US 12,452,675 B2
Bluetooth connection
Qingzhong Zeng, Guangdong (CN); and Feng Zhu, Guangdong (CN)
Assigned to SHENZHEN TCL NEW TECHNOLOGY CO., LTD., Guangdong (CN)
Appl. No. 18/257,299
Filed by SHENZHEN TCL NEW TECHNOLOGY CO., LTD., Guangdong (CN)
PCT Filed Aug. 20, 2021, PCT No. PCT/CN2021/113861
§ 371(c)(1), (2) Date Jun. 14, 2023,
PCT Pub. No. WO2022/127171, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 202011465205.9 (CN), filed on Dec. 14, 2020.
Prior Publication US 2024/0048990 A1, Feb. 8, 2024
Int. Cl. H04W 12/50 (2021.01); H04W 4/80 (2018.01); H04W 12/037 (2021.01); H04W 12/041 (2021.01); H04W 76/14 (2018.01)
CPC H04W 12/50 (2021.01) [H04W 4/80 (2018.02); H04W 12/037 (2021.01); H04W 12/041 (2021.01); H04W 76/14 (2018.02)] 17 Claims
OG exemplary drawing
 
1. A Bluetooth connection method applied to a smart terminal, comprising:
establishing a connection with a Bluetooth device and binding with the Bluetooth device to obtain one or more services supported by the Bluetooth device;
obtaining a device sub-type of the Bluetooth device, and selecting a service to be connected from the services based on the device sub-type;
transmitting an audio input service request based on the selected service to the Bluetooth device, and receiving a response to the audio input service request from the Bluetooth device; and
upon receiving an audio output service request from the Bluetooth device,
generating and transmitting a response data packet to the Bluetooth device;
transmitting an encryption instruction to the Bluetooth device to perform an encryption process;
in response to determining completion of the encryption process, starting a connection to an audio input service of the Bluetooth device; and
in response to determining success of the connection to the audio input service, starting audio transmission to the Bluetooth device.