KR20010058377A - Multiple method for broadcasting channel - Google Patents

Multiple method for broadcasting channel Download PDF

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Publication number
KR20010058377A
KR20010058377A KR1019990062646A KR19990062646A KR20010058377A KR 20010058377 A KR20010058377 A KR 20010058377A KR 1019990062646 A KR1019990062646 A KR 1019990062646A KR 19990062646 A KR19990062646 A KR 19990062646A KR 20010058377 A KR20010058377 A KR 20010058377A
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KR
South Korea
Prior art keywords
advertisement
program
user
advertisements
channel
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KR1019990062646A
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Korean (ko)
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KR100311419B1 (en
Inventor
정진국
고재우
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구자홍
엘지전자 주식회사
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Priority to KR1019990062646A priority Critical patent/KR100311419B1/en
Publication of KR20010058377A publication Critical patent/KR20010058377A/en
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Publication of KR100311419B1 publication Critical patent/KR100311419B1/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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • 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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • 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
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
    • 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
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47211—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting pay-per-view content
    • 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
    • H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
    • H04N21/4784—Supplemental services, e.g. displaying phone caller identification, shopping application receiving rewards
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/812—Monomedia components thereof involving advertisement data
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

PURPOSE: A method for multiplexing a broadcasting channel is provided to enable a user to selectively view a paid channel by adequately compounding an advertisement and paid information, and by differentiating the charge of information. CONSTITUTION: A plurality of programs including various types of advertisements added to paid information are manufactured in a broadcasting station. Each common key of the programs differentiated and manufactured is set up. A common key and a private key of a program which a user selects are combined. In addition, the key combined is encoded and transmitted. The charge is differentiated according to the content of advertisements. In addition, a user can select an adequate one according to the charge and the content of the advertisements.

Description

방송 채널의 다중화 방법{MULTIPLE METHOD FOR BROADCASTING CHANNEL}Multiplexing method of broadcast channel {MULTIPLE METHOD FOR BROADCASTING CHANNEL}

본 발명은 디지털 방송 기술에 관한 것으로, 특히 유료 채널 시청시 광고 포함 정도에 따라 차등 요금을 적용하고, 사용자가 이를 선택하여 시청할 수 있도록 하는 방송 채널의 다중화 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to digital broadcasting technology, and more particularly, to a multiplexing method of a broadcasting channel that applies a differential fee according to the degree of advertisement included when viewing a paid channel, and allows a user to select and watch the advertisement.

현재 진행중에 있는 디지탈 위성 방송은 기본적인 A/V 서비스를 제공하는 정도에 지나지 않지만, 앞으로 다가올 멀티 미디어 시대에 있어서 미디어의 성공 여부는 얼마나 많은 그리고 얼마나 다양한 서비스를 소비자에게 제공할 수 있느냐에 달려 있다고 해도 과언이 아닐 것이다.Digital satellite broadcasting currently in progress is nothing more than a basic A / V service, but the success of the media in the upcoming multimedia era depends on how much and how diverse services can be provided to consumers. It would not be an exaggeration.

현재 국내의 위성을 통한 디지털 방송은 위성으로부터 전송된 위성 신호를 안테나로 받아 이를 채널 복조한 후 시청자가 선택한 방송의 PID(Program ID)에 따라 역다중화기로 입력된 전송 스트림(stream) 중에서 해당 오디오/비디오 패킷을 디코딩하여 출력하는 것이다.Currently, digital broadcasting through domestic satellite receives the satellite signal transmitted from the satellite as an antenna and demodulates the channel, and then the corresponding audio / audio is transmitted from the transmission stream input to the demultiplexer according to the PID (Program ID) of the broadcast selected by the viewer. Decoding and outputting video packets.

그리고, 이때 서비스되는 프로그램들은 그 종류별로 무료(Free), PPC(Pay-Per Channel) 및 PPV(Pay-Per-View)등으로 나뉘어지며, 이중 PPC채널과 PPV채널은 시청자가 이용한 만큼 서비스료를 지불해야 하는 유료 채널로서, PPC채널은 수신 신청한 채널당 소정의 수신료를 내게 되면 수신 허가를 받는 것이고, PPV 채널은 프로그램당 수신료를 수신 시간으로 계산하여 청구하는 방식이다.At this time, the service programs are divided into Free, Pay-Per Channel (PPC) and Pay-Per-View (PPV) according to their types. As a pay channel to be paid, a PPC channel receives a permission to receive a predetermined fee for each channel subscribed to, and a PPV channel calculates a fee for receiving a fee per program.

상기와 같은 유료 서비스는 유료 서비스에 가입된 사람만이 접근 가능하도록 스마트 카드를 이용하는 시스템이 일반적이며, 카스(CAS)는 방송 및 통신 사업자가 상기 유료 서비스를 이용하는 가입자에게 사용료를 청구하기 위한 목적으로 개발된 대표적인 시스템으로, 상기 스마트 카드에는 가입자의 시청 이력이 저장되어 있어 자원 및 가입자 관리 시스템(RSMS : Resource & Subscriber Management System)으로 사용 정보를 전송하도록 되어 있다.Such a paid service is generally a system using a smart card to be accessible only to people subscribed to the paid service, CAS (cas) is for the purpose of billing the subscribers to the subscribers using the paid service broadcast and telecommunications service In a representative system developed, the smart card stores a subscriber's viewing history so as to transmit usage information to a resource and subscriber management system (RSMS).

그럼, 상기와 같은 유료 채널의 운영 방법을 도1의 블록도를 참조하여 설명하면 다음과 같다.Then, the operation method of the pay channel as described above with reference to the block diagram of FIG.

일단, 방송국 측에서는 영상 및 음성, 자막 또는 광고와 같은 여러 정보들을 다중화기(1)를 통해 다중화하여 도2에 도시된 바와 같은 송신 프로그램(TS)을 만들고, 송신기(2)에서는 제어워드(CW)에 의해 스크램블링하여 전송 채널을 통해 사용자에게 전송한다.First, on the broadcasting station side, multiple information such as video and audio, subtitles or advertisements are multiplexed through the multiplexer 1 to create a transmission program TS as shown in FIG. 2, and the control word CW at the transmitter 2. It is scrambled by the user and transmitted to the user through a transmission channel.

다음, RSMS(3)측에서는 상기 제어워드(CW)에 공통키(BK : Broadcasting Key)와 개인키(PK : Private Key)를 암호화하여 제한 수신 메시지(ECM(CW,BK), EMM(BK,PK))를 사용자에 전송한다.Next, the RSMS (3) side encrypts the common key (BK: Broadcasting Key) and the private key (PK: Private Key) in the control word (CW) to receive restricted messages (ECM (CW, BK), EMM (BK, PK) Send)) to the user.

이에 따라, 사용자측에서는 스마트 카드를 통해 개인키(PK)를 입력하여 EMM(Entitlement Management Message)으로 암호화 되어 있는 공통키(BK)를 복호화하고, 다시 상기 복호된 공통키(BK)를 이용하여 ECM(Entitlement Control Message)으로 암호화 되어 있는 제어워드(CW)를 복호하여 수신기(4)에 입력시킨다.Accordingly, the user inputs a private key (PK) through a smart card to decrypt the common key (BK) encrypted with an Entitlement Management Message (EMM), and again uses the decrypted common key (BK) to use an ECM ( The control word (CW) encrypted by the Entitlement Control Message is decrypted and input to the receiver 4.

따라서, 수신기(4)는 상기 제어워드(CW)를 이용하여 전송 받은 데이터를 디스크램블하고, 이를 역다중화기(6)에 입력하여 역다중화 시킴으로써 사용자에게 영상 및음성 등이 재생될 수 있도록 되어 있다.Therefore, the receiver 4 descrambles the data received using the control word CW, inputs the demultiplexer 6 to the demultiplexer 6, and reproduces video and audio to a user.

즉, 상기와 같은 유료 채널의 이용 방식은 개인키(PK)를 이용할 수 있는 기간만큼 예를들어 시청자가 일정 기간동안 일정액을 지불하거나, 일정액의 정액권 카드를 구입하여 카드에 적혀 있는 금액 만큼을 시청하는 방식이다.In other words, the usage method of the pay channel as described above allows the viewer to pay a certain amount of money for a certain period of time, or purchase a fixed amount of fixed-value card for a certain period of time as long as the private key (PK) can be used. That's the way it is.

그러나, 상기 종래의 기술에 있어서 유료 채널로 제공되는 정보에는 시청자에게 유용한 가치가 있는 정보와 그렇지 않은 정보(예를 들어, 광고)가 함께 포함되어 있는데, 시청자는 이러한 정보들에 대한 선택권이 부여되어 있지 않기 때문에 광고를 보는 대가가 시청자에게 돌아가지 않고, 오히려 비싼 이용료를 지불하고도 필요없는 정보를 시청해야 되는 문제점이 있었다.However, in the conventional technology, the information provided to the paid channel includes information that is useful to the viewer and information that is not (for example, an advertisement), and the viewer is given a choice about such information. There is a problem in that the cost of viewing the advertisement does not go back to the viewer because it is not, and rather, the user does not need to pay the expensive fee.

따라서, 본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 창출한 것으로, 광고와 유료 정보를 적절히 섞어 정보 이용료를 차별화 하고, 사용자의 선택에 따라 이를 시청할 수 있도록 하는 방법을 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to provide a method of differentiating information usage fee by appropriately mixing advertisements and paid information, and allowing a user to view it according to a user's selection. .

도1은 일반적인 유료 채널의 운영 방법을 보인 블록도.1 is a block diagram showing a method of operating a general paid channel.

도2는 종래 유료 채널에서 전송되는 전송 스트림의 구조를 보인 예시도.2 is an exemplary view showing the structure of a transport stream transmitted in a conventional pay channel;

도3은 본 발명에 의해 광고 포함 정도에 따라 다중화시킨 프로그램의 예시도.Figure 3 is an illustration of a program multiplexed according to the degree of advertisement inclusion by the present invention.

도4는 본 발명에 의해 전송되는 전송 스트림의 구조를 보인 예시도.4 is an exemplary view showing a structure of a transport stream transmitted by the present invention.

도5는 본 발명에 의해 어버랩 광고가 표시되는 화면을 보인 예시도.5 is an exemplary view showing a screen on which the advertisement is displayed according to the present invention.

이와 같은 목적을 달성하기 위한 본 발명은, 방송사에서 유료 정보에 다양한 형태의 광고를 포함하여 복수개의 프로그램을 제작하는 제1단계와; 상기 차별화하여 제작된 프로그램에 대해 각각의 공통키를 설정하는 제2단계와; 사용자가 선택한 프로그램의 공통키와 개인키를 조합하여 암호화해 전송시키는 제3단계를 포함하여 이루어짐으로써 달성되는 것으로, 이하, 본 발명에 따른 일실시예를 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.The present invention for achieving the above object comprises the first step of producing a plurality of programs including various types of advertising in the pay information in the broadcast company; A second step of setting each common key for the differentiated program; It is achieved by a third step of encrypting and transmitting a combination of a common key and a private key of the program selected by the user. Hereinafter, with reference to the accompanying drawings an embodiment according to the present invention will be described in detail as follows. same.

일단, 종래의 방식으로 운영되는 유료 채널에 있어서 사용자가 정보 형태를 선택해서 시청할 수 없었던 이유는 방송사에서 전송하는 프로그램이 도2와 같이 프로그램과 프로그램 사이에 광고를 넣는 단일 형식으로 제작된 프로그램만을 전송하였기 때문이다.The reason why the user could not select and view the information type in the paid channel operated in the conventional manner is that the program transmitted by the broadcasting company transmits only the program produced in a single format in which an advertisement is inserted between the program and the program as shown in FIG. Because

따라서, 본 발명에서는 도3에 도시된 바와 같이 유료 정보(영상&음성&자막 1,2..)와 광고를 다양한 형태로 포함해서 복수개의 전송 프로그램을 제작하고, 광고가 포함된 정도에 따라 요금을 차별화 하여 사용자가 이용료와 포함된 정보의 양에 따라 적절한 하나를 선택하게 한다.Therefore, in the present invention, as shown in FIG. 3, a plurality of transmission programs are produced including paid information (video & audio & subtitles 1,2 ..) and advertisements in various forms, and the charges are included according to the degree of advertisement. Differentiation, allowing the user to choose the appropriate one based on the fee and the amount of information included.

다음, 도1의 블록도에서 보듯이 RSMS에서 생성하는 EMM을 상기 복수개로 제작된 프로그램에 대해 각각 시청 권한이 다르게 설정된 공통키(BK)에 개인키(PK)를 더하여 생성함으로써, 수신측에서는 개인키(PK)를 입력하는 것 만으로도 자신이 선택한 프로그램에 대한 공통키(BK)가 복호되고, 그에 따라 생성된 제어워드(CW)를 이용하여 디스크램블 함으로써 사용자가 선택한 형태의 프로그램을 시청할 수 있게 되는 것이다.Next, as shown in the block diagram of FIG. 1, an EMM generated by RSMS is generated by adding a private key PK to a common key BK in which viewing authority is set differently for each of the plurality of produced programs. Just by inputting (PK), the common key (BK) for the program selected by the user is decoded and descrambled using the generated control word (CW) so that the user can watch the program of the type selected by the user. .

이때, 방송사에서 제작하는 프로그램 형태는 도2와 같은 형식으로 프로그램 사이 광고를 많이 삽입하는 형태이거나, 도4와 같이 프로그램 사이 광고(광고 1)는 모든 프로그램에 대해 공통이고, 선택 프로그램에 따라 유료 정보의 화면과 어버랩되는 광고(광고 2,3..)를 넣는 형태일 것이다.In this case, the program produced by the broadcaster is a form in which a large number of advertisements are inserted between programs in the form as shown in FIG. 2, or the inter-program advertisement (advertisement 1) is common to all programs as shown in FIG. It would be in the form of putting ads (advertisement 2,3 ..) that overlap with the screen.

이에 따라, 상기 어버랩 광고(광고 2,3..)를 처음부터 유료 정보에 포함하여 한 화면 즉, 한 영상으로 만들 경우에는 역다중화기에는 따로 상기 오버랩 광고를 역다중화시키는 기능이 없어도 되지만, 광고 패킷을 따로 전송할 경우에는 이를 역다중화시키는 기능을 포함하게 된다.Accordingly, in the case of including the above-mentioned advertisement (Advertisement 2,3 ..) in the paid information from the beginning into one screen, that is, one image, the demultiplexer may not have a function of demultiplexing the overlap advertisement separately. If the advertisement packet is transmitted separately, it includes a function of demultiplexing it.

따라서, 상기 어버랩 광고를 따로 역다중화시킬 경우는 도5에 도시한 바와 같이 사용자의 선택에 의해 광고가 표시되는 위치(상단 또는 하단 등..)를 조정할 수 있게 된다.Therefore, when demultiplexing the Urban Wrap advertisement separately, as shown in FIG. 5, the position (top or bottom, etc.) where the advertisement is displayed can be adjusted by the user's selection.

이상에서 설명한 바와 같이 본 발명 방송 채널의 다중화 방법은 유료 채널 시청시 광고 포함 정도에 따라 차등 요금을 적용하고, 사용자가 이를 선택하여 시청할 수 있도록 함으로써, 방송사측에서는 유료 채널을 보다 저렴한 가격으로 운용할 수 있게 되어 가입자를 증가시킬 수 있고, 가입자측에서는 광고 시청에 대한 대가를 받을 수 있게 되고, 광고주측에서는 보다 효과적인 광고를 할 수 있는 효과가 있다.As described above, in the multiplexing method of the present invention, the broadcasting channel can operate the paid channel at a lower price by applying a differential fee according to the degree of inclusion of the advertisement when viewing the paid channel, and allowing the user to select and watch it. The number of subscribers can be increased, the subscriber side can receive a price for watching advertisements, and the advertiser side can have a more effective advertisement.

Claims (5)

방송사에서 유료 정보에 다양한 형태의 광고를 포함하여 복수개의 프로그램을 제작하는 제1단계와; 상기 차별화하여 제작된 프로그램에 대해 각각의 공통키를 설정하는 제2단계와; 사용자가 선택한 프로그램의 공통키와 개인키를 조합하여 암호화해 전송시키는 제3단계를 포함하여 이루어진 것을 특징으로 하는 방송 채널의 다중화 방법.A first step of producing a plurality of programs including various types of advertisements in paid information by a broadcasting company; A second step of setting each common key for the differentiated program; And a third step of combining the common key and the private key of the program selected by the user and transmitting the encrypted key. 제1항에 있어서, 상기 광고 포함 방법은 현재 프로그램이 종료된 후 다음 프로그램이 시작하기 전의 사이에 많은 광고를 삽입하는 형태인 것을 특징으로 하는 방송 채널의 다중화 방법.The multiplexing method of claim 1, wherein the advertisement inclusion method inserts a large number of advertisements after the current program ends and before the next program starts. 제1항에 있어서, 상기 광고 포함 방법은 현재 프로그램의 재생 화면에 오버랩되도록 삽입하는 형태인 것을 특징으로 하는 방송 채널의 다중화 방법.The method of claim 1, wherein the advertisement inclusion method is inserted in such a manner as to overlap the playback screen of the current program. 제3항에 있어서, 상기 오버랩 광고는 프로그램 제작 초기에 광고를 포함하여 한 화면으로 만드는 것을 특징으로 하는 방송 채널의 다중화 방법.4. The multiplexing method of claim 3, wherein the overlapping advertisement is made into one screen including an advertisement at the beginning of program production. 제3항에 있어서, 상기 어버랩 광고는 패킷으로 제작되어 전송하는 것을 특징으로 하는 방송 채널의 다중화 방법.4. The method of claim 3, wherein the urban advertisement is produced in a packet and transmitted.
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Publication number Priority date Publication date Assignee Title
KR20030031407A (en) * 2001-08-01 2003-04-21 샤프 가부시키가이샤 Data Communication Apparatus Providing Advertisement Information and Data Communication Computer Calculating Advertisement Fee

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030031407A (en) * 2001-08-01 2003-04-21 샤프 가부시키가이샤 Data Communication Apparatus Providing Advertisement Information and Data Communication Computer Calculating Advertisement Fee

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