Memory device

Details Memory device Memory device

2006-01-17

2006-01-17

Phung, Anh (Department: 2824)

Static information storage and retrieval

Read/write circuit

Having particular data buffer or latch

C365S189080

Reexamination Certificate

active

06987697

ABSTRACT:
According to the present invention, a state holding unit holds values indicating which process has written which data into a memory and a mask mechanism applies an operation to data stored in memory according to whether data in memory which a process is attempting to read is the data written by that process, thereby improving the security among processes.

REFERENCES:
patent: 5073872 (1991-12-01), Masuda et al.
patent: 6026083 (2000-02-01), Albrow et al.
patent: 6493272 (2002-12-01), Fujii et al.
patent: 8-503093 (1996-04-01), None
patent: WO 94/10687 (1994-05-01), None

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