Haptic actuator including slidably coupled masses including coils and related methods

    公开(公告)号:US09966825B2

    公开(公告)日:2018-05-08

    申请号:US14858754

    申请日:2015-09-18

    Applicant: APPLE INC.

    CPC classification number: H02K33/02 G06F1/163 G06F3/016 G06F3/02 H04M19/047

    Abstract: A haptic actuator may include a housing having a top and a bottom, and first and second permanent magnets carried by the top and bottom, respectively, of the housing. The haptic actuator may also include a field member carried by the housing. The field member may include a coil between the first and second permanent magnets, first and second ends, and a first mass between the first end and the coil, and a second mass between the second end and the coil. A first shaft may slidably couple the first mass to the housing, and a second shaft may slidably couple the second mass to the housing. The haptic actuator may also include a first set of biasing members between the first end of the field member and the housing and a second set of biasing members between the second end of the field member and the housing.

    Pixel array implemented on photonic integrated circuit (PIC)

    公开(公告)号:US11480728B2

    公开(公告)日:2022-10-25

    申请号:US16858828

    申请日:2020-04-27

    Applicant: Apple Inc.

    Abstract: An optoelectronic device includes a substrate and at least three emitters, which are disposed on the substrate and are configured to emit respective beams of light. A plurality of waveguides are disposed on the substrate and have respective input ends coupled to receive the beams of light from respective ones of the emitters, and curve adiabatically from the input ends to respective output ends of the waveguides, which are arranged on the substrate in an array having a predefined pitch. Control circuitry is configured to apply a temporal modulation independently to each of the beams of light.

    Haptic Actuator Including Flexure Bearing

    公开(公告)号:US20220233951A1

    公开(公告)日:2022-07-28

    申请号:US17716935

    申请日:2022-04-08

    Applicant: Apple Inc.

    Abstract: 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 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. The two diverging arms may each have a reduced size medial portion relative to respective proximal and distal ends.

    Electronic device including sensed location based driving of haptic actuators and related methods

    公开(公告)号:US10671167B2

    公开(公告)日:2020-06-02

    申请号:US15659291

    申请日:2017-07-25

    Applicant: Apple Inc.

    Inventor: Arman Hajati

    Abstract: An electronic device may include a device housing, a touch display carried by the device housing and configured to sense a user input at a location thereon, and haptic actuators spaced apart within the device housing. The electronic device may also include a controller coupled to the touch display and the haptic actuators. The controller may be configured to cooperate with the touch display to determine a sensed location of the user input on the touch display, and drive the haptic actuators to focus a haptic sensation at the sensed location on the touch display.

    Haptic actuator including flexure bearing having flexible arm including a bend coupling anchor members and related methods

    公开(公告)号:US10127778B2

    公开(公告)日:2018-11-13

    申请号:US15266032

    申请日:2016-09-15

    Applicant: Apple Inc.

    Abstract: 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 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 a first anchor member coupled to an adjacent portion of the housing, a second anchor member coupled to an adjacent side of the field member, and a first flexible arm coupling the first and second anchor members together and having at least one bend therein.

    Method of tuning a haptic actuator including ferromagnetic mass change iterations and related apparatus

    公开(公告)号:US10120448B2

    公开(公告)日:2018-11-06

    申请号:US14819910

    申请日:2015-08-06

    Applicant: Apple Inc.

    Inventor: Arman Hajati

    Abstract: A method is directed to tuning a haptic actuator that includes a housing having a ferromagnetic mass, a coil carried by the housing, and a field member movable within the housing responsive to the coil. The haptic actuator is operative as a resonator and has an initial quality (Q) factor. The method may include determining whether the initial Q factor is within a desired Q factor range, and when the initial Q factor is not within the desired Q factor range, performing ferromagnetic mass change iterations until an updated Q factor is within the desired Q factor range. Each ferromagnetic mass change iteration may include changing the ferromagnetic mass of the housing, determining the updated Q factor based upon changing the ferromagnetic mass of the housing, and determining whether the updated Q factor is within the desired Q factor range. Another embodiment changes the ferromagnetic mass of the field member.

    Electronic device including closed-loop controller for haptic actuator and related methods

    公开(公告)号:US10007344B2

    公开(公告)日:2018-06-26

    申请号:US15096379

    申请日:2016-04-12

    Applicant: Apple Inc.

    CPC classification number: G06F3/016

    Abstract: An electronic device may include a haptic actuator that may include a housing and a field member movable within the housing, and a driver capable of driving the haptic actuator and sensing at least one of a drive voltage and drive current for the haptic actuator. The electronic device may also include a closed-loop controller cooperating with the driver. The closed-loop controller may be capable of determining a calibration of the haptic actuator based upon at least one of the drive voltage and drive current, storing a reference pattern of movement for the field member, and driving the haptic actuator in a closed-loop configuration based upon the calibration of the haptic actuator and reference pattern of movement of the field member.

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