Back to results
US 9,319,771 B2Granted
Earphone
AssigneeInnovation Sound Technology Co., Ltd.
InventorShun Ming Yuen
Life of this patent
Estimating the term…
Abstract
The present invention relates to an earphone, which comprises a shell, a speaker arranged in said shell, an sound chamber corresponding to said speaker and an E&M, in which the sound emission hole is arranged in said E&M, and connected with said sound chamber; the earphone also comprises a normally closed pressure relief channel used for connecting the said sound chamber and the outside, and connected when a user puts said E&M in the ear canal.
Claims10
An earphone, comprising:
- a shell;
- a speaker arranged in said shell;
- a sound chamber corresponding to said speaker;
- an earpiece having a sound emission hole arranged therein and connected with said sound chamber;
- and
- a pressure relief channel having an open position connecting said sound chamber to an outside of said shell and a closed position in which said sound chamber is not connected to an outside of said shell by said pressure relief channel, wherein said pressure relief channel is switched from said closed position to said open position by the effect of friction force of an internal surface of a user's ear canal transferred to said earpiece when a user puts said earpiece in the user's ear canal.
3 more elements
Dependencies are inferred from the claim text.