Patent
1995-06-06
1998-12-08
Auve, Glenn A.
39518213, 39518222, G06F 130
Patent
active
058482806
ABSTRACT:
An apparatus for providing continuity of operation in system which performs a process having CPU, input/output, main memory and power supply by restoring the system state to the point when the power supply was last turned off or an even earlier time is provided. The apparatus includes a save process start detector for detecting a demand for power supply turn-off. A system state saver outputs information indicative of the system state to an external storage in response to an instruction from the save process start detector. A post save processor turns the power supply off after the information indicative of the system state has been completely output to the external storage by the system stale saver. A restore process starter is activated upon start up of the system after turning on of the power supply. A system state restorer reads the information indicative of the system state, that has been recorded in the external storage by the system state saver in response to instructions from the restore processor starter and then sets the information in a predetermined area to restore the system state to that which existed when the power supply was turned off. After the system state has been restored by the system state restorer a post restore processor continues the control of a process from the step being operated when the process was suspended by the save process start detector.
REFERENCES:
patent: 3757302 (1973-09-01), Pollitt
patent: 3801963 (1974-04-01), Chen
patent: 3959778 (1976-05-01), Brette
patent: 4131942 (1978-12-01), Gillett et al.
patent: 4307455 (1981-12-01), Juhasz et al.
patent: 4458307 (1984-07-01), McAnlis et al.
patent: 4523295 (1985-06-01), Zato
patent: 4611289 (1986-09-01), Coppola
patent: 4646307 (1987-02-01), Nishimura
patent: 4672573 (1987-06-01), Shonaka
patent: 4868832 (1989-09-01), Marrington et al.
patent: 4907150 (1990-03-01), Arroyo et al.
patent: 4965828 (1990-10-01), Ergott, Jr. et al.
patent: 5012406 (1991-04-01), Martin
patent: 5151855 (1992-09-01), Gray et al.
patent: 5163153 (1992-11-01), Cole et al.
patent: 5193176 (1993-03-01), Brandin
patent: 5276865 (1994-01-01), Thorpe
patent: 5276890 (1994-01-01), Arai
patent: 5355490 (1994-10-01), Kou
patent: 5379435 (1995-01-01), Hanaoka
patent: 5386552 (1995-01-01), Garney
patent: 5530877 (1996-06-01), Hanaoka
Office Action from Japanese Patent Office, with English Language Translation.
"Memory Protection system", IBM Technical Disclosure Bulletin, D.C. Shattuck and L. M. Hornung, Nov. 6, 1966.
Auve Glenn A.
Seiko Epson Corporation
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