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    Timing CalibrationTechnique For Radio Frequency Digital-To-Analog Converter
    1.
    发明公开
    Timing CalibrationTechnique For Radio Frequency Digital-To-Analog Converter 审中-公开

    公开(公告)号：US20230231566A1

    公开(公告)日：2023-07-20

    申请号：US17577501

    申请日：2022-01-18

    Applicant: NXP B.V.

    Inventor： Erik Olieman ,  Rene Verlinden ,  Helmut Kranabenter

    IPC: H03M1/10

    CPC classification number: H03M1/1014

    Abstract: A calibration system comprises an actuator circuit comprising a first delay circuit that receives a plurality of data pulses and a second delay circuit that receives the pulses, wherein one of the first and second delay circuits delays the data pulses independently of the other of the first and second delay circuits; a data switch that receives an output of the actuator circuit including delay data signals of the data pulses from the first and second delay circuits and switches and outputs a plurality of local oscillator (LO) signals for output as a controlled LO signal according to control signals of the delay data signals and applied to the data switch. At least one calibration switch receives the output of the actuator circuit and the plurality of LO+ and LO− signals, and outputs a second controlled LO signal output to a sense circuit.

    CONTACTLESS COMMUNICATION DEVICE WITH RECEIVER INPUT VOLTAGE STABILIZATION
    2.
    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。

    METHOD OF OPERATING A RADAR SYSTEM
    5.
    发明申请
    METHOD OF OPERATING A RADAR SYSTEM 有权

    公开(公告)号：US20240402293A1

    公开(公告)日：2024-12-05

    申请号：US18657171

    申请日：2024-05-07

    Applicant: NXP B.V.

    Inventor： Helmut Kranabenter ,  David Lugitsch ,  Wolfgang Küchler

    IPC: G01S7/40 ,  G01S7/285

    Abstract: The dynamic range of the output of a radar system with a transmitter and receiver can be optimized by determining the phase of a radar reflection signal at the receiver and adjusting the phase so that the in-phase and quadrature components of the signal have equal amplitudes. The phase can be adjusted at the receiver or by adjusting the phase of the output signal at the transmitter.

    Timing calibration technique for radio frequency digital-to-analog converter
    7.
    发明授权
    Timing calibration technique for radio frequency digital-to-analog converter 有权

    公开(公告)号：US11791832B2

    公开(公告)日：2023-10-17

    申请号：US17577501

    申请日：2022-01-18

    Applicant: NXP B.V.

    Inventor： Erik Olieman ,  Rene Verlinden ,  Helmut Kranabenter

    IPC: H03M1/10

    CPC classification number: H03M1/1014

    Abstract: A calibration system comprises an actuator circuit comprising a first delay circuit that receives a plurality of data pulses and a second delay circuit that receives the pulses, wherein one of the first and second delay circuits delays the data pulses independently of the other of the first and second delay circuits; a data switch that receives an output of the actuator circuit including delay data signals of the data pulses from the first and second delay circuits and switches and outputs a plurality of local oscillator (LO) signals for output as a controlled LO signal according to control signals of the delay data signals and applied to the data switch. At least one calibration switch receives the output of the actuator circuit and the plurality of LO+ and LO− signals, and outputs a second controlled LO signal output to a sense circuit.

    Contactless communication device with receiver input voltage stabilization
    9.
    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.

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