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公开(公告)号：US20170117934A1
公开(公告)日：2017-04-27
申请号：US14923871
申请日：2015-10-27
Applicant: NXP B.V.
Inventor： Arie Geert Cornelis Koppelaar , Andries Pieter Hekstra , Frank Harald Erich Ho Chung Leong , Stefan Drude , Marinus van Splunter
IPC: H04B1/7117 , H04B1/10
CPC classification number: H04B1/7117 , H04B1/1081 , H04B1/712 , H04B1/71637 , H04B1/719
Abstract: A receiver for receiving an input signal is disclosed. The receiver includes a processor, a memory, a plurality of sub-receivers configured to receive a plurality of versions of the input signal through a plurality of transmission channels, a sub-receiver selection module configured to select one more of the plurality of sub-receivers using expected contributions to signal-to-noise (SNR) of an output signal based on an uncertainty of the estimated contributions. The receiver also includes a combiner to combine outputs of the selected sub-receivers to produce the output signal.
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公开(公告)号：US09485609B2
公开(公告)日：2016-11-01
申请号：US14615696
申请日：2015-02-06
Applicant: NXP B.V.
Inventor： Andries Hekstra , Arie Koppelaar , Stefan Drude , Frank Leong
IPC: H04W4/00 , B60R25/24 , H04L9/32 , G07C9/00 , H04W12/08 , G01S13/82 , H04W12/06 , H04L7/027 , H04L9/00
CPC classification number: H04W4/80 , B60R25/246 , G01S13/751 , G01S13/76 , G01S13/82 , G07C9/00309 , G07C2009/00317 , H04L7/027 , H04L9/005 , H04L9/32 , H04L9/3271 , H04L2209/80 , H04L2209/84 , H04W12/06 , H04W12/08
Abstract: Using a clock circuit, a clock signal is generated at a base frequency. A frequency adjustment circuit selects, based upon a frequency offset value, a particular frequency adjustment value from a plurality of frequency adjustment values. An adjusted clock signal is provided that has a frequency corresponding to the base frequency as modified by the particular frequency adjustment value. Wireless communication signals are received at a wireless communication circuit. From the communication signals, a set of received wireless communication pulses are identified that have a pulse repetition frequency that corresponds to the adjusted clock signal. A distance ranging protocol is applied, using a processing circuit, to the identified set of received communication pulses.
Abstract translation: 使用时钟电路，以基频产生时钟信号。 频率调整电路基于频率偏移值，从多个频率调整值中选择特定的频率调整值。 提供经调整的时钟信号，其具有对应于由特定频率调整值修改的基本频率的频率。 在无线通信电路处接收无线通信信号。 从通信信号中，识别出具有对应于调整后的时钟信号的脉冲重复频率的一组接收到的无线通信脉冲。 使用处理电路将距离测距协议应用于所识别的一组接收到的通信脉冲。
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公开(公告)号：US20160234684A1
公开(公告)日：2016-08-11
申请号：US14615738
申请日：2015-02-06
Applicant: NXP B.V.
Inventor： Andries Hekstra , Arie Koppelaar , Stefan Drude , Frank Leong
Abstract: Distance-based authentication is provided for mitigating undesirable interaction and/or attacks upon ranging systems, such as those involving vehicle entry or secure payment. As may be implemented in accordance with one or more embodiments, a leading edge of one or more pulses in a waveform of a signal is obscured as part of distance-based authentication. For instance, noise may be generated via a noise modulation circuit and combined with some or all of a leading edge of a pulse. Distance-based authentication is provided by transmitting a signal with a waveform having the obscured portion of the leading edge, which operates to mitigate detection of the polarity of the leading edge or otherwise of the leading edge itself.
Abstract translation: 提供了基于距离的身份验证，以减轻对测距系统（例如涉及车辆进入或安全支付）的不期望的交互和/或攻击。 如可以根据一个或多个实施例来实现的，作为基于距离的认证的一部分，信号波形中的一个或多个脉冲的前沿被遮蔽。 例如，可以通过噪声调制电路产生噪声，并与脉冲的前沿中的一些或全部组合。 通过发送具有前沿的遮蔽部分的波形的信号来提供基于距离的认证，其操作以减轻前缘本身的前沿或其他方面的极性的检测。
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公开(公告)号：US20160234008A1
公开(公告)日：2016-08-11
申请号：US14615696
申请日：2015-02-06
Applicant: NXP B.V.
Inventor： Andries Hekstra , Arie Koppelaar , Stefan Drude , Frank Leong
CPC classification number: H04W4/80 , B60R25/246 , G01S13/751 , G01S13/76 , G01S13/82 , G07C9/00309 , G07C2009/00317 , H04L7/027 , H04L9/005 , H04L9/32 , H04L9/3271 , H04L2209/80 , H04L2209/84 , H04W12/06 , H04W12/08
Abstract: Using a clock circuit, a clock signal is generated at a base frequency. A frequency adjustment circuit selects, based upon a frequency offset value, a particular frequency adjustment value from a plurality of frequency adjustment values. An adjusted clock signal is provided that has a frequency corresponding to the base frequency as modified by the particular frequency adjustment value. Wireless communication signals are received at a wireless communication circuit. From the communication signals, a set of received wireless communication pulses are identified that have a pulse repetition frequency that corresponds to the adjusted clock signal. A distance ranging protocol is applied, using a processing circuit, to the identified set of received communication pulses.
Abstract translation: 使用时钟电路，以基频产生时钟信号。 频率调整电路基于频率偏移值，从多个频率调整值中选择特定的频率调整值。 提供经调整的时钟信号，其具有对应于由特定频率调整值修改的基本频率的频率。 在无线通信电路处接收无线通信信号。 从通信信号中，识别出具有对应于调整后的时钟信号的脉冲重复频率的一组接收到的无线通信脉冲。 使用处理电路将距离测距协议应用于所识别的一组接收到的通信脉冲。
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公开(公告)号：US10223554B2
公开(公告)日：2019-03-05
申请号：US13692973
申请日：2012-12-03
Applicant: NXP B.V.
Inventor： Ewout Brandsma , Maarten Christiaan Pennings , Timo van Roermund , Stefan Drude
Abstract: According to an aspect of the invention a localization method for localizing a host device (100) in a control system, in particular a building control system, is provided, the localization method comprising determining geographical location information of the host device (100) by means of a localization device (102) and associating the geographical location information with a unique identifier of the host device (100). According to another aspect of the invention a computer program product is provided that comprises program instructions which, when being executed by one or more processing units, cause said processing units to carry out or control the steps of the inventive localization method. According to another aspect of the invention, a localization device (102), in particular a portable localization device is provided for use in the inventive localization method.
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Patent Agency Ranking
公开(公告)号：US09916708B2
公开(公告)日：2018-03-13
申请号：US15605721
申请日：2017-05-25
Applicant: NXP B.V.
Inventor： Arie Koppelaar , Frank Leong , Stefan Drude
CPC classification number: G07C9/00182 , B60R25/24 , G07C2009/00198 , G07C2009/00293 , H04B1/7117
Abstract: According to a first aspect of the present disclosure, a signal processing system is provided, comprising: a receiving unit configured to receive at least one signal that comprises a plurality of multipath components; a verification unit configured to correlate at least one multipath component under test with a reference signal derived from one or more of said plurality of multipath components. According to a second aspect of the present disclosure, a corresponding signal processing method is conceived. According to a third aspect of the present disclosure, a corresponding computer program is provided.
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公开(公告)号：US20160302074A1
公开(公告)日：2016-10-13
申请号：US14683367
申请日：2015-04-10
Applicant: NXP B.V.
Inventor： Andries Hekstra , Stefan Drude , Frank Leong , Arie Koppelaar
IPC: H04W12/10 , H04L9/00 , H04B1/7097
CPC classification number: H04L9/00 , H04B1/692 , H04B1/71632 , H04B10/116 , H04B2201/70715 , H04L63/0435 , H04L63/1466
Abstract: Various exemplary embodiments relate to a method of communicating by a transmitter. Embodiments of the method may include creating information to be used by a receiver to define a spreading sequence for a subsequent packet, coding the information into a current communications packet, and transmitting the current communications packet.
Abstract translation: 各种示例性实施例涉及由发射机进行通信的方法。 该方法的实施例可以包括创建要由接收机使用的信息来定义用于后续分组的扩展序列，将该信息编码为当前通信分组，以及发送当前通信分组。
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公开(公告)号：US09300353B1
公开(公告)日：2016-03-29
申请号：US14683455
申请日：2015-04-10
Applicant: NXP B.V.
Inventor： Andries Hekstra , Stefan Drude , Frank Leong , Arie Koppelaar
IPC: H04B1/00 , H04B1/7073 , H04B1/709 , H04L29/06
CPC classification number: H04B1/70735 , H04B1/709 , H04B2201/7073 , H04J13/00 , H04L1/0083 , H04L1/08
Abstract: Various exemplary embodiments relate to a device for performing a method of communication transmission. The device may include a memory; a processor configured to: determine a spreading code with low sidelobe levels in its autocorrelation sequence to be used; create a Start of Frame Delimiter (SOFD) for a packet including the spreading code and a cyclic prefix, wherein the cyclic prefix is a portion of the spreading code; and transmit the packet with the SOFD.
Abstract translation: 各种示例性实施例涉及用于执行通信传输方法的设备。 该设备可以包括存储器; 处理器，其被配置为：在其要使用的自相关序列中确定具有低旁瓣电平的扩展码; 为包括扩展码和循环前缀的分组创建起始帧定界符（SOFD），其中循环前缀是扩展码的一部分; 并用SOFD发送数据包。
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公开(公告)号：US20160056950A1
公开(公告)日：2016-02-25
申请号：US14468317
申请日：2014-08-25
Applicant: NXP B.V.
Inventor： Frank Leong , Andries Hekstra , Arie Koppelaar , Stefan Drude
CPC classification number: H04L7/0037 , G06K7/10237 , G06K19/07766 , H04B5/00 , H04J3/0682 , H04L7/0012 , H04L43/0864 , H04W4/023 , H04W4/80 , H04W56/00
Abstract: Aspects of the present disclosure provide communications between local and remote devices having low-frequency (LF) and high-frequency (HF) circuits. As may be implemented in accordance with one or more embodiments, the local device transmits an LF signal to the remote device, which synchronizes its clock based on the LF signal. Another LF signal is communicated from the local device to the remote device using a reduced quality factor, which can be implemented to facilitate synchronization. The clock is resynchronized based on the second LF signal and used to transmit an HF signal with a time delay. The local device synchronizes its clock based on the HF signal, and transmits another HF signal to the remote device using the clock and another time delay. The remote device re-synchronizes its clock based on the second HF signal while accounting for a trip time for communicating the first and/or second HF signals.
Abstract translation: 本公开的方面提供具有低频（LF）和高频（HF）电路的本地和远程设备之间的通信。 如可以根据一个或多个实施例来实现的，本地设备向远程设备发送LF信号，该远程设备基于LF信号同步其时钟。 另一个LF信号使用降低的品质因子从本地设备传送到远程设备，这可以被实现以促进同步。 基于第二LF信号重新同步时钟，并用于以时间延迟发送HF信号。 本地设备基于HF信号同步其时钟，并使用时钟和另一个时间延迟将另一个HF信号发送到远程设备。 远程设备基于第二HF信号重新同步其时钟，同时考虑用于传送第一和/或第二HF信号的跳闸时间。
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公开(公告)号：US09160519B1
公开(公告)日：2015-10-13
申请号：US14468006
申请日：2014-08-25
Applicant: NXP B.V.
Inventor： Frank Leong , Andries Hekstra , Arie Koppelaar , Stefan Drude
CPC classification number: H04W56/002 , H04J3/0682 , H04L43/0864 , H04W4/023 , H04W4/80 , H04W12/06
Abstract: Aspects of the present disclosure are directed to communications between devices. As consistent with one or more embodiments, a local device has a first clock, a low-frequency (LF) transmitter and a high-frequency (HF) transceiver. A remote device includes a second clock, a LF receiver and a HF transceiver. An LF signal is transmitted from the local device to the remote device and used to synchronize the second clock. The first clock is synchronized based on an HF signal transmitted to the local device using the synchronized second clock and a first predetermined time delay relative to receipt of the LF signal. The second clock is re-synchronized based on a second HF signal transmitted to the remote device using the first clock and a second predetermined time delay relative to receipt of the first HF signal, while accounting for a trip time for communicating one or both of the HF signals.
Abstract translation: 本公开的方面涉及设备之间的通信。 与一个或多个实施例一致，本地设备具有第一时钟，低频（LF）发射机和高频（HF）收发器。 远程设备包括第二时钟，LF接收机和HF收发器。 LF信号从本地设备发送到远程设备，并用于同步第二个时钟。 基于使用同步的第二时钟发送到本地设备的HF信号和相对于LF信号的接收的第一预定时间延迟，第一时钟被同步。 基于使用第一时钟发送到远程设备的第二HF信号和相对于接收到第一HF信号的第二预定时间延迟来重新同步第二时钟，同时考虑到用于传送第一时钟中的一个或两个 HF信号。
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