发明名称 |
COMMUNICATIONS EARPIECE AND METHOD OF ATTENUATING ACOUSTICALSIGNALS |
摘要 |
A communications earpiece includes a member shaped to fit within an ear cana l. The member has a passageway extending therethrough. There is a filter communicating with the passageway. The filter has a passageway extending therethrough and is aligne d with the passageway in the member. The passageway in the filter has at least a portio n which is narrower than the passageway in the member. Preferably the passageway in the filter has a first section and a second section. The second section is narrower than the first section and the passageway in the member. A method of attenuating acoustical signals in the communications earpiece is also provided. The earpiece has a member shaped t o fit within an ear canal. The member has a passageway extending therethrough. The method comprises placing a restriction in the earpiece which is substantially narrower than t he passageway and which communicates with the passageway.
|
申请公布号 |
CA2409625(A1) |
申请公布日期 |
2003.05.09 |
申请号 |
CA20022409625 |
申请日期 |
2002.10.25 |
申请人 |
CUSTOM PROTECT EAR INC. |
发明人 |
BASKERVILLE, ORVAL |
分类号 |
H04R1/10;H04R25/00;(IPC1-7):H04R1/10;G10K11/04 |
主分类号 |
H04R1/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|