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
  • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
  • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
  • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
  • H04N21/254—Management at additional data server, e.g. shopping server, rights management server
  • H04N21/2541—Rights Management
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
  • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
  • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
  • H04N21/25808—Management of client data
  • H04N21/25816—Management of client data involving client authentication
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
  • H04N21/81—Monomedia components thereof
  • H04N21/8166—Monomedia components thereof involving executable data, e.g. software
  • H04N21/8193—Monomedia components thereof involving executable data, e.g. software dedicated tools, e.g. video decoder software or IPMP tool
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
  • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
  • H04N21/835—Generation of protective data, e.g. certificates
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
  • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
  • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
  • H04N21/835—Generation of protective data, e.g. certificates
  • H04N21/8355—Generation of protective data, e.g. certificates involving usage data, e.g. number of copies or viewings allowed

Definitions

• the present invention relates to a content providing service method
• DRM digital rights management
• a conventional conditional access system (CAS)
• each of broadcasting station In a conventional broadcasting system, each of broadcasting station
• servers (broadcasters) uses its own specific protection mechanism for a
• STB set-top-box
• the present invention is directed to strengthening of security and/or
• the present invention is also directed to a content execution device for
• the present invention is directed to a method of efficiently
• the present invention is directed to a method of
• the present invention is directed to a method of
• One aspect of the present invention provides a content execution
• an independent authentication unit for storing a tool
• Another aspect of the present invention provides a content
• method including the steps of: in the user device, requesting a broadcasting
• Yet another aspect of the present invention provides a content
• Yet another aspect of the present invention provides a method for re ⁇
• target device the method including the steps of:
• station server to the target device; in the target device, connecting to the
• Yet another aspect of the present invention provides a method for re ⁇
• method including the steps of: checking whether or not re-distribution of the
• Yet another aspect of the present invention provides a method for re ⁇
• the method including the steps of: checking whether or not re ⁇
• Yet another aspect of the present invention provides a method for re ⁇
• the method including the steps of: receiving the content, use tool
• Yet another aspect of the present invention provides a method for
• the method including the steps of:
• the source device is permitted; requesting a tool server for transmission of a
• portable tool (hereinafter, referred to as “portable tool”)
• Yet another aspect of the present invention provides a method for
• conversional re-distributing content from a source device to an external target device including the steps of: checking whether or not
• invention employs the smart card for user authentication and/or content
• broadcasting non-subscribers also can execute broadcast content within a
• content protected by a copyright protection device can be executed in different multimedia devices such as a PDA, as well as a content
• FIG. 1 illustrates a structure of a content broadcasting system capable
• FIG. 2 is a block diagram illustrating a structure of a content execution
• FIG. 3 is a block diagram illustrating a structure of a tool pack, which
• FIG. 4 is a block diagram illustrating a content providing service
• FIG. 5 is a block diagram illustrating a content service providing
• FIG. 6 is a block diagram illustrating a content service providing
• FIG. 7 is a block diagram illustrating a content re-distribution method
• FIG. 8 is a block diagram illustrating a content re-distribution method
• FIG. 9 is a block diagram illustrating a content re-distribution method
• Content execution device 110 Authentication support module
• Tool agent 130 Content execution unit
• Tool storage unit 220 Authentication module
• Authority storage unit 300 Broadcasting station server
• the present invention can be used together with various types of digital content
• a producer server of a content provider includes a producer server of a content provider; a transmission server 300-1
• a clearing house 300-2 for authenticating the respective subscribers and/or content
• a tool server 400 for managing tools for
• the producer server which is a server for authoring information for
• the producer server registers content to be broadcasted with the
• clearing house 300-2 receives information (e.g. a content ID, a clearing
• the producer server determines a tool to be applied to the content
• tool information (a tool ID and a tool descriptor).
• the producer server can
• CP can be operated as CP or SP.
• the transmission server 300-1 serves to receive the protection stream
• domain controller content execution device 100 of the service subscriber.
• the protection stream can be converted to have
• the protection stream can be also converted by the tool registered with the tool
• the tool server 400 for managing tools applied to the broadcast
• the tool server 400 can include a server for registering the
• the tool server 400 is for downloading the tools stored in a smart card of
• the clearing house 300-2 a kind of a server system, takes charge of a
• the clearing house 300-2 may be
• integrally providing digital broadcasting may be an authentication system
• the producer server the clearing house 300-2, the transmission server
• the tool server 400 belong to a broadcasting server domain that is a
• broadcasting sever 300 are collectively called a broadcasting sever.
• domain system having a plurality of content execution devices and/or a
• 300-2 can have device and/or user information included on a home domain-
• an authentication execution module can perform a
• the content execution device of this embodiment can be any one of the domain-by-home domain basis.
• the content execution device of this embodiment can be any one of the domain-by-home domain basis.
• the home domain refers to one home domain controller
• One home domain controller defines one home domain, and each
• home domain includes a plurality of users and devices. It can be embodied
• controller combines one multimedia player by itself, and can also be embodied
• domain controller performs an important role in defining each home domain
• the content execution device of FIG. 2 is an exemplary embodiment
• an independent authentication module is embodied as the smart card
• an authentication support module 110 for providing a user authentication channel between the connected smart card 200 and the external
• the connected smart card 200 and a content execution unit 130 for executing
• the authentication smart card 200 connected to the content execution
• device 100 of this embodiment is comprised of a smart chip having an
• CPU embedded central processing unit
• EEPROM storage memory
• authentication smart card 200 includes a tool storage unit 210 for storing tools
• an authority storage unit 230 for storing
• authentication module 220 for performing mutual authentication for the
• the smart card 200 can also be embodied as an RF card employing an
• the authentication support module 110 can include a contact type
• the content execution unit 130 and the tool agent 120 can be any type of smart card.
• the content execution unit 130 and the tool agent 120 can be any type of smart card.
• arithmetic memory such as a RAM for loading the program.
• execution unit 130 has a similar structure and operation as a general
• execution unit 130 can call the tool agent 120.
• the tool agent 120 serves to
• the content execution device 100 of this embodiment can further control
• broadcasting station server 300 using a remote communication channel such as
• the tool storage unit 210 and the authority storage unit 230 can be
• the authentication module 220 can be embodied by a CPU core embedded in
• the smart card one chip inside the smart card and a corresponding program.
• serial communication interface capable of performing
• the tool storage unit 210 is for storing
• the authority storage unit 230 stores identification information of
• information e.g. key information, and certificate
• broadcasting station and having an issued smart card can execute broadcast
• authentication module 220 can hold a security key (a symmetric key method
• Mutual authentication refers to a
• smart card authentication method including authentication of the broadcasting
• Mutual authentication is a technology widely used in the
• tool agent 120 is more useful in an embodiment
• tool pack structure is a software and data package
• tool pack ; a tool agent that is original data before being loaded as the tool agent of FIG. 2; and tool group possessing at least one tool program activated
• type of content data providing service such as public broadcasting or Internet
• tool pack structure may further include a tool pack signature value for
• the tool pack information can include a tool server URL indicating a position
• the content data is
• the tool program is for a separate encoding/decoding process. While
• the activated tool agent can call
• the tool agent is called by the external device or the application program
• tool pack data storage efficiency can be improved, though
• broadcasters transmit their tool information and tool initialization information together with content.
• the broadcasters "A” and “B” transmit their protection
• the tool server of a tool registration authority (TRA).
• TRA tool registration authority
• a user registers, manages, and transmits a new tool to an end user (device).
• the user "C” desires to subscribe to a new paid channel service from
• the structure shown is embodied using the key information as a
• the key information is used for generating
• the smart card 200 a descrambling key in the smart card 200.
• the smart card 200 the
• structure may be more complex, and may use a certificate having a format
• the smart card having the embedded subscription certificate to any device (e.g.
• broadcaster "B" includes steps of, in the user device 100 connected with the
• the broadcasting station server 300 requested to transmit the broadcast
• the content by the user device 100 transmits the tool information including a tool version to the user device 100 together with the content.
• the tool information may further include a seed number for
• the user device 100 receiving the content data confirms whether or not there
• the content is executed (played) using the suitable tool.
• a user "C” receives the paid channel service from the
• a content execution device including smart card
• the tool information including a tool version
• the user device connects to a broadcasting station server positioned at a
• the tool or the tool link can be broadcast together
• the tool transmission request procedure The tool transmission request procedure
• the tool server 400 receiving the tool transmission request performs a
• the tool transmission procedure includes
• a user "C” subscribes to the broadcasting station "A" and a
• the source device of the user "C" which applies to this scenario, includes steps of checking whether or not the content intended to be re-distributed are
• the re-distribution permission checking step (S310) is performed such
• the bibliographic information may not be encrypted.
• target device 100-2 in the external broadcasting station server 300 may be any target device 100-2 in the external broadcasting station server 300.
• inventions preferably have inherent identification values such as a media access
• the content execution device can be any type of code (MAC).
• MAC code
• the inherent identification value for example, a MAC value or
• the authenticating step of the target device 100-2 can include the steps
• the requested tool server may
• the tool can be used.
• the step of requesting content execution permission (S330) is
• target device 100-2 requests the broadcasting station server 300 of the broadcasting station holding rights to the content for
• the broadcasting server 300 decides whether or not to
• the target device 100-2 plays
• the permission may
• the scenario includes steps of checking whether or not the content intended to
• the step of checking re-distribution permission (S410) can be
• the bibliographic information is preferably encrypted.
• the bibliographic information may not be encrypted.
• the step of receiving authentication of the target device (S420) is a first step of receiving authentication of the target device (S420)
• broadcasting system of the present invention preferably have inherent
• identification values such as a media access code (MAC).
• MAC media access code
• the content execution device can be identified using the inherent identification
• MAC value for example, a MAC value or an identification number allotted with
• the step of receiving authentication of the target device (S420) can be any one of the target device (S420).
• the authenticating step (S424) the
• identification value of the target device may be searched for within the DB to
• connection with the broadcasting server may be made to directly
• target device 100-2 is information on the tool used for playing the
• the target device 100-2 may
• the source device 100-1 The source device 100-1.
• the target device 100-2 plays the
• the target device 100-2 may play the re-distributed content
• broadcasting station registers a tool for playing the portable-device with the
• the portable device generally has low performance in playing the
• the content requires conversion to a suitable
• a user "C” stores the broadcast
• the device of the user "C”, applied to this scenario, includes steps of: checking
• broadcasting station server 300 for permission to perform altered
• the bibliographic information is preferably
• any one of the service domains e.g. a home domain.
• a list of devices including portable devices
• the smart card and serving primarily to receive content from the broadcasting
• the step of downloading the portable tool (S520) is performed in the
• target device 100-3 is mostly used in an offline state.
• the source device 100-1 In the content transmission step (S540), the source device 100-1
• a wired/wireless communication means (generally,
• the target device 100-3 may receive only the
• the target device 100-3 executes the
• the initially provided content in the source is the initially provided content in the source
• device 100-1 may be converted into portable content in the broadcasting
• the content is converted in the source device 100-1, less communication is required. In this case, the content

Landscapes

• Engineering & Computer Science (AREA)
• Multimedia (AREA)
• Signal Processing (AREA)
• Computer Security & Cryptography (AREA)
• Databases & Information Systems (AREA)
• General Engineering & Computer Science (AREA)
• Software Systems (AREA)
• Computer Graphics (AREA)
• Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (2)

Family

ID=36740769

Family Applications (1)

Country Status (2)

Family Cites Families (4)

• 2006
  • 2006-01-26 EP EP06715761A patent/EP1842364A4/de not_active Withdrawn
  • 2006-01-26 WO PCT/KR2006/000308 patent/WO2006080814A1/en not_active Ceased

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