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公开(公告)号：US09939496B2
公开(公告)日：2018-04-10
申请号：US14716595
申请日：2015-05-19
Applicant: NXP B.V.
Inventor： Edwin Schapendonk , Pieter Van Der Zee , Fabio Sebastiano , Robert Van Veldhoven
CPC classification number: G01R33/0023 , G01D5/145 , G01D5/16 , G01D18/004 , G01R33/09
Abstract: A sensor system is disclosed. The sensor system includes a first sensor path comprising a first sensing element and a second sensing element being connected in series between a first supply terminal and a second supply terminal and an intermediate node connected in between the first supply terminal and the second supply terminal, a second sensor path comprising a third sensing element and a fourth sensing element connected in series between the first supply terminal and the second supply terminal, a first reference node connected in between the first supply terminal and the second supply terminal, and a second reference node connected in between the first supply terminal and the second supply terminal, and a processing unit to receive an input signal from the intermediate node, a first reference signal from the first reference node, and a second reference signal from the second reference node.
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公开(公告)号：US12135358B2
公开(公告)日：2024-11-05
申请号：US18066525
申请日：2022-12-15
Applicant: NXP B.V.
IPC: G01R31/389 , G01R31/3842 , G01R31/396
Abstract: An apparatus and method for measuring energy cell impedance. Time sequences representing each of a repetitive signal, an orthogonal-phase-repetitive signal at the characterizing frequency, and at least one term of a power series polynomial are generated. One of a current or voltage corresponding to the repetitive signal is applied to an energy cell. Contemporaneously with the applying, measured values of a current or voltage are measured. A set of correlation values between the measured values and the generated time sequences are determined. The set of correlation values are transformed into a set of fitted coefficients of a repetitive signal component and an orthogonal-phase-repetitive signal component at a characterizing frequency. An impedance of the energy cell at the characterizing frequency is determined based on a ratio of the fitted coefficients for the orthogonal-phase-repetitive component to the repetitive signal component.
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公开(公告)号：US09928870B1
公开(公告)日：2018-03-27
申请号：US15720036
申请日：2017-09-29
Applicant: NXP B.V.
Inventor： Edwin Schapendonk
IPC: H03M1/66 , G11B20/10 , H03M1/88 , G01R31/317
CPC classification number: G11B20/10268 , G01R31/31725 , G11B20/10037 , G11B20/10203 , G11B20/10222 , H03M1/0836 , H03M1/661 , H03M1/742 , H03M1/765 , H03M1/88
Abstract: Systems and methods for providing an output signal based at least in part upon an input signal and a clock signal in a manner in which jitter is avoided or diminished, including for example a digital-to-analog converter (DAC), are disclosed herein. In one example embodiment, such a system includes an output signal generating component, a first component having a first switch and a variable characteristic, and a plurality of second components each having a respective additional switch and a respective fixed characteristic. A value of the variable characteristic is set at least in part based upon input and clock signals so that, when the variable characteristic influences at least indirectly the generating of the output signal by the output signal generating component, the output signal attains a first level that at least indirectly depends upon a phase of the clock signal relative to the input signal.
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公开(公告)号：US20240169284A1
公开(公告)日：2024-05-23
申请号：US17990100
申请日：2022-11-18
Applicant: NXP B.V.
Inventor： Henri Verhoeven , Edwin Schapendonk , Matheus Johannus Gerardus Lammers , Oswald Moonen , Klaas Brink
CPC classification number: G06Q10/063114 , H04W4/029 , H04W4/08
Abstract: A task performance system and method including multiple transmitters and multiple task devices distributed in a local area. Each task device includes communication circuitry, a memory, a controller, and output circuitry. The communication circuitry receives timing information and position information from the transmitters. The transmitters may also transmit task information including task location parameters that define the task area. The task area is divided into subblocks each having a corresponding task value. The controller uses the received information to determine its location and accesses the memory when located within the task area to retrieve a corresponding task value based on subblock location. The task information includes task values which may define a different task for each subblock. The controller activates output circuitry in accordance with the task value to perform a corresponding task. The output circuitry may include one or more light sources, a speaker, a vibration device, etc.
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5.发明授权公开(公告)号：US10914609B2
公开(公告)日：2021-02-09
申请号：US16011974
申请日：2018-06-19
Applicant: NXP B.V.
Inventor： Stephan Marauska , Edwin Schapendonk , Dennis Helmboldt , Jaap Ruigrok , Ralf van Otten , Jan Przytarski , Jörg Kock
Abstract: A system includes a magnet configured to produce a magnetic field, the magnet having an asymmetric magnetization configuration that produces a distinct feature in the magnetic field. The asymmetric magnetization configuration can be produced via an asymmetric physical characteristic, nonuniform magnetization strengths, nonuniform magnetization distributions, off-centered magnet, and so forth. Magnetic field sensors are configured to produce output signals in response to the magnetic field, the output signals being indicative of the distinct feature in the magnetic field. A processing circuit receives the output signals and determines a rotation angle for the magnet using the output signals, the rotation angle having a range of 0-360°.
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Patent Agency Ranking
公开(公告)号：US10670425B2
公开(公告)日：2020-06-02
申请号：US15941216
申请日：2018-03-30
Applicant: NXP B.V.
Inventor： Jaap Ruigrok , Edwin Schapendonk , Marijn Nicolaas van Dongen
Abstract: A system for determining angular position includes a dipole magnet having an axis of rotation, wherein the dipole magnet produces a magnetic field. A first magnetic field sensor produces a first output signal and a second magnetic field sensor produces a second output signal in response to the magnetic field. The magnetic field sensors are operated in a saturation mode in which the magnetic field sensors are largely insensitive to the field strength of the magnetic field. Thus, the first output signal is indicative of a first direction of the magnetic field and the second output signal is indicative of a second direction of the magnetic field. Methodology performed by a processing circuit entails combining the first and second output signals to obtain a rotation angle value of the magnet in which angular error from a stray magnetic field is substantially cancelled.
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公开(公告)号：US20200064157A1
公开(公告)日：2020-02-27
申请号：US16113229
申请日：2018-08-27
Applicant: NXP B.V.
Inventor： Stephan Marauska , Edwin Schapendonk , Jörg Kock , Dennis Helmboldt , Ralf van Otten , Jaap Ruigrok
IPC: G01D5/16
Abstract: A system includes a magnet having an axis of rotation, the magnet being configured to produce a magnetic field. The system further includes a plurality of magnetoresistive sensor elements, each of the magnetoresistive sensor elements having a magnetic free layer configured to generate a vortex magnetization pattern in the magnetic free layer, and the magnetoresistive sensor elements being configured to produce output signals in response to the magnetic field. A rotation angle of a rotating element to which the magnet is coupled may be determined using the plurality of output signals.
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公开(公告)号：US20190265071A1
公开(公告)日：2019-08-29
申请号：US15906125
申请日：2018-02-27
Applicant: NXP B.V.
Inventor： Jaap Ruigrok , Edwin Schapendonk , Stephan Marauska , Dennis Helmboldt , Marijn Nicolaas van Dongen
IPC: G01D5/16
Abstract: A system for determining angular position includes a magnet having at least four poles and an axis of rotation, wherein the magnet produces a magnetic field. A first magnetic field sensor produces a first output signal and a second magnetic field sensor produces a second output signal in response to the magnetic field. The magnetic field sensors are operated in a saturation mode in which the magnetic field sensors are largely insensitive to the field strength of the magnetic field. Thus, the first output signal is indicative of a first direction of the magnetic field and the second output signal is indicative of a second direction of the magnetic field. Methodology performed by a processing circuit entails combining the first and second output signals to obtain a rotation angle value of the magnet in which angular error from a stray magnetic field is at least partially canceled.
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9.发明申请公开(公告)号：US20190242956A1
公开(公告)日：2019-08-08
申请号：US15891512
申请日：2018-02-08
Applicant: NXP B.V.
Inventor： Jan Przytarski , Jörg Kock , Stephan Marauska , Edwin Schapendonk
Abstract: A system includes first and second magnetic sense elements for producing first and second output signals, respectively, in response to an external magnetic field along a sensing axis parallel to a plane of the first sense element, a magnetization direction of the second element being rotated in the plane relative to a magnetization direction of the first element. The second output signal differs from the first output signal in dependency to a magnetic interference field along a non-sensing axis of the first magnetic field. A processing circuit, receives the first and second output signals, identifies from a relationship between the first and second output signals an influence of the magnetic interference field on the first output signal, and applies a correction factor to the first output signal to produce a resultant output signal in which the influence of the magnetic interference field is substantially removed.
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10.发明授权公开(公告)号：US10317482B2
公开(公告)日：2019-06-11
申请号：US15356561
申请日：2016-11-19
Applicant: NXP B.V.
Inventor： Marijn Nicolaas Van Dongen , Edwin Schapendonk , Selcuk Ersoy
Abstract: A resistive sensor includes a current input sigma-delta converter that uses a switched offset voltage source to provide scalable gain and more linear operation. The sigma-delta converter includes an integrator, a quantizer, and a decimator. In one embodiment, the resistive sensor and offset voltage source are coupled to provide an input current at a first node. The integrator has a first input terminal coupled to the first node, and an output terminal. The quantizer has a first input terminal coupled to the output terminal of the integrator, a second input terminal for receiving a clock signal, and an output terminal coupled to provide a feedback signal to control the offset voltage source. The decimator has an input terminal coupled to the output terminal of the quantizer, and an output terminal for providing an output signal. The switched offset voltage source provides scalable gain and good linearity.
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