US 12,432,479 B2
Earphone and mobile terminal
Xiangao Song, Shenzhen (CN); Rongrong Wu, Dongguan (CN); Chengxia Ji, Dongguan (CN); Yong Zheng, Dongguan (CN); and Zhengxue Li, Shenzhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Feb. 27, 2023, as Appl. No. 18/174,717.
Application 18/174,717 is a continuation of application No. PCT/CN2021/115741, filed on Aug. 31, 2021.
Claims priority of application No. 202010900041.1 (CN), filed on Aug. 31, 2020; and application No. 202110988228.6 (CN), filed on Aug. 26, 2021.
Prior Publication US 2023/0224620 A1, Jul. 13, 2023
Int. Cl. H04R 1/10 (2006.01); H04R 1/08 (2006.01)
CPC H04R 1/1016 (2013.01) [H04R 1/08 (2013.01); H04R 2201/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An earphone comprising: a housing and a speaker assembly, wherein
the housing internally comprises a front cavity and a rear cavity that are separated by the speaker assembly, wherein the front cavity is located on one side that is of the speaker assembly and that is a sound output direction, and the rear cavity is located on an opposite side of the sound output direction of the speaker assembly; and
a sound guide channel is at least partially disposed in a sidewall of the housing with two openings on the outer surface of the housing, and the sound guide channel is configured to: when the earphone is normally worn, connect air inside an ear canal of a user to the air outside the ear canal without connecting the air in the front cavity to the air in the rear cavity.