CN1726714A - Paying digital television signal access controlling method - Google Patents

Paying digital television signal access controlling method Download PDF

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Publication number
CN1726714A
CN1726714A CNA2003801062217A CN200380106221A CN1726714A CN 1726714 A CN1726714 A CN 1726714A CN A2003801062217 A CNA2003801062217 A CN A2003801062217A CN 200380106221 A CN200380106221 A CN 200380106221A CN 1726714 A CN1726714 A CN 1726714A
Authority
CN
China
Prior art keywords
user
information
content
receiving platform
ecm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2003801062217A
Other languages
Chinese (zh)
Inventor
J·-L·多瓦斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KCA Licensing SA
Original Assignee
Canal Plus Technologies SA
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 Canal Plus Technologies SA filed Critical Canal Plus Technologies SA
Publication of CN1726714A publication Critical patent/CN1726714A/en
Pending legal-status Critical Current

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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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
    • 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
    • H04N21/2543—Billing, e.g. for subscription services
    • 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
    • H04N21/25866—Management of end-user data
    • H04N21/25891—Management of end-user data being end-user preferences
    • 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
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • 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
    • H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
    • 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
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47211—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting pay-per-view content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
    • H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • 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
    • 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
    • H04N7/165—Centralised control of user terminal ; Registering at central
    • 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

Landscapes

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

Abstract

The invention concerns a method for controlling access, in digital pay television, to data contained in the signal received by a subscriber receiving station (21) comprising steps which consist in transmitting first right allocation control messages (ECM) enabling proposal to subscribers of an on-demand operation mode and second right allocation management messages (EMM) to a user device (26), generating in the user device an access authorization signal (CW), wherein first right allocation control messages are transmitted having a parameterable profile content enabling at least one service or one programme to be authorized during a time slot based on the profile of a specific subscriber, so as to ensure an interactivity between the content of said first messages and the content of the user's device in terms of subscription for the subscriber.

Description

The connection control method of digital pay television
Technical field
The present invention relates to the connection control method in a kind of digital pay television field.
Background technology
The employed technology of pay TV is based on two independent mechanisms: be the scramble/encryption of vision signal and/or radio signal on the one hand, be the function that commercial rights are distributed on the other hand, these commercial rights are transferred to descrambling box (having the control inlet) as safety information.Encryption can more easily be applied on the information flow of digital bit position.All bits for example can be encrypted when utilizing the data block coding.Scramble is used to simulation and sends.When utilizing this scramble, signal format has changed, and synchronizing signal is removed and transmits with encrypted form dividually.Radio signal is convertible into digital signal and encrypts then.The radio digital signal of encrypting can be inserted in the vision signal.
The data of being transmitted have meanwhile been used a control word (CW) or a key by scramble or encryption.Control word or key after the short period with regard to conversion.Used commercial rights to distribute control information ECM (" Entitlement ControlMessages ") and commercial rights allocation manager information EMM (" Entitlement ManagementMessages ") in order to send new key to user's receiving platform.
These two kinds of information ECM and EMM can send to smart card by user's receiving platform.
Message information ECM contains some information that can make user's receiving platform descrambling vision signal and/or radio signal.The data of descrambling turn back to this receiving platform, and the form of performance is, if the TV programme of having only the user to be authorized to insert to broadcast just can descrambling.When the user was represented by smart card, insertion authority then utilized commercial rights distribute data (" entitlement the data ") indication that is stored in this card.
Message information EMM comprises some information like this, and they can upgrade user's commercial rights distribute data, for example can change the data that are stored in the smart card simultaneously.
Message information ECM and EMM have digital signing territory field, and it has guaranteed the integrality (for example a kind of Hash codes) of this message information.This has been avoided the user may change its information content.
Information ECM sends with the scrambling signal of transmission.It comprises three fields.First field comprises access parameter.These parameters have stipulated to allow to insert the condition of TV programme.This field for example might be carried out parent's property judgement (being by the desired extracode PIN of decoder under the sort of situation) and can be carried out geography and suppress (film may not be all freely to use in all European countries).Second field comprises the control word of an encrypted form.Last field comprises the control of data globality.
Information EMM generally comprises 4 fields.Each information EMM beginning has the address field that can select one of them receiver.Two addressing systems are arranged, one of them be for individual platform and another is for one group of this class platform.Second field comprises a kind of commercial rights distribution of subscriber.The 3rd field comprises the service key of encrypted form.Last field comprises the control of data globality.Information EMM also can be used for to the decoder transmitting control commands.The transmission of information EMM normally user proposes the result explicitly call for to the ISP.These information generally all are for personal.Information EMM is not the TV service synchronized transmission that is fit to them.They all transmit so that allow the user who has authorized to insert preserved program in advance, and any network all can be used to transmit these information EMM to receiver: modulator-demodulator, Email or radio broadcasting.
In order to improve the probability that the user receives EMM information,, repeatedly transmit this information in order for example to retransmit the reservation signature.Therefore, these information EMM according to the transmission loop cycle formula of appointment weave into.The time limit of one-period is exactly a major parameter of determining the maximum time that will wait for like this so that obtain the distribution of user's commercial rights, this user in long one section duration internal cutting off receiving platform.
The article of existing known technology, exercise question is " Functional model of aconditional access system " (8301 EBU Review Technical, 1995, n ° 266) a kind of mode of operation of the connecting system of having ready conditions of digital television application described.This connecting system with good conditionsi comprises the combination of scramble and encryption so that avoid various unwarranted receptions; scramble can make image, sound and data become unclear, and encryption can protect the key that transmits with scrambling signal so that allow the descrambler normal operation.After the descrambling, the various deficiencies of relevant image or sound are all imperceptible, that is to say that this connecting system with good conditionsi should be transparent.
Generation, transmission and the utilization of the commercial rights allocation manager information (EMMS) of being undertaken on unique accompanying drawing, have been described by the subscription authorization system.
Each all passes through this subscription authorization system 10 (SAS or " Subsctiber Autorisation System) and control word (CW) generator 11 encrypted circuit 13 and 14 and is connected to operation issue platform 12.
This operation issue platform 12 receives image I, sound S and data D signal, and they are in succession continuously by multiplexer 15, interference unit 16, modulator 17 and transmitter 18.
User's receiving platform 21 comprises a receiver 22, demodulator 23, descrambler 24, information separator 25, this output image signal I ', voice signal S ' and a data-signal D ' continuously under receiving by the signal of described transmitter 18 emissions and the RST for example transmitted by satellite 20.
A kind of access subsystem with good conditionsi for example is a kind of smart card 26, and it comprises two decrypt circuits 27 and 28, also has a security processor 29 (key), and this subsystem is connected with user's receiving platform 21.
Descrambling needs a descrambler, a decrypt circuit and a kind of daily service key.Deciphering must utilize the commercial rights allocation manager information (EMM) of common program, and it generally all uses some to be stored in key in the smart card 26.
In digital TV field, consumption pattern on request can propose according to reservation.This consumption pattern allows developing service, and kinema for example is according to the appointment mode of predetermined kinema or the operation of " impulsivepay per view/pay per time " class (press viewing time payment/by a payment of definiting time-lag with need for affection).
But this consumption pattern can not directly propose the property promoted suggestion in user family, even can not permit serving targetedly, for example watch for the moment the program of appointment in the window at certain according to fixed user distribution situation, efficiency confirmed so that there is no need transmission, subsequently under the situation of the commercial rights allocation manager information of eliminate confirming again (EMM), just user group's a certain track section as target.
The objective of the invention is to solve this class problem, designed a kind of new consumption mode simultaneously, the service that it can permit having at a distance according to fixed user distribution situation target does not cause stronger constraint to the operation issue platform again.
Summary of the invention
The present invention proposes a kind of method of carrying out the access of control figure pay TV according to the information that is included in user's receiving platform received signal, and it may further comprise the steps:
Send two class message informations through this user's receiving platform to user's set, commercial rights distributivity control some information that message information contained of the first kind can make this user's receiving platform decoded signal and advise a kind of mode of operation of carrying out on request to the user, and the message information of the commercial rights allocation manager of second class includes the information that can allow the user to upgrade the commercial rights distribute data.
Producing a kind of mandate in user's set inserts signal and can allow to utilize user's receiving platform described signal of decoding, if being authorized to access package, the user is contained in information in this receiving platform, it is characterized in that, people can launch the first kind commercial rights with characterisitic parameter distribution of content and distribute control information, this can change along with fixed user distribution, certain the time permit a service or a program in the window at least, make between the content that is implemented in type I information content and user's set according to certain interactive of user's reservation period limited production life.
The inventive method advantageously can:
The suggestion of the property promoted is proposed along with the minimizing of commercial rights allocation manager information (EMM) quantity of being transmitted,
Be easier to realize " profiling " (considering user's distribution),
Resist the swindle system.
In fact this method can resist the swindle system of some type, it mainly is to provide in the maximum reservation of determining of moment inquiry for the user of appointment, then again after having received the commercial rights allocation manager information (EMM) that efficiency confirmed, inquire basic reservation, meanwhile eliminated some commercial rights allocation manager information (EMM) of back, particularly it contains revocation information EMM
Description of drawings
Unique accompanying drawing has been described a kind of digital television signal of known technology and has been launched a receiving system.
Embodiment
The method of the present invention of working according to scheming to go up indicated system, the distribution control information ECM of commercial rights has the content that characterisitic parameter distributes, and realization is necessarily interactive between the content of this content that can be implemented in this information ECM by the time limit of user's reservation and smart card.
Therefore provide 01 and second 02 user is provided for enjoying first, can be such as in the time, under the ECM information Control, enjoying the 3rd and provide 03 at a film.If people think no longer to provide this distribution suggestion at that time, just can cancel the condition of ECM information.
This feature can make some service visualize along with user's changes in distribution, there is no need to send in advance a large amount of commercial rights allocation manager information EMM again.
It can also make those users with certain distribution situation enjoy the price of reduction.For example to pay program P1 and P2 and the commercial user that 01 commercial rights expense is provided and to pay that to obtain a program be 2 coin chips and some other user then will pay 4 coin chips.
This feature also can be resisted the swindle system.According to the inventive method, all give temporarily providing of an every day for every service or each program.When customer requirements inserts a program, for example during kinema, not to make him that regular providing is provided, but make him that temporary providing is provided.
If therefore in one period short time, for example on the same day, the reservation of this user's query maximum provides to change mind then and to require to enjoy benchmark in order not paying and preengages, normally a commercial rights allocation manager information EMM who cancels who sends to him.If use " blocker " of these information (EMM) at that time, so that eliminate these information, but under the sort of situation just for example the gratis in two months, continue to enter the program that the service of being inquired or access are inquired, on the contrary, adopting the inventive method, is temporary transient because provide, next day, just no longer access service or program of user for example is even he has used " blocker EMM ".Inquired and confirmed the user that its maximum provides for those, still needed to send one with this service or the regular information EMM that cancellation is provided of program.
Embodiments of the invention
Utilize content with good conditionsi
This class content with good conditionsi of information EMM can be on geographical addressing and/or the represented information bit mapping field of reservation addressing, adopts function ET, OU, SI, SINON and NON and works.They also can be implemented in the work of having ready conditions between the program, for example order such program, if another this class program was ordered.
This mode of operation with good conditionsi shows as an order form, for example: SI (providing 01) ET (providing 02) ET (non-provide 03)
" Impulsive pay per view " pattern by 50 coin chips provides order program P1.
SINON
" Impulsive pay per view " pattern by 70 coin chips provides order program P1.
FINSI
Utilize information bit conversion with good conditionsi
People can use some mechanisms with good conditionsi so that provide the additional order or the possibility of visualize to the user, for example: SI (((providing 01) ET (providing 03) OU (providing 04))) OU (providing 02)
The possible visualize of a program
FINSI
The swindle system is resisted in utilization
People can use mechanism with good conditionsi so that resist the swindle of the above-mentioned type, for example: put to the same day in order
SI ((temporary transient provides 05) OU (regular provides 01))
The possible visualize of a program
FINSI
Put to+1 the same day in order
SI ((temporary transient provides 06) OU (regular provides 01))
The possible visualize of this program
FINSI

Claims (2)

1, a kind of according to being included in the Digital Television connection control method of charging by the information in user's receiving platform (21) received signal, may further comprise the steps:
Send two class message informations through this user's receiving platform to user's set (26), the first kind is that its contained information of control message information (ECM) that commercial rights are distributed can make this user's receiving platform to signal decoding and can be used for advising a mode of operation on request to the user, second class is the administrative message information (EMM) that commercial rights are distributed, its renewable user's of contained information commercial rights distribute data
In user's set (26), produce the signal (CW) that a kind of authorization grant inserts, can utilize user's receiving platform (21) to described signal decoding, if the user has been allowed access package and has been contained in information in this, it is characterized in that, people send the commercial rights with characterisitic parameter distribution of content according to fixed user distribution situation and distribute the first kind message information (ECM) of control, this can permit a kind of service or a program in the window at least when certain, make between the content of the content of type I information (ECM) and user's set, realize certain interactive according to user's the reservation time limit.
2, method according to claim 1, wherein user's set is a smart card.
CNA2003801062217A 2002-12-17 2003-12-16 Paying digital television signal access controlling method Pending CN1726714A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0215978A FR2848764A1 (en) 2002-12-17 2002-12-17 Paying digital television signal access controlling procedure, involves emitting messages having contents for monitoring allocation of rights, and enabling additional offer of service/program to subscriber based on users profile
FR0215978 2002-12-17

Publications (1)

Publication Number Publication Date
CN1726714A true CN1726714A (en) 2006-01-25

Family

ID=32338873

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2003801062217A Pending CN1726714A (en) 2002-12-17 2003-12-16 Paying digital television signal access controlling method

Country Status (9)

Country Link
EP (1) EP1574059A2 (en)
JP (1) JP2006510323A (en)
KR (1) KR20050090399A (en)
CN (1) CN1726714A (en)
AU (1) AU2003302182A1 (en)
BR (1) BR0317347A (en)
FR (1) FR2848764A1 (en)
MX (1) MXPA05006345A (en)
WO (1) WO2004057871A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007095809A1 (en) * 2006-02-24 2007-08-30 Huawei Technologies Co., Ltd. Method, system and service server for providing content usage information
CN101026735B (en) * 2006-02-25 2010-05-12 华为技术有限公司 Method for providing chargin strategy for protection mechanism
CN102067620B (en) * 2008-06-20 2013-09-04 纳格拉影像股份有限公司 Method for controlling the use of a conditional access content and multimedia unit for implementing said method

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101061714B (en) * 2004-11-17 2014-10-15 摩托罗拉移动有限责任公司 System and method for providing authorized access to digital content
EP1662789A1 (en) * 2004-11-29 2006-05-31 Nagracard S.A. Conditional access method to conditional access data
US9325944B2 (en) 2005-08-11 2016-04-26 The Directv Group, Inc. Secure delivery of program content via a removable storage medium
KR100753288B1 (en) * 2006-05-11 2007-08-29 주식회사 팬택앤큐리텔 Method of servicing ippv in the satellite dmb
US8996421B2 (en) 2006-05-15 2015-03-31 The Directv Group, Inc. Methods and apparatus to conditionally authorize content delivery at broadcast headends in pay delivery systems
US7992175B2 (en) 2006-05-15 2011-08-02 The Directv Group, Inc. Methods and apparatus to provide content on demand in content broadcast systems
US8775319B2 (en) 2006-05-15 2014-07-08 The Directv Group, Inc. Secure content transfer systems and methods to operate the same
US9178693B2 (en) 2006-08-04 2015-11-03 The Directv Group, Inc. Distributed media-protection systems and methods to operate the same
US9225761B2 (en) 2006-08-04 2015-12-29 The Directv Group, Inc. Distributed media-aggregation systems and methods to operate the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6057872A (en) * 1997-07-09 2000-05-02 General Instrument Corporation Digital coupons for pay televisions
EP1161835A1 (en) * 1999-12-22 2001-12-12 Koninklijke Philips Electronics N.V. Conditional access system for controlling the access to a data content
ATE354913T1 (en) * 2001-01-02 2007-03-15 Nds Ltd METHOD AND SYSTEM FOR CONTROLLING BROADCAST CONTENT ACCESS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007095809A1 (en) * 2006-02-24 2007-08-30 Huawei Technologies Co., Ltd. Method, system and service server for providing content usage information
CN101026735B (en) * 2006-02-25 2010-05-12 华为技术有限公司 Method for providing chargin strategy for protection mechanism
CN102067620B (en) * 2008-06-20 2013-09-04 纳格拉影像股份有限公司 Method for controlling the use of a conditional access content and multimedia unit for implementing said method

Also Published As

Publication number Publication date
BR0317347A (en) 2005-11-08
AU2003302182A8 (en) 2004-07-14
FR2848764A1 (en) 2004-06-18
WO2004057871A3 (en) 2004-08-12
MXPA05006345A (en) 2005-08-26
JP2006510323A (en) 2006-03-23
EP1574059A2 (en) 2005-09-14
AU2003302182A1 (en) 2004-07-14
WO2004057871A2 (en) 2004-07-08
KR20050090399A (en) 2005-09-13

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