KR20100031191A - A display apparatus and method for controlling thesame - Google Patents

A display apparatus and method for controlling thesame Download PDF

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Publication number
KR20100031191A
KR20100031191A KR1020080090162A KR20080090162A KR20100031191A KR 20100031191 A KR20100031191 A KR 20100031191A KR 1020080090162 A KR1020080090162 A KR 1020080090162A KR 20080090162 A KR20080090162 A KR 20080090162A KR 20100031191 A KR20100031191 A KR 20100031191A
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KR
South Korea
Prior art keywords
processor
content
application program
speaker
display unit
Prior art date
Application number
KR1020080090162A
Other languages
Korean (ko)
Inventor
배혜진
이호재
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020080090162A priority Critical patent/KR20100031191A/en
Publication of KR20100031191A publication Critical patent/KR20100031191A/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/488—Data services, e.g. news ticker
    • H04N21/4882—Data services, e.g. news ticker for displaying messages, e.g. warnings, reminders
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
    • H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

PURPOSE: An image display device and a method for controlling the same are provided to variously execute contents through multi-process by downloading the contents. CONSTITUTION: An image display device comprises: a first processor(500) which outputs sound or image through a display unit or speaker; and a second processor(600) execute IPC(interprocess communication) with the first processor. The first processor controls process of broadcast signal and operation of the display unit and speaker. The second process receives application program from the first processor.

Description

Image display apparatus and control method {A display apparatus and method for controlling thesame}

The present invention relates to a video display device having a multi-processor structure in which a processor for processing a broadcast signal of a video display device and a processor for executing an application program in the video display device are formed.

With the development of digital broadcasting technology and the trend of digital convergence, the functions of digital broadcasting receivers are gradually being advanced.

Digital video display devices have a built-in function for using external content (for example, mp3 or jpeg images) in software in the device.

That is, since the external content functions to be provided to the user are determined at the product shipment stage of the video display device, in this case, the user may not have the desired content function embedded in the video display device, which is necessary from the user's point of view. The result is that you pay for missing features.

In addition, the manufacturer of the image display device has a problem in that additional manufacturing costs are required to apply a function that the user does not want in the device, and ultimately the product price of the image display device increases.

Accordingly, in an image display apparatus capable of embedding various functions according to the advancement of technology, a method for properly configuring a content function desired by a user is required.

According to the present invention, in order to allow a user to freely select and execute contents that can be embedded in a video display device, a multi-processor for managing the contents may be distinguished from a processor that is in charge of image processing and audio processing for a broadcast signal. An object of the present invention is to propose a display device and a control method thereof.

An image display device according to an embodiment of the present invention is a processor that processes a broadcast signal received through a tuner and outputs an image or an audio signal through a display unit or a speaker. A first processor controlling an operation; And a second processor that performs IPC (InterProcess Communication) with the first processor, the second processor receiving the application program from the first processor to execute the application program.

In addition, the video display device according to the present embodiment includes a first processor for performing a signal processing so that the broadcast signal is output through the display unit or the speaker of the video display device; And a second processor dependent on the first processor, the second processor communicating with the first processor to execute an application program and output a result of the execution through the display unit or the speaker.

According to another aspect, a method of controlling an image display device includes receiving a content execution request message by a user by a first process; Authenticating the content by the first process, and generating a second process if the content is valid; Forming an IPC connection between the second process and the first process; Transferring the content from the first processor to a second process for execution of the content; And executing the content by the second process.

According to the proposed video display device and its control method, the DTV, which is a video display device, can be variously executed through multi-process after downloading the content requested by the user together with the basic function of receiving and outputting broadcast signals. Therefore, there is an advantage that can provide a video display device suitable for the user's preference.

Hereinafter, with reference to the accompanying drawings for the present embodiment will be described in detail. However, the scope of the idea of the present invention may be determined from the matters disclosed by the present embodiment, and the idea of the invention of the present embodiment may be performed by adding, deleting, or modifying components to the proposed embodiment. It will be said to include variations.

In the following description, the word 'comprising' does not exclude the presence of other elements or steps than those listed.

1 is a diagram schematically showing a content management system according to an embodiment of the present invention.

The content management system includes a broadcasting business bar 100, a content server 300, and an image display device 200. The content management system includes a PC 400 capable of downloading content by accessing the content server 300 through a network. do.

The broadcaster 100 outputs a broadcast signal to the video display device 200 through a satellite broadcast or a cable, and also transmits a broadcast signal using an internet protocol through a network connection.

The broadcast signal transmitted by the broadcast provider 100 may be provided as satellite broadcast, cable broadcast or terrestrial broadcast according to the infrastructure established by the broadcast provider 100. Therefore, the video display device 200 may include a broadcast signal receiving means corresponding thereto.

The content server 300 may identify each of the image display apparatuses 200 using product information, and a user of the image display apparatus 200 may connect the image display apparatus 200 to a content server 300 through a network. ), You can register a key to encrypt using a specific key or product serial number.

In addition, a user of the image display apparatus 200 may access the content server 300 using a separate PC and then register or authenticate a product for the image display apparatus 200.

The result of performing product registration or authentication on the content server 300, that is, an encryption key may be used as a decryption key when the content server 300 encrypts content, and the content server 300 displays the image. The device 200 provides an encryption key and content.

In this case, the video display device 200 performs a process of transmitting a key to a server connected to a network and downloading contents from the server, and receiving a video signal from the broadcaster 100 and receiving the video signal. After processing, the process is displayed to the user, and communication between the processes, such as a socket and a message queue, defined in advance by IPC (InterProcess Communication) is performed.

A multi-process method in the image display device will be described later with reference to the accompanying drawings.

Meanwhile, when the video display device 200 downloads an encryption key and content, the video display device 200 performs a decryption process of the downloaded content using the downloaded encryption key or a unique serial number.

Since the decoded content needs to be executed only in the corresponding video display device, the decoding operation may be performed only by the ROM number in the video display device.

According to an embodiment, an image display device capable of downloading content from the content server 300 may be limited. In this case, the content server 300 allows the download of the content only for the video display device registered by the user accessing the content server 300.

To this end, the content server 300 should be identifiable for each video display device, and the content server 300 may identify each video display device through a unique number of the video display device generated during manufacture. .

In this case, the controller of the image display device should deliver the corresponding product registration number or serial number stored when the product registration number is requested from the content server 300.

Meanwhile, all the video display devices can download the contents provided by the content server 300, and the decryption and processing may be determined by whether the set encryption key is generated or stored in the video display device. can do.

In this case, the content provided by the content server 300 is encrypted to be decrypted and executed only in a specific display device, and the encryption key is a unique ROM number of the video display device or an authentication key previously stored by the user. And so on.

The content provided from the content server 300 may be distinguished from a broadcast signal, and may be used to play an image or play an audio by the image display device, and may be a video such as a flash or an audio file such as an mp3. This can be

2 is a block diagram illustrating a configuration of an image display device according to an exemplary embodiment of the present invention.

Referring to FIG. 2, the video display device 200 includes a broadcast signal processor 210 for receiving a broadcast signal transmitted from a broadcast station, and a storage unit for storing the received broadcast signal or content received from a content server. A control unit 240 for transmitting a key for encrypting the content through the data transmitting / receiving unit 240 or for decrypting the content using the content and the encryption key provided by the content server; Data transmission and reception unit 240 for requesting an encryption key to the server and receiving the requested encryption key or the content provided from the content server.

The video display device 200 includes a display unit 220 and a speaker for outputting a broadcast or downloaded content processed by the broadcast signal processor 210, and a user interface 260 for receiving a user's command. More).

The broadcast signal processor 210 includes a tuner 212 for tuning a channel to receive a broadcast signal transmitted from a broadcast station, and a demodulator 214 for extracting an original broadcast signal excluding a carrier from a broadcast signal received on a carrier. And a demultiplexer 216 for demultiplexing the demodulated broadcast signal into a video signal, an audio signal, various digital broadcast information, and a received broadcast signal, and decoding the classified video signal, audio signal, and data for digital broadcast. The decoding unit 218 is included.

When the broadcast signal transmitted from the broadcasting station is tuned by the tuner 212 and the demodulator 214, and processed to a frequency of a predetermined band, the demultiplexer 216 converts the processed broadcast signal into a video signal, an audio signal, and a digital broadcast. Classify by data class.

The controller 230 performs an authentication operation on whether the content is downloaded and the downloaded content, and looks at the authentication operation of various embodiments performed by the controller 230.

In detail, when the user command received through the user interface unit 260 is to download content from the network-connected content server 300, the controller 230 controls the content of the content through the data transceiver 240. Send the download command.

When receiving a request for providing an authentication key from the content server, the controller 230 provides a registration serial number or a ROM number of an image display device to the content server.

In this case, the content server encrypts the content by using the received authentication key, and transmits the authentication key together with the encrypted content to the video display device.

Then, the control unit 230 of the video display device determines whether the authentication key received through the data transmission and reception unit 240 is the same as the authentication key unique to the video display device, so that decrypted and executed the downloaded content is performed. do.

Here, the request for downloading the content, transmitting and receiving the authentication key for downloading the content, and the series of processes that have downloaded the content is performed by a first process for processing a broadcast signal, the execution of the downloaded content The thread associated with is executed by the second process.

In particular, the second process is a process that is driven next to the first process, and the execution of the content is performed by the second process, so that a video or audio signal of the result of the execution of the content is transmitted to the first process. And then output through the display unit and the speaker which can be processed by the first process.

This will be described with reference to a flowchart between the first process and the second process.

Meanwhile, although the case of downloading content through the content server has been described, the above authentication process may be performed even when a user connects to the content server using a portable storage device such as USB.

That is, the user may download an authentication key together with the content provided by the content server using a PC, and then move the image to a video display device by moving the authentication key to a portable storage device. Even in this case, the controller 230 of the image display device determines whether to decrypt or execute the content according to whether the authentication key stored together with the content in the mobile storage device is the same as the authentication key unique to the display.

According to another embodiment, the controller of the video display device transmits an authentication key to a content server whenever a user downloads a content, and uses the authentication key whenever a user requests execution of downloaded content. By decoding the content, only the designated video display device can decode and execute the content.

3 and 4 are diagrams for describing a method of controlling a video display device driven by a multi process according to an exemplary embodiment of the present invention.

Hereinafter, referring to FIGS. 3 and 4, a first process 500 (or a DTV process) for outputting a broadcast signal and contents and their playback results through a display or a speaker, and the first process A video display device composed of the second process 600 generated by 500 will be described.

As multi-process formation is performed on the OS of the image display device, main functions such as reception and output of broadcast signals are mounted in the first process 500, and processing of content to be downloaded or executed according to a user's selection is performed. By being performed by the second process 600, the video display device may also execute content in response to a user's request even if it includes only a basic function of receiving and outputting a broadcast signal.

The first process 500 transmits an authentication key of an image display device to a content server according to a user's request, and stores the content downloaded from the content server. In this case, the operation between the first process and the second process having the next priority dependent on the first process will be described.

First, before the second processor 600 is generated, a control command transmitted from a remote controller is received and signal processed by the first process 500, and an application program execution request (S101) is received from a user. When the first process 500 is performed, the authentication process for the corresponding program requested by the user is performed (S102).

That is, the first processor 500 determines whether to execute the corresponding program using the authentication key as described above, and if the authentication is valid, the first processor 500 executes the requested application program (content). 600 is generated (S103).

The first process 500 determines whether a preset authentication key exists in the information of the application program or whether a driving key included in the information of the application program is valid. If the authentication key or the driving key of the application program requested by the user is not valid, the second process is not generated or the driving message for the execution of the application program is not transmitted to the second process.

On the other hand, the remote control signal corresponding to the user's request command can be processed by the first processor 500 processing the operation of the IR or RF receiver, even if a specific application is running by the second process 600 The user command for controlling the running application is received by the first process 500 (S201 of FIG. 4).

In addition, the first process 500 transmits the received user command to the second process 600 that is executing the content (S202), thereby executing the content according to the user's request command.

On the other hand, after the above-described program authentication operation by the first process 500 is completed, a communication line is established between the first process 500 and the second process 600 by IPC such as a predefined socket and message queue. It is formed (S104). Alternatively, when a predefined IPC is formed, a message for driving the application program by the second process is output from the first process 500.

In addition, since the first process 500 manages the downloaded content through a network according to a user's request, the first process 500 delivers the content to be managed to the second process 600 for execution of the corresponding content ( S105).

Next, the content executed by the second process 600 may output a video or audio as a result of the execution, in which case the DTV resource managed by the first process 500 (for example, the LCD panel). , Speakers, etc.).

Referring to FIG. 4, when the DTV resource is to be used as a result of the content execution while the content is executed by the second process S301, the first process 500 requests the use of the DTV resource. The message to be transmitted is transmitted (S302). Here, the content executed by the second process may be an update of the DTV process software, but also includes content that needs to output video or audio such as flash or mp3.

Receiving the DTV resource use request transmitted from the second process 600, the first process 500 responds with a message for allowing the use of the DTV resource (S303), and the first process 500 executes content. The video signal or the audio signal corresponding to the result of the transmission is transmitted to the first process 500 through the formed communication channel (S304).

In addition, the video or audio signal is output through the display unit and the speaker by the processing of the first process 500 (S305), and the first process 500 indicates that the output of data through the DTV resource is completed. By returning to the second process 600, execution of the corresponding content and output thereof are performed.

By this process, the DTV, which is a video display device, can be variously executed through multi-process after downloading the contents required by the user together with the basic function of receiving and outputting a broadcast signal. There is an advantage to provide a display device.

1 is a diagram schematically showing a content management system according to an embodiment of the present invention.

2 is a block diagram showing a configuration of an image display device according to an embodiment of the present invention.

3 and 4 are views for explaining a control method of a video display device driven in a multi-process according to an embodiment of the present invention.

Claims (11)

A processor that processes a broadcast signal received through a tuner and outputs an image or audio signal through a display unit or a speaker, the processor comprising: a first processor that controls the processing of the broadcast signal and operations of the display unit and the speaker; And And a second processor configured to perform IPC (InterProcess Communication) with the first processor, wherein the second processor receives the application program from the first processor to execute an application program. The method of claim 1, And the second processor transmits a use request message of the display unit or the speaker to the first processor so that execution of the application program is output through the display unit or the speaker. The method of claim 2, The first processor controls the execution result of the application program provided from the second processor to be output through the display unit or the speaker, and returns a confirmation message of the output result as a response message to the use request message. Video display equipment. The method of claim 1, A user command regarding whether the second processor is driven is received through the first processor, And the first processor reads the command content included in the received user command and delivers a user message corresponding to the command content to the second processor. The method of claim 1, The first processor downloads an application from a networked server and stores it, And providing the application program to the second process through IPC upon user request. The method of claim 1, Information about the application is stored in the first processor, The first processor transmits a driving message for requesting the driving of the application to the second processor only when a preset authentication key exists in the information of the application program or a driving key included in the information of the application program is valid. Image display apparatus, characterized in that. A first processor configured to perform signal processing to output a broadcast signal through a display unit or a speaker of an image display device; And A second processor that is dependent on the first processor and is driven next to the second processor, the second processor communicating with the first processor to execute an application program and output a result of the execution through the display unit or the speaker; . The method of claim 7, wherein The first processor is capable of communicating with a networked external server, And the first processor transfers an application program provided from the external server to the second processor, and manages an authentication key or a driving key as information on the application program. The method of claim 8, The first processor receives a user command for execution of the application program, and if the authentication key or the driving key of the application program is not valid, does not transmit the execution request message of the application program to the second processor. An image display device. Receiving a content execution request message by a user by a first process; Authenticating the content by the first process, and generating a second process if the content is valid; Forming an IPC connection between the second process and the first process; Transferring the content from the first processor to a second process for execution of the content; And And executing the content by the second process. The method of claim 10, Processing of the display unit for outputting an image and the speaker for outputting audio by the first processor, When a result of executing the content of the second processor requires the use of the display unit or a speaker, a result of executing the content from the second processor is provided to the first processor. .
KR1020080090162A 2008-09-12 2008-09-12 A display apparatus and method for controlling thesame KR20100031191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080090162A KR20100031191A (en) 2008-09-12 2008-09-12 A display apparatus and method for controlling thesame

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Application Number Priority Date Filing Date Title
KR1020080090162A KR20100031191A (en) 2008-09-12 2008-09-12 A display apparatus and method for controlling thesame

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KR20100031191A true KR20100031191A (en) 2010-03-22

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