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JPS57188198

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DESCRIPTION JPS57188198
Specification L Title of Invention
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a frequency characteristic diagram in the case
where an acceleration signal is fed back, FIG. 2 is a signal filter for signal f in FIG. 1 (frequency
characteristic diagram in the case of two passes, FIG. 5 Is a diagram of a circuit for improving the
second factor characteristic. 4 is a frequency characteristic diagram of sound pressure level in
the @ 3 circuit, FIG. 5 is a frequency characteristic diagram of the input magnetic pressure of the
speaker in FIG. 5 (-in FIG. 6 is an MFI speaker circuit according to the present invention). Fig. 7
shows an example of the expander, Fig. 7 shows an example of the expander, Ls 8 Fig. 9 is a
frequency characteristic diagram in the case of feeding back the velocity signal Characteristic
diagram, FIG. 10 is the change of the frequency characteristic corresponding to the size of the
input of the circuit of the present invention! Fig. 11 shows the magnitude of the input; Fig. 11
shows the frequency characteristics of the corresponding speaker input voltage, Fig. 12 shows
the distortion characteristics, and Fig. 14 shows the tone burst waveform. (If the town does not
have MFB; 7, then (b) shows the case where MFB is applied. (1) ... speaker, (2)--amplifier, (3) ...
detector, (4) ... expander. Fig. 1 Fig. 2 One cane Fig. 6 IN 2 End Page: 4
07-05-2019
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