Apparatus and method for controlling power supply for computer system during service interruption
February 27, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMemory preservation and verification system Power supply system for an electronic apparatus having memory Computer power system Backup power system for dynamic memory Nonvolatile static memory device utilizing separate power supplies Method and apparatus for a backup power controller for volatile random access memory Preservation system for volatile memory with nonvolatile backup memory Solid state disk drive unit having on-board backup non-volatile memory Method and apparatus for fault tolerant fast writes through buffer dumping Semiconductor data storage device with means for protecting data upon external power supply connection and disconnection InventorsApplicationNo. 607612 filed on 02/27/1996US Classes:713/300, COMPUTER POWER CONTROL713/310, By external command714/14Of power supplyExaminersPrimary: Ray, Gopal C.Attorney, Agent or FirmForeign Patent References
International ClassG06F 001/30Foreign Application Priority Data1995-03-02 JPAbstractUpon detection of service interruption, the power supply unit gives a notice of the occurrence of service interruption to the processor unit to instruct save operation from the memory unit to the storage device, then instructs power disconnection to the second power supply section to discontinue supply of power, and continues supply of power from the power supply section to the memory unit and the storage device for save operation. The power supply control unit gives an advance notice of power disconnection to the memory unit prior to the instruction of power disconnection to the second power supply section to start save operation from the memory unit to the storage device, and upon the lapse of a prescribed period of time from the advance notice, instructs power disconnection of the second power supply section. Upon receipt of an end notice of save operation from the memory unit, the power supply control unit instructs the first power supply section to disconnect to discontinue supply of power. | |
