KR101748667B1 - Data synchronization for wireless charging system - Google Patents

Abstract

The present disclosure relates to a wireless power transmission device that enables data to be synchronized when a mobile terminal is present in an area where wireless power can be transmitted thereby allowing a user to wirelessly charge the mobile terminal and conveniently transmit necessary data, A data synchronization method of a transmission apparatus, and a mobile terminal. To this end, the wireless power transmission apparatus according to an embodiment of the present invention includes a power control unit and a data control unit. The power control unit determines whether a mobile terminal exists in an area capable of wirelessly transmitting power. The data control unit receives a first data list from the mobile terminal when it is determined that the mobile terminal exists, and compares the first data list with a pre-stored second data list to synchronize data with the mobile terminal .

Description

[0001] DATA [0002] SYNCHRONIZATION FOR WIRELESS CHARGING SYSTEM [0003]

The present disclosure relates to data synchronization in a wireless charging system, and more particularly, to a mobile terminal supporting wireless data synchronization, a wireless power transmission device, and a method for synchronizing data in such a device.

A terminal such as a personal computer, a notebook computer, or a mobile phone has various functions, for example, a multimedia device having a complex function such as photographing or photographing of a moving picture, reproduction of music or a moving picture file, (multimedia player).

A terminal can be divided into a mobile terminal and a stationary terminal depending on whether the terminal is movable. The terminal may be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the terminal.

These terminals generally use batteries for carrying. Battery charging methods can be classified into wired charging and wireless charging, among which wired charging is common. However, recently, interest in wireless charging technology is increasing. There are electromagnetic induction type using electromagnetic induction phenomenon and magnetic resonance type which sends electric power at the same frequency to the transmitting and receiving end.

The present disclosure relates to a wireless power transmission device that enables data to be synchronized when a mobile terminal is present in an area where wireless power can be transmitted thereby allowing a user to wirelessly charge the mobile terminal and conveniently transmit necessary data, A data synchronization method of a transmitting apparatus, and a mobile terminal.

According to an aspect of the present invention, there is provided a wireless power transmission apparatus including a power control unit and a data control unit. The power control unit determines whether a mobile terminal exists in an area capable of wirelessly transmitting power. The data control unit receives a first data list from the mobile terminal when it is determined that the mobile terminal exists, and compares the first data list with a pre-stored second data list to synchronize data with the mobile terminal .

In one embodiment, the data control unit receives a third data list from an external storage device, compares the third data list with the second data list, and performs data synchronization with the external storage device.

Also, in one embodiment, the data control unit may match or merge any one of the first data list and the second data list with another one, and transmit the first or the first matching data list to the mobile terminal do.

In one embodiment, the data control unit transmits a message reflecting the progress of the data synchronization to the mobile terminal.

In one embodiment, the wireless power transmission apparatus further includes an output unit for outputting an indicator reflecting the progress of the data synchronization.

In one embodiment, the indicator may be one of an indicator indicating that data synchronization is in progress, an indicator indicating completion of data synchronization, and an indicator indicating an error occurrence during data synchronization.

In one embodiment, the first data list may be a list of data stored in a predetermined area of the wireless power transmission apparatus.

In one embodiment, the power control unit wirelessly transmits power to the mobile terminal.

In one embodiment, the wireless power transmission apparatus further includes an output unit for outputting an indicator reflecting a state of wirelessly transmitting power to the mobile terminal.

In one embodiment, the data control unit may receive the first data list at a time when the power control unit wirelessly transmits power to the mobile station.

Also, in one embodiment, the data control unit continuously performs the data synchronization even if the mobile terminal moves outside the area where the mobile station can transmit power wirelessly.

According to another aspect of the present invention, there is provided a method for synchronizing data in a wireless power transmission apparatus, the method comprising: determining whether a mobile terminal exists in an area where a wireless power transmission apparatus can wirelessly transmit power first . And when it is determined that the mobile terminal exists, the wireless power transmission apparatus receives the first data list from the mobile terminal. The wireless power transmission device compares the first data list with a pre-stored second data list to perform data synchronization with the mobile terminal.

According to another aspect of the present invention, there is provided a mobile terminal including a power control unit and a data control unit. The power control unit determines whether the mobile terminal exists in an area capable of wirelessly receiving power from the wireless power transmission apparatus. Wherein the data control unit receives a first data list from the wireless power transmission apparatus when the mobile terminal is determined to exist, compares the first data list with a pre-stored second data list, And data synchronization.

In one embodiment, the mobile terminal further includes an output unit for outputting an indicator reflecting the progress of the data synchronization.

In one embodiment, the indicator may be one of an indicator indicating that data synchronization is in progress, an indicator indicating completion of data synchronization, and an indicator indicating an error occurrence during data synchronization.

In one embodiment, the data control unit receives the first data list at a time when the power control unit wirelessly receives power from the wireless power transmission apparatus.

Also, in one embodiment, the data control unit continuously performs the data synchronization even if the mobile terminal is out of an area where wireless power can be received.

According to the present specification, data synchronization between a wireless power transmission device and a mobile terminal is automatically performed when a user places the mobile terminal in the wireless chargeable area, thereby conveniently updating the desired content.

Further, according to the present specification, the wireless power transmission apparatus automatically performs data synchronization with the external storage device, so that the time cost for the user to perform data synchronization between the external storage device and the mobile terminal can be reduced.

Also, according to the present disclosure, once the user places the mobile terminal in the wireless chargeable area and once data synchronization starts, data synchronization continues as long as communication between the wireless power transmission device and the mobile terminal is possible, The convenience of data synchronization can be ensured without being restricted to the wireless chargeable area.

Thus, there is an advantage that the usability of the wireless power transmission apparatus is increased.

Figures 1A and 1B illustrate a wireless charging system in accordance with one embodiment of the present disclosure.
2A and 2B are block diagrams illustrating a receiver 210 and a transmitter 220 for performing wireless charging using an inductive scheme according to one embodiment of the present disclosure.
3A and 3B are block diagrams illustrating a receiver 210 and a transmitter 220 for performing wireless charging using a resonance scheme in accordance with another embodiment of the present disclosure.
4 is a block diagram illustrating a mobile terminal (or terminal) associated with one embodiment of the present disclosure.
5 is a block diagram of a wireless charging system for data synchronization in accordance with one embodiment of the present invention.
6 is a flowchart illustrating a data synchronization method in a wireless charging system according to an embodiment of the present invention.
7 is a flowchart illustrating a data synchronization method in a wireless charging system according to an embodiment of the present invention.
8A and 8B are diagrams for explaining a data synchronization process according to an embodiment of the present invention.
9A and 9B illustrate indicators that can be displayed in a wireless power transmission apparatus during data synchronization according to an embodiment of the present invention.
10A to 10D are views for explaining a message that can be displayed on a mobile terminal during data synchronization according to an embodiment of the present invention.
11A is a diagram for explaining a reference setting of data synchronization according to an embodiment of the present invention.
11B is a diagram for explaining the area setting of data synchronization according to an embodiment of the present invention.
12A to 12C are diagrams for explaining a data synchronization area according to an embodiment of the present invention.
13 is a flowchart illustrating a data synchronization process performed by a mobile terminal according to an embodiment of the present invention.

Hereinafter, a terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), navigation and the like.

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.

Wireless charging system

Figures 1A and 1B illustrate a wireless charging system in accordance with one embodiment of the present disclosure. FIG. 1A is a conceptual diagram of a wireless charging system, and FIG. 1B is a block diagram of a wireless charging system.

Referring to FIG. 1A, a wireless charging system may include a receiver 210 (or a wireless power receiving device) and a transmitter 220 (or a wireless power transmitting device). The receiver 210 is a wirelessly chargeable electronic device capable of receiving wireless power from the transmitter 220 to charge the battery. For example, the receiver 210 may charge the battery based on the inductive coupling from the transmitter 220. Or the receiver 210 may charge the battery based on the coupling of the plane wave radiation from the transmitter 220. [

Referring to FIG. 1B, receiver 210 couples to an inductive current or plane wave radiation field and generates output power. The receiver 210 and the transmitter 220 may be separated by a certain distance. The transmitter 220 further includes a transmit antenna to provide energy transmission means, and the receiver 210 further includes a receive antenna to provide energy receiving means.

Wireless charging by induction method

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.

2A and 2B are block diagrams illustrating a receiver 210 and a transmitter 220 for performing wireless charging using an inductive scheme according to one embodiment of the present disclosure, And FIG. 2B shows a block diagram of the transmitter 220. FIG.

The receiver 210 may charge the battery using an induction current generated in the transmitter 220. [ The receiver 210 may be a device provided in the mobile terminal or the mobile terminal, or may be a device separate from the mobile terminal.

The case where the receiver 210 is a mobile terminal or a mobile terminal is described below with reference to FIG.

The transmitter 220 is a device for wirelessly charging the battery of the receiver 210, and is a power transmitter for transmitting power required for charging the battery.

2A, a receiver 210 includes a secondary coil 211, a rectifier 212, a converter 213, a communication controller 214, a charger 215, and a battery 216. Here, the secondary coil 211, the rectifier 212, the converter 213, and the communication control unit 214 are collectively referred to as a power receiving unit P. The power receiver P receives the induced current generated in the transmitter 220.

The secondary coil 211 generates an induced current according to a change in an electromagnetic field generated in the primary coil 221 of the transmitter 220. The secondary coil 211 receives an induced current generated in the primary coil 221 to generate an induced current.

The rectifier 212 is an AC-DC converter for converting an induction current received through the secondary coil 211 into a DC power (DC voltage or DC power).

The converter 213 converts the DC power output from the rectifier 212 into a predetermined voltage. That is, the converter 213 serves to convert the DC power into an appropriate voltage for charging the battery. For example, if the direct current power output through the rectifier 212 is 9V, the converter 213 converts 9V to 5V.

The communication control unit 214 performs communication with the transmitter 220. The communication control unit 214 may request the transmitter 220 to authenticate whether the terminal is capable of charging. When the authentication is requested, the communication control unit 214 transmits identification information such as the device number of the battery to the transmitter 220.

The charging unit 215 charges the battery 216 using an induction current received through the secondary coil 211. In other words, the charging unit 215 supplies the battery 216 with an induction current generated by the secondary coil 211 due to an electromagnetic induction phenomenon generated in the transmitter 220. The charging unit 215 may include a charging circuit for controlling charging of the battery, and an overcurrent / overvoltage protection circuit for preventing overcurrent and overvoltage.

2B, the transmitter 220 includes a primary coil 221, a sensor 222, a switching unit 223, a comparison unit 224, a control unit 225, an output unit 226, and a memory 227, . The control unit 225 may include a power control unit 228 and a data control unit 229, which will be described in detail with reference to FIG.

The primary coil 221 generates an electromagnetic field when power is applied. The primary coil 221 may be implemented as a solenoid. The electromagnetic field generated by the primary coil 221 may induce a magnetic field in the secondary coil 211 of the receiver 210 to generate an induction current in the secondary coil 211.

The sensor 222 senses the contact of the receiver 210 and confirms the position of the receiver 210 on the transmitter 220 when the receiver 210 is mounted on the transmitter 220. [

In addition, the sensor 222 helps the receiver 210 to be disposed at the highest charging efficiency when the receiver 210 is placed on the transmitter 220. When the receiver 210 is placed on the transmitter 220, the center of the primary coil 221 and the center of the secondary coil 211 are located on a straight line, so that the charging efficiency is the highest.

Therefore, in order to position the center of the primary coil 221 and the secondary coil 211 on a straight line, a magnet is provided at the center of the primary coil 221 so that the center of the secondary coil 211 becomes a primary The receiver 110 is pulled by the magnetic force when the center of the coil 221 is within a predetermined radius, so that the centers of the primary coil 221 and the secondary coil 211 are positioned on a straight line.

Here, if the distance between the center of the primary coil 221 and the center of the secondary coil 211 is out of the tolerance range D, the transmitter 220 recognizes that the receiver 210 does not satisfy the alignment condition, It is possible to transmit a signal to the receiver 210 indicating that it is impossible.

That is, when the centers of the primary coil 221 and the secondary coil 211 overlap, the transmitter 220 does not satisfy the alignment condition between the center of the primary coil 221 and the center of the secondary coil 211 The receiver 210 does not allow the wireless wireless charging of the battery. At this time, the transmitter 220 can transmit the information about the direction and the distance of the center of the secondary coil 211 of the receiver 210 to the receiver 210 with reference to the center of the primary coil 221.

The switching unit 221 serves to supply or cut off external power supplied to the primary coil 221 under the control of the controller 225.

The comparator 224 is used to check whether the transmitter 220 is operating normally. The comparator 224 detects a voltage or current of a power source supplied from the outside and confirms whether the detected voltage or current exceeds a threshold value. The comparator 224 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 224 determines whether the power applied from the outside is greater than 5V, and outputs the verification result to the control unit 225. [ The control unit 225 controls the switching unit 223 to cut off the power applied to the secondary coil 211 when the external power source exceeds 5V.

The control unit 225 controls the switching unit 223 according to the confirmation result received from the comparison unit 224. In addition, the controller 225 communicates with the receiver 210, and can confirm the state of charge of the battery through the communication. For example, the control unit 225 communicates with the receiver 210 through a short distance communication such as Bluetooth, so that the charging state of the battery 216 can be confirmed.

Also, the transmitter 220 may simultaneously charge a plurality of receivers.

In other words, two or more receivers can be placed on the transmitter 220 for charging, and the receivers may be of different models. For example, a mobile phone, a multimedia player, a PDA, and the like may be placed on the transmitter 220 at the same time and wirelessly charged.

The output unit 226 displays a state of charge according to the control of the controller 225. The output unit 226 may be implemented as a light emitting device and / or an LCD.

The memory 227 may store a program for the operation of the control unit 225 and temporarily store input / output data.

Wireless charging by resonance method

First, let's look at the resonance.

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.

3A and 3B are block diagrams illustrating a receiver 210 and a transmitter 220 for performing wireless charging using a resonance scheme in accordance with another embodiment of the present disclosure, And FIG. 3B shows a block diagram of the transmitter 220. As shown in FIG.

The receiver 210 may charge the battery using coupling of the plane wave radiation generated by the transmitter 220. The receiver 210 may be a device provided in the mobile terminal or the mobile terminal, or may be a device separate from the mobile terminal.

The case where the receiver 210 is a mobile terminal or a mobile terminal is described below with reference to FIG.

3A, the receiver 210 includes a receiving antenna 211 ', a matching unit 212', a rectifier and a switching circuit 213 ', a communication control unit 214', a charging unit 215 ', a battery 216 ').

The matching portion 212 ', rectifier and switching circuit 213' may generate a DC power output to charge the battery 216 '.

3A, the receiver 210 includes a receiving antenna 211 ', a rectifier 212', a converter 213 ', a communication controller 214', a charger 215 ', and a battery 216' do. Here, the receiving antenna 211 ', the rectifier 212', the converter 213 ', and the communication control unit 214' are collectively referred to as a power receiving unit Q. Generally, energy is wirelessly propagated to the receive antenna 211 ', and then coupled to the mobile terminal 100 via the power receiver Q.

The receiving antenna 211 'is tuned to resonate at the same frequency or near the same frequency as the transmitting antenna.

The rectifier 212 'rectifies the RF energy signal received at the receiving antenna 211' to non-AC power.

The converter 213 'converts the rectified RF energy signal to an energy potential (e.g., voltage) compatible with the mobile terminal 100.

The communication controller 214 'communicates with the transmitter 220. The communication control unit 214 'may request the transmitter 220 to authenticate whether the corresponding terminal is a rechargeable device. When the authentication request is made, the communication control unit 214 'transmits identification information such as the device number of the battery to the transmitter 220.

The charging unit 215 'charges the battery 216' using the RF energy signal received via the receiving antenna 211 '. In other words, the charger 215 'converts the RF energy signal generated in the transmitter 220 into a usable form in the mobile terminal 100 and supplies it to the battery 216'. The charging unit 215 'may include a charging circuit for controlling charging of the battery, and an overcurrent / overvoltage protection circuit for preventing overcurrent and overvoltage.

Referring to FIG. 3B, the transmitter 220 includes a transmission antenna 221 ', a sensor 222', a matching unit 223 ', an oscillator 224', and a control unit 225 '. The transmitter 220 may further include an output unit 226 'and a memory 227'. In addition, the control unit 225 'may include a power control unit 228' and a data control unit 229 ', which will be described in detail with reference to FIG.

The transmitting antenna 221 'is tuned to resonate at the same frequency or near the same frequency as the receiving antenna.

The sensor 222 '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 transmit antenna 221 '. This detection is monitored by the control unit 225 'for use in determining whether to enable the oscillator to transmit energy to communicate with the mobile terminal 100.

The matching portion 223'indicates the RF signal as determined by the oscillator 224'and reduces the harmonic emissions to a level to prevent self-jamming of the devices coupled to the mobile terminal 100, (E. G., 50 ohms) to transmit antenna 221 '.

The oscillator 224 'is configured to generate at the desired frequency and may be adjusted in response to the adjustment signal.

The control unit 225 '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 226 'displays the charging state under the control of the control unit 225'. The output unit 226 'may be implemented as a light emitting device and / or an LCD.

The memory 227 'may store a program for operation of the control unit 225', and temporarily store input / output data.

4 is a block diagram illustrating a mobile terminal (or terminal) associated with one embodiment of the present disclosure.

The mobile terminal may include the receiver 210 of FIG. 2A, as discussed above.

The terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply unit 190, and the like. 3A and 3B 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 110 may include one or more modules for enabling wireless communication between the terminal 100 and the wireless communication system or between the terminal 100 and the network in which the terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 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 112.

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 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 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 111 may be stored in the memory 160.

The mobile communication module 112 transmits and receives radio signals 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 113 is a module for wireless Internet access, and may be built in or enclosed in the terminal 100. 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 114 refers to a module for short-range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

The position information module 115 is a module for obtaining the position of the terminal, and a representative example thereof is a Global Position System (GPS) module.

Referring to FIG. 4, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through 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 can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the terminal 100 such as the open / close state of the terminal 100, the location of the terminal 100, 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 100 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 the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

The display unit 151 displays (outputs) information to be processed by the terminal 100. 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 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, 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 151 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 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the terminal 100. [ For example, in the terminal 100, 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 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') 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 unit 151 or a capacitance generated in a specific portion of the display unit 151 into 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 controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

Referring to FIG. 4, the proximity sensor 141 may be disposed in the inner area 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 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 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 152 also outputs sound signals related to functions (e.g., call signal reception tones, message reception tones, etc.) performed in the terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the terminal 100. 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 153 may output a signal for notifying the 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 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of the vibration generated by the hit module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a 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 154 can be implemented not only to transmit the tactile effect through the 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 154 may include two or more haptic modules 154 according to the configuration of the terminal 100.

The memory 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

In addition, the memory 160 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 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, 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 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the terminal 100 or transmits data in the terminal 100 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 170.

The identification module is a chip for storing various information for authenticating the usage right of the terminal 100 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 100 through the port.

When the terminal 100 is connected to an external cradle, the interface unit may be a path through which power from the cradle is supplied to the terminal 100, 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 180 may include a multimedia module 185 for multimedia playback. The multimedia module 185 may be implemented in the control unit 180 or may be implemented separately from the control unit 180.

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

The power supply unit 190 includes a battery 191 for supplying power to each component of the terminal 100 and may include a charging unit 192 for charging the battery 191 by wire or wirelessly. The charging unit 192 may be an inductive or resonant type receiver 210 as described above with reference to FIGS. 2 and 3 when charged wirelessly. In this case, the battery in the receiver 210 may be omitted.

The various embodiments described herein may be embodied 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 embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the control unit 180 itself.

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 160 and can be executed by the control unit 180. [

Data synchronization in wireless charging system

5 is a block diagram of a wireless charging system for data synchronization in accordance with one embodiment of the present invention. A wireless charging system for data synchronization according to an embodiment of the present invention includes a mobile terminal 100, a wireless power transmission device 220, and an external storage device 300. The mobile terminal 100 may include a wireless power receiving device 210 or may be connected to a wireless power transmitting device 210 to receive power from the wireless power transmitting device 220.

As described above, the mobile terminal 100 may include a memory 160 and a controller 180, and the wireless power transmitter 220 may include memories 227 and 227 'and controllers 225 and 225' . Meanwhile, the external storage device 300 may include a memory 360 and a data control unit 382.

Each of the memories 160, 227, 227 ', and 360 may store data such as media data (text, image, music, video file, etc.), calendar data, email data, schedule data, Each memory 160, 227, 227 ', 360 may also store a list of data including information about data stored in pre-allocated areas. The information on the data stored in the preallocated area may include information on the identification information (ID), the name of the data, the format of the data, the location where the data is stored, the size of the data, the creation / modification / have.

The control unit 180 of the mobile terminal 100 includes a power control unit 181 and a data control unit 182. The power control unit 181 receives wireless power from the power control units 228 and 228 'of the wireless power transmission apparatus 220 in accordance with the induction method or the resonance method, and charges the battery using the received wireless power. The power control unit 181 transmits a message of a predetermined type to the power control units 228 and 228 'of the wireless power transmission apparatus 220 or transmits power control signals to the power control units 228 and 228' Lt; RTI ID = 0.0 > a < / RTI > predetermined type of message.

The data control unit 182 receives the data synchronization request from the data control units 229 and 229 'of the wireless power transmission apparatus 220 and transmits the data synchronization request to the pre- To the data control units 229 and 229 'of the wireless power transmission apparatus 220, a first data list including information on the stored data. When data synchronization is performed in the wireless power transmission device 220, the first data list is updated based on the synchronization result.

The data control unit 182 receives the updated first data list from the data control units 229 and 229 'of the wireless power transmission apparatus 220 and transmits data required for synchronization according to the updated first data list to the wireless power To the data control units 229 and 229 'of the transmission apparatus 220 or to the data control units 229 and 229' of the wireless power transmission apparatus 220 and stores them in the memory 160 or deletes them.

The control units 225 and 225 'of the wireless power transmission apparatus 220 include power control units 228 and 228' and data control units 229 and 229 '. The power control units 228 and 228 'sense whether the mobile terminal 100 exists in an area where wireless power can be transmitted and transmit the sensed result to the data control units 229 and 229'. In addition, the power control units 228 and 228 'can transmit wireless power to the power control unit 181 of the mobile terminal 100 according to an induction method or a resonance method. To this end, the power control units 228 and 228 'transmit a predetermined type of message to the power control unit 181 of the mobile terminal 100 or transmit a message of a predetermined type from the power control unit 181 of the mobile terminal 100 .

The data control units 229 and 229 'receive information indicating that the mobile terminal 100 exists in an area capable of wirelessly transmitting power from the power control units 228 and 228' And transmits a data synchronization request to the control unit 182. The data control units 229 and 229 'receive the first data list from the data control unit 182 of the mobile terminal 100 in response to the data synchronization request.

Upon reception of the first data list, the data control units 229 and 229 'transmit the received first data list to the memory 227 and 227' of the wireless power transmission apparatus 220, And performs data synchronization by comparing the second data list with the second data list. That is, the data control units 229 and 229 'match one data list to another data list or merge two data lists according to the setting based on the comparison result of the first data list and the second data list . The data control units 229 and 229 'transmit the first data list matched with the second data list or merged with the second data list to the data control unit 182 of the mobile terminal 100.

Also, the data control units 229 and 229 'may transmit data necessary for synchronization according to the second data list matched with the first data list or merged with the first data list, to the data control unit 182 of the mobile terminal 100 Or received from the data control unit 182 of the mobile terminal 100 and stored in the memories 227 and 227 'or deleted.

The data control units 229 and 229 'determine whether communication with the external storage device 300 is possible. If it is determined that the external storage device 300 can communicate with the external storage device 300, And sends a data synchronization request to the control unit 382. The data control units 229 and 229'may use the data stored in the pre-allocated area of the memory 360 in the external storage device 300 from the data control unit 382 of the external storage device 300 in response to the data synchronization request And receives a third data list containing information.

Upon reception of the third data list, the data control units 229 and 229 'transmit the received third data list to the wireless power transmission apparatus 220 through the information about the data stored in the pre-allocated areas of the memories 227 and 227' And performs data synchronization by comparing the second data list with the second data list. That is, the data control units 229 and 229 'match one data list to another data list or merge two data lists according to the setting based on the comparison result of the third data list and the second data list . The data control units 229 and 229 'transmit the third data list matched with the second data list or merged with the second data list to the data control unit 382 of the external storage device 300.

The data control units 229 and 229 'may synchronize data necessary for synchronization according to the second data list matched to the third data list or merged with the third data list, Or received from the data control unit 382 of the external storage device 300 and stored in the memories 227 and 227 'or deleted.

The external storage device 300 includes a data control unit 382. The data control unit 382 receives the data synchronization request from the data control units 229 and 229 'of the wireless power transmission apparatus 220 and transmits the data synchronization request from the external storage device 300 to the pre- To a data control unit (229, 229 ') of the wireless power transmission apparatus (220), a third data list including information on data stored in the wireless power transmission apparatus (220). When data synchronization is performed in the wireless power transmission device 220, the third data list is updated based on the synchronization result. The data control unit 182 receives the updated third data list from the data control units 229 and 229 'of the wireless power transmission apparatus 220 and transmits data required for synchronization according to the updated third data list to the wireless power To the data control units 229 and 229 'of the transmission apparatus 220 or to the data control units 229 and 229' of the wireless power transmission apparatus 220 and stores them in the memory 360 or deletes them.

The data control units 229 and 229 'of the mobile terminal 100 and the data control units 229 and 229' of the wireless power transmission apparatus 220 or the data control units 229 and 229 ' The data control unit 382 of the base station 300 may be a wired Internet technology such as Ethernet or the like, a wireless LAN (Wi-Fi), a wibro (wireless broadband), a wimax (World Interoperability for Microwave Access) Or wireless communication technology such as Bluetooth, RFID (Radio Frequency Identification), IrDA (Infrared Data Association), UWB (Ultra Wideband), ZigBee, Data can be transmitted and received.

The external storage device 300 may be a personal computer, a workstation, a network-attached storage (NAS), a portable device, a web hard And the like.

6 is a flowchart illustrating a data synchronization method in a wireless charging system according to an embodiment of the present invention.

The power control units 228 and 228 'sense whether the mobile terminal 100 exists in an area where wireless power can be transmitted and transmit the sensed result to the data control units 229 and 229' (S110).

In step 120, the data control units 229 and 229 'receive information indicating that the mobile terminal 100 exists in an area capable of wirelessly transmitting power from the power control units 228 and 228' And sends a data synchronization request to the data control unit 182 of the mobile station 100. Alternatively, if it is determined in operation 120 that the mobile terminal 100 does not receive information from the power control units 228 and 228 'indicating that the mobile terminal 100 exists in an area capable of wirelessly transmitting power, the data control units 229 and 229' Continues to the power control units 228 and 228 'to detect whether or not the mobile terminal 100 exists in an area capable of wirelessly transmitting power and to request the data control units 229 and 229' to transmit the sensed result to the data control units 229 and 229 ' do.

The data control units 229 and 229'read the information about the data stored in the pre-allocated area of the memory 160 in the mobile terminal 100 from the data control unit 182 of the mobile terminal 100 in response to the data synchronization request And receives a first data list including the first data list (S130).

Upon reception of the first data list, the data control units 229 and 229 'transmit the received first data list to the memory 227 and 227' of the wireless power transmission apparatus 220, And performs data synchronization with the second data list (S140).

7 is a flowchart illustrating a data synchronization method in a wireless charging system according to an embodiment of the present invention.

The data control units 229 and 229 'determine whether communication with the external storage device 300 is possible (S210).

The data control unit 229 or 229 'transmits a data synchronization request to the data control unit 382 of the external storage device 300 when the external storage device 300 determines that communication is possible. Alternatively, if it is determined in operation 220 that the external storage device 300 is not capable of communication, the data control units 229 and 229 'continue to monitor whether the external storage device 300 can communicate.

The data control units 229 and 229'may use the data stored in the pre-allocated area of the memory 360 in the external storage device 300 from the data control unit 382 of the external storage device 300 in response to the data synchronization request And receives a third data list including information (S230).

Upon reception of the third data list, the data control units 229 and 229 'transmit the received third data list to the wireless power transmission apparatus 220 through the information about the data stored in the pre-allocated areas of the memories 227 and 227' And performs data synchronization by comparing the second data list with the second data list (S240).

8A and 8B are diagrams for explaining a data synchronization process according to an embodiment of the present invention.

Referring to FIG. 8A, the first data list may include information about data stored in the pre-allocated areas of the memories 227 and 227 'in the wireless power transmission apparatus 220. For example, the first data list may include files designated by names of 'THE WALKING DEAD E01.AVI', 'DREAM-HIGH E16.AVI', and 'SOMEDAY.MP3'. The first data list may be the same as the third data list in synchronization with the third data list indicating the information about the data stored in the preallocated area of the memory 360 in the external storage 300. [

Referring to FIG. 8B, the second data list may include information on data stored in the pre-allocated area of the memory 160 in the mobile terminal 100. [ For example, the second data list may include files designated by the names " THE WALKING DEAD E01.AVI " and " DREAM-HIGH E15.AVI ".

When the mobile terminal 100 is detected in an area where the wireless power transmission apparatus 220 can transmit power wirelessly, the wireless power transmission apparatus 220 can receive the second data list of FIG. 8B. In addition, the wireless power transmission apparatus 220 can perform synchronization by comparing the received second data list with the first stored data list of FIG. 8A.

The wireless power transmission device 220 may either match the second data list to the first data list (based on the wireless power transmission device 220), match the first data list to the second data list (Based on the terminal 100), or merges the first data list into the second data list (merge basis). The wireless power transmission apparatus 220 transmits the second data list that has been matched or merged and updated to the mobile terminal 100. [

('DREAM-HIGH E16.AVI' and 'SOMEDAY.MP3') which are in the first data list but not in the second data list are transmitted to the mobile terminal 100 when the wireless power transmission apparatus 220 is a standard, The terminal 100 deletes data ('DREAM-HIGH E15.AVI') that is in the second data list but not in the first data list.

('DREAM-HIGH E15.AVI'), which is in the second data list but not in the first data list, is transmitted to the wireless power transmission apparatus 220 and the wireless power transmission apparatus 220 transmits data ('DREAM-HIGH E16.AVI' and 'SOMEDAY.MP3') that are in the first data list but not in the second data list.

('DREAM-HIGH E16.AVI' and 'SOMEDAY.MP3'), which are in the first data list but not in the second data list, are transmitted to the mobile terminal 100 and are in the second data list, 1 " data list (" DREAM-HIGH E15.AVI ") is transmitted to the wireless power transmitting apparatus 220.

1st Example

9A and 9B illustrate indicators that can be displayed in a wireless power transmission apparatus during data synchronization according to an embodiment of the present invention.

The wireless power transmission apparatus 220 may further include an output unit 226 or 226 'for outputting an indicator reflecting the progress of data synchronization. The indicator reflecting the progress of the data synchronization may include any one of an indicator indicating that data synchronization is in progress, an indicator indicating completion of data synchronization, and an indicator indicating occurrence of an error during data synchronization.

9A and 9B, the output units 226 and 226 'of the wireless power transmission apparatus 220 may indicate the progress of data synchronization with the mobile terminal 100 or the data synchronization progress status with the external storage apparatus 300 Can be output.

For example, referring to the status item (READY) of FIG. 9A, the output units 226 and 226 'of the wireless power transmission apparatus 220 include an indicator O indicating that the mobile terminal 100 (MOBILE TERMINAL) And an external storage device 300 (EXTERNAL STORAGE)) can not be synchronized.

Referring to the synchronization item SYNC in FIG. 9B, the output units 226 and 226 'of the wireless power transmission apparatus 220 are connected to an indicator 50% indicating the progress of data synchronization with the mobile terminal 100 (MOBILE TERMINAL) ) And an external storage device 300 (EXTERNAL STORAGE)).

Referring to the synchronization item SYNC in FIG. 9B, when an error occurs during data synchronization, the output units 226 and 226 'of the wireless power transmission apparatus 220 transmit data with the mobile terminal 100 (MOBILE TERMINAL) An indicator (ERROR) indicating a synchronization error may be displayed.

Second Example

10A to 10D are views for explaining a message that can be displayed on a mobile terminal during data synchronization according to an embodiment of the present invention.

The data control units 229 and 229 'of the wireless power transmission apparatus 220 can transmit a message reflecting the progress of data synchronization to the mobile terminal 100. [ The message reflecting the progress of data synchronization may include a message indicating the start of data synchronization, a message indicating the progress of data synchronization, a message indicating completion of data synchronization, and a message indicating an error of data synchronization.

Referring to FIG. 10A, the data control units 229 and 229 'of the wireless power transmission apparatus 220 may transmit a message to the mobile terminal 100 indicating the start of data synchronization. The mobile terminal 100 may display a message on the screen 510 indicating the start of data synchronization received from the data control units 229 and 229 'of the wireless power transmission apparatus 220.

Referring to FIG. 10B, the data control units 229 and 229 'of the wireless power transmission apparatus 220 can transmit a message indicating the progress of data synchronization to the mobile terminal 100. The mobile terminal 100 may display a message on the screen 520 indicating the progress of data synchronization received from the data control units 229 and 229 'of the wireless power transmission apparatus 220.

Referring to FIG. 10C, the data control units 229 and 229 'of the wireless power transmission apparatus 220 may transmit a message to the mobile terminal 100 indicating completion of data synchronization. The mobile terminal 100 may display a message on the screen 530 indicating completion of data synchronization received from the data control units 229 and 229 'of the wireless power transmission apparatus 220. [

Referring to FIG. 10D, the data control units 229 and 229 'of the wireless power transmission apparatus 220 can transmit a message indicating an error in data synchronization to the mobile terminal 100. The mobile terminal 100 may display a message on the screen 540 indicating an error in data synchronization received from the data control units 229 and 229 'of the wireless power transmission apparatus 220. [

Third Example

11A is a diagram for explaining a reference setting of data synchronization according to an embodiment of the present invention.

The wireless power transmission device 220 may further include output units 226 and 226 'and an input unit (not shown). Outputs 226 and 226 'and inputs of wireless power transmission device 220 may provide an interface by which data synchronization criteria may be established.

For example, as shown in FIG. 11A, the output units 226 and 226 'of the wireless power transmission apparatus 220 may display a screen including a menu for selecting a data synchronization criterion. The data synchronization criteria may include a wireless power transmitter reference, a mobile reference, and a merging reference.

In this state, the input of the wireless power transmission device 220 senses an input that selects a data synchronization criterion. The data control units 229 and 229 'can set data synchronization standards according to the sensed input.

11B is a diagram for explaining the area setting of data synchronization according to an embodiment of the present invention.

The wireless power transmission device 220 may further include output units 226 and 226 'and an input unit (not shown). Outputs 226 and 226 'and input of wireless power transmission device 220 may provide an interface for configuring a data synchronization area.

For example, as shown in FIG. 11B, the output units 226 and 226 'of the wireless power transmission apparatus 220 may display a screen including a menu for selecting a data synchronization area. The data synchronization area may include pre-allocated storage areas such as, for example, 'MOVIE', 'MP3', 'PHOTO', and 'TEXT'.

In this state, the input of the wireless power transmitter 220 senses the input selecting the data synchronization area. The data control units 229 and 229 'can set a data synchronization area according to the sensed input.

Fourth Example

12A to 12C are diagrams for explaining a data synchronization area according to an embodiment of the present invention.

Referring to FIGS. 12A to 12C, the wireless power transmission apparatus 220 in the rechargeable region, based on the wireless power transmission apparatus 220, can transmit power wirelessly to the mobile terminal 100. In addition, the wireless power transmission apparatus 220 in the communication coverage area based on the wireless power transmission apparatus 220 can perform data synchronization with the mobile terminal 100. [ On the other hand, the communicable area may include a rechargeable area, and in this case, the wireless power transmission device 220 in the rechargeable area may also perform data synchronization with the mobile terminal 100.

Referring to FIG. 12A, in the first step, the mobile terminal 100 is located outside the communicable area. In this case, the wireless power transmission apparatus 220 periodically transmits a message for searching for a device to transmit wireless power. However, since the mobile terminal 100 is located outside the chargeable area, no response is received to the wireless power transmission device 220. [

Referring to FIG. 12B, in the second step, the mobile terminal 100 is located inside the communicable area, but outside the rechargeable area. In this case, the wireless power transmission apparatus 220 periodically transmits a message for searching for a device to transmit wireless power. However, since the mobile terminal 100 is located outside the chargeable area, no response is received to the wireless power transmission device 220. [

Referring to FIG. 12C, in the third step, the mobile terminal 100 is located in the rechargeable area. In this case, the wireless power transmission apparatus 220 periodically transmits a message for searching for a device to transmit wireless power. Since the mobile terminal 100 is located in the chargeable area, a response from the mobile terminal 100 is received in the wireless power transmission device 220. [

Upon receiving the response from the mobile terminal 100, the wireless power transmission apparatus 220 requests the mobile terminal 100 to receive the first data list, and receives the first data list in response to the first data list from the mobile terminal 100 . The wireless power transmission device 220 compares the first data list received from the mobile terminal 100 with a pre-stored second data list to perform data synchronization.

No error occurs in the data synchronization when the mobile terminal 100 is located within the communicable area until the data synchronization is completed. However, in the case where the mobile terminal 100 is located outside the communicable area before the data synchronization is completed, an error occurs in the data synchronization.

Referring again to FIG. 12B, in the fourth step, the mobile terminal 100 is located inside the communicable area but outside the rechargeable area. In this case, because the mobile terminal 100 is located outside the rechargeable area (i.e., out of the rechargeable area) but within the communicatable area, the wireless power transmission device 220 continues to perform data synchronization .

Referring again to FIG. 12A, in the fifth step, the mobile terminal 100 is located outside the communicable area. In this case, since the mobile terminal 100 is located outside the communicable area, the wireless power transmission device 220 stops data synchronization and generates an error message. The wireless power transmitting apparatus 220 may output the generated error message or transmit it to the mobile terminal 100. In addition, the wireless power transmission device 220 can restore the data synchronization according to the setting and return to the state before the data synchronization starts.

Fifth Example

13 is a flowchart illustrating a data synchronization process performed by a mobile terminal according to an embodiment of the present invention.

The power control unit 181 senses whether the mobile terminal 100 exists in an area capable of wirelessly receiving power from the wireless power transmission apparatus 220 and transmits the sensed result to the data control unit 182 (S310) .

In step 320, the data control unit 182 receives information indicating that the mobile terminal 100 exists in an area where it can receive power wirelessly from the power control unit 181, And transmits a data synchronization request to the data control units 229 and 229 '. Alternatively, if the mobile terminal 100 does not receive information indicating that the mobile terminal 100 exists in an area capable of wirelessly receiving power from the power control unit 181 in step 320, the data control unit 182 controls the power control unit 181 The mobile terminal 100 detects whether the mobile terminal 100 exists in an area capable of wirelessly receiving power and requests the data control unit 182 to transmit the sensed result.

The data control unit 182 receives data from the data control units 229 and 229 'of the wireless power transmission device 220 in response to the data synchronization request and transmits the pre-allocated areas 227 and 227' The first data list including information on the data stored in the first data list is received (S330).

Upon receipt of the first data list, the data controller 182 transmits the received first data list to the second data list including the information about the data stored in the pre-allocated area of the memory 160 in the mobile terminal 100 And data synchronization is performed (S340).

An embodiment applicable to the wireless power transmission apparatus 220 may be applied to the wireless power transmission apparatus 220 only when the mobile terminal 100 performs data synchronization as shown in FIG. 100).

For example, the output unit 150 of the mobile terminal 100 may output an indicator reflecting the progress of data synchronization. Here, the indicator may be an indicator indicating that data synchronization is in progress, an indicator indicating completion of data synchronization, or an indicator indicating occurrence of an error during data synchronization.

The data control unit 182 of the mobile terminal 100 may receive the first data list at the time when the power control unit 181 wirelessly receives power from the wireless power transmission apparatus 220, 100 continues to perform data synchronization even if it deviates from the area where it can receive power wirelessly from the wireless power transmission device 220. [

Meanwhile, the data synchronization method according to embodiments of the present invention can be implemented as a code readable by a processor in a processor-readable recording medium provided in an image display device. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the recording medium that can be read by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet . In addition, the processor-readable recording medium may be distributed over network-connected computer systems so that code readable by the processor in a distributed fashion can be stored and executed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

100: mobile terminal 210: receiver (wireless power receiving apparatus)
220: transmitter (wireless power transmission device) 300: external storage device

Claims (17)

A power controller for determining whether a mobile terminal exists in a rechargeable area capable of wirelessly transmitting power; And
Receiving a first data list from the mobile terminal when it is determined that the mobile terminal exists in the chargeable area, comparing the first data list with a pre-stored second data list, And a data control section
Wherein the data control unit comprises:
And transmits a data synchronization request to the external storage device if it is determined that the external storage device is present in the communicable area,
The external storage device transmits a third data list in response to the data synchronization request,
And the communicable area includes the chargeable area. The apparatus of claim 1, wherein the data control unit comprises:
And receives the third data list from the external storage device and compares the third data list with the second data list to perform data synchronization with the external storage device. The apparatus of claim 1, wherein the data control unit comprises:
And wherein either one of the first data list and the second data list is matched or merged with the other one, and the matched or merged first data list is transmitted to the mobile terminal. The apparatus of claim 1, wherein the data control unit comprises:
And transmits a message reflecting the progress of the data synchronization to the mobile terminal. The method according to claim 1,
And an output unit for outputting an indicator reflecting the progress of the data synchronization,
Wherein the indicator comprises:
An indicator indicating completion of the data synchronization, and an indicator indicating occurrence of an error during data synchronization. delete delete delete delete delete The apparatus of claim 1, wherein the data control unit comprises:
Wherein the mobile terminal continues to perform the data synchronization in operation if the mobile terminal is in the communicable area even if the mobile terminal leaves the rechargeable area where it can transmit power wirelessly. Determining whether a mobile terminal exists in a rechargeable area capable of wirelessly transmitting power;
Receiving a first data list from the mobile terminal if it is determined that the mobile terminal is present in the rechargeable area; And
Comparing the first data list with a pre-stored second data list to perform data synchronization with the mobile terminal;
Transmitting a data synchronization request to the external storage device if it is determined that the external storage device is present in the communicable area; And
Receiving a third data list from the external storage device in response to the data synchronization request,
Wherein the communicable area includes the rechargeable area. ≪ Desc / Clms Page number 19 > In the mobile terminal,
A power controller for determining whether the mobile terminal exists in a chargeable area capable of receiving power wirelessly from a wireless power transmission device; And
Receiving a first data list from the wireless power transmission device when it is determined that the mobile terminal is present in the rechargeable area, comparing the first data list with a pre-stored second data list, And a data control unit for performing data synchronization with the device,
Wherein the first data list comprises:
When the wireless power transmission apparatus transmits a data synchronization request to an external storage device existing in a communicable area and receives a third data list in response to the data synchronization request from the external storage device, And synchronizing data with the external storage device using the data,
And the communicable area includes the chargeable area. 14. The method of claim 13,
And an output unit for outputting an indicator reflecting the progress of the data synchronization,
Wherein the indicator comprises:
An indicator indicating completion of the data synchronization, and an indicator indicating occurrence of an error during the data synchronization. delete delete 14. The data processing apparatus according to claim 13,
Wherein said mobile terminal continues to perform said data synchronization if said mobile terminal is in said communicable area even if said mobile terminal leaves said rechargeable area where said mobile terminal can receive power wirelessly.

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