Noise-reducing earmuff
AssigneeGoertek Tehnology Co., Ltd.
InventorsYang Hua, Ze Wang, Xiaofeng Wen
Life of this patent
Estimating the term…
Abstract
The present disclosure discloses a noise-reducing earmuff, comprising: an earmuff shell forming an earmuff cavity; a separator being installed in the earmuff cavity and forming an independent chamber; and a conduit being installed on the separator, the conduit being provided with an opening at each of the two ends thereof; wherein one of the openings being located in the chamber, and the other extending out of the chamber and being located in the earmuff cavity; wherein the chamber and the conduit form a low-frequency resonator whose resonance frequency is equivalent to a corner frequency of a low-pass filter formed by the earmuff.
Claims5
A noise-reducing earmuff, comprising:
- an earmuff shell, forming an earmuff cavity;
- a separator, being installed in the earmuff cavity and forming an independent chamber;
- and a conduit being installed on the separator, the conduit being provided with an opening at each of two ends thereof;
- wherein one of the openings being located in the chamber, and the other extending out of the chamber and being located in the earmuff cavity;
- wherein the chamber and the conduit form a low-frequency resonator whose resonance frequency is equivalent to a corner frequency of a low-pass filter formed by the earmuff, wherein the earmuff is in a headphone, the chamber is a rear cavity of a speaker in the earmuff, and a separator is provided in the rear cavity of the speaker, wherein the separator is configured such that when the speaker outputs sound, the separator blocks the opening of the conduit located in the chamber;
- and when the speaker outputs no sound, the separator is apart from the opening of the conduit located in the chamber.
Dependencies are inferred from the claim text.