KR20120107391A - Method for wirelessly charging battery, wireless charger, and electronic device - Google Patents

Abstract

PURPOSE: A wireless charger and an electronic device which is wirelessly charged are provided to prevent confusion of a user by compartmentalizing announcement signals generating in a plurality of electronic devices. CONSTITUTION: The charge of a battery is started using electricity which is wirelessly received from a wireless charger(S221). A mode for informing a user the receipt of a call or a message is changed into an acoustic mode. The battery performs data communications with the wireless charger. One or more signals among an audio signal, an image signal, and a data signal are transferred to the wireless charger through the data communications when an error among the audio signal, the image signal, and the data signal is generated(S223). [Reference numerals] (AA) Start; (BB) Yes; (CC) End; (DD) Communication is preformed with a charger; (EE) One or more signals among an audio signal, an image signal, and a data signal to be output are transferred to the charger; (S221) Wireless charging is started?

Description

Wireless charging method, wireless charger, electronic device for wireless charging {Method for Wirelessly charging battery, Wireless charger, and electronic device}

The present invention relates to wireless charging technology.

As the portability of various electronic devices of the user is emphasized, battery efficiency is becoming more important. Therefore, various techniques for increasing the efficiency of the battery have been proposed.

While attempts have been made to make the battery more efficient, there has been no significant progress in charging the battery.

In particular, in order to charge each electronic device, a power adapter must be provided separately, which is very troublesome for the user.

Recently, various studies for wirelessly charging electronic devices have been conducted.

The wireless charging is a breakthrough energy transfer concept that can remove energy for charging and transfer energy electromagnetically.

Accordingly, an embodiment of the present invention is to propose a method for efficiently charging the electronic device wirelessly.

In addition, an embodiment of the present invention is to be able to distinguish between the notification signals generated from the plurality of electronic devices, when wirelessly charging a plurality of electronic devices.

In order to achieve the above object, according to an embodiment of the present invention, a method in an electronic device capable of wirelessly receiving power to charge a battery. The method includes using a power wirelessly received from a wireless charger to initiate charging of a battery; Establishing data communication with the wireless charger; When charging the battery, if one or more of an audio signal, a video signal, and a data signal to be output, may include transmitting the one or more signals to the wireless charger through the established communication.

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

The audio signal to be output may include at least one of an audio signal according to reproduction of content, a notification sound signal for notifying the reception of a call or a message, and a voice signal by a call. In addition, the video signal to be output may include one or more of a video signal according to the reproduction of the content, a video signal for notifying the incoming call or message, and a video signal by the call. The data signal to be output may include at least one of information on the content being played, identification information of the electronic device, and identification information of the other party of a call or a message.

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

The audio signal may be a notification sound. In this case, in the transmitting and receiving step

When a call or a message is received during the charging, the wireless charger may transmit a notification sound for notifying the reception of the call or the message through the established data communication.

The method may further include stopping the transmission when one or more of another audio signal, video signal, and data signal to be output occurs while transmitting the one or more signals to the wireless charger; The method may further include transmitting another one or more signals to be output to the charger.

The one or more signals from which the transmission is stopped may be an audio signal according to the reproduction of sound source content, and the other one or more signals to be output may be an audio signal according to a phone call.

The method may further include changing a mode for notifying the reception of a call or a message to an acoustic mode after initiating charging of the battery.

In the changing step, the sound may be a preset sound, a sound indicated by the charger, or a randomly selected sound.

On the other hand, in order to achieve the above object, according to an embodiment of the present invention, an electronic device capable of wirelessly receiving power and charging a battery is provided. The electronic device may include a wireless charging circuit unit that wirelessly receives power from a wireless charger to charge a battery; A communication unit for establishing data communication with the wireless charger; When one or more of an audio signal, a video signal, and a data signal to be output are generated while the battery is being charged and connected to the charging circuit unit and the communication unit, the one or more signals are transmitted to the wireless charger through the established communication. It may include a controller that controls to transmit.

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

Meanwhile, in order to achieve the above object, according to an embodiment of the present invention, a method in a charging device for wirelessly transmitting power for charging a battery is provided. The method includes initiating wireless power supply to an electronic device; Establishing data communication with the electronic device; Transmitting and receiving one or more of an audio signal, a video signal, and a data signal with the electronic device through the established communication; 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 a sound generation mode may be transmitted.

The change request signal may include a request to make a notification sound of each electronic device different from each other when there are a plurality of electronic devices that have started charging.

In the transmitting / receiving step, the audio signal may include at least one of an audio signal of a content reproduced by the electronic device, a notification sound signal for notifying the reception of a call or a message, and a voice signal by a call. The video signal may include at least one of a video signal of a content reproduced by the electronic device, a video signal for notifying reception of a call or a message, and a video signal by a call. In addition, the data signal may include one or more of information on content being played in the electronic device, identification information of the electronic device, and identification information of the other party of a call or a message.

The method includes stopping the output when receiving one or more of another audio signal, a video signal, and a data signal while outputting the received one or more signals; The method may further include outputting the received one or more signals.

On the other hand, in order to achieve the above object, an embodiment of the present invention provides 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; One or more signals connected to the charging circuit unit, the communication unit, and the output unit to transmit / receive one or more of an audio signal, a video signal, and a data signal with the electronic device through the established communication after the charging is started. It may include a controller for outputting through the output unit.

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

One embodiment of the present invention allows for efficient wireless charging of multiple electronic devices.

In addition, an embodiment of the present invention, when wirelessly charging a plurality of electronic devices, can be distinguished between the notification signals generated from the plurality of electronic devices, thereby preventing user confusion.

1 is an exemplary view conceptually showing a wireless charger according to embodiments of the present invention.
2 is a block diagram exemplarily illustrating a configuration of the charger 100 and the electronic device 200 of an electromagnetic induction method that may be employed in embodiments of the present invention.
3 is a block diagram exemplarily illustrating a configuration of a charger 100 and an electronic device 200 of a magnetic resonance method that may be employed in embodiments of the present invention.
4 is a perspective view exemplarily illustrating a charger for charging a plurality of electronic devices according to a first embodiment of the present invention.
5 is a perspective view of a charger having a collapsible structure for charging a plurality of electronic devices according to an aspect of the second embodiment of the present invention.
6 is a perspective view of a charger having a collapsible 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 collapsible 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 illustrating a charger further including additional components in addition to the components illustrated in FIGS. 2 and 3.
10 is a block diagram showing a configuration when the electronic device 200 according to the embodiments of the present invention is a mobile communication terminal.
FIG. 11 is a block diagram illustrating a configuration when the electronic device 200 according to the embodiments of the present disclosure corresponds to a multimedia device such as a tablet.
12 is a flowchart illustrating an operation of a charger 100 according to embodiments of the present disclosure according to a first example.
FIG. 13 is a flowchart illustrating a process of FIG. 11 in detail.
14 is a flowchart illustrating an operation of a charger 100 according to embodiments of the present disclosure according to a second example.
15 is a flowchart illustrating an operation of the electronic device 200 according to embodiments of the present disclosure according to a first example.
16 is a flowchart illustrating an operation of the electronic device 200 according to the second embodiment of the present disclosure.
17 is a flowchart illustrating an operation of the electronic device 200 according to embodiments of the present disclosure according to a third example.

It is to be noted that the technical terms used herein are merely used to describe particular embodiments, and are not intended to limit the present 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. In addition, when the technical terms used herein are incorrect technical terms that do not accurately express the spirit of the present invention, they should be replaced with technical terms that can be understood correctly by those skilled in the art. 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.

In addition, the suffixes "module" and "unit" for the components used herein are given or mixed in consideration of ease of specification, and do not have distinct meanings or roles from each other.

The electronic devices described herein include all portable electronic devices such as mobile phones, cellular phones, smart phones, personal digital assistants (PDAs), portable multimedia players (PMPs), tablets, and multimedia devices. It should be interpreted in a comprehensive sense.

However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, and the like, except when applicable only to the terminals.

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 view conceptually illustrating a wireless charger and an electronic device according to embodiments of the present invention.

As can be seen with reference to FIG. 1, the electronic device 200 is a device capable of wireless charging, and may receive a wireless power from the charger 100 to charge a battery.

The charger 100 may use one or more of an electromagnetic induction method using an electromagnetic induction phenomenon and a magnetic resonance method that loads power at a specific frequency.

Inductive wireless charging is a technology that transmits power wirelessly using a primary coil and a secondary coil. Wireless charging using the principle of electromagnetic induction that induces a current through a magnetic field from one coil to another coil is used. Say.

Charging by the magnetic resonance method matches the resonant frequency of the charger with the resonant frequency in 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 such, since the charger 100 and the electronic device 200 may not be contacted and may be separated from each other by a predetermined distance d, the charger 100 and the electronic device 200 may be charged at the same time as in the prior art.

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

2 is a block diagram exemplarily illustrating a configuration of the charger 100 and the electronic device 200 of an electromagnetic induction method that may be employed in embodiments of the present invention.

First, referring to FIG. 2A, the charger 100 may charge a battery of the electronic device 200 using an induction current. The electronic device 200 may be a mobile communication terminal (eg, a mobile phone, a cellular phone) or a multimedia device as described below. When the electronic device is a mobile terminal, it will be described later with reference to FIG. 10.

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

The charger 100 may include a charging circuit unit 110 of an electromagnetic induction method. The electromagnetic induction charging circuit 110 includes a primary coil 111, a sensor 112, a switching unit 113, a comparator 114, a charging controller 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. In addition, the electromagnetic field generated by the primary coil 111 may induce a magnetic field in the secondary coil 2927 of the electronic device 200 to generate an induced current in the secondary coil 2927.

The sensor 112 detects contact of the electronic device 200 when the electronic device 200 is placed on the charger 100, and checks the position of the electronic device 200 on the charger 100.

In addition, the sensor 112 serves to help the electronic device 200 to be placed at the highest charging efficiency when the electronic device 200 is placed on the charger 100. When the electronic device 200 is placed on the charger 100, the charging efficiency is highest when the center of the primary coil 111 and the center of the secondary coil 2929 are located in a straight line.

Therefore, in order to center the primary coil 111 of the charger 100 and the secondary coil 2927 of the electronic device 200 in a straight line, a magnet is placed at the center of the primary coil 111. When the center of the secondary coil (2931) is within a predetermined radius with respect to the center of the primary coil (111), the electronic device is attracted by magnetic force so that the centers of the primary coil (111) and the secondary coil (2931) are installed. It can be located in a straight line.

Here, when the distance between the center of the primary coil 111 and the secondary coil 2927 is outside the tolerance range D, the charger 100 recognizes that the electronic device 200 does not satisfy the alignment condition and wirelessly charges it. A signal indicating that this is impossible may be transmitted to the electronic device 200.

That is, in the charger 100, when the centers of the primary coils 111 and the secondary coils 2931 overlap, the distance between the centers of the primary coils 111 and the secondary coils 2931 does not satisfy the alignment condition. If not, the wireless charging of the battery of the electronic device 200 is not allowed. In this case, the charger 100 may transmit information about a direction and a distance in which the center of the secondary coil 2927 of the electronic device 200 deviates from the center of the primary coil 111 to the electronic device 200. .

The switching unit 111 supplies or cuts off the power supplied from the outside to the primary coil 111 under the control of the charging control unit 115.

The comparison unit 114 checks whether the charger 100 operates normally, detects the voltage or current of the power supplied from the outside, and checks whether the detected voltage or current exceeds a threshold. The comparator 114 includes a comparator for comparing a resistance for detecting a voltage or a current of a power supplied from an external source and a threshold value with a voltage value or a current value of the detected power and outputting a comparison result.

For example, the comparison unit 114 checks whether the power applied from the outside exceeds 5V and outputs the confirmation result to the charging control unit 115. When the power applied from the outside exceeds 5V, the charging control unit 115 controls the switching unit 113 to cut off the power applied to the secondary coil 2927.

The charging control unit 115 controls the switching unit 113 according to the confirmation result received from the comparison unit 114. In addition, the charging control unit 115 may communicate with the electronic device 200 and check the charging state of the battery through the communication. For example, since the charging control unit 115 communicates with the electronic device 200 through short-range communication such as Bluetooth, the charging control unit 115 may check the charging state of the battery 216.

In addition, the charger 100 may simultaneously charge a plurality of electronic devices.

In other words, two or more electronic devices can be placed and charged on the charger 100, and the electronic devices may be different models. For example, a mobile phone, a multimedia player, a PDA, etc. may be simultaneously placed on the charger 100 to perform wireless charging.

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

Meanwhile, 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 receiver 293.

The power receiver 293 serves to receive the induced current generated from the charger 100.

The wireless power receiver 293 includes a secondary coil 2927, a rectifier 2932, a converter 2333, and a communication controller 2934.

The secondary coil 2927 generates an induced current according to a change in the electromagnetic field generated by the primary coil 111 of the charger 100. That is, the secondary coil 2927 receives the induced current generated from the primary coil 111 of the charger 100 to generate the induced current.

The rectifier 2932 is an AC-DC converter that converts an induced current received through the secondary coil 2927 to a DC power source (DC voltage or DC power source).

The converter 2333 converts the DC power output from the rectifier 2932 into a predetermined voltage. In other words, the converter 2927 serves to convert the DC power to an appropriate voltage for battery charging. For example, if the DC power output through the rectifier 2932 is 9V, the converter 2333 converts 9V to 5V.

The communication controller 2934 communicates with the charger 100. The communication controller 2934 may request authentication from the charger 100 whether the terminal is a device capable of charging. When the authentication request is made, the communication controller 2934 transmits identification information such as a device number of a battery to the charger 100.

The charging unit 292 charges the battery 291 using an induced current received through the secondary coil 2927. In other words, the charging unit 292 supplies the induced current generated by the secondary coil 2927 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 battery charging and an overcurrent / overvoltage protection circuit for preventing overcurrent and overvoltage.

Meanwhile, the configuration of the charger and the electronic device by the magnetic resonance method will be described below with reference to FIG. 3.

3 is a block diagram exemplarily illustrating a configuration of a charger 100 and an electronic device 200 of a magnetic resonance method that may be employed in embodiments of the present invention.

First, the resonance is briefly described as follows.

Resonance refers to a phenomenon in which the vibration system receives a periodic external force having the same frequency as its natural frequency and increases in amplitude. Resonance is a phenomenon that occurs in all vibrations, such as mechanical vibrations and electrical vibrations, of which resonance is also called resonance. In general, when the external vibration force is applied to the vibration system, if the natural frequency and the external vibration force are the same, the vibration becomes severe and the amplitude increases.

In the same principle, when a plurality of vibrating bodies separated within a certain distance vibrate at the same frequency with each other, the plurality of vibrating bodies resonate with each other, in which case the resistance between the plurality of vibrating bodies decreases. In electrical circuits, resonators can be made using coils and capacitors. Resonators are often used in the same sense as resonators, but usually for electromagnetic waves or electric vibration. In an electric circuit, a resonator may be used as a circuit for selecting a specific frequency in a radio wave received by an antenna.

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

Specifically, as can be seen with reference to Figure 3 (a), the charger 100 may include a charging circuit unit 120 of the magnetic resonance method. The magnetic resonance charging circuit unit 120 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 transmitting antenna 121 is tuned to resonate at or near the same frequency as the receiving antenna.

The sensor 122 may detect the presence or absence of active receivers in the vicinity of the near field generated by the transmit 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 induces an RF signal as determined by the oscillator, reduces harmonic emissions to a level for preventing self-jamming of devices coupled to the electronic device 200, and improves impedance (e.g., 50 ohms) to the transmit antenna.

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

The controller 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 for interacting with neighboring devices.

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

Meanwhile, referring to FIG. 3B, 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 receiver 293.

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

The receiving antenna 2927 'is tuned to resonate at 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 2927 'with non-alternating power. The converter 2333 converts the rectified RF energy signal into an energy potential (eg, a voltage) compatible with the electronic device 200.

The communication controller 2934 communicates with the charger 100. The communication controller 2934 may request authentication from the charger 100 whether the terminal is a device capable of charging. When the authentication request is made, the communication controller 2934 transmits identification information such as a device number of a battery to the charger 100.

The charging unit 292 charges the battery 291 using an RF energy signal received through the receiving antenna 2927 ′. In other words, the charger 292 converts an RF energy signal transmitted from the charger 100 into a form usable by the electronic device 200, and supplies the converted RF energy signal to the battery 291. The charging unit 292 may further include a charging circuit for controlling battery charging and an overcurrent / overvoltage protection circuit for preventing overcurrent and overvoltage.

On the other hand, the external structure of the charger will be described below with reference to FIG.

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

As can be seen with reference to FIG. 4A, the charger 100 for charging a plurality of electronic devices may have a pad form.

In addition, the pad-type charger may have a top surface of the body as shown in the figure. The lower part of the isolated part has the electronic device 200 placed thereon. As described above, the lower portion of the body accommodates the electromagnetic induction type charging circuit unit 110 or the magnetic resonance type charging circuit unit 120 to protect against external impact or foreign matter. can do.

The lower body upper surface may be made of an insulating material, such as plastic, in order to prevent electrical short with the electronic device. Or an insulating material may be coated.

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

The display unit 130 may be mounted at a higher portion of the short part. In this case, the stepped portion may have an inclination such that the front of the display unit 130 is not horizontal to the ground. In other words, when the front of the display unit 130 is installed to be horizontal to the ground, the visibility of the user may be a problem, it is preferable that the display unit 130 is installed to have an inclination. For this purpose, the higher part of the only part may be formed to be inclined in the lower part direction.

In addition, a plurality of holes may be formed on an upper surface of the pad-shaped charger, and an audio output unit 140 is mounted inside the plurality of holes, and the sound generated from the audio output unit 140 is transmitted to the plurality of holes. Can be output to the outside through.

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

In addition, the above-described output unit 116 or 126 may be mounted on an upper surface of the pad charger. The output unit 116 may be a light emitting device as described above, and may be flashed or lit depending on the state of charge. Or depending on the state of charge can emit a different color of light.

In addition, although not shown, a plurality of holes for exchanging heat may be formed in the side of the pad-shaped charger. In addition, the plurality of holes may be formed on the upper surface of the pad form. In addition, although not shown, a support member may be installed on the bottom of the pad-type charger to provide frictional force with the ground so that the pad is not easily slipped from the ground. The support member may be made of a rubber material.

On the other hand, as shown in Figure 4 (b), the pad charger 100 has a wider width than the sum of the width of the two or more electronic devices, so as to charge at least two or more electronic devices at the same time Can be formed.

5 is a perspective view of a charger having a collapsible structure for charging a plurality of electronic devices according to an aspect of the second embodiment of the present invention, and FIG. 6 is a plurality of electronic devices according to another embodiment of the second embodiment of the present invention. Is a perspective view of a charger having a folding structure to charge it.

As can be seen with reference to FIGS. 5 and 6, the charger may be folded.

Specifically, as can be seen with reference to Figure 5 (a), the main body of the charger may be covered by a lid-shaped body 160 which is hinged. In FIG. 5, a hinge fastening structure is formed on side surfaces of the main body and the cover body 160, and the cover body 160 is opened or covered like a book.

In addition, an upper surface of the main body of the charger 100 may be formed to have a stage.

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

The top surface of the lid body 160 may be made of an insulating material, for example, plastic, to prevent electrical short with the electronic device to become short. Or an insulating material may be coated.

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

The lid body 160 may additionally accommodate the electromagnetic induction charging circuit 110 or the magnetic resonance charging circuit 120 separately from the main body. In this case, the main body and the lid-shaped body 160 may accommodate the charging circuit portion of the same method, or may accommodate the charging circuit portion of the different method.

When the main body is covered by the lid body 160, the charging circuit unit 110 or 120 accommodated in the main body may be controlled to be inoperative. To this end, an inner side of the lid-shaped body or an upper surface of the main body may be equipped with a sensor for detecting the covering and opening or a switch that is on / off by the covering / opening.

On the other hand, as shown in Figure 5 (b), when the cover type body 160 is unfolded, it may be parallel to the main body of the charger. The inner surface of the lid body 160 may be formed flat so that the electronic device 200 can be raised. In addition, a guide member may be installed on an inner surface of the lid body 160 so that the electronic device 200 does not slip away from the upper surface when the electronic device 200 is placed.

When the lid body 160 is unfolded, the charging circuit unit 110 or 120 accommodated in the main body is operated by the above-described sensor or switch. When the charging circuit unit 110 or 120 accommodated in the main body is operated, the sensor 112 or 122 in the charging circuit unit 110 or 120 is placed on the electronic device 200 on the main body of the charger 100. Will be detected. When the electronic device 200 is detected to be raised, the charging circuit unit 110 or 120 accommodated in the main body starts charging.

On the other hand, as can be seen with reference to Figure 6 (a) and 6 (b), a hinge fastening structure can be formed on the lower end of the main body and the cover body 160. This is a structure for spatially improving efficiency on a narrow table. That is, since the cover body 160 is opened in the longitudinal direction only, even if the cover body 160 is opened, the space efficiency can be increased even on a narrow table.

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

As can be seen with reference to FIG. 7, a plurality of lid-shaped bodies 161 and 162 may be hinged to the main body of the charger 100. As described above, each of the cover bodies 161 and 162 may additionally accommodate the electromagnetic induction charging circuit unit 110 or the magnetic resonance charging circuit unit 120. By providing a plurality of lid-like bodies in this way, the number of electronic devices that can be charged simultaneously 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. 8A, the charger 100 for charging a plurality of electronic devices may be in a slide form.

One side of the main body of the charger may be accommodated for the expansion body 170 that slides. The expansion body 170 may be slid by a user's force or elastic force to protrude outward as shown in FIG. 8 (b). Although not shown, one end of the extension body 170 is formed to prevent the extension body from being completely separated from the main body even when the extension body is pulled by the excessive force.

An upper surface of the main body of the charger 100 may be formed to have a stage.

The inside of the main body and the extension body may accommodate the charging circuit part 110 of the electromagnetic induction method or the charging circuit part 120 of the magnetic resonance method.

In addition, top surfaces of the main body and the extension body 170 may be made of an insulating material, for example, plastic, to prevent electrical short with the electronic device. Or an insulating material may be coated.

Guide members may be installed on upper surfaces of the main body and the extension body 170 so that the electronic device 200 does not slide off from the upper surface when the electronic device 200 is placed. The guide member may be installed along the upper edge of the charger, or a plurality of guide members may be installed on a portion of the upper edge of the charger.

FIG. 9 is a block diagram illustrating a charger further including additional components in addition to the components illustrated in FIGS. 2 and 3.

As can be seen with reference to FIG. 9, the charger 100 includes a controller 120 and a display unit in addition to the above-described electromagnetic induction type charging circuit unit 110 or the magnetic resonance type charging circuit unit 120. 130, the audio output unit 140 and the communication unit 150 may be further included.

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 include a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (LCD). It may include at least one of a flexible display, a 3D display.

The communication unit 150 is an electronic device for any one or more of BluetoothTM, Zigbee, Ultra Wide Band (UWB), Wireless USB, and Near Field Communication (NFC) for data communication with the electronic device 200. It may include parts.

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. In addition, through the established data communication, the charger 100 receives an audio signal from the electronic device 200 while charging the electronic device 200, processes the signal, and then processes the signal and outputs the audio output unit ( 140). In addition, through the established data communication, the charger 100 may receive and process information from the electronic device 200 and display the same on the display unit 130. Alternatively, through the established data communication, the charger 100 may process an audio signal input through the microphone and transmit the audio signal to the electronic device 200. In addition, when the charger 100 is charging a plurality of electronic devices, the charger 100 may identify identification information of the electronic device 200 (for example, a phone number in the case of a mobile phone) through the established data communication, or Device name). When receiving a request that a notification is required from a specific device among the plurality of electronic devices, the charger 100 outputs the identification information on the display unit 130 or outputs the audio output unit 140. Can be output through voice. The operation of the charger 100 will be described in detail with reference to FIGS. 12 to 14. In the following description, a 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 when the electronic device 200 according to the embodiments of the present invention is a mobile communication terminal.

The mobile communication terminal 200 includes a power supply unit 290 illustrated in FIG. 2 or 3.

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. Since the components shown in FIG. 10 are not essential, 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 a 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 refer to a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and transmits the same to a terminal. 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, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) 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 configured to be suitable for not only the above-described digital broadcast system but also other broadcast systems.

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. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

The short range communication module 214 is a module for short range communication. As a wireless short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used. On the other hand, a wired local area communication may be used, such as USB (Universal Serial Bus), IEEE 1394, Intel Thunderbolt.

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

Through the established data communication, when there is an audio signal to be output during wireless charging, the short range communication module 214 may transmit the audio signal to the charger 100 through the short range communication module. In addition, through the established data communication, when there is information to be displayed, the short range communication module 214 may transmit the information to the charger 100. 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. In addition, the short range communication module 214 may transmit identification information (eg, a phone number or 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 a location of a terminal, and a representative example thereof is a GPS (Global Position System) module.

Referring to FIG. 10, the A / V 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 video obtained by an image sensor in a video call mode or a 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 transmitted to the outside through 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 the 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 detects a current state of the terminal 200 such as an open / closed state of the terminal 200, a position of the terminal 200, presence or absence of a user contact, orientation of the terminal, acceleration / deceleration of the terminal, and the like. Generates a sensing signal for controlling the operation of. For example, when the terminal 200 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. Also, whether the power supply unit 290 is supplied with power or whether the interface unit 270 is coupled to an external device may be sensed. 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, the terminal displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the terminal 200 is in a video call mode or a photographing mode, the terminal 200 displays a photographed and / or received image, a UI, or a GUI.

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 configured as a light transmissive structure. 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 then transmits the corresponding data to the controller 280. Thus, the control unit 280 can know which area of the display unit 251 is touched or the like.

Referring back to FIG. 10, a proximity sensor 241 may be disposed in an inner region of the terminal surrounded by the touch screen or near 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 photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation 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 allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." 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 may also output a sound signal related to a function (for example, a call signal reception sound or a message reception sound) 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 generated in the terminal include call signal reception, message reception, key signal input, and touch input. 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 further include a pin array that vertically moves with respect to the contact skin surface, a jetting force or suction force of air through an injection or inlet, grazing to the skin surface, contact of an electrode, electrostatic force, and the like. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

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 (eg, an app store). The wireless charging application is a program for controlling the wireless charging of the battery, it is possible to selectively set the incoming notification mode when the wireless charging or wireless charging is completed through the program. Here, the incoming notification mode relates to a method of outputting a notification signal so that a user can recognize when receiving a text message or an incoming call, and includes a ringtone mode, a vibration mode (silent mode), a silent mode, and the like.

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 that stores various information for authenticating the use authority of the terminal 200, and includes a user identification module (UIM), a subscriber identification module (SIM), and a universal user authentication module (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 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 . Various command signals or power input from the cradle may be operated as signals 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.

When the above-described wireless charging is performed, an operation of controlling the components by the controller 280 will be described in detail with reference to FIGS. 15 to 17.

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 may include a battery 291 for supplying power to each component of the terminal 200, and may include a charging unit for wired or wireless charging of the battery 216.

FIG. 11 is a block diagram illustrating a configuration when the electronic device 200 according to the embodiments of the present disclosure corresponds to a multimedia device such as a tablet.

The multimedia apparatus 200 ′ includes the power supply unit 290 illustrated in FIG. 2 or 3.

The multimedia apparatus 200 ′ may include a controller 281. In addition, the multimedia apparatus 200 ′ may further include one or more of the display unit 251 and the sound output unit 252.

The multimedia apparatus 200 ′ may further include a data communication unit. Detailed descriptions of the display unit 251 and the sound output unit 252 will apply mutatis mutandis to FIG. 10.

The controller 281 controls the display unit 251 and the sound output unit 252 to play content. For example, the controller 281 outputs a screen according to the reproduction of the content to the display unit 251, and outputs a sound according to the reproduction of the content through the sound output unit 252.

The data communication unit refers to a module for short range communication. As a wireless short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used. On the other hand, a wired local area communication may be used, such as USB (Universal Serial Bus), IEEE 1394, Intel Thunderbolt.

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

Through the established data communication, when there is an audio signal to be output during wireless charging, the data communication unit may transmit the audio signal to the charger 100. In addition, through the established data communication, when there is information to be displayed, the short range communication module 214 may transmit the information to the charger 100. 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. In addition, the short-range communication module 214 may transmit identification information (eg, device name) of the multimedia apparatus 200 ′ to the charger 100 through the established data communication.

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

12 is a flowchart illustrating an operation of a charger 200 according to embodiments of the present disclosure according to a first example. FIG. 13 is a flowchart illustrating a process of FIG. 11 in detail.

As can be seen with reference to FIG. 12, according to a first example, when the charger 100 charges a plurality of electronic devices 200, the notification signals generated from the plurality of electronic devices may be distinguished from each other. To help. Specifically, it is as follows.

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

Subsequently, the charger 100 changes the notification function of the electronic device 200 to a sound generation mode (S113). In this case, the charger 100 may transmit a change request signal to the sound generation mode to the electronic device 200 through the established data communication.

After changing to the sound generation mode as described above, it is determined whether there are a plurality of electronic devices to be charged (S114). The determination of whether there is a plurality may be performed at the same time as the process S111, or may be performed after the process S111.

When there are a plurality of electronic devices to be charged, it is determined whether the sounds of each electronic device are the same (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. Alternatively, when the sound generated in each electronic device is a specific sound signal, it is determined whether the sound signals are the same. Or, if the sound to be generated in each electronic device is a voice, it is determined whether the voices are the same. The same determination may be made through metadata regarding the sound, for example, a file name and a title. The same determination may be performed before the S114 process. For example, the same determination may be performed simultaneously with step S111 or simultaneously with step S112.

When the sounds of each electronic device are the same, the charger 100 starts an operation for distinguishing the notifications of the electronic devices from each other (S116). The operation for distinguishing may be, for example, transmitting a sound change request to each electronic device. Alternatively, the operation for distinguishing may include obtaining identification information (for example, a device name or a phone number) of each electronic device, and using the obtained identification information on the display unit 130 or the audio output unit of the charger 100. The output may be through 140. This example will be described in detail with reference to FIG. 13.

As shown in FIG. 13A, when the sounds of each electronic device are the same, the charger 100 is connected to the sounds that can be output from each electronic device through established data communication with the electronic device 1151. Information may be obtained (S1161).

In addition, the charger 100 may transmit a sound change request signal to each electronic device so that the sounds of each electronic device are different from each other (S1162). In this case, when the information about the sounds is obtained, a sound that does not overlap each other may be selected based on the information, and the information may be included in the selected sound and transmitted in the sound change request signal. However, when the information about the sounds is not obtained, the charger 100 may instruct the electronic device 200 to change the sounds at random.

Alternatively, as shown in FIG. 13B, through the established data communication, the charger 100 obtains identification information of each electronic device (S1167). Subsequently, when an event requiring notification occurs in each electronic device (S1168), the notification is performed using identification information of the corresponding electronic device (S1169). Whether the event occurs may be determined according to a signal received from the electronic device. For example, when an event for performing notification in the electronic device 200 occurs, the event may 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 on the mobile communication terminal, an event regarding the incoming call of the phone may be transmitted to the charger 100. Alternatively, when the electronic device 200 is a mobile communication terminal, when a message is received by the mobile communication terminal, an event for receiving the message may be transmitted to the charger 100. The performing of the notification (S1169) may be to display the identification information on the display unit of the charger or output the identification information by voice through the sound output unit.

14 is a flowchart illustrating an operation of a charger 200 according to embodiments of the present disclosure according to a second example.

As can be seen with reference to FIG. 14, according to the second example, when there is a sound to be output from the electronic device 200 while the charger 100 is wirelessly charging the electronic device 200. , So that the charger 100 can output the sound instead.

First, when the charger 100 starts wireless charging (S121), it establishes a communication connection with the electronic device to be charged (S122). Thereafter, it is monitored whether an event is received from the electronic device (S123). The event reception may be confirmed according to a signal received from the electronic device 200. For example, when an event for performing notification in the electronic device 200 occurs, the event may 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 on the mobile communication terminal, an event regarding the incoming call of the phone may be transmitted to the charger 100. Alternatively, when the electronic device 200 is a mobile communication terminal, when a message is received by the mobile communication terminal, an event for receiving the message may be transmitted to the charger 100.

After receiving the event, the charger 100 may receive the sound of the electronic device and output the sound to the sound output unit when a predetermined time elapses even if there is an operation from a user or no operation from the user ( S124). In this case, when there is a microphone provided in the charger 100, the sound 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, when the event is called, the charger 100 signals to answer the call when a predetermined time elapses even if the user operates or does not operate the charger to answer the charger 100. Deliver 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. In addition, the charger 100 transmits a voice signal of a user input through the provided microphone to the mobile communication terminal, so that the conversation can be performed. That is, the charger 100 may operate like a speakerphone. In this case, when the voice of the user through the microphone is not input for a predetermined time, the charger 100 may transmit a call termination request to the mobile communication terminal. For example, let's say the event is an incoming call. At this time, even if a user does not operate the charger 100 for a predetermined time, a predetermined time has elapsed, and the charger 100 transmits a signal to the mobile communication terminal to answer the call, and thus the call is started. . In this situation, when the voice signal of the user is not input for a predetermined time through the microphone provided in the charger, the charger 100 may transmit a call termination request to the mobile communication terminal.

Meanwhile, the mobile communication terminal 200 may play a sound source or a video. Therefore, the charger 100 may receive the audio or video output while playing the sound source or video from the mobile communication terminal 200 and output the audio or video through the display unit or the audio output unit. When the phone is called while outputting as described above, output of the sound and video may be stopped and the call may be started.

In another example, when a message is received at 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 elapses even if there is an operation from a user or no operation from the user, and receives the message from the mobile communication terminal. The number and the number (or name) of the counterpart who transmitted the message may be output through the sound output unit by voice. In addition, the number of the mobile communication terminal, the number of the counterpart, and the content of the message may be displayed on the display unit of the charger 100.

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

When the wireless charging by the charger 100 is started (S211), the electronic device 200 checks whether the notification mode is set to the vibration mode (silent mode) (S212).

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

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

16 is a flowchart illustrating an operation of the electronic device 200 according to the second embodiment of the present disclosure.

Referring to FIG. 16, when the wireless charging by the charger 100 is started (S221), the electronic device 200 establishes communication with the charger 223 (S223). When the event occurs, for example, when there is at least one of sound, data, and image to be output, the electronic device 200 transmits one or more of the sound, data, and image to the charger 100 (S223). . For example, as described above, when the call is received, the electronic device 200 may transmit the sound signal for the ring tone and the call to the charger 100. Alternatively, when the message is received as described above, the electronic device 200 may deliver the message to the electronic device 200. Alternatively, when the electronic device 200 plays the content, the electronic device 200 may transmit one or more of the sound and the image generated by the content to the charger.

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

Referring to FIG. 17, when wireless charging by the charger 100 is initiated (S221), the electronic device 200 searches for other terminals in the vicinity of which communication is possible (S232). The other terminal around the communicable area may be connected to the electronic device 200 through short-range communication such as Bluetooth, Zigbee, UWB, Wireless USB, Wireless LAN, NFC, or the like.

Subsequently, when an event requiring notification occurs, the electronic device 200 may transmit the notification to the other terminal (S234). The event requiring notification may be a call reception or a message reception. Alternatively, the event requiring the notification may be an alarm set in the user.

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

According to the hardware implementation, the methods described so far are application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and processors ( It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. The method may be implemented in the controller 120 of 100, or the methods may be implemented by the controller 281 of the mobile terminal 200 or the multimedia apparatus 200 ′.

According to the software implementation, embodiments such as the procedures and functions described herein may be implemented as 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 may be stored in the memory 260 and executed by the controller 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 that can wirelessly receive power and charge a battery,
Initiating charging of the battery using power wirelessly received from the wireless charger;
Establishing data communication with the wireless charger;
Transmitting 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 occurs while charging the battery. Wireless charging method in electronic equipment. The method of claim 1, wherein the electronic device
A wireless charging method in an electronic device, which corresponds to any one of a mobile communication terminal, a multimedia device, and a tablet type device. The method of claim 1,
The audio signal to be output may include one or more of an audio signal according to the reproduction of content, a notification sound signal for notifying the reception of a call or a message, and a voice signal by a call.
The video signal to be output may include at least one of a video signal according to the reproduction of the content, a video signal for notifying the call or incoming of the message, a video signal by the call,
The data signal to be output may include one or more of information on the content being played, identification information of the electronic device, and identification information of the other party of a call or a message. The method of claim 1,
The data signal may be identification information,
In the transmitting and receiving step
When a call or a message is received during the charging, at least one of identification information of the electronic device and identification information of the other party of the call or message is transmitted to the wireless charger. Charging method. The method of claim 1,
The audio signal may be a notification sound,
In the transmitting and receiving step
And when a call or message is received during the charging, transmitting a notification sound for notifying reception of the call or message through the established data communication. The method of claim 1,
Stopping the transmission when one or more of another audio signal, video signal, and data signal to be output occurs while transmitting the one or more signals to the wireless charger;
And transmitting the one or more signals to be output to the charger. The method according to claim 6,
The one or more signals at which the transmission is stopped may be an audio signal according to reproduction of sound source content,
The at least one other signal to be output may be an audio signal according to a phone call. The method of claim 1, wherein after initiating charging of the battery,
And changing the mode for notifying the incoming call or the message to the acoustic mode. The method of claim 8, wherein in the changing step
And the sound is a preset sound, a sound indicated by the charger, or a randomly selected sound. An electronic device that can wirelessly receive power and charge a battery.
A wireless charging circuit unit which wirelessly receives power from a wireless charger to charge a battery;
A communication unit for establishing data communication with the wireless charger;
When one or more of an audio signal, a video signal, and a data signal to be output are generated while the battery is being charged and connected to the charging circuit unit and the communication unit, the one or more signals are transmitted to the wireless charger through the established communication. An electronic device comprising a controller for controlling to transmit. The method of claim 10, wherein the electronic device
Electronic device, characterized in that any one of a mobile terminal, a multimedia device, and a tablet type device. A method in a charging device for wirelessly transmitting power to charge a battery,
Initiating wireless power supply to the electronic device;
Establishing data communication with the electronic device;
Transmitting and receiving one or more of an audio signal, a video signal, and a data signal with the electronic device through the established communication;
And outputting one or more signals that are received. 13. The method of claim 12, wherein
And transmitting a signal for requesting to change the notification mode of the electronic device to a sound generation mode. The method of claim 13, wherein the change request signal is
When there are a plurality of electronic devices that have started charging,
And a request for the notification sound of each electronic device to be different from each other. 13. The method of claim 12, wherein
The audio signal may include one or more of an audio signal of content played in the electronic device, a notification sound signal for notifying the reception of a call or a message, and a voice signal by a call.
The video signal may include at least one of a video signal of a content reproduced by the electronic device, a video signal for notifying the reception of a call or a message, and a video signal by a call.
The data signal may include one or more of information on content being played on the electronic device, identification information of the electronic device, and identification information of a counterpart of a call or a message. The method of claim 12,
Stopping the output when receiving one or more of another audio signal, a video signal, and a data signal while outputting the received one or more signals;
And outputting the received one or more other signals. A charging device that wirelessly transmits power for charging a battery,
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;
One or more signals connected to the charging circuit unit, the communication unit, and the output unit to transmit / receive one or more of an audio signal, a video signal, and a data signal with the electronic device through the established communication after the charging is started. Wireless charger comprising a controller for outputting through the output unit. 18. The body of claim 17 wherein the body of the charger is
A charger, characterized in that formed in a pad form structure, a folding pad form structure, or a slide pad structure.

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