发明名称 |
UNIDIRECTIONAL SECOND ORDER GRADIENT MICROPHONE |
摘要 |
A second order gradient microphone with unidirectional sensitivity pattern is obtained by housing each of two commerically available first order gradient microphones centrally within a baffle. The baffles have flat surfaces, are preferably square or circular and have parallel surfaces the two baffles being parallel to each other. The rotational axes of the microphones are arranged to coincide. The output signal from one of the microphones is subtracted from the delayed signal output of the other. |
申请公布号 |
JPS61150600(A) |
申请公布日期 |
1986.07.09 |
申请号 |
JP19850285897 |
申请日期 |
1985.12.20 |
申请人 |
AMERICAN TELEPH & TELEGR CO <ATT> |
发明人 |
GERUHARUTO MARUTEIN ZESURAA;JIEEMUSU EDOWAADO UESUTO |
分类号 |
H04R1/40;H04R3/00 |
主分类号 |
H04R1/40 |
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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