Signal modulation for secure communication

    公开(公告)号:US09712496B2

    公开(公告)日:2017-07-18

    申请号:US14698226

    申请日:2015-04-28

    Applicant: NXP B.V.

    Abstract: Aspects of the present disclosure are directed to circuits, apparatuses and methods for generating communication signals resistant to early-detect-late-commit attacks. An example embodiment, a plurality of data symbols is generated that includes first and second data symbols. A communication signal is generated that is decodable according to a mapping of the first and second data symbols to respective first and second waveforms. The first waveform has a leading edge that is indicative of the first waveform, and second waveform has a second leading edge that is indicative of the second waveform. In generating the communication signal, a first portion of the communication signal is modulated according to the first waveform for the first data symbol. A second portion of the communication signal is modulated, for the second data symbol, according to a modified second waveform having a leading edge that is indicative of the first waveform.

    Communications with interaction detection

    公开(公告)号:US09613475B2

    公开(公告)日:2017-04-04

    申请号:US14722800

    申请日:2015-05-27

    Applicant: NXP B.V.

    Abstract: Aspects of the disclosure are directed to detecting interactions with signals, such as by an attacker attempting to gain access to a vehicle. Signal waveforms used for authentication are evaluated, for communications between respective circuits. Possible interaction by a third circuit is analyzed by detecting variations in characteristics of a leading portion of a data symbol relative to known characteristics of the leading portion of the data signal. A condition indicative of whether the signal waveform has been interacted with and retransmitted is determined, based on the detected variations. For instance, if the variations are indicative of a known type of variation induced by interaction and retransmission, such interaction and transmission can be detected. Where the determined condition is not deemed an attack, an output signal that provides vehicle access is generated based on the determined condition.

    MIMO RADAR SYSTEM
    3.
    发明申请
    MIMO RADAR SYSTEM 有权
    MIMO雷达系统

    公开(公告)号:US20160131752A1

    公开(公告)日:2016-05-12

    申请号:US14538541

    申请日:2014-11-11

    Applicant: NXP, B.V.

    Abstract: Various exemplary embodiments relate to a method for detecting an object using radar system having M transmit antennas, N receive antennas, and a processor, including: receiving, by the processor, N×M digital signals, wherein the N receivers receive M received signals corresponding to M sequences of encoded transmitted signals resulting in N×M digital signals; processing the N×M digital signals to produce N×M first range/relative velocity matrices; applying a phase compensation to N×(M−1) first range/relative velocity matrices to compensate for a difference in range between the N×(M−1) first range/relative velocity matrices and the Mth range/velocity matrix; decoding the M phase compensated range/relative velocity matrices for the N receivers using an inverse of the transmit encoding to produce M decoded phase range/relative velocity matrices for the N receivers; detecting objects using the M range/relative velocity matrices for the N receivers to produce a detection vector.

    Abstract translation: 各种示例性实施例涉及使用具有M个发射天线,N个接收天线和处理器的雷达系统来检测对象的方法,包括:由处理器接收N×M个数字信号,其中N个接收机接收对应于M个接收信号的M个接收信号 到编码的发送信号的M个序列,得到N×M个数字信号; 处理N×M数字信号以产生N×M个第一范围/相对速度矩阵; 对N×(M-1)个第一范围/相对速度矩阵施加相位补偿以补偿N×(M-1)个第一范围/相对速度矩阵与第M个范围/速度矩阵之间的范围差; 使用发射编码的逆来解码N个接收机的M相补偿范围/相对速度矩阵,以产生用于N个接收机的M个解码的相位范围/相对速度矩阵; 使用M个范围/相对速度矩阵来检测物体,以产生检测向量。

    SIGNAL-BASED DATA COMPRESSION
    4.
    发明申请
    SIGNAL-BASED DATA COMPRESSION 有权
    基于信号的数据压缩

    公开(公告)号:US20150346321A1

    公开(公告)日:2015-12-03

    申请号:US14288670

    申请日:2014-05-28

    Applicant: NXP B.V.

    Abstract: Aspects of the present disclosure are directed to apparatuses and methods involving the detection of signal characteristics. As may be implemented in accordance with one or more embodiments, an apparatus includes a radar or sonar transceiver that transmits signals and receives reflections of the transmitted signals. A data compression circuit determines a compression factor based on characteristics of the signals, such as may relate to a channel over which the signal passes and/or related aspects of an object from which the signals are reflected (e.g., velocity, trajectory and distance). Data representing the signals is compressed as a function of the determined compression factor.

    Abstract translation: 本公开的方面涉及涉及检测信号特性的装置和方法。 如可以根据一个或多个实施例来实现的,装置包括发射信号并接收发射信号的反射的雷达或声纳收发器。 数据压缩电路基于信号的特性来确定压缩因子,例如可以涉及信号通过的信道和/或信号被反射的对象的相关方面(例如,速度,轨迹和距离) 。 表示信号的数据被压缩为所确定的压缩因子的函数。

    Radar ambiguity resolving detector

    公开(公告)号:US09835723B2

    公开(公告)日:2017-12-05

    申请号:US14527840

    申请日:2014-10-30

    Applicant: NXP B.V.

    Abstract: Various exemplary embodiments relate to a method for determining the velocity of an object using radar system having a processor, including: receiving, by a processor, a first digital signal corresponding to a first transmit signal; receiving, by the processor, a second digital signal corresponding to a second transmit signal; processing the first digital signal to produce a first range/relative velocity matrix; detecting objects in the first range/relative velocity matrix to produce a first detection vector; unfolding the first detection vector; processing the second digital signal to produce a second range/relative velocity matrix; interpolating the second range/relative velocity matrix in the relative velocity direction wherein the interpolated second range/relative velocity matrix has a frequency spacing corresponding to the frequency spacing of the first range/relative range velocity matrix in the relative velocity direction; detecting objects in the second range/relative velocity matrix to produce a second detection vector; unfolding the second detection vector; and determining a true velocity of the detected objects based upon the unfolded first and second detection vectors.

    COMMUNICATIONS WITH INTERACTION DETECTION
    7.
    发明申请
    COMMUNICATIONS WITH INTERACTION DETECTION 有权
    具有交互检测的通信

    公开(公告)号:US20160350987A1

    公开(公告)日:2016-12-01

    申请号:US14722800

    申请日:2015-05-27

    Applicant: NXP B.V.

    Abstract: Aspects of the disclosure are directed to detecting interactions with signals, such as by an attacker attempting to gain access to a vehicle. Signal waveforms used for authentication are evaluated, for communications between respective circuits. Possible interaction by a third circuit is analyzed by detecting variations in characteristics of a leading portion of a data symbol relative to known characteristics of the leading portion of the data signal. A condition indicative of whether the signal waveform has been interacted with and retransmitted is determined, based on the detected variations. For instance, if the variations are indicative of a known type of variation induced by interaction and retransmission, such interaction and transmission can be detected. Where the determined condition is not deemed an attack, an output signal that provides vehicle access is generated based on the determined condition.

    Abstract translation: 本公开的方面旨在检测与信号的交互,例如由尝试访问车辆的攻击者。 用于认证的信号波形被评估用于各个电路之间的通信。 通过检测数据符号的前导部分的相对于数据信号的前导部分的已知特性的特性的变化来分析第三电路的可能的交互。 基于检测到的变化来确定指示信号波形是否已经交互并重传的条件。 例如,如果变化表示由交互和重传引起的已知类型的变化,则可以检测到这种交互和传输。 在确定的条件不被认为是攻击的情况下,基于所确定的条件生成提供车辆访问的输出信号。

    RADAR AMBIGUITY RESOLVING DETECTOR
    8.
    发明申请
    RADAR AMBIGUITY RESOLVING DETECTOR 有权
    雷达系列解决方案

    公开(公告)号:US20160124086A1

    公开(公告)日:2016-05-05

    申请号:US14527840

    申请日:2014-10-30

    Applicant: NXP B.V.

    Abstract: Various exemplary embodiments relate to a method for determining the velocity of an object using radar system having a processor, including: receiving, by a processor, a first digital signal corresponding to a first transmit signal; receiving, by the processor, a second digital signal corresponding to a second transmit signal; processing the first digital signal to produce a first range/relative velocity matrix; detecting objects in the first range/relative velocity matrix to produce a first detection vector; unfolding the first detection vector; processing the second digital signal to produce a second range/relative velocity matrix; interpolating the second range/relative velocity matrix in the relative velocity direction wherein the interpolated second range/relative velocity matrix has a frequency spacing corresponding to the frequency spacing of the first range/relative range velocity matrix in the relative velocity direction; detecting objects in the second range/relative velocity matrix to produce a second detection vector; unfolding the second detection vector; and determining a true velocity of the detected objects based upon the unfolded first and second detection vectors.

    Abstract translation: 各种示例性实施例涉及使用具有处理器的雷达系统来确定物体的速度的方法,包括:由处理器接收对应于第一发射信号的第一数字信号; 由处理器接收对应于第二发射信号的第二数字信号; 处理第一数字信号以产生第一范围/相对速度矩阵; 检测所述第一范围/相对速度矩阵中的对象以产生第一检测向量; 展开第一个检测向量; 处理所述第二数字信号以产生第二范围/相对速度矩阵; 内插相对速度方向上的第二范围/相对速度矩阵,其中内插的第二范围/相对速度矩阵具有与相对速度方向上的第一范围/相对范围速度矩阵的频率间隔相对应的频率间隔; 检测所述第二范围/相对速度矩阵中的对象以产生第二检测向量; 展开第二检测向量; 以及基于展开的第一和第二检测向量来确定检测到的对象的真实速度。

    Integrated circuit with directional light sensor, device including such an IC and method of manufacturing such an IC
    9.
    发明授权
    Integrated circuit with directional light sensor, device including such an IC and method of manufacturing such an IC 有权
    具有定向光传感器的集成电路,包括这种IC的装置及其制造方法

    公开(公告)号:US09331219B2

    公开(公告)日:2016-05-03

    申请号:US14398709

    申请日:2013-05-02

    Applicant: NXP B.V.

    Abstract: Disclosed is an integrated circuit comprising a substrate having a major surface; a directional light sensor, the directional light sensor comprising a plurality of photodetectors on a region of said major surface, said plurality of photodetectors comprising a set of first photodetectors for detecting light from a first direction and a set of second photodetectors for detecting light from a second direction, wherein a first photodetector is located adjacent to a second photodetector; and a light blocking structure comprising a first portion extending from said major surface in between the first photodetector and the second photodetector; and a second portion extending from the first portion and at least partially overhanging at least one of the first photodetector and the second photodetector. A device including such an IC and a method of manufacturing such an IC are also disclosed.

    Abstract translation: 公开了一种集成电路,其包括具有主表面的基板; 定向光传感器,所述定向光传感器包括在所述主表面的区域上的多个光电检测器,所述多个光电检测器包括一组用于检测来自第一方向的光的第一光电检测器和一组第二光电检测器,用于检测来自 第二方向,其中第一光电检测器位于第二光电检测器附近; 以及遮光结构,包括从所述第一光电检测器和所述第二光电检测器之间的所述主表面延伸的第一部分; 以及从所述第一部分延伸并且至少部分地伸出所述第一光电检测器和所述第二光电检测器中的至少一个的第二部分。 还公开了包括这种IC的装置和制造这种IC的方法。

    Integrated Circuit with Directional Light Sensor, device including such an IC and method of manufacturing such an IC
    10.
    发明申请
    Integrated Circuit with Directional Light Sensor, device including such an IC and method of manufacturing such an IC 有权
    具有定向光传感器的集成电路,包括这种IC的装置及其制造方法

    公开(公告)号:US20150171231A1

    公开(公告)日:2015-06-18

    申请号:US14398709

    申请日:2013-05-02

    Applicant: NXP B.V.

    Abstract: Disclosed is an integrated circuit comprising a substrate having a major surface; a directional light sensor, the directional light sensor comprising a plurality of photodetectors on a region of said major surface, said plurality of photodetectors comprising a set of first photodetectors for detecting light from a first direction and a set of second photodetectors for detecting light from a second direction, wherein a first photodetector is located adjacent to a second photodetector; and a light blocking structure comprising a first portion extending from said major surface in between the first photodetector and the second photodetector; and a second portion extending from the first portion and at least partially overhanging at least one of the first photodetector and the second photodetector. A device including such an IC and a method of manufacturing such an IC are also disclosed.

    Abstract translation: 公开了一种集成电路,其包括具有主表面的基板; 定向光传感器,所述定向光传感器包括在所述主表面的区域上的多个光电检测器,所述多个光电检测器包括一组用于检测来自第一方向的光的第一光电检测器和一组第二光电检测器,用于检测来自 第二方向,其中第一光电检测器位于第二光电检测器附近; 以及遮光结构,包括从所述第一光电检测器和所述第二光电检测器之间的所述主表面延伸的第一部分; 以及从所述第一部分延伸并且至少部分地伸出所述第一光电检测器和所述第二光电检测器中的至少一个的第二部分。 还公开了包括这种IC的装置和制造这种IC的方法。

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