发明名称 |
MICROPHONE APPARATUS |
摘要 |
A microphone apparatus includes a microphone including first and second bi-directional microphone units having respective directional axes arranged on two straight lines passing through one point and radially extending with an interval of 120 degrees in a circumferential direction, and an omnidirectional microphone unit arranged in sound collection regions of the first and second bi-directional microphone units, and a signal synthesis unit that synthesizes at least one of respective non-inverted signals and inverted signals of the first and second bi-directional microphone units and an output signal of the omnidirectional microphone unit to generate a plurality of output signals having directional axes in mutually different directions. |
申请公布号 |
US2017026741(A1) |
申请公布日期 |
2017.01.26 |
申请号 |
US201615206635 |
申请日期 |
2016.07.11 |
申请人 |
YOSHINO Satoshi |
发明人 |
YOSHINO Satoshi |
分类号 |
H04R1/40;H04R3/04;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 |
1. A microphone apparatus comprising:
a microphone including first and second bi-directional microphone units having respective directional axes arranged on two straight lines passing through one point and radially extending with an interval of 120 degrees in a circumferential direction, and an omnidirectional microphone unit arranged in sound collection regions of the first and second bi-directional microphone units; and a signal synthesis unit configured to synthesize one of respective non-inverted signals and inverted signals of the first and second bi-directional microphone units and an output signal of the omnidirectional microphone unit to generate a plurality of output signals having directional axes in mutually different directions. |
地址 |
Tokyo JP |