KR101710398B1 - Method for removing and re-sensing USB storage device and display device thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of removing and re-recognizing a recognition state of a USB storage device in an image display device and a video display device therefor, and more particularly, A method for displaying a second image displaying information stored in a USB storage device and removing a recognition state of a USB storage device connected to a video display device that controls to remove a recognition state of the USB storage device, Adoption of video display equipment. And displays a first image for listing at least one USB storage device whose recognition status is removed from the USB storage devices connected to the image display device and a second image for displaying information stored in the USB storage device, The present invention relates to a method of re-recognizing a USB storage device whose recognition state is removed from an image display device that controls the image display device.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of removing and re-sensing a USB storage device,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of removing and re-recognizing a recognition state of a USB storage device in an image display device and a video display device thereof, and more particularly, And a video display device according to the method.

The video display device is, for example, a device having a function of receiving and processing a broadcast image that a user can view. The video display device displays, for example, a broadcast selected by the user among the broadcast signals transmitted from the broadcast station on the display. Currently, broadcasting is changing from analog broadcasting to digital broadcasting around the world.

Recently, video display devices have been made high performance and multifunctional so as to use various functions in addition to digital broadcasting, and they are equipped with a USB (Universal Serial Bus) module and can receive data and video signals from various external devices and use them.

The USB is a type of serial port, and is a plug-and-play interface between a computer and a peripheral device such as a storage device, an audio player, a joystick, a keyboard, a scanner, and a printer.

The principle of USB is the same as serial port, but it is faster than serial port, convenient to connect, supports data transfer speed of 12Mbps, speed is enough to connect peripherals, and can connect up to 127 devices in a chain have.

In addition, when the USB device is connected to the image display device through the USB module, the file system of the USB device must be unmounted in the image display device to safely remove the USB device.

However, when removing a USB device, only a product name of the USB device is displayed on the video display device when a plurality of USB devices are connected. Therefore, when a plurality of USB devices having the same product name are connected, There is a problem that it can not be clearly judged.

In addition, if the USB device to be removed is not clearly determined and another USB device is removed, there is a problem that the connection of the USB device is manually disconnected from the image display device and then reconnected.

Therefore, when the USB device is removed from the image display device, detailed information of the USB device is provided to the user, and when the USB device is erased, the function of re-recognizing the USB device without physical manipulation is required.

It is an object of the present invention to provide an image display device and an operation method thereof that can improve the usability of the user.

It is another object of the present invention to provide an image display apparatus and an operation method thereof that can provide various user interfaces.

It is another object of the present invention to provide a video display device and a method of operating the same that can clearly understand a USB storage device to be removed from a video display device by a user.

Another object of the present invention is to provide an image display device and a method of operating the same that can recognize the removed USB storage device although the recognition state is removed.

A method of removing a recognition state of a USB storage device connected to an image display device according to an embodiment of the present invention includes displaying a first image listing at least one USB storage device recognized by the image display device, The method of claim 1, further comprising: in the displayed first image, focusing a first USB storage device to be removed; displaying a second image representing information stored in the focused first USB storage device; And controlling to remove the recognition state of the first USB storage device based on the recognition result.

A method of re-recognizing a USB storage device whose recognition state has been removed from an image display device according to an embodiment of the present invention includes a step of recognizing at least one USB storage device connected to the video display device, Displaying a first image listing the information stored in the first USB storage device, displaying a first image listing the information stored in the focused first USB storage device, And controlling to re-recognize the first USB storage device based on the displayed second image.

Also, the image display device according to an embodiment of the present invention may include a USB interface unit connected to at least one USB storage device, at least one first USB storage device whose recognition status is removed from the connected USB storage devices, A display unit for displaying a first image to be displayed on the first image and displaying a second image including information stored in the focused USB storage device, a signal for focusing the USB storage device in the first image, A user input interface unit for receiving a selection signal of a USB storage device, and a control unit for controlling the display unit to display the first image and the second image through the display unit, and when the selection signal is received through the user input interface unit, And a control unit for controlling the device to be recognized again.

According to another aspect of the present invention, there is provided an image display apparatus including a USB interface unit connected to at least one USB storage device, at least one USB storage unit connected to the USB interface unit, A display unit for displaying a first image listing a USB storage device and displaying a second image including information stored in the focused USB storage device, a signal for focusing the USB storage device in the first image, A user input interface unit for receiving a selection signal of a USB storage device to which the recognition state is to be removed from the image, and a control unit for controlling the display unit to display the first image and the second image through the display unit, If it is received, the recognition state of the selected USB storage device is removed And a control unit for controlling the control unit.

According to an embodiment of the present invention, among the USB storage devices connected to the video display device, the USB storage device to be removed can be clearly identified, and reliability can be improved.

In addition, according to another embodiment of the present invention, the USB storage device whose recognition state has been removed from the image display device can be re-recognized, and the user's convenience of use can be increased.

Meanwhile, according to another embodiment of the present invention, it is possible to provide various user interfaces in the image display device, and convenience for the user can be increased.

1 is a diagram schematically illustrating an example of an entire broadcasting system including an image display device according to an embodiment of the present invention.
2 is a view showing the internal structure of the image display apparatus shown in FIG.
FIG. 3 and FIG. 4 are diagrams showing one of the video display devices according to the embodiments of the present invention as a set-top box and a display device.
5 is a flowchart illustrating a method of removing a recognition state of a USB storage device connected to an image display device according to an exemplary embodiment of the present invention.
6 is a flowchart illustrating a method of re-recognizing a USB storage device whose recognition status is removed in an image display device according to an exemplary embodiment of the present invention.
7 is a view illustrating a display screen for controlling a USB device in an image display device according to an embodiment of the present invention.
8 is a view illustrating a display screen including a first image for eliminating a recognition state of a USB storage device connected to an image display device according to an embodiment of the present invention.
9 is a view showing a display screen including a second image of a USB storage device connected to an image display device according to an embodiment of the present invention.
FIG. 10 is a view illustrating a display screen including a confirmation menu for removing a recognition state of a USB storage device connected to an image display device according to an exemplary embodiment of the present invention. Referring to FIG.
11 is a view illustrating a display screen including a first image for re-recognizing a USB storage device whose recognition state has been removed from an image display device according to an embodiment of the present invention.
12 is a view showing a display screen including a confirmation menu for re-recognizing a USB storage device whose recognition status has been removed from an image display device according to an embodiment of the present invention.
13 is a view showing a display screen including a setup menu of a USB storage device list connected to an image display device according to an embodiment of the present invention.
FIGS. 14, 15, and 16 are views showing a display screen including a USB storage device list according to the setting of the setting menu of FIG.

Hereinafter, the present invention will be described in detail with reference to the drawings.

The suffix "module" and " part "for components used in the following description are given merely for ease of description, and the" module "and" part "

Meanwhile, the video display device described in the present invention is an intelligent video display device that adds a computer support function to a broadcast receiving function, for example, and is equipped with an Internet function while being faithful to a broadcast receiving function, Or an interface that is more convenient to use, such as a space remote controller. Also, it can be connected to the Internet and a computer by the support of a wired or wireless Internet function, and can perform functions such as e-mail, web browsing, banking or game. A standardized general-purpose OS can be used for these various functions.

Therefore, the video display device described in the present invention can freely add or delete various applications, for example, on a general-purpose OS kernel, so that various user-friendly functions can be performed. More specifically, the video display device may be, for example, a network TV, an HBBTV, a smart TV, or the like, and may be applied to a smartphone according to circumstances.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

As used herein, terms used in the present invention are selected from general terms that are widely used in the present invention while taking into account the functions of the present invention, but these may vary depending on the intention or custom of a person skilled in the art or the emergence of new technologies. Also, in certain cases, there may be a term chosen arbitrarily by the applicant, in which case the meaning thereof will be described in the description of the corresponding invention. Therefore, it is intended that the terminology used herein should be interpreted based on the meaning of the term rather than on the name of the term, and on the entire contents of the specification.

The USB storage device described below includes not only a USB memory device and an external USB hard disk but also an external device having a storage space inside the device and capable of connecting with a video display device through a USB connection port.

 1 is a diagram schematically illustrating an example of an entire broadcasting system including an image display device according to an embodiment of the present invention.

1, an overall broadcasting system including an image display apparatus according to an exemplary embodiment of the present invention includes a content provider (CP) 10, a service provider (SP) 20, A network provider (NP) 30 and an HNED 40. [ The HNED 40 corresponds to, for example, a client 100 which is an image display device according to an embodiment of the present invention. The client 100 corresponds to an image display device according to an embodiment of the present invention, and the image display device is, for example, a network TV, a smart TV, an IPTV, or the like.

The content provider 10 produces and provides various contents. 1, a terrestrial broadcaster, a cable SO (System Operator), a MSO (Multiple System Operator), a satellite broadcaster, Internet broadcaster and the like can be exemplified.

In addition, the content provider 10 may provide various applications in addition to the broadcast content. In this regard, it will be described in detail later.

The service provider 20 can provide the contents provided by the contents provider 10 in a service package. For example, the service provider 20 of FIG. 1 can package and provide the first terrestrial broadcast, second terrestrial broadcast, cable MSO, satellite broadcast, various Internet broadcasts, applications, etc. to the user.

Meanwhile, the service provider 20 can provide a service to the client 100 using a unicast or multicast method. The unicast method is a method of transmitting data 1: 1 between one sender and one receiver. For example, in a unicast method, when a receiver requests data from a server, the server can transmit data to the receiver upon request. The multicast method is a method of transmitting data to a plurality of receivers of a specific group. For example, the server can transmit data to a plurality of pre-registered receivers at once. An Internet Group Management Protocol (IGMP) protocol may be used for multicast registration.

The network provider 30 may provide a network for providing services to the client 100. The client 100 may be provided with a service by building a home network end user (HNED).

Conditional access or content protection may be used as means for protecting contents transmitted from the video display device system. As an example of such restriction reception or content protection, a scheme such as a cable card (CableCARD) and a DCAS (Downloadable Conditional Access System) may be used.

On the other hand, the client 100 can also provide the content through the network. In this case, conversely, conversely, conversely, the client 100 may be a content provider, and the content provider 10 may receive content from the client 100. [ In this case, there is an advantage that an interactive content service or a data service is possible.

2 is a view showing the internal structure of the image display apparatus shown in FIG.

2, an image display apparatus 100 according to an exemplary embodiment of the present invention includes a broadcast receiving unit 105, an external device interface unit 135, a storage unit 140, a user input interface unit 150, A control unit 170, a display unit 180, an audio output unit 185, a power supply unit 190, and a photographing unit (not shown). The broadcast receiving unit 105 may include a tuner 110, a demodulator 120, and a network interface unit 130. Of course, the tuner 110 and the demodulator 120 may be provided, but the network interface 130 may not be included. Alternatively, the tuner 110 and the demodulator 120 may be included, It is also possible to design the demodulation unit 120 not to include it.

The tuner 110 selects an RF broadcast signal corresponding to a channel selected by the user or all previously stored channels among RF (Radio Frequency) broadcast signals received through the antenna. Also, the selected RF broadcast signal is converted into an intermediate frequency signal, a baseband image, or a voice signal.

For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal (DIF). If the selected RF broadcast signal is an analog broadcast signal, it is converted into an analog baseband image or voice signal (CVBS / SIF). That is, the tuner 110 can process both a digital broadcast signal and an analog broadcast signal. The analog baseband video or audio signal (CVBS / SIF) output from the tuner 110 can be directly input to the controller 170.

Also, the tuner 110 can receive RF carrier signals of a single carrier according to an Advanced Television System Committee (ATSC) scheme or RF carriers of a plurality of carriers according to a DVB (Digital Video Broadcasting) scheme.

Meanwhile, the tuner 110 sequentially selects RF broadcast signals of all the broadcast channels stored through the channel memory function among the RF broadcast signals received through the antenna, and converts the RF broadcast signals into an intermediate frequency signal, a baseband image, or a voice signal have.

The demodulator 120 receives the digital IF signal DIF converted by the tuner 110 and performs a demodulation operation.

For example, when the digital IF signal output from the tuner 110 is the ATSC scheme, the demodulator 120 performs 8-VSB (8-Vestigal Side Band) demodulation, for example. Also, the demodulation unit 120 may perform channel decoding. To this end, the demodulator 120 includes a trellis decoder, a de-interleaver, and a reed solomon decoder to perform trellis decoding, deinterleaving, Solomon decoding can be performed.

For example, when the digital IF signal output from the tuner 110 is a DVB scheme, the demodulator 120 performs CODDMA (Coded Orthogonal Frequency Division Modulation) demodulation, for example. Also, the demodulation unit 120 may perform channel decoding. For this, the demodulator 120 may include a convolution decoder, a deinterleaver, and a reed-solomon decoder to perform convolutional decoding, deinterleaving, and reed solomon decoding.

The demodulation unit 120 may perform demodulation and channel decoding, and then output a stream signal TS. At this time, the stream signal may be a signal in which a video signal, a voice signal, or a data signal is multiplexed. For example, the stream signal may be an MPEG-2 TS (Transport Stream) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, or the like. Specifically, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

Meanwhile, the demodulating unit 120 may be separately provided according to the ATSC scheme and the DVB scheme. That is, it can be provided as an ATSC demodulation unit and a DVB demodulation unit.

The stream signal output from the demodulation unit 120 may be input to the controller 170. The control unit 170 performs demultiplexing, video / audio signal processing, and the like, and then outputs the video to the display unit 180 and audio to the audio output unit 185.

The external device interface unit 135 can connect the external device and the video display device 100. [ To this end, the external device interface unit 135 may include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

The external device interface unit 135 can be connected to an external device such as a DVD (Digital Versatile Disk), a Blu ray, a game device, a camera, a camcorder, a computer have. The external device interface unit 135 transmits external video, audio, or data signals to the controller 170 of the video display device 100 through a connected external device. Also, the control unit 170 can output the processed video, audio, or data signal to the connected external device. To this end, the external device interface unit 135 may include an A / V input / output unit (not shown), a wireless communication unit (not shown), or a USB interface unit.

The A / V input / output unit includes a USB terminal, a CVBS (Composite Video Banking Sync) terminal, a component terminal, an S-video terminal (analog), a DVI (Digital Visual Interface) terminal, an HDMI (High Definition Multimedia Interface) terminal, an RGB terminal, a D-SUB terminal, and the like.

The wireless communication unit can perform short-range wireless communication with other electronic devices. The image display device 100 may be a digital camera such as Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, Digital Living Network Alliance ) According to the communication standard.

The USB interface unit can perform data communication with an external device through a USB (Universal Serial Bus) serial port. That is, a Plug & Play interface between an external device such as a storage device, an audio player, a joystick, a keyboard, a scanner, a printer, and the like and a video display device can be performed through the USB interface unit.

Also, the external device interface unit 135 may be connected to the various set-top boxes via at least one of the various terminals described above to perform input / output operations with the set-top box.

The network interface unit 130 provides an interface for connecting the video display device 100 to a wired / wireless network including the Internet network. The network interface unit 130 may include an Ethernet terminal or the like for connection to a wired network and may be a WLAN (Wireless LAN) (Wi- Fi wireless broadband (Wibro), World Interoperability for Microwave Access (Wimax), and HSDPA (High Speed Downlink Packet Access) communication standards.

The network interface unit 130 can transmit or receive data with other users or other electronic devices via a network connected thereto or another network linked to the connected network. Particularly, it is possible to transmit a part of content data stored in the video display device 100 to another user registered in the video display device 100 or a selected user or selected one of the other electronic devices.

On the other hand, the network interface unit 130 can access a predetermined web page through the connected network or another network linked to the connected network. That is, it is possible to access a predetermined web page through a network and transmit or receive data with the server. In addition, content or data provided by a content provider or a network operator can be received. That is, it can receive contents such as a movie, an advertisement, a game, a VOD, a broadcast signal, and related information provided from a content provider or a network provider through a network. In addition, the update information and the update file of the firmware provided by the network operator can be received. It may also transmit data to the Internet or a content provider or network operator.

In addition, the network interface unit 130 can select and receive a desired application among applications open to the public via a network.

The storage unit 140 may store a program for each signal processing and control in the control unit 170 or may store the processed video, audio, or data signals.

The storage unit 140 may also function to temporarily store video, audio, or data signals input from the external device interface unit 135 or the network interface unit 130. In addition, the storage unit 140 may store information on a predetermined broadcast channel through the channel memory function.

The storage unit 140 may store information on the external device when a predetermined external device is connected through the external device interface unit 135. [

For example, when the USB storage device is connected through the external device interface unit 135, the storage unit 140 stores the file most recently accessed, the file having the largest capacity, You can store information about the most accessed files.

The storage unit 140 stores information on a tree structure of a directory stored in the USB storage device connected through the external device interface unit 135 and information on a directory name and a file name stored in the focused USB storage device .

In addition, when the recognition status of the USB storage device connected through the external device interface unit 135 is removed, the storage unit 140 stores information about the USB storage device whose recognition status is removed within a predetermined time from the video display device Can be stored. The predetermined time may be set to one day, one hour or any user set time in some cases.

The storage unit 140 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, etc.), RAM, ROM (EEPROM, etc.), and the like. The video display device 100 may reproduce and provide a content file (a moving image file, a still image file, a music file, a document file, an application file, etc.) stored in the storage unit 140 to a user.

FIG. 2 illustrates an embodiment in which the storage unit 140 is provided separately from the controller 170, but the scope of the present invention is not limited thereto. The storage unit 140 may be included in the controller 170.

The user input interface unit 150 transmits a signal input by the user to the control unit 170 or a signal from the control unit 170 to the user.

For example, the user input interface unit 150 may be configured to turn on / off the power, select the channel, and display the screen from the remote control device 200 according to various communication methods such as a radio frequency (RF) communication method and an infrared Or a control signal from the control section 170 to the remote control apparatus 200. The remote control apparatus 200 may be configured to receive the control signal from the control section 170,

Also, for example, the user input interface unit 150 can transmit a control signal input from a local key (not shown) such as a power key, a channel key, a volume key, and a set value to the controller 170.

For example, the user input interface unit 150 may transmit a control signal input from a sensing unit (not shown) that senses a user's gesture to the control unit 170, or may sense a signal from the control unit 170 (Not shown). Here, the sensing unit (not shown) may include a touch sensor, an audio sensor, a position sensor, an operation sensor, and the like.

In addition, for example, when a predetermined pointer is displayed on the display unit 180, the user input interface unit 150 may receive a movement signal for moving the pointer and transmit the movement signal to the controller 170.

In addition, for example, when the user wants to remove or re-recognize the recognition status of a predetermined USB storage device in the video display device, the user input interface unit 150 receives a selection signal of the USB storage device to be removed or re- To the control unit 170. FIG.

The control unit 170 demultiplexes the input stream or processes the demultiplexed signals through the tuner 110 or the demodulation unit 120 or the external device interface unit 135 to generate a signal for video or audio output Can be generated and output.

The video signal processed by the controller 170 may be input to the display unit 180 and displayed as an image corresponding to the video signal. The video signal processed by the controller 170 may be input to the external output device through the external device interface 135. [

The audio signal processed by the control unit 170 may be output to the audio output unit 185 through audio. The voice signal processed by the control unit 170 may be input to the external output device through the external device interface unit 135.

In addition, the control unit 170 can control the overall operation in the video display device 100. [ For example, the control unit 170 may control the tuner 110 to control the tuner 110 to select an RF broadcast corresponding to a channel selected by the user or a previously stored channel.

In addition, the controller 170 may control the image display device 100 according to a user command or an internal program input through the user input interface unit 150. In particular, the user can access the network and download a list of applications or applications desired by the user to the video display device 100.

For example, the controller 170 controls the tuner 110 to input a signal of a selected channel according to a predetermined channel selection command received through the user input interface unit 150. Then, video, audio, or data signals of the selected channel are processed. The control unit 170 allows the display unit 180 or the audio output unit 185 to output the video or audio signal processed by the user through the channel information or the like selected by the user.

For example, the control unit 170 may control the operation of the external device through the external device interface unit 135, for example, a camera or a camcorder, according to an external device video playback command received through the user input interface unit 150 So that the video signal or the audio signal of the audio signal output through the display unit 180 or the audio output unit 185 can be outputted.

Meanwhile, the control unit 170 may control the display unit 180 to display an image. For example, a broadcast image input through the tuner 110, an external input image input through the external device interface unit 135, an image input through the network interface unit, or an image stored in the storage unit 140 , And display on the display unit 180 can be controlled. At this time, the image displayed on the display unit 180 may be a still image or a moving image, and may be a 2D image or a 3D image.

Also, the control unit 170 can control to reproduce the content. The content at this time may be content stored in the video display device 100, received broadcast content, or external input content input from the outside. The content may be at least one of a broadcast image, an external input image, an audio file, a still image, a connected web screen, and a document file.

On the other hand, when entering the application viewing item, the control unit 170 can control to display a list of applications or applications that can be downloaded from the video display device 100 or from an external network.

The control unit 170 can control to install and drive an application downloaded from an external network, in addition to various user interfaces. Further, it is possible to control so that an image related to the executed application is displayed on the display unit 180 by the user's selection.

In addition, the controller 170 may be configured to associate a first image that lists at least one USB storage device recognized by the image display device among the USB storage devices connected to the USB interface, And controls the display unit 180 to display a second image including information stored in the USB storage device, and the selection signal of the USB storage device to be removed from the image display device is received through the user input interface unit 150 , It is possible to control the removal of the recognition state of the selected USB storage device.

In addition, the controller 170 may control to unmount the file system of the selected USB storage device from the file system of the operating system of the video display device when the selection signal of the USB storage device is received.

When the selection cursor movement signal for selecting the USB storage device to be removed from the first image is received through the user input interface unit 150, the controller 170 controls the USB And to display a second image containing information stored in the storage device.

In addition, the control unit 170 can access the most recently accessed file, the largest capacity file, and the most frequently accessed file among the files stored in the USB storage device recognized by the video display device through the USB interface unit (not shown) And controls the display unit 180 to display a first image including image data or a file name on the basis of the collected information, (140).

In addition, the controller 170 may control the display unit to display the first image including only the image data or the file name based on the previously stored first image setting information among the collected information.

The control unit 170 also receives information on the tree structure of the directory stored in the focused USB storage device, information on the directory name and file name stored in the focused USB storage device through the USB interface unit (not shown) And display the second image including the collected information through the display unit, and control the storage unit 140 to store the collected information.

In addition, the control unit 170 may connect at least one first USB storage device, whose recognition status is removed from among the USB storage devices connected through the USB interface unit (not shown), to a list And a second image including information stored in the focused USB storage device is displayed on the display unit 180 and a selection signal of the USB storage device to be recognized is input to the user input interface unit 135, it is possible to control to re-recognize the selected USB storage device.

The control unit 170 may control the file system of the USB storage device to be mounted on the file system of the operating system of the video display device when the selection signal of the USB storage device to be recognized is received.

When the selection cursor movement signal for selecting the USB storage device in the first image is received through the user input interface unit 135, the control unit 170 stores the selection cursor in the USB storage device And to display a second image containing information.

In addition, the control unit 170 searches the storage unit 140 for information about the USB storage device whose recognition status has been removed within a predetermined time from the video display device, and displays a first image including the searched information on the display (180). The predetermined time may be set to one day, one hour or any user set time in some cases.

The control unit 170 also collects information on the most recently accessed file, the largest capacity file, and the most accessed file among the files stored in the removed USB storage device in the storage unit 140 , And controls the display unit 180 to display a first image including the image data or the file name according to the collected information, and the first image setting stored in the storage unit 140 It is possible to control the display unit 180 to display the first image including only the image data or the file name according to the information.

The control unit 180 also collects information on the tree structure of the directory stored in the focused USB storage device stored in the storage unit 140 and information on the directory name and file name stored in the focused USB storage device And display the second image including the collected information through the display unit.

Although not shown in the drawing, a channel browsing processing unit for generating a channel signal or a thumbnail image corresponding to an external input signal may be further provided.

The channel browsing processing unit receives the stream signal TS output from the demodulation unit 120 or the stream signal output from the external device interface unit 135 and extracts an image from an input stream signal to generate a thumbnail image . The generated thumbnail image may be directly or encoded and input to the controller 170. In addition, the generated thumbnail image may be encoded in a stream format and input to the controller 170. The control unit 170 may display a thumbnail list having a plurality of thumbnail images on the display unit 180 using the input thumbnail images. On the other hand, the thumbnail images in this thumbnail list can be updated in sequence or simultaneously. Accordingly, the user can easily grasp the contents of a plurality of broadcast channels.

The display unit 180 converts an image signal, a data signal, an OSD signal processed by the control unit 170 or a video signal and a data signal received from the external device interface unit 135 into R, G, and B signals, respectively Thereby generating a driving signal.

The display unit 180 may include at least one USB storage device connected to the USB interface unit (not shown) for listing at least one USB storage device recognized by the video display device 1 image and display a second image including information stored in the focused USB storage device.

In addition, the display unit 180 may include a first USB storage device connected to the USB interface unit (not shown) for listing at least one USB storage device whose recognition status is removed, Display an image, and display a second image containing information stored in the focused USB storage device.

The display unit 180 may be a PDP, an LCD, an OLED, a flexible display, a 3D display, or the like.

Meanwhile, the display unit 180 may be configured as a touch screen and used as an input device in addition to the output device.

The audio output unit 185 receives a signal processed by the control unit 170, for example, a stereo signal, a 3.1 channel signal, or a 5.1 channel signal, and outputs it as a voice. The voice output unit 185 may be implemented by various types of speakers.

In order to detect the user's gesture, a sensing unit (not shown) having at least one of a touch sensor, a voice sensor, a position sensor, and an operation sensor may be further included in the image display device 100 have. A signal sensed by a sensing unit (not shown) may be transmitted to the controller 170 through the user input interface unit 150.

On the other hand, a photographing unit (not shown) for photographing a user may be further provided. The image information photographed by the photographing unit (not shown) may be input to the control unit 170.

The control unit 170 may sense the gesture of the user by combining the images photographed by the photographing unit (not shown) or the signals sensed by the sensing unit (not shown).

The power supply unit 190 supplies power to the entire video display device 100.

Particularly, it is possible to supply power to a control unit 170 that can be implemented in the form of a system on chip (SOC), a display unit 180 for displaying an image, and an audio output unit 185 for audio output .

To this end, the power supply unit 190 may include a converter (not shown) for converting the AC power into DC power. Meanwhile, for example, when the display unit 180 is implemented as a liquid crystal panel having a plurality of backlight lamps, an inverter (not shown) that can perform a PWM operation for variable luminance or dimming driving is further provided It is possible.

The remote control apparatus 200 transmits the user input to the user input interface unit 150. [ To this end, the remote control apparatus 200 can use Bluetooth, RF (radio frequency) communication, infrared (IR) communication, UWB (Ultra Wideband), ZigBee, or the like.

Also, the remote control apparatus 200 can receive the video, audio or data signal output from the user input interface unit 150 and display it on the remote control apparatus 200 or output sound or vibration.

The video display device 100 described above can be applied to digital broadcasting of the ATSC system (8-VSB system), digital broadcasting of the DVB-T system (COFDM system), digital broadcasting of the ISDB-T system (BST-OFDM system) And a digital broadcasting receiver capable of receiving at least one of the digital broadcasting signals.

Meanwhile, a block diagram of the image display device 100 shown in FIG. 2 is a block diagram for an embodiment of the present invention. Each component of the block diagram can be integrated, added, or omitted according to the specifications of the video display device 100 actually implemented. That is, two or more constituent elements may be combined into one constituent element, or one constituent element may be constituted by two or more constituent elements, if necessary. In addition, the functions performed in each block are intended to illustrate the embodiments of the present invention, and the specific operations and apparatuses do not limit the scope of the present invention.

2, the video display device 100 may include a tuner 110 and a demodulator 120, and may include a network interface unit 130 or an external device interface unit 135 , It is possible to receive and reproduce the image contents.

On the other hand, the image display device 100 is an example of a video signal processing device that performs signal processing of an image stored in the device or an input image. Another example of the image signal processing device includes a display 180 A set-top box excluding the audio output unit 185, a DVD player, a Blu-ray player, a game device, a computer, and the like may be further exemplified. The set-top box will be described with reference to Figs. 3 and 4 below.

FIG. 3 and FIG. 4 are diagrams showing one of the video display devices according to the embodiments of the present invention as a set-top box and a display device.

3, the set-top box 250 and the display device 300 can transmit or receive data by wire or wireless.

The set top box 250 may include a network interface unit 255, a storage unit 258, a signal processing unit 260, a user input interface unit 263, and an external device interface unit 265.

The network interface unit 255 provides an interface for connection to a wired / wireless network including the Internet network. It can also transmit or receive data to other users or other electronic devices via the connected network or other network linked to the connected network.

The storage unit 258 may store a program for each signal processing and control in the signal processing unit 260 or may store a video, It may perform a function for temporary storage of a signal.

The signal processing unit 260 performs signal processing of an input signal. For example, it is possible to demultiplex or decode an input video signal, and perform demultiplexing or decoding of an input audio signal. To this end, a video decoder or a voice decoder may be provided. The processed video signal or audio signal can be transmitted to the display device 300 through the external device interface unit 265. [

The user input interface unit 263 transfers a signal input by the user to the signal processing unit 260 or a signal from the signal processing unit 260 to the user. For example, various control signals, such as power on / off, operation input, and setting input, input through a local key (not shown) or the remote control device 200, may be received and transmitted to the signal processing unit 260.

The external device interface unit 265 provides an interface for transmitting or receiving data with an external device connected by wire or wirelessly. In particular, it provides an interface for transmitting or receiving data with the display device 300. It is also possible to provide an interface for data transmission or reception with an external device such as a game device, a camera, a camcorder, a computer (notebook computer) or the like.

The set-top box 250 may further include a media input unit (not shown) for playing a separate media. An example of such a media input unit is a Blu-ray input unit (not shown) or the like. That is, the set-top box 250 can include a Blu-ray player. The input media such as a Blu-ray disc can be transmitted to the display device 300 via the external device interface 265 for display after signal processing such as demultiplexing or decoding in the signal processor 260 .

The display device 300 includes a tuner 270, an external device interface unit 273, a demodulator 275, a storage unit 278, a control unit 280, a user input interface unit 283, a display unit 290, And an audio output unit 295, as shown in FIG.

The tuner 270, the demodulation unit 275, the storage unit 278, the control unit 280, the user input interface unit 283, the display unit 290, and the audio output unit 295, The user interface unit 150, the display unit 180, and the audio output unit 185 of the tuner 110, the demodulator 120, the storage unit 140, the controller 170, .

On the other hand, the external device interface unit 273 provides an interface for data transmission or reception with an external device connected by wire or wirelessly. In particular, it provides an interface for transmitting or receiving data with the set-top box 250.

Accordingly, a video signal or a voice signal input through the set-top box 250 is output through the display unit 180 or the audio output unit 185 via the control unit 170.

4, the set-top box 250 and the display device 300 are the same as the set-top box 250 and the display device 300 shown in FIG. 3 except that the tuner 270 and the multi- There is a difference in that the position of the projection 275 is located within the set-top box 250 rather than the display device 300. [ Hereinafter, the difference will be mainly described.

The signal processing unit 260 may perform signal processing of a broadcast signal received through the tuner 270 and the demodulation unit 275. Also, the user input interface unit 263 can receive inputs such as channel selection, channel storage, and the like.

5 is a flowchart illustrating a method of removing a recognition state of a USB storage device connected to an image display device according to an exemplary embodiment of the present invention.

When a signal for calling a menu for removing the USB storage device recognized by the current image display device is input from the user, the image display device outputs the list of USB storage devices recognized by the current image display device (S301).

The paging signal may include a hot key input signal of the video display device or the remote controller, or a selection signal of a menu item for removing the USB storage device from a predetermined menu item of the video display device.

In addition, the USB storage device list may include, in addition to the product name of the USB storage device connected to the video display device, a file that is most recently accessed, the largest capacity file, Or a first image containing image data. This will be described in detail below with reference to FIG.

Further, according to the embodiment, the first image may be configured according to the setting of the user. That is, the video display device can set the information included in the USB storage device list according to the preset USB storage device list setting information.

Accordingly, the user can grasp predetermined information about the data stored in the USB storage device, so that the user can clearly select the USB storage device from which to remove the recognition state.

Next, in the USB storage device list, the USB storage device to be removed is focused (S302).

According to an embodiment, the focusing step receives a movement signal of a selection cursor for selecting a USB storage device to be removed from the USB storage device list from the user, and focuses the USB storage device on which the selection cursor is located.

Therefore, the user can change the USB storage device to be focused only by moving the selection cursor.

Next, the directory structure of the focused USB storage device is output to the display unit of the image display device (S303).

According to an embodiment, the directory structure may include a second image including information about a tree structure, a directory name, and a file name of a directory stored in the USB storage device. This will be described in detail below with reference to FIG.

Accordingly, the user can more precisely remove the USB storage device to identify and remove the detailed information stored in the USB storage device to be removed.

Next, a selection signal of the USB storage device from which the recognition state is to be removed is received from the user (S304).

According to the embodiment, when the selection signal is received from the user, the file system of the selected USB storage device can be unmounted from the file system of the operating system of the video display device.

6 is a flowchart illustrating a method of re-recognizing a USB storage device whose recognition status is removed in an image display device according to an exemplary embodiment of the present invention.

When a call signal of a menu for re-recognizing the USB storage device whose recognition state is removed from the video display device is input from the user, the video display device displays the USB storage device connected to the video display device, (S401).

The paging signal may include a hot key input signal of the video display device or the remote controller, or a selection signal of a menu item for re-recognizing the USB storage device among the menu items of the video display device.

In addition, the USB storage device list may include, in addition to the product name of the USB storage device connected to the video display device, a file name of the most recently accessed file, a file having the largest capacity, A first image including a file name or image data. This will be described in detail below with reference to FIG.

Also, according to the embodiment, the USB storage device list may be configured to include different information according to the setting of the user. That is, the video display device can change the information included in the USB storage device list based on the USB storage device list setting information.

Accordingly, the user can grasp the information about the data stored in the USB storage device whose recognition state is primarily eliminated, so that the USB storage device to be recognized can be clearly selected.

Next, in the USB storage device list, the USB storage device to be recognized is focused (S402).

According to an embodiment, the focusing step receives a movement signal of a selection cursor for selecting a USB storage device to be recognized from the USB storage device list from a user, and focuses the USB storage device on which the selection cursor is located.

Therefore, the user can change the USB storage device to be focused only by moving the selection cursor.

Next, the directory structure of the focused USB storage device is output to the display unit of the image display device (S403).

According to an embodiment, the directory structure may include a second image including information about a tree structure, a directory name, and a file name of a directory stored in the USB storage device. This will be described in detail below with reference to FIG.

According to an embodiment, information on the directory structure may be output using information stored in the image display device.

Accordingly, the user can more accurately recognize the USB storage device to recognize and recognize the details stored in the USB storage device to be recognized again.

Next, a selection signal of the USB storage device to be recognized is received from the USB storage device list from the user (S304).

According to an embodiment, when the selection signal is received from a user to an image display device, the file system of the selected USB storage device is mounted on the file system of the operating system of the image display device.

7 is a diagram illustrating a display screen 501 for controlling a USB device in an image display device according to an embodiment of the present invention.

According to an embodiment, the video display device can display a menu 504 for setting various functions of the video display device on the display unit.

The menu 504 may include menu items for setting various functions of the image display device. The menu item 503 may include a menu item 503 for removing the recognition status of the USB storage device connected to the image display device, And a menu item 506 for re-recognizing the removed USB storage device.

Also, when the user selects a predetermined menu item, the name 502 of the selected menu item can be displayed.

The user selects a menu item 505 to use predetermined contents in the video display device or to complete the setting of various functions of the video display device and removes the display screen 501 from the display portion of the video display device .

8 is a view illustrating a display screen 601 including a first image 602 for removing a USB storage device connected to an image display device according to an embodiment of the present invention.

The first image may include information on a file most recently accessed among the files stored in the USB storage device, information on a file having the largest capacity among files stored in the USB storage device, And may include image data or file names associated with information about the most accessed file of the file.

The information can be collected through the USB interface unit of the video display device through data communication between the USB storage device recognized by the current video display device and the video display device.

In addition, the information can be displayed in the form of thumbnail screens 603 and 604, and information including the product name 605 of the USB storage device and the product type 606 of the USB storage device can be displayed.

In addition, the information included in the first image may be changed according to user settings. This will be described in detail below with reference to FIG.

The user can input a predetermined signal through the user input interface unit and adjust the position of the pointer 607 on the display screen to focus the predetermined USB storage device.

That is, the user may input a predetermined signal to move the pointer 607, and when the pointer exists on the predetermined USB storage device, the second image related to the USB storage device where the pointer is located may be displayed. The second image will be described in detail below with reference to FIG.

9 is a view showing a display screen 701 including a second image of a USB storage device connected to an image display device according to an embodiment of the present invention.

According to an embodiment, the second image 702 may include information on a tree structure 703, a directory name 705, and a file name 706 of a directory stored in the USB storage device.

The information may be collected through data communication between the USB storage device and the image display period through the USB interface unit of the image display device, like the information included in the first image.

In addition, the second image may be displayed in a predetermined menu such as FIG. 8 or 11, including information on the focused USB storage device when a predetermined USB storage device is focused.

The user can grasp the information about the USB storage device to be removed or re-recognized more in detail through the second image as shown in FIG. 9, so that the reliability of the operation for removing or re- Can be remarkably increased.

10 is a view showing a display screen 801 including a confirmation menu for eliminating the recognition state of the USB storage device connected to the video display device according to the embodiment of the present invention.

According to the embodiment, the image display device displays a menu for removing the USB storage device as shown in FIG. 6, and when the second image of the focused USB storage device as shown in FIG. 9 is displayed, When the selection signal of the USB storage device to be selected is received, the confirmation menu 802 of FIG. 10 can be displayed.

The confirmation menu 802 may include image data and text data 803 related to the USB storage device selected according to the selection signal of the user.

For example, the image display device may display a thumbnail image of the file stored in the selected USB storage device and a device name 803 of the selected USB storage device in the confirmation menu 802. [

Through this, the user can confirm the USB storage device to be removed once more.

Also, when the confirmation menu item 804 is selected from the user, the image display device can perform an unmount operation to remove the file system of the selected USB storage device from the file system of the image display device.

11 is a view showing a display screen 901 including a first image for re-recognizing a USB storage device whose recognition state has been removed from an image display device according to an embodiment of the present invention.

The first image 902 may include information on a USB storage device whose recognition status is removed from the USB storage devices connected to the current image display device.

Accordingly, the image display device can search for information on the USB storage device whose recognition state has been removed from the image display device within a predetermined period, and configure the information included in the first image.

For example, if there are three USB storage devices whose recognition status is removed from the image display device within a predetermined period, the image display device searches for information on the three USB storage devices, Or image data or text data associated with the file that was stored in the file.

The first image may include thumbnail images 903 and 904 of files stored in the respective USB storage devices or information on the device types 905 of the respective USB storage devices.

In addition, the information included in the first image may be changed according to user settings. This will be described in detail below with reference to FIG.

The user can input a predetermined signal through the user input interface unit and adjust the position of the pointer 906 on the display screen to focus the predetermined USB storage device.

That is, the user may input a predetermined signal to move the pointer 906, and if the pointer is present on the predetermined USB storage device, the second image related to the USB storage device where the pointer is located may be displayed. The second image has been described in detail with reference to FIG.

12 is a view illustrating a display screen 1001 including a confirmation menu for re-recognizing a recognition state of a USB storage device whose recognition state is removed from an image display device according to an embodiment of the present invention.

According to the embodiment, the image display device displays a menu for re-recognizing the USB storage device as shown in FIG. 11, and displays the second image of the focused USB storage device as shown in FIG. When the selection signal of the USB storage device to be selected is received, the confirmation menu 1002 of FIG. 12 can be displayed.

The confirmation menu 1002 may include image data and text data 1003 related to the USB storage device selected according to the selection signal of the user.

For example, the image display device may display a thumbnail image of a file stored in the selected USB storage device and a device name 1003 of the selected USB storage device in the confirmation menu 1002.

Thus, the user can confirm the USB storage device to be recognized again.

Also, when the confirmation menu item 1004 is selected from the user, the image display device may perform a mount operation for re-recognizing the file system of the selected USB storage device in the file system of the image display device.

13 is a view showing a display screen including a setup menu of a USB storage device list connected to an image display device according to an embodiment of the present invention.

According to the embodiment, the user can preset the information included in the first image.

For example, the device name of the USB storage device, the file having the largest capacity among the files included in the USB storage device, the file having the highest access size among the files stored in the USB storage device, the file stored in the USB storage device Only the specific information in accordance with the user's setting among the information on the most recently modified file and the file type indicating whether the file stored in the USB storage device is video data, audio data, or text data, , Or the first image for re-recognizing the USB storage device.

According to an embodiment, the user selects information to be included in the first image in the menu 1102 for setting the first image. The selected menu item 1109 can be displayed separately from the unselected menu items.

In addition, when the selection of items to be included in the first image is completed, the user can select the confirmation menu item 1108 and store the setting information in the image display device.

FIGS. 14, 15, and 16 are diagrams showing a display screen 1201 including a USB storage device list according to the setting of the setting menu of FIG.

According to the embodiment, when the user selects and sets the USB device name 1103 in the menu 1102 of FIG. 13, the first image 1202 shown in FIG. 14 is displayed.

The first image 1202 may include image data and text data related to the device name of each USB storage device in accordance with the setting information.

For example, the first image 1202 may include a USB storage device 1203 having a device name of 'LG-USB MEMORY 2G', a USB storage device having a device name of 'SY-MEMORY CARD 1G' The device 1204 and the USB storage device 1205 having the device name 'YA USB HDD 100G'.

15, when the user selects one or more menu items 1104, 1105, and 1106 related to files stored in the USB storage device, 1 image 1206 may be displayed.

For example, the first image 1206 includes a thumbnail screen 1207 of a file stored in a USB storage device connected to the USB port 1 of the video display device, a thumbnail image 1207 of a file stored in the USB storage device connected to the USB port 2, Screen 1208 and a thumbnail screen 1209 of a file stored in a USB storage device connected to the USB port 3, respectively.

In addition, the thumbnails 1207, 1208, and 1209 may be changed in accordance with the menu item selected by the user in the menu 1102 of FIG.

For example, when the user selects the menu item 1106 of the most recently modified file in the menu 1102, the USB storage device connected to each USB port stores the most recently modified file Each thumbnail screen can be extracted and displayed.

In addition, according to the embodiment, when the user selects and sets the file type 1107 in the menu 1102 of FIG. 13, the first image 1213 shown in FIG. 16 is displayed.

The first image 1213 may include image data or text data related to a file type of a file stored in the USB storage device.

For example, it can be seen that audio data file 1210, text data file 1211, and video data file 1212 are stored in each USB storage device through the first image 1213.

Further, according to the embodiment, when a file having two or more different file formats is stored, the image data or the text data may be included.

As shown in FIG. 14 to FIG. 16, it is possible to easily identify a USB storage device to which a first image best suited for a user is set and removed or re-recognized.

14 to 16 illustrate only the first image according to the embodiment for removing the USB storage device from the image display device. However, in the case of the first image according to the embodiment for re-recognizing the USB storage device, 16 to 16 as shown in FIG.

Further, the image display apparatus and the operation method thereof according to the present invention are not limited to the configuration and method of the embodiments described above, but the embodiments may be applied to all of the embodiments Or some of them may be selectively combined.

Meanwhile, the operation method of the video display device of the present invention can be implemented as a code that can be read by a processor on a recording medium readable by a processor included in the video 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.

Claims (30)

A method for removing a recognition state of a USB storage device connected to a video display device,
Displaying a first image listing at least one USB storage device recognized by the image display device;
Receiving a movement signal of a selection cursor for selecting a first USB storage device to be removed from the USB storage device list in the displayed first image, and focusing the first USB storage device where the selection cursor is located;
Displaying a second image representing information stored in the focused first USB storage device; And
Controlling to remove the recognition status of the first USB storage device based on the displayed second image
The method of claim 1, further comprising: The method according to claim 1,
Wherein the step of controlling to remove the recognition state of the first USB storage device comprises:
Receiving, in the displayed first image, a selection signal of the first USB storage device; And
Unmounting the file system of the selected first USB storage device from the file system of the operating system of the video display device
The method of claim 1, further comprising: delete The method according to claim 1,
Wherein displaying the first image comprises:
Collecting information on a file most recently accessed among the files stored in each USB storage device;
Collecting information on a file having the largest capacity among the files stored in the USB storage device;
Collecting information on a file most accessed among the files stored in each USB storage device; And
Displaying, on the basis of the collected information, a thumbnail screen including image data or a file name
The method of claim 1, further comprising: delete delete The method according to claim 1,
Wherein the step of displaying a second image displaying information stored in the focused first USB storage device comprises:
Collecting information on a tree structure of a directory stored in the first USB storage device;
Collecting information on a directory name and a file name stored in the first USB storage device; And
Displaying a second image including the collected information
The method of claim 1, further comprising: delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete 1. A video display device for re-recognizing a USB storage device from which a recognized state has been removed,
A USB interface unit connected to at least one USB storage device;
Displaying a first image listing at least one USB storage device whose recognition status has been removed within a predetermined period of the connected USB storage device and displaying a second image including information stored in the focused USB storage device part;
A user input interface for receiving a signal for focusing the USB storage device in the first image and a selection signal for a USB storage device to be recognized in the second image; And
A control unit for controlling the display unit to display the first image and the second image through the display unit and to re-recognize the selected USB storage device when the selection signal is received through the user input interface unit,
A video display device 25. The method of claim 24,
Wherein,
A video display device for controlling the file system of the USB storage device to be mounted on the file system of the operating system of the video display device when the selection signal of the USB storage device is received, 25. The method of claim 24,
Wherein,
When the selection cursor movement signal for selecting the USB storage device in the first image is received through the user input interface unit, the control unit controls to display a second image including information stored in the USB storage device in which the selection cursor is located Video display device 25. The method of claim 24,
Further comprising a storage unit for storing information on the USB storage device,
Wherein,
The image display apparatus according to any one of claims 1 to 3, wherein the image display device is configured to search for information about the USB storage device whose recognition state has been removed within a predetermined time from the image display device, and to display a first image including the searched information through the display device delete delete 25. The method of claim 24,
Further comprising a storage unit for storing information on the USB storage device,
Wherein,
Information about a tree structure of a directory stored in the focused USB storage device and information about a directory name and a file name stored in the focused USB storage device, 2 image to be displayed on the display unit

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