发明名称 |
ON-VEHICLE ACOUSTIC DEVICE |
摘要 |
PROBLEM TO BE SOLVED: To output transportation information at proper sound pressure regardless of the percentage modulation of transportation-information broadcasting and the intensity of radio waves even in the case of changeover to a transportation-information broadcasting mode in an on-vehicle acoustic device. SOLUTION: A sound-pressure adjusting means 131 for an audio processing section 13 is controlled by a microcomputer section 21 when a mode is changed over to the transportation-information broadcasting mode by a transportation- information button 23 for an operating section 22, and the sound pressure of transportation-information broadcasting is adjusted automatically at a reference level and output to an audio amplifying section 14 when the sound pressure received by a radio reception section 12 differs from the fixed reference level.
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申请公布号 |
JP2002095082(A) |
申请公布日期 |
2002.03.29 |
申请号 |
JP20000277548 |
申请日期 |
2000.09.13 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
NAKAMURA TSUNEO |
分类号 |
B60R11/02;H04B1/16;H04R3/00;(IPC1-7):H04R3/00 |
主分类号 |
B60R11/02 |
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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