发明名称 |
HEARING DEVICE |
摘要 |
A hearing device has an electrical/acoustical output converter (10) that communicates with ambient air through a membrane (14). The membrane separates two spaces (R1, R2). The spaces communicate through a passage (18N) that substantially blocks acoustical signals in the range of the audible spectrum and passes acoustical signals at a frequency lower than the audible spectrum.
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申请公布号 |
CA2427783(A1) |
申请公布日期 |
2003.11.24 |
申请号 |
CA20032427783 |
申请日期 |
2003.05.02 |
申请人 |
PHONAK AG |
发明人 |
MEIER, HILMAR;VONLANTHEN, ANDY |
分类号 |
H04R25/00;(IPC1-7):H04R25/00 |
主分类号 |
H04R25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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