JPH01137799

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DESCRIPTION JPH01137799
[0001]
FIELD OF THE INVENTION The present invention relates to an audio device including a speaker
of a home television receiver. 2. Description of the Related Art In general, the directionality of the
sound of a home television receiver has hardly been considered. In addition, even in the voice
apparatus having some directivity, the weak directivity in the forward direction was fixed. FIG. 2
is a front view of an example of a conventional television receiver, in which speakers 6 are
attached to the left and right sides of the front surface of the body 10 to which the cathode ray
tube 7 of the television receiver is attached. [Problems to be Solved by the Invention] This home
television receiver is often used in a room at -m, and there are often people who want to see and
people who do not want to see at the same time. About this television picture, it is good if people
who don't watch don't watch it, but as for sound, people who want to hear it want it to be as
small as possible, and those who want to see want to make it loud. In such a case, headphones
may be used, but the headphones require a cord and are inconvenient, the way of feeling the
sound is different, and often unnatural. Therefore, it is desirable that strong sound only reach the
position of the viewer without headphones as much as possible. An object of the present
invention is to provide an audio device for a television receiver, in which the audio can be
delivered only in a predetermined direction. [Means for Solving the Problems] The configuration
of the audio device for a television receiver according to the present invention includes a hornlike speaker having directivity in the audio output, and a speaker for directing and rotating this
horn-like speaker in a predetermined direction A driving unit and a non-scattering mechanism
provided on the front of the horn-shaped speaker to prevent scattering of sound are provided,
and the speaker driving unit can be remotely controlled. The invention will now be described in
detail by means of the drawings. 1 (a), (b) and (c) are a cross-sectional view of a lower portion of
a television receiver using an embodiment of the present invention, and a cross-sectional view
and a front view thereof taken along the line x-x '. In this embodiment, the directional speaker 1
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and the non-scattering exterior structure 3 are provided on the lower portion of the screen of the
television receiver on which the Braun tube 7 is mounted. In this directional speaker, the horn is
elongated to improve the directivity as much as possible, and the horn portion can be rotated
about the rotation axis 4 by the rotation axis holding portion 5 at the base. The rotating shaft 4
of the speaker 1 is connected to a motor mechanism 2 capable of rotating in the forward and
reverse directions so that the direction of about 180 ° can be changed. In addition, the sound
non-scattering exterior structure 3 is provided at the sound outlet of the front of the speaker 1,
and the sound from the speaker 1 is dispersed using a material having a shape material that
minimizes diffuse reflection, and the direction thereof I try not to disturb the sex.
A location other than this directional speaker 1 has the same shape as that of a conventional
television receiver. However, a directional control switch and directivity adjustment button are
added to the conventional television remote controller, and a channel is provided. Enable remote
control at the same time as switching and volume control. The directional speaker 1 or the
normal speaker 6 is switched by the changeover switch of the remote controller, and the motor
mechanism 2 is driven by the directivity adjustment button to direct the directional speaker 1 in
a desired direction in the living room. Can. [Effects of the Invention] As described above,
according to the present invention, the direction of the directional speaker is adjusted while the
viewer of the television listens to the sound by the remote control at that position, and the
volume is adjusted after the directivity direction is optimally adjusted. By doing this, the sound of
the television reaching the person in the other direction of the room becomes considerably small,
and the person has an effect of squeezing the sound. In particular, although high frequency
sounds are audible, directivity is higher as high frequency sounds, so this effect is large.
[0002]
Brief description of the drawings
[0003]
1 (a), 1 (b) and 1 (c) are sectional views of the lower side of a television receiver using an
embodiment of the present invention, a sectional view and a front view of a side, and FIG. It is a
front view of an example of a machine.
DESCRIPTION OF SYMBOLS 1 ... Directional speaker, 2 ... Motor mechanism, 3 ... Non-scattering
exterior structure, 4 ... Rotation axis, 5 ... Rotation axis holding part, 6 ... Speaker. Braun tube, 10
··· Body.
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