公开(公告)号：US5798507A

公开(公告)日：1998-08-25

申请号：US603207

申请日：1996-02-20

申请人： Toshiyuki Kawagishi ,  Youko Kondou

发明人： Toshiyuki Kawagishi ,  Youko Kondou

IPC分类号： G06K17/00 ,  G06K7/00 ,  G06K5/00

CPC分类号： G06K7/10297 ,  G06K7/0013

摘要： A protocol is previously set by a command transmitted from a host device to a reader/writer. When an operation clock supplied from the reader/writer is changed for an IC card to which a plurality of operation clocks can be applied, the host device determines the operation clock based on initial information transmitted from the IC card inserted into the reader/writer, and if it is determined that the operation clock must be changed, it changes the operation clock. If the IC card has a plurality of operation modes, the reader/writer supplies a reset signal to the IC card twice when the reader/writer selects the operation mode of the IC card, and the contents of initial information items obtained at this time are determined t be different form each other after they are compared, the reader/ writer is set into one of the operation modes.

摘要翻译： 先前通过从主机设备发送到读写器的命令来设置协议。 当对于可以应用多个操作时钟的IC卡改变从读写器提供的操作时钟时，主机设备基于从插入到读写器中的IC卡发送的初始信息来确定操作时钟， 并且如果确定操作时钟必须改变，则其改变操作时钟。 如果IC卡具有多种操作模式，则当读卡器选择IC卡的操作模式时，读写器向IC卡提供复位信号两次，此时获得的初始信息项的内容为 在比较之后，确定t彼此不同，将读取器/写入器设置为其中一种操作模式。

公开(公告)号：US5799171A

公开(公告)日：1998-08-25

申请号：US651483

申请日：1996-05-22

申请人： Youko Kondou

发明人： Youko Kondou

IPC分类号： G06K17/00 ,  G06K7/00 ,  H04L29/06 ,  G06F13/00 ,  G06F17/30

CPC分类号： G06K7/10297 ,  G06K7/0008

摘要： Upon activating an inserted IC card, a reader/writer identifies a protocol type of the IC card based on initial response data sent from the IC card. When the protocol type of the IC card is the same as that of the host unit as verified by the identification, control is effected to allow direct data transfer to be made between the host unit and the IC card. When, on the other hand, the protocol type is different from that of the host unit as verified by the identification, control is made so as to allow data transfer to be made between the host unit and the IC card subsequent to protocol conversion. By doing so, one IC card reader/writer can hand a plurality of IC cards different in type from each other.

摘要翻译： 在启动插入的IC卡时，读取器/写入器基于从IC卡发送的初始响应数据来识别IC卡的协议类型。 当IC卡的协议类型与通过识别验证的主机单元的协议类型相同时，进行控制以允许在主机单元和IC卡之间进行直接数据传送。 另一方面，当通过识别验证协议类型与主机单元的协议类型不同时，进行控制以允许在协议转换之后在主机单元和IC卡之间进行数据传输。 通过这样做，一个IC卡读/写器可以将不同类型的多个IC卡交给彼此。