发明名称 |
Sound apparatus and teleconference system |
摘要 |
<p>A sound apparatus includes: a sound output that forms sound waves having opposite phases in a front direction and a rear direction, respectively; a front microphone that collects the sound wave formed in the front direction; a rear microphone that collects the sound wave formed in the rear direction; and a signal processor that combines the signal collected by the front microphone and the signal collected by the rear microphone and outputs the resultant signal.</p> |
申请公布号 |
EP1615414(A2) |
申请公布日期 |
2006.01.11 |
申请号 |
EP20050014995 |
申请日期 |
2005.07.11 |
申请人 |
YAMAHA CORPORATION |
发明人 |
TAMIYA, KENICHI;KUSHIDA, KOJI;FUJI, SHIGEKI |
分类号 |
H04M3/56 |
主分类号 |
H04M3/56 |
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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