公开(公告)号：US20200183704A1

公开(公告)日：2020-06-11

申请号：US16792575

申请日：2020-02-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chih-Yung LAI ,  Yi LI ,  Fengjun LI

IPC: G06F9/4401 ,  G06F1/3234 ,  G06F3/14

Abstract: A method for waking up a computer from a sleep state is provided, the method includes: before controlling a computer to enter a sleep state, a CPU stores picture information currently displayed on a display screen, obtains the stored picture information in a process in which the computer is woken up from the sleep state, displays the picture information on the display screen, and then starts an operating system. According to a manner of the embodiments of the present invention, before the computer starts the operating system, the display screen has lighted up, and a black screen state of the display screen in a process of waking up the computer from the sleep state is ended relatively early, to further reduce a waiting time of a user and improve user experience.

公开(公告)号：US20210326487A1

公开(公告)日：2021-10-21

申请号：US17360274

申请日：2021-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhensheng ZHOU ,  Zengcai SUN ,  Yi LI ,  Fengjun LI ,  Jingdong WU

IPC: G06F21/70 ,  G06F21/31

Abstract: A locking method and a related device are provided. The method is applied to an electronic device, where the electronic device includes a processor and a locking control circuit, and the locking control circuit is capable of running when the electronic device is in a power-off state or a power-on state. The method includes: modifying, by the locking control circuit, a state flag to a first state flag when the electronic device needs to be locked, where the first state flag is used to indicate a state that the electronic device needs to be locked and is not locked; controlling, by the locking control circuit, the electronic device to restart; reading, by the processor, the state flag in a startup phase of the electronic device restart; and locking the electronic device when the processor determines that the state flag is the first state flag.