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JPH05300582

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DESCRIPTION JPH05300582
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker apparatus used for video equipment such as a television receiver and an audio apparatus
for a car, and a television receiver support using the same.
[0002]
2. Description of the Related Art A typical example of a conventional speaker apparatus using an
acoustic tube will be described with reference to the drawings. FIG. 4 is a perspective view of a
conventional built-in speaker device. In FIG. 4, reference numeral 13 denotes an opening having
a long and thin rectangular shape in consideration of incorporation into a device. 14 is a sound
conduit for guiding the sound wave of the configuration having the opening 13. Reference
numeral 15 is a speaker unit for full band reproduction. The speaker unit 15 is fixed to the sound
conduit 14 on the side opposite to the opening 13.
[0003]
FIG. 5 is a perspective view in which a part of the state where the above-mentioned speaker
device is mounted on a television receiver is cut away. In FIG. 5, reference numeral 16 denotes a
cabinet of the television receiver. 17 is the above-mentioned speaker device. 18 is a cathode ray
tube. The speaker device 17 is disposed inside the cabinet 16 so as to be sandwiched with the
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cathode ray tube 18.
[0004]
An electrical input is applied to the speaker device in the television receiver configured as
described above to perform sound reproduction.
[0005]
In recent years, reception of BS broadcasts and the like has been required also for low-inch
television, and high-quality sound and wide-band reproduction have been required.
[0006]
However, in the above-described conventional configuration, since sound reproduction is
performed only by the speaker device 17 incorporated in the television receiver, both the sound
quality and the reproduction band are limited, and in particular, it has not been satisfactory in
the bass region reproduction.
[0007]
SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional
problems, greatly expands the reproduction bandwidth of low-inch television etc., and
reproduces high sound quality especially powerful deep bass reproduction and ideal sound
reproduction at the optimum viewing position. It is an object of the present invention to provide
a speaker device capable of
[0008]
SUMMARY OF THE INVENTION In order to solve this problem, the present invention is
configured to have an acoustic filter which is functionally narrowed toward an opening having a
rectangular shape from the speaker vibration surface and then spreads over the vibration surface
area. A television receiver comprising a sound conduit for guiding an acoustic wave, a back cover
provided on the other surface, and a speaker device having a recessed top surface, and a signal
amplification device for driving the speaker device At the same time, an electrical input is applied
to a speaker device in a television receiver arranged such that the front face of the cabinet has an
angle with the horizontal on the table, and sound reproduction is performed.
[0009]
In the television receiver in which the front of the cabinet is disposed at an angle to the
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horizontal on the television receiver base on which the speaker device of the present invention is
mounted with the opening directed to the front. By combining the speaker device of the present
invention with the above-described speaker device, the reproduction band can be greatly
expanded, high-quality sound reproduction, in particular, powerful deep bass reproduction can
be performed, and ideal sound at the optimum viewing position. It is possible to perform
regeneration.
[0010]
An embodiment of the present invention will be described below with reference to the drawings.
[0011]
FIG. 1 is a perspective view showing the configuration of a speaker device dedicated to lowfrequency range reproduction according to an embodiment of the present invention from the
direction of an opening.
In FIG. 1, reference numeral 1 denotes a rectangular opening.
2はバックカバーである。
Reference numeral 3 denotes a sound conduit for guiding a sound wave having an acoustic filter
that narrows functionally toward the opening 1 having a rectangular shape from the speaker
vibration surface and then spreads over the vibration surface area.
4 is a speaker unit for low range reproduction.
The back cover 2 is fixed to the sound conduit 3 on the opposite side of the opening 1.
The above-mentioned speaker device is configured to have a top surface recessed.
[0012]
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FIG. 2 is a perspective view showing a state in which a television receiver is overlaid on the
television receiver stand which incorporates the above-mentioned speaker device and a signal
amplification device for driving the above-mentioned speaker device, using a depression of a top
plate. It is.
In FIG. 2, 5 is a top plate. 6 is the said speaker apparatus. 7 is a bottom plate. 8 is a cabinet of a
television receiver. Reference numeral 9 denotes a conventional built-in speaker device. 10 is a
cathode ray tube.
[0013]
The top plate 5 has a shape in which the central portion is recessed so that the television receiver
can be disposed so that the front face of the cabinet has an angle with the horizontal. The
speaker device 6 is built in the television receiver stand so as to be sandwiched between the top
plate 5 and the bottom plate 7. Further, the conventional built-in speaker device 9 is disposed
inside the cabinet 8 of the television receiver so as to be sandwiched with the cathode ray tube
10.
[0014]
FIG. 3 is a perspective view showing the above-mentioned speaker device 6 and a television
receiver holder with a built-in signal amplification device for driving the above-mentioned
speaker device 6 from the direction opposite to the opening. In FIG. 3, reference numeral 11
denotes a signal amplification device for driving the speaker device 6. Reference numeral 12
denotes an audio input terminal for connecting a device to the signal amplification device 11.
[0015]
An electrical input is simultaneously applied to the speaker device 6 of the present invention
configured as described above via the audio input terminal 12 and the signal amplification device
11 to perform acoustic reproduction at the same time as the conventional built-in speaker device
9 As a result, the reproduction band is greatly expanded, the effect of the large improvement can
be obtained with respect to high-quality sound reproduction, in particular, deep bass
reproduction, and ideal sound reproduction can be performed at the optimum viewing position.
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[0016]
In addition, although the speaker apparatus characterized by having a signal input terminal as
one Example of this invention and the television receiver stand which incorporated this were
demonstrated, the audio signal output terminal for external apparatus connection is provided. It
is also possible and does not add any restriction to the contents of the present invention.
[0017]
As described above, the speaker device according to the present invention is incorporated in the
television receiver holder, applies an audio signal through the signal amplification device
incorporated in the same, and also applies to the television receiver holder. At the same time, by
applying to the speaker device in the television receiver arranged so that the front face of the
cabinet has an angle to the horizontal at the same time and performing the sound reproduction,
the reproduction band is greatly expanded and the high sound quality It is possible to perform
reproduction, particularly powerful deep bass reproduction, and to perform ideal sound
reproduction at an optimum viewing position.
[0018]
Furthermore, it is needless to say that the television receiver stand in which the speaker device of
the present invention is built can be used as a single speaker device only for reproducing the low
frequency range.
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