KR101432591B1 - Mobile terminal having media transfer protocol(mtp) restoring function and restoring method using the same - Google Patents

Abstract

The present invention relates to a mobile terminal having a media transfer protocol (MTP) recovery function and a recovery method thereof. When a MTP connection is requested, the MTP DB (Data Base) DB, and connects the MTP using the restored MTP DB. That is, the present invention performs a validity check on an MTP DB when performing an MTP connection to transmit a media file between a device and an external device, and provides the user with a method of recovering the MTP DB and a method of recovering the MTP DB. The media file transfer between external devices can be performed more stably.

MTP recovery, MTP DB, media transfer

Description

TECHNICAL FIELD [0001] The present invention relates to a mobile terminal having a media transfer protocol (MTP) recovery function and a method of restoring the same. BACKGROUND ART [0002]

The present invention relates to a mobile terminal having a media transfer protocol (MTP) recovery function and a method for restoring the same.

The mobile terminal may be configured to perform various functions. Examples of such various functions include a data and voice communication function, a function of photographing a video or a moving image through a camera, a voice storage function, a music file playback function through a speaker system, and an image or video display function. Some mobile terminals include additional functions to execute games, and some other mobile terminals are also implemented as multimedia devices. Moreover, recent mobile terminals can receive a broadcast or multicast signal to view a video or television program.

Further, efforts for supporting and increasing the functions of the mobile terminal continue. Such efforts include not only changes and improvements in structural components that form the mobile terminal, but also improvements in software or hardware.

For example, a separate driver is required to transfer data between a mobile terminal and an external device such as a PC (personal computer) through a connection cable. As the performance of the external device and the mobile terminal has been improved and a miniaturization of the mobile terminal has been developed, a protocol capable of transmitting media data (eg, a music file, a moving picture file, and a picture file) without installing a driver has been developed. Protocol (Media Transfer Protocol: MTP).

When an external device transmits a media file to the mobile terminal through the MTP, attribute information, that is, metadata information, of the transferred file is stored in MTPDB01.bin and RefDBMTP01.bin of the built-in or external memory. At this time, the MTPDB01.bin and RefDBMTP01.bin are referred to as an MTP database (DB).

Therefore, in the mobile terminal, the MTP requires a DB in terms of protocol characteristics, and a DB exists in the built-in or external memory in the case of a third-party terminal.

However, the MTP DB storing the metadata may be corrupted in the creation step due to a hardware problem or other reasons, or may be damaged by a user's mistake while the terminal is being used. However, since the conventional MTP DB is not validated, there is a problem that the MTP DB can not be transferred even if the MTP DB is damaged.

The present invention relates to a mobile terminal having an MTP recovery function capable of transmitting a media file through an MTP connection even if the MTP DB is damaged, and a method for restoring the same.

According to an aspect of the present invention, there is provided a mobile terminal including a display module; And a control unit for performing a validation of an MTP DB (Data Base) in the background to recover a damaged MTP DB and transmitting / receiving media data to / from an external device via an MTP connection when a media transfer protocol (MTP) connection is requested.

According to an aspect of the present invention, there is provided an MTP recovery method for a mobile terminal, including: receiving a media transfer protocol (MTP) connection request; Performing validation on an MTP DB (Data Base); Recovering the damaged MTP DB according to the validation result; Connecting the MTP using the restored MTP DB, and transmitting and receiving media data to and from the external device.

Preferably, the damaged MTP DB includes an abnormally generated MTP DB or an MTP DB whose content is added, deleted, or modified by a user.

Preferably, the media data includes a music file, a moving picture file, and a picture file.

Preferably, the damaged MTP DB formats the whole memory card stored in the MTP DB or deletes only the damaged MTP DB, and creates and restores a new MTP DB.

Preferably, when the MTP DB is damaged, a pop-up for repairing a damaged MTP DB is displayed on the display unit.

Preferably, the pop-up includes a message to format the memory card and delete only the corrupted MTP DB and attempt to reconnect the MTP and attempt to connect to the MTP.

Preferably, when the MTP DB is damaged, a new MTP DB is created after deleting the damaged MTP DB without displaying pop-ups.

The present invention performs media file transmission between a device such as a mobile terminal and an external device more stably by performing validity check on the MTP DB when performing an MTP connection to transmit a media file between the device and an external device.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal may be implemented in various forms. For example, the mobile terminal described in the present specification may be a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player) have.

The mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, An interface unit 170, a control unit 180, a power supply unit 190, and the like. 1 shows a mobile terminal having various components. However, not all illustrated components are required. A mobile terminal may be implemented by more components than the illustrated components, or a mobile terminal may be implemented by fewer components.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more components that allow wireless communication between the mobile terminal 100 and the wireless communication system or wireless communication between the mobile terminal 100 and a network on which the mobile 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 management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to 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 management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. 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.

Meanwhile, the broadcast related information may be provided through a mobile communication network, and 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).

The broadcast receiving module 111 receives broadcasting signals using various broadcasting systems. In particular, the broadcasting receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S) Only Digital Broadcast-Handheld (DVB-H), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. Of course, the broadcast receiving module 111 is configured to be suitable for all broadcasting systems that provide broadcasting signals 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.

In addition, 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. Here, 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 refers to a module for wireless Internet access, and the wireless Internet module 113 can be built in or externally.

The short-range communication module 114 is 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 the short distance communication technology.

The location information module 115 is a module for confirming or obtaining the location of the mobile terminal. One example is the GPS (Global Position System) module. The GPS module receives position information from a plurality of satellites. Here, the location information may include coordinate information indicated by latitude and longitude. For example, the GPS module can accurately calculate the current location according to the triangulation method by measuring the precise time and distance from three or more satellites and measuring three different distances. A method of obtaining distance and time information from three satellites and correcting the error by one satellite may be used. In particular, the GPS module can acquire latitude, longitude and altitude as well as three-dimensional velocity information and accurate time from the position information received from the satellite.

An audio / video (A / V) 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. Then, 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. [ The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.

The microphone 122 receives an external sound signal by a microphone in a communication mode, a recording mode, a voice recognition mode, and 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. The microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control 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. Particularly, when the touch pad has a mutual layer structure with the display unit 151, which will be described later, it can be called a touch screen.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence of the user, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. In addition, a sensing function related to whether or not the power supply unit 190 is powered on, whether the interface unit 170 is coupled to an external device, and the like is performed.

The interface unit 170 serves as an interface with all external devices connected to the mobile terminal 100. 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, Video input / output (I / O) ports, earphone ports, and the like.

Here, the identification module is a chip that stores various information for authenticating the use right of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identity module (SIM) ), A Universal Subscriber Identity Module (" USIM "), and the like. In addition, an apparatus having an identification module (hereinafter referred to as 'identification device') can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port. The interface unit 170 receives data from an external device or receives power from the external device to transfer the data to each component in the mobile terminal 100 or to transmit data in the mobile terminal 100 to an external device.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 may include a display unit 151, an audio output module 152, and an alarm unit 153.

The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. If the mobile terminal 100 is in the video communication mode or the photographing mode, the captured image and / or the received image or UI and GUI are displayed.

Meanwhile, as described above, when the display unit 13 and the touch pad have a mutual layer structure to constitute a touch screen, the display unit 151 can be used as an input device in addition to the output device. The display unit 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three-dimensional display 3D display). In addition, there may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, the mobile terminal 100 may be provided with an external display unit (not shown) and an internal display unit (not shown) at the same time.

The sound output module 152 outputs 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, and a broadcast reception mode. The sound output module 152 outputs an acoustic signal related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The sound output module 152 may include a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include receiving a call signal, receiving a message, and inputting a key signal. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than an audio signal or a video signal. For example, it is possible to output a signal in a vibration mode. When a call signal is received or a message is received, the alarm unit 153 can output a vibration to notify it. Alternatively, when the key signal is input, the alarm unit 153 can output the vibration by the feedback to the key signal input. The user can recognize the occurrence of an event through the vibration output as described above. Of course, a signal for notifying the occurrence of an event may also be output through the display unit 151 or the audio output module 152.

The memory 160 may store a program for processing and controlling the control unit 180 and may store a program for temporarily storing input / output data (e.g., a phone book, a message, a still image, Function may be performed.

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 random access memory (SRAM), a read only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM) , An optical disc, and the like. In addition, the mobile terminal 100 may operate a web storage for storing the memory 150 on the Internet.

The control unit 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. In addition, the control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

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

The various embodiments described herein may be embodied in a computer-readable recording medium 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 processors, controllers, micro-controllers, microprocessors, and electrical units for performing functions. In some cases, And may be implemented by the control unit 180.

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. In addition, the software codes may be stored in the memory 160 and executed by the control unit 180. [

 In the foregoing, the mobile terminal related to the present invention has been described in terms of components according to functions. Hereinafter, the mobile terminal related to the present invention will be further described with reference to FIGS. 2 and 3 in view of the components according to the outline. Hereinafter, for simplicity of explanation, a slider type mobile terminal will be described as an example among various types of mobile terminals such as a folder type, a bar type, a swing type, a slider type, and the like. Therefore, the present invention is not limited to a slider type mobile terminal but can be applied to all types of mobile terminals including the above-mentioned type.

2 is a perspective view of a mobile terminal according to an embodiment of the present invention.

The mobile terminal of the present invention includes a first body 200 and a second body 205 configured to be slidable along at least one direction on the first body 200. In the case of a folder phone, the mobile terminal of the present invention includes a first body and a second body configured to fold or unfold at least one side of the first body.

The state where the first body 200 is disposed in a state of being overlapped with the second body 205 may be referred to as a closed configuration and the first body 200 may be referred to as a second body 205 may be referred to as an open configuration. The mobile terminal operates mainly in the standby mode in the closed state, but the standby mode is also released by the operation of the user. In addition, the mobile terminal operates mainly in the communication mode in the open state, but may be switched to the standby mode by the operation of the user or a predetermined period of time.

The casing (casing, housing, cover, etc.) constituting the outer appearance of the first body 200 is formed by the first front case 220 and the first rear case 225. Various electronic components are installed in a space formed by the first front case 220 and the first rear case 225. At least one intermediate case may be additionally disposed between the first front case 220 and the first rear case 225.

The cases may be formed by injection molding of a synthetic resin or may be formed of a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the sound output module 152, the camera 121 or the first user input unit 210 may be disposed in the first body 200, specifically, the first front case 220.

The display unit 151 includes a liquid crystal display (LCD), organic light emitting diodes (OLED), and the like, which visually represent information.

In addition, the touch panel may be superimposed on the display unit 151 in a layer structure so that the display unit 151 may operate as a touch screen to enable information input by a user's touch.

The sound output module 152 may be implemented in the form of a speaker.

The camera 121 may be implemented to appropriately photograph an image or a moving image of a user or the like.

As in the case of the first body 200, the case constituting the outer appearance of the second body 205 is formed by the second front case 230 and the second rear case 235.

A second user input unit 215 may be disposed on the front face of the second body 205, specifically, the second front case 230. A third user input unit 245, a microphone 122 and an interface unit 170 may be disposed on at least one of the first front case 230 and the second rear case 235. [

The first to third user input units 210, 215 and 245 may be collectively referred to as a manipulating portion 130. In a tactile manner in which the user operates with a tactile impression, Can be employed.

For example, the user input unit may be implemented by a dome switch or a touch pad capable of receiving a command or information by a push or a touch operation of a user, or may be a wheel, a jog type, a joystick, or the like Can also be implemented.

In a functional aspect, the first user input unit 210 is for inputting commands such as start, end, scrolling, etc., and the second user input unit 215 is for inputting numbers, letters, symbols and the like.

In addition, the third user input unit 245 may operate as a hot-key for activating a special function in the mobile terminal.

The microphone 122 may be implemented in a form suitable for receiving voice, sound, etc. of a user.

The interface unit 170 is a path for allowing a mobile terminal related to the present invention to exchange data with an external device. For example, the interface unit 170 may be a wired or wireless connection terminal for connecting to an earphone, a port for short-range communication (for example, an IrDA port, a Bluetooth port, (wireless Lan port), etc.), or power supply terminals for supplying power to the mobile terminal.

The interface unit 170 may be a card socket for accommodating an external card such as a subscriber identification module (SIM) or a user identity module (UIM) or a memory card for storing information.

And a power supply unit 190 for supplying power to the mobile terminal is mounted on the second rear case 235 side.

The power supply unit 190 may be detachably coupled to a rechargeable battery, for example, for charging.

3 is a rear perspective view of the mobile terminal of FIG.

Referring to FIG. 3, a camera 121 may be further mounted on the rear surface of the second rear case 235 of the second body 205. The camera 121 of the second body 205 has a photographing direction which is substantially opposite to that of the camera 121 of the first body 200 and a different pixel from the camera 121 of the first body 200 Lt; / RTI >

For example, the camera 121 of the first body 200 has low pixels so that it is easy to capture a face of a user in the case of a video call or the like and transmit it to the other party, Since it is often the case that a subject is photographed and not immediately transferred, it is preferable to have a high pixel.

A flash 250 and a mirror 255 may be additionally disposed adjacent to the camera 121 of the second body 205. The flash 250 illuminates the subject when the subject of the subject is photographed by the camera 121 of the second body 205. The mirror 255 allows the user to illuminate the user's own face or the like when the user intends to take a picture of himself / herself (self-photographing) using the camera 121 of the second body 205.

The second rear case 235 may further include an acoustic output module 152.

The sound output module 152 of the second body 205 may implement a stereo function together with the sound output module 152 of the first body 200 and may be used for a call in a speakerphone mode.

In addition, an antenna 260 for receiving broadcast signals may be disposed on one side of the second rear case 235 in addition to the antenna for communication. The antenna 260 may be installed to be detachable from the second body 205.

A portion of the slide module 265 that slidably couples the first body 200 and the second body 205 is disposed on the first rear case 225 side of the first body 200.

The other part of the slide module 265 may be disposed on the second front case 230 side of the second body 205 and may not be exposed to the outside as in this figure.

The second camera 121 and the like are disposed on the second body 205, the present invention is not limited thereto.

For example, at least one of the configurations 260, 121 to 250, and 152 described as being disposed in the second rear case 235, such as the camera 121 of the second body, It is also possible that the first rear case 225 is mounted to the rear case 225. In such a case, there is an advantage that the configuration (s) disposed in the first rear case 225 in the closed state is protected by the second body 205. Further, even if the camera 121 of the second body is not separately provided, the camera 121 of the first body may be configured to be rotatable so that the camera 121 of the second body can be photographed up to the photographing direction .

The terminal 100 shown in Figs. 1 to 3 is operable in a communication system capable of transmitting data through a frame or a packet, including a wired / wireless communication system and a satellite-based communication system .

Hereinafter, a communication system capable of operating a terminal according to the present invention will be described with reference to FIG.

The communication system may use different air interfaces and / or physical layers. For example, wireless interfaces that can be used by communication systems include, but are not limited to, Frequency Division Multiple Access ('FDMA'), Time Division Multiple Access ('TDMA'), Code Division Multiple Access (CDMA), Universal Mobile Telecommunications Systems (UMTS) (especially Long Term Evolution (LTE)), Global System for Mobile Communications (GSM) . Hereinafter, for the sake of convenience of description, the description will be limited to CDMA. However, the present invention is applicable to all communication systems including CDMA wireless communication systems.

4, the CDMA wireless communication system includes a plurality of terminals 100, a plurality of base stations (BSs) 270, and base station controllers (BSCs) 275 , And a mobile switching center ('MSC') 280. MSC 280 is configured to be coupled to a Public Switched Telephone Network (" PSTN ") 290, and is also configured to be coupled to BSCs 275. BSCs 275 may be coupled in pairs with BS 270 through a backhaul line. The backhaul line may be provided according to at least one of E1 / T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL or xDSL. Thus, a plurality of BSCs 275 may be included in the system shown in FIG.

Each BS 270 may comprise at least one sector, and each sector may comprise an omnidirectional antenna or an antenna pointing to a particular direction of radial from BS 270. [ In addition, each sector may include two or more antennas of various types. Each BS 270 may be configured to support a plurality of frequency assignments and each of the plurality of frequency assignments has a specific spectrum (e.g., 1.25 MHz, 5 MHz, etc.).

The intersection of sector and frequency assignment may be referred to as a CDMA channel. BS 270 may be referred to as a Base Station Transceiver Subsystem (BTSs). In this case, the word "base station" may be referred to as a combination of one BSC 275 and at least one BS 270. [ The base station may also indicate a "cell site ". Alternatively, each of the plurality of sectors for a particular BS 270 may be referred to as a plurality of cell sites.

4, a broadcasting transmitter (BT) 295 transmits a broadcasting signal to the terminals 100 operating in the system. The broadcast module 111 shown in FIG. 1 is provided in the terminal 100 to receive a broadcast signal transmitted by the BT 295.

In addition, FIG. 4 illustrates several Global Positioning System ('GPS') satellites 300. The satellites 300 help to locate at least one of the plurality of terminals 100. Although two satellites are shown in Figure 4, useful location information may be obtained by two or more satellites. The GPS module 115 shown in FIG. 1 cooperates with satellites 300 to obtain desired location information. Here, you can track your location using all of the technologies that can track your location, as well as your GPS tracking technology. Also, at least one of the GPS satellites 300 may optionally or additionally be responsible for satellite DMB transmission.

Among the typical operations of a wireless communication system, BS 270 receives reverse link signals from various terminals 100. [ At this time, the terminals 100 are connecting a call, transmitting or receiving a message, or performing another communication operation. Each of the reverse link signals received by the particular base station 270 is processed by the particular base station 270. The data resulting from the processing is transmitted to the connected BSC 275. The BSC 275 provides call resource allocation and mobility management functions, including the organization of soft handoffs between the base stations 270. The BSC 275 also transmits the received data to the MSC 280 and the MSC 280 provides additional transmission services for connection with the PSTN 290. [ Similarly, the PSTN 290 connects to the MSC 280, the MSC 280 connects to the BSCs 275, and the BSCs 275 communicate with the BSs 270 ).

5 is a schematic diagram of a mobile terminal applied to MTP recovery according to the present invention.

5, a mobile terminal according to the present invention includes a wireless communication unit 110, a user input unit 130, an output unit 150, a memory 160, an interface unit 170, a control unit 180, A power supply unit 190, and the like.

The wireless communication unit 110 performs wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminals 100. The user input unit 130 generates input data for controlling the operation of the mobile terminal 100 .

The interface unit 170 serves as an interface with all external devices connected to the mobile terminal 100. 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, and an access port.

Here, the identification module is a chip that stores various information for authenticating the use right of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identity module (SIM) ), A Universal Subscriber Identity Module (" USIM "), and the like. In addition, an apparatus having an identification module (hereinafter referred to as 'identification device') can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port. The interface unit 170 receives data from an external device or receives power from the external device to transfer the data to each component in the mobile terminal 100 or to transmit data in the mobile terminal 100 to an external device.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 may include a display unit 151, an audio output module 152, and an alarm unit 153.

The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. If the mobile terminal 100 is in the video communication mode or the photographing mode, the captured image and / or the received image or UI and GUI are displayed. In addition, the display unit 151 displays information related to media data transmission, displays a pop-up related to the validity check of the MTP DB, and informs the user whether the memory card is formatted or deleted You will be prompted to confirm.

The memory 160 may store a program for processing and controlling the control unit 180 and may store a program for temporarily storing input / output data (e.g., a phone book, a message, a still image, Function may be performed. Also, the memory 160 may store the newly created MTP DB according to the MTP DB validity check result when a separate memory card is not used.

The control unit 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. In addition, the control unit 180 controls the validity of the MTP DB and the restoration of the function of the MTP DB according to the check result when the media file is received from an external device such as a PC.

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

The MTP DB function recovery method in the mobile terminal according to the present invention will now be described with reference to the accompanying drawings.

6 is a diagram illustrating an example of basic media file transfer between a mobile terminal and an external device according to the present invention. In Fig. 6, a PC is taken as an example of an external device.

6, the mobile terminal 100 is connected to an external device such as a PC (Personal Computer) 50 via an interface 170 and a connection cable 51, and transmits a media transfer protocol (MTP) (E.g., a music file, a moving picture file, and a picture file) to and from the PC 50 using the portable terminal. At this time, the MTP database (DB) of the memory 160 of the mobile terminal, that is, the internal or external memory, that is, MTPDB01.bin and RefDBMTP01.bin stores metadata, which is attribute information of the transmitted and received files. In addition, the OS (Operating System) of the PC 50 is Windows XP + WMP10 or more or Windows Vista.

7 is a diagram showing an example of connection mode setting for MTP.

7, the user can set "Music Sync" in the USSB connection mode after setting the USB connection mode in the menu of the mobile terminal. Preferably, the "Music Sync" is a default connection mode Display "MTP mode".

Therefore, when the user selects the MTP mode after connecting the mobile terminal 100 to the PC 50 via the connection cable 51, the user connects the display unit 151 of the terminal to Music Sync "Music Sync mode" is finally displayed.

In this state, when the user downloads desired music from the PC 50 or uploads the desired music to the PC 50, the control unit 180 of the mobile terminal transmits or receives the corresponding music file through the MTP, And stores metadata of the transmitted or received file in the MTP DB of the memory. However, the MTP DB may be corrupted in the following cases due to hardware problems or other reasons.

## If the MTP DB is damaged

- Damaged during MTP DB creation due to hardware problems or other reasons.

- If the user curiously or deliberately adds or deletes the MTP DB file to the DB file arbitrarily after the deletion, the MTP DB is damaged.

- If the user has curiously or intentionally modified the MTP DB file after arbitrarily making modifications to the MTP DB file after opening the MTP DB file

If the MTP DB is damaged due to the above reasons, the MTP will not operate normally, and the terminal user will no longer be able to transmit or receive the media file to the PC 50.

Therefore, in the case where the MTP DB is abnormally generated, or the contents of the DB are added or deleted by the user, the MTP DB is validated in the background invisibly to the user at the time of MTP connection, and the memory card is formatted Only the MTP DB is deleted and re-created to perform the MTP recovery function.

FIG. 9 is an example of formatting a memory card when the MTP DB is damaged as a result of the validity check of the MTP DB, as an example of media transport protocol (MTP) restoration of the mobile terminal. This example shows a case where the MTP DB is stored in a memory card which is an external memory.

9, when the user connects the mobile terminal 100 to the PC 50 via the connection cable 51 and selects the MTP mode, the mobile terminal 100 displays the validity of the MTP DB in the background invisibly Perform the inspection.

As a result of the validity check, when the MTP DB is damaged as described above, the mobile terminal 100 displays the pop-up 52 'Format the memory card and try the MTP mode again' on the display unit 151. When the pop-up 523 is displayed, additional effects (sound, vibration) may be output through the sound output module 152 and the alarm unit 153.

Thus, when a terminal user inputs a command to format a memory card according to a message displayed on the pop-up 52 using a specific key or touch of the user input unit 130 (when the display unit is a touch screen) (100) forms the memory card, and then creates a new MTP DB by using the MTP DB stored in the backup memory (not shown) to restore the MTP function. The backup memory includes a certain area of the internal memory or a separate memory.

On the other hand, if it is determined that the MTP DB is normal, the mobile terminal 100 displays Music Sync Mode, which is an MTP mode, normally on the display unit 151.

10 shows another example of MTP recovery of a mobile terminal, in which MTP DB is deleted when MTP DB is damaged as a result of validation of MTP DB. This example is applicable both when the MTP DB is stored in the internal memory and the external memory, but is particularly effective when stored in the internal memory. That is, formatting the entire memory is more effective when other information is lost.

10, when the user connects the mobile terminal 100 to the PC 50 via the connection cable 51 and selects the MTP mode, the control unit 180 checks the validity of the MTP DB in the background invisibly .

As a result of the validity check, if the MTP DB is damaged as described above, the mobile terminal 100 displays the pop-up 53 'Do not try MTP mode. Will you try again?' On the display unit 151. When the pop-up 523 is displayed, additional effects (sound, vibration) may be output through the sound output module 152 and the alarm unit 153.

If the user selects "yes" in the pop-up 53 using a specific key or touch of the user input unit 130 (if the display unit is a touch screen), the mobile terminal 100 formats the memory card as a whole (= Damaged) MTP DB is deleted, and the deleted MTP DB is received from the backup memory and regenerated to recover the MTP function. At this time, the damaged MTP DB, that is, MTPDB01.bin and RefDBMTP01.bin can be searched through a comparison with the data stored in the backup memory, or can be searched using an added or deleted DB or other easily known methods It will be possible.

On the other hand, if it is determined that the MTP DB is normal, the mobile terminal 100 displays Music Sync Mode, which is an MTP mode, normally on the display unit 151.

In addition, according to another embodiment of the present invention, if the MTP DB is damaged as a result of the validity check, the mobile terminal 100 deletes the damaged MTP DB without displaying a separate pop-up 52 as shown in FIGS. 9 and 10 Once created, MTP can be connected normally.

FIG. 11 is a flowchart illustrating a transmission protocol (MTP) recovery method of a mobile terminal according to an embodiment of the present invention. FIG. 11 includes all the examples of FIG. 9 and FIG. 10, and includes all cases where the MTP DB is stored in the internal or external memory.

11, in order to transmit or receive media data (eg, music files, moving picture files, and picture files), a user connects the interface unit 170 of the mobile terminal 100 with the PC (50) to the USB port.

In this state, if the user selects the USB connection mode in the terminal search mode using the user input unit 130 (S10), the control unit 810 transmits an MTP connection (= MTP) to the display unit 151 Mode) is completed, and the user transmits or receives a desired media file in the Music Sync mode.

However, according to the present invention, the MTP DB is validated before the Music Sync mode is displayed, thereby eliminating the disadvantage that the media file can not be transmitted due to the damage of the MTP DB despite the MTP connection.

That is, if the user requests the MTP connection, the control unit 180 performs validation of the MTP DB in the background invisible to the user before displaying Music Sync mode on the display unit 151 (S11) (S12).

If it is determined that the MTP DB is damaged as a result of the validity check of the MTP DB, the controller 180 displays a separate pop-up notifying the user of the damage of the MTP DB on the display unit 151 (S13). Preferably, the message displayed in the pop-up message is "Format memory card and try MTP mode again" or "MTP mode does not work. Do you want to try again? ", And its content can be changed as needed.

Accordingly, the user formats the memory card according to the message displayed in the pop-up or retries the MTP connection (= MTP mode) to recover the MTP DB (S14).

9, when the user inputs an instruction to format the memory card according to the message displayed on the pop-up 52 through the user input unit 130, the controller 180 determines whether the memory card has been formatted The MTP function is restored by creating a new MTP DB using the data of the next backup memory. 10, when the user selects "yes" (or confirmation) in the pop-up 53 using the user input unit 130, the control unit 180 deletes only the damaged MTP DB Restore the MTP function by creating a new MTP DB.

When the series of operations is completed, the control unit 180 displays Music Sync mode indicating that the MTP connection (= MTP mode) is completed on the display unit 151 (S15).

On the other hand, if the MTP DB is normal in step S12, the mobile terminal 100 proceeds to step S15 and displays a Music Sync mode indicating that the MTP connection is completed on the display unit 151. [

Accordingly, the user transmits or receives the desired media file with the PC 50 in the Music Sync mode (S16).

While the present invention has been described by way of example of a media file transfer between a mobile terminal and a PC, the present invention is not limited thereto, and a device capable of communicating with the PC may be equally applied.

According to an embodiment of the present invention, the above-described method can be embodied as computer-readable code on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer-readable medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) . In addition, the computer may include a control unit 180 of the terminal.

The mobile terminal having the MTP DB restoration function according to the present invention described above can be applied not only to the configuration and method of the embodiments described above but also to various embodiments of the present invention, All or some of them may be selectively combined.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention;

2 is a front perspective view of a mobile terminal according to an embodiment of the present invention;

3 is a rear perspective view of a mobile terminal according to an embodiment of the present invention;

4 is a block diagram of a wireless communication system in which a mobile terminal may operate in accordance with an embodiment of the present invention.

5 is a schematic diagram of a mobile terminal applied to media transport protocol (MTP) recovery according to the present invention in accordance with the present invention.

6 is a diagram illustrating an example of basic media file transfer between a mobile terminal and an external device in the present invention.

7 is a diagram showing an example of connection mode setting for MTP;

8 illustrates a basic MTP connection between a mobile terminal and an external device in FIG.

9 is a diagram illustrating an example of MTP recovery of a mobile terminal according to the present invention.

10 illustrates another example of MTP recovery of a mobile terminal according to the present invention.

11 is a flowchart illustrating a method of recovering an MTP of a mobile terminal according to the present invention.

DESCRIPTION OF REFERENCE NUMERALS FOR MAJOR PART OF DRAWINGS ********

50: external device, PC (Personal Computer) 51: connecting cable

52,53: pop-up 100: mobile terminal

130: user input unit 151:

160: memory 170: interface section

180; The control unit

Claims (16)

A mobile terminal for transmitting and receiving media data to and from an external device through a media transfer protocol (MTP) connection, A display unit for displaying information related to the media data; And A control unit for restoring a damaged MTP DB through validation of an MTP database (DB) when a media transfer protocol (MTP) connection with an external device is requested and performing an MTP connection with an external device using the restored MTP DB; / RTI > If the MTP DB is damaged, the control unit displays a message informing the user of the damage of the MTP DB along with a recovery method of the damaged MTP DB in the pop-up, creates a new MTP DB according to the recovery method selected in the pop- Wherein the mobile terminal is a mobile terminal. The apparatus of claim 1, wherein the control unit And performs validation in the background. The method of claim 1, wherein the corrupted MTP DB Wherein the MTP DB comprises an abnormally generated MTP DB or a MTP DB whose content is added, deleted, or modified by a user. The method of claim 1, A music file, a moving picture file, and a picture file. The method of claim 1, wherein the MTP DB recovery method comprises: A method of formatting the entire memory card in which the MTP DB is stored, and a method of deleting only the damaged MTP DB. delete The method of claim 1, wherein the pop-up And a message to format the memory card and to retry the MTP connection. The method of claim 1, wherein the pop-up And deletes only the damaged MTP DB and attempts to connect to the MTP. The apparatus of claim 1, wherein the control unit If the MTP DB is corrupted, deletes the corrupted MTP DB immediately without displaying the pop-up, and creates a new MTP DB. Receiving a media transfer protocol (MTP) connection request with an external device; Performing validation on an MTP DB (Data Base); Recovering the damaged MTP DB if the MTP DB is damaged as a result of validation; And Transmitting and receiving media data to and from an external device after connecting the MTP using the recovered MTP DB, The step of recovering the damaged MTP DB Displaying a pop-up message including a message informing the MTP DB of a corruption and an MTP DB recovery method when the MTP DB is corrupted; And And recovering the MTP function by creating a new MTP DB according to the selected recovery method in the pop-up. 11. The method of claim 10, wherein the corrupted MTP DB Wherein the MTP DB includes an MTP DB that has been abnormally generated or that has been added, deleted, or modified by a user. 11. The method of claim 10, A music file, a moving picture file, and a picture file. 11. The method of claim 10, wherein the MTP DB recovery method comprises: A method of formatting the entire memory card in which the MTP DB is stored, and a method of deleting only the damaged MTP DB. delete delete 11. The method of claim 10, wherein the validation is performed in the background.

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