Method and apparatus for settlement of accounts by IC cards
    1.
    发明授权
    Method and apparatus for settlement of accounts by IC cards 失效
    通过IC卡结算账户的方法和装置

    公开(公告)号:US5446796A

    公开(公告)日:1995-08-29

    申请号:US331735

    申请日:1994-10-31

    摘要: An IC card has a card information memory area wherein there are written a master public key nA, card secret keys pU and qU, a card public key nU, a card identification number IDU, and a first master digital signature SA1 for information including the card identification number. An IC card terminal has terminal information memory area wherein there are written a master public key nA, terminal secret keys pT and qT, a terminal public key nT, a terminal identification number IDT, and a second master digital signature SA2 for information including the terminal identification number IDT. When inserted into the IC card terminal, the IC card sends thereto the data nU, IDU, and SA1. The IC card terminal verifies the digital signature SA1 by the master public key nA and, if it is valid, transmits the data nT, IDT and SA2 to the IC card. The IC card verifies the digital signature SA2 by the master public key nA and, if it is valid, transmits information corresponding to the current remainder value V to the IC card terminal. The IC card terminal makes a check to see if the received information corresponding to the remainder value V is appropriate, and if so, becomes enabled for providing a service.

    摘要翻译: IC卡具有卡信息存储区域,其中写有主公开密钥nA,卡秘密密钥pU和qU,卡公开密钥nU,卡标识号IDU和用于包括卡的信息的第一主数字签名SA1 识别号码。 IC卡终端具有终端信息存储区域,其中写有主公开密钥nA,终端密钥pT和qT,终端公钥nT,终端标识号IDT和第二主数字签名SA2,用于包括终端的信息 识别号码IDT。 当插入IC卡终端时,IC卡向其发送数据nU,IDU和SA1。 IC卡终端通过主公开密钥nA验证数字签名SA1,如果有效,则将数据nT,IDT,SA2发送给IC卡。 IC卡通过主公开密钥nA验证数字签名SA2,如果有效,则向IC卡终端发送与当前剩余值V相对应的信息。 IC卡终端进行检查以查看与余数值V对应的接收信息是否合适,如果是,则能够提供服务。

    Magnetic card
    2.
    发明授权
    Magnetic card 失效
    磁卡

    公开(公告)号:US4977040A

    公开(公告)日:1990-12-11

    申请号:US213469

    申请日:1988-06-29

    摘要: In the subject magnetic card, first magnetic recording layer 2 is laid over substrate 1. First magnetic recording layer 2 has a coercive force that enables magnetic recording of data. Second magnetic recording layer 4, having a coercive force smaller than that of first magnetic recording layer 2, is laid over first magnetic recording layer 2, with shielding intermediate layer 3 interposed therebetween. Magnetic shielding layer 5 is provided as an uppermost magnetic layer.

    摘要翻译: 在目标磁卡中,将第一磁记录层2放置在基板1上。第一磁记录层2具有能够磁记录数据的矫顽力。 具有小于第一磁记录层2的矫顽力的第二磁记录层4放置在第一磁记录层2上,其间插入屏蔽中间层3。 提供磁屏蔽层5作为最上层的磁性层。

    Electromagnetic coordinate selection device
    3.
    发明授权
    Electromagnetic coordinate selection device 失效
    电磁坐标选择装置

    公开(公告)号:US3942142A

    公开(公告)日:1976-03-02

    申请号:US527847

    申请日:1974-11-27

    IPC分类号: H01H67/26 H01H67/14

    CPC分类号: H01H67/26

    摘要: An electromagnetic coordinate selection device comprising a plurality of electromagnetically operated cross point switches arranged in a matrix form and a plurality of magnetic cores disposed at points corresponding to said cross point switches for operation thereof, with any desired cross point switch closed only when the first and second coils wound about the magnetic cores are additively excited wherein the magnetic cores are each of the composite type to stabilize the operation of the cross point switches and the cross point switches are collectively sealed in a single container or in groups in a plurality of vessels provided in a number equal to or smaller than the number of the conductors arranged in the direction of the row or column of said matrix.

    摘要翻译: 一种电磁坐标选择装置,包括以矩阵形式布置的多个电磁操作的交叉点开关,以及设置在与所述交叉点开关对应的点处的多个磁芯,用于操作,任何所需的交叉点开关仅在第一和 卷绕在磁芯上的第二线圈被加法激励,其中磁芯是复合型,以稳定交叉点开关的操作,并且交叉点开关被集体地密封在单个容器中或者组装在多个容器中 其数量等于或小于在所述矩阵的行或列的方向上布置的导体的数量。