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11.发明授权公开(公告)号：US12238749B2
公开(公告)日：2025-02-25
申请号：US17658451
申请日：2022-04-08
Applicant: NXP B.V.
Inventor： Vincent Pierre Martinez , Cornelis Marinus Moerman , Rui Cao
Abstract: Aspects of the present disclosure are directed to communicating signals to receivers utilizing different protocols. As may be implemented in accordance with one or more embodiments, a set of signals are generated to include data configured in accordance with a first protocol and data configured in accordance with a second protocol. The set of signals are communicated over the wireless channel, by using the data corresponding to the first protocol for communicating with receivers operating in accordance with the first protocol and using the data corresponding to the second protocol to communicate with receivers operating in accordance with the second protocol.
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公开(公告)号：US12137010B2
公开(公告)日：2024-11-05
申请号：US17661762
申请日：2022-05-03
Applicant: NXP B.V.
Inventor： Klaas Brink , Vincent Pierre Martinez , Cornelis Marinus Moerman
Abstract: A battery pack comprises an enclosure; a plurality of network nodes that communicate with each other inside the enclosure and that generate a unique radio frequency (RF) signature; and a special-purpose computer processor that compares an incoming channel impulse response (CIR) of the unique radio frequency (RF) signature corresponding to an incoming packet to a plurality of stored valid RF CIR signatures and executes a resemblance metric to accept or reject the incoming packet.
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公开(公告)号：US11677504B2
公开(公告)日：2023-06-13
申请号：US17006998
申请日：2020-08-31
Applicant: NXP B.V.
Inventor： Vincent Pierre Martinez , Artur Tadeusz Burchard , Alessio Filippi
CPC classification number: H04L1/08 , H04L1/008 , H04L5/0044 , H04L5/0094 , H04L69/22 , H04W4/40
Abstract: Aspects of the present disclosure are directed to use with communications that may involve repetitive communications. As may be implemented in accordance with one or more embodiments, a subset of symbols in a current data message (130/131) are used with a corresponding subset of symbols in a previous data message (120/121), to ascertain whether the current data message is a repetition of the previous data message. This may involve, for instance, generating a resemblance metric to represent semblance between a subset the data symbols of the current data message and a subset the data symbols of the previous data message (102). The resemblance metric can be used in determining whether the current data message is a repetition of the previous data message. This approach may be useful, for example, in ascertaining whether the current message is a repetition without necessarily decoding the message.
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公开(公告)号：US20230123869A1
公开(公告)日：2023-04-20
申请号：US18046517
申请日：2022-10-14
Applicant: NXP B.V.
IPC: G01R31/3832 , G01R31/367
Abstract: A battery management system for tracking a state of charge of a battery including multiple cells including a coulomb counter (CC) estimator and an artificial intelligence (AI) estimator. The CC estimator determines a charge difference over time for tracking changes of a state of charge of each cell and updates a corresponding state of charge value. The AI estimator converts a set of sample values of a cell into an estimated state of charge for calibrating the cell. A controller may periodically invoke the AI estimator to calibrate the state of charge of each cell and to update a corresponding state of charge value. Processing by the AI estimator may be minimized by being used only to calibrate each cell before combined error of the CC estimator reaches a predetermined threshold. AI based calibration may use Long Short-Term Memories and may further incorporate voltage mean and voltage variance over time.
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公开(公告)号：US20210385871A1
公开(公告)日：2021-12-09
申请号：US17336676
申请日：2021-06-02
Applicant: NXP B.V.
Inventor： Vincent Pierre Martinez , Marnix Claudius Vlot , Alessio Filippi , Cornelis Marinus Moerman
Abstract: In connection with an RF communication system, exemplary aspects involve a method for use in a communication system in which a first system (e.g., 802.11) that is asynchronously based and which is susceptible to interference from a second system (e.g., synchronous-based LTE-CV2X). Such interference is due to the frequency spectrum used by the first and second systems overlapping. To mitigate interference issues, example methods spreads out the times for messages in the first system, based on information concerning occupancy of the channel, and transmitting them relative to the end of a cycled transmission allocated for use by the second system.
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Patent Agency Ranking
公开(公告)号：US10893433B2
公开(公告)日：2021-01-12
申请号：US16451745
申请日：2019-06-25
Applicant: NXP B.V.
Inventor： Vincent Pierre Martinez , Alessio Filippi
Abstract: Embodiments are directed to methods and apparatuses for wireless vehicular communications involving retransmission of messages. A method for communicating by vehicular communications circuitry of a device includes, in a wireless communications network in which a message is broadcasted by vehicular communications circuitry of a device for asynchronous receptions by other circuitry in one or more devices configured to wirelessly communicate according to a communications protocol, monitoring a channel busy ratio associated with channels in a designated range of frequency pertaining to the wireless communications network. The method further includes assessing whether to retransmit the message as a function of the channel busy ratio, and in response to the channel busy ratio being outside a threshold, retransmitting the message according to the communications protocol.
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公开(公告)号：US10284410B1
公开(公告)日：2019-05-07
申请号：US16114665
申请日：2018-08-28
Applicant: NXP B.V.
Inventor： Vincent Pierre Martinez
Abstract: Aspects of the present disclosure are directed to processing signals received from different sources, such as may be relevant to receiving signals having respective time-offsets based upon a distance via which the respective signals travel, and/or due to an oscillator clock mismatch. As may be implemented in accordance with one or more embodiments, respective fast Fourier transform (FFT) series are generated for symbols in respective ones of communications received in parallel. For each message that the receiver is trying to decode, channel estimation is performed on the respective FFT series, and one of the FFT series is selected based upon metrics indicative of interference in the respective FFT series, for that particular message. A decoding timing window is set based on the selected FFT series, and the selected FFT series is decoded.
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公开(公告)号：US11778667B2
公开(公告)日：2023-10-03
申请号：US17336676
申请日：2021-06-02
Applicant: NXP B.V.
Inventor： Vincent Pierre Martinez , Marnix Claudius Vlot , Alessio Filippi , Cornelis Marinus Moerman
CPC classification number: H04W74/0833 , H04L5/0053 , H04L27/2666 , H04W72/0453
Abstract: In connection with an RF communication system, exemplary aspects involve a method for use in a communication system in which a first system (e.g., 802.11) that is asynchronously based and which is susceptible to interference from a second system (e.g., synchronous-based LTE-CV2X). Such interference is due to the frequency spectrum used by the first and second systems overlapping. To mitigate interference issues, example methods spreads out the times for messages in the first system, based on information concerning occupancy of the channel, and transmitting them relative to the end of a cycled transmission allocated for use by the second system.
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公开(公告)号：US11652723B2
公开(公告)日：2023-05-16
申请号：US17006982
申请日：2020-08-31
Applicant: NXP B.V.
Inventor： Artur Tadeusz Burchard , Vincent Pierre Martinez , Alessio Filippi
Abstract: Aspects of the present disclosure are directed to ascertaining whether data messages are repetitions of a previous data message. As may be implemented in accordance with one or more embodiments characterized herein, data packets (130/131) are received (102) and which use a first time delay relative to transmission of a previous data packet (120/121) by a different transmitter. Repetitions (110A/111A) of data packets are also received (102), and which use a second time delay relative to transmission of a previous data packet (110/111) by the same transmitter. The second time delay is less than the first time delay. The received packet is identified (102) as being a repetition of an immediately-previous data packet based on a time delay between the data packet and the immediately-previous data packet, relative to the first and second time delays.
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公开(公告)号：US20230023302A1
公开(公告)日：2023-01-26
申请号：US17749201
申请日：2022-05-20
Applicant: NXP B.V.
Inventor： Sylvain Roudiere , Vincent Pierre Martinez , Didier Salle
IPC: G01S7/02 , G01S13/931
Abstract: A mechanism is provided to reduce interference between vehicular radar systems through communicating radar parameters and physical orientation between vehicles and then using directional information to form clusters of radars, which will have consistent modulation parameters. Radar modulation parameters, such as starting frequency, center frequency, bandwidth, slope, ramp direction, timing, and the like for frequency-modulated continuous-wave (FMCW) radars, are adjusted to reduce or eliminate inter-cluster direct interference between clusters oriented in different directions. For other types of radars, in some embodiments, other operational parameters can be adjusted. In some embodiments, some modulation parameters also can be adjusted to reduce or eliminate intra-cluster indirect interference.
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