发明名称 |
Microphone for use on location |
摘要 |
A microphone designed for use on location provided with amplification to produce a signal output level suitable for use on conventional studio cables and utilizing the Phantom power available on such studio cables, the microphone having a light emitting diode responsive to elevation of the potential of the Phantom power on the cable, but not the normal potential thereof, to indicate the presence of a live microphone, the microphone also being provided with a backup battery for use in the event Phantom power is not available, and the microphone being provided with a free running multivibrator coupled to the light emitting diode and having a repetition rate proportional to the potential of the backup battery to give an indication of battery voltage.
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申请公布号 |
US4567608(A) |
申请公布日期 |
1986.01.28 |
申请号 |
US19840592411 |
申请日期 |
1984.03.23 |
申请人 |
ELECTRO-VOICE, INCORPORATED |
发明人 |
WATSON, ALAN R.;OVERLEY, JOHN P. |
分类号 |
H04R1/08;(IPC1-7):H04R3/00 |
主分类号 |
H04R1/08 |
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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