JP5557897B2 - デジタルメディアコンテンツ保護システム及び方法 - Google Patents
デジタルメディアコンテンツ保護システム及び方法 Download PDFInfo
- Publication number
- JP5557897B2 JP5557897B2 JP2012500725A JP2012500725A JP5557897B2 JP 5557897 B2 JP5557897 B2 JP 5557897B2 JP 2012500725 A JP2012500725 A JP 2012500725A JP 2012500725 A JP2012500725 A JP 2012500725A JP 5557897 B2 JP5557897 B2 JP 5557897B2
- Authority
- JP
- Japan
- Prior art keywords
- content
- information
- encrypted
- encryption
- license
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 57
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 239000000284 extract Substances 0.000 claims description 9
- 238000012790 confirmation Methods 0.000 claims description 8
- 238000013075 data extraction Methods 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 13
- 230000006870 function Effects 0.000 description 10
- 238000004891 communication Methods 0.000 description 9
- 238000004806 packaging method and process Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000000750 progressive effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/12—Protecting executable software
- G06F21/121—Restricting unauthorised execution of programs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
-
- 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
- H04N21/23614—Multiplexing of additional data and video streams
-
- 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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4348—Demultiplexing of additional data and video streams
-
- 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
- H04N21/4627—Rights management associated to the 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
- H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
- H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
-
- 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
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
-
- 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
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2107—File encryption
Description
Claims (11)
- コンテンツのフォーマットを分析して該当フォーマットのペイロードに位置した実際データ領域のうち少なくとも一部を暗号化し、暗号化キー値及びコンテンツ情報のうち少なくとも一つを含む暗号化情報を前記コンテンツに挿入して暗号化されたコンテンツを生成するパッケージャと、
前記暗号化されたコンテンツを受信した外部の装置からライセンス要請及び前記暗号化情報を受信し、前記暗号化情報を確認して、前記暗号化されたコンテンツの復号化に使われるライセンスを発生させ、前記発生したライセンスを前記外部の装置に提供するDRMサーバと、を備えており、
前記暗号化情報は、前記暗号化キー値及びコンテンツ情報を暗号化することで発生し、前記コンテンツ内の追加または変更可能な情報領域に挿入され、
前記暗号化されたコンテンツは、再生可能であると共に独立した配布用コンテンツであり、
前記パッケージャは、
前記コンテンツのフォーマットを区分するフォーマット分析部と、
前記コンテンツのフォーマットの種類によって、ペイロード領域内の実際データ領域から暗号化する部分を抽出するペイロードデータ抽出部と、
前記ペイロードデータ抽出部で抽出された部分を既定のキーで暗号化するデータ暗号化部と、
前記暗号化に使われたキー情報とコンテンツ識別情報とを含む情報を暗号化して前記暗号化情報を生成し、前記暗号化情報を前記コンテンツの情報領域に挿入する暗号化情報生成及び挿入部と、
前記データ暗号化部及び前記暗号化情報生成及び挿入部で使われる暗号化キー情報を管理する暗号化情報管理部と、を備えることを特徴とするデジタルメディアコンテンツ保護システム。 - 前記データ領域に対する暗号化動作と、前記暗号化キー値及びコンテンツ情報に対する暗号化動作とは、相異なる暗号化方式を通じて行われることを特徴とする請求項1に記載のデジタルメディアコンテンツ保護システム。
- 前記暗号化情報は、前記ライセンスを獲得するために前記DRMサーバの位置情報をさらに含むことを特徴とする請求項1に記載のデジタルメディアコンテンツ保護システム。
- 前記パッケージャの後端に配され、前記パッケージャから前記暗号化されたコンテンツを受信してこれを保存し、外部の要請に応答して前記保存された暗号化されたコンテンツを提供するコンテンツサーバをさらに備えることを特徴とする請求項1に記載のデジタルメディアコンテンツ保護システム。
- 前記パッケージャで生成された暗号化されたコンテンツを受信し、これを再生するユーザー端末機をさらに備え、
前記ユーザー端末機は、
前記暗号化されたコンテンツから前記暗号化情報を抽出し、前記抽出された暗号化情報及びライセンス要請を前記DRMサーバに提供し、前記DRMサーバから前記ライセンスを受信して前記暗号化されたコンテンツを復号化するDRMフィルタを備えることを特徴とする請求項1に記載のデジタルメディアコンテンツ保護システム。 - 前記DRMフィルタは、
前記暗号化されたコンテンツから前記暗号化情報を抽出する暗号化情報抽出部と、
前記抽出された暗号化情報を前記DRMサーバに提供し、前記DRMサーバから前記ライセンスを受信するDRMサーバ接続部と、
前記受信されたライセンスを利用して前記暗号化されたコンテンツを復号化するパケット復号部と、
前記受信されたライセンスを保存するライセンス保存部と、を備えることを特徴とする請求項5に記載のデジタルメディアコンテンツ保護システム。 - 前記DRMサーバは、
前記外部の装置から提供された前記暗号化情報に対して復号化動作を行う暗号化情報復号部と、
前記復号化された暗号化情報に含まれるキー情報及びコンテンツ識別子を確認する情報/識別子確認部と、
前記情報/識別子確認部が確認した結果によって、前記暗号化されたコンテンツに対する復号化の可能なライセンスを生成して外部に提供するライセンス生成部と、を備えることを特徴とする請求項1に記載のデジタルメディアコンテンツ保護システム。 - 前記パッケージャにより暗号化されるコンテンツのフォーマットは、AVI、MPEG2−TS(Transport Stream)、FLV/FLA、WMA/WMV/ASFのうち少なくとも一つ以上を含むことを特徴とする請求項1に記載のデジタルメディアコンテンツ保護システム。
- コンテンツのフォーマットを分析して、該当フォーマットのペイロードに位置した実際データ領域のうち少なくとも一部に対して第1暗号化動作を行い、前記第1暗号化動作に使われた暗号化キー値及びコンテンツ情報のうち少なくとも一つを含む情報に対して、第2暗号化動作を行って暗号化情報を発生させ、前記発生した暗号化情報を前記コンテンツ内の追加または変更可能な情報領域に挿入して暗号化されたコンテンツを生成するパッケージャと、
前記パッケージャの後端に配され、前記パッケージャから前記暗号化されたコンテンツを受信してこれを保存し、外部の要請に応答して前記保存された暗号化されたコンテンツを提供するコンテンツサーバと、を備えており、
前記暗号化されたコンテンツは、再生可能であると共に独立した配布用コンテンツであり、
前記パッケージャは、
前記コンテンツのフォーマットを区分するフォーマット分析部と、
前記コンテンツのフォーマットの種類によって、ペイロード領域内の実際データ領域から暗号化する部分を抽出するペイロードデータ抽出部と、
前記ペイロードデータ抽出部で抽出された部分を既定のキーで暗号化するデータ暗号化部と、
前記暗号化に使われたキー情報とコンテンツ識別情報とを含む情報を暗号化して前記暗号化情報を生成し、前記暗号化情報を前記コンテンツの情報領域に挿入する暗号化情報生成及び挿入部と、
前記データ暗号化部及び前記暗号化情報生成及び挿入部で使われる暗号化キー情報を管理する暗号化情報管理部と、を備えることを特徴とするデジタルメディアコンテンツ保護システム。 - 前記暗号化されたコンテンツを受信した外部の装置からライセンス要請及び暗号化情報を受信し、前記暗号化情報を確認して、前記暗号化されたコンテンツの復号化に使われるライセンスを発生させ、前記発生したライセンスを前記外部の装置に提供するDRMサーバをさらに備えることを特徴とする請求項9に記載のデジタルメディアコンテンツ保護システム。
- 前記外部の装置は、前記暗号化されたコンテンツを復号化して再生するための再生部を備えるユーザー端末機であり、
前記再生部は、
前記暗号化されたコンテンツから前記暗号化情報を抽出し、前記抽出された暗号化情報を前記DRMサーバに提供し、前記DRMサーバから前記ライセンスを受信して前記暗号化されたコンテンツを復号化するDRMフィルタを備えることを特徴とする請求項10に記載のデジタルメディアコンテンツ保護システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2009-0023630 | 2009-03-19 | ||
KR1020090023630A KR100930303B1 (ko) | 2009-03-19 | 2009-03-19 | 디지털 미디어 콘텐츠 보호 시스템 및 방법 |
PCT/KR2010/001720 WO2010107279A2 (ko) | 2009-03-19 | 2010-03-19 | 디지털 미디어 콘텐츠 보호 시스템 및 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012521035A JP2012521035A (ja) | 2012-09-10 |
JP5557897B2 true JP5557897B2 (ja) | 2014-07-23 |
Family
ID=41683926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012500725A Active JP5557897B2 (ja) | 2009-03-19 | 2010-03-19 | デジタルメディアコンテンツ保護システム及び方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8875310B2 (ja) |
EP (1) | EP2420952B1 (ja) |
JP (1) | JP5557897B2 (ja) |
KR (1) | KR100930303B1 (ja) |
WO (1) | WO2010107279A2 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012047064A2 (ko) * | 2010-10-07 | 2012-04-12 | 삼성전자 주식회사 | Drm 서비스 제공 방법 및 장치 |
CN103988518B (zh) | 2011-11-25 | 2018-05-15 | 日立麦克赛尔株式会社 | 图像传输装置 |
KR101907934B1 (ko) | 2012-02-16 | 2018-10-15 | 삼성전자주식회사 | 전자 장치에서 컨텐츠를 재생하기 위한 장치 및 방법 |
US9177158B2 (en) | 2012-11-07 | 2015-11-03 | Theplatform, Llc | Methods and systems for processing content rights |
TW201423469A (zh) * | 2012-12-03 | 2014-06-16 | Inst Information Industry | 電子數位資料匿篩裝置、方法及其電腦可讀取紀錄媒體 |
US9648320B2 (en) * | 2013-02-22 | 2017-05-09 | Comcast Cable Communications, Llc | Methods and systems for processing content |
KR20150064647A (ko) * | 2013-12-03 | 2015-06-11 | 삼성전자주식회사 | 컨텐츠 보안 방법 및 컨텐츠 보안 기능을 제공하는 단말기 |
WO2015084022A1 (ko) * | 2013-12-03 | 2015-06-11 | 삼성전자 주식회사 | 컨텐츠 보안 방법 및 컨텐츠 보안 기능을 제공하는 전자장치 |
CN106999257A (zh) * | 2014-09-23 | 2017-08-01 | 外科安全技术公司 | 手术室黑盒设备、系统、方法和计算机可读介质 |
WO2016149794A1 (en) * | 2015-03-26 | 2016-09-29 | Surgical Safety Technologies Inc. | Operating room black-box device, system, method and computer readable medium |
US9826064B2 (en) * | 2015-02-23 | 2017-11-21 | Lenovo (Singapore) Pte. Ltd. | Securing sensitive data between a client and server using claim numbers |
KR102077239B1 (ko) | 2015-07-02 | 2020-02-13 | 삼성전자주식회사 | 멀티미디어 데이터를 암호화하는 방법 및 장치, 복호화하는 방법 및 장치 |
US10744407B2 (en) * | 2015-09-08 | 2020-08-18 | Sony Interactive Entertainment LLC | Dynamic network storage for cloud console server |
US10372935B1 (en) * | 2015-11-13 | 2019-08-06 | Google Llc | Selectively encrypting commit log entries |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1869997A (zh) | 1995-02-13 | 2006-11-29 | 英特特拉斯特技术公司 | 用于安全交易管理和电子权利保护的系统和方法 |
US7073063B2 (en) * | 1999-03-27 | 2006-07-04 | Microsoft Corporation | Binding a digital license to a portable device or the like in a digital rights management (DRM) system and checking out/checking in the digital license to/from the portable device or the like |
JP2003174439A (ja) | 2001-12-06 | 2003-06-20 | Hitachi Ltd | デジタルコンテンツの配信,蓄積システム |
KR100400947B1 (en) | 2002-11-26 | 2003-10-08 | Coretrust Inc | System and method for protecting information of multimedia streaming contents, and recording medium recording the same |
US7065787B2 (en) | 2002-06-12 | 2006-06-20 | Microsoft Corporation | Publishing content in connection with digital rights management (DRM) architecture |
JP2004179941A (ja) * | 2002-11-27 | 2004-06-24 | Nippon Telegr & Teleph Corp <Ntt> | 暗号化装置、復号化装置、プログラムおよび記録媒体 |
KR100596382B1 (ko) | 2003-11-05 | 2006-07-03 | 한국전자통신연구원 | 디지털 컨텐츠 보호 장치 및 방법 |
KR101244308B1 (ko) * | 2003-12-08 | 2013-03-18 | 삼성전자주식회사 | 동영상 파일의 암호화 방법 및 그를 이용한 디지털 저작권관리방법 |
KR20060015797A (ko) * | 2004-08-16 | 2006-02-21 | 주식회사 코어트러스트 | 피디에이용 무선 콘텐츠의 디지털 저작권 관리 시스템 |
JP4921862B2 (ja) * | 2006-06-12 | 2012-04-25 | 株式会社東芝 | 情報記録再生装置及び方法 |
KR101291075B1 (ko) * | 2006-10-31 | 2013-08-01 | 에스케이플래닛 주식회사 | 디지털 권한 관리의 선택적 암호화 및 복호화에 대한 방법및 시스템 |
KR100885722B1 (ko) * | 2007-03-02 | 2009-02-26 | 주식회사 케이티프리텔 | 사용자 생성 컨텐츠 보호 시스템 및 그 방법 |
KR20090065350A (ko) * | 2007-12-17 | 2009-06-22 | 한국전자통신연구원 | 재전송을 이용한 콘텐츠 스트리밍에서 콘텐츠 보호 장치 및방법 |
WO2010090647A1 (en) * | 2009-02-09 | 2010-08-12 | Hewlett-Packard Development Company, L.P. | Secure media system |
-
2009
- 2009-03-19 KR KR1020090023630A patent/KR100930303B1/ko active IP Right Grant
-
2010
- 2010-03-19 JP JP2012500725A patent/JP5557897B2/ja active Active
- 2010-03-19 WO PCT/KR2010/001720 patent/WO2010107279A2/ko active Application Filing
- 2010-03-19 EP EP10753729.2A patent/EP2420952B1/en not_active Not-in-force
- 2010-03-19 US US13/256,993 patent/US8875310B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2420952B1 (en) | 2018-08-08 |
EP2420952A4 (en) | 2013-05-22 |
KR100930303B1 (ko) | 2009-12-08 |
EP2420952A2 (en) | 2012-02-22 |
US8875310B2 (en) | 2014-10-28 |
JP2012521035A (ja) | 2012-09-10 |
WO2010107279A3 (ko) | 2010-11-25 |
WO2010107279A2 (ko) | 2010-09-23 |
US20120011596A1 (en) | 2012-01-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5557897B2 (ja) | デジタルメディアコンテンツ保護システム及び方法 | |
KR101379861B1 (ko) | Drm 제공 장치, 시스템 및 그 방법 | |
JP4039489B2 (ja) | マルチメディアコンテンツの情報保護方法及びシステム | |
KR101192546B1 (ko) | 콘텐츠 배포 시스템에서 다수의 콘텐츠 단편을 갖는 미디어저장 구조의 사용 | |
US20080216177A1 (en) | Contents Distribution System | |
JP5659226B2 (ja) | コンテンツ受信機、コンテンツ出力方法 | |
JP5357263B2 (ja) | コンテンツ受信装置およびコンテンツ出力方法 | |
US20090044241A1 (en) | Broadcasting content protection/management system | |
JP2010192944A (ja) | コンテンツ配信装置、コンテンツ利用装置、コンテンツ配信システム、コンテンツ配信方法、およびプログラム | |
KR20130085926A (ko) | Hls 기반 보안 처리 시스템 및 그 방법 | |
KR101420874B1 (ko) | 휴대 방송 서비스 단말의 방송 콘텐츠 저장 방법 | |
JPWO2014181470A1 (ja) | コンテンツ再生装置、コンテンツ再生方法及びコンテンツ再生システム | |
WO2022223540A1 (en) | System and method for encoding audio data | |
JP5350021B2 (ja) | ファイル生成装置、ファイル再生装置およびコンピュータプログラム | |
EP2587756A1 (en) | Method, system and devices for media content consumption protection | |
KR100635128B1 (ko) | 아이에스오 베이스 미디어 파일 형식의 암호화된 동영상파일 생성 장치 및 암호화된 동영상 복원 장치와, 그 복원방법 | |
CN101630519A (zh) | Ip流式拷贝控制方法和系统 | |
KR100587530B1 (ko) | 스트리밍 서비스되는 에이에스에프 파일의 보호장치 및 방법 | |
KR100728242B1 (ko) | 스트리밍 서비스되는 동영상 파일의 보호 시스템 및 그의보호 동영상 생성/재생 장치 및 그 방법 | |
JP2011229092A (ja) | コンテンツ受信装置 | |
JP2008016095A (ja) | 通信システム、復号再生装置、記録装置、通信プログラム及び記録媒体 | |
WO2012157447A1 (ja) | 受信装置、および受信方法 | |
WO2011030687A1 (ja) | コンテンツ受信装置 | |
KR20230068861A (ko) | Drm 컨텐트 재생을 위한 미디어 sdk 및 그 제어 방법 | |
WO2012157446A1 (ja) | 受信装置、および受信方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20130423 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130507 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130806 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20140107 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20140402 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20140513 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20140603 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5557897 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |