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    RF device and method with improved active load modulation capability
    2.
    发明授权
    RF device and method with improved active load modulation capability 有权
    RF器件和具有改进的有源负载调制能力的方法

    公开(公告)号：US09401739B2

    公开(公告)日：2016-07-26

    申请号：US14321433

    申请日：2014-07-01

    Applicant: NXP B.V.

    Inventor： Michael Pieber ,  Erich Merlin ,  Stefan Mendel

    IPC: H04B1/44 ,  H04B5/00 ,  H04B5/02

    CPC classification number: H04B1/44 ,  H04B5/0075 ,  H04B5/02

    Abstract: There is described an RF bidirectional communication device utilizing active load modulation, the device comprising (a) a resonance circuit including an antenna (326), and (b) a control unit (322) for controlling communication of the device, including switching between a transmission mode and a receiving mode, wherein the control unit is adapted to (c) modify a configuration of the resonance circuit such that the resonance circuit has a first resonance frequency (f0) when the device is in the transmission mode and a second resonance frequency (f0+Δf) when the device is in the receiving mode, and (d) modify the configuration of the resonance circuit such that a Q-factor of the resonance circuit is periodically decreased while the device is in the transmission mode. There is also described a corresponding method and a system comprising a RF device and a reader/writer device. Furthermore, there is described a computer program and a computer program product.

    Abstract translation: 描述了利用有源负载调制的RF双向通信装置，该装置包括（a）包括天线的谐振电路（326）和（b）用于控制装置的通信的控制单元（322），包括在 传输模式和接收模式，其中所述控制单元适于（c）修改所述谐振电路的配置，使得当所述设备处于所述传输模式时所述谐振电路具有第一谐振频率（f0），并且所述谐振电路具有第二谐振频率 （f0 +Δf），以及（d）修改谐振电路的结构，使得谐振电路的Q因子在器件处于传输模式时周期性地减小。 还描述了包括RF设备和读取器/写入器设备的相应方法和系统。 此外，描述了计算机程序和计算机程序产品。

    Contactless communication device with receiver input voltage stabilization
    3.
    发明授权
    Contactless communication device with receiver input voltage stabilization 有权

    公开(公告)号：US10044389B2

    公开(公告)日：2018-08-07

    申请号：US14684318

    申请日：2015-04-10

    Applicant: NXP B.V.

    Inventor： Erich Merlin ,  Helmut Kranabenter ,  Stefan Mendel ,  Michael Pieber

    IPC: H04B1/00 ,  H04B1/12 ,  G06K7/00 ,  H04B1/10 ,  H04W72/04

    CPC classification number: H04B1/123 ,  G06K7/0008 ,  H04B1/1036 ,  H04W72/0446

    Abstract: There is described a contactless communication device. The device comprises (a) a receiver unit (110, 610) having an antenna input (RXn, Vmid, RXp) for connecting to an antenna, the receiver unit (110, 610) being adapted to couple with a transmitting device and to receive an RF signal transmitted by the transmitting device, the receiver unit (110, 610) being further adapted to determine a point of time relating to a position of data within the RF signal, (b) a comparator (120) adapted to generate a comparator output signal (agc_comp) which is indicative of a relation between a voltage at the antenna input (RXn, Vmid, RXp) of the receiver unit (110, 610) and a reference voltage (Vref), and (c) a voltage regulation circuit coupled to the comparator (120) and to the antenna input (RXn, Vmid, RXp) of the receiver unit (110, 610), the voltage regulation circuit being adapted to repetitively regulate the voltage at the antenna input (RXn, Vmid, RXp) based on the comparator output signal (agc_comp). The voltage regulation circuit is adapted to separate each repetitive regulation of the voltage at the antenna input (RXn, Vmid, RXp) by a first time constant prior to the point of time determined by the receiver unit (110, 610) and by a second time constant after the point of time determined by the receiver unit (110, 610), wherein the first time constant is smaller than the second time constant. There is also described a method, a computer program and a computer program product.

    CONTACTLESS COMMUNICATION DEVICE WITH RECEIVER INPUT VOLTAGE STABILIZATION
    7.
    发明申请
    CONTACTLESS COMMUNICATION DEVICE WITH RECEIVER INPUT VOLTAGE STABILIZATION 审中-公开
    具有接收器输入电压稳定的无连接通信设备

    公开(公告)号：US20150295608A1

    公开(公告)日：2015-10-15

    申请号：US14684318

    申请日：2015-04-10

    Applicant: NXP B.V.

    Inventor： Erich Merlin ,  Helmut Kranabenter ,  Stefan Mendel ,  Michael Pieber

    IPC: H04B1/12 ,  H04W72/04 ,  H04B1/10

    CPC classification number: H04B1/123 ,  G06K7/0008 ,  H04B1/1036 ,  H04W72/0446

    Abstract: There is described a contactless communication device. The device comprises (a) a receiver unit (110, 610) having an antenna input (RXn, Vmid, RXp) for connecting to an antenna, the receiver unit (110, 610) being adapted to couple with a transmitting device and to receive an RF signal transmitted by the transmitting device, the receiver unit (110, 610) being further adapted to determine a point of time relating to a position of data within the RF signal, (b) a comparator (120) adapted to generate a comparator output signal (agc_comp) which is indicative of a relation between a voltage at the antenna input (RXn, Vmid, RXp) of the receiver unit (110, 610) and a reference voltage (Vref), and (c) a voltage regulation circuit coupled to the comparator (120) and to the antenna input (RXn, Vmid, RXp) of the receiver unit (110, 610), the voltage regulation circuit being adapted to repetitively regulate the voltage at the antenna input (RXn, Vmid, RXp) based on the comparator output signal (agc_comp). The voltage regulation circuit is adapted to separate each repetitive regulation of the voltage at the antenna input (RXn, Vmid, RXp) by a first time constant prior to the point of time determined by the receiver unit (110, 610) and by a second time constant after the point of time determined by the receiver unit (110, 610), wherein the first time constant is smaller than the second time constant. There is also described a method, a computer program and a computer program product.

    Abstract translation: 描述了一种非接触式通信设备。 所述设备包括（a）具有用于连接到天线的天线输入（RXn，Vmid，RXp）的接收器单元（110,610），所述接收器单元（110,610）适于与发射设备耦合并且接收 由发射设备发射的RF信号，接收机单元（110,610）还适于确定与RF信号内的数据位置有关的时间点，（b）比较器（120），适于产生比较器 输出信号（agc_comp），其指示接收器单元（110,610）的天线输入端（RXn，Vmid，RXp）处的电压与参考电压（Vref）之间的关系，以及（c）电压调节电路 耦合到所述比较器（120）和所述接收器单元（110,610）的所述天线输入端（RXn，Vmid，RXp），所述电压调节电路适于重复地调节所述天线输入端的电压（RXn，Vmid，RXp ）基于比较器输出信号（agc_comp）。 电压调节电路适于在由接收器单元（110,610）确定的时间点之前将天线输入端（RXn，Vmid，RXp）处的电压的每次重复调节分离第一时间常数，并且将第二时间 在由接收器单元（110,610）确定的时间点之后的时间常数，其中第一时间常数小于第二时间常数。 还描述了一种方法，计算机程序和计算机程序产品。

    RF DEVICE AND METHOD WITH IMPROVED ACTIVE LOAD MODULATION CAPABILITY
    8.
    发明申请
    RF DEVICE AND METHOD WITH IMPROVED ACTIVE LOAD MODULATION CAPABILITY 有权
    具有改进的有源负载调制能力的RF设备和方法

    公开(公告)号：US20150031315A1

    公开(公告)日：2015-01-29

    申请号：US14321433

    申请日：2014-07-01

    Applicant: NXP B.V.

    Inventor： Michael Pieber ,  Erich Merlin ,  Stefan Mendel

    IPC: H04B1/44

    CPC classification number: H04B1/44 ,  H04B5/0075 ,  H04B5/02

    Abstract: There is described an RF bidirectional communication device utilizing active load modulation, the device comprising (a) a resonance circuit including an antenna (326), and (b) a control unit (322) for controlling communication of the device, including switching between a transmission mode and a receiving mode, wherein the control unit is adapted to (c) modify a configuration of the resonance circuit such that the resonance circuit has a first resonance frequency (f0) when the device is in the transmission mode and a second resonance frequency (f0+Δf) when the device is in the receiving mode, and (d) modify the configuration of the resonance circuit such that a Q-factor of the resonance circuit is periodically decreased while the device is in the transmission mode. There is also described a corresponding method and a system comprising a RF device and a reader/writer device. Furthermore, there is described a computer program and a computer program product.

    Abstract translation: 描述了利用有源负载调制的RF双向通信装置，该装置包括（a）包括天线的谐振电路（326）和（b）用于控制装置的通信的控制单元（322），包括在 传输模式和接收模式，其中所述控制单元适于（c）修改所述谐振电路的配置，使得当所述设备处于所述传输模式时所述谐振电路具有第一谐振频率（f0），并且所述谐振电路具有第二谐振频率 （f0 +＆Dgr; f）当设备处于接收模式时，（d）修改谐振电路的配置，使得谐振电路的Q因子在器件处于传输模式时周期性地减小。 还描述了包括RF设备和读取器/写入器设备的相应方法和系统。 此外，描述了计算机程序和计算机程序产品。

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