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    Electronic Devices With Enclosure-Based Power Consumption
    21.
    发明公开
    Electronic Devices With Enclosure-Based Power Consumption 审中-公开

    公开(公告)号：US20240272697A1

    公开(公告)日：2024-08-15

    申请号：US18534445

    申请日：2023-12-08

    Applicant: Apple Inc.

    Inventor： Xiaoyuan Tu ,  Anna E Craig ,  Evan G Kriminger

    IPC: G06F1/3231 ,  G06F1/3234 ,  H04W52/02

    CPC classification number: G06F1/3231 ,  G06F1/3265 ,  H04W52/0254

    Abstract: An electronic device may have a battery that powers one or more components, such as a display, sensors, or input-output devices, in the device. It may be desirable to reduce power consumption of the battery in certain situations. For example, it may be desirable to reduce power consumption when the electronic device is enclosed, such as in a pocket, in a bag, or covered by a sleeve. To determine whether the device is enclosed, a pressure sensor and/or an accelerometer may be used to gather pressure measurements and/or motion measurements while the device is in motion. A controller may analyze these measurements in a temporal and/or a spectral space to determine whether the device is enclosed. Other sensor information, such as ambient light measurements, may also be used in the enclosure determination. In response to determining that the device is enclosed, the controller may power consumption.

    POSTURE TRANSITION DETECTION AND CLASSIFICATION USING LINKED BIOMECHANICAL MODEL
    24.
    发明申请
    POSTURE TRANSITION DETECTION AND CLASSIFICATION USING LINKED BIOMECHANICAL MODEL 有权

    公开(公告)号：US20230100254A1

    公开(公告)日：2023-03-30

    申请号：US17485212

    申请日：2021-09-24

    Applicant: Apple Inc.

    Inventor： Aditya Sarathy ,  Xiaoyuan Tu ,  Suresh B. Malakar ,  Hui Lin

    IPC: H04S7/00 ,  G06K9/62 ,  G06F9/448

    Abstract: Embodiments are disclosed for user posture transition detection and classification using a linked biomechanical model. In an embodiment, a method comprises: obtaining motion data from a headset worn by a user; selecting features of a linked biomechanical model based on a current posture state; determining at least one probability that a posture transition occurred based on an output of a classifier, where the output of the classifier is based on the selected features and the motion data; determining a posture transition based on the at least one probability; and performing at least one action based on detection of the posture transition.

    INERTIALLY STABLE VIRTUAL AUDITORY SPACE FOR SPATIAL AUDIO APPLICATIONS
    25.
    发明申请
    INERTIALLY STABLE VIRTUAL AUDITORY SPACE FOR SPATIAL AUDIO APPLICATIONS 有权

    公开(公告)号：US20210400420A1

    公开(公告)日：2021-12-23

    申请号：US17351199

    申请日：2021-06-17

    Applicant: Apple Inc.

    Inventor： Xiaoyuan Tu ,  Margaret H. Tam ,  Alexander Singh Alvarado ,  Johahn Leung ,  Simon Woollard

    IPC: H04S7/00 ,  G06F3/01 ,  H04R5/033 ,  H04S3/00

    Abstract: During an initialization of a head pose tracker for a spatial audio system, a spatial audio ambience bed is rotated about a boresight vector to align the boresight vector with a center channel of the ambience bed. The boresight is computed using source device motion data and headset motion data. The ambience bed includes the center channel and one or more other channels. An ambience bed reference frame is aligned with a horizontal plane of a headset reference frame, such that the ambience bed is horizontally level with a user's ears. A first estimated gravity direction is fixed (made constant) in the ambience bed reference frame. During head pose tracking, the ambience bed reference frame is rolled about the boresight vector to align a second estimated gravity direction in the headset reference frame with the first estimated gravity direction fixed in the ambience bed reference frame.

    HEAD TRACKING CORRELATED MOTION DETECTION FOR SPATIAL AUDIO APPLICATIONS
    26.
    发明申请
    HEAD TRACKING CORRELATED MOTION DETECTION FOR SPATIAL AUDIO APPLICATIONS 有权

    公开(公告)号：US20210400414A1

    公开(公告)日：2021-12-23

    申请号：US17351205

    申请日：2021-06-17

    Applicant: Apple Inc.

    Inventor： Xiaoyuan Tu ,  Margaret H. Tam ,  Halil Ibrahim Basturk ,  Alexander Singh Alvarado ,  Adam S. Howell

    IPC: H04S7/00

    Abstract: Embodiments are disclosed for head tracking state detection based on correlated motion of a source device and a headset communicatively coupled to the source device. In an embodiment, a method comprises: obtaining, using one or more processors of a source device, source device motion data from a source device and headset motion data from a headset; determining, using the one or more processors, correlation measures using the source device motion data and the headset motion data; updating, using the one or more processors, a motion tracking state based on the determined correlation measures; and initiating head pose tracking in accordance with the updated motion tracking state.

    HEAD MOTION PREDICTION FOR SPATIAL AUDIO APPLICATIONS
    27.
    发明申请
    HEAD MOTION PREDICTION FOR SPATIAL AUDIO APPLICATIONS 有权

    公开(公告)号：US20210397249A1

    公开(公告)日：2021-12-23

    申请号：US17351187

    申请日：2021-06-17

    Applicant: Apple Inc.

    Inventor： Evan G. Kriminger ,  Xiaoyuan Tu ,  Alexander Singh Alvarado

    IPC: G06F3/01 ,  G01P15/18 ,  H04S7/00

    Abstract: Embodiments are disclosed for head motion prediction for spatial audio applications. In an embodiment, a method comprises: obtaining motion data from a source device and a headset; obtaining transmission delays from a wireless stack of the source; estimating relative motion from the relative source device and headset motion data; calculating a first derivative of the relative motion data; forward predicting the estimated relative motion over the time delays using the first derivative and second derivative of relative motion; determining, using a head tracker, a head pose of the user based on the forward predicted relative motion data; and rendering, using the head pose, spatial audio for playback on the headset.

    RAISE GESTURE DETECTION IN A DEVICE
    29.
    发明申请
    RAISE GESTURE DETECTION IN A DEVICE 审中-公开

    公开(公告)号：US20190011973A1

    公开(公告)日：2019-01-10

    申请号：US16130725

    申请日：2018-09-13

    Applicant: Apple Inc.

    Inventor： Xiaoyuan Tu ,  Anil K. Kandangath ,  Adam S. Howell

    IPC: G06F1/32 ,  G06F3/01 ,  G06F1/16

    Abstract: A wearable computing device can detect device-raising gestures. For example, onboard motion sensors of the device can detect movement of the device in real time and infer information about the spatial orientation of the device. Based on analysis of signals from the motion sensors, the device can detect a raise gesture, which can be a motion pattern consistent with the user moving the device's display into his line of sight. In response to detecting a raise gesture, the device can activate its display and/or other components. Detection of a raise gesture can occur in stages, and activation of different components can occur at different stages.

    Raise gesture detection in a device
    30.
    发明授权
    Raise gesture detection in a device 有权

    公开(公告)号：US10101793B2

    公开(公告)日：2018-10-16

    申请号：US14796675

    申请日：2015-07-10

    Applicant: Apple Inc.

    Inventor： Xiaoyuan Tu ,  Anil K. Kandangath ,  Adam S. Howell

    IPC: G06F1/32 ,  G06F1/16 ,  G06F3/01

    Abstract: A wearable computing device can detect device-raising gestures. For example, onboard motion sensors of the device can detect movement of the device in real time and infer information about the spatial orientation of the device. Based on analysis of signals from the motion sensors, the device can detect a raise gesture, which can be a motion pattern consistent with the user moving the device's display into his line of sight. In response to detecting a raise gesture, the device can activate its display and/or other components. Detection of a raise gesture can occur in stages, and activation of different components can occur at different stages.

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