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    Systems and methods for power management at device shutdown
    2.
    发明授权
    Systems and methods for power management at device shutdown 有权

    公开(公告)号：US10599199B1

    公开(公告)日：2020-03-24

    申请号：US15849486

    申请日：2017-12-20

    Applicant: Apple Inc.

    Inventor： Cyril De La Cropte De Chanterac ,  Michael Eng ,  Karen Eckert ,  Alessandro Pelosi ,  David M. Demuro ,  Stephen D. Sterz ,  Nicholas W. Ruhter

    IPC: G06F1/28 ,  G06F1/3296 ,  G06F9/4401

    Abstract: A method is disclosed. The method can include receiving a command to shut down an electronic device based on a measurement of power delivery to the electronic device. After receiving the command to shut down, the method can determine whether an indication of remaining power capacity at the electronic device exceeds a threshold value. The method can shut down the electronic device and, after shutting down the electronic device, in accordance with a determination that the indication of remaining power capacity exceeds the threshold value, automatically reboot the electronic device. In accordance with a determination that the indication of the remaining power capacity does not exceed the threshold value, automatically rebooting the electronic device can be foregone.

    Method and apparatus for entry into low power state
    4.
    发明授权
    Method and apparatus for entry into low power state 有权

    公开(公告)号：US09746904B2

    公开(公告)日：2017-08-29

    申请号：US14694906

    申请日：2015-04-23

    Applicant: Apple Inc.

    Inventor： Fiyinfolu O. Adewale ,  Paul J. Costa ,  David R. Cox ,  Michael J. Giles ,  Steven I. Kuo ,  Nicholas W. Ruhter ,  Steven J. Sfarzo

    IPC: G06F1/32 ,  G06F1/26

    CPC classification number: G06F1/3253 ,  G06F1/266 ,  G06F1/3215 ,  G06F1/3234

    Abstract: A method and apparatus for recovering from a low power state in a computing system is disclosed. In one embodiment of the method, the computing system enters the low power state from a standard power state after an activity detector indicates a user controlled peripheral device connected to the computer system has been inactive for a period of time. To enter the low power state, the method disconnects the user controlled peripheral device from a host controller, while continuing to supply power to the user controlled peripheral device and shutting off power to the host controller. The method returns the computer system to the standard power state when the activity detector indicates the user controlled peripheral device has become active. To return to the standard power state, power is restored to the host controller and the user controlled peripheral device is reconnected to the host controller.

    Power supply acoustic noise mitigation
    5.
    发明授权
    Power supply acoustic noise mitigation 有权
    电源噪声减轻

    公开(公告)号：US09152193B2

    公开(公告)日：2015-10-06

    申请号：US13691678

    申请日：2012-11-30

    Applicant: Apple Inc.

    Inventor： Paul J. Costa ,  David R. Cox ,  Bharat K. Patel ,  Nicholas W. Ruhter ,  Xiaoyang Zhang ,  Steve X. Zhou

    IPC: G06F1/24 ,  G06F1/26

    CPC classification number: G06F1/26

    Abstract: A method and system for reducing acoustic power supply noise, specifically acoustic noise related to power supply switching frequencies in a computing device, is disclosed. In one embodiment, a controller can monitor power consumed by the computing device, and an operational state of the computing device can be determined. If the computing device is in a first operational state and the power consumed is greater than a threshold amount, then the power supply can be operated at a first switching frequency or mode of operation, thereby avoiding switching frequencies that can produce acoustic noise.

    Abstract translation: 公开了一种用于降低声功率噪声的方法和系统，特别是与计算设备中的电源开关频率相关的声学噪声。 在一个实施例中，控制器可以监视由计算设备消耗的功率，并且可以确定计算设备的操作状态。 如果计算设备处于第一操作状态并且功耗大于阈值，则可以以第一开关频率或操作模式操作电源，从而避免可能产生声学噪声的开关频率。

    Method and apparatus for recovery from low power state
    6.
    发明授权
    Method and apparatus for recovery from low power state 有权
    从低功率状态恢复的方法和装置

    公开(公告)号：US09021288B2

    公开(公告)日：2015-04-28

    申请号：US13628000

    申请日：2012-09-26

    Applicant: Apple Inc.

    Inventor： Fiyinfolu O. Adewale ,  Paul J. Costa ,  David R. Cox ,  Michael J. Giles ,  Steven I. Kuo ,  Nicholas W. Ruhter ,  Steven J. Sfarzo

    IPC: G06F1/32

    CPC classification number: G06F1/3253 ,  G06F1/266 ,  G06F1/3215 ,  G06F1/3234

    Abstract: A method and apparatus for recovering from a low power state in a computing system is disclosed. In one embodiment of the method, the computing system enters the low power state from a standard power state after an activity detector indicates a user controlled peripheral device connected to the computer system has been inactive for a period of time. To enter the low power state, the method disconnects the user controlled peripheral device from a host controller, while continuing to supply power to the user controlled peripheral device and shutting off power to the host controller. The method returns the computer system to the standard power state when the activity detector indicates the user controlled peripheral device has become active. To return to the standard power state, power is restored to the host controller and the user controlled peripheral device is reconnected to the host controller.

    Abstract translation: 公开了一种用于在计算系统中从低功率状态恢复的方法和装置。 在该方法的一个实施例中，在活动检测器指示连接到计算机系统的用户控制的外围设备已经不活动一段时间之后，计算系统从标准功率状态进入低功率状态。 为了进入低功率状态，该方法将用户控制的外围设备与主机控制器断开连接，同时继续向用户控制的外围设备供电，并关闭主机控制器的电源。 当活动检测器指示用户控制的外围设备变为活动状态时，该方法将计算机系统返回到标准电源状态。 要恢复到标准电源状态，电源恢复到主机控制器，用户控制的外围设备重新连接到主机控制器。

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