KR102074315B1 - Sound book - Google Patents

Abstract

The present invention relates to a sound book. The sound book is disposed on one surface of the first page and the second page facing each other, a first flip page disposed between the first page and the second page, the first page overlapping the first flip page A first sensor unit configured to detect light, a speaker unit disposed at one side of the sound book to generate sound, and a first sound corresponding to the first page when light is detected by the first sensor unit; And a control unit for outputting through the speaker unit.

Description

Sound book {Sound book}

The present invention relates to a “sound book”, and more particularly, to a “sound book” which outputs a sound corresponding to a corresponding page through a speaker using a signal sensed by a sensor unit.

In general, the learning book includes a recording medium that pre-records the contents of the book, such as a cassette tape or compact disc (CD), which is played through a cassette tape recorder or compact disc player to increase interest and learning effect for users. I'm making it.

In addition, a learning picture book has a picture corresponding to the contents of the book and various characters are printed, and a learning picture book having a voice output device for outputting various sound effects when a printed picture or character is selected has been released.

Such a learning picture book is provided with a separate detection sensor for detecting the corresponding page that the user opens, and when the detection sensor is touched using a touch fan, a sound set in the corresponding page is output through a speaker.

Therefore, in order to hear the sound effect of the page, the users touch the picture or the character of the page by using the input device provided separately in the state of spreading the page. In order to detect a user's touch, a touch sensor having a relatively large size must be provided for each page, and thus, a structure of a learning picture book is very complicated and a production cost is high.

In addition, when the input device provided separately is lost, the sound effect of the picture book does not work properly, and there is an inconvenience to purchase a new input device.

An object of the present invention is to provide a flip book formed between a page and a page, and a sound book for reproducing a sound corresponding to the page by using a sensor unit for detecting a position of the flip page.

The object of the present invention is not limited to the above-mentioned object, other objects and advantages of the present invention that are not mentioned above can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

Sound book according to an embodiment of the present invention for the above object, the first page and the second page facing each other, the first flip page disposed between the first page and the second page, the first flip page When the first sensor unit disposed on one surface of the first page overlapping with the first sensor to sense light, the speaker unit disposed on one side of the sound book to generate sound, and the light is detected by the first sensor unit, And a controller configured to output a first sound corresponding to the first page through the speaker unit.

The display apparatus may further include a second sensor unit disposed on one surface of the second page overlapping with the first flip page and configured to sense light. The control unit may include the first sensor unit when light is detected by the second sensor unit. The second sound corresponding to one surface of two pages may be output through the speaker unit.

The first sensor unit and the second sensor unit may be arranged to be symmetrical with respect to the first flip page.

In addition, the controller may compare the magnitude of the amount of light detected by the first sensor unit and the second sensor unit, and output a sound for a page on which a sensor unit in which greater light is detected is disposed.

In addition, a third page facing the other surface of the second page, a second flip page disposed between the second page and the third page, and the other surface of the second page overlapping the second flip page The display device may further include a third sensor unit, and when the light is detected by the third sensor unit, the controller may output a third sound corresponding to the other surface of the second page through the speaker unit.

The first flip page may have a smaller size than the first or second page, and may be fixed to one of the first or second pages and rotate left and right.

In addition, the first sensor unit may transmit the detected signal to the controller using wireless communication.

The apparatus may further include a memory unit configured to store different sound files assigned to respective surfaces of the plurality of pages, wherein the controller is configured to detect light among sensor units disposed on one or the other surfaces of the plurality of pages. The sound file corresponding to one side or the other side of the additionally arranged page can be played.

According to another aspect of the present invention, there is provided a sound book comprising: a first page and a second page facing each other, a first flip page disposed between one side of the first page and one side of the second page; A first sensor unit disposed on one surface of the first page overlapping the first flip page, a speaker unit disposed on one side of the sound book to generate sound, and one surface and the other surface of the first page and the second page; And a memory unit for storing the respective sound files, and a controller for reproducing the sound file stored in the memory unit based on the strength of the first signal measured by the first sensor unit.

In addition, the first sensor unit may include an optical sensor or a distance sensor.

The display apparatus may further include a second sensor unit disposed on one surface of the second page overlapping the first flip page, and the controller may measure the first signal measured by the first sensor unit and the second sensor unit. By comparing the magnitudes of the second signals, the first sound file may be played when the first signal is larger than the second signal, and the second sound file may be played when the first signal is smaller than the second signal. have.

The sound book of the present invention can output different sounds by moving the flip page within the spread page, thereby providing various sounds to the user on the same page. In addition, since the user does not need a separate input device for outputting sound, the user does not have to carry the input device all the time, thereby improving user convenience, and a situation in which the user cannot use the sound book due to the loss of the input device occurs. You can't.

In addition, the sound book of the present invention can freely arrange the position of the sensor in the sound book by using a relatively small and inexpensive optical sensor or a distance sensor, thereby improving the degree of freedom in design and manufacturing cost. Can be saved.

In addition to the effects described above, the specific effects of the present invention will be described together with the following description of specifics for carrying out the invention.

1 is a block diagram illustrating a sound book according to an embodiment of the present invention.
2 is a view for explaining a relationship between a sensor unit and a control unit included in a sound book according to an embodiment of the present invention.
3 is a perspective view showing the appearance of a sound book according to an embodiment of the present invention.
4 and 5 are diagrams for explaining an example of the operation of the sound book according to an embodiment of the present invention.
6 and 7 are views for explaining another example of the operation of the sound book according to an embodiment of the present invention.

The above objects, features, and advantages will be described in detail with reference to the accompanying drawings, and thus, those skilled in the art may easily implement the technical idea of the present invention. In describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. The terms "comprise" or "having" herein are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof that is described, and that one or more other features or numbers, It is to be understood that it does not exclude in advance the possibility of the presence or addition of steps, actions, components, parts or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined herein. Do not.

Hereinafter, a sound book and a method according to the present invention will be described with reference to FIGS. 1 to 9.

1 is a block diagram illustrating a sound book according to an embodiment of the present invention. 2 is a view for explaining a relationship between a sensor unit and a control unit included in a sound book according to an embodiment of the present invention. 3 is a perspective view showing the appearance of a sound book according to an embodiment of the present invention.

First, referring to FIG. 1, the sound book 100 according to an embodiment of the present invention includes a control unit 110, a sensor unit 120, a speaker unit 130, a microphone 140, a memory unit 150, The communication unit 160, the power supply unit 170, and the interface unit 180 are included.

The controller 110 controls the operation of each component included in the sound book 100. The controller 110 may reproduce the sound file stored in the memory unit 150 through the speaker unit 130 based on the detection signal of the sensor unit 120. In addition, the controller 110 may exchange data with an external device by wire or wirelessly through the communication unit 160. In addition, the controller 110 may control the amount of power supplied from the power supply unit 170. In addition, the controller 110 may control an operation of each component included in the sound book 100 to perform an operation corresponding to a user input input through the interface unit 180. However, this is only one example, and the operation of the controller 110 is not limited thereto.

The controller 110 may include any type of conventional processor, microprocessor, or processing logic that interprets and executes instructions. In addition, the controller 110 may execute an operating system (OS) and one or more software applications executed on the operating system, and may access, store, manipulate, process, and generate data in response to the execution of the software.

The sensor unit 120 includes an optical sensor for detecting light and a distance sensor for measuring a distance to an adjacent object. The sensor unit 120 transmits the measured amount of light or the distance to the measured adjacent object to the controller 110. The amount of light measured by the optical sensor and the intensity of the signal measured by the distance sensor may be used to determine the page currently unfolded in the sound book 100. Detailed description thereof will be described later.

In addition, the sensor unit 120 may transmit the measured signal to the control unit 110 using wireless communication. As a result, wiring may be omitted in each page of the sound book 100, thereby reducing the thickness of each page.

The speaker unit 130 outputs data received from the controller 110 as sound. The speaker unit 130 may be disposed on the outer surface or the inner surface of the sound book 100. The speaker 130 may be provided in plural, and may be attached to different portions of the sound book 100 to implement stereoscopic sound.

For example, the speaker unit 130 may be disposed on the cover 105 of the sound book 100 as shown in FIG. 2. In addition, although not clearly shown in the drawings, the first speaker of the speaker unit 130 is disposed on one side of the sound book 100, and the second speaker is disposed on the other side of the sound book 100 to provide a stereo sound to the user. Can be provided. However, this is only one example, and the present invention is not limited thereto.

The microphone 140 detects a user's voice and transmits the detected voice signal to the controller 110. The microphone 140 may be disposed at one side of the sound book 100. The controller 110 may control the operation of the sound book 100 by extracting a command from a voice signal input through the microphone 140. In addition, the controller 110 may record a voice input through the microphone 140 or play back a recorded voice later.

The memory unit 150 stores a sound file corresponding to each page included in the sound book 100. In detail, the memory unit 150 may store a plurality of sound files, and may store data about a connection relationship between each page included in the sound book 100 and the plurality of sound files. In addition, the memory unit 150 may store a voice file in which a user's voice is recorded. The controller 110 may read, write, or delete data stored in the memory unit 150.

The memory unit 150 may include a dynamic storage device that stores dynamic information and instructions for execution by the controller 110, such as a random access memory (RAM). In addition, the memory unit 150 may include a static storage device that stores static information and instructions for use by the controller 110, such as a read only memory (ROM). That is, the memory unit 150 may be a volatile memory unit or a nonvolatile memory unit. In addition, memory unit 150 may also be another type of computer-readable medium, such as a magnetic or optical disk. However, the present invention is not limited thereto.

The communication unit 160 may include an electronic device, a module, or a program that transmits and receives data to and from another terminal device through wired or wireless communication.

Wireless communication networks used by the communication unit 160 include WLAN, Wi-Fi, WiBro, WiMAX, World Interoperability for Microwave Access (WMAX), and HSDPA (High Speed Downlink Packet Access). ), Long Term Evolution (LTE), IEEE802.16, and Wireless Mobile Broadband Service (WMBS).

In addition, short-range wireless communication networks include Beacon, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and Z-Wave (Z-). Wave) may be included. However, the present invention is not limited thereto.

The power supply unit 170 provides power to each component included in the sound book 100.

The power supply unit 170 may receive power from an external power source or provide power using a battery. The power supply unit 170 may include a power port (not shown) for receiving an external power and charge the battery using an external power source.

Specifically, referring to FIG. 2, the power supply unit 170 may include a cover unit 172 and a battery unit 174. The cover 105 of the sound book 100 may be provided with a slot (not shown) into which the battery unit 174 may be inserted, and the cover unit 172 may not expose the battery unit 174 to the outside. Slots (not shown) may be covered. The cover part 172 may be formed to have a size that can be combined with a slot (not shown), and when coupled, the top surface of the cover part 172 may be disposed on the same plane as the top surface of the cover 105.

The interface unit 180 may receive a user input. For example, although not clearly shown in the drawings, the interface unit 180 is disposed on one side of the sound book 100 and includes a control button for receiving a user's command or adjusting a setting of the sound book 100. can do. In addition, the interface unit 180 may indicate a state of the sound book 100 and may include a touch screen for receiving a user's command. However, this is only one example, and the present invention is not limited thereto.

Referring to FIG. 3, the controller 110 may output a sound file stored in the memory unit 150 through the speaker unit 130 based on the detection signal received from the sensor unit 120. For convenience of explanation, hereinafter, the sensor unit 120 will be described as an example of an optical sensor that senses light.

The sensor unit 120 may include a plurality of optical sensors 121 to 129. In this case, the plurality of optical sensors 121 to 129 may be disposed on different pages. For example, the first optical sensor 121 may be disposed on the first page P1, and the second optical sensor 122 may be disposed on the second page P2.

That is, the sound book 100 may include optical sensors 121 to 129 assigned to each page, and different sound files may be assigned to each optical sensor 121 to 129.

If a specific page of the sound book 100 is unfolded, a light source is detected by the first optical sensor 121 assigned to the specific page, and a signal is transmitted to the controller 110. Subsequently, the controller 110 reproduces the first sound file assigned to the first optical sensor 121. That is, when light is detected by the first optical sensor 121, the controller 110 may output the first sound corresponding to the first page on which the first optical sensor 121 is disposed through the speaker unit 130. Can be.

Similarly, when light is detected by the second optical sensor 122, the controller 110 may output the first sound corresponding to the second page on which the second optical sensor 122 is disposed through the speaker unit 130. Can be.

In this case, one page may be configured as both sides, and the first optical sensor 121 may be disposed on one surface of the page, and the second optical sensor 122 may be disposed on the other surface (ie, the opposite surface) of the specific page. have. In this case, the first optical sensor 121 and the second optical sensor 122 may be disposed inside the specific page, and the first optical sensor 121, the second optical sensor 122, and the controller 110 may be disposed therein. Wiring for connecting the may be included.

In addition, in another embodiment of the present invention, the optical sensors 121 to 129 have a wireless communication function, and may transmit a detection signal to the controller 110 through wireless communication. In this case, the controller 110 may receive a detection signal from the optical sensors 121 to 129 through the communication unit 160. However, the present invention is not limited thereto.

Hereinafter, an example of an operation of the sound book 100 according to an embodiment of the present invention will be described with reference to FIGS. 4 to 7.

4 and 5 are diagrams for explaining an example of the operation of the sound book according to an embodiment of the present invention.

4 and 5, when the sound book 100 is unfolded, one side 211b of the first page 211 and one side 213a of the second page 213 are shown. May be exposed. In this case, the first page 211 and the second page 213 may be connected to each other, and one surface 211b of the first page 211 and one surface 213a of the second page 213 may be disposed to face each other. Can be.

In addition, a first flip page 221 may be disposed between the first page 211 and the second page 213. In this case, the first flip page 221 may be fixed to one of the first page 211 or the second page 213 to be disposed to rotate left and right. In this case, the first flip page 221 may be formed to have a smaller size than the first page 211 and the second page 213.

For example, the first flip page 221 is disposed to be fixed on one surface 213a of the second page 213 and may be integrally formed with the second page 213. In addition, the first flip page 221 may move to rotate left and right on one surface 213a of the second page 213.

However, the present invention is not limited thereto, and the first flip page 221 may be disposed on the boundary line C1 between the first page 211 and the second page 213, and the first page 211. And larger than the second page 213.

The first optical sensor 121 may be disposed on one surface 211b of the first page 211, and the second optical sensor 122 may be disposed on one surface 213a of the second page 213. In this case, the first optical sensor 121 and the second optical sensor 122 may be disposed at a position overlapping with the first flip page 221.

The first optical sensor 121 and the second optical sensor 122 may be disposed to be symmetrical with respect to the first flip page 221. In addition, the first optical sensor 121 and the second optical sensor 122 may be disposed to be adjacent to the boundary line C1 of the first page 211 and the second page 213. However, this is only one example, and the present invention is not limited thereto.

As shown in FIG. 4, when the first flip page 221 is disposed to be adjacent to one surface 213a of the second page 213, the first flip page 221 is one surface 213a of the second page 213. ) Covers the second optical sensor 122 disposed on the substrate. At this time, one surface 221a of the first flip page 221 is exposed to the user.

In this case, a light source is detected by the first optical sensor 121 disposed on one surface 211b of the first page 211, and the controller 110 based on the detection signal received from the first optical sensor 121. The first sound corresponding to the one surface 211b of the first page 211 is output through the speaker unit 130.

Subsequently, as shown in FIG. 5, when the first flip page 221 is rotated to be closer to the one surface 211b of the first page 211, the first flip page 221 is one surface of the first page 211 ( Covers the first optical sensor 121 disposed on 211b). At this time, the other surface 221b of the first flip page 221 is exposed to the user.

In this case, since the light source is sensed by the second optical sensor 122 disposed on one surface 213a of the second page 213, the controller 110 based on the detection signal received from the second optical sensor 122. The second sound corresponding to the one surface 213a of the second page 213 is output through the speaker unit 130. In this case, the first sound may be different from the second sound.

That is, the user can rotate the first flip page 221 left and right, and when the first flip page 221 is in the first position (that is, the first flip page 221 is the second page 213). When the first sound is output and the first flip page 221 is in the second position (that is, the first flip page 221 is one surface of the first page 211). Adjacent to 211b), a second sound may be output.

If a light source is detected by both the first optical sensor 121 and the second optical sensor 122, the controller 110 compares the detected amount of light. Subsequently, the controller 110 outputs a sound for the page on which the sensor unit in which the greater light amount is detected is arranged.

In another embodiment of the present invention, the sensor unit 120 may use a distance sensor in place of the optical sensor. In this case, the controller 110 may output a sound corresponding to each page by using the distance between the first flip page 221 measured by the distance sensor and the distance sensor.

For example, by comparing the magnitudes of the first signal measured by the first distance sensor and the second signal measured by the second distance sensor, when the first signal is larger than the second signal, the first sound file is reproduced. When the first signal is smaller than the second signal, the second sound file can be played.

In this way, the sound book 100 of the present invention may output different sounds by moving the flip page in the unfolded page, thereby providing various sounds to the user on the same page. In addition, since a separate input device for outputting sound is not required, the user does not have to carry the input device all the time, thereby improving user convenience and losing the input device so that the user cannot use the sound book. Can be prevented.

6 and 7 are views for explaining another example of the operation of the sound book according to an embodiment of the present invention.

6 and 7, when the other chapters of the sound book 100 are opened, the other surface 213b of the second page 213 and one surface of the third page 215 ( 215a) may be exposed. In this case, the second page 213 and the third page 215 may be connected to each other, and the other surface 213b of the second page 213 and one surface 215a of the third page 215 may be disposed to face each other. Can be.

In addition, a second flip page 223 may be disposed between the second page 213 and the third page 215. In this case, the second flip page 223 may be fixed to either the second page 213 or the third page 215 to be rotated left and right.

For example, the second flip page 223 is disposed to be fixed on one surface 215a of the third page 215 and may be integrally formed with the third page 215. In addition, the second flip page 223 may move to rotate left and right on one surface 215a of the third page 215.

However, the present invention is not limited thereto, and the second flip page 223 may be disposed on the boundary line C2 of the second page 213 and the third page 215.

The third optical sensor 123 may be disposed on the other surface 213b of the second page 213, and the fourth optical sensor 124 may be disposed on the one surface 215a of the third page 215. In this case, the third optical sensor 123 and the fourth optical sensor 124 may be disposed at a position overlapping with the second flip page 223.

The third optical sensor 123 and the fourth optical sensor 124 may be disposed to be symmetrical with respect to the second flip page 223. In addition, the third optical sensor 123 and the fourth optical sensor 124 may be disposed to be adjacent to the boundary line C2 of the second page 213 and the third page 215. However, this is only one example, and the present invention is not limited thereto.

As shown in FIG. 6, when the second flip page 223 is disposed to be adjacent to one surface 215a of the third page 215, the second flip page 223 is one surface 215a of the third page 215. ) Covers a fourth optical sensor 124 disposed on the substrate; In this case, a light source is detected by the third optical sensor 123 disposed on the other surface 213b of the second page 213, and the controller 110 based on the detection signal received from the third optical sensor 123. The third sound corresponding to the other surface 213b of the second page 213 is output through the speaker unit 130.

Subsequently, as shown in FIG. 7, when the second flip page 223 is rotated to be closer to the other surface 213b of the second page 213, the second flip page 223 is rotated to the other surface of the second page 213. The third optical sensor 123 disposed on the 213b is covered. In this case, since the light source is sensed by the fourth optical sensor 124 disposed on one surface 215a of the third page 215, the controller 110 based on the detection signal received from the fourth optical sensor 124. The fourth sound corresponding to the one surface 215a of the third page 215 is output through the speaker unit 130. In this case, the third sound may be different from the fourth sound.

That is, the user can rotate the second flip page 223 left and right, and when the second flip page 223 is in the first position (that is, the second flip page 223 is the third page 215). Outputs a third sound, and when the second flip page 223 is in the second position (that is, the second flip page 223 is the other surface of the second page 213). Adjacent to 213b), the fourth sound can be output.

If a light source is detected by both the third light sensor 123 and the fourth light sensor 124, the controller 110 compares the detected light amount to a page on which a larger light amount is detected. Outputs sound for

Similarly, in another embodiment of the invention, the sensor unit 120 may use a distance sensor in place of the optical sensor. In this case, the controller 110 may output a sound corresponding to each page by using the distance between the second flip page 223 and the distance sensor measured by the distance sensor.

For example, when the third signal measured by the third distance sensor is compared with the magnitude of the fourth signal measured by the fourth distance sensor, when the third signal is larger than the fourth signal, the third sound file is played. If the third signal is smaller than the fourth signal, the fourth sound file can be played.

Through this, the sound book 100 of the present invention, by using an optical sensor or a distance sensor that is relatively small and inexpensive, it is possible to freely arrange the position of the sensor in the sound book to improve the degree of freedom of design In addition, manufacturing costs can be reduced.

In addition, the sound book 100 of the present invention may output different sounds by moving the flip page within the spread page, thereby providing various sounds to the user on the same page.

As described above, the present invention may be variously substituted, modified, and changed without departing from the technical spirit of the present invention by those skilled in the art to which the present invention pertains. It is not limited by.

100: soundbook 105: cover
110: control unit 120: sensor unit
130: speaker 140: microphone
150: memory unit 160: communication unit
170: power supply section 172: cover section
174: battery unit 180: interface unit

Claims (11)

In a sound book including a plurality of pages,
First and second pages facing each other from side to side;
A first flip page fixed to the first page or the second page and disposed to rotate left and right;
A first sensor unit disposed on one surface of the first page at a position overlapping with the first flip page by rotation of the first flip page to sense light;
A second sensor unit disposed on one surface of the second page at a position overlapping with the first flip page by the rotation of the first flip page to sense light;
A speaker unit disposed at one side of the sound book to generate sound; And
And a controller configured to output a first sound or a second sound corresponding to the first page or the second page through the speaker unit when light is detected by the first sensor unit or the second sensor unit.
The first sensor unit is in contact with one surface of the first flip page by rotating the first flip page,
The second sensor unit is in contact with the other surface of the first flip page by rotating the first flip page.
Soundbook.
delete The method of claim 1,
The first sensor unit and the second sensor unit are arranged to be symmetrical with respect to the first flip page.
Soundbook.
The method of claim 1,
The controller may compare the magnitudes of the amounts of light detected by the first sensor unit and the second sensor unit, and output a sound for a page on which a sensor unit in which a larger light is detected is disposed.
Soundbook.
The method of claim 1,
A third page facing the other side of the second page,
A second flip page fixed to the second page or the third page and disposed to rotate left and right;
And a third sensor unit disposed on the other surface of the second page overlapping with the second flip page when the second flip page is rotated to be adjacent to the second page to sense light.
When the light is detected in the third sensor unit, the controller outputs a third sound corresponding to the other surface of the second page through the speaker unit.
Soundbook.
The method of claim 1,
The first flip page is formed to have a smaller size than the first or second page, and is fixed to either one of the first or second pages to rotate left and right.
Soundbook.
The method of claim 1,
The first sensor unit is configured to transfer the detected signal to the controller using wireless communication.
Soundbook.
The method of claim 1,
Further comprising a memory unit for storing different sound files allocated to each side of the plurality of pages,
The controller may be configured to play a sound file corresponding to one side or the other side of the page on which the sensor unit which senses light is disposed among the sensor units disposed on one side or the other side of the plurality of pages.
Soundbook.
In a sound book including a plurality of pages,
First and second pages facing each other from side to side;
A first flip page fixed to the first page or the second page and disposed to rotate left and right;
A first sensor unit disposed on one surface of the first page at a position overlapping with the first flip page by the rotation of the first flip page to sense light;
A second sensor unit disposed on one surface of the second page at a position overlapping with the first flip page by the rotation of the first flip page to sense light;
A speaker unit disposed at one side of the sound book to generate sound;
A memory unit for storing sound files for one side and the other side of the first page and the second page, respectively; And
And a controller configured to reproduce the sound file stored in the memory unit through the speaker unit based on the strength of the signal measured by the first sensor unit or the second sensor unit.
The first sensor unit is in contact with one surface of the first flip page by rotating the first flip page,
The second sensor unit is in contact with the other surface of the first flip page by rotating the first flip page.
Soundbook.
The method of claim 9,
The first sensor unit includes an optical sensor or a distance sensor
Soundbook.
The method of claim 9,
The controller compares the magnitudes of the first signal measured by the first sensor unit and the second signal measured by the second sensor unit to generate a first sound file when the first signal is larger than the second signal. To play a second sound file when the first signal is smaller than the second signal.
Soundbook.

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