发明名称 |
Active noise suppression in hearing-aids |
摘要 |
<p>The device has a second microphone (6) that acquires a second acoustic signal from a first region of a ventilation channel (5) and converts it into a second electrical microphone signal, which is fed to a filter device (7), which outputs an electrical signal to a second receiver (8), which outputs a second acoustic earpiece signal region of the ventilation channel to inhibit an acoustic signal entering a closed ear canal volume from the outside.</p> |
申请公布号 |
EP1499159(A2) |
申请公布日期 |
2005.01.19 |
申请号 |
EP20040009707 |
申请日期 |
2004.04.23 |
申请人 |
SIEMENS AUDIOLOGISCHE TECHNIK GMBH |
发明人 |
CHALUPPER, JOSEF;LIPSKI, WERNER;RASS, UWE |
分类号 |
A61F11/14;G10K11/178;H04R3/02;H04R25/00;(IPC1-7):H04R25/00 |
主分类号 |
A61F11/14 |
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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