Report for EPO Application No. EP 96 90 8571 dated Jan. 9, 1998.
Patent Abstracts of Japan Application No. 58008162 dated Jan. 21, 1983, entitled "Automatic Operating System for Power Restoration", Inventor Murata Shuichi.

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