| 发明名称 |
Method and apparatus for verifying the identity of dynamic memory |
| 摘要 |
The refresh cycle for a bank of dynamic memory is inhibited until a predetermined proportion of the data has corrupted. The pattern of cells in which data has corrupted is characteristic of the individual device and is used to determine whether the individual machine is authorized to run protected software.
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| 申请公布号 |
US4751667(A) |
申请公布日期 |
1988.06.14 |
| 申请号 |
US19860859312 |
申请日期 |
1986.05.05 |
| 申请人 |
NATIONAL RESEARCH DEVELOPMENT CORPORATION |
发明人 |
ROSS, STEPHEN R. |
| 分类号 |
G06F21/00;G06F21/79;(IPC1-7):G01R31/28 |
主分类号 |
G06F21/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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