KR101488936B1 - Apparatus and method for adjusting middle layer - Google Patents

Abstract

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a middle layer position adjusting apparatus and method for adjusting a position of a middle layer for generating a front channel sound in a speaker in a vertical direction. A middle layer position adjustment method of a speaker includes receiving an audio signal corresponding to an image displayed on a screen, extracting a front channel audio signal from the input audio signal, extracting a front channel audio signal corresponding to the extracted front channel audio signal, And adjusting the position of the layer in the vertical direction.

Description

[0001] APPARATUS AND METHOD FOR ADJUSTING MIDDLE LAYER [0002]

The present invention relates to a middle layer position adjusting apparatus and method for generating a front channel sound, and more particularly to a middle layer position adjusting apparatus and method for adjusting a position of a middle layer generating a front channel sound in a vertical direction .

In recent years, with the improvement in living standards, home theater systems are often used to enjoy movies and music. To implement a home theater system, you need a front left and right speakers, a subwoofer, a surround back speaker, a surround left and right speaker, and a center speaker to create a surround sound with a large monitor. Among the speakers, the center speaker is positioned between the front left and right speakers to prominently move the sound and to provide a complete sound image. It is used mainly for the dialogue. It is located at the same position as the front left and right speakers, (Generally placed above or below the TV). This center speaker is the core speaker of the surround sound system.

On the other hand, in accordance with the spread of devices such as DVD and HDTV and trend of digital broadcasting, display devices are being developed from CRTs through LCDs and PDPs to OLEDs, and the size of display devices is becoming larger and larger. If the surround environment is to be installed in a living room or a room of the house according to this tendency, the arrangement of the speakers may become a problem. Especially, the center speaker is very important for surround listening because it is the only channel that contains the metabolism that makes up most of the actual movie, not the effect component.

In addition, as the number of people who want to enjoy movies with higher quality video and sound increases, the importance of more dynamic and more realistic sound is increasing day by day. Accordingly, an increasing number of people are spending money on purchasing projection, large-screen display devices, and multi-channel speaker devices.

In order to provide more lively and realistic sound, Korean Patent Laid-Open No. 2009-0100566, entitled " Display device with object-oriented stereoscopic coordinate display "has been introduced.

Korean Patent Laid-Open Publication No. 2009-0100566 discloses a speaker system in which a plurality of small speakers are arranged behind a display monitor.

However, Korean Patent Laid-Open Publication No. 2009-0100566 discloses a method of matching a position of a speaker outputting a metabolism or a sound of an object such as a speaking person or a sounding object with the position of an object on the screen But does not disclose a specific technique for adjusting the position of the middle layer of the speaker in order to effectively output the sound of the front channel among the sound channels output from the speaker.

As described above, in the conventional speaker, for example, the information provided on the linked theater screen is made to match the position of the speaker for outputting the metabolism or sound of the object to the object of the screen, And does not describe a technique of adjusting the position of a middle layer of a speaker in order to effectively generate a sound of a channel.

Accordingly, in a multimedia system equipped with a sound system using a two-dimensional array speaker, a technique for adjusting the position of a middle layer of a speaker applied to a screen is urgently required.

An object of the present invention is to provide a sound reproducing apparatus and a sound reproducing method in which a sound corresponding to a sound source of an object displayed on a screen is positioned in an array on the X and Y axes on a rear surface of a screen, And a method thereof.

According to an aspect of the present invention, there is provided a middle layer position adjusting method for generating a front channel sound, the method comprising: receiving an audio signal corresponding to an image displayed on a screen; Extracting a front channel audio signal from an input audio signal; And adjusting the position of the middle layer in which the sound corresponding to the extracted front channel audio signal is generated, in the vertical direction.

In this case, the step of adjusting the position of the middle layer in the vertical direction may include adjusting the sound generation direction of the middle layer toward the top layer when the front channel audio signal corresponds to high and middle sounds. And controlling the middle layer speaker and the top layer speaker to operate in conjunction with each other.

In this case, the controlling step controls the middle layer speaker and the top layer speaker to operate at a setting ratio corresponding to the front channel audio signal, respectively.

In this case, the step of adjusting the position of the middle layer in the vertical direction may include: adjusting the sound generation direction of the middle layer toward the bottom layer when the front channel audio signal corresponds to bass; And controlling the middle layer speaker and the bottom layer speaker to operate in cooperation with each other.

In this case, the controlling step controls the middle layer speaker and the bottom layer speaker to operate at a setting ratio corresponding to the front channel audio signal, respectively.

The setting ratio is a ratio set based on an area where sound output from each speaker is superimposed.

In this case, one speaker constituting the array speaker includes a bass part for outputting a low sound and a middle part for outputting a high sound and a middle sound. In the step of adjusting the position of the middle layer in the up and down direction, And when the channel audio signal corresponds to the high and middle sounds, the middle portion corresponding to the middle layer speaker is rotated toward the top layer.

In this case, the front channel audio signal corresponds to left (L), center (C), and right (R) channel sounds.

According to an aspect of the present invention, there is provided a middle layer position adjusting apparatus for generating a front channel sound, comprising: an input unit for receiving an audio signal corresponding to an image displayed on a screen; An extracting unit for extracting a front channel audio signal from an input audio signal; And a position adjustment unit for adjusting the position of the middle layer in which the sound corresponding to the extracted front channel audio signal is generated, in the vertical direction.

In this case, when the front channel audio signal corresponds to the high and middle sounds, the position adjusting unit adjusts the sound generation direction of the middle layer upward toward the top layer.

In this case, the position adjusting unit adjusts the sound generation direction of the middle layer toward the bottom layer when the front channel audio signal corresponds to the low sound.

The controller may further include a control unit operable to operate in cooperation with a top layer speaker or a bottom layer speaker in correspondence with a sound generation direction of the middle layer adjusted by the position adjustment unit.

In this case, the controller controls the middle layer speaker and the top layer speaker to operate in a coordinated manner when the position adjusting unit adjusts the sound generation direction of the middle layer upward toward the top layer.

In this case, the controller controls the middle layer speaker and the bottom layer speaker to operate in conjunction with each other when the position adjusting unit adjusts the sound generation direction of the middle layer toward the bottom layer.

In this case, each of the speakers located in the middle layer includes a bass part for outputting a low sound and a middle part for outputting a high sound and a medium sound.

At this time, the position adjusting unit rotates the middle part of the sound to the top layer when the front channel audio signal corresponds to high and middle sounds.

According to the present invention, among the plurality of speaker channels arranged in the form of an array on the X axis and the Y axis on the rear surface of the screen, the sound corresponding to the sound source of the object displayed on the screen is positioned in the vertical direction Can be provided.

FIG. 1 is a block diagram schematically showing an apparatus for adjusting a middle layer position of a speaker according to an embodiment of the present invention. Referring to FIG.
2 is a view illustrating a display screen and a two-dimensional array speaker disposed behind the display screen according to an embodiment of the present invention.
FIG. 3 is a reference view for explaining a technique for adjusting a position of a middle layer speaker in accordance with a front sound according to an embodiment of the present invention. Referring to FIG.
4 is a side view of a two-dimensional array speaker disposed behind a display screen applied to a middle layer position adjusting device of a speaker according to an embodiment of the present invention.
5 is a view showing a structure of a two-dimensional array speaker disposed behind a display screen applied to a middle layer position adjusting apparatus of a speaker according to an embodiment of the present invention.
6 is a flowchart illustrating a method of adjusting a middle layer position of a speaker according to an embodiment of the present invention.

The present invention will now be described in detail with reference to the accompanying drawings. Hereinafter, a repeated description, a known function that may obscure the gist of the present invention, and a detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus and method for adjusting a middle layer position of a speaker according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram schematically showing an apparatus for adjusting a middle layer position of a speaker according to an embodiment of the present invention. Referring to FIG.

First, a plurality of loudspeakers applied to a middle layer position adjusting apparatus of a speaker according to an embodiment of the present invention operates in conjunction with a display screen having holes formed therein for displaying images and allowing sound to pass therethrough. Here, the display screen corresponds to, for example, a screen such as an LCD, an OLED, a projection, and a screen.

A plurality of loudspeakers are arranged in matrix form on the X, Y axes, in total, after the display screen.

Referring to FIG. 1, a middle layer position adjusting apparatus 100 of a speaker includes an input unit 110, an extracting unit 120, a position adjusting unit 130, and a controller 140.

The input unit 110 receives an audio signal corresponding to an image to be displayed on the screen. Here, the audio signal input from the input unit 110 corresponds to 5.1-channel based sound.

The extraction unit 120 extracts a front channel audio signal among the audio signals received from the input unit 110. [ Here, the front channel audio signal corresponds to left (L), center (C), and right (R) channel audio signals.

The position adjustment unit 130 adjusts the position of the middle layer in the vertical direction corresponding to the front channel audio signal extracted by the extraction unit 120.

The speaker according to the embodiment of the present invention is arranged as shown in FIG.

Referring to FIG. 2, a two-dimensional array speaker is disposed behind the display screen 200. The two-dimensional array speaker outputs a plurality of audio signals corresponding to images displayed on the screen and includes a plurality of speakers 210, 220, and 230 arranged in the horizontal and vertical directions. Each of the plurality of speakers 210, 220 and 230 includes an X coordinate corresponding to the position of the horizontal axis and a Y coordinate corresponding to the position of the vertical axis. Here, for the speaker array arranged in the X axis and Y axis, the upper speaker array is referred to as a top layer, the lower speaker array is referred to as a bottom layer (BOTTOM LAYER), a speaker array between a top layer and a bottom layer is referred to as a MIDDLE LAYER ).

For example, in the speakers as shown in FIGS. 2 and 3, the upper five speaker arrays are a top layer, the lower five speaker arrays are a bottom layer, and five The speaker array is called the middle layer (MIDDLE LAYER). The number of speakers belonging to the top layer, the middle layer and the bottom layer may be set differently according to the setting of the user, but is not limited thereto.

Specifically, when the front channel audio signal corresponds to, for example, a treble and a middle sound, the position adjustment unit 130 adjusts the middle layer position upward to the top layer side (A case in FIG. 3).

In addition, the position adjusting unit 130 adjusts the middle layer position toward the bottom layer when the front sound corresponds to, for example, bass (B case in Fig. 3).

The high, middle, and low frequencies according to the embodiment of the present invention are distinguished based on the frequency of the corresponding wave, but are not limited thereto.

The controller 140 controls the position adjusting unit 130 to operate in conjunction with the top layer speaker or the bottom layer speaker in accordance with the position of the middle layer adjusted by the position adjusting unit 130.

Specifically, when the position of the middle layer adjusted by the position adjusting unit 130 is upwardly adjusted to the top layer (A case in FIG. 3), the controller 140 controls the middle layer speaker to operate in cooperation with the top layer speaker do. For example, the controller 140 controls the middle layer speaker and the top layer speaker to operate at a setting ratio corresponding to the front channel sound, respectively. Here, the setting ratio is a ratio set based on the area where the sounds output from the middle layer speaker and the top layer speaker overlap each other.

3), the controller 140 controls the position of the middle layer speaker and the bottom layer of the bottom layer, for example, when the position of the middle layer adjusted by the position adjusting unit 130 is adjusted downward toward the bottom layer And controls the layer speaker to operate at a setting ratio corresponding to the front channel sound, respectively. Here, the setting ratio is a ratio set based on the area where the sounds output from the middle layer speaker and the top layer speaker overlap each other.

Next, in order to adjust the position of the middle layer in the position adjusting unit 130 in the vertical direction, the middle layer position adjusting apparatus 100, in which the front channel sound is generated according to the embodiment of the present invention, Array speakers can be configured.

FIG. 4 is a side view of a two-dimensional array speaker disposed behind a display screen applied to a middle layer position adjusting device in which a front channel sound is generated according to an embodiment of the present invention. FIG. Dimensional array speaker disposed behind a display screen applied to a middle layer position adjusting device.

First, a two-dimensional array speaker outputs a sound corresponding to an image displayed on a display screen, and includes a plurality of speakers arranged in the horizontal and vertical directions. At this time, each of the plurality of speakers (400 in FIG. 4) included in the two-dimensional array speaker has a structure as shown in FIG.

Referring to FIG. 5, each of the plurality of speakers (400 in FIG. 4) includes a middle note 410 for outputting high and middle sounds and a bass unit 420 for outputting low notes. Here, the middle part 410 is configured to be rotatable in the vertical direction.

That is, when the front sound corresponds to the high and middle sounds, the position adjusting unit 130 rotates the middle note 410 corresponding to each of the middle layer speakers toward the top layer.

Next, a method of adjusting the middle layer position at which the front channel sound is generated will be described in detail with reference to FIG.

6 is a flowchart illustrating a method of adjusting a middle layer position where a front channel sound is generated according to an embodiment of the present invention.

First, an apparatus for adjusting a middle layer position for adjusting a position of a middle layer for generating a front channel sound in a vertical direction in a speaker according to an embodiment of the present invention (hereinafter referred to as "a middle layer position adjusting apparatus in which a front channel sound is generated & (100 in FIG. 1) operates in conjunction with a display screen in which a hole is formed so that an image is displayed and a sound can pass through. Here, the display screen corresponds to, for example, a screen such as an LCD, an OLED, a projection, and a screen.

A plurality of loudspeakers are arranged in matrix form on the X, Y axes, in total, after the display screen.

Referring to FIG. 7, the middle layer position adjustment apparatus 100 in which a front channel sound is generated receives an audio signal corresponding to an image displayed on the screen, for example, a 5.1 channel based sound (S100).

In step S200, the middle layer position adjustment apparatus 100, in which the front channel sound is generated, extracts the front channel audio signal from the five audio signals received in step S100. Here, the front channel audio signal corresponds to left (L), center (C), and right (R) channel sounds.

In operation S300, the middle layer position adjusting apparatus 100, in which the front channel sound is generated, adjusts the position of the middle layer corresponding to the extracted front channel audio signal in step S200.

The middle layer position adjusting apparatus 100 in which the front channel sound is generated uses two methods to adjust the position of the middle layer in the vertical direction as in step S300.

In the first method, the middle layer position adjusting apparatus 100, in which the front channel sound is generated, adjusts the middle layer position according to the case where the front channel audio signal corresponds to the treble and the middle tone and corresponds to the bass, Accordingly, it controls to operate in conjunction with the top layer speaker or the bottom layer speaker.

Specifically, the middle layer position adjusting device 100 of the speaker adjusts the sound generation direction of the middle layer upward toward the top layer when the front sound corresponds to, for example, high and middle sounds, Layer speaker and the top layer speaker to operate in conjunction. At this time,

The middle layer position adjustment device 100, in which the front channel sound is generated, adjusts the sound generation direction of the middle layer toward the bottom layer when the front channel audio signal corresponds to, for example, bass, Controls the middle layer speaker and the bottom layer speaker to work together.

In the second method, the middle layer position adjusting apparatus 100 of the speaker forms a plurality of speakers included in the two-dimensional array speaker as shown in FIG. 5 in order to adjust the position of the middle layer in the vertical direction as in step S300 .

Here, each of the plurality of speakers (400 in FIG. 4) includes a middle tone portion 410 for outputting high and middle sounds, and a bass portion 420 for outputting a low tone. Here, the middle part 410 is configured to be rotatable in the vertical direction.

When the front sound corresponds to a treble and a middle sound, the middle layer position adjustment device 100, in which a front channel sound is generated, rotates the middle part 410 corresponding to each of the middle layer speakers toward the top layer.

As described above, in the present invention, a sound corresponding to a sound source of an object displayed on a screen is positioned in the form of an array on the X and Y axes on the rear surface of the screen, and the position of the middle layer, which generates the front channel sound, Direction can be provided.

As described above, an optimal embodiment has been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100; Middle layer position adjustment device of speaker
110; An input unit 120; The extraction unit
130; A position adjusting unit 140; The control unit
200; Display screens 210, 220, 230, 400; speaker
410; A middle part 420; Bass

Claims (16)

Receiving an audio signal corresponding to an image displayed on a screen;
Extracting a front channel audio signal from an input audio signal; And
Adjusting the position of the middle layer in which the sound corresponding to the extracted front channel audio signal is generated in the vertical direction
Lt; / RTI >
The step of adjusting the position of the middle layer in the vertical direction
When adjusting the sound generation direction of the middle layer toward the top layer, controlling the middle layer speaker and the top layer speaker to operate in conjunction with each other, and adjusting the sound generation direction of the middle layer toward the bottom layer, And controlling the layer speaker and the bottom layer speaker to operate in conjunction with each other. delete delete delete delete delete The method according to claim 1,
One speaker constituting the array speaker includes a bass part for outputting a low sound and a middle part for outputting a high sound and a medium sound,
The step of adjusting the position of the middle layer in the vertical direction
Wherein the center channel is rotated toward the top layer when the front channel audio signal corresponds to a treble and a middle tone. The method according to claim 1,
Wherein the front channel audio signal corresponds to left (L), center (C), and right (R) channel sounds. An input unit for receiving an audio signal corresponding to an image displayed on a screen;
An extracting unit for extracting a front channel audio signal from an input audio signal; And
A position adjustment unit for adjusting the position of the middle layer in which the sound corresponding to the extracted front channel audio signal is generated,
Lt; / RTI >
And a control unit for controlling the front channel sound to operate in conjunction with a top layer speaker or a bottom layer speaker in accordance with a sound generation direction of the middle layer adjusted by the position adjustment unit. delete delete delete The method of claim 9,
The control unit
Wherein the controller controls the middle layer speaker and the top layer speaker to operate in an interlocked manner when the position adjustment unit adjusts the sound generation direction of the middle layer upward toward the top layer. The method of claim 9,
The control unit
Wherein the controller controls the middle layer speaker and the bottom layer speaker to operate in cooperation with each other when the position adjusting unit downwardly adjusts the sound generation direction of the middle layer toward the bottom layer. The method of claim 9,
Each of the speakers located in the middle layer
Wherein the front channel sound is generated when the front channel sound is generated, and the middle channel position adjusting device generates a front channel sound by outputting a low sound outputting a low sound and a middle sound outputting a high sound and a middle sound. 16. The method of claim 15,
The position-
Wherein the middle channel is rotated toward the top layer when the front channel audio signal corresponds to high and middle sounds.

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