US 12,457,403 B2
Connection establishment method and electronic device
Xingong Zhang, Xi'an (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Appl. No. 18/264,735
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
PCT Filed Dec. 20, 2021, PCT No. PCT/CN2021/139682
§ 371(c)(1), (2) Date Aug. 8, 2023,
PCT Pub. No. WO2022/170856, PCT Pub. Date Aug. 18, 2022.
Claims priority of application No. 202110182055.9 (CN), filed on Feb. 9, 2021.
Prior Publication US 2024/0098354 A1, Mar. 21, 2024
Int. Cl. H04N 23/57 (2023.01); H04N 23/65 (2023.01)
CPC H04N 23/57 (2023.01) [H04N 23/65 (2023.01)] 17 Claims
OG exemplary drawing
 
1. A connection establishment method, wherein the method is applied to a system comprising a first electronic device and an external camera, and the external camera is not connected to the first electronic device, and the method comprises:
sending, by the first electronic device, a probe frame to the external camera;
in a process in which the external camera approaches the first electronic device, powering on a communication module in the external camera;
obtaining, by the external camera, the probe frame;
based on the probe frame, starting, by the external camera, a camera module in the external camera; and
sending, by the external camera, a response frame to the first electronic device, wherein the response frame is a reply to the probe frame,
wherein the starting a camera module in the external camera comprises:
connecting, by the communication module in the external camera, a circuit between a power supply module in the external camera and the camera module in the external camera based on a start signal; and
starting the camera module in the external camera.