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公开(公告)号：US10944552B2
公开(公告)日：2021-03-09
申请号：US16013783
申请日：2018-06-20
Applicant: NXP B.V.
Inventor： Frank Leong , Hugues Jean Marie De Perthuis , Wolfgang Küchler
Abstract: A method for operating system to transmit a plurality of frames from a first communication device to a second communication device is disclosed. The method incudes generating a security-sequence using a security-sequence-counter-value, changing the security-sequence-counter-value to a new security-sequence-counter-value; encrypting, at the first communication device, the security-sequence using a first-derived-session-key to provide an encrypted-security-sequence-counter-value; providing, at the first communication device, a frame comprising the security-sequence and encrypted-security-sequence-counter-value, transmitting a first-type frame from the first communication device to the second communication device, decrypting the encrypted-security-sequence-counter-value using the first-derived-session-key to provide the security-sequence-counter-value, configuring a security-sequence detector to detect a security-sequence using the security-sequence-counter-value, setting a key-validity-counter-value in accordance with the number of first-type frames transmitted since the first-derived-session-key was updated; and updating the first-derived-session-key based on a master-session-key in response to the key-validity-counter-value reaching an update value.
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公开(公告)号：US10715355B2
公开(公告)日：2020-07-14
申请号：US15611014
申请日：2017-06-01
Applicant: NXP B.V.
Inventor： Thomas Baier , Wolfgang Küchler , Frank Leong
Abstract: A processing module for a receiver device. The processor module comprises a channel estimate generation component arranged to output channel estimate information for a received signal, and a timestamping module arranged to determine a ToA measurement for a marker within a packet of the received signal based at least partly on the channel estimate information for the received signal generated by the channel estimate generation component. The channel estimate generation component comprises a validation component arranged to derive a validation pattern for the packet within the received signal for which a ToA measurement is to be determined, identify a section of the packet containing a validation sequence, and perform cross-correlation between at least a part of the validation sequence within the packet and at least a part of the generated validation pattern to generate channel estimate validation information.
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公开(公告)号：US09401724B1
公开(公告)日：2016-07-26
申请号：US14836823
申请日：2015-08-26
Applicant: NXP B.V.
Inventor： Yuan Gao , Frank Leong , Robert Bogdan Staszewski
CPC classification number: H03L7/18 , H03B1/00 , H03B5/06 , H03B5/08 , H03B5/1212 , H03B5/1228 , H03B5/1243 , H03B2200/004 , H03B2200/0076 , H03B2200/0094 , H03L3/00 , H03L5/00 , H03L7/099 , H03L2207/50
Abstract: A frequency synthesizer device provides amplitude control. Using switch circuit operating in a first mode, a charge voltage is applied to an oscillator circuit that an inductive-capacitive (LC) tank circuit. The LC tank circuit has a capacitive element, and an inductive element that is connected to the capacitive element. Using the switch circuit operating in a second mode, the LC tank circuit is enabled to oscillate. Using driver circuits that are response to a voltage applied to the tank circuit, current is reinforced in the LC tank, and the reinforcement is based upon a transconductance gain of the driver circuits. Using a calibration circuit, an amplitude of an output signal from the oscillator circuit is detected. In response to the detected amplitude, the transconductance gain is adjusted by enabling or disabling auxiliary circuits from plurality of auxiliary circuits.
Abstract translation: 频率合成器装置提供幅度控制。 使用在第一模式下操作的开关电路，将充电电压施加到电感 - 电容（LC）电路的振荡器电路。 LC槽电路具有电容元件和连接到电容元件的电感元件。 使用在第二模式下操作的开关电路，LC振荡电路能够振荡。 使用响应于施加到储能电路的电压的驱动电路，LC箱中的电流被增强，并且加强是基于驱动电路的跨导增益。 使用校准电路，检测来自振荡电路的输出信号的振幅。 响应于检测到的幅度，通过启用或禁用来自多个辅助电路的辅助电路来调节跨导增益。
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公开(公告)号：US09143150B1
公开(公告)日：2015-09-22
申请号：US14467947
申请日：2014-08-25
Applicant: NXP B.V.
Inventor： Frank Leong , Andries Hekstra , Arie Koppelaar , Stefan Drude
CPC classification number: H03M1/1255 , H03M1/00 , H03M1/12 , H03M1/365
Abstract: Aspects of the preset disclosure are directed to processing an analog signal transmitted during active portions of a duty cycle. As may be implemented in accordance with one or more embodiments, an apparatus includes a high-speed sampling circuit that samples portions of such an analog signal at a first rate corresponding to the active portion of the duty cycle, and stores the sampled portions of the analog signal. A low-speed analog-to-digital converter accesses the stored sampled portions and converts the sampled portions to a digital form at a second rate that is slower than the first rate.
Abstract translation: 预设公开的方面旨在处理在占空比的有效部分期间发送的模拟信号。 如可以根据一个或多个实施例实现的，装置包括高速采样电路，其以对应于占空比的有效部分的第一速率对这样的模拟信号的部分进行采样，并存储采样部分 模拟信号。 低速模数转换器访问存储的采样部分，并以比第一速率慢的第二速率将采样部分转换成数字形式。
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公开(公告)号：US12273835B2
公开(公告)日：2025-04-08
申请号：US17651949
申请日：2022-02-22
Applicant: NXP B.V.
Inventor： Michael Schober , Frank Leong , Dominik Doedlinger
IPC: H04W56/00 , H04W12/122
Abstract: In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: a communication unit configured to execute a time-of-flight ranging session with an external communication counterpart; a clock offset measurement unit configured to measure a frequency offset of a device clock, wherein said device clock is configured to be used by the communication unit when said ranging session is executed; a processing unit configured to determine whether the measured frequency offset of the device clock has a predefined correlation with a frequency offset of a counterpart clock, wherein said counterpart clock is configured to be used by the external communication counterpart when said ranging session is executed. In accordance with a second aspect of the present disclosure, a corresponding method of operating a communication device is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.
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Patent Agency Ranking
公开(公告)号：US11503591B2
公开(公告)日：2022-11-15
申请号：US17018313
申请日：2020-09-11
Applicant: NXP B.V.
Inventor： Hugues Jean Marie de Perthuis , Frank Leong
Abstract: A method is described for transmitting a payload between a mobile device and a plurality of anchor devices via a ranging-capable physical layer, in particular an ultra-wide band (UWB), communication. The method comprises: i) transmitting, by the mobile device, a first message to a first anchor device and to a second anchor device, wherein the first message comprises a synchronization protocol, ii) establishing, upon receiving the first message, a first time slot for the first anchor device and a second time slot for the second anchor device based on the synchronization protocol, iii) transmitting, by the mobile device, a second message to the first anchor device and/or to the second anchor device, wherein the second message comprises a mobile device payload, iv) transmitting, upon receiving the second message by the first anchor device, a third message to the mobile device during the first time slot by the first anchor device, wherein the third message comprises a target device payload, and/or v) transmitting, upon receiving the second message by the second anchor device, the third message to the mobile device during the second time slot by the second anchor device.
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公开(公告)号：US20220295430A1
公开(公告)日：2022-09-15
申请号：US17651949
申请日：2022-02-22
Applicant: NXP B.V.
Inventor： Michael Schober , Frank Leong , Dominik Doedlinger
IPC: H04W56/00
Abstract: In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: a communication unit configured to execute a time-of-flight ranging session with an external communication counterpart; a clock offset measurement unit configured to measure a frequency offset of a device clock, wherein said device clock is configured to be used by the communication unit when said ranging session is executed; a processing unit configured to determine whether the measured frequency offset of the device clock has a predefined correlation with a frequency offset of a counterpart clock, wherein said counterpart clock is configured to be used by the external communication counterpart when said ranging session is executed. In accordance with a second aspect of the present disclosure, a corresponding method of operating a communication device is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.
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8.发明申请公开(公告)号：US20210377741A1
公开(公告)日：2021-12-02
申请号：US17302275
申请日：2021-04-29
Applicant: NXP B.V.
Inventor： Hugues Jean Marie de Perthuis , Frank Leong , Sören Heisrath , Srivathsa Masthi Parthasarathi
IPC: H04W12/64 , H04W12/041 , H04W12/069 , H04W60/04
Abstract: There is described a system and method of committing a transaction within a UWB network comprising a plurality of anchors, the UWB network covering a predetermined area having at least one trigger area, the method comprising waking up a mobile device upon entering the predetermined area, receiving initial network data at the mobile device, verifying that the UWB network is genuine based on the initial network data, initiating communication between the mobile device and an anchor, including partial mutual authentication, generating a session key for secure communication between the mobile device and the UWB network, tracking the location of the mobile device within the predetermined area based on secure communication between the mobile device and one or more anchors within the UWB network using the session key, and committing the transaction, if the location of the mobile device is within the at least one trigger area.
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公开(公告)号：US10903868B2
公开(公告)日：2021-01-26
申请号：US16718061
申请日：2019-12-17
Applicant: NXP B.V.
Inventor： Hugues Jean Marie de Perthuis , Frank Leong , Sören Heisrath , Diwakar Subraveti , Srivathsa Masthi Parthasarathi
IPC: H04B1/3822 , H04W4/02 , H04W4/021 , G01S13/74 , G07C9/00
Abstract: Disclosed is a RF system (100) having at least one transceiver node device (110, 112, 114, 116, 118, 120) that is capable to assume, at a controllable point in time and/or for a controllable time period, each one of the following roles (210, 220, 230, 240): a first role (210) comprising listening or answering to a message from an active communication session, in particular ranging sessions, a second role (220) comprising listening for new communication sessions, in particular ranging sessions, a third role (230) comprising staying idle, and optionally a third role (230) comprising scanning for ongoing communication sessions, in particular ranging sessions, of other RF systems. The RF system (100) further comprises a controller device (134) communicatively interlinked with the at least one, in particular each, transceiver node device (110, 112, 114, 116, 118, 120) and capable to control an assignment of roles to the at least one, in particular each, transceiver node device, in particular to control for a transceiver node device a point in time to assume a role and/or a duration of performing a role and/or a duty cycle of performing a role (210, 220, 230, 240).
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公开(公告)号：US10782397B2
公开(公告)日：2020-09-22
申请号：US15921352
申请日：2018-03-14
Applicant: Continental Automotive GmbH , Bayerische Motoren Werke AG , NXP B.V.
Inventor： Thomas Reisinger , Stefan Haller , Daniel Knobloch , Wolfgang Kuechler , Frank Leong
Abstract: The disclosure relates to an approximate determination of a distance between a wireless key which is assigned to a motor vehicle and a transceiver arrangement which is disposed in or on the motor vehicle. In the course of a ranging cycle, a first first path relating to a first threshold value and a second first path relating to a higher, second threshold value are calculated. Two distances are estimated on the basis of this dual first path calculation.
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