发明名称 |
Moving object equipped with ultra-directional speaker |
摘要 |
A moving object 1 equipped with ultra-directional speaker is provided with an emitter 44 for measuring a distance to a target 11 to which it is to provide a voice by using an ultrasonic transmit sensor 45 and an ultrasonic receive sensor 46 thereof, and for emitting an output signal having a predetermined sound level which is adjusted by an amplifier 34 with sound level adjusting function. The moving object 1 can thus transmit a voice having an optimal volume only to the specific target through parametric action.
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申请公布号 |
US2007172076(A1) |
申请公布日期 |
2007.07.26 |
申请号 |
US20050588816 |
申请日期 |
2005.02.10 |
申请人 |
MORI KIYOFUMI;YOSHIDA SHUNJI;OKUNO HIROSHI;NAKADAI KAZUHIRO;TSUJINO HIROSHI |
发明人 |
MORI KIYOFUMI;YOSHIDA SHUNJI;OKUNO HIROSHI;NAKADAI KAZUHIRO;TSUJINO HIROSHI |
分类号 |
H04B3/00;G10L15/20;H04R1/02;H04R1/32;H04R1/40;H04R3/00;H04R3/12;H04R5/027;H04S7/00 |
主分类号 |
H04B3/00 |
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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