WO2004023717A3 - Content distribution for multiple digital rights management - Google Patents

Content distribution for multiple digital rights management Download PDF

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Publication number
WO2004023717A3
WO2004023717A3 PCT/US2003/027774 US0327774W WO2004023717A3 WO 2004023717 A3 WO2004023717 A3 WO 2004023717A3 US 0327774 W US0327774 W US 0327774W WO 2004023717 A3 WO2004023717 A3 WO 2004023717A3
Authority
WO
WIPO (PCT)
Prior art keywords
content
encrypted
segments
drm
rights management
Prior art date
Application number
PCT/US2003/027774
Other languages
French (fr)
Other versions
WO2004023717A2 (en
Inventor
Brant L Candelore
Original Assignee
Sony Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Electronics Inc filed Critical Sony Electronics Inc
Priority to AU2003268468A priority Critical patent/AU2003268468A1/en
Priority to EP03749433.3A priority patent/EP1543650B1/en
Priority to CA2498326A priority patent/CA2498326C/en
Priority to KR1020057003950A priority patent/KR101250615B1/en
Priority to JP2004534603A priority patent/JP2005538453A/en
Priority to CN038213796A priority patent/CN1682486B/en
Publication of WO2004023717A2 publication Critical patent/WO2004023717A2/en
Publication of WO2004023717A3 publication Critical patent/WO2004023717A3/en

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Classifications

    • 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
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    • 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
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    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation
    • H04N7/52—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/7921—Processing of colour television signals in connection with recording for more than one processing mode
    • H04N9/7925—Processing of colour television signals in connection with recording for more than one processing mode for more than one standard
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled

Abstract

A method and apparatus for enabling use of multiple digital rights management scenarios (DRM). Unencrypted data representing digital content is examined to identify at least segments of content for encryption (608). The identified segments of content are duplicated (610) and then encrypted using a first encryption method associated with a first DRM to produce first encrypted segments. Duplicates are encrypted using a second encryption method associated with a second DRM to produce second encrypted segments (614). A set of pointers are generated that point to the first and second encrypted segments content (618). A file is then created containing first and second encrypted segments of content (622). A file is then created containing first and second encrypted segments of content, pointers and unencrypted content along with DRM rights data to produce a selectively encrypted multiple DRM enabled file.
PCT/US2003/027774 2002-09-09 2003-09-08 Content distribution for multiple digital rights management WO2004023717A2 (en)

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AU2003268468A AU2003268468A1 (en) 2002-09-09 2003-09-08 Content distribution for multiple digital rights management
EP03749433.3A EP1543650B1 (en) 2002-09-09 2003-09-08 Content distribution for multiple digital rights management
CA2498326A CA2498326C (en) 2002-09-09 2003-09-08 Content distribution for multiple digital rights management
KR1020057003950A KR101250615B1 (en) 2002-09-09 2003-09-08 Content distribution for multiple digital rights management
JP2004534603A JP2005538453A (en) 2002-09-09 2003-09-08 Content distribution for multiple digital rights management
CN038213796A CN1682486B (en) 2002-09-09 2003-09-08 Content distribution for multiple digital rights management

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US60/409,675 2002-09-09

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KR (1) KR101250615B1 (en)
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7865925B2 (en) 2003-01-15 2011-01-04 Robertson Neil C Optimization of a full duplex wideband communications system
US8700535B2 (en) 2003-02-25 2014-04-15 Microsoft Corporation Issuing a publisher use license off-line in a digital rights management (DRM) system
US8781969B2 (en) 2005-05-20 2014-07-15 Microsoft Corporation Extensible media rights
US8966550B2 (en) 2002-10-04 2015-02-24 Cisco Technology, Inc. Home communication systems

Families Citing this family (253)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7298851B1 (en) * 1992-12-09 2007-11-20 Discovery Communications, Inc. Electronic book security and copyright protection system
US6020189A (en) * 1996-08-30 2000-02-01 The Johns Hopkins University School Of Medicine Fibroblast growth factor homologous factors (FHFs) and methods of use
US6697489B1 (en) * 1999-03-30 2004-02-24 Sony Corporation Method and apparatus for securing control words
US7730300B2 (en) * 1999-03-30 2010-06-01 Sony Corporation Method and apparatus for protecting the transfer of data
US7039614B1 (en) * 1999-11-09 2006-05-02 Sony Corporation Method for simulcrypting scrambled data to a plurality of conditional access devices
US7861312B2 (en) 2000-01-06 2010-12-28 Super Talent Electronics, Inc. MP3 player with digital rights management
US7225164B1 (en) * 2000-02-15 2007-05-29 Sony Corporation Method and apparatus for implementing revocation in broadcast networks
US20040205812A1 (en) * 2000-06-22 2004-10-14 Candelore Brant L. Method and apparatus for routing program data in a program viewing unit
US7018795B2 (en) * 2001-03-23 2006-03-28 Fuji Photo Film Co., Ltd. Hybridization probe and target nucleic acid detecting kit, target nucleic acid detecting apparatus and target nucleic acid detecting method using the same
US7127619B2 (en) * 2001-06-06 2006-10-24 Sony Corporation Decoding and decryption of partially encrypted information
US7350082B2 (en) * 2001-06-06 2008-03-25 Sony Corporation Upgrading of encryption
US7895616B2 (en) * 2001-06-06 2011-02-22 Sony Corporation Reconstitution of program streams split across multiple packet identifiers
US7747853B2 (en) 2001-06-06 2010-06-29 Sony Corporation IP delivery of secure digital content
FI115356B (en) * 2001-06-29 2005-04-15 Nokia Corp A method for processing audio-visual information in an electronic device, a system and an electronic device
US7242773B2 (en) * 2002-09-09 2007-07-10 Sony Corporation Multiple partial encryption using retuning
US7302059B2 (en) * 2002-01-02 2007-11-27 Sony Corporation Star pattern partial encryption
US7233669B2 (en) * 2002-01-02 2007-06-19 Sony Corporation Selective encryption to enable multiple decryption keys
US7039938B2 (en) * 2002-01-02 2006-05-02 Sony Corporation Selective encryption for video on demand
US7218738B2 (en) * 2002-01-02 2007-05-15 Sony Corporation Encryption and content control in a digital broadcast system
US7376233B2 (en) * 2002-01-02 2008-05-20 Sony Corporation Video slice and active region based multiple partial encryption
US7823174B2 (en) * 2002-01-02 2010-10-26 Sony Corporation Macro-block based content replacement by PID mapping
US7155012B2 (en) * 2002-01-02 2006-12-26 Sony Corporation Slice mask and moat pattern partial encryption
US7215770B2 (en) * 2002-01-02 2007-05-08 Sony Corporation System and method for partially encrypted multimedia stream
US7765567B2 (en) * 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
US7292690B2 (en) * 2002-01-02 2007-11-06 Sony Corporation Video scene change detection
US20090180025A1 (en) * 2002-05-28 2009-07-16 Sony Corporation Method and apparatus for overlaying graphics on video
US7530084B2 (en) * 2002-05-28 2009-05-05 Sony Corporation Method and apparatus for synchronizing dynamic graphics
US8818896B2 (en) 2002-09-09 2014-08-26 Sony Corporation Selective encryption with coverage encryption
US7545935B2 (en) * 2002-10-04 2009-06-09 Scientific-Atlanta, Inc. Networked multimedia overlay system
US7295673B2 (en) * 2002-10-23 2007-11-13 Divx, Inc. Method and system for securing compressed digital video
US20040083360A1 (en) * 2002-10-28 2004-04-29 Rod Walsh System and method for partially-encrypted data transmission and reception
US7724907B2 (en) * 2002-11-05 2010-05-25 Sony Corporation Mechanism for protecting the transfer of digital content
US8572408B2 (en) 2002-11-05 2013-10-29 Sony Corporation Digital rights management of a digital device
US7046677B2 (en) * 2002-11-27 2006-05-16 Rgb Networks, Inc. Method and apparatus for time-multiplexed processing of multiple digital video programs
US8645988B2 (en) * 2002-12-13 2014-02-04 Sony Corporation Content personalization for digital content
US8667525B2 (en) * 2002-12-13 2014-03-04 Sony Corporation Targeted advertisement selection from a digital stream
SG129240A1 (en) * 2003-01-23 2007-02-26 Agency Science Tech & Res Biodegradable copolymer and nucleic acid delivery system
JP2004265139A (en) * 2003-02-28 2004-09-24 Nec Corp Content execution system, personal digital assistant, external apparatus, content execution method and program
US7409702B2 (en) * 2003-03-20 2008-08-05 Sony Corporation Auxiliary program association table
FR2853182B1 (en) * 2003-03-25 2005-06-17 Thales Sa METHOD FOR INCREASING THE CAPACITY OF A TRANSMISSION SYSTEM USING WAVEFORMS
US7292692B2 (en) * 2003-03-25 2007-11-06 Sony Corporation Content scrambling with minimal impact on legacy devices
US7845014B2 (en) * 2003-03-28 2010-11-30 Sony Corporation Method and apparatus for implementing digital rights management
CN1778062A (en) * 2003-04-21 2006-05-24 Rgb网络有限公司 Time-multiplexed multi-program encryption system
KR20040092649A (en) * 2003-04-24 2004-11-04 엘지전자 주식회사 Method for managing a copy protection information of optical disc
KR100974448B1 (en) * 2003-04-24 2010-08-10 엘지전자 주식회사 Method for managing a copy protection information of optical disc
KR100974449B1 (en) * 2003-04-24 2010-08-10 엘지전자 주식회사 Method for managing a copy protection information of optical disc
KR100972831B1 (en) * 2003-04-24 2010-07-28 엘지전자 주식회사 Protectiog method of encrypted data and reprodecing apparatus therof
US8782687B2 (en) * 2003-04-30 2014-07-15 At&T Intellectual Property I, Lp Multi-platform digital television
US8068516B1 (en) * 2003-06-17 2011-11-29 Bigband Networks, Inc. Method and system for exchanging media and data between multiple clients and a central entity
KR100953160B1 (en) * 2003-06-26 2010-04-20 삼성전자주식회사 A method for providing a content compatibility of mutual network devices having respectively different digital right management
US7469346B2 (en) * 2003-06-27 2008-12-23 Disney Enterprises, Inc. Dual virtual machine architecture for media devices
US7483532B2 (en) 2003-07-03 2009-01-27 Microsoft Corporation RTP payload format
US7382879B1 (en) * 2003-07-23 2008-06-03 Sprint Communications Company, L.P. Digital rights management negotiation for streaming media over a network
US20050036067A1 (en) * 2003-08-05 2005-02-17 Ryal Kim Annon Variable perspective view of video images
US8213769B2 (en) * 2003-08-06 2012-07-03 Broadcom Corporation Frame indexing technique to improve personal video recording functionality and security of transmitted video
CN101065963B (en) 2003-08-29 2010-09-15 Rgb网络有限公司 Video multiplexer system providing low-latency VCR-like effects and program changes
US7681035B1 (en) 2003-09-10 2010-03-16 Realnetworks, Inc. Digital rights management handler and related methods
US20050066357A1 (en) * 2003-09-22 2005-03-24 Ryal Kim Annon Modifying content rating
US20050071663A1 (en) * 2003-09-26 2005-03-31 General Instrument Corporation Separation of copy protection rules for digital rights management
US7296296B2 (en) * 2003-10-23 2007-11-13 Microsoft Corporation Protected media path and refusal response enabler
US7254836B2 (en) * 2003-10-23 2007-08-07 Microsoft Corporation Protected media path and refusal response enabler
US20050097597A1 (en) * 2003-10-31 2005-05-05 Pedlow Leo M.Jr. Hybrid storage of video on demand content
US7343013B2 (en) * 2003-12-16 2008-03-11 Sony Corporation Composite session-based encryption of video on demand content
US20050097596A1 (en) * 2003-10-31 2005-05-05 Pedlow Leo M.Jr. Re-encrypted delivery of video-on-demand content
US7620180B2 (en) * 2003-11-03 2009-11-17 Sony Corporation Preparation of content for multiple conditional access methods in video on demand
US7263187B2 (en) * 2003-10-31 2007-08-28 Sony Corporation Batch mode session-based encryption of video on demand content
US7853980B2 (en) * 2003-10-31 2010-12-14 Sony Corporation Bi-directional indices for trick mode video-on-demand
US7346163B2 (en) * 2003-10-31 2008-03-18 Sony Corporation Dynamic composition of pre-encrypted video on demand content
US20050102702A1 (en) * 2003-11-12 2005-05-12 Candelore Brant L. Cablecard with content manipulation
US8472792B2 (en) 2003-12-08 2013-06-25 Divx, Llc Multimedia distribution system
US7519274B2 (en) 2003-12-08 2009-04-14 Divx, Inc. File format for multiple track digital data
EP1693999A4 (en) * 2003-12-11 2011-09-14 Panasonic Corp Packet transmitter apparatus
US8098817B2 (en) 2003-12-22 2012-01-17 Intel Corporation Methods and apparatus for mixing encrypted data with unencrypted data
US20050169473A1 (en) * 2004-02-03 2005-08-04 Candelore Brant L. Multiple selective encryption with DRM
US8832434B2 (en) * 2004-02-13 2014-09-09 Hewlett-Packard Development Company, L.P. Methods for generating data for describing scalable media
KR100630680B1 (en) * 2004-03-19 2006-10-02 삼성전자주식회사 Non-volatile Memory Device with Asymmetrical Gate Dielectric Layer and Manufacturing Method thereof
DE102004020576B4 (en) * 2004-04-27 2007-03-15 Infineon Technologies Ag Data processing device with switchable charge neutrality and method for operating a dual-rail circuit component
US20060242406A1 (en) 2005-04-22 2006-10-26 Microsoft Corporation Protected computing environment
KR100773388B1 (en) 2004-06-23 2007-11-05 한국정보통신대학교 산학협력단 content combination providing system and method thereof
US8402283B1 (en) 2004-08-02 2013-03-19 Nvidia Corporation Secure content enabled drive system and method
US8359332B1 (en) 2004-08-02 2013-01-22 Nvidia Corporation Secure content enabled drive digital rights management system and method
US7746853B2 (en) * 2004-08-16 2010-06-29 Cisco Technology, Inc. Method and apparatus for transporting broadcast video over a packet network including providing conditional access
EP1810110A1 (en) * 2004-09-29 2007-07-25 Nokia Corporation Data file including encrypted content
US8156049B2 (en) 2004-11-04 2012-04-10 International Business Machines Corporation Universal DRM support for devices
US20060130149A1 (en) * 2004-12-10 2006-06-15 Shuhua Xiang Digital rights management microprocessing architecture
US7895617B2 (en) 2004-12-15 2011-02-22 Sony Corporation Content substitution editor
US8751825B1 (en) * 2004-12-15 2014-06-10 Nvidia Corporation Content server and method of storing content
US8875309B1 (en) 2004-12-15 2014-10-28 Nvidia Corporation Content server and method of providing content therefrom
US8788425B1 (en) 2004-12-15 2014-07-22 Nvidia Corporation Method and system for accessing content on demand
US8041190B2 (en) 2004-12-15 2011-10-18 Sony Corporation System and method for the creation, synchronization and delivery of alternate content
US8346807B1 (en) 2004-12-15 2013-01-01 Nvidia Corporation Method and system for registering and activating content
FR2879878B1 (en) * 2004-12-22 2007-05-25 Thales Sa COMPATIBLE SELECTIVE ENCRYPTION METHOD FOR VIDEO STREAM
US7818350B2 (en) 2005-02-28 2010-10-19 Yahoo! Inc. System and method for creating a collaborative playlist
JP4563450B2 (en) * 2005-02-28 2010-10-13 三菱電機株式会社 Content distribution system
US20060218650A1 (en) * 2005-03-25 2006-09-28 Nokia Corporation System and method for effectuating digital rights management in a home network
US8438645B2 (en) 2005-04-27 2013-05-07 Microsoft Corporation Secure clock with grace periods
US8725646B2 (en) 2005-04-15 2014-05-13 Microsoft Corporation Output protection levels
US7698223B2 (en) * 2005-04-21 2010-04-13 Microsoft Corporation Pluggable file-based digital rights management API layer for applications and engines
US8893299B1 (en) 2005-04-22 2014-11-18 Nvidia Corporation Content keys for authorizing access to content
US9436804B2 (en) 2005-04-22 2016-09-06 Microsoft Technology Licensing, Llc Establishing a unique session key using a hardware functionality scan
US9363481B2 (en) 2005-04-22 2016-06-07 Microsoft Technology Licensing, Llc Protected media pipeline
KR100802110B1 (en) 2005-04-23 2008-02-11 주식회사 케이티프리텔 Apparatus and method for distribute digital contents
EP1878232A2 (en) * 2005-04-26 2008-01-16 Koninklijke Philips Electronics N.V. A device for and a method of processing a data stream having a sequence of packets and timing information related to the packets
CN101853682B (en) 2005-05-23 2011-09-07 松下电器产业株式会社 Regenerating device and regenerating method
US7684566B2 (en) 2005-05-27 2010-03-23 Microsoft Corporation Encryption scheme for streamed multimedia content protected by rights management system
US9787471B1 (en) * 2005-06-02 2017-10-10 Robert T. Jenkins and Virginia T. Jenkins Data enciphering or deciphering using a hierarchical assignment system
US7991997B2 (en) * 2005-06-23 2011-08-02 Panasonic Avionics Corporation System and method for providing searchable data transport stream encryption
US9426387B2 (en) 2005-07-01 2016-08-23 Invention Science Fund I, Llc Image anonymization
US9230601B2 (en) 2005-07-01 2016-01-05 Invention Science Fund I, Llc Media markup system for content alteration in derivative works
US8910033B2 (en) 2005-07-01 2014-12-09 The Invention Science Fund I, Llc Implementing group content substitution in media works
US20070005651A1 (en) 2005-07-01 2007-01-04 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Restoring modified assets
US9092928B2 (en) 2005-07-01 2015-07-28 The Invention Science Fund I, Llc Implementing group content substitution in media works
US9065979B2 (en) 2005-07-01 2015-06-23 The Invention Science Fund I, Llc Promotional placement in media works
US8203609B2 (en) 2007-01-31 2012-06-19 The Invention Science Fund I, Llc Anonymization pursuant to a broadcasted policy
US9583141B2 (en) 2005-07-01 2017-02-28 Invention Science Fund I, Llc Implementing audio substitution options in media works
US8732087B2 (en) 2005-07-01 2014-05-20 The Invention Science Fund I, Llc Authorization for media content alteration
US7769880B2 (en) 2005-07-07 2010-08-03 Microsoft Corporation Carrying protected content using a control protocol for streaming and a transport protocol
US7561696B2 (en) * 2005-07-12 2009-07-14 Microsoft Corporation Delivering policy updates for protected content
KR100762957B1 (en) * 2005-07-19 2007-10-04 삼성전자주식회사 Method and apparatus for descrambling AV stream
US20070019925A1 (en) 2005-07-21 2007-01-25 Macinnis Alexander Systems, methods, and apparatus for trick mode
US8321690B2 (en) * 2005-08-11 2012-11-27 Microsoft Corporation Protecting digital media of various content types
US7634816B2 (en) * 2005-08-11 2009-12-15 Microsoft Corporation Revocation information management
US7711666B1 (en) 2005-08-31 2010-05-04 Richard Crandall Reduction of memory usage for prime number storage by using a table of differences between a closed form numerical function and prime numbers which bounds a prime numeral between two index values
US20070083467A1 (en) * 2005-10-10 2007-04-12 Apple Computer, Inc. Partial encryption techniques for media data
US7844820B2 (en) * 2005-10-10 2010-11-30 Yahoo! Inc. Set of metadata for association with a composite media item and tool for creating such set of metadata
US8306918B2 (en) 2005-10-11 2012-11-06 Apple Inc. Use of media storage structure with multiple pieces of content in a content-distribution system
US7720096B2 (en) * 2005-10-13 2010-05-18 Microsoft Corporation RTP payload format for VC-1
KR100678924B1 (en) * 2005-11-29 2007-02-06 삼성전자주식회사 Apparatus and method for implementing a plurality of drm systems in low-efficiency storage device
CN101322394A (en) * 2005-12-20 2008-12-10 深圳Tcl新技术有限公司 Deciphering system and method for video data
WO2007076484A2 (en) * 2005-12-22 2007-07-05 Flory Clive F Method, system, and apparatus for the management of the electronic files
US20070156601A1 (en) * 2006-01-03 2007-07-05 International Business Machines Corporation Method and system for providing interoperability between digital rights management systems
US8526612B2 (en) * 2006-01-06 2013-09-03 Google Inc. Selective and persistent application level encryption for video provided to a client
KR100770908B1 (en) * 2006-02-09 2007-10-26 삼성전자주식회사 Apparatus and method for tricking playing of a digital broadcasting stream
CN100461199C (en) * 2006-02-14 2009-02-11 华为技术有限公司 Method and device for encrypting and de-encrypting digital content
US7802277B2 (en) * 2006-02-15 2010-09-21 Att Knowledge Ventures, L.P. Inserting data objects into encrypted video streams
KR100782847B1 (en) * 2006-02-15 2007-12-06 삼성전자주식회사 Method and apparatus for importing content which consists of a plural of contents parts
US8978154B2 (en) 2006-02-15 2015-03-10 Samsung Electronics Co., Ltd. Method and apparatus for importing content having plurality of parts
JP2007235260A (en) * 2006-02-27 2007-09-13 Toshiba Corp Content recorder, recording method and program
US8185921B2 (en) * 2006-02-28 2012-05-22 Sony Corporation Parental control of displayed content using closed captioning
US20070220585A1 (en) * 2006-03-01 2007-09-20 Farrugia Augustin J Digital rights management system with diversified content protection process
US7555464B2 (en) * 2006-03-01 2009-06-30 Sony Corporation Multiple DRM management
FR2898451B1 (en) * 2006-03-13 2008-05-09 Medialive METHOD AND EQUIPMENT FOR DISTRIBUTING DIGITAL AUDIOVISUAL CONTENT SECURED BY INTEROPERABLE SOLUTIONS
WO2007106844A2 (en) 2006-03-14 2007-09-20 Divx, Inc. Federated digital rights management scheme including trusted systems
US20070217603A1 (en) * 2006-03-15 2007-09-20 Terayon Communication Systems, Inc. Decryption key reuse in encrypted digital data stream distribution systems
US8325920B2 (en) 2006-04-20 2012-12-04 Google Inc. Enabling transferable entitlements between networked devices
CN100518280C (en) * 2006-04-28 2009-07-22 中国科学院计算技术研究所 Video encrypting/deciphering device and encrypting/deciphering method
US8224751B2 (en) 2006-05-03 2012-07-17 Apple Inc. Device-independent management of cryptographic information
US8223965B2 (en) * 2006-05-05 2012-07-17 Broadcom Corporation Switching network supporting media rights management
US8275132B2 (en) * 2006-05-15 2012-09-25 Buchen Neil B System and method for dynamically allocating stream identifiers in a multi-encryption transport system
US8280982B2 (en) 2006-05-24 2012-10-02 Time Warner Cable Inc. Personal content server apparatus and methods
US9386327B2 (en) 2006-05-24 2016-07-05 Time Warner Cable Enterprises Llc Secondary content insertion apparatus and methods
US20070286882A1 (en) * 2006-06-09 2007-12-13 Yiwen Tang Solvent systems for coating medical devices
US8024762B2 (en) 2006-06-13 2011-09-20 Time Warner Cable Inc. Methods and apparatus for providing virtual content over a network
KR101304674B1 (en) 2006-07-25 2013-09-06 리얼네트웍스아시아퍼시픽 주식회사 Method of contents encryption
US20080114695A1 (en) 2006-11-10 2008-05-15 Semantic Components S.L. Process for implementing a method for the on-line sale of software product use licenses through a data network, and software component which allows carrying out said process
US7860809B2 (en) 2006-11-10 2010-12-28 At&T Intellectual Property I, Lp Methods and devices for digital media distribution
US8752199B2 (en) * 2006-11-10 2014-06-10 Sony Computer Entertainment Inc. Hybrid media distribution with enhanced security
US8739304B2 (en) * 2006-11-10 2014-05-27 Sony Computer Entertainment Inc. Providing content using hybrid media distribution scheme with enhanced security
WO2008068078A1 (en) * 2006-12-07 2008-06-12 International Business Machines Corporation Remote controller having an rfid tag
CN101636726B (en) 2007-01-05 2013-10-30 Divx有限责任公司 Video distribution system including progressive playback
US8256005B2 (en) * 2007-01-08 2012-08-28 Apple Inc. Protection of audio or video data in a playback device
US7978848B2 (en) * 2007-01-09 2011-07-12 Microsoft Corporation Content encryption schema for integrating digital rights management with encrypted multicast
WO2008084876A1 (en) * 2007-01-11 2008-07-17 Panasonic Corporation Method for trick playing on streamed and encrypted multimedia
US20080183624A1 (en) * 2007-01-31 2008-07-31 Microsoft Corporation Protecting presentations and binding presentation elements to the presentation
US7870076B2 (en) * 2007-02-27 2011-01-11 Red Hat, Inc. Method and an apparatus to provide interoperability between different protection schemes
US8181206B2 (en) 2007-02-28 2012-05-15 Time Warner Cable Inc. Personal content server apparatus and methods
JP5133400B2 (en) * 2007-04-04 2013-01-30 メディア パテンツ エセ．エレ． Online distribution method of digital files protected by intellectual property rights via data network, and computer-readable medium including a program for executing the method
US8539543B2 (en) * 2007-04-12 2013-09-17 Microsoft Corporation Managing digital rights for multiple assets in an envelope
US9805374B2 (en) 2007-04-12 2017-10-31 Microsoft Technology Licensing, Llc Content preview
US9215512B2 (en) 2007-04-27 2015-12-15 Invention Science Fund I, Llc Implementation of media content alteration
US9311492B2 (en) 2007-05-22 2016-04-12 Apple Inc. Media storage structures for storing content, devices for using such structures, systems for distributing such structures
US8347098B2 (en) * 2007-05-22 2013-01-01 Apple Inc. Media storage structures for storing content, devices for using such structures, systems for distributing such structures
US7929698B2 (en) * 2007-06-15 2011-04-19 Sony Corporation Selective encryption to enable trick play with enhanced security
DE102008034308A1 (en) * 2007-07-24 2009-03-19 Discretix Technologies Ltd. Digital rights management facility, system and method using supplemental content
KR101439923B1 (en) * 2007-08-10 2014-09-17 에스케이플래닛 주식회사 Digital Rights Management and Method for Partial Encryption of Content
US20090106156A1 (en) * 2007-10-23 2009-04-23 Alcatel Lucent Network-based DRM enforcement
KR101478337B1 (en) * 2007-11-08 2015-01-02 삼성전자 주식회사 Method and apparatus for providing encrypted key based on DRM type of host device
EP2223232A4 (en) 2007-11-16 2015-02-25 Sonic Ip Inc Hierarchical and reduced index structures for multimedia files
US20110060688A1 (en) * 2007-11-23 2011-03-10 Media Patents, S.L. Apparatus and methods for the distribution of digital files
EP2215595B1 (en) * 2007-11-23 2012-02-22 Media Patents S.L. A process for the on-line distribution of audiovisual contents with advertisements, advertisement management system, digital rights management system and audiovisual content player provided with said systems
KR20090056651A (en) * 2007-11-30 2009-06-03 한국전자통신연구원 Apparatus and method for terminal with multiple conditional access applications in broadcast sysetem
US7996672B1 (en) * 2007-12-05 2011-08-09 Adobe Systems Incorporated Support for multiple digital rights management systems for same content
US8856861B2 (en) * 2007-12-20 2014-10-07 Samsung Electronics Co., Ltd. Generic rights token and DRM-related service pointers in a common protected content file
US8656424B2 (en) * 2007-12-31 2014-02-18 Digital Keystone, Inc. Distributed TV access system
EP2247107A1 (en) * 2007-12-31 2010-11-03 Digital Keystone, Inc. Distributed TV access system.
US8490127B2 (en) * 2007-12-31 2013-07-16 Digital Keystone, Inc. Distributed TV access system
US8997161B2 (en) 2008-01-02 2015-03-31 Sonic Ip, Inc. Application enhancement tracks
JP2009194860A (en) * 2008-02-18 2009-08-27 Toshiba Corp Transmitter, receiver, content transmitting and receiving system, content transmitting method, content receiving method, and program
US7965839B2 (en) * 2008-02-19 2011-06-21 Sony Corporation Encryption system for satellite delivered television
US8095991B2 (en) * 2008-02-26 2012-01-10 International Business Machines Corporation Digital rights management of streaming captured content based on criteria regulating a sequence of elements
US8185959B2 (en) 2008-02-26 2012-05-22 International Business Machines Corporation Digital rights management of captured content based on capture associated locations
US7987140B2 (en) * 2008-02-26 2011-07-26 International Business Machines Corporation Digital rights management of captured content based on criteria regulating a combination of elements
US7984097B2 (en) * 2008-03-18 2011-07-19 Media Patents, S.L. Methods for transmitting multimedia files and advertisements
ES2326949B1 (en) 2008-03-18 2010-07-14 Clarity Systems, S.L. PROCEDURE USED BY A STREAMING SERVER TO MAKE A TRANSMISSION OF A MULTIMEDIA FILE IN A DATA NETWORK.
US20100027796A1 (en) * 2008-08-01 2010-02-04 Disney Enterprises, Inc. Multi-encryption
KR101635876B1 (en) 2009-01-07 2016-07-04 쏘닉 아이피, 아이엔씨. Singular, collective and automated creation of a media guide for online content
US8904191B2 (en) * 2009-01-21 2014-12-02 Microsoft Corporation Multiple content protection systems in a file
US10057641B2 (en) * 2009-03-25 2018-08-21 Sony Corporation Method to upgrade content encryption
US9215423B2 (en) 2009-03-30 2015-12-15 Time Warner Cable Enterprises Llc Recommendation engine apparatus and methods
US11076189B2 (en) 2009-03-30 2021-07-27 Time Warner Cable Enterprises Llc Personal media channel apparatus and methods
US9154532B2 (en) 2009-04-27 2015-10-06 Zaron Remote Llc Methods and apparatus for transmitting multimedia files in a data network
IL199486A0 (en) 2009-06-22 2011-08-01 Nds Ltd Partial encryption using variable block-size parameters
IL199616A0 (en) 2009-06-28 2010-05-17 Chaim Shen Orr Pattern-free encryption
US9094713B2 (en) 2009-07-02 2015-07-28 Time Warner Cable Enterprises Llc Method and apparatus for network association of content
US9113042B2 (en) * 2009-08-28 2015-08-18 Broadcom Corporation Multi-wireless device channel communications
US8396055B2 (en) 2009-10-20 2013-03-12 Time Warner Cable Inc. Methods and apparatus for enabling media functionality in a content-based network
US8539535B2 (en) * 2009-11-30 2013-09-17 Time Warner Cable Enterprises Llc Methods and apparatus for supporting VOD requests in a system with hierarchical content stores
CA2782825C (en) 2009-12-04 2016-04-26 Divx, Llc Elementary bitstream cryptographic material transport systems and methods
EP2519909A4 (en) * 2009-12-31 2017-06-28 Nokia Technologies Oy Method and apparatus for a content protection
US20110179268A1 (en) * 2010-01-20 2011-07-21 Microsoft Corporation Protecting applications with key and usage policy
US9225520B2 (en) * 2010-05-28 2015-12-29 Adobe Systems Incorporated System and method for deterministic generation of a common content encryption key on distinct encryption units
US8997136B2 (en) 2010-07-22 2015-03-31 Time Warner Cable Enterprises Llc Apparatus and methods for packetized content delivery over a bandwidth-efficient network
US8631430B2 (en) * 2010-11-18 2014-01-14 Sony Corporation Enabling DRM-encrypted broadcast content through gateway into the home
US8914534B2 (en) 2011-01-05 2014-12-16 Sonic Ip, Inc. Systems and methods for adaptive bitrate streaming of media stored in matroska container files using hypertext transfer protocol
CN102082662B (en) * 2011-01-30 2012-04-25 山东量子科学技术研究院有限公司 Quantum safety communication method based on synchronous random number information base information retrieval
US9602414B2 (en) 2011-02-09 2017-03-21 Time Warner Cable Enterprises Llc Apparatus and methods for controlled bandwidth reclamation
JP2011233153A (en) * 2011-06-14 2011-11-17 Fuji Soft Inc Content distribution system
TWI459230B (en) 2011-08-08 2014-11-01 Ind Tech Res Inst Drm apparatus and drm method
US9467708B2 (en) 2011-08-30 2016-10-11 Sonic Ip, Inc. Selection of resolutions for seamless resolution switching of multimedia content
US8787570B2 (en) 2011-08-31 2014-07-22 Sonic Ip, Inc. Systems and methods for automatically genenrating top level index files
US8964977B2 (en) 2011-09-01 2015-02-24 Sonic Ip, Inc. Systems and methods for saving encoded media streamed using adaptive bitrate streaming
US8909922B2 (en) 2011-09-01 2014-12-09 Sonic Ip, Inc. Systems and methods for playing back alternative streams of protected content protected using common cryptographic information
US10445528B2 (en) * 2011-09-07 2019-10-15 Microsoft Technology Licensing, Llc Content handling for applications
US9008308B2 (en) * 2012-02-08 2015-04-14 Vixs Systems, Inc Container agnostic decryption device and methods for use therewith
CA2865548C (en) 2012-03-01 2021-03-02 Ologn Technologies Ag Systems, methods and apparatuses for the secure transmission and restricted use of media content
US9559845B2 (en) 2012-03-01 2017-01-31 Ologn Technologies Ag Systems, methods and apparatuses for the secure transmission of media content
US9467723B2 (en) 2012-04-04 2016-10-11 Time Warner Cable Enterprises Llc Apparatus and methods for automated highlight reel creation in a content delivery network
US8812839B2 (en) * 2012-07-31 2014-08-19 Adobe Systems Incorporated System and method for local generation of streaming content with a hint track
US11349699B2 (en) * 2012-08-14 2022-05-31 Netflix, Inc. Speculative pre-authorization of encrypted data streams
US20140082645A1 (en) 2012-09-14 2014-03-20 Peter Stern Apparatus and methods for providing enhanced or interactive features
US9313510B2 (en) 2012-12-31 2016-04-12 Sonic Ip, Inc. Use of objective quality measures of streamed content to reduce streaming bandwidth
US9191457B2 (en) 2012-12-31 2015-11-17 Sonic Ip, Inc. Systems, methods, and media for controlling delivery of content
US20140282786A1 (en) 2013-03-12 2014-09-18 Time Warner Cable Enterprises Llc Methods and apparatus for providing and uploading content to personalized network storage
US10397292B2 (en) 2013-03-15 2019-08-27 Divx, Llc Systems, methods, and media for delivery of content
US9906785B2 (en) 2013-03-15 2018-02-27 Sonic Ip, Inc. Systems, methods, and media for transcoding video data according to encoding parameters indicated by received metadata
US9094737B2 (en) 2013-05-30 2015-07-28 Sonic Ip, Inc. Network video streaming with trick play based on separate trick play files
US9247317B2 (en) 2013-05-30 2016-01-26 Sonic Ip, Inc. Content streaming with client device trick play index
US9967305B2 (en) 2013-06-28 2018-05-08 Divx, Llc Systems, methods, and media for streaming media content
US9317120B2 (en) * 2013-09-06 2016-04-19 Immersion Corporation Multiplexing and demultiplexing haptic signals
US20150082337A1 (en) * 2013-09-19 2015-03-19 Broadcom Corporation Pipelined encryption and packetization of audio video data
DE102013226802A1 (en) * 2013-12-20 2015-06-25 Siemens Aktiengesellschaft Privacy protection in a video stream using a redundant slice
US9866878B2 (en) 2014-04-05 2018-01-09 Sonic Ip, Inc. Systems and methods for encoding and playing back video at different frame rates using enhancement layers
KR101532927B1 (en) * 2014-05-21 2015-07-01 삼성전자주식회사 Method and apparatus for providing encrypted key based on DRM type of host device
MX2016015022A (en) 2014-08-07 2018-03-12 Sonic Ip Inc Systems and methods for protecting elementary bitstreams incorporating independently encoded tiles.
US9628855B2 (en) * 2014-10-08 2017-04-18 Lattice Semiconductor Corporation Secure internal control for encrypting video data
WO2016112112A1 (en) 2015-01-06 2016-07-14 Sonic Ip, Inc. Systems and methods for encoding and sharing content between devices
US10116676B2 (en) 2015-02-13 2018-10-30 Time Warner Cable Enterprises Llc Apparatus and methods for data collection, analysis and service modification based on online activity
US10032034B2 (en) 2015-10-06 2018-07-24 Microsoft Technology Licensing, Llc MPEG transport frame synchronization
US10068140B2 (en) * 2016-12-02 2018-09-04 Bayerische Motoren Werke Aktiengesellschaft System and method for estimating vehicular motion based on monocular video data
US10951591B1 (en) * 2016-12-20 2021-03-16 Wells Fargo Bank, N.A. SSL encryption with reduced bandwidth
US10498795B2 (en) 2017-02-17 2019-12-03 Divx, Llc Systems and methods for adaptive switching between multiple content delivery networks during adaptive bitrate streaming
CN108322778B (en) * 2018-02-09 2020-11-20 珠海迈科智能科技股份有限公司 Method and device for increasing scrambling speed of DVB data stream
US11520915B2 (en) 2020-03-26 2022-12-06 Synamedia Limited Secure fast channel change

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5805700A (en) * 1996-10-15 1998-09-08 Intel Corporation Policy based selective encryption of compressed video data
US5809147A (en) * 1994-03-18 1998-09-15 Koninklijke Ptt Nederland Device for cryptographically processing data packets and method of generating cryptographic processing data
US5870474A (en) * 1995-12-04 1999-02-09 Scientific-Atlanta, Inc. Method and apparatus for providing conditional access in connection-oriented, interactive networks with a multiplicity of service providers
US5933501A (en) * 1996-08-01 1999-08-03 Harris Corporation `Virtual` encryption scheme combining different encryption operators into compound-encryption mechanism
WO2000031964A1 (en) * 1998-11-20 2000-06-02 Telefonaktiebolaget Lm Ericsson (Publ) A method and a device for encryption of images

Family Cites Families (214)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US555305A (en) * 1896-02-25 Electric lamp for vehicles
US3852519A (en) 1972-10-20 1974-12-03 Optical Systems Corp Video and audio encoding/decoding system employing suppressed carrier modulation
GB2073534B (en) 1980-04-02 1984-04-04 Sony Corp Error concealment in digital television signals
GB2084432A (en) * 1980-09-18 1982-04-07 Sony Corp Error concealment in digital television signals
US4521853A (en) 1982-06-30 1985-06-04 Texas Instruments Incorporated Secure microprocessor/microcomputer with secured memory
CA1338158C (en) 1982-07-15 1996-03-12 John D. Lowry Encryption and decryption (scrambling and unscrambling) of video signals
US4785361A (en) 1982-11-08 1988-11-15 Vault Corporation Method and apparatus for frustrating the unauthorized copying of recorded data
US4634808A (en) * 1984-03-15 1987-01-06 M/A-Com Government Systems, Inc. Descrambler subscriber key production system utilizing key seeds stored in descrambler
US4712238A (en) 1984-06-08 1987-12-08 M/A-Com Government Systems, Inc. Selective-subscription descrambling
JPS6120442A (en) 1984-07-09 1986-01-29 Toshiba Corp Chargeable broadcasting system
JPH0746864B2 (en) 1984-08-22 1995-05-17 ソニー株式会社 High efficiency encoder
US4887296A (en) 1984-10-26 1989-12-12 Ricoh Co., Ltd. Cryptographic system for direct broadcast satellite system
CA1251555A (en) 1984-12-19 1989-03-21 Tetsujiro Kondo High efficiency technique for coding a digital video signal
JPH0793724B2 (en) 1984-12-21 1995-10-09 ソニー株式会社 High efficiency coding apparatus and coding method for television signal
EP0200310B1 (en) 1985-05-01 1993-08-11 General Instrument Corporation Direct broadcast satellite signal transmission system
JPS61264371A (en) * 1985-05-20 1986-11-22 森　亮一 Data protection system
JP2670259B2 (en) * 1985-11-29 1997-10-29 ソニー株式会社 High efficiency coding device
JPH0746862B2 (en) 1985-11-30 1995-05-17 ソニー株式会社 Frame dropping compression encoding and decoding method
JP2612557B2 (en) 1985-12-18 1997-05-21 ソニー株式会社 Data transmission receiving system and data decoding device
JPS62231569A (en) * 1986-03-31 1987-10-12 Fuji Photo Film Co Ltd Quantizing method for estimated error
NL8600980A (en) 1986-04-18 1987-11-16 Philips Nv METHOD FOR TRANSMITTING UPDATE INFORMATION FOR A STILL VIDEO IMAGE
US4944006A (en) 1987-03-12 1990-07-24 Zenith Electronics Corporation Secure data packet transmission system and method
JP2508439B2 (en) 1987-05-29 1996-06-19 ソニー株式会社 High efficiency encoder
ATE74219T1 (en) * 1987-06-02 1992-04-15 Siemens Ag METHOD FOR DETERMINING MOTION VECTOR FIELDS FROM DIGITAL IMAGE SEQUENCES.
US5122873A (en) 1987-10-05 1992-06-16 Intel Corporation Method and apparatus for selectively encoding and decoding a digital motion video signal at multiple resolution levels
JP2629238B2 (en) 1988-02-05 1997-07-09 ソニー株式会社 Decoding device and decoding method
US4995080A (en) 1988-08-04 1991-02-19 Zenith Electronics Corporation Television signal scrambling system and method
US5247575A (en) 1988-08-16 1993-09-21 Sprague Peter J Information distribution system
US4953023A (en) 1988-09-29 1990-08-28 Sony Corporation Coding apparatus for encoding and compressing video data
JP2900385B2 (en) 1988-12-16 1999-06-02 ソニー株式会社 Framing circuit and method
US5144662A (en) 1989-02-08 1992-09-01 U.S. Philips Corporation Public communication system comprising distributed stations, and station and sub-station for use in such a communication system
JP3018366B2 (en) 1989-02-08 2000-03-13 ソニー株式会社 Video signal processing circuit
US4989245A (en) 1989-03-06 1991-01-29 General Instrument Corporation Controlled authorization of descrambling of scrambled programs broadcast between different jurisdictions
US5494748A (en) * 1989-04-17 1996-02-27 Ecco Gleittechnik Gmbh Reinforcement fibers and/or process fibers based on plant fibers
US5208816A (en) 1989-08-18 1993-05-04 At&T Bell Laboratories Generalized viterbi decoding algorithms
US6519693B1 (en) * 1989-08-23 2003-02-11 Delta Beta, Pty, Ltd. Method and system of program transmission optimization using a redundant transmission sequence
JPH03141752A (en) 1989-10-27 1991-06-17 Hitachi Ltd Picture signal transmitting method
US5237610A (en) 1990-02-01 1993-08-17 Scientific-Atlanta, Inc. Independent external security module for a digitally upgradeable television signal decoder
US5682425A (en) * 1990-04-23 1997-10-28 Canon Kabushiki Kaisha Information signal transmission system
JPH0474063A (en) 1990-07-13 1992-03-09 Matsushita Electric Ind Co Ltd Coding method for picture
US5018197A (en) 1990-07-30 1991-05-21 Zenith Electronics Corporation Secure video decoder system
JP2650472B2 (en) 1990-07-30 1997-09-03 松下電器産業株式会社 Digital signal recording apparatus and digital signal recording method
JPH09233067A (en) * 1990-07-31 1997-09-05 Hiroichi Okano Method and device for processing intelligence information
JP2969867B2 (en) 1990-08-31 1999-11-02 ソニー株式会社 High-efficiency encoder for digital image signals.
GB9019538D0 (en) 1990-09-07 1990-10-24 Philips Electronic Associated Tracking a moving object
US5416651A (en) 1990-10-31 1995-05-16 Sony Corporation Apparatus for magnetically recording digital data
US5144664A (en) 1990-11-16 1992-09-01 General Instrument Corporation Apparatus and method for upgrading terminals to maintain a secure communication network
JP2906671B2 (en) 1990-12-28 1999-06-21 ソニー株式会社 Highly efficient digital video signal encoding apparatus and method
EP0495501B1 (en) 1991-01-17 1998-07-08 Sharp Kabushiki Kaisha Image coding and decoding system using an orthogonal transform and bit allocation method suitable therefore
US5091936A (en) 1991-01-30 1992-02-25 General Instrument Corporation System for communicating television signals or a plurality of digital audio signals in a standard television line allocation
US5138659A (en) 1991-05-02 1992-08-11 General Instrument Corporation Conversion of television signal formats with retention of common control data stream
JPH04358486A (en) 1991-06-04 1992-12-11 Toshiba Corp High efficiency code signal processing unit
JP2766919B2 (en) 1991-06-07 1998-06-18 三菱電機株式会社 Digital signal recording / reproducing device, digital signal recording device, digital signal reproducing device
US5263026A (en) 1991-06-27 1993-11-16 Hughes Aircraft Company Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
DE69217150T2 (en) 1991-09-30 1997-07-17 Philips Electronics Nv Motion vector estimation, motion picture coding and storage
MY108367A (en) 1991-09-30 1996-09-30 Thomson Consumer Electronics S A Method and apparatus for secure transmisson of video signals.
JPH05103309A (en) 1991-10-04 1993-04-23 Canon Inc Method and device for transmitting information
US5398078A (en) 1991-10-31 1995-03-14 Kabushiki Kaisha Toshiba Method of detecting a motion vector in an image coding apparatus
US5724091A (en) * 1991-11-25 1998-03-03 Actv, Inc. Compressed digital data interactive program system
JP3278881B2 (en) 1991-12-13 2002-04-30 ソニー株式会社 Image signal generator
AU693766B2 (en) 1992-01-08 1998-07-09 Multichannel Communication Sciences, Inc. Multichannel television signal scrambling and descrambling system and method
US6208805B1 (en) 1992-02-07 2001-03-27 Max Abecassis Inhibiting a control function from interfering with a playing of a video
JP3259323B2 (en) 1992-04-13 2002-02-25 ソニー株式会社 De-interleave circuit
US5359694A (en) 1992-07-27 1994-10-25 Teknekron Communications Systems, Inc. Method and apparatus for converting image data
US5438369A (en) 1992-08-17 1995-08-01 Zenith Electronics Corporation Digital data interleaving system with improved error correctability for vertically correlated interference
US5481554A (en) 1992-09-02 1996-01-02 Sony Corporation Data transmission apparatus for transmitting code data
US5400401A (en) 1992-10-30 1995-03-21 Scientific Atlanta, Inc. System and method for transmitting a plurality of digital services
US5319707A (en) 1992-11-02 1994-06-07 Scientific Atlanta System and method for multiplexing a plurality of digital program services for transmission to remote locations
US5341425A (en) 1992-12-02 1994-08-23 Scientific Atlanta, Inc. Methods and apparatus for uniquely encrypting data at a plurality of data transmission sites for transmission to a reception site
US5726711A (en) 1993-01-13 1998-03-10 Hitachi America, Ltd. Intra-coded video frame data processing methods and apparatus
US5805762A (en) 1993-01-13 1998-09-08 Hitachi America, Ltd. Video recording device compatible transmitter
US5325432A (en) 1993-02-04 1994-06-28 Motorola, Inc. Method for updating encryption key information in communication units
US5416847A (en) 1993-02-12 1995-05-16 The Walt Disney Company Multi-band, digital audio noise filter
US5444491A (en) 1993-02-26 1995-08-22 Massachusetts Institute Of Technology Television system with multiple transmission formats
US5444782A (en) 1993-03-09 1995-08-22 Uunet Technologies, Inc. Computer network encryption/decryption device
US5444763A (en) 1993-06-17 1995-08-22 Research In Motion Limited Translation and connection device for radio frequency point of sale transaction systems
KR960015357B1 (en) 1993-07-16 1996-11-09 대우전자 주식회사 Communication system of scrambling and descrambling for radio program signal
JP2707950B2 (en) 1993-07-30 1998-02-04 ソニー株式会社 Digital image information processing device
US5381481A (en) 1993-08-04 1995-01-10 Scientific-Atlanta, Inc. Method and apparatus for uniquely encrypting a plurality of services at a transmission site
US5319712A (en) 1993-08-26 1994-06-07 Motorola, Inc. Method and apparatus for providing cryptographic protection of a data stream in a communication system
KR960012931B1 (en) 1993-08-31 1996-09-25 대우전자 주식회사 Channel error concealing method for classified vector quantized video
JP3590996B2 (en) 1993-09-30 2004-11-17 ソニー株式会社 Hierarchical encoding and decoding apparatus for digital image signal
US5663764A (en) 1993-09-30 1997-09-02 Sony Corporation Hierarchical encoding and decoding apparatus for a digital image signal
US5617333A (en) 1993-11-29 1997-04-01 Kokusai Electric Co., Ltd. Method and apparatus for transmission of image data
US5455862A (en) * 1993-12-02 1995-10-03 Crest Industries, Inc. Apparatus and method for encrypting communications without exchanging an encryption key
JP3271108B2 (en) 1993-12-03 2002-04-02 ソニー株式会社 Apparatus and method for processing digital image signal
FR2715256B1 (en) 1994-01-19 1996-02-16 France Telecom Procedures for transmitting and receiving conditional access programs managed by the same operator.
US5491748A (en) 1994-03-01 1996-02-13 Zenith Electronics Corporation Enhanced security for a cable system
US5420866A (en) 1994-03-29 1995-05-30 Scientific-Atlanta, Inc. Methods for providing conditional access information to decoders in a packet-based multiplexed communications system
FR2718594B1 (en) 1994-04-06 1996-04-26 France Telecom Method for broadcasting programs with progressive conditional access and separating the flow of information.
US5459789A (en) 1994-04-22 1995-10-17 Thomson Consumer Electronics Packet TV program component detector
US5666293A (en) 1994-05-27 1997-09-09 Bell Atlantic Network Services, Inc. Downloading operating system software through a broadcast channel
US5768539A (en) 1994-05-27 1998-06-16 Bell Atlantic Network Services, Inc. Downloading applications software through a broadcast channel
US6185546B1 (en) * 1995-10-04 2001-02-06 Intel Corporation Apparatus and method for providing secured communications
US5539828A (en) 1994-05-31 1996-07-23 Intel Corporation Apparatus and method for providing secured communications
US5473692A (en) 1994-09-07 1995-12-05 Intel Corporation Roving software license for a hardware agent
US5606359A (en) 1994-06-30 1997-02-25 Hewlett-Packard Company Video on demand system with multiple data sources configured to provide vcr-like services
US5535276A (en) 1994-11-09 1996-07-09 Bell Atlantic Network Services, Inc. Yaksha, an improved system and method for securing communications using split private key asymmetric cryptography
US5518934A (en) * 1994-07-21 1996-05-21 Trustees Of Princeton University Method of fabricating multiwavelength infrared focal plane array detector
US5574787A (en) 1994-07-25 1996-11-12 Ryan; John O. Apparatus and method for comprehensive copy protection for video platforms and unprotected source material
US5539823A (en) 1994-07-27 1996-07-23 General Instrument Corporation Of Delaware Subscription television picture scrambling and descrambling system providing compatibility with different such systems
US5629981A (en) 1994-07-29 1997-05-13 Texas Instruments Incorporated Information management and security system
US5796829A (en) 1994-09-09 1998-08-18 The Titan Corporation Conditional access system
US5652795A (en) 1994-11-14 1997-07-29 Hughes Electronics Method and apparatus for an adapter card providing conditional access in a communication system
KR0152788B1 (en) * 1994-11-26 1998-10-15 이헌조 Copy protecting method and apparatus of digital image system
KR100332743B1 (en) 1994-11-26 2002-11-07 엘지전자주식회사 Device and method for preventing illegal copy or unauthorized watching of digital image
US5485577A (en) 1994-12-16 1996-01-16 General Instrument Corporation Of Delaware Method and apparatus for incremental delivery of access rights
EP0766471A1 (en) * 1994-12-27 1997-04-02 Kabushiki Kaisha Toshiba Transmitter, receiver, communication processing system integrating them, and digital television broadcasting system
US5590202A (en) 1995-01-18 1996-12-31 Zenith Electronics Corporation Countdown system for conditional access module
US5583863A (en) 1995-01-31 1996-12-10 Bell Atlantic Network Services, Inc. Full service network using asynchronous transfer mode multiplexing
US6937729B2 (en) * 1995-04-03 2005-08-30 Scientific-Atlanta, Inc. Representing entitlements to service in a conditional access system
US5608448A (en) 1995-04-10 1997-03-04 Lockheed Martin Corporation Hybrid architecture for video on demand server
US5583576A (en) 1995-09-11 1996-12-10 Oktv, Inc. Rating-dependent parental lock-out for television reception
US5582470A (en) 1995-09-12 1996-12-10 Silitek Corporation Scanner housing
KR0155900B1 (en) 1995-10-18 1998-11-16 김광호 Phase error detecting method and phase tracking loop circuit
US5742680A (en) 1995-11-13 1998-04-21 E Star, Inc. Set top box for receiving and decryption and descrambling a plurality of satellite television signals
US5999622A (en) * 1995-11-22 1999-12-07 Microsoft Corporation Method and apparatus for protecting widely distributed digital information
JP3416007B2 (en) 1995-12-06 2003-06-16 インターナショナル・ビジネス・マシーンズ・コーポレーション Apparatus and method for screening audiovisual material
US5751280A (en) 1995-12-11 1998-05-12 Silicon Graphics, Inc. System and method for media stream synchronization with a base atom index file and an auxiliary atom index file
US5802176A (en) 1996-03-22 1998-09-01 Activcard System for controlling access to a function, using a plurality of dynamic encryption variables
US6055314A (en) * 1996-03-22 2000-04-25 Microsoft Corporation System and method for secure purchase and delivery of video content programs
US5754658A (en) 1996-04-19 1998-05-19 Intel Corporation Adaptive encryption to avoid processor oversaturation
US6445738B1 (en) * 1996-04-25 2002-09-03 Opentv, Inc. System and method for creating trick play video streams from a compressed normal play video bitstream
US5751813A (en) 1996-04-29 1998-05-12 Motorola, Inc. Use of an encryption server for encrypting messages
US5894320A (en) * 1996-05-29 1999-04-13 General Instrument Corporation Multi-channel television system with viewer-selectable video and audio
US6065050A (en) * 1996-06-05 2000-05-16 Sun Microsystems, Inc. System and method for indexing between trick play and normal play video streams in a video delivery system
US5894516A (en) * 1996-07-10 1999-04-13 Ncr Corporation Broadcast software distribution
FR2751817B1 (en) * 1996-07-29 1998-09-11 Thomson Multimedia Sa CONDITIONAL ACCESS SYSTEM USING MULTIPLE ENCRYPTION KEY MESSAGES
US6058192A (en) * 1996-08-06 2000-05-02 Greg Jarque Universal signal processor and method of processing
FR2752655B1 (en) 1996-08-20 1998-09-18 France Telecom METHOD AND EQUIPMENT FOR ALLOCATING A COMPLEMENTARY CONDITIONAL ACCESS TO A TELEVISION PROGRAM ALREADY WITH CONDITIONAL ACCESS
US6061451A (en) * 1996-09-03 2000-05-09 Digital Vision Laboratories Corporation Apparatus and method for receiving and decrypting encrypted data and protecting decrypted data from illegal use
KR100238098B1 (en) * 1996-09-16 2000-01-15 윤종용 Apparatus for synchronously reproducing multi-angle data
US5825879A (en) 1996-09-30 1998-10-20 Intel Corporation System and method for copy-protecting distributed video content
US6023509A (en) * 1996-09-30 2000-02-08 Intel Corporation Digital signature purpose encoding
US6012144A (en) * 1996-10-08 2000-01-04 Pickett; Thomas E. Transaction security method and apparatus
US5828753A (en) * 1996-10-25 1998-10-27 Intel Corporation Circuit and method for ensuring interconnect security within a multi-chip integrated circuit package
JPH10145773A (en) * 1996-11-14 1998-05-29 Toshiba Corp Method for ciphering animation data, computer system applying the method and dynamic image data encoding/ decoding device
US6192131B1 (en) * 1996-11-15 2001-02-20 Securities Industry Automation Corporation Enabling business transactions in computer networks
US6543053B1 (en) * 1996-11-27 2003-04-01 University Of Hong Kong Interactive video-on-demand system
US6016348A (en) * 1996-11-27 2000-01-18 Thomson Consumer Electronics, Inc. Decoding system and data format for processing and storing encrypted broadcast, cable or satellite video data
US5818934A (en) 1996-12-18 1998-10-06 Phillips Electronics North America Corporation Method and apparatus for providing a cryptographically secure interface between the decryption engine and the system decoder of a digital television receiver
US6021201A (en) * 1997-01-07 2000-02-01 Intel Corporation Method and apparatus for integrated ciphering and hashing
US5850218A (en) 1997-02-19 1998-12-15 Time Warner Entertainment Company L.P. Inter-active program guide with default selection control
US6049613A (en) * 1997-03-07 2000-04-11 Jakobsson; Markus Method and apparatus for encrypting, decrypting, and providing privacy for data values
AU746178B2 (en) * 1997-03-21 2002-04-18 Thomson Licensing S.A. Method of downloading of data to an MPEG receiver/decoder and MPEG transmission system for implementing the same
JP3085245B2 (en) * 1997-05-14 2000-09-04 日本電気株式会社 Document management method, document management system, and machine-readable recording medium recording program
JP3965722B2 (en) * 1997-05-28 2007-08-29 ブラザー工業株式会社 MPEG stream data scrambling apparatus and scrambling method
US6057872A (en) * 1997-07-09 2000-05-02 General Instrument Corporation Digital coupons for pay televisions
US6230194B1 (en) * 1997-07-14 2001-05-08 Freegate Corporation Upgrading a secure network interface
US6011849A (en) * 1997-08-28 2000-01-04 Syndata Technologies, Inc. Encryption-based selection system for steganography
US6138237A (en) * 1997-09-04 2000-10-24 Bistream Inc. Apparatuses, methods, and media for authoring, distributing, and using software resources with purposely restricted use
EP0901261B1 (en) * 1997-09-05 2013-01-09 Hitachi, Ltd. Transport protocol conversion method and protocol conversion equipment
US6378130B1 (en) * 1997-10-20 2002-04-23 Time Warner Entertainment Company Media server interconnect architecture
US6070245A (en) * 1997-11-25 2000-05-30 International Business Machines Corporation Application interface method and system for encryption control
WO1999030501A1 (en) * 1997-12-09 1999-06-17 Ictv, Inc. Virtual lan printing over interactive cable television system
US6505032B1 (en) * 2000-05-26 2003-01-07 Xtremespectrum, Inc. Carrierless ultra wideband wireless signals for conveying application data
US6064748A (en) * 1998-01-16 2000-05-16 Hewlett-Packard Company Method and apparatus for embedding and retrieving additional data in an encoded data stream
US6069647A (en) * 1998-01-29 2000-05-30 Intel Corporation Conditional access and content security method
EP0936774A1 (en) * 1998-02-13 1999-08-18 CANAL+ Société Anonyme Recording of scrambled digital data
US6510554B1 (en) * 1998-04-27 2003-01-21 Diva Systems Corporation Method for generating information sub-streams for FF/REW applications
US6189096B1 (en) * 1998-05-06 2001-02-13 Kyberpass Corporation User authentification using a virtual private key
EP0962923B1 (en) * 1998-06-04 2011-11-16 FUJIFILM Corporation Information recording medium and novel oxonol compound
US6529526B1 (en) * 1998-07-13 2003-03-04 Thomson Licensing S.A. System for processing programs and program content rating information derived from multiple broadcast sources
US6226618B1 (en) * 1998-08-13 2001-05-01 International Business Machines Corporation Electronic content delivery system
US7457415B2 (en) * 1998-08-20 2008-11-25 Akikaze Technologies, Llc Secure information distribution system utilizing information segment scrambling
US6351538B1 (en) * 1998-10-06 2002-02-26 Lsi Logic Corporation Conditional access and copy protection scheme for MPEG encoded video data
JP2000196585A (en) * 1998-10-08 2000-07-14 Matsushita Electric Ind Co Ltd Recording medium recording contents, digital data recorder, digital data reproducer, contents packaging device generating package, contents reproducer, computer readable recording medium, recording method, reproducing method, packaging method and system transport stream processor consisting of contents packaging device and contents reproducer
US6230266B1 (en) * 1999-02-03 2001-05-08 Sun Microsystems, Inc. Authentication system and process
US6505299B1 (en) * 1999-03-01 2003-01-07 Sharp Laboratories Of America, Inc. Digital image scrambling for image coding systems
US6229895B1 (en) * 1999-03-12 2001-05-08 Diva Systems Corp. Secure distribution of video on-demand
US6240553B1 (en) * 1999-03-31 2001-05-29 Diva Systems Corporation Method for providing scalable in-band and out-of-band access within a video-on-demand environment
US7530877B1 (en) * 1999-06-03 2009-05-12 Micron Technology, Inc. Semiconductor processor systems, a system configured to provide a semiconductor workpiece process fluid
US6549229B1 (en) * 1999-07-26 2003-04-15 C-Cubed Corporation Small, portable, self-contained, video teleconferencing system
JP2001069480A (en) * 1999-08-30 2001-03-16 Matsushita Electric Ind Co Ltd Conditional access system
US6697944B1 (en) * 1999-10-01 2004-02-24 Microsoft Corporation Digital content distribution, transmission and protection system and method, and portable device for use therewith
JP3748352B2 (en) * 1999-12-16 2006-02-22 富士通株式会社 Data management method, recording medium for recording image generation method program, and recording medium for recording image restoration method program
US6772340B1 (en) * 2000-01-14 2004-08-03 Microsoft Corporation Digital rights management system operating on computing device and having black box tied to computing device
US6857132B1 (en) * 2000-01-14 2005-02-15 Terayon Communication Systems, Inc. Head end multiplexer to select and transmit video-on-demand and other requested programs and services
EP1134977A1 (en) * 2000-03-06 2001-09-19 Irdeto Access B.V. Method and system for providing copies of scrambled content with unique watermarks, and system for descrambling scrambled content
CA2401981C (en) * 2000-03-06 2011-07-05 Entriq Method and system to uniquely associate multicast content with each of multiple recipients
KR100611965B1 (en) * 2000-03-28 2006-08-11 삼성전자주식회사 Recording medium for storing encrypted audio data, apparatus and method of recording the same and appraratus and method of reproducing the same
CN1193368C (en) * 2000-03-28 2005-03-16 三星电子株式会社 Storage recording medium of scrambling audio data and apparatus and method for recording and reproducing thereof
US6684250B2 (en) * 2000-04-03 2004-01-27 Quova, Inc. Method and apparatus for estimating a geographic location of a networked entity
JP2001308812A (en) * 2000-04-24 2001-11-02 Nec Microsystems Ltd Method for separation processing of transport stream for digital television and its recording medium
DE60104307T2 (en) * 2000-05-10 2005-08-25 Koninklijke Philips Electronics N.V. COPY PROTECTION SYSTEM
JP2001359070A (en) * 2000-06-14 2001-12-26 Canon Inc Data processing unit, data processing method and computer-readable storage medium
FR2812781A1 (en) * 2000-08-04 2002-02-08 Thomson Multimedia Sa METHOD FOR SECURE DISTRIBUTION OF DIGITAL DATA REPRESENTATIVE OF MULTIMEDIA CONTENT
US6453115B1 (en) * 2000-08-31 2002-09-17 Keen Personal Media, Inc. Digital video recording system which generates an index data structure for displaying a video stream in trickplay mode
US20020046406A1 (en) * 2000-10-18 2002-04-18 Majid Chelehmal On-demand data system
ATE329442T1 (en) 2000-12-18 2006-06-15 Koninkl Philips Electronics Nv POINTER TO ENCRYPTED DATA IN AN RTP HEADDER
JP4281252B2 (en) * 2001-01-16 2009-06-17 ソニー株式会社 Information recording apparatus, information reproducing apparatus, information recording method, information reproducing method, information recording medium, and program storage medium
US6976166B2 (en) * 2001-02-06 2005-12-13 Hewlett-Packard Development Company, L.P. Method and apparatus for partial encryption of content
JP4271876B2 (en) * 2001-02-20 2009-06-03 株式会社日立製作所 Digital content generation method and related apparatus
US20020150239A1 (en) * 2001-04-17 2002-10-17 Vidius Inc. Method for personalized encryption in an un-trusted environment
US7386129B2 (en) * 2001-05-30 2008-06-10 Digeo, Inc. System and method for multimedia content simulcast
US7350082B2 (en) * 2001-06-06 2008-03-25 Sony Corporation Upgrading of encryption
US7127619B2 (en) * 2001-06-06 2006-10-24 Sony Corporation Decoding and decryption of partially encrypted information
JP2003013876A (en) * 2001-06-29 2003-01-15 Toyota Industries Corp Oil leak preventive structure of vacuum pump
US7356245B2 (en) * 2001-06-29 2008-04-08 International Business Machines Corporation Methods to facilitate efficient transmission and playback of digital information
US7421411B2 (en) * 2001-07-06 2008-09-02 Nokia Corporation Digital rights management in a mobile communications environment
US20030012286A1 (en) * 2001-07-10 2003-01-16 Motorola, Inc. Method and device for suspecting errors and recovering macroblock data in video coding
US6925180B2 (en) * 2001-09-27 2005-08-02 Sony Corporation PC card recorder
US7369520B2 (en) * 2001-10-02 2008-05-06 Nokia Corporation Internet protocol address to packet identifier mapping
US7206501B2 (en) * 2001-10-12 2007-04-17 The Directv Group, Inc. Method and apparatus for identifying MPEG picture coding types
US20030077071A1 (en) * 2001-10-23 2003-04-24 Shu Lin Fast forward trick mode and reverse trick mode using an information file
US7242773B2 (en) * 2002-09-09 2007-07-10 Sony Corporation Multiple partial encryption using retuning
US20040021764A1 (en) * 2002-01-28 2004-02-05 Be Here Corporation Visual teleconferencing apparatus
US7328345B2 (en) * 2002-01-29 2008-02-05 Widevine Technologies, Inc. Method and system for end to end securing of content for video on demand
US20040010717A1 (en) * 2002-01-29 2004-01-15 Intertainer Asia Pte Ltd. Apparatus and method for preventing digital media piracy
US7376235B2 (en) * 2002-04-30 2008-05-20 Microsoft Corporation Methods and systems for frustrating statistical attacks by injecting pseudo data into a data system
US7167560B2 (en) * 2002-08-08 2007-01-23 Matsushita Electric Industrial Co., Ltd. Partial encryption of stream-formatted media
US7295673B2 (en) * 2002-10-23 2007-11-13 Divx, Inc. Method and system for securing compressed digital video
US20050066357A1 (en) * 2003-09-22 2005-03-24 Ryal Kim Annon Modifying content rating
US20050071663A1 (en) * 2003-09-26 2005-03-31 General Instrument Corporation Separation of copy protection rules for digital rights management

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5809147A (en) * 1994-03-18 1998-09-15 Koninklijke Ptt Nederland Device for cryptographically processing data packets and method of generating cryptographic processing data
US5870474A (en) * 1995-12-04 1999-02-09 Scientific-Atlanta, Inc. Method and apparatus for providing conditional access in connection-oriented, interactive networks with a multiplicity of service providers
US5933501A (en) * 1996-08-01 1999-08-03 Harris Corporation `Virtual` encryption scheme combining different encryption operators into compound-encryption mechanism
US5805700A (en) * 1996-10-15 1998-09-08 Intel Corporation Policy based selective encryption of compressed video data
WO2000031964A1 (en) * 1998-11-20 2000-06-02 Telefonaktiebolaget Lm Ericsson (Publ) A method and a device for encryption of images

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DONDETI ET AL.: "A dual encryption protocol for scalable secure multicasting", 1999 INTERNATIONAL SYMPOSIUM ON COMPUTERS & COMMUNICATION, 6 July 1999 (1999-07-06) - 8 July 1999 (1999-07-08), pages 1 - 15, XP002230530 *
LOOKABAUGH ET AL.: "Selective encryption and MPEG-2", ACM MULTIMEDIA '03, November 2003 (2003-11-01), XP008100910 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8966550B2 (en) 2002-10-04 2015-02-24 Cisco Technology, Inc. Home communication systems
US7865925B2 (en) 2003-01-15 2011-01-04 Robertson Neil C Optimization of a full duplex wideband communications system
US8700535B2 (en) 2003-02-25 2014-04-15 Microsoft Corporation Issuing a publisher use license off-line in a digital rights management (DRM) system
US8781969B2 (en) 2005-05-20 2014-07-15 Microsoft Corporation Extensible media rights

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