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    Method and system for operating a communications device that communicates via inductive coupling
    1.
    发明授权
    Method and system for operating a communications device that communicates via inductive coupling 有权

    公开(公告)号：US10720967B2

    公开(公告)日：2020-07-21

    申请号：US15715027

    申请日：2017-09-25

    Applicant: NXP B.V.

    Inventor： Gernot Hueber ,  Erich Merlin ,  Johannes Bruckbauer

    IPC: H04B5/00 ,  H04B17/21 ,  H04B17/11

    Abstract: Embodiments of methods and systems for operating a communications device that communicates via inductive coupling are described. In an embodiment, a method for operating a communications device that communicates via inductive coupling involves adjusting a configuration of the communications device in response to a clock signal that is synchronized to a received clock signal, obtaining information that corresponds to transmission current or power generated in response to the adjusted configuration, and quantifying a detuning condition in response to the obtained information. Other embodiments are also described.

    System to calibrate phase using system information
    2.
    发明授权
    System to calibrate phase using system information 有权

    公开(公告)号：US10567092B2

    公开(公告)日：2020-02-18

    申请号：US15694590

    申请日：2017-09-01

    Applicant: NXP B.V.

    Inventor： Gernot Hueber ,  Ian Thomas Macnamara ,  Johannes Bruckbauer

    IPC: H04B17/12 ,  H04B5/00 ,  H04B17/318 ,  H04B17/27 ,  H04L7/033

    Abstract: Embodiments of methods and systems for operating a communications device are described. In one embodiment, a method for operating a communications device that communicates via inductive coupling involves adjusting a phase configuration of the communications device in response to at least one system or environmental parameter, modulating a carrier signal with the adjusted phase configuration using active load modulation (ALM), and transmitting the modulated carrier signal from the communications device for inductive coupling. In some embodiments, the at least one system or environmental parameter is selected from one or more of the following: a distance information, a geometric information, a system code, a technology code, a transmitter current and/or a transmitter power, a detuning condition, a quality factor and a resonant frequency of a resonant system.

    METHOD AND SYSTEM FOR OPERATING A COMMUNICATIONS DEVICE THAT COMMUNICATES VIA INDUCTIVE COUPLING
    4.
    发明申请
    METHOD AND SYSTEM FOR OPERATING A COMMUNICATIONS DEVICE THAT COMMUNICATES VIA INDUCTIVE COUPLING 审中-公开

    公开(公告)号：US20190097688A1

    公开(公告)日：2019-03-28

    申请号：US15715044

    申请日：2017-09-25

    Applicant: NXP B.V.

    Inventor： Gernot Hueber ,  Ian Thomas Macnamara ,  Jingfeng Ding

    IPC: H04B5/00

    CPC classification number: H04B5/0075 ,  H04B5/0031 ,  H04B5/0081

    Abstract: Embodiments of methods and systems for operating a communications device that communicates via inductive coupling are described. In an embodiment, a method for operating a communications device that communicates via inductive coupling involves detecting a system condition associated with the communications device and tuning a matching network of the communications device in response to the system condition, where the matching network includes a hybrid transformer that separates a receiver of the communications device from a transmitter of the communications device. Other embodiments are also described.

    METHODS AND APPARATUSES FOR TESTING INDUCTIVE COUPLING CIRCUITRY
    5.
    发明申请
    METHODS AND APPARATUSES FOR TESTING INDUCTIVE COUPLING CIRCUITRY 审中-公开

    公开(公告)号：US20190068156A1

    公开(公告)日：2019-02-28

    申请号：US15692594

    申请日：2017-08-31

    Applicant: NXP B.V.

    Inventor： Gernot Hueber ,  Leonhard Kormann ,  Ian Thomas Macnamara

    IPC: H03H7/38 ,  H04L25/02 ,  H04L25/49 ,  H03H7/01 ,  H03H7/46 ,  H03H11/12

    CPC classification number: H03H7/38 ,  G01R27/02 ,  H03H7/01 ,  H03H7/468 ,  H03H11/1278 ,  H03H11/1291 ,  H04L25/0278 ,  H04L25/49

    Abstract: Aspects of the disclosure are directed to auto-sweeping impedance-matching circuitry that matches an impedance of an RF antenna. As may be implemented in accordance with one or more embodiments, a transmitter that is configured and arranged to transmit signals to remote devices via the RF antenna, is used to communicate a plurality of test signals to the impedance-matching circuitry, with each test signal having a designated frequency and/or test signal pattern that is different than the designated frequency and/or test signal pattern of the other test signals. A characteristic of each of the test signals as passed through the impedance-matching circuitry is detected. For each of the test signals generated for the auto-sweep, the detected characteristic is compared to an expected characteristic for the test signal, and an output indicative of compliance of the impedance-matching circuitry with a design specification is generated and transmitted in response to the comparison.

    READER-MODE PERFORMANCE ENHANCEMENT FOR INDUCTIVELY COUPLED COMMUNICATION SYSTEMS
    8.
    发明申请
    READER-MODE PERFORMANCE ENHANCEMENT FOR INDUCTIVELY COUPLED COMMUNICATION SYSTEMS 审中-公开

    公开(公告)号：US20190305829A1

    公开(公告)日：2019-10-03

    申请号：US15942248

    申请日：2018-03-30

    Applicant: NXP B.V.

    Inventor： Gernot Hueber ,  Ian Thomas Macnamara

    IPC: H04B5/02 ,  H04B5/00 ,  H04B17/309 ,  H04W52/18

    Abstract: This specification discloses methods and systems providing reader-mode performance enhancement for operating a device that communicates via inductive coupling. In reader-mode, Tx (transmitter) power of a reader device is maximized even though for some tags, the communication distance is limited by Rx (receiver) sensitivity. Therefore, power is wasted. Even worse, a too highly boosted Tx power demands a high Rx dynamic range and consequently a low Rx sensitivity. In turn, the communication distance may even be degraded by a too highly boosted Tx power. Therefore, in some embodiments, reader-mode performance enhancement is based on backing off Tx (transmitter) power when not needed (energy distance>communication distance) to save power and/or to relax reader-mode Rx (receiver) sensitivity requirements. In some embodiments, the backing off of Tx (transmitter) is also based on a sensor determining a geometric position/location of a reader device relative to a tag-mode device.

    SYSTEM TO CALIBRATE PHASE USING SYSTEM INFORMATION
    9.
    发明申请
    SYSTEM TO CALIBRATE PHASE USING SYSTEM INFORMATION 审中-公开

    公开(公告)号：US20190074914A1

    公开(公告)日：2019-03-07

    申请号：US15694590

    申请日：2017-09-01

    Applicant: NXP B.V.

    Inventor： Gernot Hueber ,  Ian Thomas Macnamara ,  Johannes Bruckbauer

    IPC: H04B17/12 ,  H04B5/00 ,  H04B17/27

    CPC classification number: H04B17/12 ,  H04B5/0031 ,  H04B5/0056 ,  H04B5/0075 ,  H04B17/27 ,  H04B17/318 ,  H04L7/0331

    Abstract: Embodiments of methods and systems for operating a communications device are described. In one embodiment, a method for operating a communications device that communicates via inductive coupling involves adjusting a phase configuration of the communications device in response to at least one system or environmental parameter, modulating a carrier signal with the adjusted phase configuration using active load modulation (ALM), and transmitting the modulated carrier signal from the communications device for inductive coupling. In some embodiments, the at least one system or environmental parameter is selected from one or more of the following: a distance information, a geometric information, a system code, a technology code, a transmitter current and/or a transmitter power, a detuning condition, a quality factor and a resonant frequency of a resonant system.

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