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公开(公告)号：US11264883B2
公开(公告)日：2022-03-01
申请号：US17021781
申请日：2020-09-15
Applicant: Facebook, Inc.
Inventor： Chiyun Xia , Eric Booen , William Hamlin Farr , Alexandre Yin Khet Chong
IPC: H02K41/035 , H02K41/03 , G06F3/033 , G06F3/01
Abstract: The disclosed system may include (1) a conductive coil, where at least a portion of the coil is oriented along a first direction and orthogonal to a second direction, (2) a magnetic field generation structure that generates a magnetic field through the coil along a third direction orthogonal to the first and second directions, (3) a force constant compensator that (a) receives a current command to alter a relative location of the coil and the field, and (b) adjusts the current command based on at least one physical characteristic of the system that affects a relationship between current in the coil and resulting force between the coil and the field along the second direction, and (4) a coil driver that generates, in response to the adjusted current command, a first current in the coil to generate a force between the coil and the field. Other embodiments are also disclosed.
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公开(公告)号：US10833573B1
公开(公告)日：2020-11-10
申请号：US15940019
申请日：2018-03-29
Applicant: Facebook, Inc.
Inventor： Eric Booen , William Hamlin Farr , Chiyun Xia , Alex Chong
IPC: H02K41/035 , H02K41/03 , H02N15/00 , H02K11/21 , H02K11/33 , H04B10/112 , B64G1/22
Abstract: The disclosed apparatus may include (1) a subassembly including (a) a first conductive coil, where at least a portion of the first coil defines a portion of a spherical surface and is oriented along a first direction along the portion of the spherical surface, (b) a second conductive coil proximate the first coil, where at least a portion of the second coil is oriented along a second direction orthogonal to the first direction along the portion of the spherical surface, and (c) a body that holds the coils, (2) a structure that generates a magnetic field through the portion of the first and second coils along a third direction orthogonal to the first and second directions, and (3) a coil driver circuit that supplies current to the coils to move the structure relative to the subassembly, or vice-versa, along the first and second directions. Various other embodiments are also disclosed.
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Patent Agency Ranking
公开(公告)号：US11218068B1
公开(公告)日：2022-01-04
申请号：US17010258
申请日：2020-09-02
Applicant: Facebook, Inc.
Inventor： Eric Booen , William Hamlin Farr , Chiyun Xia , Alexandre Yin Khet Chong
IPC: H02K41/035 , H02K41/03 , H02N15/00 , H02K11/21 , H02K11/33 , H04B10/112 , B64G1/22
Abstract: The disclosed apparatus may include (1) a subassembly that includes (a) a plurality of conductive coils, where the coils are arranged into first and second rows that are aligned as adjacent layers along a first direction, and where the rows are offset along the first direction such that two portions of each of the coils are arranged along the first direction without overlapping and each of the two portions of each coil is aligned in parallel along a second direction orthogonal to the first direction, and (b) a body that holds the coils, (2) a structure that generates a magnetic field through the portions of the coils, where the magnetic field is directed along a third direction orthogonal to the first and second directions, and (3) a coil driver circuit that supplies current to at least some of the coils to move the structure relative to the subassembly, or vice-versa, along the first direction. Various other embodiments are also disclosed.
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公开(公告)号：US10658916B1
公开(公告)日：2020-05-19
申请号：US16138358
申请日：2018-09-21
Applicant: Facebook, Inc.
Inventor： Chiyun Xia , Eric Booen , William Hamlin Farr , Alexandre Chong
IPC: H02K41/035 , H02K41/03
Abstract: The disclosed system may include (1) a subassembly including (a) conductive coils having portions oriented along a first direction, and (b) a body that holds the coils such that the portions are aligned along a second direction orthogonal to the first direction, (2) a structure that generates a magnetic field directed through at least one coil along a third direction orthogonal to the first and second directions, (3) a commutation controller that (a) receives a current command indicating a total amount of current to provide to the coils, and (b) determines, based on a present location of the body along the second direction relative to the magnetic field, a portion of the total amount to supply to each coil, and (4) a coil driver for each coil, where each coil driver supplies the portion of the total amount to the corresponding coil. Various other embodiments are also disclosed.
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公开(公告)号：US10824245B1
公开(公告)日：2020-11-03
申请号：US16138263
申请日：2018-09-21
Applicant: Facebook, Inc.
Inventor： Chiyun Xia , Eric Booen , William Hamlin Farr , Alexandre Chong
IPC: H02K41/035 , H02K41/03 , G06F3/033 , G06F3/01
Abstract: The disclosed system may include (1) a conductive coil, where at least a portion of the coil is oriented along a first direction and orthogonal to a second direction, (2) a magnetic field generation structure that generates a magnetic field through the coil along a third direction orthogonal to the first and second directions, (3) a detection subsystem that determines a location of the coil relative to the field, (4) a force-to-current converter that (a) receives a force command to alter a relative location of the coil and the field, and (b) issues, in response to the force command, a current command based on the location of the coil relative to the field, and (5) a coil driver that generates, in response to the current command, current in the coil to generate a force between the coil and the field along the second direction. Various other embodiments are also disclosed.
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公开(公告)号：US20190245265A1
公开(公告)日：2019-08-08
申请号：US15887431
申请日：2018-02-02
Applicant: Facebook, Inc.
Inventor： Eric Booen , Wilhelmus Hendrikus Theunissen
CPC classification number: H01Q1/288 , H01Q1/125 , H01Q3/08 , H01Q15/16 , H01Q21/065
Abstract: The disclosed apparatus may include (1) an antenna assembly defining an upper cavity with an aperture, the antenna assembly further defining a lower cavity coupled to the upper cavity via a channel along a linear edge of the antenna assembly, where the antenna assembly may include a reflective element within the lower cavity having a concave parabolic contour, and (2) an array assembly positioned in the aperture and including an array of passive elements. The reflective element may transform a divergent radio frequency (RF) beam directed toward the concave parabolic contour within the lower cavity into a collimated RF beam propagating within the lower cavity and into the upper cavity via the channel, and the array of passive elements may radiate a transmitted RF beam from the aperture in response to the collimated RF beam in the upper cavity. Various other apparatuses, methods, and systems are also disclosed.
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公开(公告)号：US10367255B1
公开(公告)日：2019-07-30
申请号：US15887431
申请日：2018-02-02
Applicant: Facebook, Inc.
Inventor： Eric Booen , Wilhelmus Hendrikus Theunissen
CPC classification number: H01Q1/288 , H01Q1/125 , H01Q3/08 , H01Q15/16 , H01Q21/065
Abstract: The disclosed apparatus may include (1) an antenna assembly defining an upper cavity with an aperture, the antenna assembly further defining a lower cavity coupled to the upper cavity via a channel along a linear edge of the antenna assembly, where the antenna assembly may include a reflective element within the lower cavity having a concave parabolic contour, and (2) an array assembly positioned in the aperture and including an array of passive elements. The reflective element may transform a divergent radio frequency (RF) beam directed toward the concave parabolic contour within the lower cavity into a collimated RF beam propagating within the lower cavity and into the upper cavity via the channel, and the array of passive elements may radiate a transmitted RF beam from the aperture in response to the collimated RF beam in the upper cavity. Various other apparatuses, methods, and systems are also disclosed.
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