Excavating
Patent
1989-10-26
1992-05-05
Baker, Stephen M.
Excavating
371 164, G11C 2900, G11B 2018
Patent
active
051114577
ABSTRACT:
The method of verifying the integrity of the non-volatile memory device contents in an image processing apparatus having image processing for forming an image, a controller for directing the operation of the image processing, a mass memory device and a non-volatile memory device for dynamically storing critical machine data comprising the steps of performing a non-volatile memory check including the steps of verifying selected patterns and verifying a checksum related to the non-volatile memory, determining a non-volatile memory fault during the process of performing the non-volatile memory check, retrieving backup critical machine data from the mass memory device, storing the critical machine data into the non-volatile memory device, and providing dynamically updated data backup of the non-volatile memory image to the mass memory device.
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patent: 4458349 (1984-07-01), Aichelmann, Jr. et al.
patent: 4584663 (1986-04-01), Tanikawa
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"Data Protection and Management Method for Non-Volatile Memory", IBM Technical Disclosure Bulletin, vol. 31, No. 4, Sep. 1988, pp. 459-461.
Platteter Dale T.
Rabjohns Douglas T.
VanDuyn Robert M.
Baker Stephen M.
Chapuran Ronald F.
Xerox Corporation
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