Method and device for modulating an active load

    公开(公告)号:US10560156B2

    公开(公告)日:2020-02-11

    申请号:US15947384

    申请日:2018-04-06

    申请人: INSIDE SECURE

    摘要: In a general aspect, a method can include producing, by an inductive antenna circuit, a first periodic signal that is based on an alternating external magnetic field; producing, by an oscillator circuit, a second periodic signal that is based on the first periodic signal; and transmitting, in correspondence with a data-carrying modulation signal, a sequence of data bits. The transmitting can include sequentially and repetitively: applying, with the oscillator circuit operating in a free oscillation mode, the second periodic signal to the inductive antenna circuit; and inhibiting, with the oscillator circuit operating in a synchronous oscillation mode, application of the second periodic signal to the inductive antenna circuit. The synchronous oscillation mode of the oscillator circuit can cause the second periodic signal to be synchronized to the first periodic signal.

    Electronic device for transmitting data by inductive coupling and intracorporeal current

    公开(公告)号:US09871563B2

    公开(公告)日:2018-01-16

    申请号:US14900587

    申请日:2014-06-10

    申请人: INSIDE SECURE

    IPC分类号: H04B5/00 H04B13/00 H02J50/10

    摘要: In a general aspect, an electronic device can include a device configured to transmit data by intracorporeal current. The device configured to transmit data by intracorporeal current can include a first electrode configured to be capacitively coupled with a body of a user or capacitively coupled in an intracorporeal current conduction path of the electronic device. The electronic device can further include a circuit configured to electrically bias the first electrode. The circuit can include an electric coil arranged near the first electrode. The electric coil can be configured to, in response to an alternating-current (AC) signal, generate an alternating magnetic field having field lines incident on the first electrode. The field lines incident on the first electrode can induce a current in the first electrode, where the current induces an electric field that generates an intracorporeal current.

    NFC antenna with interleaved coils
    3.
    发明授权
    NFC antenna with interleaved coils 有权
    具有交错线圈的NFC天线

    公开(公告)号:US09236658B2

    公开(公告)日:2016-01-12

    申请号:US13743769

    申请日:2013-01-17

    申请人: INSIDE Secure

    发明人: Bruno Charrat

    IPC分类号: H01Q7/00 H04B5/00 H01Q1/22

    摘要: An antenna circuit for near-field communications includes a planar active winding, connected between a first and a second access terminal; an auxiliary winding coplanar with the active winding and connected by a first end to the first access terminal; and a tuning capacitor connected to the second end of the auxiliary winding. The turns of the active and auxiliary windings are interleaved.

    摘要翻译: 用于近场通信的天线电路包括连接在第一和第二接入终端之间的平面有源绕组; 辅助绕组与有源绕组共面并且由第一端连接到第一接入终端; 以及连接到辅助绕组的第二端的调谐电容器。 有源和辅助绕组的匝交错。

    Method and device for modulating an active load

    公开(公告)号:US10305546B2

    公开(公告)日:2019-05-28

    申请号:US15144034

    申请日:2016-05-02

    申请人: INSIDE SECURE

    摘要: A method for sending data by inductive coupling includes: extracting an antenna signal from an antenna circuit, extracting from the antenna signal a first periodic signal, producing a second periodic signal by way of a synchronous oscillator, placing the oscillator in a free oscillation mode and applying to the antenna circuit the second periodic signal, modifying the impedance of the antenna circuit, restoring the amplitude of the antenna signal, then resynchronizing the oscillator on the first periodic signal.

    Communication method between a dual interface NFC card inserted into an NFC terminal, and an NFC device

    公开(公告)号:US09793961B2

    公开(公告)日:2017-10-17

    申请号:US15222884

    申请日:2016-07-28

    申请人: INSIDE SECURE

    发明人: Bruno Charrat

    IPC分类号: H04B5/00 G06K19/077 H04W4/00

    摘要: In a general aspect, a method for transmitting data between an NFC card and an external NFC device via a selected interface (e.g., contact or contactless), and further via a contactless interface of the NFC module when the contact interface of the NFC card is selected can include using an NFC card that includes an antenna circuit having an antenna coil with a magnetic axis and an electrically conductive screen extending near the antenna coil. The magnetic axis of the antenna coil can be substantially parallel to a plane defined by the NFC card and not cross the conductive screen. The contactless interface of the NFC card, when selected by the NFC card, can emit data by emitting bursts of magnetic field from the antenna coil, so as to compensate for effects of the conductive screen on a maximum distance for transmitting data by load modulation.

    Antenna system for contactless microcircuit
    6.
    发明授权
    Antenna system for contactless microcircuit 有权
    用于非接触式微电路的天线系统

    公开(公告)号:US09311591B2

    公开(公告)日:2016-04-12

    申请号:US14412572

    申请日:2013-06-26

    申请人: INSIDE SECURE

    IPC分类号: G06K5/00 G06K19/077 H01Q7/00

    摘要: The present invention relates to a method for manufacturing a microcircuit card, including steps of: forming a first antenna coil in a card, the first antenna coil having a part following the edge of the card, forming a module having a microcircuit and a second antenna coil around and connected to the microcircuit, and implanting the module into the card at a precise position in relation to the edge of the card, the first antenna coil being coupled by induction to the second antenna coil, the first antenna coil being pre-formed in such a way that only one part of the second antenna coil is at a distance from the first antenna coil of less than 5% of the width of the second antenna coil.

    摘要翻译: 微电路卡的制造方法技术领域本发明涉及一种微电路卡的制造方法,其特征在于,包括以下步骤:在卡中形成第一天线线圈,所述第一天线线圈具有跟随所述卡的边缘的一部分,形成具有微电路的模块和第二天线 围绕并连接到微电路,并且将模块以相对于卡的边缘的精确位置注入到卡中,第一天线线圈通过感应耦合到第二天线线圈,第一天线线圈被预先形成 使得第二天线线圈的仅一部分距第一天线线圈的距离小于第二天线线圈的宽度的5%。

    ANTENNA SYSTEM FOR CONTACTLESS MICROCIRCUIT
    7.
    发明申请
    ANTENNA SYSTEM FOR CONTACTLESS MICROCIRCUIT 有权
    无接触式微型天线系统

    公开(公告)号:US20150154491A1

    公开(公告)日:2015-06-04

    申请号:US14412572

    申请日:2013-06-26

    申请人: INSIDE SECURE

    IPC分类号: G06K19/077 H01Q7/00

    摘要: The present invention relates to a method for manufacturing a microcircuit card, including steps of: forming a first antenna coil in a card, the first antenna coil having a part following the edge of the card, forming a module having a microcircuit and a second antenna coil around and connected to the microcircuit, and implanting the module into the card at a precise position in relation to the edge of the card, the first antenna coil being coupled by induction to the second antenna coil, the first antenna coil being pre-formed in such a way that only one part of the second antenna coil is at a distance from the first antenna coil of less than 5% of the width of the second antenna coil.

    摘要翻译: 微电路卡的制造方法技术领域本发明涉及一种微电路卡的制造方法,其特征在于,包括以下步骤:在卡中形成第一天线线圈,所述第一天线线圈具有跟随所述卡的边缘的一部分,形成具有微电路的模块和第二天线 围绕并连接到微电路,并且将模块以相对于卡的边缘的精确位置注入到卡中,第一天线线圈通过感应耦合到第二天线线圈,第一天线线圈被预先形成 使得第二天线线圈的仅一部分距第一天线线圈的距离小于第二天线线圈的宽度的5%。

    Portable device including an electrode for transmitting data by intracorporeal current

    公开(公告)号:US09838088B2

    公开(公告)日:2017-12-05

    申请号:US14900585

    申请日:2014-06-10

    申请人: INSIDE SECURE

    IPC分类号: H04B5/00 H04B13/00 H02J50/10

    摘要: In a general aspect, a portable electronic device can include a digital display including a first electrically conductive plane. The first electrically conductive plane can be configured to neutralize electromagnetic radiation produced by the digital display. The portable electronic device can also include a data transmission device configured to transmit data by intracorporeal current. The data transmission device can include a first electrode that is configured to be capacitively coupled with a body of a user and a second electrode that includes the first electrically conductive plane. The first electrically conductive plane can be electrically coupled with an electrical ground of the data transmission device. The portable electronic device can further include a printed circuit including a second electrically conductive plane. The second electrically conductive plane can be included in the second electrode of the data transmission device.

    COMMUNICATION METHOD BETWEEN A DUAL INTERFACE NFC CARD INSERTED INTO AN NFC TERMINAL, AND AN NFC DEVICE
    9.
    发明申请
    COMMUNICATION METHOD BETWEEN A DUAL INTERFACE NFC CARD INSERTED INTO AN NFC TERMINAL, AND AN NFC DEVICE 有权
    一个插入NFC终端的双接口NFC卡和NFC设备之间的通信方法

    公开(公告)号:US20140378051A1

    公开(公告)日:2014-12-25

    申请号:US14370653

    申请日:2012-11-29

    申请人: INSIDE SECURE

    发明人: Bruno Charrat

    IPC分类号: H04B5/00

    摘要: The present invention relates to a contactless communication method between an NFC card with a contact and contactless dual interface, installed in a communication terminal, and an external NFC device, the terminal including an NFC module coupled to the contact interface of the card and including a contactless communication interface, the method including the steps of: selecting one or the other of the contact and contactless interfaces of the card, transmitting signals between the card and the NFC device through the selected interface, and if the contact interface of the card is selected, through the contactless interface of the NFC module, and detecting by the card the presence of the NFC module connected to its contact interface, the selection of one or the other of the contact and contactless interfaces of the card being performed by the card depending on the result of the detection of the NFC module presence.

    摘要翻译: 本发明涉及一种安装在通信终端中的具有接触和非接触式双接口的NFC卡和外部NFC设备之间的非接触式通信方法,该终端包括耦合到卡的接触接口的NFC模块, 非接触通信接口,该方法包括以下步骤:选择卡的接触和非接触接口中的一个或另一个,通过所选择的接口在卡和NFC设备之间传输信号,并且如果选择了卡的接口接口 通过NFC模块的非接触式接口,并且通过卡检测连接到其接触接口的NFC模块的存在,由卡执行的卡的接触和非接触接口中的一个或另一个的选择取决于 检测NFC模块存在的结果。

    Method and device for modulating an active load

    公开(公告)号:US09941934B2

    公开(公告)日:2018-04-10

    申请号:US15433884

    申请日:2017-02-15

    申请人: INSIDE SECURE

    IPC分类号: H04B5/00 H04L7/08

    摘要: In a general aspect, a method can include producing, by an inductive antenna circuit, a first periodic signal that is based on an alternating external magnetic field; producing, by an oscillator circuit, a second periodic signal that is based on the first periodic signal; and transmitting, in correspondence with a data-carrying modulation signal, a sequence of data bits. The transmitting can include sequentially and repetitively: applying, with the oscillator circuit operating in a free oscillation mode, the second periodic signal to the inductive antenna circuit; and inhibiting, with the oscillator circuit operating in a synchronous oscillation mode, application of the second periodic signal to the inductive antenna circuit. The synchronous oscillation mode of the oscillator circuit can cause the second periodic signal to be synchronized to the first periodic signal.