公开(公告)号：US5264689A

公开(公告)日：1993-11-23

申请号：US817869

申请日：1992-01-07

申请人： Philippe Maes ,  Eric Depret ,  Philippe Hiolle

发明人： Philippe Maes ,  Eric Depret ,  Philippe Hiolle

IPC分类号： G07F7/02 ,  G07F7/08 ,  G06K5/00

CPC分类号： G07F7/0866 ,  G06Q20/3433 ,  G07F7/02

摘要： The disclosure concerns memory cards and, more particularly, cards that are used as means of prepayment in installations for the dispensing of products and services. It is proposed to make the memory rechargeable by means of a credit counter, incrementable from outside the card, and a comparator which compares the content of this counter with that of a page counter. The page counter records the number of pages of P accounting units already used up. A no more credit signal is emitted on an external terminal when the content of the page counter reaches the content of the credit counter. A security system against the fraudulent recharging of the card is set up by an algorithm bringing into play the content of the credit counter and an identification number contained in the card.

摘要翻译： 本公开涉及存储卡，更具体地，涉及在用于分发产品和服务的安装中用作预付款的手段的卡。 建议通过信用计数器使存储器可再充电，可从卡外部递增，以及将该计数器的内容与页计数器的内容进行比较的比较器。 页计数器记录已经使用的P计费单元的页数。 当页计数器的内容达到信用计数器的内容时​​，在外部终端上不再发送信用信号。 针对卡的欺诈性再充电的安全系统由引入信用计数器的内容的算法和卡中包含的识别号码来建立。

公开(公告)号：US5060261A

公开(公告)日：1991-10-22

申请号：US551550

申请日：1990-07-11

申请人： Jean-Pierre Avenier ,  Gilles Lisimaque ,  Philippe Maes ,  Jacek Kowalski

发明人： Jean-Pierre Avenier ,  Gilles Lisimaque ,  Philippe Maes ,  Jacek Kowalski

IPC分类号： B42D15/10 ,  G06F12/14 ,  G06F21/06 ,  G06K19/073 ,  G06K19/077 ,  G06K19/10

CPC分类号： H01L23/576 ,  G06K19/073 ,  G06K19/07372 ,  H01L2924/0002 ,  Y10S206/806 ,  Y10S257/922

摘要： The microcircuit card is such that at least one strain-indicating sensor is placed on the microcircuit, in a known state of strain, and is maintained in this state by a protection layer deposited on the microcircuit for as long as this layer is not affected. The microcircuit has means for measuring an electrical value that is characteristic of the strain, and a logic circuit connected to the measuring means to detect the changes in the condition of strain indicating an intrusion into the card.

摘要翻译： 微电路卡使得至少一个应变指示传感器以已知的应变状态放置在微电路上，并且通过沉积在微电路上的保护层保持在该状态，只要该层不受影响。 微电路具有用于测量作为应变特性的电气值的装置，以及连接到测量装置的逻辑电路，以检测指示入侵卡的应变条件的变化。