US 11,956,585 B2
Bluetooth earphone
Junhong Zhang, Dongguan (CN); Yi Fan, Dongguan (CN); and Zhongying Long, Shenzhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Appl. No. 17/771,576
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
PCT Filed Oct. 14, 2020, PCT No. PCT/CN2020/120866
§ 371(c)(1), (2) Date Apr. 25, 2022,
PCT Pub. No. WO2021/082916, PCT Pub. Date May 6, 2021.
Claims priority of application No. 201911056997.1 (CN), filed on Oct. 31, 2019.
Prior Publication US 2022/0417636 A1, Dec. 29, 2022
Int. Cl. H04R 1/10 (2006.01); H01Q 1/48 (2006.01); H01Q 1/50 (2006.01)
CPC H04R 1/1016 (2013.01) [H01Q 1/48 (2013.01); H01Q 1/50 (2013.01); H04R 1/1041 (2013.01); H04R 2420/07 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A bluetooth earphone comprising:
an earbud part, wherein the earbud part is provided with an earpiece module;
an earphone handle part, further comprising:
a connecting section connected to the earbud part,
a top section and a bottom section located at both sides of the connecting section, wherein the bottom section of the earphone handle part is provided with a first microphone module;
an antenna, wherein the antenna extends from the connecting section of the earphone handle part to the top section of the earphone handle part; and
a circuit board further comprising:
a feeding part located at the connecting section of the earphone handle part,
a first end part located at the earbud part,
a first connection part that connects the feeding part and the first end part,
a second end part located at the bottom section of the earphone handle part,
a second connection part that connects the feeding part and the second end part,
a feeding pad located at the feeding part and coupled to the antenna,
a ground plane located at the feeding part and spaced from the feeding pad,
a first grounding branch wherein one end of the first grounding branch is connected to the ground plane, the other end of the first grounding branch extends to the first end part, and the first grounding branch is connected in series to a first switch, and
a second grounding branch, wherein one end of the second grounding branch is connected to the ground plane, the other end of the second grounding branch extends to the second end part, and the second grounding branch is connected in series to a second switch.