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公开(公告)号：US12279079B2
公开(公告)日：2025-04-15
申请号：US17625048
申请日：2020-07-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bihai Wang , Pengcheng Nie , Licheng Song , Xiaolei Liu
IPC: H04N9/31 , G06F3/14 , G09G3/00 , G09G5/14 , H04N21/2662 , H04N21/41 , H04N21/414 , H04N21/431 , H04N21/436 , H04N21/4402 , H04N21/4408
Abstract: Embodiments of this application provide a projection display method and an electronic device, and relate to the field of terminal technologies, to dynamically adjust, based on a quantity of source devices, a parameter of display data projected onto a destination device, so as to improve display smoothness and use experience of a user during projection. The method includes: A source device sends a projection instruction to a destination device, where the projection instruction is used to instruct to project a display interface of the source device onto the destination device for display. The source device receives a first broadcast sent by the destination device, where the first broadcast includes a quantity N of source devices that need to perform projection onto the destination device for display. The source device negotiates a first projection parameter with the destination device based on the quantity N of the source devices, where the first projection parameter includes one or more of a projection resolution, a transmission bit rate, or an encoding compression rate. The source device sends first display data to the destination device based on the first projection parameter.
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公开(公告)号：US12120162B2
公开(公告)日：2024-10-15
申请号：US17667912
申请日：2022-02-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Licheng Song , Xiaolei Liu , Bihai Wang
Abstract: A communication protocol switching method includes that a first device communicates with a second device using a first protocol to project a screen of the first device to the second device; and when a first application in the first device is opened or a media file stored in the first device is opened, the first device switches to a second protocol to communicate with the second device and to project a display user interface of the first application or the media file to the second device, where the first application manages or plays at least one media file.
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公开(公告)号：US20250007969A1
公开(公告)日：2025-01-02
申请号：US18884346
申请日：2024-09-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Licheng Song , Xiaolei Liu , Bihai Wang
Abstract: A communication protocol switching method includes that a first device communicates with a second device using a first protocol to project a screen of the first device to the second device; and when a first application in the first device is opened or a media file stored in the first device is opened, the first device switches to a second protocol to communicate with the second device and to project a display user interface of the first application or the media file to the second device, where the first application manages or plays at least one media file.
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公开(公告)号：US20220239718A1
公开(公告)日：2022-07-28
申请号：US17667912
申请日：2022-02-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Licheng Song , Xiaolei Liu , Bihai Wang
Abstract: A communication protocol switching method includes that a first device communicates with a second device using a first protocol to project a screen of the first device to the second device; and when a first application in the first device is opened or a media file stored in the first device is opened, the first device switches to a second protocol to communicate with the second device and to project a display user interface of the first application or the media file to the second device, where the first application manages or plays at least one media file.
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