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JPH09163480

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DESCRIPTION JPH09163480
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
audio system, and more particularly to a speaker system used in a personal computer.
[0002]
BACKGROUND OF THE INVENTION In many portable multimedia computing devices, it is
desirable to provide high quality sound, for example, in laptop PCs, notebook PCs and the like.
Many laptop PCs have a built-in speaker system. However, the sound quality obtained from these
speaker systems is insufficient because the acoustic volume of the space (which is necessary for
the high quality sound obtained from the speaker system) is insufficient. Therefore, high-quality
sound can be realized by using so-called desktop speakers. However, using such a speaker is not
preferable because the speaker is large and inconvenient to carry. Furthermore, such speaker
systems have been rectangular in order to facilitate their manufacture for many years. However,
such a shape is not preferable as a speaker system to be mounted on a laptop PC display, and the
reason is larger due to the required acoustic space volume, and therefore it is not aesthetically
preferable. It has also been difficult to attach these conventional square speakers to a laptop PC
display.
[0003]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a loudspeaker
device attachable to a laptop PC and having a sufficient acoustic volume.
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[0004]
SUMMARY OF THE INVENTION The loudspeaker system of the present invention comprises an
enclosure shaped to be easily attached to the back of a laptop PC display, thereby providing a
sufficient acoustic space volume, It provides high quality sound.
Specifically, high quality sound and ease of installation employ a loudspeaker enclosure having a
first leg and a second leg, which are combined to form an L-shape . The speaker enclosure is
attached to the back of the laptop PC display using one leg of this L-shaped enclosure, and the
other leg minimizes the size of the other leg visible to the user of the PC I have to. Furthermore,
for high quality sound, the L-shaped speaker enclosure, which provides the desired acoustic
space volume, allows most of the speaker enclosure to be hidden from the laptop PC user's
vision, thus aesthetically Is also preferable to the user.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION In FIG. 1, a speaker 100 of the present
invention has an enclosure 101. The clip 102 has an adhesive element 103 that attaches the
speaker 100 to the back of the display of the laptop PC. The enclosure 101 is L-shaped with a
first enclosure leg 104 having a first portion of the desired acoustic space volume. Speaker
transducers (not shown) are mounted below the grille 105 on the top outer surface of the first
enclosure leg 104. The first enclosure leg 104 has a volume control knob 106 and a directional
microphone 107. The second enclosure leg 108 of the enclosure 101 is used to provide a second
portion of the desired acoustic space volume. The second enclosure leg 108 is then mounted by
clip 102 to the back of the laptop PC display. The enclosure legs 104 and 108 combine to form a
single enclosure 101, which has the desired acoustic space volume. This is important because the
first enclosure leg 104 can give the user of the laptop PC an aesthetically pleasing impression
with a minimal size. The L-shape is obtained by the upper surface of the second enclosure leg
108 and the back surface of the first enclosure leg 104 forming a right angle (90 °). The angle
between the enclosure legs 104 and 108 does not have to be exactly right. The acoustic space
volume of the enclosure 101, i.e. the acoustic space volume of the enclosure legs 104 and 108,
depends on the speaker transducer used. Thus, the enclosure legs 104 and 108 form a threedimensional space and combine to provide the desired acoustic space volume. In one
embodiment, the overall height of the first enclosure leg 104 is 1 and 3/4 inches (44.45 mm),
the enclosure 101 is 5 inches (127 mm) in length and 4 in width. The first enclosure leg 104 on
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the second enclosure leg 108 is 1/2 inch (114.3 mm) and the thickness of the second enclosure
leg 108 is 7/8 inch (22.225 mm). The height of the back surface is 7/8 inch (22.225 mm).
[0006]
The required acoustic space volume, i.e. the size of the enclosure 101, i.e. the size of the
enclosure legs 104 and 108, is determined depending on the type of loudspeaker system desired.
At least two types of enclosures can be used for the speaker system, one of which is an acoustic
suspension enclosure and the other of which is a bass reflex enclosure. It has been found that the
size of the enclosure is minimized by achieving the desired frequency characteristics with the
extended low frequency region of the bus reflective enclosure including the tuning port (not
shown). The tuning port can be formed anywhere on the outer surface of the enclosure 101 open
to the atmosphere. The implementation of such tuning ports is known. It is also known that the
space volume required is much larger than that of a bass reflective enclosure in order to employ
an acoustic floating enclosure to obtain the desired frequency response. It is also known that the
required acoustic space volume must also be much larger.
[0007]
In this embodiment, the speaker 100 is mounted, in particular by sliding the second enclosure
leg 108 over the clip 102 and securing it there. The clip 102 can be secured to the back of the
laptop PC display using any desired adhesive. It is also preferred that the clip 102 be removable
from the back of the laptop PC display.
[0008]
In FIG. 2, a laptop PC 201 has a display 202, on which a pair of speakers 100 having an
enclosure 101 and an enclosure 101 are mounted. The speaker 100 is a so-called main unit
because it has the volume control knob 106 and the directional microphone 107, while the
speaker 100-1 is a satellite unit because it does not have the volume control knob 106 and the
directional microphone 107. However, the enclosure 101 is identical for both the speakers 100
and 100-1.
[0009]
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The speakers 100 and 100-1 mounted on the display 202 are shown in FIG. The second
enclosure leg 108 of the enclosure 101 is mounted to the back of the display 202. The second
enclosure leg 108 is invisible to the user of the laptop PC 201, thereby providing the acoustic
space volume necessary to obtain the desired sound quality from the speakers 100 and 100-1.
The clip 102 is below the second enclosure leg 108 and is not visible in this view. Further, clip
102 may be part of display 202 in certain applications. For example, clip 102 is mounted within
the back of display 202.
[0010]
In FIG. 4, the second enclosure leg 108 of the enclosure 101 is mounted on the back of the
display 202 and thus can not be seen by the user. In the figure, it can be seen that the enclosure
101 is L-shaped formed by the second enclosure leg 108 and the first enclosure leg 104.
[0011]
Although the speaker system of the present invention is shown mounted on the back of the
display 202 of the laptop PC 201 in this embodiment, the speaker 100 and the speaker system
are removed from the display and the disk is removed. It can also be used as a top speaker.
Furthermore, although the clip 102 is used to secure the enclosure 101 to the back of the display
202, such an arrangement can be easily realized by mounting the enclosure 101 on the back of
the display 202, for example. Furthermore, methods for providing audio signals and power to the
speakers 100 and 100-1 are known and do not form part of the present invention.
[0012]
Brief description of the drawings
[0013]
1 is a perspective view of a speaker having an enclosure of the present invention
[0014]
2 is a perspective view of a laptop PC having a pair of speakers according to the invention
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[0015]
Figure 3 Rear view of the laptop PC in Figure 2
[0016]
Figure 4 Top view of the laptop PC shown in Figure 2
[0017]
Explanation of sign
[0018]
Reference Signs List 100 speaker 101 enclosure 102 clip 103 adhesive element 104 first
enclosure leg 105 grille 106 volume control knob 107 directional microphone 108 second
enclosure leg 201 laptop PC 202 display
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