-
公开(公告)号：US20200226865A1
公开(公告)日：2020-07-16
申请号：US16737167
申请日：2020-01-08
Applicant: NXP B.V.
Inventor： Hugues Jean Marie de Perthuis , Frank Leong , Diwakar Subraveti , Sören Heisrath , Srivathsa Masthi Parthasrathi
IPC: G07C9/20 , H04B1/7103 , G07C9/00 , G01S13/76
Abstract: An Ultra-Wideband (UWB) wireless communication device includes a scanning circuit, an ordering circuit, and a selecting circuit. The scanning circuit is configured for scanning at least a channel supported by the communication device for detecting a plurality of patterns of a UWB frame format. The ordering circuit is configured for ordering the plurality of patterns in a patterns list according to a predefined quality parameter. The selecting circuit is configured for selecting at least one of the patterns in the list to start an Ultra Wideband (UWB) wireless communications.
-
公开(公告)号：US20180248738A1
公开(公告)日：2018-08-30
申请号：US15871542
申请日：2018-01-15
Applicant: NXP B.V.
Inventor： Marinus van Splunter , Arie Geert Cornelis Koppelaar , Frank Leong
CPC classification number: H04L27/2695 , G01S13/0209 , G01S13/08 , G01S13/765 , G01S13/825 , G01S13/84 , G07C9/00309 , H04L27/2659 , H04L27/266 , H04L27/2662 , H04L27/2675 , H04L2027/0026 , H04L2027/0095
Abstract: An apparatus is configured to, based on a first signal comprising one or more data transmission frames received from a first radio device by a second radio device. The first signal has a particular carrier frequency of a carrier wave thereof and the one or more data transmission frames comprising a plurality of symbols provided at a particular symbol frequency. The carrier frequency and symbol frequency based on a reference clock frequency of the first radio device. One or more of an estimate of the particular carrier frequency is determined and an estimate of the particular symbol frequency relative to a reference clock frequency of the second radio device and provide for transmission of a response signal from the second radio device to the first radio device.
-
13.发明授权公开(公告)号：US11812274B2
公开(公告)日：2023-11-07
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: H04W60/04 , H04W12/64 , H04W12/069 , H04W12/041
CPC classification number: 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.
-
公开(公告)号：US10805092B2
公开(公告)日：2020-10-13
申请号：US15898998
申请日：2018-02-19
Applicant: NXP B.V.
Inventor： Jan Dutz , Wolfgang Küchler , Frank Leong , Thomas Baier , Arie Geert Cornelis Koppelaar
Abstract: A processing module for a first lock device of a range determination system, the range determination system comprising a lock group comprising a plurality of lock devices of which the first lock device forms part, the plurality of lock devices physically spaced over a lockable element and configured to communicate with a key group comprising a plurality of key devices, a shortest distance between any one of the key devices of the key group and any one of the lock devices of the lock group providing for access to the lockable element relative to a threshold distance.
-
公开(公告)号：US20190222443A1
公开(公告)日：2019-07-18
申请号：US16360945
申请日：2019-03-21
Applicant: NXP B.V.
Inventor： Thomas Baier , Wolfgang Küchler , Frank Leong
CPC classification number: H04L25/0202 , G01S5/0215 , G01S13/765 , H04J3/0608 , H04L7/042 , H04L7/043 , H04L9/3236 , H04L25/0212 , H04L25/0224
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.
-
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.
-
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.
Inventor： Zoran Zivkovic , Frank Leong
CPC classification number: H04L63/04 , G01S13/74 , G07C9/00309 , G07C2009/00388 , G07C2009/00555 , G07C2209/63 , H04L27/2627 , H04W12/06
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.
-
公开(公告)号：US20170063387A1
公开(公告)日：2017-03-02
申请号：US14836797
申请日：2015-08-26
Applicant: NXP B.V.
Inventor： Yuan Gao , Frank Leong , Robert Bogdan Staszewski
CPC classification number: H03L7/1974 , H03B5/06 , H03B5/1212 , H03B5/1228 , H03B5/1234 , H03B5/124 , H03B5/1268 , H03K5/131 , H03K2005/00058 , H03L3/00 , H03L5/00 , H03L7/099 , H03L7/0992 , H03L7/18 , H03L2207/06 , H03L2207/50
Abstract: A radio frequency (RF) signal can be produced with an RF frequency that is responsive to a frequency reference (FREF) clock. An inductive-capacitive (LC) tank oscillator circuit can generate the RF signal. A digital to time converter (DTC) circuit can operate, for a first edge of the FREF clock, in a baseline mode that has a first delay, and for a subsequent edge of the FREF clock, in a delay mode that introduces a second delay value to the FREF clock. A controller circuit can enable the LC-tank oscillator circuit in response to a first edge of the FREF clock and to set or increase the second delay value of the delay mode as a function of the frequency of the RF signal. A phase detector circuit can detect, for the subsequent edge of the FREF clock, a phase difference between the FREF clock and the RF signal.
Abstract translation: 射频（RF）信号可以产生具有响应于频率参考（FREF）时钟的RF频率。 电感电容（LC）振荡电路可以产生RF信号。 对于FREF时钟的第一边缘，数字到时间转换器（DTC）电路可以在具有第一延迟的基线模式中以及在FREF时钟的后续边沿处以引入第二延迟的延迟模式 值到FREF时钟。 控制器电路可以响应于FREF时钟的第一边缘而使LC-槽振荡器电路能够设置或增加作为RF信号的频率的函数的延迟模式的第二延迟值。 相位检测器电路可以检测FREF时钟的后续边沿FREF时钟和RF信号之间的相位差。
-
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。
-
公开(公告)号：US09350375B1
公开(公告)日：2016-05-24
申请号：US14685501
申请日：2015-04-13
Applicant: NXP B.V.
Inventor： Yu Lin , Frank Leong , Konstantinos Doris
CPC classification number: H03M1/12 , H03M1/1215 , H03M1/1265
Abstract: Methods and systems for performing analog-to-digital conversion are described. In one embodiment, a method for performing analog-to-digital conversion involves processing an analog impulse signal to obtain an impulse pattern of the analog impulse signal in a first signal processing path and converting the analog impulse signal into a digital signal based on the impulse pattern in a second signal processing path that is in parallel with the first signal processing path. The impulse pattern of the analog impulse signal includes duty cycle information of the analog impulse signal. Other embodiments are also described.
Abstract translation: 描述用于执行模数转换的方法和系统。 在一个实施例中，用于执行模数转换的方法涉及处理模拟脉冲信号以在第一信号处理路径中获得模拟脉冲信号的脉冲模式，并且基于脉冲将模拟脉冲信号转换为数字信号 在与第一信号处理路径并联的第二信号处理路径中的图案。 模拟脉冲信号的脉冲模式包括模拟脉冲信号的占空比信息。 还描述了其它实施例。
-
-
-
-
-
-
-
-
-
Search Results
54
records
(took 0.017 seconds)
