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公开(公告)号：US20240219227A1
公开(公告)日：2024-07-04
申请号：US18149203
申请日：2023-01-03
Applicant: Allegro MicroSystems, LLC
Inventor： Solène Bastien , Andreas P. Friedrich
IPC: G01H11/02 , G01K3/00 , G01P3/44 , H02P29/024
CPC classification number: G01H11/02 , G01K3/005 , G01P3/44 , H02P29/024
Abstract: According to some embodiments, a method for determining a fault status of a target system can include: receiving one or more magnetic field signals sensed by one or more magnetic field sensing elements of a sensor, the one or more magnetic field signals responsive to a magnetic field generated by a target object of the target system, the target object having repetitive motion; processing the one or more magnetic field signals to detect values of one or more parameters indicative of vibration of the target system; calculating deviations between the detected values and corresponding reference values of one or more parameters; determining a fault level of the target system based on the calculated deviations of one or more parameters; and generating an output signal indicating to the fault level.
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公开(公告)号：US20230332878A1
公开(公告)日：2023-10-19
申请号：US18337829
申请日：2023-06-20
Applicant: Allegro MicroSystems, LLC
Inventor： Rémy Lassalle-Balier , Solène Bastien , Paul A. David , Maxime Rioult , Alexander Latham , Shaun Veilleux
CPC classification number: G01B7/30 , G01R33/0094 , G01R33/098 , G01R33/091
Abstract: In one aspect, an angle sensor includes a first plurality of magnetoresistance elements located at a first location on an axis and a second plurality of magnetoresistance elements located at a second location on the axis. The first plurality of magnetoresistance elements includes a first one or more magnetoresistance elements each having a reference direction in a first direction; and a second one or more magnetoresistance elements each having a reference direction in a second direction. The second plurality of magnetoresistance elements includes a third one or more magnetoresistance elements each having a reference direction in the first direction, and a fourth one or more magnetoresistance elements each having a reference direction in the second direction. The angle sensor senses movement of a magnetic target, and the magnetic target is a ring magnet or a single pole magnet.
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Patent Agency Ranking
公开(公告)号：US20220317142A1
公开(公告)日：2022-10-06
申请号：US17217274
申请日：2021-03-30
Applicant: Allegro MicroSystems, LLC
Inventor： Solène Bastien , Andreas P. Friedrich
IPC: G01P3/44
Abstract: A method including: calculating a value of an average phase offset between a first signal and a second signal, wherein: (i) the first signal is generated by one or more first magnetic field sensing elements in response to the magnetic field, (ii) the second signal is generated by one or more second magnetic field sensing elements in response to the magnetic field, and (iii) the magnetic field is associated with a rotating target; storing the value of the average phase offset between the first signal and the second signal at an address in a non-volatile memory of the sensor; when the sensor is restarted, copying the value of the average phase offset from the address in the non-volatile memory to a working memory of the sensor; and using the copy of the value of the average phase offset that is stored in the working memory of the sensor to generate an output signal, the output signal being generated further based on the first signal and the second signal.
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公开(公告)号：US20250027791A1
公开(公告)日：2025-01-23
申请号：US18393954
申请日：2023-12-22
Applicant: Allegro MicroSystems, LLC
Inventor： Solène Bastien , Alexander Latham , Emanuele Andrea Casu , Rémy Lassalle-Balier , David Witts , Paul Smith
Abstract: A system, comprising: a processing circuitry that is configured to: receive a signal S1 and a signal S2, the signal S1 being generated by a first receiving coil in response to a first magnetic field, the signal S2 being generated by a second receiving coil in response to the first magnetic field, receive a signal S3 and a signal S4, the signal S3 being generated by a third receiving coil in response to a second magnetic field, the signal S4 being generated by a fourth receiving coil in response to the second magnetic field; calculate a first electrical angle based on signals S1 and S2; calculate a second electrical angle based on signals S3 and S4; and generate an output signal based on the first and second electrical angles.
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公开(公告)号：US12117465B2
公开(公告)日：2024-10-15
申请号：US17217274
申请日：2021-03-30
Applicant: Allegro MicroSystems, LLC
Inventor： Solène Bastien , Andreas P. Friedrich
CPC classification number: G01P3/44 , G01D5/24495 , G01D18/008
Abstract: A method including: calculating a value of an average phase offset between a first signal and a second signal, wherein: (i) the first signal is generated by one or more first magnetic field sensing elements in response to the magnetic field, (ii) the second signal is generated by one or more second magnetic field sensing elements in response to the magnetic field, and (iii) the magnetic field is associated with a rotating target; storing the value of the average phase offset between the first signal and the second signal at an address in a non-volatile memory of the sensor; when the sensor is restarted, copying the value of the average phase offset from the address in the non-volatile memory to a working memory of the sensor; and using the copy of the value of the average phase offset that is stored in the working memory of the sensor to generate an output signal, the output signal being generated further based on the first signal and the second signal.
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公开(公告)号：US20250027760A1
公开(公告)日：2025-01-23
申请号：US18354895
申请日：2023-07-19
Applicant: Allegro MicroSystems, LLC
Inventor： Zachary Richards , Alexander Latham , Rémy Lassalle-Balier , Solène Bastien , Mathew Drouin
Abstract: A system is provided comprising: a first target including a plurality of first teeth; and a second target that is coupled to the first target via a mechanical link, the second target including a plurality of second teeth, the second target being disposed above or below the first target, the plurality of first teeth including a different number of teeth than the plurality of second teeth, wherein the first target and the second target are configured to generate respective magnetic fields in response to one or more excitation magnetic fields, the respective magnetic fields being usable to measure a twisting force that is incident on the mechanical link that couples the first target to the second target.
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公开(公告)号：US20230378977A1
公开(公告)日：2023-11-23
申请号：US18355623
申请日：2023-07-20
Applicant: Allegro MicroSystems, LLC
Inventor： Solène Bastien , Andreas P. Friedrich
CPC classification number: H03M13/098 , H04L67/12
Abstract: A method is provided for transmitting a message concurrently with a pulse-encoded signal, the method comprising: assigning an identifier to the message; transmitting an identifier of the message between every two consecutive pulses of the pulse-encoded signal until the whole message is transmitted; transmitting a first portion of a payload of the message between every two consecutive pulses of the pulse-encoded signal until the whole message is transmitted; and transmitting a different part of a second portion of the payload of the message between every two consecutive pulses of the pulse-encoded signal until the whole message is transmitted, wherein the pulse-encoded signal encodes information by varying a frequency of pulses of the pulse-encoded signal, and the message is transmitted over a plurality of transmission periods that are delimited by respective consecutive pulses of the pulse-encoded signal.
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