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公开(公告)号：US20180085786A1
公开(公告)日：2018-03-29
申请号：US15693321
申请日：2017-08-31
Applicant: Apple Inc.
Inventor： Teera Songatikamas , Joseph C. Doll , Matthew A. Bigarani
Abstract: In an embodiment, an electromagnetic reluctance actuator comprises: a core assembly including a plurality of magnetic cores arranged in a two-dimensional plane, each core comprised of ferromagnetic material and wound by a coil of conductive wire, the coils operable for producing magnetic flux density in response to electrical currents flowing in the coils, wherein the current in each coil flows in a direction that is opposite the currents flowing in adjacent coils; and an actuator, at least a portion of which comprises ferritic material magnetically coupled to the coils by a magnetic circuit, for producing mechanical force in response to the effect of magnetic flux on the portion, the portion of the actuator being mounted for movement relative to the core assembly.
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公开(公告)号：US20200076244A1
公开(公告)日：2020-03-05
申请号：US16206758
申请日：2018-11-30
Applicant: Apple Inc.
Inventor： J. Stephen Smith , Behrooz Shahsavari , Jacob E. Mattingley , Joseph C. Doll , Steven P. Hotelling , Siddharth Seth , Douglas J. Adams , Michael A. Cretella
Abstract: A wireless power transmitting device transmits wireless power signals to a wireless power receiving device. The wireless power receiving device has a rectifier and a wireless power receiving coil that receives wireless power signals. The wireless power transmitting device uses a layer of coils to transmit the wireless power signals. A dielectric layer in the wireless power transmitting device defines a charging surface that receives the wireless power receiving device. A layer of temperature sensors is interposed between the layer of coils and the dielectric layer. Control circuitry in the wireless power transmitting device uses temperature information from the temperature sensors to determine whether a foreign object such as a coin is present on the charging surface.
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公开(公告)号：US09949390B1
公开(公告)日：2018-04-17
申请号：US15489926
申请日：2017-04-18
Applicant: Apple Inc.
Inventor： Joseph C. Doll , Teera Songatikamas , Adam J. Monkowski , Pavan O. Gupta
CPC classification number: H01F7/064 , G06F3/016 , H04M1/0202
Abstract: An electronic device may include a device housing and a display carried by the device housing. The electronic device may also include an actuator carried between the device housing and the display. The actuator may include an actuator body having an actuator bottom and a sidewall extending upwardly therefrom, a first guide member carried by the actuator bottom and spaced inwardly from adjacent portions of the sidewall to define a channel, and at least one coil carried by the sidewall. The actuator may also include a magnet being moveable within the channel and an actuator top coupled to the magnet and that includes a second guide member cooperating with the first guide member. The electronic device may also include a controller configured to drive the at least one coil to relatively move the actuator bottom and actuator top to thereby deform the display.
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Patent Agency Ranking
公开(公告)号：US20180314331A1
公开(公告)日：2018-11-01
申请号：US15949968
申请日：2018-04-10
Applicant: Apple Inc.
Inventor： Joseph C. Doll , Pavan O. Gupta , Teera Songatikamas , Adam J. Monkowski
IPC: G06F3/01 , H01L27/20 , H01L41/04 , H01L41/047 , H01L41/08 , H01L41/187 , G06F3/041
Abstract: A force transducer for an electronic device can be operated in a drive mode and a sense mode simultaneously. In particular, the force transducer can provide haptic output while simultaneously receiving force input from a user. The force transducer is primarily defined by a monolithic piezoelectric body, a ground electrode, a drive electrode, and a sense electrode. The ground electrode and the drive electrode each include multiple electrically-electrically conductive sheets that extend into the monolithic body; the electrically conductive sheets of the ground electrode and the drive electrode are interdigitally engaged. The sense electrode of the force transducer is typically disposed on an exterior surface of the monolithic body.
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公开(公告)号：US20180090253A1
公开(公告)日：2018-03-29
申请号：US15693088
申请日：2017-08-31
Applicant: Apple Inc.
Inventor： Teera Songatikamas , Joseph C. Doll , Matthew A. Bigarani
CPC classification number: H01F7/1844 , G06F1/1637 , G06F1/1643 , G06F3/016 , G06F3/041 , G06F3/0416 , G06F2203/04105 , H01F2007/185
Abstract: In an embodiment, a system comprises: a electromagnet having a core and a coil wrapped around the core; and a gap sensing circuit coupled to the coil, the gap sensing circuit operable to determine a gap distance between the electromagnet and a ferromagnetic target based on a change of inductance of the coil.
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公开(公告)号：US11442544B2
公开(公告)日：2022-09-13
申请号：US15949968
申请日：2018-04-10
Applicant: Apple Inc.
Inventor： Joseph C. Doll , Pavan O. Gupta , Teera Songatikamas , Adam J. Monkowski
IPC: G06F3/01 , H01L27/20 , H01L41/04 , H01L41/08 , H01L41/187 , G06F3/041 , H01L41/047 , G06F3/044 , G06F1/16
Abstract: A force transducer for an electronic device can be operated in a drive mode and a sense mode simultaneously. In particular, the force transducer can provide haptic output while simultaneously receiving force input from a user. The force transducer is primarily defined by a monolithic piezoelectric body, a ground electrode, a drive electrode, and a sense electrode. The ground electrode and the drive electrode each include multiple electrically-electrically conductive sheets that extend into the monolithic body; the electrically conductive sheets of the ground electrode and the drive electrode are interdigitally engaged. The sense electrode of the force transducer is typically disposed on an exterior surface of the monolithic body.
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公开(公告)号：US10744531B2
公开(公告)日：2020-08-18
申请号：US15693321
申请日：2017-08-31
Applicant: Apple Inc.
Inventor： Teera Songatikamas , Joseph C. Doll , Matthew A. Bigarani
Abstract: In an embodiment, an electromagnetic reluctance actuator comprises: a core assembly including a plurality of magnetic cores arranged in a two-dimensional plane, each core comprised of ferromagnetic material and wound by a coil of conductive wire, the coils operable for producing magnetic flux density in response to electrical currents flowing in the coils, wherein the current in each coil flows in a direction that is opposite the currents flowing in adjacent coils; and an actuator, at least a portion of which comprises ferritic material magnetically coupled to the coils by a magnetic circuit, for producing mechanical force in response to the effect of magnetic flux on the portion, the portion of the actuator being mounted for movement relative to the core assembly.
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公开(公告)号：US10658878B2
公开(公告)日：2020-05-19
申请号：US16206758
申请日：2018-11-30
Applicant: Apple Inc.
Inventor： J. Stephen Smith , Behrooz Shahsavari , Jacob E. Mattingley , Joseph C. Doll , Steven P. Hotelling , Siddharth Seth , Douglas J. Adams , Michael A. Cretella
Abstract: A wireless power transmitting device transmits wireless power signals to a wireless power receiving device. The wireless power receiving device has a rectifier and a wireless power receiving coil that receives wireless power signals. The wireless power transmitting device uses a layer of coils to transmit the wireless power signals. A dielectric layer in the wireless power transmitting device defines a charging surface that receives the wireless power receiving device. A layer of temperature sensors is interposed between the layer of coils and the dielectric layer. Control circuitry in the wireless power transmitting device uses temperature information from the temperature sensors to determine whether a foreign object such as a coin is present on the charging surface.
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