KR20120018954A - Method for providing a network utilization service and image display device thereof - Google Patents

Abstract

PURPOSE: A network using service providing method and image displaying apparatus therefor are provided to minimize service transmission time by rapidly providing services in an IP(Internet Protocol) television. CONSTITUTION: A storage unit(380) stores channel map information. When an image display apparatus(100) is operated in a network access mode, a control unit(350) extracts the channel map information. The control unit creates a current channel map based on the extracted channel map information. A user interface unit(360) outputs a user interface including the current channel map according to the control unit.

Description

Method for providing a network utilization service and an image display device according to the method

The present invention relates to a method for providing a network using service and an image display apparatus according thereto. More particularly, the present invention relates to a video display device capable of quickly providing a network use service.

Content produced by a broadcasting company is transmitted through a radio wave transmission medium such as terrestrial, cable, or satellite broadcasting. The user can then watch the predetermined content through a receiver capable of receiving each of the delivery media.

In general, the video display device receives and displays the predetermined content for viewing by a user. The video display device includes a digital broadcast receiver such as a set-top box or a digital television, a video display terminal capable of receiving and displaying content from a broadcasting station.

In addition to the existing analog broadcasting, digital-based digital broadcasting technology has been developed and commercialized. Accordingly, various types of content services such as real-time broadcasting, contents on demand (COD), games, or news can be provided to users by using a network connected to each home in addition to the existing radio wave or wired cable media. In addition, the digital broadcast receiver can receive and display the above-described various contents services.

A service for providing content using the network may be referred to as a network use service. For example, an Internet Protocol TV (IPTV) service may be used. The network using service refers to a service that transmits various information services, video content, and broadcasting to an image display device of a user through an internet network. The Internet network may be implemented on various types of networks such as an optical cable network, a coaxial cable network, a fiber to the home (FTTH), a telephone network, and a wireless network based on an Internet Protocol (IP).

In addition, the network can be implemented in a wide variety of networks.

In the case of the service using the Internet network as described above, unlike general terrestrial broadcasting, the interactivity may be added, and the user may watch the content he / she wants to see at a convenient time.

However, in a typical video display device, when a user requests a network use service (for example, an Internet Protocol TV (IPTV) use service) and then the service is provided to the user, the user quickly turns on the video display device. It takes from tens of seconds to several minutes.

Alternatively, when the network use service is an IPTV service, a method of not completely powering off a module related to the provision of the network use service may be used in order to quickly provide the service of the IPTV. That is, by continuously supplying power to the module associated with the provision of the network usage service, it is possible to maintain the standby state where the network usage service can be provided at any time. However, such a method requires continuous power supply, and accordingly, power consumption of the video display device is inevitably increased.

Accordingly, there is a need to provide a method and a video display device accordingly while being able to provide a network use service quickly.

An object of the present invention is to provide a method for rapidly providing a network using service and an image display apparatus accordingly.

In addition, an object of the present invention is to provide a method for providing a network using a service that can minimize power consumption and to provide a video display device accordingly.

An image display apparatus according to an embodiment of the present invention may include: a storage unit for storing previous channel map information by accessing a network and receiving predetermined content; A controller configured to read the previous channel map when the image display device is booted in a network access mode, and generate a current channel map based on the read previous channel map; And a user interface unit configured to output a user interface including the current channel map under the control of the controller.

Preferably, the user interface unit receives a predetermined item included in the current channel map, and the controller may tune a channel corresponding to the selected predetermined item and control the output of the tuned channel.

Preferably, the storage unit may include a first storage unit that stores boot information including the previous channel map information and authentication related information of a network usage service.

Preferably, the controller may control power to be supplied to the first storage unit of the storage unit when the image display device is booted in the network connection mode.

Preferably, the control unit authenticates the provision of the network using service based on the authentication related information in the network connection mode, and when the authentication is completed, supply the power only to the first storage unit to integrity of the first storage unit. In this case, booting according to the network connection mode may be started accordingly.

Preferably, the controller may control the power to be supplied to the entire storage unit after generating the current channel map.

Preferably, when a power off command is input, the controller may store an operation mode of the video display device when the power off command is applied and a channel map existing when the power off command is applied to the first storage unit.

Preferably, when the power-on command is input, the controller operates the video display device according to the operation mode when the power-off command is applied, and when the operation mode is the network connection mode, based on the stored previous channel map. The current channel map may be generated.

Preferably, the controller may control the network initialization in the network connection mode to be performed after the boot loader is executed before the boot start according to the network connection mode.

Preferably, the controller determines whether there is an error in the stored previous channel map when booting the video display device according to the network access mode, and if it is determined that there is no error in the previous channel map, the previous channel map Based on the current channel map can be generated.

Preferably, when it is determined that there is an error in the previous channel map, the controller is connected to a server that provides electronic program guide (EPG) information to receive service information (SI), and based on the service information. The current channel map may be generated.

According to an aspect of the present invention, there is provided a method of providing a network using service, the method comprising: storing previous channel map information; Reading the previous channel map when the image display device is booted in a network access mode, and generating a current channel map based on the previous channel map; And outputting a user interface including the current channel map.

According to an embodiment of the present invention, a method for providing a network using service and a video display device according thereto may minimize the time until the network using service is provided to a user after turning on the video display device.

In addition, the method for providing a network using service and an image display apparatus according thereto according to an embodiment of the present invention may minimize power supply required to provide a network using service, thereby minimizing power consumption of the corresponding image display apparatus.

1 is a diagram for describing an image display device according to an exemplary embodiment.
2 is a diagram illustrating an image display system including an image display device according to an exemplary embodiment.
3 is a block diagram illustrating a video display device according to an embodiment of the present invention.
4 is a flowchart for describing an operation of an image display device according to an exemplary embodiment.
FIG. 5 is a diagram illustrating a channel map generated in step 430 of FIG. 4 and output in step 460.
FIG. 6 is a diagram for describing operation 470 of FIG. 4.
7 is a block diagram illustrating in detail the storage of FIG. 3.
FIG. 8 is a flowchart illustrating an operation of an image display device according to an exemplary embodiment of the present invention shown in FIG. 4 in more detail.

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

The suffixes "module" and "unit" for components used in the following description are merely given in consideration of ease of preparation of the present specification, and do not impart any particular meaning or role by themselves. Therefore, the "module" and "unit" may be used interchangeably.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described. At this time, the configuration and operation of the present invention shown in the drawings and described by it will be described as at least one embodiment, by which the technical spirit of the present invention and its core configuration and operation is not limited.

The terms used in the present invention have been selected as widely used general terms as possible in consideration of the functions in the present invention, but may vary according to the intention or custom of the person skilled in the art or the emergence of new technologies. In addition, in certain cases, there is also a term arbitrarily selected by the applicant, in which case the meaning will be described in detail in the description of the invention. Therefore, it is intended that the terms used in the present invention should be defined based on the meanings of the terms and the general contents of the present invention rather than the names of the simple terms.

1 is a diagram for describing an image display device according to an exemplary embodiment.

Referring to FIG. 1, the video display device 100 according to an exemplary embodiment of the present invention refers to a broadcast receiver capable of receiving digital broadcast content transmitted through a network and providing the same to a user. The video display device 100 may provide a digital television, a smart television, an IPTV set-top box, a homenet gateway, an IPTV embedded TV that may provide a network service. And all video display terminals capable of receiving and displaying content from a broadcasting station or the like.

Compared to analog broadcasting, such digital broadcasting is more resistant to noise, has a lower data loss, and transmits additional error correction information, which is advantageous for error correction, and provides a high resolution and clear picture. In addition, unlike analog broadcasting, digital broadcasting is an interactive service capable of receiving a broadcasting service from a broadcasting station and providing information to the broadcasting station.

Referring to FIG. 1, the video display device 100 may receive and display a broadcast program transmitted from a terrestrial, satellite, or cable broadcasting station 110. In addition, the video display device 100 may receive and display predetermined content from a content provider (CP) server or a service provider (SP) server that provides predetermined content through the network server 120. . That is, the video display device 100 according to an embodiment of the present invention may communicate with the broadcasting station 110 or the network server 120. In addition, the image display apparatus 100 and the network server 120 are connected through a predetermined network, and an example of the network may be an internet network.

The video display device 100 may receive a broadcast signal including a video signal transmitted from the broadcast station 110. The video display device 100 may process a video signal, an audio signal, or a data signal included in a broadcast signal so as to be suitable for outputting from the video display device 100. The video or audio based on the processed video signal can be output.

The image display apparatus 100 may communicate with the network server 120. The network server 120 is a communication network device capable of transmitting and receiving signals with the video display device 100 through any network. For example, the network server 120 may be a mobile phone terminal that may be connected to the video display device 100 through a wired or wireless base station. In addition, the network server 120 may be a device capable of providing content to the video display device 100 through an Internet network. The content provider CP or the service provider SP may provide content to the video display device 100 using a network server.

2 is a diagram illustrating an image display system including an image display device according to an exemplary embodiment.

An image display system (shown in FIG. 2) may be constructed in order for the image display apparatus 100 to receive a predetermined broadcast program or predetermined content through the broadcasting station 110 or the network server 120. Various system architectures may exist as a method of transmitting content transmitted through digital broadcasting or digital data.

For example, the video display system to be described below with reference to FIG. 2 is a system capable of providing various contents using a network, and is largely a content production and provision server (210) and (220), a network (230), and a user. (Customer) 240 may be configured. Here, the content production and provision server may include a server 210 of a content provider and a server 220 of a service provider. For example, the video display system may be an Internet Protocol TV (IPTV) system, in which case an internet network may be used.

Referring to FIG. 1, in view of providing a content service, the video display system includes a content provider (CP) 210, a service provider (SP) 220, and a network provider. NP) 230 and the user 240.

The content provider 210 produces and provides various contents. As shown in FIG. 2, the content provider includes a terrestrial broadcaster, a cable system operator or a cable system multiplexer, a satellite broadcaster, and an internet broadcaster. There may be an internet broadcaster.

The service provider 220 provides a service package of contents provided by the content provider. For example, the service provider of FIG. 1 packages a first terrestrial broadcast, a second terrestrial broadcast, a cable MSO, satellite broadcast, various Internet broadcasts, and provides the same to a user.

The network provider 230 provides a network for providing the service to the user. The user may build a home network end user (HNED) to receive the service.

In addition, the server 220 of the service provider may have various functions such as service discovery and selection server, streaming server, contents guide information server, customer information server, and payment information server. It may be composed of servers in charge of.

Among the servers, the streaming server transmits video data encoded in the stored Moving Picture Experts Group (MPEG) 2, MPEG4, etc. to the user through a network. As a protocol for the transmission, a Real-Time Transport Protocol (RTP), a RTP Control Protocol (RTP), or the like may be used.

In case of using Real-Time Streaming Protocol (RTSP), video stream playback can be controlled to some extent through a function called network trick play such as pause, replay, and stop. . The protocols are one example and other real time transmission protocols may be used depending on the implementation.

The content guide information server is a server that provides information on the various contents provided. The content guide information is information corresponding to electronic program guide (EPG) information and includes various information about content. The content guide information server stores content guide information data, and provides the stored data to the receiver.

Among the servers, the information server related to service discovery and selection may include access information, playback information, etc. for servers providing various content services such as broadcasting, contents on demand (COD), and games, etc. 100).

In addition, the network 230 may be formed of an internet-based network and gateways. For example, the Internet-based network may use various types of networks such as an optical cable network, a coaxial cable network, a fiber to the home (FTTH), a telephone network, a wireless network, and the like based on IP. In addition to general data transfer, the gateway may perform multicast group management and quality of service (QoS) management using protocols such as Internet Group Management Protocol (IGMP).

In the case of a video display system using a network, various contents of the Internet may be provided as well as various existing broadcasting contents. That is, the user can provide various broadcasting contents such as terrestrial broadcasting, cable broadcasting, satellite broadcasting, personal broadcasting, various internet video contents, data contents other than video, and the like. The contents may be provided in real time or may be provided on demand. In the present invention, the digital broadcast is used as a concept that includes not only broadcasts transmitted through terrestrial waves, satellites and cables, but also broadcasts transmitted through Internet networks.

Conditional access, content protection, or the like may be used as a means for protecting content transmitted from the video display system. As one example for the above-mentioned restriction reception or content protection, a method such as using a cable card or a downloadable conditional access system (DCAS) may be used.

3 is a block diagram illustrating a video display device according to an embodiment of the present invention.

Referring to FIG. 3, the image display device 100 according to an exemplary embodiment of the present invention may include a signal input unit 310, a signal processor 320, a controller 350, an OSD generator 355, and a user interface. A unit 360 includes a user interface unit 360, a storage unit 380, and a power supply unit 390. The display unit may further include a display unit 370.

When the image display apparatus 100 is a digital television, as illustrated in FIG. 3, the image display apparatus 100 includes a display unit 370. In addition, when the image display apparatus 100 is a set-top box, the image display apparatus 100 does not include a display unit 370. In this case, the display unit is an image display apparatus. It is connected to the external device 100 and is provided separately, and receives and displays an image signal output from the image display device 100.

In addition, the image display device 100 may further include other necessary components in addition to the configuration shown in FIG. 1.

The signal input unit 310 receives predetermined content from a content provider (CP) such as a broadcasting station, and may include a tuner 311 and a network interface unit 313.

The tuner 311 selectively receives a broadcast signal transmitted in the form of a radio frequency (RF) signal through a channel of a predetermined frequency band. That is, it selectively receives a broadcast signal transmitted from a content producer such as a broadcasting station and including predetermined content. Here, selecting a predetermined frequency band corresponding to the predetermined channel in order to receive a program of the predetermined channel is called tuning.

The network interface unit 313 receives a signal including predetermined content from a content provider (CP) or a service provider (SP) through a network. Hereinafter, a signal received by the signal input unit 310 is called an image signal.

The signal processor 320 converts the received image signal into data that can be displayed by the image display apparatus 100 and outputs the converted image signal. Specifically, demodulating the received video signal, demultiplexing and decoding the demodulated signal, and performing signal processing such as error correction and signal quality improvement.

In more detail, the signal processor 320 may add additional information including audio, video, or PSI (Program Specific Information) data to an image signal transmitted in a transport stream (TS) packet form. Demultiplexing is performed, and each demultiplexed data is decoded. Here, the additional information includes service information (SI). The service information (SI) is composed of additional information related to the serviced content (e.g., program name, program overview, program actor, program broadcast time, etc.), program specific information (PSI) data, and program and service (PSIP). Information Protocol (DC) data, DVB-SI (Service Information) data, and the like.

The controller 350 controls the overall operation of the image display apparatus 100. In detail, the control is performed such that an image signal including predetermined content is displayed on an image screen. Detailed operations of the controller 350 will be described in detail with reference to FIGS. 4 and 8 below.

The user interface unit 360 generates and outputs a control menu to be provided to the user as user interface (UI) data, or receives a predetermined request or predetermined information from the user.

In detail, the user interface unit 360 outputs a user interface including the current channel map in response to the channel map output request of the controller 350. In addition, a predetermined item (eg, a predetermined channel) included in the current channel map may be selected. Here, the output of the channel map may be automatically requested and output when entering the network access mode, or may be output according to a user's request. The channel map refers to a channel selection list that allows a user to select a predetermined channel, including a plurality of channels that can be provided by the network usage service. The current channel map is a channel map created and output in the current operation cycle. The previous channel map refers to a channel map created and output in an operation period before the current operation period.

The user interface data output from the user interface unit 360 may be converted into OSD (On Screen Data) data through the OSD generator 355. In addition, the user interface data may be directly transmitted to the display unit 370 and displayed on a graphical user interface (GUI).

The OSD generator 355 generates predetermined OSD (On Screen Data) data and outputs the same to the display unit 370. In detail, the OSD generator 355 may generate and output user interface data output from the user interface 360 as OSD data. In addition, under the control of the controller 350, various types of information to be provided to the user may be generated in the form of OSD data.

The display unit 370 displays an image signal transmitted from the signal processor 320 on an image screen. In addition, the OSD data or the user interface data output from the user interface 360 or the OSD generator 355 is displayed on the entire or predetermined region of the video screen.

The storage unit 380 may store various pieces of information necessary for a display operation under the control of the controller 350. In detail, the storage unit 380 may store previous channel map information. Here, when a power off command is input to the image display device 100 immediately before the current time point, the control unit stops the operation performed by the image display device 100 according to the power off command and then powers off the control unit. The channel map generated at 350 is the previous channel map.

In addition, the storage 380 may be partitioned into at least two partitions. Here, the first storage unit, which is one block, may store boot information according to a network access mode. Here, the booting information may include previous channel map information and authentication related information of a network using service.

The detailed configuration of the storage unit 380 will be described in detail later with reference to FIG. 7.

The power supply unit 390 supplies power to each component block of the image display apparatus 100 so that the image display apparatus 100 may perform a predetermined operation. In detail, the power supply unit 390 may selectively supply power to each block of the storage unit 380 under the control of the control unit 350, and booting according to the network connection mode is completed after entering the network connection mode. Power may be preferentially supplied to the first reservoir until

4 is a flowchart for describing an operation of an image display device according to an exemplary embodiment.

Referring to FIG. 4, under the control of the controller 350, the previous channel map is stored in the storage 380 (S410). Operation 410 may be performed in the first storage unit of the storage unit 380 under the control of the controller 350.

In this regard, the controller 350 parses and decodes the service information (SI) demultiplexed from the received video signal, prepares a database of the service information, and stores it in the storage unit 380. The creation of the database about the service information may be performed while the network connection mode is performed after the booting according to the network connection mode is completed, or while the TV mode is performed by changing from the network connection mode to the TV mode. Here, the database regarding the service information may include a channel map composed of channels provided by the network using service.

In addition, a period of time after the user turns on the video display device 100 and inputs a turn-off command is called an operation cycle. The previous channel map refers to a channel map created in a previous operation cycle which is a ground operation cycle of the current operation cycle of the video display device 100.

When the power off command is input to the control unit 350, the control unit 350 stores the created channel map as a previous channel map in a first storage unit, which is a storage space of the storage unit 380. The storage operation of the previous channel map may be updated each time a power off command is input.

After the operation 410 is performed, the image display apparatus 100 may be powered off, and then a power-on command may be input to turn on the image display apparatus 100. In operation 415, the controller 350 may enter a network access mode at the request of a user or at the user's own setting of the image display apparatus 100. Accordingly, booting according to the network connection mode is started (step 415).

Here, an example of the network access mode may be an IPTV mode for receiving an IPTV service. In this case, the booting according to the network access mode may be an IPTV booting, and the network using service may be an IPTV service.

In detail, the control unit 350 performs an operation of a network access mode for using contents received through a TV mode or a network (for example, an Internet network) for watching a terrestrial wave or a cable broadcast according to a user's request. Do. That is, the controller 350 controls the video signal transmitted through the channel selected by the user in the TV mode to be displayed. In the network connection mode, the controller 350 accesses a predetermined network server through the network interface unit 313 and the content selected by the user is displayed. Control the output.

In detail, the controller 350 enters the network connection mode and boots the video display device 100 according to the network connection mode. For example, the controller 350 may enter the IPTV mode and boot the IPTV.

The controller 350 may determine whether there is an error in the previous channel map stored in the first storage unit when the image display apparatus 100 is booted according to the network access mode (operation 420). In this case, the error is when the previous channel map is incompletely created or when the previous channel map is stopped before completion and thus the previous channel map is not completely created.

As a result of the determination in step 420, if it is determined that there is no error in the previous channel map, the controller 350 reads out the previous channel map stored in the first storage unit and generates a current channel map based on the previous channel map (430). step).

In this case, in order to perform step 430, the control unit 350 starts booting according to the network connection mode and selectively supplies power only to the first storage unit of the storage unit 380 until the booting is completed. 390 can be controlled. Accordingly, integrity is checked for the first storage unit from the time when the booting starts. When the integrity check for the first storage unit is completed, information (eg, a previous channel map, etc.) necessary for the booting (booting according to the network connection mode) may be read.

In the present application, the integrity check time required for booting can be minimized by supplying power only to the first storage unit until the booting is completed to check the integrity of the storage space. Accordingly, booting time according to the network connection mode can be minimized.

The controller 350 controls power to be supplied to the entire storage unit 380 after the booting according to the network connection mode is completed and the current channel map is generated. Accordingly, after the current channel map is generated, the integrity of the storage space is checked throughout the storage unit.

In order to provide a network using service, a large variety of contents should be downloaded and stored, and a large video file must be downloaded and stored from a service provider providing a network using service for a video on demand (VOD) service. In addition, it is required to download and store various application programs that can be provided by the network service, and to continuously transmit and receive operation information while providing the network service to and from the provider server of the network service. In addition, temporary files or recent files may be stored for a period of time without being deleted immediately.

Accordingly, an image display apparatus capable of providing a network using service should generally include a storage unit which is a large memory device. For example, one model of an IPTV set top box capable of providing a network usage service includes a storage having a memory capacity of 160 Gbytes.

In the conventional video display device, when the video display device is powered on (or turned on) and enters the network connection mode, the integrity check time of the storage unit is very long by checking the integrity of the storage unit as a whole to provide a network utilization service. . In addition, since the channel map is newly generated after entering the network connection mode, a considerable time is required for the channel map generation time. As a result, the boot time was inevitably increased, which took several minutes.

Conventionally, in order to solve the problem of a long booting time, a method of maintaining a state in which a network service can be provided immediately without powering off the video display device even when a power-off command is input to the video display device is used. . This method requires continuous supply of power to the storage unit, and accordingly, power consumption of the image display device is inevitably increased.

The present invention stores the previous channel map (step 410) and generates the current channel map based on the previous channel map (step 430), so that after the power off command is input, the network use service is quickly provided to the user without continuous power supply. Can provide.

In addition, boot information including power supply to only the first storage unit, which is one storage space of the storage unit at the time of booting according to the network connection mode, and previous channel map information stored in the supplied first storage unit (depending on the network connection mode). By reading information necessary for booting the video display device) and using it for booting according to the network connection mode, power consumption can be minimized.

If it is determined that there is an error in the previous channel map, the control unit 350 accesses a server providing EPG (Electronic Program Guide) information among the service provider's servers through the network interface unit 313 (step 440). Here, the server providing the EPG information may be the content guide information server described above with reference to FIG. 2.

The control unit 350 receives service information (SI) from the EPG providing server in step 445.

In operation 450, the controller 350 generates the current channel map based on the received service information. In detail, the controller 350 parses the EPG information from the service information SI and stores the EPG information in the storage unit 380 (specifically, the service information database unit 721 of FIG. 7). Then, a channel map is created using the EPG information.

The controller 350 controls the user interface unit 360 to output a user interface including the current channel map (step 460). When the user interface is output, the user is substantially in a state of using the network service, and accordingly, booting according to the network connection mode is completed.

When a predetermined item included in the channel map is selected and input through the user interface, the controller 350 tunes a channel corresponding to the selected predetermined item in step 470.

In addition, the controller 350 may control to output an image signal transmitted through the tuned predetermined channel. Accordingly, the network use service is provided (step 480), and the user can watch the image or the content according to the network use service.

In addition, the controller 350 may start network initialization in the network connection mode immediately after execution of the boot load (boot loader for booting according to the network connection mode) or simultaneously with execution of the boot loader.

For example, the controller 350 may start network initialization immediately after executing the IPTV boot loader for booting the IPTV or simultaneously with the execution of the IPTV boot loader. In addition, according to the execution of the IPTV boot loader, network initialization of the network connection mode may be started before the IPTV booting starts.

4 is a flowchart for describing an operation of an image display device according to an exemplary embodiment.

Referring to FIG. 4, a user interface output in step 460 is illustrated. The user interface may be generated by the OSD 510 and displayed on a predetermined area on the display screen 500 of the display unit 370.

The user interface 510 consists of a current channel map, and the current channel map may include a channel list 520 that can be provided by a network usage service. In addition, the user interface 510 may be configured to enter services (eg, a service for reproducing predetermined content (reservation playing service), a service using an Internet server, a VOD service, etc.) that the network using service can provide. It may further include a key 530.

The user may use the network usage service by using the current channel map output through the user interface 510. In detail, the user may move to a predetermined channel using the current channel map, and may easily enter a desired detailed service item.

FIG. 6 is a diagram for describing operation 470 of FIG. 4.

If the current channel map is generated based on the previous channel map (step 430), since the channels included in the output current channel map are not channels updated based on the current time point, a channel that is not currently subscribed or currently unavailable Can be.

Referring to FIG. 6, when the channel tuned in operation 470 is a channel that is not currently available, the controller 350 may control the OSD 610 notifying that channel switching is impossible to be output on the display screen 600. . In addition, the OSD 610 may further include a key 615 requesting to try again and a key 620 requesting to show the channel list 520 shown in FIG. 5 again.

In addition, the channel item that is not currently available in the channel list 520 may be displayed in a color or a form that is distinguished from the currently available channel item. For example, if CH6 525 is a channel that is currently unavailable, CH6 will be displayed in dark colors and other channels will be displayed in bright colors, making it easier for users to recognize channels that are currently unavailable. have.

In this case, when the channel map is newly created and generated after the booting according to the network connection mode is completed, the controller 350 may use an available message (for example, a message indicating that the channel on which the OSD 610 has been output is available). Can be controlled to be output to the OSD so that the user can use the unavailable channel again after booting according to the network connection mode is completed.

In addition, by supplying power only to the first storage unit, which is part of the storage unit 380, and not to other storage spaces, applications stored in storage spaces other than the first storage unit (for example, JAVA application). In this case, when the tuning of the channel that can be displayed after the corresponding application is executed is requested, the controller 350 may control the OSD shown in FIG. 6 to be output. In this case, when the booting of the IPTV is completed and power is supplied to other storage spaces except the first storage unit of the storage unit 380 to run the corresponding application, a channel using the application may be tuned. .

7 is a block diagram illustrating in detail the storage of FIG. 3.

Referring to FIG. 7, the storage unit 380 may be partitioned into the first storage unit 710 and other storage spaces as described above. In detail, the storage unit 380 may be divided into a first storage unit 710, a second storage unit 720, and a third storage unit 380.

The first storage unit 710 stores booting information according to a network access mode including the foregoing channel map information. In addition, when the power-on command is input, the first storage unit 710 may store an OS program, a boot loader, and the like necessary for initially driving the video display device 100.

Here, the booting information (for example, IPTV booting information) is composed of information necessary for booting the video display device according to the network access mode to make the user use the network using service. In addition, the boot information may include authentication related information of the network usage service for initiating the network usage service. The authentication related information of the network use service may include digital right management (DRM) information or an entitlement management message (EMM). Here, the DRM information or the EMM information is data used to determine the authority of the user, and is information used to determine whether the user who uses the video display device 100 has a right to use a network service.

As described above, the controller 350 may control the power supply unit 390 to control power so that only the first storage unit 710 is preferentially supplied to the network access mode when the booting process starts. When booting is performed and creation of the current channel map is completed, control may be continued to supply power to other storage spaces 720 and 730.

The second storage unit 720 stores content data or service information necessary for providing a network use service. The second storage unit 720 may include a content database unit 723 and a service information database unit 721.

The content database unit 723 allocates a content channel corresponding to a predetermined content, determines index data corresponding to the content, and stores the index data in association with the allocated content channel information.

In addition, the content database unit 430 may store the authentication information for the Internet service list and the server account. Here, the Internet service list is a list including information on the content provider (CP) or service provider (SP) that provides the Internet service. For example, the Internet service list may include at least one of a name of a server, access information of a server, or guide information about a service provided by the server. Here, the access information of the server may be any one of an internet address and a uniform resource locator (URL).

The controller 350 may periodically update information stored in the content database unit 723 (for example, an Internet service list and authentication information about a server account, a server access information, a content provider list, and the like). .

The service information database unit 721 stores the service information (SI) decoded by the signal processing unit 320 in the form of a predetermined database. In detail, the channel map information may be periodically generated and stored.

The controller 350 may periodically update information (eg, channel map information) stored in the service information database unit 721.

The third storage unit 730 may store various programs, recorded programs, and the like used to drive the image display apparatus 100.

FIG. 8 is a flowchart illustrating an operation of an image display device according to an exemplary embodiment of the present invention shown in FIG. 4 in more detail.

Referring to FIG. 8, the image display apparatus 100 according to an exemplary embodiment may perform additional operations 815, 820, 840, 845, 850, 86, or 870 in addition to the operations described with reference to FIG. 4. You can do more. Here, the operations 810 and 830 block correspond to the operations 410 and 405 of FIG. 4, respectively, and thus detailed description thereof will be omitted.

In operation 810, the controller 350 may store an operation mode and a previous channel map of the image display apparatus 100 at the time when the power-off command is input (operation 810). Here, the operation mode may include a TV mode for watching TV and a network connection mode using a network using service.

The controller 350 receives a power on command input through a remote controller (not shown) or the like (step 815).

The controller 350 may automatically enter a predetermined mode according to the operation mode stored in the last power off (operation mode stored in operation 810) (operation 820).

If the operation mode stored in step 810 is the network connection mode, the network access mode is entered. When entering the network access mode, the controller 350 is authenticated to provide the network using service based on authentication related information (EMM or DRM, etc.) for receiving the network using service stored in the first storage unit 710, and uses the network. If the provision of the service is authenticated, power may be supplied only to the first storage unit 710 to check the integrity of the first storage unit 710 and thus start booting according to the network connection mode (step 831).

If the operation mode stored in the last power off is the TV mode, the controller 350 enters the TV mode (step 840). Accordingly, if there is a channel being watched at the last power off, the controller 350 tunes the channel.

The controller 350 controls the user to watch TV by outputting a program transmitted through the tuned channel (step 845).

The controller 350 may receive a power off command (operation 850).

When the power off command is input, the controller 350 stores the current operation mode and the current channel map in the first storage unit 710 (step 860). Here, the current operation mode and the current channel map stored in step 860 may be referred to as the previous operation mode and the previous channel map in step 810 when the power-on command is subsequently input.

 When the storage of step 860 is completed, the controller 350 turns off the power to each component block of the image display apparatus 100 to completely turn off the image display apparatus 100 (step 870).

The method for providing a network using service according to an embodiment of the present invention stores previous channel map information.

When booting the video display device in the network access mode, it may be determined whether there is an error in the stored previous channel map.

If it is determined that there is no error in the previous channel map, a current channel map is generated based on the previous channel map.

In addition, the method of providing a network using service according to an embodiment of the present invention includes the steps of outputting a user interface including the current channel map, receiving a selection of a predetermined channel included in the current channel map through the user interface, And tuning and outputting the predetermined channel.

Since the method for providing a network using service according to an embodiment of the present invention has the same technical spirit and operation configuration as the video display device according to an embodiment of the present invention described above with reference to FIGS. 1 to 8, the detailed description thereof will be omitted. .

On the other hand, the terms used in the present invention (terminology) are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the skilled person in the relevant field, the definitions of which are used throughout the present invention. It should be based on.

The present invention is not limited to the above-described embodiments and may be variously modified and changed by those skilled in the art, which are included in the spirit and scope of the present invention as defined in the appended claims.

310: signal input unit
320: signal processor
350: controller
355: OSD generation unit (On Screen Display generator)
360: user interface unit
370: display unit
380: storage unit
390: power supply

Claims (21)

A video display device capable of receiving predetermined content by accessing a network,
A storage unit for storing previous channel map information;
A controller configured to read the previous channel map when the image display device is booted in a network access mode, and generate a current channel map based on the read previous channel map; And
And a user interface unit configured to output a user interface including the current channel map under the control of the controller. The method of claim 1,
The user interface section
A predetermined item included in the current channel map is selected,
The control unit
And tune the channel corresponding to the selected predetermined item and control the output of the tuned channel. The method of claim 1, wherein the storage unit
And a first storage unit configured to store booting information including the previous channel map information and authentication related information of a network access service. 4. The apparatus of claim 3, wherein the control unit
And controlling power to be supplied to the first storage unit of the storage unit when the image display apparatus is booted in the network connection mode. The method of claim 4, wherein the control unit
In the network connection mode, the network service is authenticated based on the authentication related information. When the authentication is completed, the power is supplied only to the first storage unit to check the integrity of the first storage unit. And booting according to the network access mode. The method of claim 4, wherein the control unit
And after the current channel map is generated, the power is controlled to be supplied to the entire storage unit. The method of claim 4, wherein the control unit
And when a power off command is input, an operation mode of the video display device when the power off command is applied and a channel map existing when the power off command is applied are stored in the first storage unit. 8. The apparatus of claim 7, wherein the control unit
When the power on command is input, the video display device is operated according to the operation mode when the power off command is applied.
And if the operation mode is the network access mode, generating the current channel map based on the stored previous channel map. The method of claim 1, wherein the control unit
And the network initialization in the network connection mode is controlled to be performed after the boot loader is executed before booting in accordance with the network connection mode. The method of claim 1, wherein the control unit
When booting the video display device according to the network access mode, it is determined whether there is an error in the stored previous channel map, and if it is determined that there is no error in the previous channel map, the current channel map is based on the previous channel map. And a video display device. The method of claim 10, wherein the control unit
If it is determined that there is an error in the previous channel map, the server accesses a server providing electronic program guide (EPG) information, receives service information (SI), and generates the current channel map based on the service information. And a video display device. A method of providing a network using service in a video display device,
Storing previous channel map information;
Reading the previous channel map when the image display device is booted in a network access mode, and generating a current channel map based on the previous channel map; And
And outputting a user interface including the current channel map. The method of claim 12,
Selecting a predetermined item included in the current channel map through the user interface; And
And tuning and outputting a channel corresponding to the predetermined item. The method of claim 12, wherein storing the previous channel map information comprises:
And storing booting information including the previous channel map information and authentication related information of the network access service in a first storage unit, which is a separate storage space included in the storage unit of the video display device. How to Provide Your Services. The method of claim 14,
And supplying power only to the first storage unit of the storage unit when the image display device is booted according to the network access mode. 16. The method of claim 15,
Authenticating the provision of the network using service based on the authentication related information in the network access mode;
Supplying power only to the first storage unit
When the authentication is completed, supplying the power only to the first storage unit to confirm the integrity of the first storage unit and to start the boot according to the network connection mode accordingly, comprising the Way. The method of claim 14, wherein storing the previous channel map information comprises:
And when a power off command is input, storing an operation mode of the video display device when the power off command is applied and a channel map existing when the power off command is applied to the first storage unit. How to provide network services. The method of claim 17,
Operating the video display device according to the operation mode when the power-off command is applied when a power-on command is input,
Generating the current channel map
And generating the current channel map based on the previous channel map which is the channel map stored when the power off command is applied when the operation mode is the network connection mode. The method of claim 12,
And performing a network initialization after the boot loader is executed before booting according to the network access mode. The method of claim 12,
Determining whether there is an error in the stored previous channel map;
Generating the current channel map
If it is determined that there is no error in the previous channel map, generating a current channel map based on the previous channel map. The method of claim 20,
If it is determined that there is an error in the previous channel map, accessing a server providing electronic program guide (EPG) information and receiving service information (SI); And
And generating the current channel map based on the service information.

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