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1. Power supply system to the sound collection microphone of the invention (1) In the power
supply system to the fruit microphone arranged near the alarm iA unit, the alarm as the power
supply to the tone microphone! i! A 1M source supply system to a tone microphone unit
characterized by using 'power supplied to one unit.
2, the scope of claims
3. Detailed Description of the Invention The present invention relates to an 'e willow supply
system to a sound collecting microphone. In general, in the case of the transmission of a
command (for example, dam release #, warning @), it is necessary to 4fMu whether or not the
transmission is surely performed. As one of the wide-ranging confirmations, a tone microphone is
provided in the vicinity of the f-information speaker, and the alarm sound generated from the
alarm speaker is confirmed by the output of the sound collection microphone. By the way, to the
above-mentioned conventional tone microphone section! As a willow supply system, it is
considered common practice to supply the t121it by valveing the power supply cable 3 for the
sound collection unit to the sound collection microphone river amplifier 2 of the sound collection
microphone 1 as shown in FIG. Therefore, at least three cables of the speaker cable 6 for
supplying sound source power from the power amplifier 4 to the alarm speaker 5, the musical
tone cable 7 and the musical tone unit * m cable 3 have been required. The present invention has
been made in view of the above-mentioned circumstances, and the t # cable for the sound
collecting unit is omitted by utilizing a part of the sound source power supply to the speaker as
the power supply of the sound collecting microphone unit. It aims at providing a power supply
system for The present invention will be described in detail with reference to the attached
drawings. FIG. 2 shows an embodiment of a system for supplying a sound source to a tone
microphone according to the present invention. The rectangular amplifier 10 omits the voice
information to be transmitted, and adds the amplified voice information (sound source car
power) to the budget speaker 12 and the 1f source unit 13 via the speaker cable 1. The '1 r
source unit 13 includes, for example, a rectifier circuit, and generates a constant voltage
according to the input source power. This constant voltage is supplied to the musical tone
microphone window 14 and is used as a microphone for the microphone 14 as a willow. The
tone microphone amplifier 14 receives the sound of the W-report speaker 120, amplifies the
electric signal output from the tone microphone, and transmits the amplified electric signal to the
tone cable 16. According to the above method, it is possible to delete the heavy-speed cable to
the tone microphone L @ width unit 14 which has conventionally been regarded as common
sense. As described above, according to the present invention, since a part of the vine-source
vinegar force is used as a power source for the tone microphone section, the city source cable to
the tone microphone section can be omitted. It is possible to provide a power supply system for
4. Brief description of the drawings FIG. 1 is a block diagram showing a conventional power
supply system to a sound collection microphone, and FIG. 2 is a block showing an embodiment of
a jewelry supply system to a sound collection microphone according to the present invention FIG.
1, I5: tone microphone, 2. I4 ... tone microphone amplifier, 3 ... tone unit for acid source cable,
4,10 ... 酊力 cake width unit, 5,12 ... warts, paper speaker, 6,1] ... · Cable for speaker, 7.16 · · ·
Cable for tone, 13 · · · Power supply section. イc:Igll! Human Patent Attorney General
Noriyuki Kon ((, 1 or Kyo) EndPage: 2
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description, jps5781800
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