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JPS59114696

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DESCRIPTION JPS59114696
[0001]
Brief description of the drawings
[0002]
FIG. 1 is a schematic block diagram of an embodiment of the present invention. FIG. 2 is a layout
diagram of the microphone shown in FIG. FIG. 3 is a view showing the relationship between the
microphone and the sound source position shown in FIG. FIG. 4 is a diagram showing the
directivity characteristic of the embodiment shown in FIG. FIG. 5 is a layout view of microphones
according to another embodiment of the present invention. FIG. 6 is a schematic block diagram
of the embodiment shown in FIG. FIG. 7 is a layout view of microphones according to another
embodiment of the present invention. FIG. 8 is a schematic block diagram of the embodiment
shown in FIG. In the figure, 1a to 1j are microphones, 2 ° 3.6 to 11, 19, 20.23 are adders, 4, 5.
12 to 18 are amplifiers and 21.22 is a band pass filter.
03-05-2019
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