KR20130097977A - Set top box for transmitting received broadcasting to heterogeneous terminal and service method thereof - Google Patents

Set top box for transmitting received broadcasting to heterogeneous terminal and service method thereof Download PDF

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Publication number
KR20130097977A
KR20130097977A KR1020120019714A KR20120019714A KR20130097977A KR 20130097977 A KR20130097977 A KR 20130097977A KR 1020120019714 A KR1020120019714 A KR 1020120019714A KR 20120019714 A KR20120019714 A KR 20120019714A KR 20130097977 A KR20130097977 A KR 20130097977A
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South Korea
Prior art keywords
content
terminal
top box
received
service provider
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KR1020120019714A
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Korean (ko)
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김영일
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한국전자통신연구원
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Priority to KR1020120019714A priority Critical patent/KR20130097977A/en
Publication of KR20130097977A publication Critical patent/KR20130097977A/en

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    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • 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
    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • 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
    • 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
    • H04N21/64—Addressing
    • H04N21/6405—Multicasting
    • 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
    • H04N21/643—Communication protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite

Abstract

PURPOSE: A set top box transmitting a received broadcast to a plurality of heterogeneous terminals and a service method thereof are provided to supply a paid broadcasting service to the heterogeneous terminals in different positions through one set top box and to selectively supply various content of service providers through integration between the providers. CONSTITUTION: A receiving unit (101) receives content from a service provider (106) providing a paid broadcast. A converting unit (102) descrambles the received content and converts the content into a format suitable for a play target terminal (105). A distributing unit (103) transmits the converted content to the terminal by using a communication interface. [Reference numerals] (101) Receiving unit; (102) Converting unit; (103) Distributing unit; (104) Set top box; (105) Terminal; (106) Service provider; (107) Storage unit; (AA,FF) Contents request; (BB) Service provider request; (CC) Contents; (DD,II) Service provider information; (EE,JJ) Contents information; (GG) Service provider selection; (HH) Converted contents

Description

Set-top box for transmitting received broadcasts to a plurality of heterogeneous terminals and a service method thereof {SET TOP BOX FOR TRANSMITTING RECEIVED BROADCASTING TO HETEROGENEOUS TERMINAL AND SERVICE METHOD THEREOF}

The present invention relates to a set-top box for transmitting a received broadcast to a plurality of heterogeneous terminals and a service method using the same.

The number of pay subscribers is steadily increasing with the activation of various interactive pay TV contents such as digital cable broadcasting, IPTV service and satellite TV. Most of these pay-TVs require a set-top box to receive services.

Meanwhile, as the penetration of television increased, it became commonplace for a family to own multiple televisions. In addition, as the spread of mobile devices such as smartphones and tablet PCs increases, each home has a large number of terminals capable of receiving and playing broadcasts. If the television or each terminal requires a different set-top box, this will not only cause inconvenience to users, but also will be economically burdensome. In addition, there is a problem that it is difficult to provide different pay-TV services because pay-TV service providers use different set-top boxes. Accordingly, in most cases, only one pay broadcasting service is used.

Therefore, in order to solve the above-mentioned problems, there is a need for providing a set-top box that is not dependent on a pay broadcasting service company and can provide contents to a plurality of terminals.

An object of the present invention is to use a single set-top box, selectively receive a variety of pay-TV, such as IPTV, digital cable broadcasting, satellite TV, and then apply various types of wired / wireless communication to different locations in the home Integrating different services to terminals is provided.

The set top box for transmitting the received broadcasts to a plurality of heterogeneous terminals according to the present invention includes a receiver, a converter, and a distributor. The receiver is responsible for the communication between the service provider and the set-top box, and selects and outputs a specific pay-TV according to a request of the user terminal. The converter descrambles the scrambled content received from the service provider, converts the scrambled content into a format suitable for the characteristics of the user terminal, and outputs the scrambled content. The distribution unit distributes the converted content received from the conversion unit to the user terminal, performs a management function for a plurality of user terminals, and assigns an IP to the user terminal.

Pay-TV service method using a set-top box for transmitting the received broadcast to a plurality of heterogeneous terminals according to the present invention are as follows. First, a user makes a network entry request through a user terminal, and accordingly, the set-top box allocates an IP. Receives service provider information from a plurality of service providers and delivers it to a user terminal. The user selects a specific service provider based on the received service provider information and requests content information. The content information received from the service provider is delivered to the user terminal through the set-top box, the user selects the desired content based on the received content information and delivers the content request through the user terminal. The content request is delivered to the service provider through the set top box, and the service provider provides the content to the set top box according to the content request. The set-top box checks whether the received content is modulated by scrambled content, and converts and codes the content by determining a format suitable for the user terminal in consideration of the characteristics of the user terminal requesting the service. The converted content is delivered to the user terminal to provide a service to the user.

The present invention provides a paid broadcasting service using a single set-top box to heterogeneous terminals located at different places in the home, and can selectively receive various contents of various service providers by integrating set-top boxes between service providers. In addition, the service can be provided through various mobile terminals by using various wireless communication methods as well as the conventional wired method.

1 is a conceptual diagram of a service using a set-top box for transmitting a received broadcast to a plurality of heterogeneous terminals.
2 is a block diagram of a set-top box for transmitting a received broadcast to a plurality of heterogeneous terminals according to an embodiment of the present invention.
3 is a detailed block diagram of the receiver 101 of FIG. 2.
4 is a detailed block diagram of the converter 102 of FIG. 2.
5 is a detailed configuration diagram of the distribution unit 103 of FIG. 2.
6 is a flowchart illustrating a service method using a set-top box for transmitting a received broadcast to a plurality of heterogeneous terminals according to an embodiment using each component.
7 is a flowchart illustrating a service method using a set-top box for transmitting a received broadcast to a plurality of heterogeneous terminals according to an embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Terms used in the present specification are terms selected in consideration of functions in the embodiments, and the meaning of the terms may vary depending on the intention or custom of the user or operator. Therefore, the meaning of the terms used in the following embodiments is defined according to the definition when specifically defined in this specification, and unless otherwise defined, it should be interpreted in a sense generally recognized by those skilled in the art.

1 is a conceptual diagram of a service using a set top box for transmitting a received broadcast to a plurality of heterogeneous terminals.

Referring to FIG. 1, the present invention selectively receives broadcasts and contents provided by the service provider 106, converts the contents according to characteristics of heterogeneous terminals 105 located at different locations, and then transmits the contents using wired / wireless communication. It relates to a set-top box 104 and a service method using the same. Here, the heterogeneous terminal 105 located at different places is a device that can play contents such as a smartphone, a tablet PC, a laptop, a computer, and the like, which are commonly used as various devices existing in different rooms or locations in a home. Says all devices.

To this end, the present invention provides a function of selectively receiving a variety of pay broadcasts, receiving and transmitting broadcast program information to a terminal, converting and receiving paid broadcast content according to characteristics of a terminal, and using a variety of wired and wireless communication. It is characterized by providing a function for delivering to the terminal.

2 is a block diagram of a set-top box for transmitting a received broadcast to a plurality of heterogeneous terminals according to an embodiment of the present invention.

Referring to FIG. 2, the set-top box 104 which transmits a received broadcast to a plurality of heterogeneous terminals transmits the content through various wired / wireless communication with a receiver 101 for selecting and receiving content and a converter 102 for converting the content. It includes a distribution unit 103 for outputting and storing the received content, and a storage unit 107 for outputting and sharing the corresponding content when the user requests.

The receiver 101 is responsible for communication between the service provider 106 and the set top box. The service provider 106 selectively receives a plurality of service provider information and a plurality of content information and a plurality of content delivered by the plurality of service providers 106. The request is then received and forwarded to the service provider 106.

It can also provide services directly to display devices that are wired to set-top boxes. If the received content is a signal or data format that cannot be received and reproduced by the display device, the content is made a signal that can be received by the display device and transmitted.

The conversion unit 102 checks whether the received content is scrambled, and performs conversion coding based on these two types in consideration of the characteristics of the terminal requesting the service, and outputs it to the distribution unit 103. In addition, it stores the content information received from the service provider 106, provides an electronic content guide service for delivering the content information in accordance with the user's request to the terminal, and manages IP communication between the terminals. The user receives the content information through the electronic content guide, selects the desired content, and requests the service provider 106.

The distribution unit 103 receives the received service provider information, the content information, and the content, distributes the same to the requesting terminal, and transmits the same by using wireless communication. It also stores and manages the information of the terminals possessed by the user. Terminals are different in location and available communication interfaces. Accordingly, the distribution unit 103 selects a communication interface based on the information of the terminals and provides the content.

The storage unit 107 stores the content received from the service provider 106. When the user requests content stored in the storage unit 107, the storage unit 107 outputs the content to the conversion unit 102. The user may be provided with the content through the conversion unit 102 and the distribution unit 103.

3 is a detailed block diagram of the receiver 101 of FIG. 2.

Referring to FIGS. 2 and 3, the receiver 101 is configured to perform a communication between the service provider 106 providing the content and the set top box 104 and the physical layer processor 1011 and various signals. It is connected by wire to a multi-stream selection receiver 1012 for selectively receiving a required signal, a middleware unit 1013 for converting the selected content into a video signal for playback on a display device, and a set top box 104. And a video signal output unit 1014 for transmitting the converted video signal from the middleware unit 1013 to the display device.

The physical layer unit 1011 refers to electrical and physical details necessary for connecting actual devices. It is responsible for both communication between the set-top box 104 and the service provider 106 providing services such as IPTV (Internet Protocol Television), cable TV, satellite TV according to the present invention. Receives a signal such as service provider information, content information and content delivered by the service provider 106, and delivers the user's request to the service provider 106.

The multi- propagation selective reception unit 1012 is a tuning device for selectively receiving a signal according to a user request or a signal of a service provider 106 that a user can receive from among various received signals. The set-top box 104 according to the present invention may receive various paid broadcasting services provided by a plurality of service providers without being dependent on one pay broadcasting service provider. Accordingly, the multi-radio selective reception unit 1012 can selectively receive a plurality of signals transmitted from a plurality of service providers 106 simultaneously.

The middleware unit 1013 and the image signal output unit 1014 output content to a display device directly connected to the set-top box 104 by wire in the same manner as a conventional service method using a set-top box. In the case of a display device such as a television, a smartphone or a PC and the like cannot receive and play the received content data by themselves. Therefore, the content is converted into a video signal through the middleware unit 1013 and transmitted to the display device through the video signal output unit 1014.

4 is a detailed block diagram of the converter 102 of FIG. 2.

The conversion unit 102 performs a modulation encoding on the general signal processing unit 1021 that performs transcoding on the unmodulated content received from the service provider and a conversion coding on the scrambled content among the received content. A signal processor 1022 and an electronic contents guide (ECG) processor 1023 for delivering content-related information to the terminal, and a communication manager 1024 for managing IP communication between the set-top box 104 and the terminal. do. The conversion unit 102 outputs the content converted by the general signal processing unit 1021 and the modulation signal processing unit 1022 and the ECG of the ECG processing unit to the distribution unit 103.

Scramble means converting the original video or audio so that the transmission contents are not known by itself even when the radio wave is received. That is, a method of mixing program data by a predetermined algorithm in order to prevent a receiver who is not authenticated from receiving a CA program. The service provider uses this scramble to prevent city broadcasting of the broadcast.

The general signal processor 1021 processes unmodulated content through scrambled content provided by the service provider. Conversion coding is performed in consideration of the characteristics of each terminal.

The modulated signal processor 1022 processes content modulated by scrambled content. After the decoded modulated content is decoded after conversion coding considering characteristics of each terminal. Through this process, the city can be prevented by maintaining the security while effectively delivering the content to the terminal.

Heterogeneous terminals that receive and play content at different locations may have different capabilities, screen sizes, communication environments, and methods. It is inefficient to provide the same contents collectively to different terminals with these characteristics. Checking the information of each terminal and converting the content capacity and codec according to the resolution and communication environment considering the screen size of the corresponding terminal can provide a better service. Therefore, the conversion unit 102 converts the content into a format matching the resolution, capacity, and pixel number of the terminal based on the information of each terminal to optimize the content format for the terminal.

The electronic content guide (ECG) processor 1023 stores content information and outputs an ECG. ECG refers to a service that displays content information on a screen of a terminal and provides the same to a user. This performs the same function as the Electronic Program Guide (EPG) which displays the programming table of the currently used television broadcast program on the television screen. Stores the content information received from the service provider, and displays the content information including information such as the time, name, channel, etc. of the content on the screen of the terminal using the ECG, the user can search and select the desired content through this Can be.

The communication manager 1024 stores the IP address assigned to each terminal. Then, the stored IP address is added to the content, and the distribution unit 103 transmits the content to the corresponding terminal through the IP address added to the content.

5 is a detailed configuration diagram of the distribution unit 103 of FIG. 2.

The distribution unit 103 selects a communication interface in consideration of the communication interface of the terminal and the converted content and ECG received from the conversion unit 102, and distributes the content and outputs it to the terminal. The distribution unit 103 is a femtocell device unit including a wireless LAN device 1031 for outputting content using a wireless LAN communication such as Wi-Fi and a femtocell serving as a base station based on mobile communication. 1032 and a terminal configuration management unit 1033 that performs a management function for the terminal and assigns an IP to the terminal.

The WLAN device unit 1031 includes a call processing unit in charge of communication connection and a wireless transmission unit for transmitting and receiving wireless communication. The femtocell device unit 1032 includes a radio resource allocation unit based on a quality of service (QoS), a call processing unit in charge of communication connection, and a wireless transmission unit transmitting and receiving wireless communication.

The set-top box provides contents to the terminal through various wired / wireless communication through the WLAN device unit 1031 and the femtocell device unit 1032. In addition to using wireless LAN communication such as Wi-Fi. Wireless broadband Internet service (Wireless Broadband Internet, Wibro) and 3GPP, 3GPP-LTE, mobile WiMAX and other mobile communication services can be provided. Since a variety of wireless communication is available, it is possible to provide content to terminals using different communication methods regardless of the location installed in the house or the current operating location. The communication interface used in the present invention is not limited to the above-described communication interface, and is meant to include all wireless communication methods applicable to the set top box.

The multi-terminal management unit 1033 transfers the stored terminal information to the conversion unit 102. Assign an IP address to the terminal to enable communication with the set-top box. At this time, the assigned IP address can use a commonly used public IP address. You can also assign and use a private IP address using Network Address Translation (NAT). NAT is a network address translator used to translate private IP addresses into public IP addresses. Using a private IP address saves public IP addresses and protects the home network created by the set-top box from outside intrusion.

The set-top box for transmitting the received broadcasts to a plurality of heterogeneous terminals may perform a function as a home gateway server. In addition, a storage device may be added to the set-top box to store content received from a service provider, and the content stored in the storage device may be shared when the terminal requests the content.

6 is a flowchart illustrating a service method using a set-top box for transmitting a received broadcast to a plurality of heterogeneous terminals according to an embodiment using each component.

Referring to FIG. 6, the terminal 105 first requests a network entry to the distribution unit 101 in order to use a pay broadcasting service (201). The distribution unit 103 receiving the network entry request allocates an IP address to the terminal 105 (202). The set top box according to the present invention can provide a service to a plurality of heterogeneous terminals at the same time. Therefore, when power is supplied to each terminal or a signal is received from the terminal, the set-top box assigns an IP address to the terminal. The assigned IP address can be a general public IP address or a private IP address using NAT.

When the terminal 105 enters the network, the service provider 106 transmits the service provider information to the receiver 103 so that the user can select the service provider 106 (203). The service provider information transmitted from the service provider 106 to the receiver 103 is transferred to the terminal 105 through the converter 102 and the distributor 103 (204, 205). The set top box according to the present invention can be provided with services from a plurality of service providers simultaneously without being dependent on one service provider. Accordingly, the user selects a desired service by receiving information of each service provider.

The service provider 106 selected by the user transmits the content information to the receiving unit 103 at the request of the terminal 105 (206). The content information received from the service provider 104 is transmitted to the terminal 105 via the conversion unit 102 and the distribution unit 103 (207, 208). The content information delivered to the terminal 105 is displayed on the screen through the ECG service. The user determines the desired content through the ECG displayed on the screen and requests it from the service provider.

The user selects the desired content based on the received content information and transmits the corresponding content request to the distribution unit 101 through the terminal 105 (209). The content request is transmitted (210, 211) to the service provider 106 via the conversion unit 102 and the receiver 103, the service provider 106 is to deliver (212) the content selected by the user to the receiver 103 . The content received by the receiver 103 is transferred 213 to the converter 102. The conversion unit 102 performs a process of processing and converting the content into a format suitable for the terminal 105 in consideration of the characteristics of the terminal 105.

In the process of processing and converting the content received from the service provider in the conversion unit 102, if the content is normal content that has not been modulated, the content is converted into a format matching the resolution, capacity, and number of pixels suitable for the terminal, and the conversion The content is restored in the form of a transport stream (Teansport Stream). If the content is scrambled content, the scrambled content is first descrambled, and then the descrambled content is converted into a format that matches the resolution, capacity, and number of pixels suitable for the terminal, and the converted content is scrambled again. Then, the rescrambled content is restored in the form of transport stream.

When transferring the converted content from the conversion unit 102 to the distribution unit 103, the content information containing the information on the content can be converted and coded together and provided to the user in the form of metadata. The user may additionally obtain various additional information such as a character, a plot, and related content for the corresponding content by using the content information in the form of metadata.

The content is transferred to the terminal 105 via the distribution unit 101 (214 and 215). Each terminal 105 may use a different communication interface, and the current location may also be different. Therefore, the distribution unit 101 selects a communication interface suitable for the terminal 105 and delivers the content to an IP address previously assigned to each terminal 105. The communication method may use various wireless communication methods such as wireless LAN communication such as Wi-Fi and mobile communication such as 3GPP and 3GPP-LTE.

7 is a flowchart illustrating a service method using a set-top box for transmitting a received broadcast to a plurality of heterogeneous terminals according to an embodiment.

Referring to FIG. 7, a user first selects a service provider (301). The set top box according to the present invention may receive a signal from a plurality of service providers at the same time and provide a service. The user requests the service provider information from the set top box and selects a suitable service provider through this. After selecting a service provider, the service provider receives content information from the service provider and selects specific content of the service provider through the service provider (302).

Next, the terminal negotiates the screen size of the terminal and the type of codec being accommodated (303). As described above, a plurality of heterogeneous terminals possessed by a user may have different sizes of screens, formats of playable files, and their performances. Therefore, the set-top box considers these features and selects a resolution or codec type suitable for the terminal.

Next, the set-top box checks whether the subscriber scrambles the selected content (304). In general, service providers scramble signals to prevent unauthorized users from accessing them. Therefore, the set-top box checks whether the received content is scrambled and performs appropriate conversion coding according to the result.

If it is determined that the corresponding content is unmodulated content, the transport stream of the received content is converted into a format suitable for the characteristics of the terminal according to the aforementioned negotiation content (305), and then the stream packet of the corresponding content ( Stream Packet) is added to the IP address of the terminal (309) and delivered to the distribution unit of the set-top box.

As a result of checking whether the content is scrambled, if the corresponding content is scrambled content, first, the received content is descrambled (Multistream) (306). Then, the content is converted and coded in consideration of the characteristics of the terminal in the same manner as described above (307). The content is again scrambled and modulated (308). In the case of descrambled content, since the transport stream of the corresponding content cannot be converted, modulation is first released through descramble. The descrambled content is converted into a format suitable for the characteristics of the terminal according to the above-described negotiation contents. Descrambled content is tampered with again through scramble to prevent unauthorized unauthorized users from accessing it. The terminal adds the IP address of the terminal to the stream packet of the rescrambled content and transmits the IP address to the distribution unit (309).

The distribution unit determines a wireless access method required by the terminal (310). Each terminal has a different wireless communication interface. Therefore, the distribution unit selects a suitable wireless communication interface in consideration of the communication device and the current communication state of each terminal. If the WLAN connection is required, the corresponding WLAN call processing and traffic processing procedures are performed through the WLAN apparatus unit (311). When access through mobile communication is required, call processing and traffic processing are performed through the femtocell device unit (312). Thereafter, the corresponding content stream is transmitted to the terminal using the selected communication interface (313).

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 is possible.

101: receiver
1011 Physical Layer
1012: multi-radio selective receiver
1013: middleware part
1014: video signal output unit
102: converter
1021: general signal processing unit
1022: modulated signal processing unit
1023: ECG processing unit
1024: communication management unit
103: distribution unit
1031: wireless LAN unit
1032: femtocell unit
1033: multi-terminal management unit
104: set top box
105: terminal
106: service provider
107:

Claims (13)

Receiving unit for receiving content from a service provider for providing a pay broadcast;
A converter configured to descramble the received content and convert the content into a format suitable for a terminal to reproduce the content; And
A distribution unit which transmits the converted content to the terminal using a communication interface provided by the terminal;
Set-top box for transmitting a received broadcast comprising a plurality of heterogeneous terminals. The method of claim 1,
The receiver may further comprise:
A physical layer unit to receive data from the plurality of service providers; And
A multi-frequency selective receiving unit selectively receiving desired data from among the plurality of received data and extracting contents included in the data;
Set-top box for transmitting a received broadcast comprising a plurality of heterogeneous terminals. The method of claim 2,
A middleware unit converting the extracted content into a video signal; And
An image signal output unit configured to output the extracted image signal to a display device connected to the set top box;
Set top box for transmitting the received broadcast to a plurality of heterogeneous terminals further comprising. The method of claim 1,
Wherein,
A general signal processor for transcoding the received scrambled content;
A modulation signal processor for descrambling and transcoding the scrambled received content, and a communication manager for managing communication between the set-top box and the terminal; And
An electronic contents guide (ECG) for delivering the contents related information to the terminal;
Set-top box for transmitting a received broadcast comprising a plurality of heterogeneous terminals. The method of claim 1,
Wherein the distributor comprises:
A wireless LAN device unit outputting a wireless LAN communication interface when the terminal has a wireless LAN communication interface;
A femtocell device unit for performing a mobile communication based base station output through a mobile communication interface when the terminal has a mobile communication interface; And
A multi-terminal management unit for allocating an Internet Protocol (Internet Protocol) address to the terminal;
Set-top box for transmitting a received broadcast comprising a plurality of heterogeneous terminals. The method of claim 1,
A storage unit for storing the received content and outputting the stored content when the terminal requests the stored content;
Set top box for transmitting the received broadcast to a plurality of heterogeneous terminals further comprising. 6. The method of claim 5,
The protocol address assigned to the terminal,
A set-top box for transmitting a received broadcast to a plurality of heterogeneous terminals, comprising a private Internet Protocol (IP) address using Network Address Translation (NAT). In the service method of the set-top box for outputting the received content to a plurality of heterogeneous terminals,
Selecting one service provider from a plurality of service providers and requesting content transmission;
Checking whether the content received from the service provider is scrambled according to the content request, and converting the content into a format suitable for the terminal; And
Outputting the converted content to a plurality of the terminals;
Service method of a set-top box for transmitting a received broadcast comprising a plurality of heterogeneous terminals. The method of claim 8,
Selecting one of the plurality of service providers and delivering a content request to the selected service provider,
Allocating a protocol address to each of the terminals according to a network entry request of the terminal;
Outputting service provider information received from a plurality of service providers to a plurality of terminals;
Requesting content information from the plurality of terminals by the selected service provider based on the service provider information;
Outputting the content information received from the service provider to a plurality of the terminals;
Receiving a content request based on the content information from a plurality of terminals; And
Outputting the content request received from the plurality of terminals to the service provider;
Service method of a set-top box for transmitting the received broadcast to a plurality of heterogeneous terminals further comprising. The method of claim 8,
Converting the received content,
Descrambles the scrambled content;
Converting the descrambled content into a format matching a resolution, capacity, and number of pixels suitable for the terminal;
Scrambling the converted content again; And
Restoring the scrambled content in the form of a transport stream;
Pay-TV service method using a set-top box for transmitting the received broadcast to a plurality of heterogeneous terminals further comprising. The method of claim 8,
Converting the received content,
Converting the content into a format matching the resolution, capacity, and number of pixels suitable for the terminal; And
Restoring the converted content into a transport stream;
Service method of a set-top box for transmitting the received broadcast to a plurality of heterogeneous terminals further comprising. The method of claim 8,
Storing the content received from the service provider in the set top box; And
Delivering the content when the content request is received from the terminal;
Service method of a set-top box for transmitting the received broadcast to a plurality of heterogeneous terminals further comprising. The method of claim 8,
The service method of the set-top box for transmitting the received broadcast to a plurality of heterogeneous terminals further comprising the step of including the content information in the transport stream of the content.
KR1020120019714A 2012-02-27 2012-02-27 Set top box for transmitting received broadcasting to heterogeneous terminal and service method thereof KR20130097977A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200051361A (en) * 2018-11-05 2020-05-13 상명대학교산학협력단 System and method for providing the broadcasting data mirroring service of smart phone communicated with smart TV capable of receiving multi channel broadcasting signals
KR20210134595A (en) * 2020-07-17 2021-11-10 상명대학교산학협력단 A smartphone that mirrors the image of a smart TV and mirroring method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200051361A (en) * 2018-11-05 2020-05-13 상명대학교산학협력단 System and method for providing the broadcasting data mirroring service of smart phone communicated with smart TV capable of receiving multi channel broadcasting signals
KR20210134595A (en) * 2020-07-17 2021-11-10 상명대학교산학협력단 A smartphone that mirrors the image of a smart TV and mirroring method

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