公开(公告)号：US11849376B2

公开(公告)日：2023-12-19

申请号：US17603576

申请日：2020-04-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhuofei Li ,  Liang Wang ,  Lei Shi

IPC: H04W4/80 ,  H04W76/14 ,  H04W12/069

CPC classification number: H04W4/80 ,  H04W12/069 ,  H04W76/14

Abstract: This application discloses a Bluetooth method, and the method is applied to an electronic device. The electronic device includes a Bluetooth chip and a Bluetooth agent module, and the Bluetooth chip is connected to the Bluetooth agent module. The method includes: The Bluetooth agent module indicates the Bluetooth chip to scan for a device identifier. If a first device identifier in the device identifiers is obtained through scanning, the Bluetooth chip notifies the Bluetooth agent module. Based on the first device identifier, the Bluetooth agent module establishes a channel to a first device, or notifies an application corresponding to the first device identifier. The embodiments of this application are implemented, to improve service execution convenience, and reduce power consumption and memory usage of the electronic device.

公开(公告)号：US11509749B2

公开(公告)日：2022-11-22

申请号：US16839973

申请日：2020-04-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liang Wang ,  Xiaoping Fan ,  Xu Zhang

IPC: H04L69/12 ,  H04L69/16 ,  H04W80/06 ,  H04W76/27 ,  H04L5/00

Abstract: A method includes extracting packet information of a data packet to be transmitted through a Transmission Control Protocol (TCP) connection. If the packet information does not match information in a first data flow table, a first compliance detection is performed on the data packet. A state machine of the TCP connection is obtained if the first compliance detection is successful. The method also includes recording the packet information in the first data flow table, recording a connection status of the TCP connection in a first connection tracking table, and sending the data packet to a receiving end of the TCP connection. If the packet information matches the information in the first data flow table, a second compliance detection is performed on the data packet and, if the second compliance detection fails, the connection status of the TCP connection is adjusted and the data packet is discarded.

公开(公告)号：US20220208073A1

公开(公告)日：2022-06-30

申请号：US17433209

申请日：2020-02-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dustin Yuk Lun Wai ,  Kun Wang ,  Anli Wang ,  Liang Wang ,  Chiaching Chu

IPC: G09G3/20

Abstract: An electronic device includes a host controller. The host controller splits a to-be-displayed image into at least two sub images, where each sub image and an adjacent sub image thereof include at least one column of overlapping image pixels. The host controller sends the at least two sub images to at least two display drive circuits, so that the at least two display drive circuits can jointly drive a display screen to display the to-be-displayed image in a sub pixel rendering (SPR) manner.

公开(公告)号：US20220148608A1

公开(公告)日：2022-05-12

申请号：US17418569

申请日：2018-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liang Wang

IPC: G10L19/24 ,  G10L19/16 ,  G10L19/22 ,  H04W4/80

Abstract: Embodiments of this application relate to the field of short-range communications technologies, and provide a method for automatically switching a Bluetooth audio coding scheme and an electronic device, to improve audio experience of using a Bluetooth electronic device by a user, and meet requirements of the user on sound quality and a latency. A specific solution is as follows: When a first device sends a Bluetooth audio data packet to a second device, and when a first application is running, the audio data packet sent by the first device to the second device is encoded by using a first Bluetooth coding scheme. When a second application is running, the audio data packet sent by the first device to the second device is encoded by using a second Bluetooth coding scheme. The Bluetooth coding scheme includes a high sound quality mode, a standard mode, or a low latency mode. The first Bluetooth coding scheme is different from the second Bluetooth coding scheme.

公开(公告)号：US20210409856A1

公开(公告)日：2021-12-30

申请号：US17298265

申请日：2018-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuhong Zhu ,  Liang Wang ,  Yong Zheng ,  Jingyun Zhang

IPC: H04R1/10 ,  H04R5/033 ,  H04R5/04 ,  H04W4/80 ,  G06F3/16

Abstract: A point-to-multipoint data transmission method and device, the method including a left earbud and a right earbud of a true wireless stereo (TWS) headset separately performing pairing and service content negotiation with an electronic device. The left earbud receives left configuration information sent by the electronic device, to configure a left ISO channel, and the right earbud receives right configuration information sent by the electronic device, to configure a right ISO channel. The left earbud receives, based on the BLE-based audio profile, audio data that is sent by the electronic device through the left ISO channel, and the right earbud receives, based on the BLE-based audio profile, the audio data that is sent by the electronic device through the right ISO channel. The left earbud and the right earbud play the respectively received audio data based on a first timestamp.