发明名称 Hardware revision identification apparatus using an oscillating R-C circuit
摘要 An apparatus for revision identification in an electronic device comprises an electronic oscillating circuit having a selectable oscillating frequency, means for measuring the oscillating frequency of the circuit and means for executing software suitable for operating the current revision of the device in dependence on the measured oscillating frequency of the oscillating circuit. An identification list associates oscillating frequencies to hardware states of the device.
申请公布号 GB2379754(A) 申请公布日期 2003.03.19
申请号 GB20010022176 申请日期 2001.09.13
申请人 * NEC TECHNOLOGIES 发明人 NICHOLAS CRAIG * BOWDLER
分类号 G06F1/22;G06F9/44;G06F15/177;G06F21/00;(IPC1-7):G06F9/44 主分类号 G06F1/22
代理机构 代理人
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