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公开(公告)号：US06637664B1
公开(公告)日：2003-10-28
申请号：US10018802
申请日：2001-12-21
IPC分类号： G06K1906
CPC分类号： G06K19/07769 , G06K19/07 , G06K19/0701 , G06K19/0723 , G06K19/077 , G06K19/07749 , G06K19/07779
摘要： For obtaining an IC card low in both power consumption and manufacturing cost, operating conditions in case of going through a contact point, which conditions are associated with supply voltage and signal level in an internal circuit, are to lie within operating conditions in case of going through an antenna. To this end, an IC chip of the IC card is provided with a voltage conversion circuit for lowering a supply voltage supplied through the contact point and a level conversion circuit for lowering the level of a signal fed from the contact point to the internal circuit and raising the level of a signal fed from the internal circuit to the contact point.
摘要翻译： 为了获得低功耗和制造成本的IC卡，在通过接触点的情况下的操作条件，哪些条件与内部电路中的电源电压和信号电平相关联，在进行的情况下处于工作条件下 通过天线。 为此，IC卡的IC芯片设置有用于降低通过接触点提供的电源电压的电压转换电路和用于降低从接触点馈送到内部电路的信号的电平的电平转换电路，以及 提高从内部电路馈送到接触点的信号的电平。
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公开(公告)号：US06955300B1
公开(公告)日：2005-10-18
申请号：US10643947
申请日：2003-08-20
CPC分类号： G06K19/07769 , G06K19/07 , G06K19/0707 , G06K19/0712 , G06K19/0715 , G06K19/0723
摘要： For obtaining an IC card low in both power consumption and manufacturing cost, operating conditions in case of going through a contact point, which conditions are associated with supply voltage and signal level in an internal circuit, are to lie within operating conditions in case of going through an antenna. To this end, an IC chip of the IC card is provided with a voltage conversion circuit for lowering a supply voltage supplied through the contact point and a level conversion circuit for lowering the level of a signal fed from the contact point to the internal circuit and raising the level of a signal fed from the internal circuit to the contact point.
摘要翻译： 为了获得低功耗和制造成本的IC卡，在通过接触点的情况下的操作条件，哪些条件与内部电路中的电源电压和信号电平相关联，在进行的情况下处于工作条件下 通过天线。 为此，IC卡的IC芯片设置有用于降低通过接触点提供的电源电压的电压转换电路和用于降低从接触点馈送到内部电路的信号的电平的电平转换电路，以及 提高从内部电路馈送到接触点的信号的电平。
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公开(公告)号：US06585166B1
公开(公告)日：2003-07-01
申请号：US10018803
申请日：2001-12-21
IPC分类号： G06K1906
CPC分类号： G06K19/07769 , G06K19/07 , G06K19/0701 , G06K19/0723
摘要： An IC card capable of preventing the occurrence of an abnormal state of coupling and thereby preventing malfunction of IC is provided. The IC card is provided with a coupling detecting means for detecting a contact coupling and a non-contact coupling and is also provided with a communication cut-off means which, when there are supplied electric power and a signal for inducing the other coupling during communication by one coupling, cuts off communication so that communication is performed by neither of the couplings.
摘要翻译： 提供能够防止发生异常耦合状态并因此防止IC故障的IC卡。 该IC卡设置有用于检测接触耦合和非接触耦合的耦合检测装置，并且还设置有通信截止装置，当提供电力时，提供电力和用于在通信期间诱导另一耦合的信号 通过一个耦合，切断通信，使得通过两个耦合都不进行通信。
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公开(公告)号：US06173900B1
公开(公告)日：2001-01-16
申请号：US09427596
申请日：1999-10-27
申请人： Hiroshi Yoshigi , Takehiro Ookawa , Ryouzou Yoshino , Kimiaki Andou , Tadashi Oonishi , Koji Tsuru , Shin Kanno , Shigeru Date , Hisanobu Dobashi , Masahiro Sugiura
发明人： Hiroshi Yoshigi , Takehiro Ookawa , Ryouzou Yoshino , Kimiaki Andou , Tadashi Oonishi , Koji Tsuru , Shin Kanno , Shigeru Date , Hisanobu Dobashi , Masahiro Sugiura
IPC分类号： G06V19067
CPC分类号： G06K19/07779 , G06K19/07749 , G06K19/07796
摘要： An object of the present invention is able to provide an IC card in which for example, even if a state should occur in which a plurality of IC cards are piled up in any direction for use, a received signal is not greatly lowered but a normal usage pattern is secured. When the IC cards are piled up with the contours united, a projection drawing of an antenna of one IC card to an antenna surface of the other IC card has an area not overlapped at least 15% or more of an area having an antenna to the other antenna surface on the projection surface and the IC card can work.
摘要翻译： 本发明的目的是提供一种IC卡，其中例如即使在任何方向上堆积多个IC卡的情况下，接收信号也不会大大降低，而是正常 使用模式得到保护。当IC卡堆叠在一起时，将IC卡的天线投影到另一IC卡的天线表面，其面积不重叠至少15％以上的区域 具有到投影表面上的另一个天线表面的天线，并且IC卡可以工作。
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