Static information storage and retrieval – Magnetic bubbles – Guide structure
Patent
1995-09-28
1998-08-25
Sheikh, Ayaz R.
Static information storage and retrieval
Magnetic bubbles
Guide structure
395427, 365229, G06F 100
Patent
active
057992002
ABSTRACT:
Data in a system having dynamic random access memories (DRAM's) is preserved despite loss of the primary source of electrical power to that system. A Flash RAM and a small auxiliary power source are employed by a controller independent of the system to transfer the DRAM contents to the Flash RAM immediately upon loss of primary system power. The data is also automatically returned to the DRAM after return of primary power with special data signals or sequences being utilized in a multiple controller environment so as to award the complete data recovery function to the first controller to demand attention.
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Brant William A.
Nielson Michael E.
Tang Edde Tin-Shek
EMC Corporation
Hancock, Esq. Earl C.
Kubida, Esq. William J.
Pancholi Jigar
Sheikh Ayaz R.
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