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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an example suitable for
implementing the device of the present invention, FIG. 2 is a view showing an overview of a
device according to the present invention, and FIGS. 3 and 4 are devices of the present invention.
FIG. 5 shows a first embodiment of the present invention and FIG. 5 'shows a second embodiment
of the device of the present invention. 1 ······ Magnetic head, 2 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · left and right balance adjustment volume, '4 · · · · · volume
adjustment volume, 5 · · · · · · Power amplifier, 6 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Plate, 15 ° 17 ···········
Lever, 16, 20, 22 ········ Lead wire, 18 ··· Light emitting element, 19 ·································· ...
The present invention relates to an acoustic display device, and more particularly to an
illuminated pictorial display device for facilitating front-rear and left-right volume control and
operation of a stereo device using four speakers. A stereo system using four conventional
speaker systems, ") to 521 days A3? For example, in the case of a two-channel stereo device in
which speakers are arranged at the front and rear of the cabin in one unit (for example, a fourchannel stereo or an in-vehicle stereo unit), There are two parts, one for adjusting the volume
balance and the other for adjusting the volume balance before and after. Unlike the volume
adjustment volume, it is difficult to determine which position is best for such a volume, so a slidetype volume is adopted that makes it easy to determine the outline according to the position of
the knob at the very least. ing. However, in reality the visual position of the knob does not match
the auditory balance, and in the on-vehicle acoustic device, since it is necessary to make an
instantaneous judgment, the sound image position is more rapidly compared to the household
acoustic device. There is a need for a display device that can be grasped and adjusted so that
anyone can easily obtain an arbitrary sound localization position. The present invention is
considered in consideration of the above-mentioned processing circumstances, and the
reproduction sound field is displayed as a picture, and the processing sound which can confirm
the balance point position of the sound visually there is a purpose (2) sound-wave display device
It is said that. According to the present invention, while providing a picture display board on
which a speaker or the like is drawn according to the arrangement, the sound is displayed so as
to represent the operating point of the two actuators interlocked with the back and forth
adjustment volume and the left and right adjustment volume of the acoustic device. In the
acoustic display device in which the position of the balance point can be visually confirmed, a
large number of self-light emitting elements are juxtaposed at one of the two actuators at
appropriate intervals, and the other actuator vc According to another aspect of the present
invention, there is provided an acoustic display device, comprising: a terminal for contact power
supply to the spontaneous element; and a position of an operating intersection point by contact
of the terminal can be confirmed by the corresponding spontaneous yt and lighting of the
element. Hereinafter, preferred embodiments of the present invention illustrated in the attached
drawings will be described in detail. FIG. 1 shows a stereo system according to the invention
which is preferably implemented and is a dairy system, as an example of which a block diagram
of an on-vehicle 4-speaker 2-channel tape stereo system is shown. According to the stereo device
of FIG. 1, (3) for 2 channels. There is a '+ 5U' magnetic head 1 whose output is connected to the
input of each channel of the preamplifier 2.
Each output of the preamplifier 2 is referred to as a left-right balance adjustment volume
(hereinafter simply referred to as a balance volume. 3) and the volume control volume 4 are
connected. The movable terminal of the balance volume 3 is dropped to the ground, and the
movable terminal of the volume adjustment volume 4 is connected to each input of the power
amplifier 5. Each output of the power amplifier 5 is referred to as a front / back balance
adjustment volume (hereinafter simply referred to as a fader volume. The fixed terminal
connected to the movable terminal of 6), both of its fixed terminals are dropped to the ground
with four speakers each 7 n. In FIG. 1, the front speaker of the left channel is indicated by the
symbol LP, the rear speaker of the same channel is indicated by the symbol, the front speaker of
the right channel is indicated by the symbol RF, and the rear speaker of the same channel is
indicated by the symbol. FIG. 2 shows an example of the acoustic display device according to the
present invention. In FIG. 2, reference numeral 10 denotes a knob for the balance volume 3, 11
denotes a balance pointer associated with the volume, 12 denotes a knob for the 7 ader (4)
volume 6, and 13 denotes a fader pointer associated with the volume. The symbol% 14 is a
picture display board that depicts the arrangement of speakers, listeners (drivers) and seats. Each
of the balance volume 3 and the fader volume 6 is a slide type volume, and they are arranged in
the slide directions ((oppositely, they are disposed at a right angle to each other. The balance
volume 3 is arranged to slide left and right with respect to the picture display plate 14, and the
fader volume is arranged to slide forward and backward with respect to the picture display plate
14. Each pointer 11.13 projects at a right angle to the sliding direction of each volume and
moves in parallel in the sliding direction IC. In FIG. 2, when the knob 10 is moved back and forth
from side to side, and the knob 12 is moved back and forth, there is one crossing point of the
pointer 11.13, and this point is a balance of synthesized sound from the four speakers. It is a
point that This intersection point is marked on the picture display board 14 by a self light
emitting element represented by a light emitting diode. Next, the mechanism of light emission of
the spontaneous element is shown in FIG. 3 (5) i.-z, 7-. 鼾 ′]), ν processing will be described
with reference to FIG. In g7, the balance volume 3 is 141,% 1 °, more t / ′ ′-15t-1e? □、。
7、ケリれる。 A pointer 11 is fixed to the lever 15 by an appropriate means, and a small upper
surface of the pointer 11 is made of a conductive material, and the conductor is connected to a
ground by a lead wire 16. On the other hand, the phaser volume 6 is also manually moved
through the lever 17 by the knob 12.
The pointer 13 is fixed to the lever 17 by an appropriate means. The pointer 13 is molded by
arranging a plurality of self-light emitting elements 18 in a row at an appropriate interval. That
is, as shown in FIG. 4, the light emitting portion of the spontaneous element 18 is molded on the
upper surface of the pointer 13 and the individual self-light emitting element power supply
terminals 19 are disposed on the lower surface. The terminals of one polarity of each
spontaneous element 18 are collectively connected n and connected to the lead wire 20 n.
Working on the above construction, at the intersection of each of the pointers 11 and 13, the
corresponding light emitting element 18 becomes conductive (6) and the light emitting element
18 emits light, The display @ 14 is illuminated from the back in a spot shape. As a result, the
localization position of the sound box is marked by light emission on the picture display board
14. FIG. 5 shows another embodiment according to the present invention. In the embodiment of
FIG. 3, although the light emission positioning of each spontaneous element 18, that is, the
switching action is performed by the contact between each contact provided on the lower surface
of the pointer 13 and the conductor provided on the upper surface of the pointer 11. On the
other hand, in the embodiment of FIG. Each light emitting element 18 is switched by using a light
contact slide switch 21 interlocked with 3. That is, the pointer 13 interlocked with the fader
volume 6 is formed as shown in FIG. It is connected to the terminal corresponding to the pair I Qr
+ of the contact switch 21. If it is completed in this execution row, the work pointer 11 in the
execution row in FIG. 3 becomes a small pot. According to the present invention, since the
localization position of one sound and the dragon are displayed on the picture display board as
the bright point KL, a large number of speakers such as four-speaker, (7), one, and a speaker
system It is possible to instantaneously recognize the balance point of the sound in the
reproduction sound field using the above and visually recognize it, and it is particularly suitable
for the mounting sound J device. And since the cutting of the sound of front and rear, right and
left appears on the drawing as well as the pressure of each volume, the operation of 1 alignment
is easy. Although the present invention has been described in detail with respect to its preferred
embodiments, the present invention is not limited to this specific embodiment and many
variations and modifications are possible without departing from the spirit of the present
invention. For example, although the pointer in which the light emitting element is molded is
configured to be interlocked with the fader volume 6, it goes without saying that such a pointer
may be combined with the balance volume 3 and configured.
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