Huawei Technologies Co., Limited

Tencent Technology (shenzhen) Company Limited

Jingyun Zhang

Yuhong Zhu

Liang Wang

Yong Sen Zheng

Hui Xing Wang

Runzeng Guo

Shaoming Wang

Guanjun Ni

Zhichao Chen

Yong Zheng

Jiongjin Su

A Bluetooth communication method is disclosed, and relates to the field of short-range wireless communications technologies. The method includes: A terminal receives a play operation performed by a user on first audio data. The terminal sends first indication information to a Bluetooth device when a service type of the first audio data is a first service type, where the first indication information is used by the Bluetooth device to set a buffer time length for the audio data to first duration. The Bluetooth device receives the first audio data sent by the terminal via Bluetooth, and buffers the first audio data. The Bluetooth device starts to play the buffered first audio data when the buffer time length for the first audio data reaches the first duration. In this way, the terminal can perform targeted delay control on audio data playback of the Bluetooth device in different application scenarios.

Bluetooth communication method and related apparatus

This application provides an image dehazing method, apparatus, and device, and a computer storage medium. The method includes: in response to obtaining an image dehazing instruction, acquiring a first image and a second image corresponding to a target scene at the same moment. The method also includes calculating, based on a first pixel value of each pixel of the first image and a second pixel value of each pixel of the second image, haze density information of the each pixel; generating an image fusion factor of the each pixel according to the haze density information, the image fusion factor indicating a fusion degree between the first image and the second image; and fusing the first image and the second image according to the image fusion factor to obtain a dehazed image.

Image dehazing method, apparatus, and device, and computer storage medium

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.

Point-to-multipoint data transmission method and device

An audio data transmission method. An electronic device transmits audio data to a first earbud of a TWS headset by using a first CIS of a first CIG, and transmits audio data to a second earbud of the TWS headset by using a second CIS of the first CIG. The electronic device determines that the TWS headset is switched from a double-earbud mode (namely, a mode in which the first earbud and the second earbud are used together as audio input/output devices of the electronic device) to a first single-earbud mode (namely, a mode in which the first earbud is independently used as an audio input/output device of the electronic device). In response to the determining, the electronic device deactivates the second CIS, stops transmitting audio data to the second earbud by using the second CIS, and continues transmitting audio data to the first earbud by using the first CIS.

Audio data transmission method applied to switching between single-earbud mode and double-earbud mode of TWS headset and device

An electronic device establishes a first Bluetooth connection to a first wireless earbud, where there is a wireless connection between the first wireless earbud and a second wireless earbud. The electronic device establishes a second Bluetooth connection to the second wireless earbud by using the first wireless earbud. The electronic device simultaneously maintains the first Bluetooth connection and the second Bluetooth connection.

Bluetooth connection method and device

A method for retrieving an audio file includes: collecting an audio segment in real time; and for every two chronologically adjacent audio frames in a plurality of audio frames of the audio segment, acquiring a difference value between spectral centroids of a sub-band corresponding to the two audio frames, to obtain a plurality of difference values; and obtaining an audio fingerprint corresponding to the two audio frames based on the plurality of difference values. A quantity of the plurality of difference values equaling a quantity of sub-bands of one of the two audio frames. Each bit of the audio fingerprint being determined based on a comparison between a difference value corresponding to the bit and a preset difference value threshold. The method also includes retrieving, in an audio file library based on audio fingerprints of the plurality of audio frames, a target audio file matching the audio segment.

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Shanghai, China

Jingyun Zhang