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公开(公告)号:US20220399172A1
公开(公告)日:2022-12-15
申请号:US17344337
申请日:2021-06-10
申请人: Apple Inc.
发明人: Shravan Bharadwaj
IPC分类号: H01H13/83 , H01H13/704
摘要: Keyboards and other electronic input devices have a key or keys with glyphs that are invisible to an unaided human eye in a first condition, such as when an underlying display attached to the key is not emitting light. The glyphs are visible through the key or keys when the display emits light. A one-way visibility layer or structure obscures the visibility of the display when viewed from above, but when the display emits light, the light penetrates through the one-way visibility layer, such as by passing through an array of microperforations in the key, and is visible to an onlooker.
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公开(公告)号:US09922759B2
公开(公告)日:2018-03-20
申请号:US15247723
申请日:2016-08-25
申请人: Apple Inc.
发明人: Shravan Bharadwaj
CPC分类号: H01F7/021 , B29C64/153 , H01F1/0536 , H01F1/057 , H01F13/003 , H01F41/0253 , H01F41/0273
摘要: A unibody magnetic structure having layers of variably magnetized material is disclosed. The unibody magnetic structure can be formed by way of additive manufacturing, such as by a stereolithographic (SLA) process or a selective laser sintering (SLS) process. The SLA process can involve forming the structure from a molten pool of polymer material, with the material having a magnetic component dissolved therein. The SLS process can involve sintering the structure from a powder having a magnetic component. As each layer is formed, the layer can be selectively magnetized with a given polarity and strength. The magnetization of each formed layer can vary, such that the final structure comprises numerous layers having different shapes and sizes, as well as different levels and polarities of magnetization.
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公开(公告)号:US09855637B2
公开(公告)日:2018-01-02
申请号:US14638892
申请日:2015-03-04
申请人: Apple Inc.
发明人: Lucas Allen Whipple , Simon Regis Louis Lancaster-Larocque , Collin D. Chan , Christopher R. Fagan , Vincent Yan , Ian S. Theilacker , Brian K. Miehm , Shravan Bharadwaj
IPC分类号: B24B49/14 , B24B49/12 , B24B49/16 , B24B49/00 , B24B37/015
CPC分类号: B24B49/14 , B24B5/00 , B24B7/00 , B24B29/00 , B24B37/015 , B24B41/061 , B24B49/006 , B24B49/12 , B24B49/16
摘要: A method and system for observing and monitoring thermal characteristics of a machining operation, such as a surface finishing operation, performed on a workpiece is disclosed. The surface finishing operation can be performed on the workpiece in order to remove a surface defect, e.g. a parting line, on a surface of the workpiece and/or to provide a mirror-like finish to the workpiece. In one embodiment, an emissive layer is applied to the workpiece to increase a thermal emissivity of the workpiece. In some embodiments, a finishing surface, such as a polishing or buffing wheel, and/or a lubricant used in a finishing operation is monitored. A thermal profile of the surface of the workpiece, finishing surface and/or lubricant can be obtained. The finishing operation can be modified in response to the monitored thermal characteristics to prevent the occurrence of defects and improve the efficacy of the finishing operation.
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公开(公告)号:US20220341585A1
公开(公告)日:2022-10-27
申请号:US17675834
申请日:2022-02-18
申请人: Apple Inc.
发明人: Patrick R. Perry , Jun Cheng , Martin Melcher , Shravan Bharadwaj , Wanshan Li , Scott M. Stryker
摘要: A backlit partially reflective mirror may be used to form a logo or other structure in an electronic device. The electronic device may have a housing. The housing may have a wall with one or more openings configured to receive one or more corresponding logo-shaped portions of the partially reflective mirror. The partially reflective mirror may be illuminated using backlight illumination from a backlight that is overlapped by the partially reflective mirror. The partially reflective mirror may be formed from one or more protruding structures on a common substrate. One or more thin-film layers may be configured to provide the partially reflective mirror with desired visible light reflection spectrum, a desired visible light transmission spectrum, and a desired visible light absorption spectrum. The reflectivity of the mirror may be configure so that the mirror serves as a one-way mirror for the logo or other structure.
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公开(公告)号:US11071228B2
公开(公告)日:2021-07-20
申请号:US16583155
申请日:2019-09-25
申请人: Apple Inc.
发明人: Daniel D. Hershey , Christoph M. Pistor , Bartley K. Andre , Richard D. Kosoglow , Michael D. McBroom , Shravan Bharadwaj , Jonathan L. Berk , Houtan R. Farahani , James M. Cuseo , William R. Allan, II , David C. Parell , Eric A. Knopf , Seth G. McFarland
摘要: A rack system for one or more computing systems is described. The rack system may include support structures, or rack structures, and a housing affixed or un-affixed to the support structures. The rack system may include rails, including telescoping rails, affixed to the support structures and coupled to the computing system. When the rack system is in a closed position, the computing system is positioned within the housing. When the rack system is in an open position, the computing system is removed from the housing and the components of the computing system are accessible. In the open position, only components on one surface of the circuit board are accessible. However, the computing system can rotate, thereby placing the components on the opposing surface of the circuit board in an accessible position. Alternatively, the housing can be affixed to the computing system, and include modifications for access to the computing system.
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公开(公告)号:US10861629B1
公开(公告)日:2020-12-08
申请号:US15890618
申请日:2018-02-07
申请人: Apple Inc.
摘要: Solid-state deposition of materials and structures formed thereof are described. In particular embodiments, solid-state deposition of materials may be utilized for integrated magnetic assemblies. The integrated magnetic assemblies may include a substrate having a cavity that is physically isolated from an environment external from the substrate and a magnetizable magnetic element formed of particles of magnetizable material. The magnetizable magnetic element may be carried within the cavity such that the magnetizable magnetic element fills the cavity and takes on a size and a shape of the cavity.
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公开(公告)号:US10709212B1
公开(公告)日:2020-07-14
申请号:US15209308
申请日:2016-07-13
申请人: Apple Inc.
发明人: Shravan Bharadwaj
摘要: An item may be provided with a body that forms an enclosure. The body may have a body portion that opens and closes along a seam. An elongated magnetic fastener may run along the seam. The magnetic fastener may have first and second strips of elastomeric material on opposing sides of the seam. Magnetic interlocking elements may be partially embedded in the first and second elastomeric strips. The fastener may be formed by injecting uncured elastomeric material having unmagnetized magnetic particles into a mold. While in the mold, a magnetic field may be applied to magnetize the magnetic particles and to align the magnetic particles into magnetized structures. After forming the magnetized structures within the elastomeric material, the elastomeric material may be cured. Once removed from the mold, portions of the elastomeric material may be removed to expose the magnetized structures, which may subsequently be shaped into interlocking fastener elements.
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公开(公告)号:US11009921B1
公开(公告)日:2021-05-18
申请号:US16874565
申请日:2020-05-14
申请人: Apple Inc.
发明人: Shravan Bharadwaj
摘要: An electronic device may have a housing with first and second portions that move relative to each other. The housing may have a hinge that is configured to bend about a hinge axis. Control circuitry in the electronic device may adjust an electrically adjustable device to control resistance of the hinge to bending about the hinge axis. The electrically adjustable device may be an electroactive polymer that that adjusts pressure between two sliding layers of material, may be a magnetorheological device, may be an adjustable component formed from a shape memory material, or may be another electrically adjustable device. One or more sensors in the electronic device may gather sensor data such as touch input, force input, input related to movement of the housing, housing position information, and/or other data. During operation, the control circuitry can adjust the resistance of the hinge to bending based on the sensor data.
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公开(公告)号:US10475560B1
公开(公告)日:2019-11-12
申请号:US15163993
申请日:2016-05-25
申请人: Apple Inc.
发明人: Shravan Bharadwaj
摘要: Items such as electronic devices, fabric-based items, and other items may include strands of magnetic material. The magnetic material may be formed from particles of a rare-earth alloy or other magnetic materials in a binder. Strands of magnetic material may have magnetic cores surrounded by one or more additional layers such as non-magnetic layers or may have non-magnetic cores surrounded by one or more additional layers including a magnetic layer. The strands of material may be uniform along their lengths or may be segmented into non-magnetic and magnetic portions. Items may include fabric formed from intertwined strands of magnetic material. Magnetic material may interact with permanent magnets and electromagnets. Magnetic sensors may monitor for the presence of magnetic portions of a fabric or other structure.
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公开(公告)号:US10234960B1
公开(公告)日:2019-03-19
申请号:US15490115
申请日:2017-04-18
申请人: Apple Inc.
发明人: Shravan Bharadwaj
IPC分类号: G06F3/02
摘要: An electronic device can include a key and/or a keyboard system. In one embodiment, magneto-rheological materials are employed to provide a variable response keyboard of an electronic device.
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