发明名称 Copy protection method for computer programs using smart card
摘要 The invention of the new copy protection method for computer programs does not prevent the actual copying, but unauthorised use of the copied data. The memory of a mini-processor, which communicates with the computer, contains the necessary code keys and parameters to enable the program to run and be decoded. This microcomputer is associated with every program, e.g. in the form of a smart card (intelligent card in cheque card format). <IMAGE>
申请公布号 DE3601526(A1) 申请公布日期 1987.07.23
申请号 DE19863601526 申请日期 1986.01.20
申请人 KLEINHENN,RENE,DIPL.-BIOL. 发明人 KLEINHENN,RENE,DIPL.-BIOL.;WESCHE,HEIKE
分类号 G06F21/00;G07F7/10;(IPC1-7):G06F12/14 主分类号 G06F21/00
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