公开(公告)号：US20240053946A1

公开(公告)日：2024-02-15

申请号：US18254472

申请日：2021-11-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guanqi PENG ,  Xiaoxiao DUAN ,  Jinbo WANG ,  Xiaofei ZHONG

IPC: G06F3/14

CPC classification number: G06F3/1462

Abstract: An example method includes displaying a first interface image. The first interface image is encoded to obtain encoded data of the first interface image. Encoded information of the first interface image is sent to the second electronic device. An ith frame of interface image is displayed in response to an update operation on the first interface image. N difference regions in the ith frame of interface image compared with an (i−1)th frame of interface image are obtained. If an area proportion of the N difference regions in the ith frame of interface image is less than a preset value, image content of the N difference regions is encoded to obtain first encoded data. First encoded information is sent to the second electronic device, where the first encoded information includes the first encoded data and location information of the N difference regions in the ith frame of interface image.

公开(公告)号：US20230388405A1

公开(公告)日：2023-11-30

申请号：US18249802

申请日：2021-08-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mengzheng HUA ,  Gang LI ,  Xiaofei ZHONG ,  Cheng LUO ,  Xiong SHEN

IPC: H04M1/72412 ,  H04M1/72427 ,  G06F3/14

CPC classification number: H04M1/72412 ,  H04M1/72427 ,  G06F3/1454

Abstract: In an example method, a first device establishes a connection for multi-screen collaboration to a second device. The first device turns off a screen in response to a first event. The first device draws screen content based on a first software signal in response to a second event, to obtain a screen content drawing result. Then, the first device synthesizes the screen content drawing result based on a second software signal, to obtain a screen content synthesis result. The first software signal and the second software signal are software synchronization signals that are generated by a same software signal source in the first device and that have a same cycle. Finally, the first device sends the screen content synthesis result to the second device.