发明名称 |
Appratus for preventing changes of computer configuration data by unauthorized users |
摘要 |
A protection system for a computer is provided. This system is essentially based on the provision of an EEPROM (20) of unstandard access and containing configuration data of the computer as well as a password. At power-on, the contents of the EEPROM except eventually the password, are copied into a CMOS memory (16) which must conventionally be present in the computer. The invention eventually provides additional circuitry for irreversibly cutting the access to the EEPROM and specified peripheric devices.
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申请公布号 |
US5781793(A) |
申请公布日期 |
1998.07.14 |
申请号 |
US19960594007 |
申请日期 |
1996.01.30 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
LARVOIRE, JEAN-FRANCOIS;RIBOLLET, THIERRY;HAYS, BERTRAND |
分类号 |
G06F9/06;G06F1/00;G06F9/445;G06F12/14;G06F21/00;G06F21/22;G06F21/24;(IPC1-7):G06F12/00 |
主分类号 |
G06F9/06 |
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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