The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2025
Filed:
Dec. 18, 2021
Huawei Technologies Co., Ltd., Shenzhen, CN;
Tienan Zhang, Dongguan, CN;
Haibo Shan, Dongguan, CN;
Yan Li, Shenzhen, CN;
Dasheng Mo, Dongguan, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
An earphone is provided, and includes a housing, a loudspeaker, and a noise cancellation microphone, the housing comprises an internal space, and a sound pickup channel. The noise cancellation microphone is connected to the communication surface by the sound pickup channel. The housing comprises an outer housing and a frame, the housing is provided with the internal space and a communication hole, and the frame is provided with a communication surface facing the communication hole. The communication surface comprises a sound-emitting hole and a sound pickup hole, the sound-emitting hole and the sound pickup hole are isolated from each other, and the sound-emitting hole is connected to the front cavity. The sound pickup channel and the front cavity are isolated from each other through the frame.