KR20010052303A - 통신 네트워크 - Google Patents
통신 네트워크 Download PDFInfo
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- KR20010052303A KR20010052303A KR1020007012254A KR20007012254A KR20010052303A KR 20010052303 A KR20010052303 A KR 20010052303A KR 1020007012254 A KR1020007012254 A KR 1020007012254A KR 20007012254 A KR20007012254 A KR 20007012254A KR 20010052303 A KR20010052303 A KR 20010052303A
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- dds
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- 230000006854 communication Effects 0.000 title claims abstract description 44
- 238000004891 communication Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 33
- 230000007175 bidirectional communication Effects 0.000 claims description 2
- TVZRAEYQIKYCPH-UHFFFAOYSA-N 3-(trimethylsilyl)propane-1-sulfonic acid Chemical compound C[Si](C)(C)CCCS(O)(=O)=O TVZRAEYQIKYCPH-UHFFFAOYSA-N 0.000 claims 1
- 238000009877 rendering Methods 0.000 claims 1
- 230000008054 signal transmission Effects 0.000 claims 1
- 230000008569 process Effects 0.000 description 14
- 238000013475 authorization Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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]
- H04N21/20—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 or manipulating encoded video stream scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40052—High-speed IEEE 1394 serial bus
- H04L12/40104—Security; Encryption; Content protection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40052—High-speed IEEE 1394 serial bus
- H04L12/40117—Interconnection of audio or video/imaging devices
-
- 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
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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
- H04N21/43—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
- H04N21/43607—Interfacing a plurality of external cards, e.g. through a DVB Common Interface [DVB-CI]
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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
- H04N21/43—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
- H04N21/4405—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 decryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2805—Home Audio Video Interoperability [HAVI] networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2838—Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Photovoltaic Devices (AREA)
- Silicon Compounds (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims (13)
- 통신 네트워크에 있어서,a) 서비스 공급자로부터 정보를 수신하고, 직렬 통신 네트워크에 연결되는 수신기 유닛으로서,a1) 제 1 암호화 포맷에 따라 인코딩된 제 1 디지털 신호를 생성하기 위한 제 1 동조기와,a2) 대역외(OOB : Out-Of-Band) 데이터를 생성하기 위한 제 2 동조기를 포함하며, 상기 제 1 디지털 신호 및 상기 OOB 데이터는 상기 직렬 통신 네트워크 상에서 전송되는, 수신기 유닛과,b) 상기 제 1 디지털 신호 및 상기 OOB 데이터를 수신하기 위해서 상기 직렬 통신 네트워크에 연결되는 제 1 조건부 액세스(CA : Conditional Access) 유닛으로서, 상기 OOB 데이터 및 상기 제 1 암호화 포맷을 기초로 제 1 암호해독된 디지털 신호(DDS : Decrypted Digital Signal)를 생성하고, 상기 제 1 DDS를 상기 직렬 통신 네트워크를 통해 전송하는, 제 1 CA 유닛을 포함하는, 통신 네트워크.
- 제 1항에 있어서, 상기 직렬 통신 네트워크는 IEEE 1394 통신 표준에 순응하는, 통신 네트워크.
- 제 1항 또는 제 2항에 있어서, 상기 제 1 DDS는 복사 보호 포맷에 따라 복사 보호되며, 상기 복사 보호 포맷은 상기 제 1 암호화 포맷과는 다른, 통신 네트워크.
- 제 1항 또는 제 2항에 있어서, 상기 제 1 DDS는 복사 보호 포맷에 따라 복사 보호되며, 상기 직렬 통신 네트워크에 연결된 매체 장치를 더 포함하며, 상기 매체 장치는 시청하기 위한 스크램블링되지 않은(unscrambled) 디지털 신호를 생성하기 위해서 상기 복사 보호 포맷을 상기 제 1 DSS에 적용하는, 통신 네트워크.
- 제 1항 내지 제 4항중 어느 한 항에 있어서, 상기 제 1 디지털 신호는 상기 직렬 통신 네트워크 상의 상기 제 1 동조기로부터 제 1 등시성 채널을 통해서 상기 제 1 CA 유닛으로 전송되며, 상기 OOB 데이터는 상기 직렬 통신 네트워크 상의 상기 제 2 동조기로부터 제 2 등시성 채널을 통해서 상기 제 1 CA 유닛으로 전송되는, 통신 네트워크.
- 제 1항 내지 제 5항중 어느 한 항에 있어서, 상기 제 1 동조기는 또한 제 2 암호화 포맷에 따라 인코딩된 제 2 디지털 신호를 생성하기 위한 것이며, 상기 OOB 데이터 및 상기 제 2 디지털 신호를 수신하기 위해서 상기 직렬 통신 네트워크에 연결된 제 2 CA 유닛을 더 포함하며, 상기 제 2 CA 유닛은 상기 OOB 데이터 및 상기 제 2 암호화 포맷에 기초하여 제 2 DDS를 생성하기 위한 것이며, 상기 제 2 DDS를 상기 직렬 통신 네트워크를 통해 또한 전송하기 위한 것인, 통신 네트워크.
- 제 1항 내지 제 6항중 어느 한 항에 있어서, 상기 제 1 CA 유닛은 상기 제 1 CA 유닛에 대해 온 스크린 디스플레이(OSD) 지원을 제공하기 위한 패널 서브유닛을 더 포함하는, 통신 네트워크.
- 제 1항 내지 제 7항중 어느 한 항에 있어서, 상기 직렬 통신 네트워크와 외부 장치 사이에 양방향 통신을 수행하기 위한 모뎀 장치를 더 포함하는, 통신 네트워크.
- 제 1항 내지 제 8항중 어느 한 항에 있어서, 상기 수신기 유닛은 신호 수신 수단을 포함하며, 상기 CA는 제 1 제어 수단을 포함하는, 통신 네트워크.
- 디지털 방송 환경에서, 직렬 통신 네트워크를 통해 분산된 조건부 액세스(CA)를 구현하기 위한 방법에 있어서,a) 상기 직렬 통신 네트워크에 연결된 수신기를 이용하여 서비스 공급자로부터 정보를 수신하는 단계로서, 상기 정보는 두 개의 다른 주파수로 방송되는, 정보 수신 단계와,b) 제 1 암호화 포맷에 따라 인코딩된 제 1 디지털 신호와 대역외(OOB) 데이터를 상기 수신기를 이용하여 상기 정보로부터 생성하는 단계와,c) 상기 제 1 디지털 신호 및 상기 OOB 데이터를 상기 직렬 통신 네트워크를 통해 상기 수신기로부터 제 1 제어 장치로 전송하는 단계로서, 상기 제 1 제어 장치는 상기 수신기와는 다른 네트워크 노드인, 전송 단계와,d) 제 1 암호해독된 디지털 신호(DDS)가 상기 제 1 암호화 포맷에 따라 암호화되지 않도록, 상기 제 1 제어 장치를 이용하여 상기 제 1 디지털 신호 및 상기 OOB 데이터로부터 상기 제 1 DDS를 생성하는 단계와,e) 상기 직렬 통신 네트워크를 통해 상기 제 1 DDS를 제 1 매체 장치에 인도하기 위해(for rendering thereon) 상기 제 1 매체 장치에 전송하는 단계를 포함하는, 분산된 조건부 액세스(CA)를 구현하기 위한 방법.
- 제 10항에 있어서, 상기 직렬 통신 네트워크는 IEEE 1394 통신 표준에 순응하는, 분산된 조건부 액세스(CA)를 구현하기 위한 방법.
- 제 10항 또는 제 11항에 있어서,f) 복사 보호 포맷에 따라 상기 제 1 DDS를 복사 보호하는 단계로서, 상기 복사 보호 포맷은 상기 제 1 암호화 포맷과는 다른, 복사 보호 단계를 더 포함하는, 분산된 조건부 액세스(CA)를 구현하기 위한 방법.
- 제 10항 내지 제 12항중 어느 한 항에 있어서,g) 제 2 암호화 포맷에 따라 인코딩된 제 2 디지털 신호를 상기 수신기를 이용하여 생성하는 단계와,h) 상기 제 2 디지털 신호를 상기 수신기로부터 상기 직렬 통신 네트워크를 통해 제 2 제어 장치에 전송하는 단계로서, 상기 제 2 제어 장치는 상기 수신기 및 상기 제 1 제어 장치와는 다른 네트워크 노드인, 상기 제 2 디지털 신호 전송 단계와,i) 상기 제 2 DDS가 상기 제 2 암호화 포맷에 따라 암호화되지 않도록, 상기 제 2 제어 장치를 이용하여 상기 제 2 디지털 신호와 상기 OOB 데이터로부터 제 2 DDS를 생성하는 단계와,j) 상기 직렬 통신 네트워크를 통해 상기 제 2 DDS를 제 2 매체 장치에 인도하기 위해 상기 제 2 매체 장치에 전송하는 단계를 더 포함하는, 분산된 조건부 액세스(CA)를 구현하기 위한 방법.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8451198P | 1998-05-06 | 1998-05-06 | |
US60/084,511 | 1998-05-06 | ||
US09/232,019 | 1999-01-14 | ||
US9/232,019 | 1999-01-14 | ||
US09/232,019 US6154206A (en) | 1998-05-06 | 1999-01-14 | Method and apparatus for distributed conditional access control on a serial communication network |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010052303A true KR20010052303A (ko) | 2001-06-25 |
KR100600484B1 KR100600484B1 (ko) | 2006-07-13 |
Family
ID=26771064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020007012254A KR100600484B1 (ko) | 1998-05-06 | 1999-05-05 | 통신 네트워크 및 방법 |
Country Status (9)
Country | Link |
---|---|
US (1) | US6154206A (ko) |
EP (1) | EP1078510B1 (ko) |
JP (1) | JP4394833B2 (ko) |
KR (1) | KR100600484B1 (ko) |
AT (1) | ATE233457T1 (ko) |
AU (1) | AU3882899A (ko) |
DE (1) | DE69905564T2 (ko) |
ES (1) | ES2193705T3 (ko) |
WO (1) | WO1999057889A1 (ko) |
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KR100403889B1 (ko) * | 2001-08-02 | 2003-11-03 | 전자부품연구원 | 디지털 유선방송을 위한 피오디 모듈의 oob 물리층처리장치 |
KR100452399B1 (ko) * | 2002-12-12 | 2004-10-08 | 한국전자통신연구원 | 디지털 케이블 방송에서의 패키지 서비스 관리 시스템 및그 방법 |
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- 1999-01-14 US US09/232,019 patent/US6154206A/en not_active Expired - Lifetime
- 1999-05-05 JP JP2000547769A patent/JP4394833B2/ja not_active Expired - Lifetime
- 1999-05-05 DE DE69905564T patent/DE69905564T2/de not_active Expired - Lifetime
- 1999-05-05 WO PCT/US1999/009840 patent/WO1999057889A1/en active IP Right Grant
- 1999-05-05 KR KR1020007012254A patent/KR100600484B1/ko not_active IP Right Cessation
- 1999-05-05 ES ES99921688T patent/ES2193705T3/es not_active Expired - Lifetime
- 1999-05-05 AU AU38828/99A patent/AU3882899A/en not_active Abandoned
- 1999-05-05 AT AT99921688T patent/ATE233457T1/de not_active IP Right Cessation
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KR100403889B1 (ko) * | 2001-08-02 | 2003-11-03 | 전자부품연구원 | 디지털 유선방송을 위한 피오디 모듈의 oob 물리층처리장치 |
KR100452399B1 (ko) * | 2002-12-12 | 2004-10-08 | 한국전자통신연구원 | 디지털 케이블 방송에서의 패키지 서비스 관리 시스템 및그 방법 |
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DE69905564D1 (de) | 2003-04-03 |
ATE233457T1 (de) | 2003-03-15 |
EP1078510B1 (en) | 2003-02-26 |
WO1999057889A1 (en) | 1999-11-11 |
JP2002514859A (ja) | 2002-05-21 |
DE69905564T2 (de) | 2003-12-11 |
ES2193705T3 (es) | 2003-11-01 |
US6154206A (en) | 2000-11-28 |
JP4394833B2 (ja) | 2010-01-06 |
KR100600484B1 (ko) | 2006-07-13 |
EP1078510A1 (en) | 2001-02-28 |
AU3882899A (en) | 1999-11-23 |
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