TERMINAL OF RADIO-FREQUENCY TRANSMISSION/RECEPTION BY INDUCTIVE COUPLING
    2.
    发明申请
    TERMINAL OF RADIO-FREQUENCY TRANSMISSION/RECEPTION BY INDUCTIVE COUPLING 审中-公开
    无线电频率传输终端/电感耦合接收

    公开(公告)号:US20090247079A1

    公开(公告)日:2009-10-01

    申请号:US12413222

    申请日:2009-03-27

    IPC分类号: H04B5/00

    摘要: A method and a device of transmission/reception by inductive coupling including circuitry for generating an AQ.C. signal intended to drive an oscillating circuit and circuitry intended to modulate the impedance of the oscillating circuit when data is to be transmitted, the oscillating circuit including an inductive element forming an antenna in parallel with a first capacitive element; and at least one second capacitive element in series with a switch, all in parallel with the first capacitive element and the antenna, the modulating circuitry being connected between the terminals of the antenna and the circuitry for generating the AQ.C. signal being connected to the junction point of the second capacitive element and of the switch.

    摘要翻译: 一种通过电感耦合发送/接收的方法和装置,包括用于产生AQ.C的电路。 用于驱动振荡电路的信号和旨在在要发送数据时调制振荡电路的阻抗的电路,所述振荡电路包括形成与第一电容元件并联的天线的感应元件; 以及与开关串联的至少一个第二电容元件,全部与第一电容元件和天线并联,调制电路连接在天线的端子和用于产生AQ.C的电路之间。 信号连接到第二电容元件和开关的接合点。

    Detection of the presence of a contactless communication element within the range of a terminal
    4.
    发明授权
    Detection of the presence of a contactless communication element within the range of a terminal 有权
    在终端的范围内检测非接触通信元件的存在

    公开(公告)号:US08258970B2

    公开(公告)日:2012-09-04

    申请号:US12508341

    申请日:2009-07-23

    IPC分类号: G08B21/00

    CPC分类号: G06K7/0008 G06K7/10128

    摘要: A method of detection of the presence of a contactless communication element by a terminal emitting an electromagnetic field, in which an oscillating circuit of the terminal is excited at a frequency which is made variable between two values surrounding a nominal tuning frequency of the oscillating circuit; a signal representative of the load of the oscillating circuit being interpreted to detect that a reference voltage has not been exceeded, which indicates the presence of an element in the field. A presence-detection circuit and a corresponding terminal.

    摘要翻译: 通过发射电磁场的端子检测非接触通信元件的存在的方法,其中终端的振荡电路以围绕振荡电路的标称调谐频率的两个值之间变化的频率被激励; 表示振荡电路的负载的信号被解释为检测到没有超过参考电压,其指示在现场中存在元件。 存在检测电路和相应的终端。

    Method of connecting one or more contactless components to a single antenna, and corresponding system
    5.
    发明授权
    Method of connecting one or more contactless components to a single antenna, and corresponding system 有权
    将一个或多个非接触式组件连接到单个天线的方法以及相应的系统

    公开(公告)号:US09407233B2

    公开(公告)日:2016-08-02

    申请号:US13364542

    申请日:2012-02-02

    IPC分类号: H03H7/40

    CPC分类号: H04B5/0031 H03H7/40 H04W76/14

    摘要: A first component (CMP1) is connected to the antenna (ANT) and to an impedance matching circuit (CAI) configurable on command and connected to the antenna, and in the absence of another component (CMP2) connected to the antenna, the impedance matching circuit is placed in a first configuration in which it forms with the first component and the antenna a resonant circuit having a first resonant frequency compatible with a carrier frequency. In the presence of a second component (CMP2) connected to the antenna, the impedance matching circuit is placed in a second configuration in which it forms with the first component, the second component and the antenna a resonant circuit having a second resonant frequency compatible with the carrier frequency.

    摘要翻译: 第一组件(CMP1)连接到天线(ANT),并连接到根据命令配置并连接到天线的阻抗匹配电路(CAI),并且在没有连接到天线的另一组件(CMP2)的情况下,阻抗匹配 电路被放置在其中与第一部件形成的第一配置中,并且天线具有与载波频率兼容的第一谐振频率的谐振电路。 在存在连接到天线的第二组件(CMP2)的情况下,阻抗匹配电路被置于与第一组件,第二组件和天线形成的第二配置中,谐振电路具有与 载波频率。