Locking memory device

Details Locking memory device Locking memory device

1993-02-11

1995-01-03

Hayes, Gail O.

Boots, shoes, and leggings

235 56, 235386, G06F 1528

Patent

active

053792122

ABSTRACT:
A method and apparatus for locking a memory device to prevent unauthorized data from being written to the memory device is disclosed. In a preferred embodiment an address of a memory device is selected such that when that address is selected, a "1" is written to an auxiliary memory device. This event causes the write-enable of the main memory to be disabled thereby locking the main memory device and preventing subsequent write operations thereto.

REFERENCES:
patent: 4142095 (1979-02-01), Cason et al.
patent: 4982366 (1991-01-01), Takemae

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