KR20160084744A - Apparatus and method for controlling the same - Google Patents

Abstract

An electronic device according to the present invention can transmit a sound wave signal in a non-audible frequency band by using a microphone and a speaker. More specifically, the electronic device according to the present invention comprises: a speaker; a microphone receiving a sound wave signal generated from a first device; and a control unit when identification information corresponding to the sound wave signal is matched with a pre-set identification information, performs a function according to the sound wave signal, and when the identification information corresponding to the sound wave signal is not matched with the pre-set identification information, transmits the sound wave signal to a second device by using the speaker in order to run the function according to the sound wave signal on the second device which is different from the first device.

Description

[0001] APPARATUS AND METHOD FOR CONTROLLING THE SAME [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an electronic device capable of performing communication using a sound wave signal and a control method thereof.

A terminal can be divided into a mobile terminal (mobile / portable terminal) and a stationary terminal according to whether the terminal can be moved. The mobile terminal can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry the mobile terminal.

The functions of mobile terminals are diversified. For example, there are data and voice communication, photographing and video shooting through a camera, voice recording, music file playback through a speaker system, and outputting an image or video on a display unit. Some terminals are equipped with an electronic game play function or a multimedia player function. In particular, modern mobile terminals can receive multicast signals that provide visual content such as broadcast and video or television programs.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

In addition to performing wireless communication, electronic devices can perform sound wave communication using a microphone and a speaker. The communication using the sound wave signal is advantageous in that communication can be performed between all the electronic devices including the microphone and the speaker since it is not necessary to provide a separate wireless communication unit. However, when the user can hear the sound wave signal, There arises a disadvantage that an occurrence problem and a security problem arise.

 Accordingly, it is an object of the present invention to provide an electronic device capable of performing communication using a sound wave signal including a non-audible frequency region and a control method thereof.

According to an aspect of the present invention, there is provided an electronic device including a speaker, a microphone for receiving a sound wave signal generated in the first device, and a microphone for receiving the sound wave signal, The function corresponding to the sound wave signal is performed in accordance with the sound wave signal and the function corresponding to the sound wave signal is provided to the second device different from the first device in the case where the identification information corresponding to the sound wave signal does not match the predetermined identification information. And a controller for transmitting the sound wave signal to the second device using the speaker so as to be executed in the device.

In one embodiment, the controller receives a new sound wave signal through the microphone after the sound wave signal is received, and if the identification information corresponding to the sound wave signal and the new sound wave signal is different from the preset identification information If the function corresponding to the new sound wave signal is the same as the function corresponding to the sound wave signal, the function execution according to the new sound wave signal can be restricted.

In one embodiment, when the identification information corresponding to the sound wave signal does not match the predetermined identification information, the controller processes the sound wave signal so that the predetermined identification information is included in the sound wave signal, And transmit the processed sound wave signal to the second device.

In one embodiment, when the identification information corresponding to the sound wave signal does not match the preset identification information, the controller analyzes the sound wave signal, and determines that the sound wave is not received through the microphone Information on the transmission path of the signal is detected and the speaker can be controlled to limit the transmission of the sound wave signal if the information about the transmission path includes the predetermined identification information.

In one embodiment, when the feedback sound wave signal informing the execution of the function according to the sound wave signal is received from the second device through the microphone, the control unit controls the first sound source to transmit the feedback sound wave signal to the first device The speaker can be controlled.

The electronic device and the control method thereof according to the embodiment of the present invention have the effect of solving the noise problem and the security problem due to communication by controlling the specific electronic device using the sound wave signal in the non-audible frequency range . Further, by providing a control method capable of performing the sound wave communication using a plurality of electronic apparatuses including a microphone and a speaker based on the fact that long distance transmission is impossible due to the characteristics of sound waves in the non-audible frequency region, The device can be controlled successfully.

1A is a block diagram illustrating a mobile terminal according to the present invention.
1B and 1C are conceptual diagrams illustrating an example of a mobile terminal according to the present invention in different directions.
2A and 2B are diagrams illustrating an example in which non-audible sound signals are transmitted and received between electronic devices.
FIG. 3A is a flowchart for explaining a control method according to the present invention, and FIGS. 3B and 3C are representative views for explaining an embodiment according to the control method.
FIG. 4A is a flowchart related to a control method when a plurality of sound waves are received by a second device, and FIG. 4B is a diagram illustrating an embodiment when there are a plurality of electronic devices that transmit sound waves to a second device.
FIG. 5A is a flowchart related to a control method for reproducing and reproducing a sound signal received from the first device, and FIGS. 5B and 5C illustrate an embodiment related to processing and transmitting a sound signal in each electronic device .
FIG. 6 is a diagram showing the transmission of a feedback sound wave signal to the first device in the second device. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or similar elements are denoted by the same or similar reference numerals, and a duplicate description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a slate PC A tablet PC, an ultrabook, a wearable device such as a smartwatch, a smart glass, and a head mounted display (HMD). have.

However, it will be appreciated by those skilled in the art that the configuration according to the embodiments described herein may be applied to fixed terminals such as a digital TV, a desktop computer, a digital signage, and the like, will be.

1A to 1C are block diagrams for explaining a mobile terminal according to the present invention, and FIGS. 1B and 1C are conceptual diagrams showing an example of a mobile terminal according to the present invention in different directions.

The mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a control unit 180, ), And the like. The components shown in FIG. 1A are not essential for implementing a mobile terminal, so that the mobile terminal described herein may have more or fewer components than the components listed above.

The wireless communication unit 110 may be connected between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and another mobile terminal 100 or between the mobile terminal 100 and the external server 100. [ Lt; RTI ID = 0.0 > wireless < / RTI > In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short distance communication module 114, and a location information module 115 .

The input unit 120 includes a camera 121 or an image input unit for inputting a video signal, a microphone 122 for inputting an audio signal, an audio input unit, a user input unit 123 for receiving information from a user A touch key, a mechanical key, and the like). The voice data or image data collected by the input unit 120 may be analyzed and processed by a user's control command.

The sensing unit 140 may include at least one sensor for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information. For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, A G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor, a finger scan sensor, an ultrasonic sensor, A microphone 226, a battery gauge, an environmental sensor (for example, a barometer, a hygrometer, a thermometer, a radiation detection sensor, A thermal sensor, a gas sensor, etc.), a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric sensor, etc.). Meanwhile, the mobile terminal disclosed in the present specification can combine and utilize information sensed by at least two of the sensors.

The output unit 150 includes at least one of a display unit 151, an acoustic output unit 152, a haptic tip module 153, and a light output unit 154 to generate an output related to visual, auditory, can do. The display unit 151 may have a mutual layer structure with the touch sensor or may be integrally formed to realize a touch screen. The touch screen may function as a user input unit 123 that provides an input interface between the mobile terminal 100 and a user and may provide an output interface between the mobile terminal 100 and a user.

The interface unit 160 serves as a path to various types of external devices connected to the mobile terminal 100. The interface unit 160 is connected to a device having a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, And may include at least one of a port, an audio I / O port, a video I / O port, and an earphone port. In the mobile terminal 100, corresponding to the connection of the external device to the interface unit 160, it is possible to perform appropriate control related to the connected external device.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100. The memory 170 may store a plurality of application programs or applications running on the mobile terminal 100, data for operation of the mobile terminal 100, and commands. At least some of these applications may be downloaded from an external server via wireless communication. Also, at least a part of these application programs may exist on the mobile terminal 100 from the time of shipment for the basic functions (e.g., telephone call receiving function, message receiving function, and calling function) of the mobile terminal 100. Meanwhile, the application program may be stored in the memory 170, installed on the mobile terminal 100, and may be operated by the control unit 180 to perform the operation (or function) of the mobile terminal.

In addition to the operations related to the application program, the control unit 180 typically controls the overall operation of the mobile terminal 100. The control unit 180 may process or process signals, data, information, and the like input or output through the above-mentioned components, or may drive an application program stored in the memory 170 to provide or process appropriate information or functions to the user.

In addition, the controller 180 may control at least some of the components illustrated in FIG. 1A in order to drive an application program stored in the memory 170. FIG. In addition, the controller 180 may operate at least two of the components included in the mobile terminal 100 in combination with each other for driving the application program.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power to the components included in the mobile terminal 100. The power supply unit 190 includes a battery, which may be an internal battery or a replaceable battery.

At least some of the components may operate in cooperation with one another to implement a method of operation, control, or control of a mobile terminal according to various embodiments described below. In addition, the operation, control, or control method of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory 170. [

Hereinafter, the various components of the mobile terminal 100 will be described in detail with reference to FIG. 1A.

First, referring to the wireless communication unit 110, the broadcast receiving module 111 of the wireless communication unit 110 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. Two or more broadcast receiving modules may be provided to the mobile terminal 100 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.

The mobile communication module 112 may be a mobile communication module or a mobile communication module such as a mobile communication module or a mobile communication module that uses technology standards or a communication method (e.g., Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) And an external terminal, or a server on a mobile communication network established according to a long term evolution (e. G., Long Term Evolution-Advanced).

The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. The wireless Internet module 113 is configured to transmit and receive a wireless signal in a communication network according to wireless Internet technologies.

Wireless Internet technologies include, for example, wireless LAN (WLAN), wireless fidelity (Wi-Fi), wireless fidelity (Wi-Fi) Direct, DLNA (Digital Living Network Alliance), WiBro Interoperability for Microwave Access, High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) and Long Term Evolution-Advanced (LTE-A) 113 transmit and receive data according to at least one wireless Internet technology, including Internet technologies not listed above.

The wireless Internet module 113 for performing a wireless Internet connection through the mobile communication network can be used for wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE or LTE- May be understood as a kind of the mobile communication module 112.

The short-range communication module 114 is for short-range communication, and includes Bluetooth ™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB) (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technology. The short-range communication module 114 is connected to the mobile terminal 100 and the wireless communication system through the wireless area networks, between the mobile terminal 100 and another mobile terminal 100, or between the mobile terminal 100 ) And the other mobile terminal 100 (or the external server). The short-range wireless communication network may be a short-range wireless personal area network.

Here, the other mobile terminal 100 may be a wearable device (e.g., a smartwatch, a smart glass, etc.) capable of interchanging data with the mobile terminal 100 according to the present invention (smart glass), HMD (head mounted display)). The short range communication module 114 may detect (or recognize) a wearable device capable of communicating with the mobile terminal 100 around the mobile terminal 100. [ If the detected wearable device is a device authenticated to communicate with the mobile terminal 100 according to the present invention, the control unit 180 may transmit at least a part of the data processed by the mobile terminal 100 to the short- 114 to the wearable device. Therefore, the user of the wearable device can use the data processed by the mobile terminal 100 through the wearable device. For example, according to this, when a telephone is received in the mobile terminal 100, the user performs a telephone conversation via the wearable device, or when a message is received in the mobile terminal 100, It is possible to check the message.

The position information module 115 is a module for obtaining the position (or current position) of the mobile terminal, and a representative example thereof is a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, when the mobile terminal utilizes the GPS module, it can acquire the position of the mobile terminal by using a signal transmitted from the GPS satellite. As another example, when the mobile terminal utilizes the Wi-Fi module, it can acquire the position of the mobile terminal based on information of a wireless access point (AP) that transmits or receives the wireless signal with the Wi-Fi module. Optionally, the location information module 115 may perform any of the other functions of the wireless communication unit 110 to obtain data relating to the location of the mobile terminal, in addition or alternatively. The location information module 115 is a module used to obtain the location (or current location) of the mobile terminal, and is not limited to a module that directly calculates or obtains the location of the mobile terminal.

Next, the input unit 120 is for inputting image information (or signal), audio information (or signal), data, or information input from a user. For inputting image information, Or a plurality of cameras 121 may be provided. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170. [ A plurality of cameras 121 provided in the mobile terminal 100 may be arranged to have a matrix structure and various angles or foci may be provided to the mobile terminal 100 through the camera 121 having the matrix structure A plurality of pieces of image information can be input. In addition, the plurality of cameras 121 may be arranged in a stereo structure to acquire a left image and a right image for realizing a stereoscopic image.

The microphone 122 processes the external acoustic signal into electrical voice data. The processed voice data can be utilized variously according to a function (or a running application program) being executed in the mobile terminal 100. Meanwhile, the microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The user input unit 123 is for receiving information from a user and when the information is inputted through the user input unit 123, the control unit 180 can control the operation of the mobile terminal 100 to correspond to the input information . The user input unit 123 may include a mechanical input means (or a mechanical key such as a button located on the front, rear or side of the mobile terminal 100, a dome switch, a jog wheel, Jog switches, etc.) and touch-type input means. For example, the touch-type input means may comprise a virtual key, a soft key or a visual key displayed on the touch screen through software processing, And a touch key disposed on the touch panel. Meanwhile, the virtual key or the visual key can be displayed on a touch screen having various forms, for example, a graphic, a text, an icon, a video, As shown in FIG.

Meanwhile, the sensing unit 140 senses at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information, and generates a corresponding sensing signal. The control unit 180 may control the driving or operation of the mobile terminal 100 or may perform data processing, function or operation related to the application program installed in the mobile terminal 100 based on the sensing signal. Representative sensors among various sensors that may be included in the sensing unit 140 will be described in more detail.

First, the proximity sensor 141 refers to a sensor that detects the presence of an object approaching a predetermined detection surface, or the presence of an object in the vicinity of the detection surface, without mechanical contact by using electromagnetic force or infrared rays. The proximity sensor 141 may be disposed in the inner area of the mobile terminal or in proximity to the touch screen, which is covered by the touch screen.

Examples of the proximity sensor 141 include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. In the case where the touch screen is electrostatic, the proximity sensor 141 can be configured to detect the proximity of the object with a change of the electric field along the proximity of the object having conductivity. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.

On the other hand, for convenience of explanation, the act of recognizing that the object is located on the touch screen in proximity with no object touching the touch screen is referred to as "proximity touch & The act of actually touching an object on the screen is called a "contact touch. &Quot; The position at which the object is closely touched on the touch screen means a position where the object corresponds to the touch screen vertically when the object is touched. The proximity sensor 141 can detect a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, have. Meanwhile, the control unit 180 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern sensed through the proximity sensor 141 as described above, and further provides visual information corresponding to the processed data It can be output on the touch screen. Furthermore, the control unit 180 can control the mobile terminal 100 such that different operations or data (or information) are processed according to whether the touch to the same point on the touch screen is a proximity touch or a touch touch .

The touch sensor senses a touch (or touch input) applied to the touch screen (or the display unit 151) by using at least one of various touch methods such as a resistance film type, a capacitive type, an infrared type, an ultrasonic type, do.

For example, the touch sensor may be configured to convert a change in a pressure applied to a specific portion of the touch screen or a capacitance generated in a specific portion to an electrical input signal. The touch sensor may be configured to detect a position, an area, a pressure at the time of touch, a capacitance at the time of touch, and the like where a touch object touching the touch screen is touched on the touch sensor. Here, the touch object may be a finger, a touch pen, a stylus pen, a pointer, or the like as an object to which a touch is applied to the touch sensor.

Thus, when there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like. Here, the touch controller may be a separate component from the control unit 180, and may be the control unit 180 itself.

On the other hand, the control unit 180 may perform different controls or perform the same control according to the type of the touch object touching the touch screen (or a touch key provided on the touch screen). Whether to perform different controls or to perform the same control according to the type of the touch object may be determined according to the current state of the mobile terminal 100 or an application program being executed.

On the other hand, the touch sensors and the proximity sensors discussed above can be used independently or in combination to provide a short touch (touch), a long touch, a multi touch, a drag touch ), Flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, and the like. Touch can be sensed.

The ultrasonic sensor can recognize the position information of the object to be sensed by using ultrasonic waves. Meanwhile, the controller 180 can calculate the position of the wave generating source through the information sensed by the optical sensor and the plurality of ultrasonic sensors. The position of the wave source can be calculated using the fact that the light is much faster than the ultrasonic wave, that is, the time when the light reaches the optical sensor is much faster than the time the ultrasonic wave reaches the ultrasonic sensor. More specifically, the position of the wave generating source can be calculated using the time difference with the time when the ultrasonic wave reaches the reference signal.

The camera 121 includes at least one of a camera sensor (for example, a CCD, a CMOS, etc.), a photo sensor (or an image sensor), and a laser sensor.

The camera 121 and the laser sensor may be combined with each other to sense a touch of the sensing object with respect to the three-dimensional stereoscopic image. The photosensor can be laminated to the display element, which is adapted to scan the movement of the object to be detected proximate to the touch screen. More specifically, the photosensor mounts photo diodes and TRs (Transistors) in a row / column and scans the contents loaded on the photosensor using an electrical signal that varies according to the amount of light applied to the photo diode. That is, the photo sensor performs coordinate calculation of the object to be sensed according to the amount of change of light, and position information of the object to be sensed can be obtained through the calculation.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .

Also, the display unit 151 may be configured as a stereoscopic display unit for displaying a stereoscopic image.

In the stereoscopic display unit, a three-dimensional display system such as a stereoscopic system (glasses system), an autostereoscopic system (no-glasses system), and a projection system (holographic system) can be applied.

The sound output unit 152 may output audio data received from the wireless communication unit 110 or stored in the memory 170 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output unit 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output unit 152 may include a receiver, a speaker, a buzzer, and the like.

The haptic module 153 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 153 may be vibration. The intensity and pattern of the vibration generated in the haptic module 153 can be controlled by the user's selection or the setting of the control unit. For example, the haptic module 153 may synthesize and output different vibrations or sequentially output the vibrations.

In addition to vibration, the haptic module 153 may be configured to perform various functions such as a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 153 can transmit the tactile effect through the direct contact, and the tactile effect can be felt by the user through the muscles of the finger or arm. The haptic module 153 may include two or more haptic modules 153 according to the configuration of the mobile terminal 100.

The light output unit 154 outputs a signal for notifying the occurrence of an event using the light of the light source of the mobile terminal 100. Examples of events that occur in the mobile terminal 100 may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like.

The signal output from the light output unit 154 is implemented as the mobile terminal emits light of a single color or a plurality of colors to the front or rear surface. The signal output may be terminated by the mobile terminal detecting the event confirmation of the user.

The interface unit 160 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 160 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data in the mobile terminal 100 to an external device. For example, a port for connecting a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, an audio I / O port, a video I / O port, an earphone port, and the like may be included in the interface unit 160.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM) A universal subscriber identity module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the interface unit 160. [

The interface unit 160 may be a path through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, And various command signals may be transmitted to the mobile terminal 100. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

The memory 170 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 170 may store data related to vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 170 may be a flash memory type, a hard disk type, a solid state disk type, an SDD type (Silicon Disk Drive type), a multimedia card micro type ), Card type memory (e.g., SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read memory, a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs the storage function of the memory 170 on the Internet.

Meanwhile, as described above, the control unit 180 controls the operations related to the application program and the general operation of the mobile terminal 100. [ For example, when the state of the mobile terminal meets a set condition, the control unit 180 can execute or release a lock state for restricting input of a user's control command to applications.

In addition, the control unit 180 performs control and processing related to voice communication, data communication, video call, or the like, or performs pattern recognition processing to recognize handwriting input or drawing input performed on the touch screen as characters and images, respectively . Further, the controller 180 may control any one or a plurality of the above-described components in order to implement various embodiments described below on the mobile terminal 100 according to the present invention.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components. The power supply unit 190 includes a battery, the battery may be an internal battery configured to be chargeable, and may be detachably coupled to the terminal body for charging or the like.

In addition, the power supply unit 190 may include a connection port, and the connection port may be configured as an example of an interface 160 through which an external charger for supplying power for charging the battery is electrically connected.

As another example, the power supply unit 190 may be configured to charge the battery in a wireless manner without using the connection port. In this case, the power supply unit 190 may use at least one of an inductive coupling method based on a magnetic induction phenomenon from an external wireless power transmission apparatus and a magnetic resonance coupling method based on an electromagnetic resonance phenomenon Power can be delivered.

In the following, various embodiments may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

Referring to FIGS. 1B and 1C, the disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto and can be applied to various structures such as a folder type, a flip type, a slide type, a swing type, and a swivel type in which a watch type, a clip type, a glass type or two or more bodies are relatively movably coupled . A description of a particular type of mobile terminal, although relevant to a particular type of mobile terminal, is generally applicable to other types of mobile terminals.

Here, the terminal body can be understood as a concept of referring to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (for example, a frame, a housing, a cover, and the like) that forms an appearance. As shown, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102.

A display unit 151 is disposed on a front surface of the terminal body to output information. The window 151a of the display unit 151 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101. [

In some cases, electronic components may also be mounted on the rear case 102. Electronic parts that can be mounted on the rear case 102 include detachable batteries, an identification module, a memory card, and the like. In this case, a rear cover 103 for covering the mounted electronic components can be detachably coupled to the rear case 102. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic parts mounted on the rear case 102 are exposed to the outside.

As shown, when the rear cover 103 is coupled to the rear case 102, a side portion of the rear case 102 can be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the engagement. Meanwhile, the rear cover 103 may be provided with an opening for exposing the camera 121b and the sound output unit 152b to the outside.

These cases 101, 102, and 103 may be formed by injection molding of synthetic resin or may be formed of metal such as stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

The mobile terminal 100 may be configured such that one case provides the internal space, unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components. In this case, a unibody mobile terminal 100 in which synthetic resin or metal is connected from the side to the rear side can be realized.

Meanwhile, the mobile terminal 100 may include a waterproof unit (not shown) for preventing water from penetrating into the terminal body. For example, the waterproof portion is provided between the window 151a and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear cover 103, And a waterproof member for sealing the inside space of the oven.

The mobile terminal 100 is provided with a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, a light output unit 154, Cameras 121a and 121b, first and second operation units 123a and 123b, a microphone 122, an interface unit 160, and the like.

1B and 1C, a display unit 151, a first sound output unit 152a, a proximity sensor 141, an illuminance sensor 142, an optical output unit (not shown) A second operation unit 123b, a microphone 122 and an interface unit 160 are disposed on a side surface of the terminal body, And a mobile terminal 100 having a second sound output unit 152b and a second camera 121b disposed on a rear surface thereof.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed, or placed on different planes. For example, the first operation unit 123a may not be provided on the front surface of the terminal body, and the second sound output unit 152b may be provided on the side surface of the terminal body rather than the rear surface of the terminal body.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, a 3D display, and an e-ink display.

In addition, the display unit 151 may exist in two or more depending on the embodiment of the mobile terminal 100. In this case, the mobile terminal 100 may be provided with a plurality of display portions spaced apart from each other or disposed integrally with one another, or may be disposed on different surfaces, respectively.

The display unit 151 may include a touch sensor that senses a touch with respect to the display unit 151 so that a control command can be received by a touch method. When a touch is made to the display unit 151, the touch sensor senses the touch, and the control unit 180 generates a control command corresponding to the touch based on the touch. The content input by the touch method may be a letter or a number, an instruction in various modes, a menu item which can be designated, and the like.

The touch sensor may be a film having a touch pattern and disposed between the window 151a and a display (not shown) on the rear surface of the window 151a, or may be a metal wire . Alternatively, the touch sensor may be formed integrally with the display. For example, the touch sensor may be disposed on a substrate of the display or inside the display.

In this way, the display unit 151 can form a touch screen together with the touch sensor. In this case, the touch screen can function as a user input unit 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first operation unit 123a.

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to a user's ear and the second sound output unit 152b may be implemented as a loud speaker for outputting various alarm sounds or multimedia playback sounds. ). ≪ / RTI >

The window 151a of the display unit 151 may be provided with an acoustic hole for emitting the sound generated from the first acoustic output unit 152a. However, the present invention is not limited to this, and the sound may be configured to be emitted along an assembly gap (for example, a gap between the window 151a and the front case 101) between the structures. In this case, the appearance of the mobile terminal 100 can be made more simple because the hole formed independently for the apparent acoustic output is hidden or hidden.

The optical output unit 154 is configured to output light for notifying the occurrence of an event. Examples of the event include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and reception of information through an application. The control unit 180 may control the light output unit 154 to terminate the light output when the event confirmation of the user is detected.

The first camera 121a processes an image frame of a still image or a moving image obtained by the image sensor in the photographing mode or the video communication mode. The processed image frame can be displayed on the display unit 151 and can be stored in the memory 170. [

The first and second operation units 123a and 123b may be collectively referred to as a manipulating portion as an example of a user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100 have. The first and second operation units 123a and 123b can be employed in any manner as long as the user is in a tactile manner such as touch, push, scroll, or the like. In addition, the first and second operation units 123a and 123b may be employed in a manner that the user operates the apparatus without touching the user through a proximity touch, a hovering touch, or the like.

In this figure, the first operation unit 123a is a touch key, but the present invention is not limited thereto. For example, the first operation unit 123a may be a mechanical key or a combination of a touch key and a touch key.

The contents input by the first and second operation units 123a and 123b can be variously set. For example, the first operation unit 123a receives a command such as a menu, a home key, a cancellation, a search, and the like, and the second operation unit 123b receives a command from the first or second sound output unit 152a or 152b The size of the sound, and the change of the display unit 151 to the touch recognition mode.

On the other hand, a rear input unit (not shown) may be provided on the rear surface of the terminal body as another example of the user input unit 123. The rear input unit is operated to receive a command for controlling the operation of the mobile terminal 100, and input contents may be variously set. For example, commands such as power on / off, start, end, scrolling, and the like, the size adjustment of the sound output from the first and second sound output units 152a and 152b, And the like can be inputted. The rear input unit may be implemented as a touch input, a push input, or a combination thereof.

The rear input unit may be disposed so as to overlap with the front display unit 151 in the thickness direction of the terminal body. For example, the rear input unit may be disposed at the rear upper end of the terminal body such that when the user holds the terminal body with one hand, the rear input unit can be easily manipulated using the index finger. However, the present invention is not limited thereto, and the position of the rear input unit may be changed.

When a rear input unit is provided on the rear surface of the terminal body, a new type of user interface using the rear input unit can be realized. When the first operation unit 123a is not disposed on the front surface of the terminal body in place of at least a part of the functions of the first operation unit 123a provided on the front surface of the terminal body, The display unit 151 may be configured as a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing the fingerprint of the user, and the controller 180 may use the fingerprint information sensed through the fingerprint recognition sensor as authentication means. The fingerprint recognition sensor may be embedded in the display unit 151 or the user input unit 123.

The microphone 122 is configured to receive the user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations to receive stereophonic sound.

The interface unit 160 is a path through which the mobile terminal 100 can be connected to an external device. For example, the interface unit 160 may include a connection terminal for connection with another device (for example, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port A wireless LAN port, or the like), or a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 may be implemented as a socket for receiving an external card such as a SIM (Subscriber Identification Module) or a UIM (User Identity Module) or a memory card for storing information.

And a second camera 121b may be disposed on a rear surface of the terminal body. In this case, the second camera 121b has a photographing direction which is substantially opposite to that of the first camera 121a.

The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix form. Such a camera can be named an 'array camera'. When the second camera 121b is configured as an array camera, images can be taken in various ways using a plurality of lenses, and a better quality image can be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. The flash 124 shines light toward the subject when the subject is photographed by the second camera 121b.

And a second sound output unit 152b may be additionally disposed in the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a and may be used for implementing a speakerphone mode in a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be embedded in the terminal body or formed in the case. For example, an antenna constituting a part of the broadcast receiving module 111 (see FIG. 1A) may be configured to be able to be drawn out from the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner surface of the rear cover 103, or a case including a conductive material may be configured to function as an antenna.

The terminal body is provided with a power supply unit 190 (see FIG. 1A) for supplying power to the mobile terminal 100. The power supply unit 190 may include a battery 191 built in the terminal body or detachable from the outside of the terminal body.

The battery 191 may be configured to receive power through a power cable connected to the interface unit 160. In addition, the battery 191 may be configured to be wirelessly chargeable through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

The rear cover 103 is configured to be coupled to the rear case 102 so as to cover the battery 191 to restrict the release of the battery 191 and to protect the battery 191 from external impact and foreign matter . When the battery 191 is detachably attached to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.

The mobile terminal 100 may be provided with an accessory that protects the appearance or supports or expands the function of the mobile terminal 100. [ One example of such an accessory is a cover or pouch that covers or accommodates at least one side of the mobile terminal 100. [ The cover or pouch may be configured to interlock with the display unit 151 to expand the function of the mobile terminal 100. Another example of an accessory is a touch pen for supplementing or extending a touch input to the touch screen.

Hereinafter, embodiments related to the control method according to the present invention will be described with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

The communication method using non-audible sound waves according to the present invention can be implemented between electronic devices having a microphone and a speaker. More specifically, the first device may generate a sound wave signal including a control command for controlling the execution of a specific function with respect to the second device. At this time, when the second device can not receive the sound wave signal (for example, when the distance between the first device and the second device is too long or the sound wave is not received due to the obstacle between the first device and the second device In the case where it is difficult to receive a signal, the sound wave signal may be transmitted to the second device by an electronic device other than the first and second devices. That is, after the other device receives the sound wave signal, it may retransmit the sound wave signal toward the second device. Therefore, even if the wireless communication function is not provided, other electronic devices having a microphone and a speaker can be used to control a specific target device located at a long distance to perform a desired function.

Hereinafter, the non-audible sound wave communication according to the present invention will be described with reference to FIGS. 2A and 2B.

2A and 2B are diagrams illustrating an example in which non-audible sound signals are transmitted and received between electronic devices.

Non-audible sound wave communication refers to the use of sound waves in the non-audible range in performing communication using sound waves. That is, it means that a sound wave signal containing specific information is formed and transmitted within the range of non-visible range. In this way, when a sound wave in the non-audible frequency range is used, the user can feel no inconvenience because the sound corresponding to the sound wave is not heard, and the security of information contained in the sound wave can be maintained. However, since the sound waves in the non-audible high-frequency band are strong in straightness and their sizes are rapidly attenuated as they are distant from each other, the success rate of the sound waves using the non-audible high-frequency band is low.

2A, when a non-audible sound signal is generated from the first device 100 toward the second device 200, the non-audible sound signal is separated from the first device 100 by its size Can be rapidly attenuated. In this case, the non-audible sound signal may be gradually attenuated as it moves away from the first device 100, and may disappear at a specific distance l. Therefore, the non-audible sound signal can not be received from the first device 100 and the second device 200 located at a long distance (R).

In order to solve such a problem, the control method according to the present invention can transmit the non-audible sound wave signal using the first and second devices and other devices. That is, as shown in FIG. 2B, there may be another device 300 located at a specific distance 1 from the first device 100. In this case, the non-audible sound signal can be received from the first device 100 and the other device 300 located at the specific distance l. In this way, when the other device 300 receives the non-audible sound signal, the non-audible sound signal can be reproduced using the speaker so that the non-audible sound signal can be received by the second device 200 have. Accordingly, the second device 200 can receive the non-audible sound signal generated by the first device 100 through the other device 300.

As described above, even when the sound wave signal in the non-audible frequency range is used, the success rate of the non-audible sound communication can be increased by transmitting the sound wave signal in the non-audible frequency range to a desired device using another device having a microphone and a speaker .

Here, the other device may determine the device to which the sound wave signal is subjected by using the identification information corresponding to the sound wave signal received from the first device. can do. In this regard, description will be made with reference to Figs. 3A, 3B and 3C. Hereinafter, the electronic device that generates the sound wave signal will be referred to as a first device, and the electronic device to be controlled by the sound wave signal will be referred to as a second device.

FIG. 3A is a flowchart for explaining a control method according to the present invention, and FIGS. 3B and 3C are representative views for explaining an embodiment according to the control method.

Referring to FIG. 3A, a sound signal generated in the first device can be received through a microphone of a certain electronic device (S310).

Here, the first device may include all kinds of electronic devices capable of generating a sound wave signal. That is, an electronic device having a control unit capable of forming a control command for controlling a specific device and a speaker capable of generating a sound wave may be applied thereto. For example, the first device may be the mobile terminal 100 as shown in FIGS. 3B and 3C.

In addition, the sound wave signal may include specific information as a sound wave signal including a non-audible frequency region. More specifically, the specific information may include identification information for the first device that generates the sound wave signal. In addition, the specific information may include identification information on a device to be controlled by the sound wave signal. Here, the identification information may mean unique ID information or the like capable of identifying each electronic device itself. In addition, the specific information may include control information for controlling the device to be controlled.

When the sound wave signal is received from one of the electronic devices, the control unit of the electronic device may determine whether the identification information corresponding to the sound wave signal is identical to the predetermined identification information at step S320.

That is, one of the electronic apparatuses may analyze the identification information corresponding to the received sound wave signal to determine a device to be the target of the sound wave signal. Here, the control unit of any of the above-described electronic devices determines whether the identification information corresponding to the sound wave signal (the identification information of the device that is the object of the sound wave signal) matches the identification information set in any of the electronic devices .

The control unit of any of the electronic devices may be configured such that when the predetermined identification information and the identification information corresponding to the sound wave signal match in any of the electronic devices, Device. Then, the control unit of any one of the above-described electronic devices can execute the function corresponding to the sound wave signal (S330).

That is, when one of the electronic devices determines that the second device, which is the object of the sound wave signal received through the microphone, is one of the electronic devices, analyzes the sound wave signal, and based on the control information included in the sound wave signal The function corresponding to the sound wave signal can be executed. For example, as shown in FIG. 3B, when one of the electronic devices is the refrigerator 200, the control unit of the refrigerator 200 controls the second device, which is the object of the control of the sound wave signal received through the microphone, . In this case, the control unit of the refrigerator 200 may analyze the sound wave signal received from the first device 100 and lower the temperature by 2 ° C in accordance with the sound wave signal.

On the other hand, if the predetermined identification information of the electronic equipment does not match with the identification information corresponding to the sound wave signal, the one electronic equipment can transmit the sound wave signal to the second equipment using a speaker (S340 ).

That is, if any one of the electronic devices does not match the identification information corresponding to the sound wave signal, the electronic device can determine that the device to be controlled by the sound wave signal is not one of the electronic devices. And, the sound wave signal can be reproduced through the speaker so that the sound wave signal can be transmitted to the device to be controlled.

3C, the control unit of the refrigerator 300 determines that the sound wave signal received from the first device 100 is received by the second device 200, for example, when the first electronic device is the refrigerator 300. For example, So that the speaker can be controlled.

Here, the reproduced sound wave signal may be a signal processed from the sound wave signal received through the microphone. Also, the reproduced sound wave signal may be a sound wave signal including an inaudible frequency domain. The control method of processing the sound wave signal to reproduce the sound signal will be described later with reference to FIG. 5A.

In this way, even when the sound wave signal generated in the first device can not be directly transmitted to the second device, the sound wave signal is transmitted through another electronic device having a microphone and a speaker to control the second device .

3C illustrates an example in which one electronic device transmits an acoustic signal to the second device. However, a plurality of electronic devices capable of transmitting an acoustic signal to the second device may be used. In this regard, description will be made with reference to Figs. 4A and 4B.

FIG. 4A is a flowchart related to a control method when a plurality of sound waves are received by a second device, and FIG. 4B is a diagram illustrating an embodiment when there are a plurality of electronic devices that transmit sound waves to a second device.

First, referring to FIG. 4A, the second device can receive the sound wave signal generated in the first device through the microphone (S310).

Here, the sound wave signal may be received directly from the first device, or may be a sound wave signal transmitted from another electronic device to the sound wave signal generated by the first device.

After receiving the sound wave signal, the second device can receive a new sound wave signal different from the sound wave signal through the microphone (S410).

Here, the new sound wave signal may be received directly from the first device, or may be a sound wave signal received from another electronic device by the first device.

More specifically, as shown in FIG. 4B, there may be a plurality of electronic devices for transmitting the sound wave signal to the second device. In this case, each of the electronic devices 301, 302, and 303 receives the sound wave signal from the first device 100 and sets the identification information corresponding to the sound wave signal to each of the devices 301, 302, and 303 And can be compared with identification information. Further, if it is determined that the device is not the device to which the sound wave signal belongs, the electronic devices 301, 302, and 303 may reproduce the received sound wave signal using a speaker. At this time, the second device 200 can receive a plurality of sound waves from the electronic devices 301, 302, and 303.

Here, the sound wave signals received from the respective electronic devices 301, 302, and 303 may be received by the second device 200 according to a temporal posterior relationship. For example, the second device 200 may first receive a sound wave signal from the device A 301, and then receive a new sound wave signal from the device B 302.

When the second device receives a plurality of sound wave signals, the control unit of the second device determines whether the identification information corresponding to the sound wave signal and the new sound wave signal respectively match the identification information set in the second device (S420).

That is, when the sound wave signal is received, the control unit of the second device determines whether or not the identification information corresponding to the sound wave signal matches predetermined identification information, and if the device to be controlled of the sound wave signal is the second It can be determined whether the device is a device. In addition, the control unit of the second device can similarly determine whether the device that is the target of the new sound wave signal is the second device through analysis of the new sound wave signal.

If it is determined that the target device of the sound wave signal is the second device, the control unit of the second device may perform the function corresponding to the sound wave signal using the received sound wave signal.

In addition, the new sound wave signal received after the sound wave signal is received may be analyzed and it may be determined whether the function corresponding to the new sound wave signal is the same as the function corresponding to the sound wave signal (S430).

If the function according to the new sound wave signal is the same as the function according to the sound wave signal, the control unit of the second device can determine that the sound wave generated in the first device is received redundantly through other electronic devices . Accordingly, the new sound wave signal received later in time may be ignored (S440). That is, the execution of the function according to the new sound wave signal can be restricted.

On the other hand, when the function according to the new sound wave signal is different from the function according to the sound wave signal, the new sound wave signal can be determined as a sound wave signal including a control command different from the sound wave signal. Accordingly, the control unit of the second device can perform the function corresponding to the new sound wave signal (S450).

In this way, when the sound wave signal generated by the first device is transmitted through the plurality of electronic devices, the control unit of the second device may receive the plurality of sound wave signals from the plurality of electronic devices, It is possible to judge whether or not they are overlapped with each other. That is, when a function corresponding to the new sound wave signal is identical to a function corresponding to the sound wave signal when a new sound wave signal is received after the execution of the function corresponding to the previously received sound wave signal according to the temporal posterior relationship, It can be determined that the signal is an overlapping sound wave signal. Therefore, it is possible to prevent the inefficient control of duplicating and performing the functions even if the acoustic wave signals including the same control command are transmitted from the plurality of electronic devices by the non-audible sound communication according to the present invention.

On the other hand, a plurality of electronic devices transmitting sound wave signals to the second device may re-generate the sound wave communication received from the first device through the speaker. More specifically, the plurality of electronic devices can determine that the sound wave signal is not a sound wave signal that is intended for each of the plurality of electronic devices. In this case, each of the plurality of electronic devices can not grasp the second device that is the target of the sound wave signal, and can determine only that the signal is not a signal to each of the plurality of electronic devices. Therefore, the plurality of electronic devices can uniformly re-generate the sound wave signal based on the determination that each of the plurality of electronic devices is not a target sound wave signal.

Here, the regenerated sound wave signal may be transmitted to the plurality of electronic devices in addition to being transmitted to the second device. In the case of receiving the reproduced sound wave signal among the plurality of electronic devices, the identification information corresponding to the reproduced sound wave signal may be analyzed and the reproduced sound wave signal may be reproduced again in a uniform manner . Therefore, each of the plurality of electronic apparatuses can perform predetermined processing in reoccurring the sound wave signal so as not to reproduce the reproduced sound wave signal again. In this regard, description will be made with reference to Figs. 5A, 5B and 5C.

FIG. 5A is a flowchart related to a control method for reproducing sound signals received from a first device and then regenerating them. FIG. 5B is a diagram illustrating an example of transmitting / receiving sound signals reproduced between a plurality of electronic devices, And a process of processing and transmitting a sound signal in each electronic device.

First, referring to FIG. 5A, an electronic device can receive a sound wave signal generated in the first device (S310).

Here, the number of the electronic devices may be plural. 5B, the sound wave signal generated in the first device 100 may be transmitted to the second device 200 through the plurality of electronic devices 301 and 302. FIG.

In this case, the electronic device may determine that the identification information corresponding to the sound wave signal does not match the identification information set in the electronic device (S510). That is, the electronic device can determine that the second device, which is the target of the sound signal generated by the first device, is not the electronic device. The sound wave signal may be re-generated so that the sound wave signal is transmitted to the second device.

At this time, the electronic device may process the sound wave signal so that the sound wave signal includes the identification information of the electronic device (S520).

Here, the control unit of the electronic device may process the sound wave signal so that the sound wave signal includes information about a path for transmitting the sound wave signal. Here, the information on the path for transmitting the sound wave signal may mean information about electronic devices that transmit the sound wave signal to the second device. More specifically, the information about the path for transmitting the sound wave signal may include identification information of each electronic device that transmits the sound wave signal to the second device.

That is, referring to FIG. 5B, it is possible to process the sound wave signal so that the device A 301 includes the identification information of the device A 301 in the sound wave signal received from the first device. The device B 302 may also process the sound wave signal so that the sound wave signal includes the identification information of the device B 302.

When the sound wave signal is processed, the control unit of the electronic device may output the processed sound wave signal using a speaker (S530).

5B, the sound wave signals processed by the device A 301 and the device B 302 may be outputted through the speakers included in the device A 301 and the device B 302, respectively. The sound wave signals processed by the device A 301 and the device B 302 can be transmitted and received between the device A 301 and the device B 302. Also, the sound waves processed by the device A 301 and the device B 302 may be transmitted to the second device 200.

Therefore, even if the device A 301 and the device B 302 receive the sound signal reproduced from each of the device A 301 and the device B 302, it is possible to prevent reoccurrence again. See Figure 5c for a more detailed description.

Referring to FIG. 5C, the device A and the device B can receive a sound wave signal from the first device 100. Here, the sound wave signal may be a sound wave signal for the second device 200. In this case, the device A and the device B can reproduce each of the sound wave signals. That is, the sound wave signal received from the first device 100 may be processed and re-generated so that the unique identification information A of the device A and the unique identification information B of the device B are included.

In this way, when the sound wave signals processed in the devices A and B are reproduced through the speakers provided in the devices A and B, respectively, the processed sound signals are transmitted to the second device 200 And can be received again in each of the device A and the device B. In this case, each of the device A and the device B can process and reproduce the received sound wave signals with each other.

More specifically, when the device A receives the sound wave signal including the unique identification information (B) of the device B from the device B, the sound wave signal includes its own unique identification information (A) The signal BA can be re-generated. In addition, when the device B receives the sound wave signal including the unique identification information A of the device A, the device B may include the unique identification information B in the sound wave signal, Lt; / RTI >

As described above, when the processed sound wave signals AB and BA are reproduced, the processed sound wave signals AB and BA can be received through the microphones respectively provided in the apparatuses A and B, respectively. In this case, the device A and the device B analyze the information about the propagation path of the sound wave signal included in the processed sound wave signals AB and BA, and prevent duplication and reoccurrence.

That is, when receiving the processed sound wave AB, the device A analyzes the information about the propagation path included in the processed sound wave signal AB, and identifies the own information in the information about the propagation path Or not. In this case, if it is determined that the processed sound wave signal AB includes its own identification information A, it is determined that the processed sound wave signal AB was a previously reproduced signal, . That is, the device A may further generate the sound wave signal ABA processed with the sound wave signal AB, or may not output the further processed sound wave signal ABA.

Similarly, when the processed acoustic signal BA is received in the device B, it is possible to prevent further processing or re-generation based on the analysis of the processed acoustic signal BA.

In this way, each electronic apparatus transmits the sound wave signal to the second apparatus by performing the processing so that the same sound wave signal (identification information of the first apparatus, identification information of the second apparatus, The same sound wave signal) can be prevented from being repeatedly reproduced.

Meanwhile, when the second device performs a function according to the sound wave signal transmitted from the first device, the second device can generate a feedback sound wave signal indicating the performance of the function. Also, the feedback sound wave signal may be transmitted to the first device through other electronic devices as well as the sound wave signal generated from the first device. This will be described with reference to FIG.

FIG. 6 is a diagram illustrating a feedback sound signal transmitted from the second device to the first device. FIG.

Referring to FIG. 6, the second device 200 may perform a function (function of lowering the temperature by 2 캜) according to a sound wave signal transmitted from the first device 100. In this case, the second device 200 may form a feedback sound signal indicating that the function corresponding to the sound wave signal has been performed. Also, the feedback sound wave signal may be a sound wave signal including a non-audible frequency region. In this way, the second device 200, which has formed the feedback sound signal, can output the feedback sound signal through the speaker.

In this case, another electronic device 300 located within a predetermined distance from the second device 200 may receive the feedback sound wave signal. The identification information corresponding to the feedback sound wave signal (here, the identification information corresponding to the feedback sound wave signal may be the identification information of the first device) may be compared with its own identification information. Also, if it is determined that the device to be the target of the feedback sound wave signal is not itself, the other electronic device 300 may process the feedback sound wave signal and re-generate the feedback sound wave signal using a speaker.

As described above, the regenerated feedback sound wave signal can be received by the first device 100. 6, if the first device 100 is a terminal including the display unit 151, information indicating that the function is performed in the second device 200 is output to the display unit 151 . That is, a pop-up window 10a indicating that the function is performed in the second device 200 (air conditioner) may be output to the display unit 151 of the first device 100. [

Therefore, even if the user performs a function of controlling other devices using the unheard sound wave signal, the user can receive information on the control status of the other device through the feedback sound wave signal transmitted to the first device .

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer readable medium include a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, , And may also be implemented in the form of a carrier wave (e.g., transmission over the Internet). Also, the computer may include a control unit 180 of the terminal. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

Claims (5)

speaker;
A microphone for receiving a sound wave signal generated by the first device; And
When the identification information corresponding to the sound wave signal coincides with the predetermined identification information, executes a function corresponding to the sound wave signal,
Wherein the sound information processing unit is configured to perform the function corresponding to the sound wave signal in a second device different from the first device when the identification information corresponding to the sound wave signal does not match the preset identification information, To the second device (200). The apparatus of claim 1,
When a new sound wave signal is received through the microphone after the sound wave signal is received and identification information corresponding to the sound wave signal and the new sound wave signal is identical to the preset identification information,
And limits the execution of the function according to the new sound wave signal if the function corresponding to the new sound wave signal is the same as the function corresponding to the sound wave signal. The apparatus of claim 1,
When the identification information corresponding to the sound wave signal does not match the preset identification information,
Processing the sound wave signal so that the sound wave signal includes the predetermined identification information, and transmitting the processed sound wave signal to the second device. The apparatus of claim 1,
When the identification information corresponding to the sound wave signal does not coincide with the preset identification information, analyzes the sound wave signal and grasps information about the transmission path of the sound wave signal before the sound wave signal is received through the microphone ,
And controls the speaker to limit transmission of the sound wave signal if the information about the transmission path includes the predetermined identification information. The apparatus of claim 1,
When a feedback sound wave signal informing execution of a function according to the sound wave signal is received from the second device through the microphone,
And controls the speaker so that the feedback sound wave signal is transmitted to the first device.

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