JP3048252U - Notebook computer - Google Patents

Abstract

(57) [Summary] To provide a notebook computer having a speaker configuration capable of expressing extremely excellent sound quality. SOLUTION: The entire audible audio frequency band is divided into a middle / high frequency band and a low frequency band with a boundary of 600 Hz. Sound from the sound source 20 is input to the equalizer 22 through the audio IC 21. When the voice input from the audio IC 21 is higher than 600 Hz, the equalizer 22 outputs the voice to the whole-range speaker device 30 via the audio frequency amplifier 23. On the other hand, when the voice is lower than 600 Hz, the equalizer 22 outputs the low-pass filter 24. And audio frequency amplifier 25
To the bass range speaker device 40 via the. Each sound output from the full-range speaker device 30 and the low-range speaker device 40 is sent to the mixer 26, where it is mixed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a speaker configuration of a notebook computer.

[0002]

[Prior art]

 Conventionally, the external shape of a notebook computer has been designed to be thin and short in consideration of the portability of a user, so that a space for mounting a speaker has been limited. FIG. 6 is a perspective view showing a schematic configuration of a conventional notebook computer. The notebook computer 10 is generally assembled by a liquid crystal display 11 and a main body 12. Then, one set of the speaker unit 13 is randomly attached to the main body 12.

[0003]

[Problems to be solved by the invention]

 Conventional notebook computers have the following problems. First, the range of audio frequencies that can be heard by humans, that is, the audible audio frequency band is 20 Hz to 20 kHz. However, a single set of small speakers 13 cannot cover all audible audio frequency bands. However, the characteristics have not been fully exhibited. At present, most of the loudspeakers installed in a general notebook computer are medium and high frequency loudspeakers, and their audible and audible frequencies are 600 Hz or higher. Therefore, when the user is operating the notebook computer, the user can only hear the middle and high frequencies above 600 Hz, and cannot hear the low sounds below 600 Hz.

[0004] However, unless the sound that can be heard by humans includes not only middle and high sounds but also low sounds, it cannot be said that the audio equipment has excellent sound quality. In other words, conventional notebook computers cannot provide excellent sound quality, so there is still room for improvement from the viewpoint of audio equipment.

Second, in the conventional notebook computer, since the speaker 13 does not isolate the sound radiated to the front and the rear of the cone of the vibrating paper, the sound radiated to the front and the rear is mutually separated. As a result, the function of the speaker unit 13 itself could not be fully exerted.

[0006] The present invention has been made in view of the above circumstances, and has as its object to provide a notebook computer having a speaker configuration capable of expressing extremely excellent sound quality.

[0007]

[Means for Solving the Problems]

 As means for solving the above-mentioned problems, the invention according to claim 1 includes at least one set of a full-range speaker device capable of expressing a good mid-treble effect and at least one set of low-range speakers capable of expressing a good bass effect. Device, and divides the entire audible audio frequency band into a plurality of bands, and arranges different loudspeaker devices in different audio frequency bands according to the reproduction characteristics, respectively, and And a multi-range speaker circuit that fully expresses the sound.

According to a second aspect of the present invention, in the first aspect of the present invention, the multi-range speaker circuit inputs the audio in the entire audible audio frequency band from a sound source via an audio IC, and inputs the audio to a predetermined frequency. And an equalizer that outputs divided into a middle and high frequency band and a low frequency band divided by the frequency division point of the above, and the whole-range loudspeaker device converts the sound of the middle and high frequency band from the equalizer. The bass speaker device inputs the sound of the low frequency band from the equalizer through a low-pass filter and a sound frequency amplifier. , Which expresses a bass effect, wherein the mid-high range sound from the gamut speaker device and the low range sound from the low range speaker device are output through a mixer. Is characterized by the fact that

According to a third aspect of the present invention, in the first or second aspect, the whole-range speaker device has at least one set of a speaker and a cabinet. By making full use of the characteristics of the whole-range frequency response curve, it is possible to express a good mid-treble effect.

According to a fourth aspect of the present invention, in the first or second aspect, the low-range speaker device has at least one set of a speaker unit and a cabinet. By exhibiting the characteristics of the low frequency response curve sufficiently, a good bass effect can be expressed.

According to a fifth aspect of the present invention, in the device according to any one of the first to fourth aspects, the low-range speaker device is provided separately from a computer main body so as to expand a function of the computer. It is characterized in that it is provided inside the structure or disposed outside the computer main body and connected to the computer main body through an external line.

[0012]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. However, it goes without saying that the present invention is not limited to this embodiment. FIG. 4 is a perspective view showing the appearance of the notebook computer according to the embodiment. 4, at least one set (two sets in FIG. 4) of the whole-range speaker device 30 is provided in a main body 51 of the notebook computer 50. In addition, a socket 53 is provided on the upper part of the display, and the bass range speaker device 40 is connected to the socket 53. Further, another socket 55 is provided on the side of the main body 51, and the plug 43 of the low-range speaker device 40 different from the low-range speaker device 40 is connected to the socket 55. ing. The multi-range speaker circuit according to the present invention includes the entire-range speaker device 30 and the low-range speaker device 40. Although FIG. 1 shows an example in which the low-range speaker device 40 is provided outside the main body 51, the low-range speaker device 40 may be provided inside the main body 51.

FIG. 1 is a block diagram showing the configuration of the multi-range speaker circuit of the present embodiment. In FIG. 1, a sound from a sound source 20 is input to an equalizer 22 through an audio IC 21. In the present embodiment, the frequency division point is set to 600 Hz, and the entire audible audio frequency band is divided into a middle / high frequency band and a low frequency band with a boundary of 600 Hz. Then, when the sound input from the audio IC 21 is higher than 600 Hz, the equalizer 22 outputs this to the gamut speaker device 30 via the sound frequency amplifier 23, while the sound input from the audio IC 21 is lower than 600 Hz. In this case, this is output to the low-range speaker device 40 via the low-pass filter 24 and the audio frequency amplifier 25. Each sound output from the full-range speaker device 30 and the low-range speaker device 40 is sent to the mixer 26, where it is mixed. Thus, a speaker configuration of a notebook computer having excellent sound effects can be realized.

As described above, in the multi-range loudspeaker circuit of the present invention, the entire audible sound frequency band is divided into a plurality of bands (ie, middle and high sound frequency bands and low sound frequency bands) at the frequency division point (600 Hz). At the same time, dedicated speaker devices 30 and 40 are provided for each band. If the sound is higher than the frequency division point, the sound is processed by the whole-range speaker device 30. If the sound is lower than the frequency division point, the sound is processed by the low-range speaker device 40. The bass is mixed by the mixer 26. Therefore, it is possible to output all of the middle and high sounds and the low sound, and it is possible to further improve the sound quality effect.

FIG. 2 is a perspective view showing a connection configuration of the two sets of all-range speaker devices 30 in FIG. As shown in this figure, the whole-range speaker device 30 is assembled by a speaker unit 31 and a cabinet 32, and the wiring of the two whole-range speaker devices 30 is connected by a plug 33. The cabinet 32 is capable of sufficiently exhibiting the characteristics of the entire-range frequency response curve of the speaker unit 31 (the quieter the frequency response curve, the more comfortable the hearing of the listener). The value of the lowest resonance frequency (f0) of the whole-range speaker device 30 is 600 Hz, and the low-frequency effect is not so good, but the mid-high frequency effect can be well expressed.

FIG. 3 is a perspective view showing one of the two sets of low-range speaker devices 40 shown in FIG. As shown in this figure, the bass-range speaker device 40 is assembled by a single speaker 41 and a cabinet 42, and a plug 43 is attached to the end of the wiring. Then, as shown in FIG. 4, the plug 43 of the low-range speaker device 40 is inserted into sockets 53 and 55 provided in a main body 51 of the notebook computer 50. The cabinet 42 can sufficiently exhibit the characteristics of the low-frequency response curve of the speaker unit 41. The lowest resonance frequency value (f0) of the bass range speaker device 40 is 300 Hz, which has an effect of emphasizing bass, and therefore has a function of expressing the bass effect well.

When assembling, as shown in FIG. 2 to FIG. 4, the plug 33 of the full-range speaker device 30 is inserted into a socket (not shown) provided in the main body 51 of the notebook computer 50, Furthermore, the plugs 43 of the two bass range speaker devices 40 may be inserted into sockets 53 and 55 provided in the main body 51.

FIG. 5 is a perspective view showing the appearance of a notebook computer according to another embodiment of the present invention. As shown in the figure, an expanded structure 52 is provided behind the notebook computer 50, and the bass sound speaker device 40 is installed in the expanded structure 52. Since the low-range speaker device 40 has a non-directional characteristic, it may be installed in the main body 51 as shown in FIG. 4, but is installed in the expansion structure 52 as shown in FIG. You may. Alternatively, a low-range speaker device 40 is provided outside the notebook computer 50 other than the expansion structure 52, and the low-range speaker device 40 and the notebook computer 50 are connected by an external line (Line Out). You may.

In the above-described embodiment, an example has been described in which the entire audible audio frequency band is divided into two bands, a middle and high sound frequency band and a low sound frequency band. The configuration may be such that the frequency band is divided into a larger number of bands. Further, in the above embodiment, the example in which the frequency division point is set to 600 Hz has been described, but the value of this frequency division point can be changed as appropriate. Further, in the above-described embodiment, an example is described in which two sets of the full-range speaker device 30 and the low-range speaker device 40 are provided, respectively. A configuration provided for each set or a configuration provided for three or more sets may be used.

[0020]

[Effect of the invention]

 As described above, according to the present invention, a multi-channel speaker having at least one set of a full-range speaker device capable of expressing a good mid-treble effect and at least one set of low-range speaker devices capable of expressing a good bass effect is provided. A multi-range loudspeaker circuit is provided, which divides the entire audible audio frequency band into a plurality of bands, and uses the speaker devices corresponding to each band to respectively separate the middle and high frequencies and low sounds included in the audible audio frequency. Because of the configuration for expressing, it is possible to realize a notebook computer that has extremely excellent sound effects as compared with a conventional notebook computer that can express only middle and high pitches.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of a multi-range speaker circuit according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a connection configuration of two sets of all-range speaker devices 30 in FIG. 1;

FIG. 3 is a perspective view showing one of two sets of low-range speaker devices 40 shown in FIG.

FIG. 4 is an exemplary perspective view showing the appearance of the notebook computer according to the embodiment of the present invention;

FIG. 5 is an exemplary perspective view showing the appearance of a notebook computer according to another embodiment of the present invention;

FIG. 6 is a perspective view showing a schematic configuration of a conventional notebook computer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Notebook type computer 11 Liquid crystal display 12 Main body 13 Speaker alone 20 Sound source 21 Audio IC 22 Equalizer 23 Audio frequency amplifier 24 Low-pass filter 25 Audio frequency amplifier 26 Mixer 30 Full-range speaker device 31 Speaker unit 32 Cabinet 33 Plug 40 Low-range speaker Device 41 Speaker unit 42 Cabinet 43 Plug 50 Notebook computer 51 Main body 52 Expansion structure 53 Socket 55 Socket

Claims (5)

[Utility model registration claims] The present invention has at least one set of a full-range loudspeaker device capable of expressing a good mid-high range effect, and at least one set of low-range loudspeaker devices capable of expressing a good low range effect. A multi-range speaker circuit that divides into a plurality of bands, arranges different speaker devices respectively in different audio frequency bands according to the reproduction characteristics, and sufficiently expresses the middle, high, and low sounds of the audible audio frequency. Notebook type computer. 2. The multi-range speaker circuit inputs, through an audio IC, sound in the entire audible sound frequency band from a sound source, and inputs the sound to a middle and high sound frequency band divided by a predetermined frequency division point. An equalizer that divides and outputs a low-frequency band, and the whole-range speaker device inputs the middle-high frequency band sound from the equalizer through a sound frequency amplifier to express a middle-high sound effect. Wherein the bass speaker device inputs the sound of the bass frequency band from the equalizer through a low-pass filter and an audio frequency amplifier, and expresses a bass effect. The notebook type according to claim 1, wherein the mid-high range sound and the low range sound from the low range speaker device are output through a mixer. Computer. 3. The loudspeaker device for at least one gamut speaker comprises:
It has a set of speakers and a cabinet,
The notebook type according to claim 1 or 2, wherein the cabinet is capable of sufficiently exhibiting the mid-to-treble effect by sufficiently exhibiting the characteristics of the entire-range frequency response curve of the speaker alone. Computer. 4. The low-pitched loudspeaker device comprises at least one
It has a set of speakers and a cabinet,
3. The notebook-type computer according to claim 1, wherein the cabinet makes it possible to express a good bass effect by sufficiently exhibiting a bass frequency response curve characteristic of the speaker alone. . 5. The low-range speaker device is provided in an expansion structure provided separately from the computer main body to expand the functions of the computer, or is provided outside the computer main body via an external line. The notebook computer according to any one of claims 1 to 4, wherein the notebook computer is connected to a computer main body.