DIGITAL SYNCHRONIZER
    21.
    发明申请

    公开(公告)号:US20160294541A1

    公开(公告)日:2016-10-06

    申请号:US15085776

    申请日:2016-03-30

    Applicant: NXP B.V.

    Abstract: A digital synchronizer is disclosed, comprising: a phase locked loop (100) configured to produce an output signal (clkFc) having the same frequency as an input signal (Frx) by selecting a divider ratio (/P) of a frequency divider (130) with a control signal (Pctrl), the frequency divider (130) configured to divide the frequency of a high frequency signal (clkHF) by the divider ratio (/P) to provide the output signal (clkFc); a carrier generator (300) comprising a look-up table (320), the carrier generator (300) configured to generate an oversampled carrier signal using the look-up-table (320) by using the control signal (Pctrl) to produce a carrier signal with a period corresponding with a contemporaneous period of the output signal (clkFc).

    Method and system for determining the position of at least one node in a communication network

    公开(公告)号:US11877256B2

    公开(公告)日:2024-01-16

    申请号:US17458752

    申请日:2021-08-27

    Applicant: NXP B.V.

    CPC classification number: H04W64/00 H04W56/0015

    Abstract: In accordance with a first aspect of the present disclosure, a method is conceived for determining the position of at least one node in a communication network, wherein the communication network comprises a localization system that includes a processing unit, a primary anchor and at least one secondary anchor, the method comprising: the primary anchor transmits a poll message to the node and to the secondary anchor; the primary anchor receives a response message from the node; the secondary anchor receives said poll message from the primary anchor and said response message from the node; the processing unit calculates the position of the node using position information and timing information, wherein said position information is position information of the primary anchor and of the secondary anchor, and wherein said timing information is timing information of the poll message transmission by the primary anchor, of the poll message reception by the node and the secondary anchor, of the response message transmission by the node, and of the response message reception by the primary anchor and the secondary anchor.

    Mobile device and reader for facilitating a transaction

    公开(公告)号:US10438029B2

    公开(公告)日:2019-10-08

    申请号:US15996440

    申请日:2018-06-02

    Applicant: NXP B.V.

    Abstract: According to a first aspect of the present disclosure, a mobile device for facilitating a transaction is provided, comprising: a secure element configured to contain transaction-related data; an ultra-wideband radio unit operatively coupled to the secure element and configured to carry out ultra-wideband radio communication with an external reader; wherein the ultra-wideband radio unit is configured to operate as an interface between the secure element and said external reader. According to a second aspect of the present disclosure, a reader for facilitating a transaction is provided, comprising: an ultra-wideband communication and tracking unit configured to communicate with at least one external mobile device having an ultra-wideband radio unit and to track said mobile device; a processing unit operatively coupled to the ultra-wideband communication and tracking unit, said processing unit being configured to process at least one transaction. According to a third aspect of the present disclosure, a corresponding method for facilitating a transaction using a reader is conceived. According to a fourth aspect of the present disclosure, a corresponding computer program is provided.

    CARRIER RECOVERY SYSTEM AND METHOD
    26.
    发明申请

    公开(公告)号:US20190074930A1

    公开(公告)日:2019-03-07

    申请号:US16029462

    申请日:2018-07-06

    Applicant: NXP B.V.

    Abstract: The disclosure relates to a processing module of a receiver device and associated method and apparatus. The method comprises receiving a signal comprising one or more frames, each frame comprising a synchronization-symbol-portion, a security-sequence-portion, and a data-payload-portion; and processing the signal to perform carrier recovery, and excluding at least part of the security-sequence-portions of the one or more frames from the carrier recovery process.

    MOBILE DEVICE AND READER FOR FACILITATING A TRANSACTION

    公开(公告)号:US20180349653A1

    公开(公告)日:2018-12-06

    申请号:US15996440

    申请日:2018-06-02

    Applicant: NXP B.V.

    CPC classification number: G06K7/10297 G07B15/00 G07C9/00111 H04B5/0056

    Abstract: According to a first aspect of the present disclosure, a mobile device for facilitating a transaction is provided, comprising: a secure element configured to contain transaction-related data; an ultra-wideband radio unit operatively coupled to the secure element and configured to carry out ultra-wideband radio communication with an external reader; wherein the ultra-wideband radio unit is configured to operate as an interface between the secure element and said external reader. According to a second aspect of the present disclosure, a reader for facilitating a transaction is provided, comprising: an ultra-wideband communication and tracking unit configured to communicate with at least one external mobile device having an ultra-wideband radio unit and to track said mobile device; a processing unit operatively coupled to the ultra-wideband communication and tracking unit, said processing unit being configured to process at least one transaction. According to a third aspect of the present disclosure, a corresponding method for facilitating a transaction using a reader is conceived. According to a fourth aspect of the present disclosure, a corresponding computer program is provided.

    NEAR FIELD COMMUNICATION DEVICE
    28.
    发明申请

    公开(公告)号:US20180269929A1

    公开(公告)日:2018-09-20

    申请号:US15462771

    申请日:2017-03-17

    Applicant: NXP B.V.

    Abstract: A near field communication (NFC) device capable of operating by being powered by the field includes an NFC module for generating an electromagnetic carrier signal and modulating the carrier signal according to data to be transmitted, and an antenna circuit coupled to and driven by said NFC module with the modulated carrier signal. An electromagnetic compatibility (EMC) filter of the NFC device is coupled to the NFC module via output terminals of said NFC module. A powered by the field circuit of the NFC device is adapted to harvest energy from an external field to power said NFC device. The power by the field circuit is coupled to said EMC filter via one or more impedance elements. The NFC device is adapted to be able to operate in one of a reader mode, a battery supplied card mode, and a powered by the field card mode.

    Equalization from presence change transients

    公开(公告)号:US09768985B2

    公开(公告)日:2017-09-19

    申请号:US15006794

    申请日:2016-01-26

    Applicant: NXP B.V.

    Abstract: An apparatus includes an antenna that is configured to transmit a radio frequency signal across a transmission media having a channel response impairment. A transmission path includes an encoder circuit that encodes data on a carrier signal; and a pre-equalizer circuit that is configured to pre-distort the encoded data according to equalizer coefficients representing the channel response impairment. A first equalization path includes circuitry that generates the equalizer coefficients based upon transients resulting from a presence change event for the carrier signal. A second equalization path includes circuitry that generates the equalizer coefficients based upon knowledge of encoded data on the carrier signal. Selection circuitry selects between the first equalization path and the second equalization path.

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