发明名称 |
BIOS password security using modified scan codes |
摘要 |
A BIOS password security technique includes first logic operable to extract a down scan code from a keyboard input queue, the down scan code having a most significant bit; second logic operable to examine case-related auxiliary information; and third logic operable to set the state of the most significant bit responsive to the case-related auxiliary information, thereby creating a modified scan code.
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申请公布号 |
US7619544(B2) |
申请公布日期 |
2009.11.17 |
申请号 |
US20050261134 |
申请日期 |
2005.10.27 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
PIWONKA MARK A.;DESSELLE BERNARD D.;DELISLE DAVID J. |
分类号 |
H03M11/00 |
主分类号 |
H03M11/00 |
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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