WO2002091743A3 - Encoding and decoding methods for secure scalable streaming and related systems - Google Patents

Encoding and decoding methods for secure scalable streaming and related systems Download PDF

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Publication number
WO2002091743A3
WO2002091743A3 PCT/US2002/014225 US0214225W WO02091743A3 WO 2002091743 A3 WO2002091743 A3 WO 2002091743A3 US 0214225 W US0214225 W US 0214225W WO 02091743 A3 WO02091743 A3 WO 02091743A3
Authority
WO
WIPO (PCT)
Prior art keywords
encoding
data
present
related systems
decoding methods
Prior art date
Application number
PCT/US2002/014225
Other languages
French (fr)
Other versions
WO2002091743A2 (en
Inventor
Susie J Wee
John G Apostolopoulos
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Priority to JP2002588077A priority Critical patent/JP2005507577A/en
Priority to EP02729138A priority patent/EP1417834B1/en
Publication of WO2002091743A2 publication Critical patent/WO2002091743A2/en
Publication of WO2002091743A3 publication Critical patent/WO2002091743A3/en

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/70—Media network packetisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234363—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/44012—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving rendering scenes according to scene graphs, e.g. MPEG-4 scene graphs
    • 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

Abstract

A method and system for securely and scalably encoding data are disclosed. A method and system for decoding data which has been securely and scalably encoding are also disclosed. In one encoding method embodiment, the present invention recites receiving data. The present method then segments the data into corresponding regions. The regions are then scalably encoded into scalable data. The present embodiment then progressively encrypts the scalable data to generate progressively encrypted scalable data. Next, the present embodiment, packetizes the progressively encrypted scalable data.
PCT/US2002/014225 2001-05-04 2002-05-03 Encoding and decoding methods for secure scalable streaming and related systems WO2002091743A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2002588077A JP2005507577A (en) 2001-05-04 2002-05-03 Secure and scalable streaming encoding and decoding methods and related systems
EP02729138A EP1417834B1 (en) 2001-05-04 2002-05-03 Encoding and decoding methods for secure scalable streaming and related systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/849,794 2001-05-04
US09/849,794 US7184548B2 (en) 2001-05-04 2001-05-04 Encoding and decoding methods for secure scalable streaming and related systems

Publications (2)

Publication Number Publication Date
WO2002091743A2 WO2002091743A2 (en) 2002-11-14
WO2002091743A3 true WO2002091743A3 (en) 2004-03-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/014225 WO2002091743A2 (en) 2001-05-04 2002-05-03 Encoding and decoding methods for secure scalable streaming and related systems

Country Status (4)

Country Link
US (3) US7184548B2 (en)
EP (1) EP1417834B1 (en)
JP (1) JP2005507577A (en)
WO (1) WO2002091743A2 (en)

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Also Published As

Publication number Publication date
WO2002091743A2 (en) 2002-11-14
US20070036354A1 (en) 2007-02-15
EP1417834A2 (en) 2004-05-12
JP2005507577A (en) 2005-03-17
EP1417834B1 (en) 2011-07-06
US20030041258A1 (en) 2003-02-27
US7184548B2 (en) 2007-02-27
US7463735B2 (en) 2008-12-09
US20020164018A1 (en) 2002-11-07

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