KR101789540B1 - Method for Wirelessly charging battery, Wireless charger, and electronic device - Google Patents

Abstract

According to an embodiment of the present invention, a method in an electronic device capable of receiving power by radio and charging the battery is presented. The method includes the steps of initiating charging of a battery using power received wirelessly from a wireless charger; Establishing data communication with the wireless charger; And transmitting the at least one signal to the wireless charger through the established communication when at least one of an audio signal, a video signal, and a data signal to be output is generated while the battery is being charged.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wireless charging method, a wireless charger,

The present invention relates to a wireless charging technique.

As the portability of various electronic devices of users is emphasized, the efficiency of the battery gradually becomes more important. Therefore, various technologies for high efficiency of the battery have been suggested.

There have been attempts to increase the efficiency of the battery, but there has been no significant progress in charging the battery.

Particularly, since each power supply adapter must be provided for charging each electronic device, it is very troublesome for the user.

In recent years, various studies have been conducted to wirelessly charge electronic devices.

The wireless charging is an epoch-making energy transfer concept that removes the line for charging and can transfer energy electronically.

Therefore, an embodiment of the present invention aims to provide a method of efficiently charging an electronic device wirelessly.

In addition, an embodiment of the present invention allows the plurality of electronic devices to be distinguished from each other when the electronic devices are wirelessly charged.

According to an embodiment of the present invention, there is provided a method of an electronic device capable of charging a battery by receiving power wirelessly. The method includes the steps of initiating charging of a battery using power received wirelessly from a wireless charger; Establishing data communication with the wireless charger; And transmitting the at least one signal to the wireless charger through the established communication when at least one of an audio signal, a video signal, and a data signal to be output is generated while the battery is being charged.

The electronic device may correspond to any one of a mobile communication terminal, a multimedia device, and a tablet device.

The audio signal to be output may include at least one of an audio signal according to the reproduction of the content, a notification sound signal for informing the reception of the call or message, and a voice signal for the call. In addition, the video signal to be output may include at least one of a video signal for informing the reception of a video signal, a call or a message according to the reproduction of the content, and a video signal for the call. In addition, the data signal to be output may include at least one of information about a content being reproduced, identification information of the electronic device, identification information of a counterpart of a call or a message.

The data signal may be identification information. In this case, when a call or message is received during the charging, the transmitting and receiving step may transmit at least one of the identification information of the electronic device and the identification information of the other party of the telephone or message to the wireless charger.

The audio signal may be a notification sound. In this case, in the transmission / reception step

If a call or message is received during the charging, the wireless charger may transmit a notification sound to inform reception of the telephone or message via the established data communication.

Stopping the transmission when at least one of an audio signal, a video signal, and a data signal to be output is generated while transmitting the one or more signals to the wireless charger; And transmitting the one or more other signals to be output to the charger.

The one or more signals for which transmission is interrupted may be an audio signal according to sound source content reproduction, and the other one or more signals to be outputted may be an audio signal according to a telephone conversation.

The method may further include changing a mode for informing an incoming call or a message to a sound mode after starting charging the battery.

In the modifying step, the sound may be a predetermined sound, a sound indicated by the charger, or a randomly selected sound.

According to an aspect of the present invention, there is provided an electronic device capable of charging a battery by receiving power wirelessly. The electronic device includes a wireless charging circuit unit for wirelessly receiving power from a wireless charger to charge the battery; A communication unit for establishing data communication with the wireless charger; Wherein the charging circuit unit and the communication unit are connected to the wireless charger through the established communication when at least one of an audio signal, a video signal, and a data signal to be output is generated while charging the battery, And a controller for controlling the transmission to be performed.

The electronic device may correspond to any one of a mobile communication terminal, a multimedia device, and a tablet device.

According to an aspect of the present invention, there is provided a method for charging a battery by wirelessly transmitting power for charging the battery. The method includes initiating a wireless power supply to an electronic device; Establishing a data communication with the electronic device; Receiving and transmitting at least one of an audio signal, a video signal, and a data signal through the established communication with the electronic device; And outputting one or more received signals.

In the transmitting and receiving step, a signal for requesting to change the notification mode of the electronic device to the sound generating mode may be transmitted.

The change request signal may include a request to cause the electronic devices to have different sounds when there are a plurality of electronic devices whose charging is started.

In the transmitting and receiving step, the audio signal may include at least one of an audio signal of a content to be played back in the electronic device, a notification sound signal for notifying a reception of a call or a message, and a voice signal for a call. In addition, the video signal may include at least one of a video signal for informing an incoming call of a video signal, a call or a message of a content to be played back in the electronic device, and a video signal by a call. In addition, the data signal may include at least one of information about a content being played back in the electronic device, identification information of the electronic device, identification information about a counterpart of a call or a message.

The method comprising the steps of: stopping the output when receiving one or more of the other audio signals, video signals, and data signals while outputting the received one or more signals; And outputting the received one or more other signals.

According to another aspect of the present invention, there is provided a charger for wirelessly transmitting power for charging a battery. The charger includes: an output unit for outputting audio or video; A charging circuit unit for supplying wireless power to the electronic device; A communication unit for establishing data communication with the electronic device; And a control unit connected to the charging circuit unit, the communication unit, and the output unit to transmit and receive at least one of an audio signal, a video signal, and a data signal to / from the electronic device via the established communication, And a controller for outputting the output signal through the output unit.

The body of the charger may be formed of a pad type structure, a foldable pad type structure, or a slide pad structure.

An embodiment of the present invention enables efficient charging of a plurality of electronic devices wirelessly.

In addition, an embodiment of the present invention prevents mutual distinction of a user by making it possible to distinguish among notification signals generated in the plurality of electronic devices when wirelessly charging a plurality of electronic devices.

1 is an exemplary view conceptually showing a wireless charger according to embodiments of the present invention.
2 is a block diagram exemplarily showing the configuration of the electronic induction type charger 100 and the electronic device 200 that can be employed in the embodiments of the present invention.
3 is a block diagram exemplarily showing the configuration of the charger 100 and the electronic device 200 of the magnetic resonance type that can be employed in the embodiments of the present invention.
4 is a perspective view exemplarily showing a charger for charging a plurality of electronic devices according to the first embodiment of the present invention.
5 is a perspective view of a charger having a folded structure for charging a plurality of electronic devices according to an aspect of a second embodiment of the present invention.
6 is a perspective view of a charger having a folding structure for charging a plurality of electronic devices according to another embodiment of the second embodiment of the present invention.
7 is a perspective view of a charger having a folding structure for charging a plurality of electronic devices according to another embodiment of the second embodiment of the present invention.
8 is a perspective view of a charger having a slide-type structure for charging a plurality of electronic devices according to a third embodiment of the present invention.
FIG. 9 is a block diagram showing a charger further including an additional configuration in addition to the configuration shown in FIGS. 2 to 3. FIG.
10 is a block diagram showing a configuration in a case where the electronic device 200 according to the embodiments of the present invention is a mobile communication terminal.
11 is a block diagram showing a configuration in a case where the electronic device 200 according to the embodiments of the present invention corresponds to a multimedia device such as a tablet.
12 is a flowchart showing a first example of the operation of the charger 100 according to the embodiments of the present invention.
13 is a flowchart illustrating in detail a process shown in FIG.
14 is a flowchart showing a second example of the operation of the charger 100 according to the embodiments of the present invention.
15 is a flowchart illustrating a first example of the operation of the electronic device 200 according to the embodiments of the present invention.
16 is a flowchart showing a second example of the operation of the electronic device 200 according to the embodiments of the present invention.
17 is a flowchart illustrating a third example of the operation of the electronic device 200 according to the embodiments of the present invention.

It is noted that the technical terms used herein are used only to describe specific embodiments and are not intended to limit the invention. It is also to be understood that the technical terms used herein are to be interpreted in a sense generally understood by a person skilled in the art to which the present invention belongs, Should not be construed to mean, or be interpreted in an excessively reduced sense. Further, when a technical term used herein is an erroneous technical term that does not accurately express the spirit of the present invention, it should be understood that technical terms that can be understood by a person skilled in the art are replaced. In addition, the general terms used in the present invention should be interpreted according to a predefined or prior context, and should not be construed as being excessively reduced.

Also, the singular forms "as used herein include plural referents unless the context clearly dictates otherwise. In the present application, the term "comprising" or "comprising" or the like should not be construed as necessarily including the various elements or steps described in the specification, Or may be further comprised of additional components or steps.

Furthermore, suffixes "module" and " part "for components used in the present specification are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The electronic device described in this specification can be applied to any portable electronic device such as a mobile phone, a cellular phone, a smart phone, a PDA (Personal Digital Assistants), a portable multimedia player (PMP), a tablet, And should be interpreted in its entirety.

However, it will be apparent to those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the terminal is applicable only to a terminal.

Furthermore, terms including ordinals such as first, second, etc. used in this specification can be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or similar elements throughout the several views, and redundant description thereof will be omitted.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. It is to be noted that the accompanying drawings are only for the purpose of facilitating understanding of the present invention, and should not be construed as limiting the scope of the present invention with reference to the accompanying drawings.

1 is an exemplary diagram conceptually showing a wireless charger and an electronic device according to embodiments of the present invention.

1, the electronic device 200 is a device capable of wireless charging, and can receive the wireless power from the charger 100 to charge the battery.

The charger 100 may use at least one of an electromagnetic induction method using an electromagnetic induction phenomenon and a magnetic resonance method of sending power at a specific frequency.

Wireless charging by induction method is a technology to transmit power wirelessly using primary and secondary coils. It uses wireless induction principle that induces current through one magnetic field from one coil to another. It says.

Charging by the magnetic resonance method matches the resonance frequency of the charger with the resonance frequency of the electronic device, so that energy can be transferred from the charger to the electronic device.

Meanwhile, the electronic device 200 and the charger 100 may be separated by a predetermined distance d. As described above, since the charger 100 and the electronic device 200 are not in contact with each other and can be separated from each other by a predetermined distance d, different electronic devices can be charged at the same time.

Hereinafter, the configuration of the charger and the electronic device in the case of using the electromagnetic induction method will be described.

2 is a block diagram exemplarily showing the configuration of the electronic induction type charger 100 and the electronic device 200 that can be employed in the embodiments of the present invention.

Referring to FIG. 2 (a), the charger 100 can charge the battery of the electronic device 200 using an induction current. The electronic device 200 may be a mobile communication terminal (e.g., a cellular phone, a cellular phone) or a multimedia device as described later. When the electronic device is a mobile terminal, a description will be given later with reference to FIG.

The charger 100 is a device for wirelessly charging a battery of the electronic device 200, and is a power transmitter for transmitting power required for charging the battery.

The charger 100 may include a charging circuit unit 110 of an electromagnetic induction type. The electromagnetic induction type charging circuit unit 110 includes a primary coil 111, a sensor 112, a switching unit 113, a comparison unit 114, a charge control unit 115, and an output unit 116.

The primary coil 111 generates an electromagnetic field when power is applied. The primary coil 111 may be implemented as a solenoid. The electromagnetic field generated in the primary coil 111 may induce a magnetic field in the secondary coil 2931 of the electronic device 200 to generate an induced current in the secondary coil 2931.

The sensor 112 senses the contact of the electronic device 200 when the electronic device 200 is placed on the charger 100 and confirms the position of the electronic device 200 on the charger 100.

In addition, the sensor 112 functions to help the charging efficiency of the electronic device 200 is maximized when the electronic device 200 is placed on the charger 100. When the electronic device 200 is placed on the charger 100, the center of the primary coil 111 and the center of the secondary coil 2931 are positioned on a straight line, so that the charging efficiency is the highest.

Therefore, in order for the center of the primary coil 111 of the charger 100 and the secondary coil 2931 of the electronic device 200 to be positioned on a straight line, a magnet is disposed at the center of the primary coil 111 When the center of the secondary coil 2931 comes within a predetermined radius with respect to the center of the primary coil 111, the electronic device is pulled by the magnetic force so that the center of the primary coil 111 and the secondary coil 2931 It can be positioned in a straight line.

If the distance between the center of the primary coil 111 and the secondary coil 2931 is out of the tolerance range D, the charger 100 recognizes that the electronic device 200 does not satisfy the alignment condition, It is possible to transmit a signal indicating that this is impossible to the electronic device 200.

That is, when the centers of the primary coil 111 and the secondary coil 2931 are overlapped, the distance between the center of the primary coil 111 and the secondary coil 2931 does not satisfy the alignment condition The electronic device 200 does not permit the wireless charging of the battery. At this time, the charger 100 can transmit the information about the direction and the distance of the center of the secondary coil 2931 of the electronic device 200 with respect to the center of the primary coil 111 to the electronic device 200 .

The switching unit 111 serves to supply or cut off external power supplied to the primary coil 111 under the control of the charge control unit 115.

The comparator 114 is used to check whether the charger 100 is operating normally or not. The comparator 114 detects a voltage or current of a power source supplied from the outside and checks whether the detected voltage or current exceeds a threshold value. The comparator 114 includes a resistor for detecting a voltage or current of a power source supplied from the outside, and a comparator for comparing a voltage value or a current value of the detected power source with a threshold value and outputting a result of the comparison.

For example, the comparison unit 114 determines whether the power supplied from the outside is greater than 5 V, and outputs the result of the check to the charge control unit 115. The charge control unit 115 controls the switching unit 113 to cut off the power applied to the secondary coil 2931 when the power applied from the outside exceeds 5V.

The charge control unit 115 controls the switching unit 113 according to the confirmation result received from the comparison unit 114. Also, the charge controller 115 communicates with the electronic device 200, and can confirm the state of charge of the battery through the communication. For example, the charge control unit 115 communicates with the electronic device 200 through short-range communication such as Bluetooth, so that the charge state of the battery 216 can be checked.

Also, the charger 100 can charge a plurality of electronic devices at the same time.

In other words, it is possible to charge two or more electronic devices on the charger 100, and the electronic devices may be of different types. For example, a mobile phone, a multimedia player, a PDA, and the like can be placed in the charger 100 at the same time and wirelessly charged.

The output unit 116 displays the charging state under the control of the charging control unit 115. The output unit 116 may be implemented by a light emitting device and / or an LCD.

Referring to FIG. 2B, the electronic device 200 includes a power supply unit 290. The power supply unit 290 includes a battery 291, a charging unit 292, and a wireless power receiving unit 293.

The power receiving unit 293 receives the induced current generated in the charger 100.

The wireless power receiving unit 293 includes a secondary coil 2931, a rectifier 2932, a converter 2933, and a communication control unit 2934.

The secondary coil 2931 generates an induced current according to a change in the electromagnetic field generated in the primary coil 111 of the charger 100. That is, the secondary coil 2931 receives an induced current generated in the primary coil 111 of the charger 100 to generate an induced current.

The rectifier 2932 is an AC-DC converter for converting an induction current received through the secondary coil 2931 into a DC power (DC voltage or DC power).

The converter 2933 converts the DC power output from the rectifier 2932 into a predetermined voltage. That is, the converter 2933 serves to convert the DC power source to an appropriate voltage for charging the battery. For example, when the direct current power output through the rectifier 2932 is 9V, the converter 2933 converts 9V to 5V.

The communication controller 2934 communicates with the charger 100. [ The communication control unit 2934 can request the charger 100 to authenticate whether the terminal is capable of charging. The communication control unit 2934 transmits identification information such as the device number of the battery to the charger 100 when the authentication request is made.

The charging unit 292 charges the battery 291 using the induction current received through the secondary coil 2931. In other words, the charging unit 292 supplies the induction current generated by the secondary coil 2931 to the battery 292 by the electromagnetic induction phenomenon generated in the charging pad. The charging unit 292 may include a charging circuit for controlling charging of the battery, and an overcurrent / overvoltage protection circuit for preventing overcurrent and overvoltage.

Hereinafter, the configuration of a charger and an electronic device according to a magnetic resonance method will be described with reference to FIG.

3 is a block diagram exemplarily showing the configuration of the charger 100 and the electronic device 200 of the magnetic resonance type that can be employed in the embodiments of the present invention.

First, the resonance will be briefly described as follows.

Resonance refers to a phenomenon in which the vibration system receives an external force having the same frequency as its natural frequency periodically, and the amplitude increases sharply. Resonance is a phenomenon that occurs in all vibrations, such as mechanical vibration and electrical vibration. In electrical resonance, it is also called resonance. Generally, when a force that can vibrate the vibration system is externally applied, if the natural frequency and the force externally applied are the same, the vibration becomes larger and the amplitude becomes larger.

In the same principle, when a plurality of vibrating bodies spaced within a certain distance oscillate at the same frequency, the plurality of vibrating bodies resonate with each other, and in this case, the resistance between the vibrating bodies decreases. In an electric circuit, a resonator can be made using a coil and a capacitor. A resonator is often used in the same sense as a resonator, but usually refers to electromagnetic waves or electric vibrations. In an electric circuit, a resonator may be used as a circuit for selecting a specific frequency in an electric wave received by an antenna.

Therefore, the electronic device 200 shown in FIG. 3 can charge the battery using the coupling of the plane wave radiation generated in the charger 100

3 (a), the charger 100 may include a charging circuit unit 120 of a magnetic resonance type. The charging circuit unit 120 of the magnetic resonance type includes a transmitting antenna 121, a sensor 122, a matching unit 123, an oscillator 124, and a charging control unit 125. In addition, the charger 100 may further include an output unit 126.

The transmission antenna 121 is tuned to resonate at the same frequency or near the same frequency as the reception antenna.

The sensor 122 may detect the presence or absence of active receivers in the vicinity of the near field generated by the transmitting antenna. By way of example, the sensor monitors the current affected by the presence or absence of active receivers in the vicinity of the near field generated by the transmitting antenna. This detection is monitored by the control unit for use in determining whether to enable the oscillator to transmit energy to communicate with the electronic device 200. [

The matching unit 123 derives the RF signal as determined by the oscillator and reduces the harmonic emissions to a level to prevent self-jamming of the devices coupled to the electronic device 200, and the impedance (e.g., , 50 ohms) to the transmitting antenna.

The oscillator 124 is configured to generate at a desired frequency and may be adjusted in response to the adjustment signal.

The control unit 125 adjusts the output power level to enable the oscillator during the transmission phase, adjust the frequency of the oscillator, and implement a communication protocol to interact with neighboring devices.

The output unit 126 displays the charge state under the control of the charge control unit. The output unit may be implemented by a light emitting device and / or an LCD.

Referring to FIG. 3 (b), the electronic device 200 includes a power supply unit 290. The power supply unit 290 includes a battery 291, a charging unit 292, and a wireless power receiving unit 293.

The wireless power receiving unit 293 includes a receiving antenna 2931 ', a rectifier 2932, a converter 2933, and a communication control unit 2934.

The receiving antenna 2931 'is tuned to resonate at the same frequency or near the same frequency as the transmitting antenna of the charger 100.

The rectifier 2932 rectifies the RF energy signal received at the receiving antenna 2931 'to non-AC power. The converter 2933 converts the rectified RF energy signal to an energy potential (e.g., voltage) compatible with the electronic device 200.

The communication controller 2934 communicates with the charger 100. [ The communication control unit 2934 can request the charger 100 to authenticate whether the terminal is capable of charging. The communication control unit 2934 transmits identification information such as the device number of the battery to the charger 100 when the authentication request is made.

The charging unit 292 charges the battery 291 using the RF energy signal received through the receiving antenna 2931 '. In other words, the charger 292 converts the RF energy signal transmitted from the charger 100 into a usable form in the electronic device 200, and supplies the RF energy signal to the battery 291. The charging unit 292 may further include a charging circuit for controlling charging of the battery, an overcurrent / overvoltage protection circuit for preventing overcurrent and overvoltage.

Hereinafter, the external structure of the charger will be described with reference to FIG.

4 is a perspective view exemplarily showing a charger for charging a plurality of electronic devices according to the first embodiment of the present invention.

As can be seen from FIG. 4 (a), the charger 100 for charging a plurality of electronic devices may be in the form of a pad.

As shown in the figure, the pad-type charger may have a body upper surface. The body of the lower part of the vibration reducing part is placed on the electronic device 200. As described above, the electromagnetic induction type charging circuit portion 110 or the magnetic resonance type charging circuit portion 120 is accommodated in the body of the lower portion to protect the impact or foreign matter from contact with the outside can do.

The upper surface of the body of the lower part may be made of an insulating material, for example, plastic, in order to prevent electricity from being electrically conducted to the electronic apparatus. Or an insulating material may be coated.

A guide member may be provided on the lower portion so as not to be detached from the upper surface when the electronic apparatus is placed. The guide member may be provided along an upper surface of the charger, or a plurality of the guide members may be formed on a part of an upper surface of the charger.

A display portion 130 may be mounted on a high portion of the shortened portion. At this time, the stepped portion may be inclined so that the front surface of the display unit 130 is not horizontal with the ground. In other words, when the front surface of the display unit 130 is installed to be flush with the ground, the user's visibility may be a problem, so that the display unit 130 is preferably installed with a slope. To this end, the upper part of the merely part may be formed to be inclined to the lower part direction.

In addition, a plurality of holes may be formed on the upper surface of the pad type charger, and an audio output unit 140 may be mounted on the inner side of the plurality of holes, so that sound generated from the audio output unit 140 may be transmitted to the plurality of holes Lt; / RTI >

Alternatively, the plurality of holes may be formed on the side surface of the pad-shaped charger, and the audio output unit 140 may be mounted inside the plurality of holes formed on the side surface.

In addition, the above-described output unit 116 or 126 may be mounted on the upper surface of the pad-type charger. The output unit 116 may be a light emitting device as described above, and may be turned on or off depending on the state of charge. Depending on the state of charge, a different color of light can be produced.

Also, although not shown, a plurality of holes for exchanging heat may be formed on the side surface of the pad-shaped charger. Also, the plurality of holes may be formed on the upper surface of the pad. Also, although not shown, a supporting member for providing a frictional force with the ground and not slipping easily from the ground surface may be provided on the pad-shaped bottom surface of the charger. The support member may be made of a rubber material.

4 (b), the pad-type charger 100 has a width wider than the sum of the widths of two or more electronic devices so that at least two electronic devices can be charged at the same time .

FIG. 5 is a perspective view of a charger having a folding structure for charging a plurality of electronic apparatuses according to an embodiment of the second embodiment of the present invention, and FIG. 6 is a perspective view of a plurality of electronic apparatuses according to another embodiment of the second embodiment of the present invention Of a charger having a contact-type structure for charging the battery.

As can be seen with reference to Figures 5 and 6, the charger may be in the form of a fold.

5 (a), the main body of the charger can be covered by the hinged cover-type body 160. 5, a hinge fastening structure is formed on the side surfaces of the main body and the lid body 160 so that the lid body 160 is opened or closed like a book.

The upper surface of the main body of the charger 100 may be formed in a stepped manner.

Inside the main body, the electromagnetic induction type charging circuit unit 110 or the magnetic resonance type charging circuit unit 120 can be accommodated.

The upper surface of the cover body 160 may be made of an insulating material, for example, plastic, to prevent electricity from being electrically conducted to the electronic device. Or an insulating material may be coated.

A guide member may be installed on the upper surface of the cover body 160 so that the electronic device 200 does not slip off the upper surface when the electronic device 200 is placed. The guide member may be installed along an upper surface of the charger, or a plurality of the guide members may be installed on a part of an upper surface of the charger.

The cover body 160 may additionally include the electromagnetic induction type charging circuit unit 110 or the magnetic resonance type charging circuit unit 120 separately from the main body. At this time, the main body and the cover body 160 may receive the same type of charging circuit units or may accommodate different types of charging circuit units.

When the main body is covered by the cover body 160, the charging circuit unit 110 or 120 housed in the main body can be controlled not to operate. To this end, a sensor for sensing the cover and opening or a switch for on / off by covering / opening can be mounted on the inside of the cover body or on the top surface of the main body.

Meanwhile, as shown in FIG. 5 (b), when the cover body 160 is unfolded, the cover body 160 may be aligned with the main body of the charger. The cover body 160 may be formed on the inner surface of the cover body 160 such that the electronic device 200 can be lifted up. A guide member may be provided on the inner surface of the cover body 160 so as not to slide on the upper surface when the electronic device 200 is placed

When the cover body 160 is unfolded, the charging circuit unit 110 or 120 housed in the main body is operated by the above-described sensor or switch. When the charging circuit unit 110 or 120 housed in the main body operates, the sensor 112 or 122 in the charging circuit unit 110 or 120 places the electronic device 200 on the main body of the charger 100 . When the electronic device 200 is detected to be lifted up, the charging circuit unit 110 or 120 housed in the main body starts charging.

6 (a) and 6 (b), a hinge fastening structure may be formed at the lower end of the main body and the lid body 160. As shown in FIG. This is a structure for spatially increasing efficiency on a narrow table. That is, even if the lid body 160 is opened, the lid body 160 is lengthened only in the longitudinal direction, so that space efficiency can be increased even on a narrow table.

7 is a perspective view of a charger having a folding structure for charging a plurality of electronic devices according to another embodiment of the second embodiment of the present invention.

7, a plurality of lid-type bodies 161 and 162 can be hinged to the main body of the charger 100. As shown in FIG. Each of the cover bodies 161 and 162 may additionally accommodate the electromagnetic induction type charging circuit unit 110 or the magnetic resonance type charging circuit unit 120 as described above. By providing a plurality of lid-type bodies in this manner, the number of simultaneously chargeable electronic devices can be increased.

8 is a perspective view of a charger having a slide-type structure for charging a plurality of electronic devices according to a third embodiment of the present invention.

As shown in Fig. 8 (a), the charger 100 for charging a plurality of electronic devices may be in the form of a slide.

The extension body 170 is slidably received on one side of the main body of the charger. The extension body 170 slides due to the force or elastic force of the user and can protrude outward as shown in FIG. 8 (b). Although not shown, a hook is formed at one end of the extension body 170 to prevent the extension body from being completely separated from the main body and separated from the main body even if the extension body is pulled by an excessive force.

The upper surface of the main body of the charger 100 may be formed in an end portion.

The interior of the main body and the extension body may receive the electromagnetic induction type charging circuit unit 110 or the magnetic resonance type charging circuit unit 120.

In addition, the main body and the upper surface of the extension body 170 may be made of an insulating material, for example, plastic, to prevent electrical conduction between the main body and the extension body 170 to prevent electrical short-circuiting. Or an insulating material may be coated.

A guide member may be provided on the upper surface of the main body and the extension body 170 to prevent the electronic device 200 from slipping off the upper surface when the electronic device 200 is placed. The guide member may be installed along an upper surface of the charger, or a plurality of the guide members may be installed on a part of an upper surface of the charger.

FIG. 9 is a block diagram showing a charger further including an additional configuration in addition to the configuration shown in FIGS. 2 to 3. FIG.

9, the charger 100 includes a controller 120, a display unit (not shown), a display unit (not shown) 130, an audio output unit 140, and a communication unit 150.

The controller 120 controls the charging circuit unit 110 or 120, the display unit 130, the audio output unit 140, and the communication unit 150.

The display unit 130 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, and a 3D display.

The communication unit 150 may communicate with the electronic device 200 through an electronic communication device such as a Bluetooth TM, Components.

Meanwhile, although not shown, the charger 100 may further include a microphone.

The charger 100 may establish data communication with the electronic device 200 using the communication unit 150. [ The charging device 100 receives the audio signal from the electronic device 200 during the charging of the electronic device 200 through the established data communication and performs signal processing on the audio signal, 140). Also, through the data communication established, the charger 100 may receive information from the electronic device 200, process the information, and display the information on the display unit 130. Alternatively, the charger 100 may process the audio signal input through the microphone and transmit the processed audio signal to the electronic device 200 through the established data communication. In addition, when the charger 100 is charging a plurality of electronic devices, the charger 100 transmits identification information (e.g., a phone number in the case of a mobile phone, or the like) of the electronic device 200 through the established data communication Device name). The charger 100 outputs the identification information to the display unit 130 or the audio output unit 140 when the request is received from a specific one of the plurality of electronic apparatuses It is possible to output it through voice. The operation of the charger 100 will be described in detail with reference to FIGS. 12 to 14. FIG. Hereinafter, the configuration in the case where the electronic device 200 is a mobile communication terminal will be described.

10 is a block diagram showing a configuration in a case where the electronic device 200 according to the embodiments of the present invention is a mobile communication terminal.

The mobile communication terminal 200 includes the power supply unit 290 shown in FIG. 2 or FIG.

The terminal 200 includes a wireless communication unit 210, an audio / video input unit 220, a user input unit 230, a sensing unit 240, an output unit 250, a memory 260, An interface unit 270, and a control unit 280. The components shown in FIG. 10 are not essential, and a terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 210 may include one or more modules that enable wireless communication between the terminal 200 and the wireless communication system or between the terminal 200 and the network in which the terminal 200 is located. For example, the wireless communication unit 210 may include a broadcast receiving module 211, a mobile communication module 212, a wireless Internet module 213, a short distance communication module 214, and a location information module 215 .

The broadcast receiving module 211 receives broadcast signals and / or broadcast-related information from an external broadcast center through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast center may be a server for generating and transmitting broadcast signals and / or broadcast-related information, or a server for receiving broadcast signals and / or broadcast-related information generated by the broadcast center and transmitting the generated broadcast signals and / or broadcast- related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 212.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 211 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only (DVF-H) And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 211 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 211 may be stored in the memory 260.

The mobile communication module 212 transmits and receives a radio signal to at least one of a base station, an external terminal, and a server on a mobile communication network. 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 213 is a module for wireless Internet access, and may be built in or externally attached to the terminal 200. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short range communication module 214 is a module for short range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, etc. can be used as a short range communication technology. Meanwhile, USB (Universal Serial Bus), IEEE 1394, Intel Thunderbolt, or the like can be used as a wired LAN.

The short range communication module 214 may establish a data communication connection with the charger 100.

If there is an audio signal to be output during the wireless charging, the short-range communication module 214 may transmit the audio signal to the charger 100 through the short-range communication module through the established data communication. In addition, through the established data communication, the short-range communication module 214 may transmit the information to the charger 100 if there is information to be displayed. Alternatively, through the established data communication, the short-range communication module 214 may receive an audio signal input through a microphone built in the charger 100. [ The short-range communication module 214 may transmit the identification information (e.g., a telephone number or a device name in the case of a mobile phone) of the mobile communication terminal 200 to the charger 100 through the established data communication.

The location information module 215 is a module for acquiring the location of the terminal, and a representative example thereof is a Global Position System (GPS) module.

Referring to FIG. 10, an A / V (Audio / Video) input unit 220 is for inputting an audio signal or a video signal, and may include a camera 221 and a microphone 222. The camera 221 processes an image frame such as a still image or a moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 251. [

The image frame processed by the camera 221 may be stored in the memory 260 or may be transmitted to the outside via the wireless communication unit 210. [ At least two cameras 221 may be provided depending on the use environment.

The microphone 222 receives an external sound signal by a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data may be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 212 when the voice data is in the call mode, and output. Various noise elimination algorithms may be implemented in the microphone 222 to remove noise generated in receiving an external sound signal.

The user input unit 230 generates input data for a user to control the operation of the terminal. The user input unit 230 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 240 senses the current state of the terminal 200 such as the open / close state of the terminal 200, the position of the terminal 200, the presence of the user, the orientation of the terminal, And generates a sensing signal for controlling the operation of the sensor. For example, when the terminal 200 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether power is supplied to the power supply unit 290, whether the interface unit 270 is coupled to an external device, and the like. Meanwhile, the sensing unit 240 may include a proximity sensor 241.

The output unit 250 includes a display unit 251, an audio output module 252, an alarm unit 253, a haptic module 254, and the like, for generating output related to visual, auditory, .

The display unit 251 displays (outputs) information processed by the terminal 200. [ For example, when the terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the terminal 200 is in the video communication mode or the photographing mode, the photographed and / or received image, UI, or GUI is displayed.

The display unit 251 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) display, and a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 251 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 251 of the terminal body.

There may be two or more display units 251 according to the embodiment of the terminal 200. For example, in the terminal 200, a plurality of display units may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

(Hereinafter, referred to as a 'touch screen') in which a display unit 251 and a sensor (hereinafter, referred to as a 'touch sensor') for sensing a touch operation form a mutual layer structure, It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display portion 251 or a capacitance generated in a specific portion of the display portion 251 to an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If 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 control unit 280. Thus, the control unit 280 can know which area of the display unit 251 is touched or the like.

Referring again to FIG. 10, a proximity sensor 241 may be disposed in the inner region of the terminal or in the vicinity of the touch screen, which is surrounded by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor 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. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor detects 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, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio output module 252 can output audio data received from the wireless communication unit 210 or stored in the memory 260 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 252 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the terminal 200. [ The sound output module 252 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 253 outputs a signal for notifying the terminal 200 of an event occurrence. Examples of events that occur in the terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 253 may output a signal for informing occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 251 or the audio output module 252 so that they may be classified as a part of the alarm unit 253. [

The haptic module 254 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 254 is vibration. The intensity and pattern of the vibration generated by the hit module 254 and the like are controllable. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 254 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, contact with an electrode, 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 254 can be implemented not only to transmit the tactile effect through direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. The haptic module 254 may include two or more haptic modules according to the configuration of the terminal 200.

The memory 260 may store a program for the operation of the control unit 280 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 260 may store data on vibration and sound of various patterns output when a touch is input on the touch screen.

In addition, the memory 260 may store a wireless charging application downloaded from an application providing server (e.g., an application store). The wireless charging application is a program for controlling the wireless charging of the battery, and can selectively set a receiving notification mode upon wireless charging or when wireless charging is completed through the program. Herein, the called notification mode is a method of outputting a notification signal so that the user can recognize when receiving a text message or an incoming call, and includes a ring mode, a vibration mode (silent mode), and a silent mode.

The memory 260 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (e.g., SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The terminal 200 may operate in association with a web storage that performs a storage function of the memory 260 on the Internet.

The interface unit 270 serves as a path for communication with all external devices connected to the terminal 200. The interface unit 270 receives data from an external device or supplies power to each component in the terminal 200 or transmits data in the terminal 200 to an external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 270.

The identification module is a chip for storing various information for authenticating the usage right of the terminal 200 and includes a user identification module (UIM), a subscriber identity module (SIM), a universal user authentication module A 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 200 through the port.

When the terminal 200 is connected to an external cradle, the interface unit may be a path through which the power from the cradle is supplied to the terminal 200, or various command signals input from the cradle by the user are transmitted to the terminal . The various command signals input from the cradle or the power source may be operated as a signal for recognizing that the terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the terminal. For example, voice communication, data communication, video communication, and the like. The control unit 280 may include a multimedia module 281 for multimedia playback. The multimedia module 281 may be implemented in the control unit 280 or may be implemented separately from the control unit 280.

The control unit 280 may perform pattern recognition processing to recognize handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The control unit 280 performs wired charging or wireless charging according to a user input or an internal input. Herein, the internal input is a signal indicating that the induced current generated in the secondary coil in the terminal is detected.

The operation of the control unit 280 to control each component when the above-described wireless charging is performed will be described in detail with reference to FIG. 15 to FIG.

The power supply unit 290 receives external power and internal power under the control of the controller 280 and supplies power required for operation of the respective components.

The power supply unit 290 includes a battery 291 for supplying power to each component of the terminal 200 and may include a charging unit for charging the battery 216 by wire or wirelessly.

11 is a block diagram showing a configuration in a case where the electronic device 200 according to the embodiments of the present invention corresponds to a multimedia device such as a tablet.

The multimedia device 200 'includes a power supply unit 290 shown in FIG. 2 or FIG.

The multimedia device 200 'may include a controller 281. In addition, the multimedia device 200 'may further include at least one of a display unit 251 and an audio output unit 252,

The multimedia device 200 'may further include a data communication unit. The details of the display unit 251 and the sound output unit 252 will be applied to the contents of FIG.

The controller 281 controls the display unit 251 and the sound output unit 252 to reproduce contents. For example, the controller 281 outputs an image corresponding to the reproduction of the content to the display unit 251, and outputs the sound corresponding to the reproduction of the content through the sound output unit 252.

The data communication unit is a module for short-range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, etc. can be used as a short range communication technology. Meanwhile, USB (Universal Serial Bus), IEEE 1394, Intel Thunderbolt, or the like can be used as a wired LAN.

The data communication unit may establish a data communication connection with the charger 100.

Through the established data communication, the data communication unit can transmit the audio signal to the charger 100 when there is an audio signal to be output during wireless charging. In addition, through the established data communication, the short-range communication module 214 may transmit the information to the charger 100 if there is information to be displayed. Alternatively, through the established data communication, the short-range communication module 214 may receive an audio signal input through a microphone built in the charger 100. [ Also, the short-range communication module 214 may transmit the identification information (e.g., the device name) of the multimedia device 200 'to the charger 100 through the established data communication.

The configuration of the multimedia device 200 'has been briefly described above. Hereinafter, the operation of the charger 100 and the electronic device 200 will be described.

12 is a flowchart showing a first example of the operation of the charger 200 according to the embodiments of the present invention. 13 is a flowchart illustrating in detail a process shown in FIG.

As can be seen from FIG. 12, according to the first example, when the charger 100 charges a plurality of electronic devices 200, it is possible to distinguish among the notification signals generated in the plurality of electronic devices . Specifically, it is as follows.

When the charger 100 starts wireless charging (S100), the charger 100 can establish data communication with the electronic device 200 through the data communication unit described above (S112). The initiation of the wireless charging may be that the sensor of the charger detects that the electronic device 200 is placed on the body of the charger as described above. Alternatively, the start of the wireless charging may be that the charger 100 operates the first coil 111 or the transmission antenna 121 is started.

Subsequently, the charger 100 changes the notification function of the electronic device 200 to the sound generating mode (S113). At this time, the charger 100 can transmit a change request signal to the sound generating mode to the electronic device 200 through the established data communication.

After changing to the sound generating mode, it is determined whether there are a plurality of electronic devices to be charged (S114). The determination of whether there is a plurality of the plurality may be performed simultaneously with the step S111 or may be performed after the step S111.

If there are a plurality of electronic appliances to be charged, it is determined whether the sounds of the electronic appliances are identical (S115). For example, when the sound to be generated in each electronic device is a sound source, it is determined whether the sound sources are the same. Or if the sound to be generated in each electronic device is a specific signal sound, it is determined whether the sound signals are identical to each other. Alternatively, if the sound to be generated in each electronic device is negative, it is determined whether or not the sounds are identical to each other. The same determination may be made through metadata about the sound, such as a file name and a title. The same determination may be performed before step S114. For example, the same determination may be performed simultaneously with the step S111 or may be performed simultaneously with the step S112.

If the sounds of the respective electronic devices are equal to each other, the charger 100 starts an operation for distinguishing notifications of the electronic devices from each other (S116). The operation for distinguishing the above may be, for example, transmitting a sound change request to each electronic device. (For example, a device name or a telephone number) of each electronic device, and transmits the obtained identification information to the display unit 130 of the charger 100 or the audio output unit 130 of the charger 100, (140). ≪ / RTI > Such an example will be described in detail with reference to FIG.

As shown in FIG. 13 (a), when the sounds of the respective electronic devices are equal to each other, the charger 100 transmits data to the sounds that can be output from the respective electronic devices through the established data communication with the electronic device 1151 (S1161).

Then, the charger 100 can transmit an acoustic change request signal to each electronic device so that the sounds of the electronic devices are different from each other (S1162). At this time, when the information about the sounds is acquired, the sound that is not overlapped with each other may be selected based on the information, and the information may be included in the sound change request signal and transmitted to the selected sound. However, if information about the sounds is not obtained, the charger 100 can direct the electronic device 200 to change the sound at random by itself.

Alternatively, as shown in Fig. 13 (b), through the established data communication, the charger 100 acquires the identification information of each electronic device (S1167). Then, when an event requiring notification is generated in each electronic device (S1168), notification is performed using the identification information of the electronic device (S1169). Whether or not the event occurs can be confirmed according to a signal received from the electronic device. For example, when the electronic device 200 generates an event to be notified, the event can be transmitted to the charger 100 through the established data communication. More specifically, when the electronic device 200 is a mobile communication terminal, when a call is received to the mobile communication terminal, an event related to the incoming call of the telephone can be transmitted to the charger 100. Alternatively, when the electronic device 200 is a mobile communication terminal, when a message is received in the mobile communication terminal, the mobile communication terminal 100 may transmit an event for receiving the message to the charger 100. The execution of the notification (S1169) may be performed by displaying the identification information on the display unit of the charger or outputting the identification information by voice through the sound output unit.

14 is a flowchart showing a second example of the operation of the charger 200 according to the embodiments of the present invention.

As can be seen from FIG. 14, according to the second example, when the charger 100 wirelessly charges the electronic device 200 and there is sound to be output from the electronic device 200 , So that the charger 100 can output the sound.

First, when the charger 100 starts wireless charging (S121), a communication connection is established with the electronic device to be charged (S122). Thereafter, whether or not an event is received from the electronic device is monitored (S123). The event reception can be confirmed according to a signal received from the electronic device 200. For example, when the electronic device 200 generates an event to be notified, the event can be transmitted to the charger 100 through the established data communication. More specifically, when the electronic device 200 is a mobile communication terminal, when a call is received to the mobile communication terminal, an event related to the incoming call of the telephone can be transmitted to the charger 100. Alternatively, when the electronic device 200 is a mobile communication terminal, when a message is received in the mobile communication terminal, the mobile communication terminal 100 may transmit an event for receiving the message to the charger 100.

After receiving the event, the charger 100 can receive the sound of the electronic device and output it to the sound output unit when a predetermined time has elapsed even though there is an operation from the user or no operation from the user S124). At this time, if there is a microphone provided in the charger 100, an acoustic signal input through the microphone may be transmitted to the electronic device 200 (S125). Alternatively, data may be received from the electronic device 200 and displayed on the display unit of the charger (S126).

For example, in the event that the event is a telephone call, if the user does not operate or does not operate the charger to receive the telephone call, the charger 100 notifies the telephone To the mobile communication terminal. Then, the mobile communication terminal transmits the voice signal of the other party to the charger 100, and the charger 100 outputs the voice signal through the sound output unit. The charger 100 transmits a voice signal of a user input through the provided microphone to the mobile communication terminal so as to be conversational. That is, the charger 100 may operate as a speakerphone. At this time, if the voice of the user through the microphone is not inputted for a predetermined time, the charger 100 may transmit a call termination request to the mobile communication terminal. For example, let us say that the event is an incoming call. At this time, even if the user does not operate the charger 100 for a predetermined time, a predetermined time has passed and the charger 100 has transmitted a signal to the mobile communication terminal to receive the call, . In this situation, if the user's voice signal is not inputted through the microphone provided in the charger for a predetermined time, the charger 100 can transmit a call termination request to the mobile communication terminal.

Meanwhile, the mobile communication terminal 200 can play a sound source or a moving picture. Accordingly, the charger 100 can receive the voice or image output while reproducing the sound source or the moving picture, and output the received voice or image through the display unit or the sound output unit. When the telephone is received during the output, the output of the sound and the video may be stopped and the telephone call may be started.

In another example, when a message is received in the electronic device, for example, a mobile communication terminal, an event for receiving the message may be transmitted to the charger 100. After receiving the event, the charger 100 receives the message from the mobile communication terminal when a predetermined time has elapsed even though there is an operation from the user or there is no operation from the user, Number and the number (or name) of the other party to which the message is transmitted through the sound output unit. In addition, the number of the mobile communication terminal, the number of the other party, and the contents of the message may be displayed on the display unit of the charger 100.

15 is a flowchart illustrating a first example of the operation of the electronic device 200 according to the embodiments of the present invention.

The electronic device 200 confirms whether the notification mode is set to the vibration mode (the silent mode) (S212) when the wireless charging by the charger 100 is started (S211).

If the notification mode is set to the vibration mode, the electronic device 200 can change the set vibration mode to the ring mode or the silent mode (S213).

Before changing to the ring mode or the silent mode, the electronic device 200 may display the guidance message and receive an acknowledgment from the user. When the acknowledgment is received, the electronic device 200 may change to the ring mode or the silent mode.

16 is a flowchart showing a second example of the operation of the electronic device 200 according to the embodiments of the present invention.

Referring to FIG. 16, the electronic device 200 establishes communication with the charger 223 when wireless charging by the charger 100 is started (S221) (S223). When the event occurs, the electronic device 200 transmits at least one of the sound, data, and image to the charger 100 (S223), for example, if there is at least one of sound, data, . For example, the electronic device 200 may transmit an acoustic signal for the ringing tone and the call to the charger 100 when a call is received as described above. Alternatively, the electronic device 200 may forward the message to the electronic device 200 when the message is received, as described above. Alternatively, when reproducing the content, the electronic device 200 may transmit at least one of the sound and the image by reproduction of the content to the charger.

17 is a flowchart illustrating a third example of the operation of the electronic device 200 according to the embodiments of the present invention.

Referring to FIG. 17, the electronic device 200 searches for other terminals in the vicinity where communication is possible when the wireless charging by the charger 100 is started (S221) (S232). Other terminals in the vicinity of the communication can be connected to the electronic device 200 by short-distance communication, for example, Bluetooth, Zigbee, UWB, Wireless USB, Wireless LAN, NFC or the like.

Then, when an event requiring notification occurs (S233), the electronic device 200 can forward the notification to the other terminal (S234). The event requiring the notification may be a telephone call or a message reception. Alternatively, the event requiring the notification may be an alarm set by the user.

The method described above can be implemented in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the methods described so far can be applied to various types of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays microprocessors, microprocessors, and other electronic units for performing other functions. For example, the methods may be implemented in a computer system, such as a microprocessor, micro-controllers, microprocessors, microprocessors, Or may be implemented in the controller 120 of the multimedia device 200 or the methods may be implemented in the mobile terminal 200 or the controller 281 of the multimedia device 200 '.

According to a software implementation, embodiments such as the procedures and functions described herein may be implemented with separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory 260 and can be executed by the control unit 280. [

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, May be modified, modified, or improved.

Claims (18)

A method in an electronic device capable of wirelessly receiving power to charge a battery,
Using the power wirelessly received from the wireless charger to initiate charging of the battery;
Establishing data communication with the wireless charger;
And transmitting the one or more signals to the wireless charger through the established communication when at least one of an audio signal, a video signal, and a data signal to be output is generated while the battery is being charged,
Wherein the at least one signal is the data signal,
Transmitting the one or more signals to the wireless charger
Wherein the identification information of the electronic device and the identification information of the other party of the telephone or message are transmitted to the wireless charger when a call or message is received during the charging. The electronic device according to claim 1, wherein the electronic device
A wireless communication terminal, a mobile communication terminal, a multimedia device, and a tablet-type device. The method according to claim 1,
The audio signal to be output may include at least one of an audio signal according to the reproduction of the content, a notification sound signal for informing of the reception of the call or message, and a voice signal by the call,
The video signal to be output may include at least one of a video signal, a video signal, a video signal,
Wherein the data signal to be output includes at least one of information about a content being reproduced, identification information of the electronic device, identification information of a counterpart of a call or a message. The method according to claim 1,
When a plurality of electronic devices including the electronic device are charged
Wherein the identification information of the electronic device transmitted to the wireless charger and the identification information of the other party of the telephone or message are displayed on the display unit of the charger. The method according to claim 1,
The audio signal may be a notification sound,
When a plurality of electronic devices including the electronic device are charged
Wherein when a call or message is received during the charging, the wireless charger transmits a notification sound for informing reception of a telephone or message to the wireless charger through the established data communication. The method according to claim 1,
Stopping the transmission when at least one of an audio signal, a video signal, and a data signal to be output is generated while transmitting the at least one signal to the wireless charger;
And transmitting the at least one other signal to be output to the charger. The method according to claim 6,
The one or more signals for which the transmission is interrupted may be an audio signal according to sound source content reproduction,
And the at least one other signal to be output may be an audio signal according to a telephone call. The method of claim 1, further comprising: after starting charging of the battery,
Further comprising changing a mode for informing an incoming call or a message to a sound mode. 9. The method of claim 8,
Characterized in that the sound is a preset sound, a sound indicated by the charger, or a randomly selected sound. An electronic device capable of wirelessly receiving power to charge a battery,
A wireless charging circuit for receiving power from the wireless charger wirelessly to charge the battery;
A communication unit for establishing data communication with the wireless charger;
Wherein the charging circuit unit and the communication unit are connected to the wireless charger through the established communication when at least one of an audio signal, a video signal, and a data signal to be output is generated while charging the battery, And a controller for controlling the transmission to be performed. The electronic device according to claim 10, wherein the electronic device
A mobile communication terminal, a multimedia device, and a tablet-type device. A method in a charging device for wirelessly transmitting power for charging a battery,
Initiating a wireless power supply to the electronic device;
Establishing a data communication with the electronic device;
Transmitting and receiving at least one of an audio signal, a video signal, and a data signal through the established communication with the electronic device;
And outputting one or more received signals,
Wherein the at least one signal is the data signal,
In the step of outputting the one or more signals
Wherein the identification information of the electronic device and the identification information of the other party of the telephone or message are transmitted to the wireless charger when a call or message is received during the charging. 13. The method of claim 12, wherein in the transmitting and receiving step
And transmits a signal for requesting to change the notification mode of the electronic device to the sound generating mode. 14. The method of claim 13, wherein the change request signal
When there are a plurality of electronic devices whose charging is started,
And a request to make the notification sounds of the respective electronic devices different from each other. 13. The method of claim 12, wherein in the step of outputting the one or more signals
The audio signal may include at least one of an audio signal of a content to be played back in the electronic device, a notification sound signal to announce a call or a message,
The video signal may include at least one of a video signal of a content to be played back in the electronic device, a video signal for informing an incoming call or a message, and a video signal for a call,
Wherein the data signal may include at least one of information on a content being played back in the electronic device, identification information of the electronic device, identification information on a counterpart of a call or a message. 13. The method of claim 12,
Stopping the output when receiving at least one of another audio signal, video signal, and data signal while outputting the received one or more signals;
Further comprising the step of outputting the received one or more other signals. A charging device for wirelessly transmitting power for charging a battery, comprising:
An output unit for outputting audio or video;
A charging circuit unit for supplying wireless power to the electronic device;
A communication unit for establishing data communication with the electronic device;
And a control unit connected to the charging circuit unit, the communication unit, and the output unit to transmit and receive at least one of an audio signal, an image signal, and a data signal to / from the electronic device via the established communication, And a controller for outputting a signal through the output section,
Wherein the at least one signal is the data signal,
The controller
Wherein when the electronic device receives a call or a message during the charging, identification information of the electronic device and identification information of a counterpart of the telephone or message are received from the electronic device. 18. The system of claim 17, wherein the body of the wireless charger
A pad type structure, a foldable pad type structure, or a slide pad structure.

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