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公开(公告)号：US11757491B2
公开(公告)日：2023-09-12
申请号：US17647285
申请日：2022-01-06
Applicant: NXP B.V.
Inventor： Markus Wobak , Johannes Stahl , Ulrich Andreas Muehlmann
CPC classification number: H04B5/0031 , H04B1/408 , H04B1/525 , H04B5/0043 , H04B5/0062
Abstract: In accordance with a first aspect, a communication device is provided, comprising: a transmitter configured to transmit one or more radio frequency signal pulses to an external communication device; a receiver configured to receive one or more response signals in response to the radio frequency signal pulses transmitted by the transmitter; a signal analyzer configured to detect one or more characteristics of the response signals, to compare the detected characteristics with predefined reference characteristics and to generate an output indicative of a result of comparing the detected characteristics with the predefined reference characteristics; a processing unit configured to determine at least one category to which the external communication device belongs based on the output generated by the signal analyzer. In accordance with a second aspect, a corresponding method of operating a communication device is conceived. In accordance with a third aspect, a corresponding computer program is provided.
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公开(公告)号：US11588668B2
公开(公告)日：2023-02-21
申请号：US17232379
申请日：2021-04-16
Applicant: NXP B.V.
Inventor： Ulrich Andreas Muehlmann , Wolfgang Hrauda , Gregor Hauseder , Tim Daniel Raspel
Abstract: In accordance with a first aspect of the present disclosure, a channel equalizer is provided for use in a near field communication (NFC) device, the channel equalizer comprising: a filter configured to receive an input signal and to generate a filtered output signal; an estimator configured to determine filter coefficients to be used by said filter; a synchronizer configured to determine when to enable the channel equalizer and to provide one or more corresponding control signals to the estimator. In accordance with a second aspect of the present disclosure, a corresponding method of operating a channel equalizer for use in a near field communication (NFC) device is conceived.
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公开(公告)号：US11516621B2
公开(公告)日：2022-11-29
申请号：US17182317
申请日：2021-02-23
Applicant: NXP B.V.
Inventor： Ghiath Al-kadi , Ulrich Andreas Muehlmann , Michael Schober
IPC: H04W4/02
Abstract: In accordance with a first aspect of the present disclosure, a localization device is provided, comprising: an ultra-wideband, UWB, communication unit configured to transmit a localization signal to an external device and to receive a response signal from the external device; an angle of arrival measurement unit configured to measure an angle at which the response signal is received; an orientation sensor configured to sense an orientation of the localization device; and a processing unit configured to determine if an angle at which the localization signal is received by the external device, an orientation of the external device, said orientation of the localization device, and said angle at which the response signal is received meet a predefined relationship. In accordance with a second aspect of the present disclosure, a corresponding method of operating a localization device is conceived.
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公开(公告)号：US20220231897A1
公开(公告)日：2022-07-21
申请号：US17647397
申请日：2022-01-07
Applicant: NXP B.V.
Inventor： Johannes Stahl , Ulrich Andreas Muehlmann
Abstract: In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: a receiver configured to receive one or more signals from an external communication device; a classifier configured to classify the external communication device using the signals received by the receiver and to output a corresponding classification result; and a processing unit configured to change one or more configuration settings of the communication device in dependence on the classification result. 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：US11385320B2
公开(公告)日：2022-07-12
申请号：US17027909
申请日：2020-09-22
Applicant: NXP B.V.
Inventor： Ghiath Al-kadi , Ulrich Andreas Muehlmann , Michael Schober
Abstract: In accordance with a first aspect of the present disclosure, a localization system is provided for determining a geographic location of a movable object, the system comprising: a plurality of anchors, wherein each anchor is configured to receive a broadcasted message through an ultra-wideband communication channel; a processing unit configured to determine the geographic location based on differences between the times of arrival of the broadcasted message at the respective anchors, on relative positions of the anchors and on a predetermined orientation of the movable object.
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46.发明申请公开(公告)号：US20220166463A1
公开(公告)日：2022-05-26
申请号：US17452806
申请日：2021-10-29
Applicant: NXP B.V.
Inventor： Johannes Stahl , Ulrich Andreas Muehlmann , Adrian Rafael Krenn
Abstract: There is described a method of determining a phase value for an NFC card emulating device that enables said NFC card emulating device to communicate in phase with an NFC reader device while utilizing active load modulation, wherein the NFC card emulating device comprises a card antenna and the NFC reader device comprises a reader antenna, the method comprising receiving a reader signal from the NFC reader device at the NFC card emulating device through coupling of the card antenna and the reader antenna, the reader signal comprising a subcarrier modulation; estimating a resonance frequency of a system corresponding to the coupled card antenna and reader antenna based on the received communication signal; and determining the phase value based on the estimated resonance frequency and a set of parameters that represents a predetermined reference system. Furthermore, an NFC card emulating device, an NFC system, and a computer program are described.
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公开(公告)号：US10992504B2
公开(公告)日：2021-04-27
申请号：US16246297
申请日：2019-01-11
Applicant: NXP B.V.
Inventor： Lukas Zoescher , Erich Merlin , Ulrich Andreas Muehlmann
Abstract: In accordance with a first aspect of the present disclosure, an active load modulation (ALM) transceiver is provided, comprising a transmitter configured to send a transmit signal to an external device, wherein the transceiver is configured to adjust one or more parameters of the transmit signal at the end of at least one burst of said transmit signal. In accordance with a second aspect of the present disclosure, a method of operating an active load modulation (ALM) transceiver is conceived, comprising sending, by a transmitter of the transceiver, a transmit signal to an external device, and adjusting, by the transceiver, one or more parameters of the transmit signal at the end of at least one burst of said transmit signal.
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公开(公告)号：US10367667B2
公开(公告)日：2019-07-30
申请号：US15719687
申请日：2017-09-29
Applicant: NXP B.V.
Inventor： Ulrich Andreas Muehlmann , Ulrich Neffe
Abstract: Various embodiments relate to a method for classifying received radio frequency signals, including: receiving an input signal; matched filtering the input signal to produce a correlation result signal; sampling the correlation result signal at a plurality of half-bit-grids and a plurality of bit-grids to produce a set of modulated phase correlation result samples and a set of non-modulated phase correlation result samples; calculating a minimum of the set of modulated phase correlation result samples; calculating a maximum of the set of non-modulated phase correlation result samples; and classifying the input signal as valid data or collision data based on the minimum and the maximum.
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公开(公告)号：US20190215203A1
公开(公告)日：2019-07-11
申请号：US16246297
申请日：2019-01-11
Applicant: NXP B.V.
Inventor： Lukas Zoescher , Erich Merlin , Ulrich Andreas Muehlmann
CPC classification number: H04L27/20 , H04B1/38 , H04B5/0031 , H04B5/0062 , H04L7/02
Abstract: In accordance with a first aspect of the present disclosure, an active load modulation (ALM) transceiver is provided, comprising a transmitter configured to send a transmit signal to an external device, wherein the transceiver is configured to adjust one or more parameters of the transmit signal at the end of at least one burst of said transmit signal. In accordance with a second aspect of the present disclosure, a method of operating an active load modulation (ALM) transceiver is conceived, comprising sending, by a transmitter of the transceiver, a transmit signal to an external device, and adjusting, by the transceiver, one or more parameters of the transmit signal at the end of at least one burst of said transmit signal.
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