KR100992448B1 - Pcmcia 스크램블러 및 이를 사용하는 방송 송수신기 - Google Patents
Pcmcia 스크램블러 및 이를 사용하는 방송 송수신기 Download PDFInfo
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- KR100992448B1 KR100992448B1 KR1020080136021A KR20080136021A KR100992448B1 KR 100992448 B1 KR100992448 B1 KR 100992448B1 KR 1020080136021 A KR1020080136021 A KR 1020080136021A KR 20080136021 A KR20080136021 A KR 20080136021A KR 100992448 B1 KR100992448 B1 KR 100992448B1
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- scrambler
- broadcast
- information
- pcmcia
- signal
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- 238000000034 method Methods 0.000 claims description 15
- 238000010586 diagram Methods 0.000 description 21
- 238000006243 chemical reaction Methods 0.000 description 4
- 201000009310 astigmatism Diseases 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 206010065042 Immune reconstitution inflammatory syndrome Diseases 0.000 description 1
- 208000008498 Infantile Refsum disease Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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Classifications
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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]
- H04N21/40—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
- H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
- H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/02—Arrangements for relaying broadcast information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/76—Wired systems
- H04H20/77—Wired systems using carrier waves
- H04H20/78—CATV [Community Antenna Television] systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
- H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
- H04H40/90—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
- H04H60/15—Arrangements for conditional access to broadcast information or to broadcast-related services on receiving information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
- H04H60/23—Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
-
- 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
- H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
-
- 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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
- H04N21/26609—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM] using retrofitting techniques, e.g. by re-encrypting the control words used for pre-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]
- H04N21/40—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
- H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
- H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
-
- 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 or rendering scenes according to encoded video stream scene graphs
- H04N21/4408—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
-
- 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
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6118—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving cable transmission, e.g. using a cable modem
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims (7)
- 외부로부터의 방송신호를 수신하여 복조하는 복조기와 방송신호를 변조하는 변조기를 포함하여 이루어지는 방송 송수신기의 CI 인터페이스 슬롯에 삽입되어, 트랜스포트 스트림(Transport Stream)을 입력 받아 TS 내의 방송신호를 프로그램별로 선택적으로 스크램블하여 출력하는 DVB-CI 규격의 인터페이스를 지원하는 PCMCIA 스크램블러(PCMCIA scrambler)로서,스크램블에 사용된 컨트롤 워드(CW)(Control Word) 및 제한수신(Conditional Access) 관련 정보를 각 프로그램별 방송신호의 정보를 전달하는 트랜스포트 스트림 내의 PMT(Program Map Table)에 삽입하여 출력하는 것을 특징으로 하는 PCMCIA 스크램블러.
- 제1항에 있어서,DVB-CI Interface를 통해 TS 신호를 받는 입력부와,암호화에 필요한 CW를 생성하는 컨트롤 워드 생성기와,상기 CW에 의하여 입력되는 TS(Transport Stream)를 프로그램별로 선택적으로 스크램블 하는 스크램블러와,외부로부터 각 방송에 대한 제한정보를 규정하는 구성정보 및 권한 정보를 받아 이를 TS에 싣도록 제어하는 제어 CPU와,상기 CW와 구성정보 및 권한 정보 등에 따라 테이블을 생성하고 암호화하는 테이블 생성기 및 암호화 엔진과,상기 암호화된 CW 및 구성정보, 권한정보 등 생성된 CAS 관련 정보를 방송신호의 정보를 전달하는 트랜스포트 스트림 내의 PMT(Program Map Table)에 추가하는 패킷 변경기와처리된 TS 신호를 DVB-CI interface로 출력하는 출력부로 구성되는 것을 특징으로 하는 PCMCIA 스크램블러.
- 제2항에 있어서,입력된 방송신호가 스크램블된 상태라면 이를 디스크램블 하여 처리할 수 있도록 입력부와 스크램블러 사이에 디스크램블 블록을내장하는 것을 특징으로 하는 PCMCIA 스크램블러.
- 제1항의 PCMCIA 스크램블러를 포함하여 이루어지는 방송 송수신기.
- 제4항에 있어서,방송 송수신기는 트랜스모듈레이터(Transmodulator)인 것을 특징으로 하는 방송 송수신기.
- 제4항에 있어서,방송 송수신기는 프로페셔날 IRD(professional Integrated Receiver and Demodulator)인 것을 특징으로 하는 방송 송수신기.
- 삭제
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080136021A KR100992448B1 (ko) | 2008-12-29 | 2008-12-29 | Pcmcia 스크램블러 및 이를 사용하는 방송 송수신기 |
EP09836292.4A EP2373017A4 (en) | 2008-12-29 | 2009-11-13 | PCMCIA BROADCAST TRANSCEIVER AND RECEIVER WITH RECEIVE LIMITATION FUNCTION IMPLEMENTED USING A DVB-CI INTERFACE |
PCT/KR2009/006661 WO2010076971A2 (ko) | 2008-12-29 | 2009-11-13 | 디브이비-씨아이 인터페이스를 이용하여 수신제한기능을 구현한 방송 송수신기 및 피씨엠씨아이에이 스크램블러 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080136021A KR100992448B1 (ko) | 2008-12-29 | 2008-12-29 | Pcmcia 스크램블러 및 이를 사용하는 방송 송수신기 |
Publications (2)
Publication Number | Publication Date |
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KR20100077934A KR20100077934A (ko) | 2010-07-08 |
KR100992448B1 true KR100992448B1 (ko) | 2010-11-05 |
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KR1020080136021A KR100992448B1 (ko) | 2008-12-29 | 2008-12-29 | Pcmcia 스크램블러 및 이를 사용하는 방송 송수신기 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2373017A4 (ko) |
KR (1) | KR100992448B1 (ko) |
WO (1) | WO2010076971A2 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105681864B (zh) * | 2015-12-31 | 2020-09-15 | 惠州市伟乐科技股份有限公司 | 一种基于ip的传输流抖动去除方法及装置 |
RU182705U1 (ru) * | 2018-04-26 | 2018-08-28 | Общество С Ограниченной Ответственностью "Сателлит 15" | Модуль головной станции |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11261986A (ja) * | 1998-03-13 | 1999-09-24 | Fujitsu Ltd | デジタル多重伝送装置 |
JP4763866B2 (ja) * | 1998-10-15 | 2011-08-31 | インターシア ソフトウェア エルエルシー | 2重再暗号化によりデジタルデータを保護する方法及び装置 |
US6415031B1 (en) * | 1999-03-12 | 2002-07-02 | Diva Systems Corporation | Selective and renewable encryption for secure distribution of video on-demand |
JP4160371B2 (ja) * | 2002-11-29 | 2008-10-01 | 富士通株式会社 | デジタル放送信号配信システムおよび加入者端末 |
KR100988261B1 (ko) * | 2003-07-11 | 2010-10-19 | (주)휴맥스 | 디지털 방송 신호의 조건부 억세스 시스템 및 그 방법 |
KR20050016722A (ko) * | 2005-01-06 | 2005-02-21 | 삼성전자주식회사 | 디지털 멀티미디어 방송 제한 수신 시스템 및 그 방법 |
KR100811345B1 (ko) * | 2005-06-15 | 2008-03-07 | 엘지전자 주식회사 | 디지털 방송 제한 수신 시스템 및 그 방법 |
KR100810318B1 (ko) * | 2006-02-08 | 2008-03-07 | 삼성전자주식회사 | 디지털 멀티미디어 방송 제한 서비스 시스템 및 그 방법 |
-
2008
- 2008-12-29 KR KR1020080136021A patent/KR100992448B1/ko active IP Right Grant
-
2009
- 2009-11-13 EP EP09836292.4A patent/EP2373017A4/en not_active Ceased
- 2009-11-13 WO PCT/KR2009/006661 patent/WO2010076971A2/ko active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2010076971A2 (ko) | 2010-07-08 |
WO2010076971A3 (ko) | 2010-08-19 |
EP2373017A4 (en) | 2013-04-10 |
KR20100077934A (ko) | 2010-07-08 |
EP2373017A2 (en) | 2011-10-05 |
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