JPS5591289

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DESCRIPTION JPS5591289
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view and a front view of a conventional
directional microphone, FIG. 2 is a perspective view of the main part of the conventional
directional microphone, and FIG. A side view and a front view of a directional microphone
according to an embodiment of the present invention, FIG. 4 is a front view of another
embodiment, and FIGS. 5 and 6 are connection diagrams of main parts different from each other.
1 ······ Microphone, 3 ········ Light emitting element.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a directional
microphone, and enables the distribution of directivity to be visually identified. For example, a
dynamic microphone as shown in FIG. 1 or a condenser microphone as shown in FIG. 2 has
directivity. However, to the user, how the directivity is distributed spatially b It is the present
condition that I do not understand. '= ;:' There is a case where the sensitivity is dropped due to
mishandling and handling \, To '-'; When it is uttered from an angle of z 72, the microphone may
not be able to perform accurate acoustic-electric conversion. The present invention eliminates
such a drawback and will be described with reference to an embodiment shown in FIG. 1 is a
microphone main body, 2 is a windshield, and 3 is a light emitting element such as an LED. In
this case, light emitting element 3 is viewed from the front of the microphone 0.. Even if the
switch 4 is turned on as shown in FIG. 9, the flashing circuit 6 may be turned on when the switch
5 is turned on in addition to the switch 4 turned on as shown in FIG. It may blink. FIG. 4 shows
an example in which the light emitting element 3 is provided corresponding to the microphone of
FIG. In the embodiment of the configuration described above, the display shape is changed
according to the position of the user with respect to the microphone (the position of the user's
mouth) by keeping the display shape of the light emitting element 3 corresponding to the
directivity of the microphone. Can be seen at Now, when the display of the light emitting element
3 is viewed from the front, if there is 0 at 4 and Pew j nono 3, the user's position with respect to
the microphone will be misaligned, so it will be in an elliptical state, eventually disappears. It will
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indicate that a normal acoustic-electrical degradation is going to happen. Therefore, while visual
indication of directivity can be made by the display of the light emitting element 3, it can also be
used as an utterance end command or the like when the light emitting element 3 is in the display
state (lights up and is h). , Is advantageous for practical use. As apparent from the abovedescribed embodiments, the present invention has a great practical effect of being able to
properly display the direction having the directivity of the microphone.
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