公开(公告)号：US11815677B1

公开(公告)日：2023-11-14

申请号：US16871069

申请日：2020-05-11

申请人： Apple Inc.

发明人： Arman Hajati ,  Alexander Shpunt ,  Robert S. Upton ,  Yuval Gerson

IPC分类号： G02B27/00 ,  G02B27/01 ,  G02B26/10

CPC分类号： G02B27/0081 ,  G02B26/105 ,  G02B27/0172

摘要： Image projection apparatus includes an image generating assembly, which is configured to project a sequence of line images extending in a first direction. A scanning mirror is positioned to receive and to reflect the line images while rotating about a mirror axis parallel to the first direction. A pupil expander has an edge positioned to receive the line images reflected by the scanning mirror and a face extending in a second direction non-parallel to the first direction and to the edge, and which is configured to direct simultaneously through the face multiple, parallel replicas of the expanded line images arrayed along the second direction.

公开(公告)号：US10436607B2

公开(公告)日：2019-10-08

申请号：US15674227

申请日：2017-08-10

申请人： Apple Inc.

发明人： Denis G. Chen ,  Arman Hajati ,  Manoj K. Bhattacharyya

IPC分类号： G01D5/20 ,  G01D5/14

摘要： An integrated circuit (IC) chip including an array of asymmetrically distributed magnetic field sensing elements. Additionally, an integrated circuit (IC) chip includes a substrate, a sensing coil supported by the substrate and enclosing a portion of substrate, and a Hall effect sensor supported by the portion of the substrate enclosed by the sensing coil.

公开(公告)号：US10268274B2

公开(公告)日：2019-04-23

申请号：US15659374

申请日：2017-07-25

申请人： Apple Inc.

发明人： Arman Hajati

IPC分类号： G09G5/00 ,  G06F3/01 ,  G06F1/16

摘要： A haptic actuator may include a housing having a top and a bottom. At least one of the top and the bottom may have a shape defining an internal recess therein. The haptic actuator may include a coil carried within the internal recess, and a field member having opposing first and second sides and that includes at least one permanent magnet adjacent the coil. The haptic actuator may also include a respective flexure bearing mounting each of the first and second sides of the field member to be reciprocally movable within the housing responsive to the coil.

公开(公告)号：US10038361B2

公开(公告)日：2018-07-31

申请号：US15222511

申请日：2016-07-28

申请人： Apple Inc.

发明人： Arman Hajati ,  Steven P. Hotelling ,  Anuranjini Pragada

IPC分类号： H02K33/00 ,  G06F1/16 ,  G06F3/01 ,  H02K33/16

CPC分类号： H02K33/00 ,  G06F1/163 ,  G06F3/016 ,  H01H2215/00 ,  H01H2231/028 ,  H02K33/16

摘要： A haptic actuator may include a housing, at least one coil carried by the housing, and a field member having opposing first and second sides. The haptic actuator may also include a respective at least one flexure bearing mounting each of the first and second sides of the field member to be reciprocally movable within the housing responsive to the at least one coil. Each flexure bearing may include at least one flexible member having a wishbone shape with two diverging arms joined together at proximal ends and having spaced distal ends operatively coupled between adjacent portions of the field member and the housing.

公开(公告)号：US20170039824A1

公开(公告)日：2017-02-09

申请号：US14819829

申请日：2015-08-06

申请人： Apple Inc.

发明人： Arman Hajati

IPC分类号： G08B6/00 ,  B06B1/02 ,  H01L41/09 ,  G06F3/01

CPC分类号： G08B6/00 ,  B06B1/0276 ,  G06F3/016 ,  H01L41/09

摘要： A haptic actuator may include a housing, at least one coil carried by the housing, and a field member movable within the housing responsive to the at least one coil. The housing, at least one coil, and field member may define a resonant frequency. The haptic actuator may also include drive circuitry coupled to the at least one coil and being capable of generating first and second drive waveforms having respective different frequencies spaced about the resonant frequency to drive the field member at a beat frequency lower than the resonant frequency.

摘要翻译： 触觉致动器可以包括壳体，由壳体承载的至少一个线圈以及响应于至少一个线圈在壳体内可移动的磁场部件。 壳体，至少一个线圈和场构件可以限定谐振频率。 触觉致动器还可以包括耦合到至少一个线圈并且能够产生具有围绕谐振频率间隔开的各个不同频率的第一和第二驱动波形的驱动电路，以便以低于谐振频率的拍频来驱动场元件。

公开(公告)号：US11875714B2

公开(公告)日：2024-01-16

申请号：US16554312

申请日：2019-08-28

申请人： Apple Inc.

发明人： Arman Hajati ,  Robert S. Upton ,  Yuval Gerson

IPC分类号： G02B26/08 ,  G09G3/02 ,  G02B6/42 ,  G02B26/10 ,  G02B27/30 ,  G06F3/01 ,  G02B17/06 ,  G09G3/34 ,  G02B27/01 ,  G02B27/00 ,  G02B26/12

CPC分类号： G09G3/02 ,  G02B6/4204 ,  G02B17/06 ,  G02B26/0816 ,  G02B26/101 ,  G02B26/105 ,  G02B27/30 ,  G06F3/011 ,  G06F3/012 ,  G06F3/013 ,  G09G3/346 ,  G02B6/423 ,  G02B26/10 ,  G02B26/124 ,  G02B26/125 ,  G02B27/0093 ,  G02B27/0172 ,  G02B2027/0112 ,  G02B2027/0138 ,  G09G2320/064 ,  G09G2340/0407

摘要： A display system may display image frames. The system may include a scanning mirror and an array of staggered light emitting elements. The light emitting elements may emit image light and collimating optics may direct the light at the scanning mirror, which reflects the image light while rotating about an axis. Control circuitry may selectively activate the light emitting elements across tangential and sagittal axes of the image frame while controlling the scanning mirror to scan across the sagittal axis.

公开(公告)号：US11719947B1

公开(公告)日：2023-08-08

申请号：US16871063

申请日：2020-05-11

申请人： Apple Inc.

发明人： Arman Hajati ,  Eric J. Hansotte ,  Robert S. Upton

IPC分类号： G02B27/10 ,  G02B27/09 ,  B23K26/073

CPC分类号： G02B27/0983 ,  B23K26/0732 ,  G02B27/0927

摘要： An optical component includes a block of a transparent material, having a trapezoidal cross-section defined by first and second parallel, rectangular faces on mutually-opposing sides of the block and third and fourth faces oriented diagonally at opposing ends of the first and second faces. One or more planar, partially-reflecting layers extend within the block between the third and fourth faces in an orientation parallel to the first and second faces.

公开(公告)号：US10524040B2

公开(公告)日：2019-12-31

申请号：US16194130

申请日：2018-11-16

申请人： Apple Inc.

发明人： Arman Hajati ,  Supratik Datta

IPC分类号： H04R1/10

摘要： An electronic device such as a pair of headphones may be provided with ear cups having speakers for playing audio to a user. Capacitive sensor electrodes may be used in capturing capacitive sensor ear images that are processed by a machine learning classifier to determine whether the headphones are being worn in a reversed or unreversed orientation. The capacitive sensor electrodes may include grill electrodes that overlap at least part of a speaker grill, cushion electrodes that make capacitive sensor measurements through ring-shaped ear cup cushions that surround the speaker grills, and ring electrodes. The ring electrodes may be formed from metal traces on a flexible printed circuit. The flexible printed circuit may include a portion that wraps around each speaker grill and that is surrounded by a corresponding one of the cushions.

公开(公告)号：US10277154B2

公开(公告)日：2019-04-30

申请号：US15698559

申请日：2017-09-07

申请人： Apple Inc.

发明人： Arman Hajati ,  Hari Vasudevan

IPC分类号： H02P25/032 ,  H02P29/68 ,  H02K11/25 ,  H02K33/16 ,  H02K11/215

摘要： In an embodiment of a system for closed-loop control of a linear resonant actuator, a system processor coupled to a magnetic field sensor is configured to: receive a magnetic field sensor signal from a channel coupling a magnetic field sensor and the system processor; receive measurements of actuator current and actuator voltage from drive electronics; receive a temperature signal from a linear resonant actuator, the temperature signal indicating a temperature of the magnetic field sensor; calculate a first estimate of mass position using the magnetic field sensor signal, actuator current and a magnetic model; calculate an estimate of coil resistance based on the temperature signal, the actuator current, the actuator voltage and a thermal model; and calculate a second estimate of mass position and an estimate of mass velocity based on the first estimate of mass position, the actuator current, the actuator voltage and the estimated coil resistance.

公开(公告)号：US10162417B2

公开(公告)日：2018-12-25

申请号：US14819865

申请日：2015-08-06

申请人： Apple Inc.

发明人： Arman Hajati

IPC分类号： G06F3/01 ,  G06F1/16

摘要： A method of tuning a haptic actuator that includes a housing having an initial ferromagnetic mass, at least one coil carried by the housing, and a field member movable within the housing responsive to the at least one coil, wherein the haptic actuator operative as a resonator and has an initial quality (Q) factor, may include measuring the initial Q factor of the haptic actuator. The method may include determining a desired ferromagnetic mass for the housing to tune the initial Q factor to a desired Q factor. The method may also include changing the initial ferromagnetic mass of the housing to the desired ferromagnetic mass. Another embodiment changes the ferromagnetic mass of the field member.