Unified rights management for ipmp system

• US 20040093337A1
• Filed: 09/17/2003
• Published: 05/13/2004
• Est. Priority Date: 08/09/2001
• Status: Abandoned Application

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Senoh, Takanori, Ji, Mi, Shen, Sheng Mei, Huang, Zhongyang
• Application Number:
  US10/471,281
• Publication Number:
  US 20040093337A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04N 21/234318 by decomposing into objects, e.g. MPEG-4 objects
• CPC Class Codes: H04N 21/23614 Multiplexing of additional data and video streams arrangements for simultaneous broadcast of plural pieces of information H04H20/28
• CPC Class Codes: H04N 21/2541 Rights Management protecting software against unauthorised usage in a vending or licensing environment G06F21/10; security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/44204 Monitoring of content usage, e.g. the number of times a movie has been viewed, copied or the amount which has been watched monitoring of user activities for profile generation for accessing a video database G06F16/739; protecting generic digital content where the protection is independent of the precise nature of the content G06F21/10; arrangements for monitoring the use made of the broadcast services in broadcast systems H04H60/31
• CPC Class Codes: H04N 21/4627 Rights management associated to the content security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/835 Generation of protective data, e.g. certificates protecting software against unauthorised usage in a vending or licensing environment G06F21/10
• CPC Class Codes: H04N 21/8352 involving content or source identification data, e.g. Unique Material Identifier [UMID]
• CPC Class Codes: H04N 21/8355 involving usage data, e.g. number of copies or viewings allowed
• CPC Class Codes: H04N 21/8358 involving watermark protecting executable software by watermarking G06F21/16; image watermarking in general G06T1/0021; watermarks inserted in still images for transmission purposes H04N1/32144; inserting watermarks during video coding H04N19/467
• CPC Class Codes: H04N 21/8543 using a description language, e.g. Multimedia and Hypermedia information coding Expert Group [MHEG], eXtensible Markup Language [XML] information retrieval of semistructured data, the underlying structure being taken into account, e.g. mark-up language structure data G06F16/80

Abstract

A method for any IPMP terminals or digital consumption terminal like MPEG-4 system achieves interoperability for handling rights management in different content distribution chains.

By using a defined and standardised unified rights description language and schema architecture world-wide, by defining the right place or position to hold such standardised rights schema in a content stream, by pre-implementing rights parser and rights management in a terminal based on such rights schema and the specified position for holding the rights descriptions, interoperability can be achieved across content distribution chain, across different countries, across different manufactures for making the terminal, and across different content providers. Such interoperability will bring us low cost for making the terminal, and also low cost to create and distribute a content.

Flexibility and extensibility are also provided since it is based on flexible and extensible XML-like language.

Claims

1. A Method of Unified Rights Management for IPMP System, comprising the following steps of:

Using a flexible Rights Description Schema and Language to describe rights and usage rules commonly used in digital content distribution;

Creating a rights envelope with rights and usage rules based on said Rights Description Schema and Language when a digital content is created and encoded; and

Attaching said rights envelope to said content in a specified place to meet the different system specifications, to be distributed to users,

wherein an IPMP terminal has a rights parser based on said rights description schema and language, and

wherein said terminal has rights management function to extract said rights envelope from said content, interpret said rights and usage rules and transfer them to corresponding components in said terminal.

11. A Method of Unified Rights Management for IPMP System according to claim 1, wherein:

said rights envelope is encrypted by using any existing encryption algorithm; and

said encrypted rights envelope with said rights descriptions is attached to said content.

12. A Method of Unified Rights Management for IPMP System according to claim 1, wherein:

said rights envelope is digitally signed by using any digital signature methods; and

said signed rights envelope with said rights descriptions is attached to said content.

13. A Method of Unified Rights Management for IPMP System according to claim 1, wherein:

said envelope is added with more rights and usage rules automatically in said rights envelope at the point of time when user place request, make payment;

said envelope is converted into binary format; and

said rights envelope in binary format is attached to said content in the specified place;

wherein said envelope is delivered with said content to said IPMP terminal.

14. A Method of Unified Rights Management for IPMP System according to claim 1, wherein:

said Rights Envelope in binary form is converted into XML or XML based format;

a Rights Parser based on said Rights Description Language is built in said terminal; and

said rights descriptions is parsed by said Rights Parser in said terminal, and interpreting each of the rights and usage rules.

2. A Method of Unified Rights Management for IPMP System, Wherein:

a flexible Rights Description Schema and Language are used to describe rights and usage rules commonly used in digital content distribution;

a rights envelope with rights and usage rules based on said Rights Description Schema and Language is generated when a digital content is created and encoded; and

said rights envelope is attached to said content in a specified place to meet the different system specifications, to be distributed to users, and

wherein said method comprises steps of;

Having an IPMP terminal function with a Rights Parser based on said Rights Description Schema and Language;

Having a Rights Management function to extract said Rights Envelope from said content, interpret said rights and usage rules and transfer them to corresponding components in said terminal;

Receiving said content with said rights descriptions in said rights envelope in said terminal;

Extracting said rights envelope with said rights description from the received content;

Parsing said rights descriptions by said Rights Parser in said terminal, and interpreting each of the rights and usage rules;

Transferring the behaviour message of said rights descriptions to each component in said terminal, to activate said rights and usage rules described by said Rights Descriptions.

3. A Method of Unified Rights Management for IPMP System, wherein:

a flexible Rights Description Schema and Language are used to describe rights and usage rules commonly used in digital content distribution;

an Authoring Tool based on said Rights Description Schema and Language is used for content creation and distribution to place their rights easily, off-line or in real time;

a rights envelope with rights and usage rules is created by using said Authoring Tool when a digital content is created and encoded;

watermark information is embedded in said content using said authoring tool based on said Rights Description Schema and language;

said content is encoded into certain format with or without encryption; and

said rights envelope is attached to said content in a specified place to meet the different system specifications, to be distributed to users, and

wherein said method comprises steps of;

Having an IPMP terminal function with a Rights Parser based on said Rights Description Schema and Language;

Having a Rights Management function to extract said Rights Envelope from said content, interpret said rights and usage rules and transfer them to corresponding components in said terminal;

Receiving said content with said rights descriptions in said envelope in said terminal;

Extracting said rights envelope with the said rights description from the received content;

Parsing said rights descriptions by said Rights Parser in said terminal, and interpreting each of the rights and usage rules;

Transferring the behaviour message of said rights descriptions to each component in said terminal, to activate said rights and usage rules described by said Rights Descriptions.

4. A Method of Unified Rights Management for IPMP System, comprising steps of:

Specifying and defining a flexible Rights Description Schema and Language to describe rights and usage rules commonly used in digital content distribution, including to describe specific identifier for different digital objects in different system, such as OD_ID/ES_ID (ObjectDescriptor ID and Elementary Stream ID) for MPEG-4 system;

Identifying OD_ID and ES_ID with its corresponding rights and usage rules to apply;

Creating a rights envelope with rights and usage rules with the corresponding OD_ID and ES_ID based on said Rights Description Schema and Language when a digital content is created and encoded; and

Attaching said rights envelope to said content in the IOD (Initial Object Descriptor) as one of the initial elementary stream, to be distributed to users,

wherein;

an IPMP terminal has a Rights Parser based on said Rights Description Schema and Language;

said Rights Parser is integrated into said terminal to construct Rights Management with understanding the specified place (IOD) for a content stream to hold said Rights Descriptions;

said terminal has a Rights Management to extract said Rights Envelope from said content, interpret said rights and usage rules and transfer them to corresponding components in said terminal;

said content with said rights descriptions in said rights envelope is received in said terminal;

said content stream which contains Rights Descriptions in IOD is processed by said Rights Management in said Terminal;

said rights descriptions is parsed by said Rights Parser, and interpreting each of said rights and usage rules; and

the behaviour message of said rights descriptions is transferred to each component in said terminal, to activate said rights and usage rules described by said Rights Descriptions.

5. A Method of Unified Rights Management for IPMP System, wherein:

a flexible Rights Description Schema and Language are specified to describe rights and usage rules commonly used in digital content distribution, including to describe specific identifier for different digital objects, such as OD_ID/ES_ID (ObjectDescriptor ID and Elementary Stream ID) for MPEG-4 system;

OD_ID and ES_ID are identified with its corresponding rights and usage rules to apply;

a rights envelope is created with rights and usage rules with the corresponding OD_ID and ES_ID based on said Rights Description Schema and Language when a digital content is created and encoded; and

said rights envelope is carried in an IPMP_ES (IPMP Elementary Stream) which is attached to said OD_ID and ES_ID; and

wherein said method comprises steps of;

Having an IPMP terminal function with a Rights Parser based on said Rights Description Schema and Language;

Integrating said. Rights Parser into said terminal function to construct Rights Management with understanding the specified place (IPMP_ES) for a content stream to hold said Rights Descriptions;

Building said terminal with said Rights Management to extract said Rights Envelope from said content, interpret said rights and usage rules and transfer them to corresponding components in said terminal;

Receiving said content with said rights descriptions in said rights envelope in said terminal;

Processing said content stream which contains Rights Descriptions in said IPMP_ES by said Rights Management in said Terminal;

Parsing said rights descriptions by said Rights Parser, and interpreting each of said rights and usage rules;

Transferring the behaviour message of said rights descriptions to each component in said terminal, to activate said rights and usage rules described by said Rights Descriptions.

6. A Method of Unified Rights Management for IPMP System, comprising the following steps of:

Specifying and defining a flexible Rights Description Schema and Language to describe rights and usage rules commonly used in digital content distribution, including to describe specific identifier for different digital objects, such as Elementary_PID (Elementary Program ID) for MPEG-2 system;

Identifying each Elementary_PID with its corresponding rights and usage rules to apply;

Creating a rights envelope with rights and usage rules with the corresponding Elementary_PID based on said Rights Description Schema and Language when a digital content is created and encoded;

Putting said rights envelope in a Private Section in MPEG-2 system; and

Inserting said Private Section with said rights envelope into TS (Transport Stream), and wherein;

an IPMP terminal is implemented with a Rights Parser based on said Rights Description Schema and Language;

said Rights Parser is integrated into said terminal to construct Rights Management with understanding the specified place (said Private Section) for a content stream to hold said. Rights Descriptions;

said terminal is built with said Rights Management to extract said Rights Envelope from said content, interpret said rights and usage rules and transfer them to corresponding components indicated by elementary_PID in a PMT (Program Map table) in said terminal;

said content with said rights descriptions in said rights envelope is received in said terminal;

said Private Section in said transport stream is processed to retrieve said rights envelope;

said rights descriptions in said rights envelope is parsed by said Rights Parser, and interpreting each of said rights and usage rules; and

the behaviour message of said rights descriptions is transferred to each component indicated by elementary_PID in said terminal, to activate said rights and usage rules described by said Rights Descriptions.

7. A Method of Unified Rights Management for IPMP System, wherein:

a flexible Rights Description Schema and Language is specified to describe rights and usage rules commonly used in digital content distribution, including to describe specific identifier for different digital objects, such as Elementary_PID (Elementary Program ID) for MPEG-2 system;

each Elementary_PID is identified in a PMT table with its corresponding rights and usage rules to apply;

a rights envelope with rights and usage rules is created with the corresponding to their Elementary_PID based on said Rights Description Schema and Language when a digital content is created and encoded; and

said rights envelope is carried in said PES (Program Elementary Stream) stream as a private stream with specified stream_id defined by MPEG-2 system, and

wherein said method comprises steps of;

an IPMP terminal having a Rights Parser based on said Rights Description Schema and Language;

Building said terminal with said Rights Management to extract said Rights Envelope from said content, interpret said rights and usage rules and transfer them to corresponding components indicated by elementary_PID in a PMT (Program Map table) in said terminal;

Integrating said Rights Parser into said terminal to construct Rights Management with understanding the specified place (as a private stream in said PES stream) for a content stream to hold said Rights Descriptions;

Receiving said content with said rights descriptions in said rights envelope in said terminal;

Processing said private stream in said PES with specified stream-id to retrieve said rights envelope;

Parsing said rights descriptions in said rights envelope by said Rights Parser, and interpreting each of said rights and usage rules; and

Transferring the behaviour message of said rights descriptions to each component indicated by Elementary_PID in said terminal, to activate said rights and usage rules described by said Rights Descriptions.

8. A Method of Unified Rights Management for IPMP System, wherein:

a flexible Rights Description Schema and Language is specified to describe rights and usage rules commonly used in digital content distribution, including to describe specific identifier for different digital objects, such as Elementary_PID (Elementary Program ID) for MPEG-2 system;

each Elementary_PID is identified in a PMT table with its corresponding rights and usage rules to apply;

a rights envelope with rights and usage rules is created with the corresponding to their Elementary_PID based on said Rights Description Schema and Language when a digital content is created and encoded; and

said rights envelope is carried in the CA-Section (conditional_access_section) with specified table_id defined by MPEG-2 system, and

wherein said method comprises steps of;

Implementing an IPMP terminal having a Rights Parser based on said Rights Description Schema and Language;

Building said terminal with said Rights Management to extract said Rights Envelope from said content, interpret said rights and usage rules and transfer them to corresponding components indicated by elementary_PID in a PMT (Program Map table) in said terminal;

Integrating said Rights Parser into said terminal to construct Rights Management with understanding the specified place (in CA section) for a content stream to hold said Rights Descriptions;

Receiving said content with said rights descriptions in said rights envelope in said terminal;

Processing said CA_Section with specified table_id to retrieve said rights envelope;

Parsing said rights descriptions in said rights envelope by said Rights Parser, and interpreting each of said rights and usage rules; and

Transferring the behaviour message of said rights descriptions to each component indicated by Elementary_PID in said terminal, to activate said rights and usage rules described by said Rights Descriptions.

9. A Method of Unified Rights Management for IPMP System, comprising steps of:

Specifying a flexible Rights Description Schema and Language to describe rights and usage rules commonly used in digital content distribution, including to describe specific identifier for different digital objects, such as Access_Unit_ID for digital item in MPEG-7 system;

Identifying Access_Unit_ID with its corresponding rights and usage rules to apply;

Creating a rights envelope with rights and usage rules with the corresponding Access_Unit_ID based on said Rights Description Schema and Language when a digital content is created and encoded; and

Attaching said rights envelope to said content in the beginning of said content, to be distributed to users, and wherein;

an MPEG-7 IPMP terminal is implemented with a Rights Parser based on said Rights Description Schema and Language;

said MPEG-7 IPMP terminal is built with said Rights Management to extract said Rights Envelope from said content, interpret said rights and usage rules and transfer them to corresponding components indicated by Access_Unit_ID in said terminal;

said Rights Parser is integrated into said terminal to construct Rights Management with understanding the specified place for a content stream to hold said Rights Descriptions;

said terminal is built to be able to transfer different rights to corresponding components indicated by Access_Unit_ID in said terminal;

said content with said rights descriptions in said rights envelope is received in said terminal;

said content stream which contains Rights Descriptions in said specified place is processed by said Rights Management in said Terminal;

said rights descriptions is parsed by said Rights Parser, and interpreting each of said rights and usage rules; and

the behaviour message of said rights descriptions is transferred to each component indicated by Access_Unit_ID in said terminal, to activate said usage rules described by said Rights Descriptions.

10. A Method of Unified Rights Management for IPMP System, comprising steps of:

Specifying and defining a flexible Rights Description Schema and Language to describe rights and usage rules commonly used in digital content distribution, including to describe specific identifier for different digital objects, such as DID (Digital Item Declaretor) for generic digital item;

Identifying DID with its corresponding rights and usage rules to apply;

Creating a rights envelope with rights and usage rules with the corresponding DID based on said Rights Description Schema and Language when a digital content is created and encoded; and

Attaching said rights envelope to said content in the beginning of said content, to be distributed to users, and wherein;

an IPMP terminal is implemented with a Rights Parser based on said Rights Description Schema and Language;

said terminal is built with said Rights Management to extract said Rights Envelope from said content, interpret said rights and usage rules and transfer them to corresponding components indicated by DID in said terminal;

said Rights Parser is integrated into said terminal to construct Rights Management with understanding the specified place for a content stream to hold said Rights Descriptions;

said terminal is able to transfer different rights to corresponding components indicated by DID in said terminal;

said content with said rights descriptions in said rights envelope is received in said terminal;

said content stream which contains Rights Descriptions in said specified place is processed by said Rights Management in said Terminal;

said rights descriptions is parsed by said Rights Parser, and each of said rights and usage rules are interpreted; and

the behaviour message of said rights descriptions is transferred to each component indicated by DID in said terminal, to activate said usage rules described by said Rights Descriptions.

15. A Method of Unified Rights Management for IPMP System, wherein a data structure for describing a unified rights and usage rules of a digital content is used, said data structure having a syntax structure for defining said unified rights and usage rules including:

Content description for identifying a digital item of the digital content; and

at least one of play description for defining play rights related to the digital content identified by said content description; and

convey description for defining convey rights related to the digital content.

16. A Method of Unified Rights Management for IPMP System according to claim 15, wherein said unified rights and usage rules are described in XML based language.

17. A Method of Unified Rights Management for IPMP System, wherein an IPMP message is attached to a digital content for defining rights and usage rules related to the digital content, said IPMP message comprising:

a unified description of rights and usage rules related to the digital content which is described in accordance with a syntax for defining the rights and usage rules;

said unified description including content description for identifying a digital item of the digital content; and

at least one of play description for defining play rights related to the digital content and convey description for defining convey rights related to the digital content.

18. A Method of Unified Rights Management for IPMP System according to claim 17, wherein said unified description is described in XML or XML based language.

19. A recording medium being recorded with a digital content and an IPMP message, said IPMP message comprising a unified description of rights and usage rules related to the digital content which is described in accordance with a syntax for defining the right and usage rules;

and

said unified description including content description for identifying a digital item of the digital content; and

at least one of play description for defining play rights related to the digital content and convey description for defining convey rights related to the digital content.

20. A recording medium according to claim 19 wherein said unified description is described in XML or XML based language.

21. An IMPM system comprising:

a creation section for creating a unified rights and usage rules of a digital content being described in accordance with a syntax for defining the rights and usage rules and includes content description for identifying a digital item of the digital content; and

at least one of play description for defining play rights related to the digital content and convey description for defining convey rights related to the digital content;

an authoring section for placing said unified rights and usage rules for the content to convert them into one file and

a distribution section for transmitting a content stream after multiplexing said one file to the content stream according to a MPEG version installed in an IPMP terminal to which content stream is to be transmitted.

22. An IPMP system according to claim 21, wherein said unified rights and usage rules are described in XML or XML based language.

23. An IPMP system according to claim 21, wherein said one file is formatted in binary format.

24. An IPMP terminal comprising:

a receiving section for receiving a content stream with a unified rights and usage rules of the content, said unified rights and usage rules is described in XML or XML based language and multiplexed to the content stream in accordance with a MPEG version installed in said IPMP terminal;

a rights parser for interpreting each of elements contained in said unified rights and usage rules; and

a rights manager for managing said IPMP terminal in accordance with said unified right and usage rules interpreted by said rights parser.

25. An IPMP terminal according to claim 24, wherein said unified rights and usage rules are formatted in binary format.