CN101542471A - Method for protecting content and method for processing information - Google Patents
Method for protecting content and method for processing information Download PDFInfo
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- CN101542471A CN101542471A CNA2008800002137A CN200880000213A CN101542471A CN 101542471 A CN101542471 A CN 101542471A CN A2008800002137 A CNA2008800002137 A CN A2008800002137A CN 200880000213 A CN200880000213 A CN 200880000213A CN 101542471 A CN101542471 A CN 101542471A
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Abstract
Disclosed are a method of protecting content and a method of processing information. The method of protecting content can include service related information including revocation application information of content from the outside by employing a content management and protection system, and apply or not apply a content revocation process on the content according to the revocation application information. Accordingly, whether to apply a content revocation process can be controlled according to revocation application information.
Description
Technical field
The present invention relates to a kind of method of content and a kind of method of process information protected; more particularly; relate to the such content protecting and the information processing technology, it can control and whether carry out content and cancel process by adopting the specific information signal that receives from the external world the included application message (revocationapplication information) of cancelling.
Background technology
In recent years, along with the commercialization of wire/wireless the Internet, realized the intelligence of household electrical appliance etc. and networking etc., quickened digital convergence, this digital convergence is created the service of newtype by the fusion of different digital service.Digital convergence is created new profit and the chance of activating business for the service provider provides, and also provides the user oriented service that can satisfy complexity and diversified demand for the user.
According to such digital convergence, existing broadcast service is by becoming its area extension into various types of digital broadcast service to content service via wire/radio network.Digital broadcasting can provide the broadcasted content of high-quality by cable network or wireless network, and by with the service that expansion concept is provided of uniting of digital household environment etc.The representative illustration of the service of expansion concept can comprise content sharing service or the like, wherein, uses the personal record device to wait stores broadcast contents and then it is moved to other equipment and uses for digital household environment.
But,, need a kind ofly can prevent the illegal use of content or the security system of derivation for this content sharing service etc.Especially; be necessary to protect all the time the content in the regional area such as digital household environment; because when sending broadcasted content when in content sharing, broadcasted content is (for example CAS (conditional access system)) not in the protection domain of the security system that is used for content protecting.
Therefore, proposed the content protecting management system recently, it can protect related content all the time when broadcasted content is stored in digital household environment, the personal record device etc.The technology that can support the content protecting management system has been done positive research, such as with the management of contents processing, license creation and management, territory, cancel use and process etc. technology.
Technical matters
Technical purpose of the present invention provides a kind of technology, and it can be based on by specific information signal cancelling application message and control whether application content is cancelled process from external world input.
Technical scheme
In order to realize above technical purpose, one aspect of the present invention provides a kind of method of protecting content.This content protecting method can comprise step: receive from external system and cancel application message, cancel application message based on this and judge and cancel procedure schema; and cancel procedure schema based on this and shine upon the information of cancelling, so that with the equipment of distribution of contents to the territory corresponding with built-in system.
In order to realize above technical purpose, the present invention provides a kind of method of protecting content on the other hand.This content protecting method can comprise step: content-based attribute is created and is cancelled application message, and sends this and cancel application message, so that cancel the distribution that application message is come control content based on this.Here, can judge and cancel procedure schema based on cancelling application message, and can shine upon the information of cancelling based on cancelling procedure schema.
In order to realize above technical purpose, another aspect of the present invention provides a kind of method of protecting content.This content protecting method can comprise step: receive the content of distributing based on cancelling information, and use this content according to the authority information that sets in advance.Here, can shine upon the information of cancelling based on cancelling procedure schema, and this cancel procedure schema can be based on cancelling application message.
In order to realize above technical purpose, another aspect of the present invention provides a kind of method of process information.This information processing method can comprise step: in adopting Content Management and protection system method of processing information; comprise the service related information of cancelling application message of content from external world's reception, and cancel application message according to this and come this content application or non-application content are cancelled process.Here, can receive described service related information with the form of FTA (free rating) broadcast singal.
Cancel application message and can be set in first value and second value any one, this first value indication should application content not cancelled process, and this second value is indicated application content cancel process.
When cancelling application message and be set to first value, use or step that application content is not cancelled process can comprise step: be included in the customizing messages of the content relevant in permitting and be set to not be employed the particular value that content is cancelled process with content.At this moment, described customizing messages can be relevant with the described content list index table of cancelling.
Simultaneously; this information processing method may further include step: receive exterior content, the reception bulk information relevant with exterior content, convert this exterior content to can manage and protect content in Content Management and protection system, and create the content of being correlated with described content by the employing bulk information relevant with exterior content and permit.
Here, described bulk information can comprise: comprise the Content Management and the protection information of service regeulations information, be used for protection and organize content in Content Management and protection system; Comprise the service related information of Versatile content protection information, being used for content provides service; And cancel relevant information, be used for forbidding using this content at unauthorized device.
Described Content Management and protection information can comprise following any at least: what be used for control content and duplicate and move duplicates and mobile control information, the Consumption Control information that is used for control content consumption, the propagation control information that is used for the content propagation between the equipment in the control domain, the output control information that is used for control content output and auxiliary content control information.
The content permission can comprise following any at least: content permission flag information comprises the information that is used to identify the content permission; Content license creation person information comprises and is used to identify the founder's of content creating permission information; Accordance/robustness system (regime) information is indicated the accordance/robustness system relevant with content; Authorized domain identification information comprises the identification information that wherein can use the Authorized Domain of described content; The descrambling information of content; And Content Management and protection information.
The information of cancelling can comprise cancels the list index table.Here, this deindex can be the numerical information that just increases particular value when new the cancelling of issue tabulated.
Advantageous effects
As mentioned above, according to the present invention, can be according to by specific information signal (being the FTA broadcast singal) cancelling application message and control whether application content is cancelled process from external world input.Especially, can content not cancelled process based on cancelling application message and be applied to specific content.Therefore, when sending content, can utilize easily such as contents such as emergency message and public notices, these contents should be not limited to equipment or territory and be seen by anyone.
Description of drawings
Fig. 1 is the block diagram that schematically shows the notion of CMP (Content Management and protection) system;
Fig. 2 shows the conceptual view of the functional structure of the CMP module shown in Fig. 1;
Fig. 3 shows the exemplary views of the form of CMP content permission; And
Fig. 4 shows the process flow diagram according to the method for the process information of the preferred embodiments of the present invention.
The explanation of the Reference numeral of essential element in the accompanying drawing:
CD:CMP equipment
The CM:CMP module
10: acquisition module
20: memory module
30: processing module
40: consumable module
50: derive module
Embodiment
Those skilled in the art hereinafter, describes the present invention with reference to the accompanying drawings in conjunction with the preferred embodiments in detail, so that can realize the present invention.In a preferred embodiment of the invention, use the particular technology term for the clear of content.What however, it should be understood that is that the present invention is not limited to specific selected term, and each particular term has comprised similar effect so that reach all technology synonyms of similar purpose.
Fig. 1 is the block diagram that schematically shows the notion of CMP system.
As shown in fig. 1, CMP system 100 formative regions 5.Territory 5 is the set of authorizing CMP equipment (CD), and can refer to the guaranteed zone of reliability for its content legality use.Can in the scope of authority of authorizing, between the CMP equipment (CD) of territory 5 registrations, move and use content.Can in the local environment such as digital household environment, realize territory 5.
CMP equipment (CD) can assignment has the equipment of CMP module (CM).CMP module (CM) is used to protect and manage the content that is input to CMP system 100 from the external world.For example, CMP module (CM) can convert the content that is input to CMP system 100 to the content of particular type, CMP content for example, and can generate the CMP content permission of particular type, wherein, can use the CMP content by the CMP content permission of this particular type.CMP module (CM) is also by permitting the use of controlling the CMP content based on the CMP content, thus the CMP content of protection and administrative institute's generation.
CMP equipment (CD) can come received content, the CMP information (hereinafter be abbreviated as CMPI) relevant with content, the various content correlated information sheets of being correlated with content or the like by wireless network, cable network or storage medium.Can information be sent to CMP equipment (CD) by form, root and the channel of each qualification.
CMPI can refer to be used for protecting and managing in CMP system 100 the service regeulations information of CMP content.
CMPI can comprise: duplicate and mobile control information, be used to control duplicating and moving of CMP content; Consumption Control information is used to control the consumption of CMP content; Propagate control information, be used for the propagation of the CMP content between the CMP equipment in the control domain; The output control information is used to control the output of CMP content; Auxiliary CMP content control information or the like.
Content correlated information can comprise content service related information, cancel relevant information, accordance/robustness system (hereinafter being called the C/R system) relevant information or the like.
Service related information can refer to be used for the Versatile content protection information that content provides service.Can this content service relevant information be sent to CMP equipment from the service provider with the form of FTA (free rating) broadcast singal.Service related information can comprise the information cancelling application message, indicate whether to carry out scrambling, remote access control information or the like.
Cancel relevant information and comprise the information that is used for preventing to use content at duplicity equipment, unauthorized device etc.For example, cancelling relevant information can comprise and cancel tabulation (being abbreviated as RL hereinafter) or RL relevant information.Can be from service provider's side, be used for server that CMP cancels management etc. and will cancel relevant information and send to CMP equipment (CD).
C/R system relevant information can refer to such information, and this information is relevant with the application of policies rule about the content of service provider's side.This C/R system relevant information can comprise the information of the C/R system of the content protective system that is applied to content, for example CA (condition access) or DRM (digital copyright management).Can C/R system relevant information be sent to equipment from service provider's side, content protective system service etc.
Fig. 2 shows the conceptual view of the functional structure of the module of CMP shown in Fig. 1.
As shown in Figure 2, CMP module (CM) can comprise acquisition module 10, consumable module 40, derive module 50, memory module 20, and processing module 30.Acquisition module 10, consumable module 40, and derive module 50 and can have the notion that there is the point of visit to external world in the place, place, and memory module 20 and processing module 30 can have the notion of internal entity.
Content and content correlated information that acquisition module 10 is used for being input to CMP system 100 from the external world convert the type that can use in CMP system 100.
For example, acquisition module 10 can receive the content that sends from the external world, with the form that CMP system 100, limits with the content scrambling that receives, and convert the content of scrambling to CMP content (CC).CMP content (CC) can refer to the content type that can be protected and manage for 100 times in the CMP system.Acquisition module 10 also uses the CMPI information and the content correlated information that receive from the outside to generate the CMP content permission (CCL) that is used to use CMP content (CC).
The content that sends to CMP equipment (CD) from the external world can be clean content (cleancontent); receive this clean content by credible transmission method with the reliability of being guaranteed; it perhaps can be scrambled content; this scrambled content is subjected to having content protective system (for example, CA or the DRM system) protection of the reliability of being guaranteed.In latter's situation, related content can receive by CMP equipment (CD), by be included in CAS module in the CMP equipment (CD) or DRM module (being present in CMP module outside) by scrambling, be converted into the form of clean content, and be sent to acquisition module 10 then.Here, can handle the key that obtains to be used for scrambled content by the content correlated information relevant with content carried out ECM (authorization control message)/EMM (entitlement management message).
Simultaneously, the CMP content permission (CCL) that is generated by acquisition module 10 is defined, so that it is associated with corresponding C MP content (CC).At this moment, can CMP content permission (CCL) be included in the CMP content (CC) with embedding form or the form of separating with CMP content (CC).
Fig. 3 shows the exemplary views of the form of CMP content permission (CCL).
As shown in Figure 3, CMP content permission (CCL) can comprise CMP content permission flag information field 62, CMP content license creation person information field 63, C/R institutional information field 64, cancel information field 65, authorized domain identification information field 66, descrambling information field 67, CMPI field 68, CMP content license management data field 69 or the like.
CMP content permission flag information field 62 is the fields that wherein are inserted into CMP content permission flag information.CMP content permission flag information can refer to be used to identify the unique identification information of corresponding CMP content permission.
CMP content license creation person information field 63 is wherein to be inserted into to be used for the field of CMP content license creation person information that sign has been created the founder of CMP content permission (CCL).For example, CMP content license creation person information can refer to create the identification information that corresponding CMP content is permitted the CMP module (CM) of (CCL).
C/R institutional information field 64 is the fields that wherein are inserted into the C/R institutional information relevant with corresponding CMP content (CC).Here, the C/R institutional information can refer to be used for the information of the sign C/R system relevant with CMP content (CC).
The C/R system can refer to the policing rule about content of service supplier's side or content protective system (for example CAS or DRM).A plurality of (for example eight) C/R system can be associated with a CMP content (CC).In other words, can be applied to a CMP content (CC) in the fixed a plurality of Different Strategies rules of service provider's lateral confinement.The C/R institutional information can be configured to comprise and can be set to for example a plurality of bits of ' 1 ' or ' 0 ', and the sign C/R system (for example RL) relevant with the CMP content.
Cancelling information field 65 is the fields that wherein are inserted into the information of cancelling of corresponding CMP content (CC).The information of cancelling comprises the information that can find RL thereon, and this RL comprises the territory of the use that limits corresponding CMP content (CC) or the information of CMP equipment (or CMP module).
For example, cancel information and can refer to the RL concordance list.Here, the RL index cancels information field and can comprise RL concordance list (being the tabulation of RL index).Here, the RL index is to be included in being used among the RL to identify the information of RL.For example, the RL index is whenever the new RL of issue just increases by 1 numeral.In other words, the RL index can refer to be used to identify the information of the RL of up-to-date issue.The RL concordance list is the tabulation of RL index and helps to find up-to-date RL when using the CMP content.Simultaneously, if do not need to use RL when using content, then the RL in the RL concordance list for example can be set to ' 0 '.
Authorized domain identification information field 66 is the fields that wherein are inserted into domain identifier information.Domain identifier information can refer to wherein can to use the identification information in the territory 5 of CMP content.If can use CMP content (CC) under the situation of the scope restriction that does not have territory 5, then domain identifier information for example can be set to ' 0 '.
CMP content license management data message field 69 is the fields that wherein are inserted into CMP content license management data message.CMP content license management data message field 69 can comprise length information of CMP content permission (CCL), the information relevant with the publisher who finally issues CMP content permission (CCL) (for example finally issuing the certificate information of the CMP module that the CMP content permits etc.) or the like.
When content being carried out consumable module 40, derived module 50, memory module 20, and during the function of processing module 30, the information that is included in the CMP content permission (CCL) can be with the License Info of the rights of using that act on control content.
Deriving module 50 can be used for CMP content (CC) is exported to another CMP equipment.In order to derive CMP content (CC), not only can consider to be included in the control information among the CMPI of CMP content permission (CCL), and can consider CMP content permission (CCL) the C/R institutional information, cancel information or the like.For example, if the derivation of specific CMP content (CC) is allowed in the control information of CMPI, but uncommitted in C/R institutional information or the like, then can not derive this content.
Fig. 4 shows the process flow diagram according to the method for the process information of the preferred embodiment of the present invention.This illustrates according to being included in the service related information of content and receivedly cancelling the process that application message determines whether to use RL.
With reference to Fig. 4, CMP equipment can be from the service related information (step: S1) of extraneous received content.For example, CMP equipment can be received the FTA broadcast singal from service provider's side joint.Service related information can comprise the information cancelling application message, indicate whether to carry out scrambling, remote access control information or the like.
Cancel application message and be the information of whether the content application content being cancelled process of indicating.Here, content is cancelled process can refer to such process, and it is by checking that cancelling tabulation comes disable access to be present in relevant with corresponding CMP content equipment (or CMP module) or the territory of cancelling in the tabulation when the corresponding CMP content of visit.
This application message of cancelling can be the information that is set to 1 bit of particular value, and this particular value for example is first value (in the present embodiment, it is assumed that ' 1 ') or second value (it is assumed that ' 0 ' in the present embodiment).Here, when cancelling application message and be set to ' 1 ', it can not indicated should application content cancel process, and when cancelling application message and be set to ' 0 ', it can be indicated and application content cancel process.
Simultaneously, the CMP module can convert content to CMP content and the establishment CMP content permission relevant with the CMP content.
The CMP module that has received service related information extract be included in the service related information cancel application message (step: S2), and the application message of determining subsequently to extract of cancelling to be set to first value (for example ' 1 ') still be second value (for example ' 0 ') (step: S3).
Be set to first value if cancel application message, then the customizing messages of CMP module CMP content permission is set to indicate not the information of should application content cancelling process.For example, be set to indicate not the value ' 1 ' of should application content cancelling process if cancel application message, then the CMP module can be set to ' 0 ' (step S4) with the information of cancelling (being the RL concordance list) of CMP content permission.Therefore, when using the CMP content, application content is not cancelled process, because the RL concordance list is set to ' 0 ' (step: S5).
On the other hand, when cancelling application message and be set to second value, the CMP module does not need to carry out special setting up procedure, cancels process because must normally carry out content.In this case, the tabulation of RL index is included in the information of cancelling (being the RL concordance list) of CMP content permission.Therefore, when the execution content was cancelled process, the CMP module can be by finding the RL that is asked to carry out the process of cancelling (step: S6) in the RL concordance list.
As mentioned above, according to the application message of cancelling that sends by the FAT broadcast singal, can forbid specific content application content is cancelled process.When send such as emergency message and public notice, be not limited to equipment or territory and should be by content that anyone sees the time, can utilize this handling procedure.
Simultaneously, the information that is included in the service related information and indicates whether to carry out scrambling can refer to whether indication uses scrambling for the purpose of content protecting when creating the CMP content information.For example, the information that indicates whether to carry out scrambling can be the information of 1 bit, and it is set to particular value, for example ' 1 ' or ' 0 '.Here, when the information that indicates whether to carry out scrambling was set to ' 1 ', it can indicate the scrambling that should not carry out content, and when the information that indicates whether to carry out scrambling was set to ' 0 ', it can indicate the scrambling that carry out content.
Indicate whether that the information of carrying out scrambling can be inserted in the specific fields (field is inserted in for example auxiliary control information) of the CMPI of the CMP content permission relevant with related content.
In addition, be included in the undelegated control information of distribution again that remote access control information in the service related information can refer to be used for preventing content.This remote access control information can be the information of 2 bits, and it can be set to four kinds of values, for example ' 0 ', ' 1 ', ' 2 ' and ' 3 '.For example, ' 0 ' can indicate the remote access that is allowed to by the Internet or another kind of transmission network, and ' 1 ' to ' 3 ' can indicate the strict remote access that progressively requires.
This scrambling remote access control information can be inserted in the specific fields (for example propagating the specific fields of control information) of CMPI of the CMP content relevant with related content permission.
Hereinafter, the service provider who has described when for example broadcasting station when (be called end device) uses the process cancelled to CMP equipment and this CMP equipment with this distribution of contents another CMP equipment in the territory with content propagation.
The broadcasting station is at first created and is cancelled application message, and it indicates whether that application is cancelled to certain content.Here, the broadcasting station can content-based attribute be created and is cancelled application message.For example, preferably, under the situation of not using the process of cancelling, in all devices, see the information such as emergency message.Like this, the broadcasting station can be created and be cancelled application message, and it comprises that indication should not use the information of the information of cancelling.
Thereafter, the broadcasting station can will be cancelled application message by for example FTA signal and send to CMP equipment.This CMP equipment can receive cancels application message, and according to the application of instruction of cancelling application message or do not use the process of cancelling at the use of related content.
For example, CMP equipment can receive cancels application message, and cancels application message based on this and decide and cancel procedure schema.For distribution of contents being arrived the miscellaneous equipment in territory, CMP equipment can shine upon the information of cancelling based on cancelling procedure schema.Here, when cancelling procedure schema indication application model, CMP equipment can shine upon the information of cancelling, so that come the derivation of limiting content based on the information of cancelling that sets in advance.When cancelling procedure schema and indicate non-application model, CMP equipment can shine upon the information of cancelling, so that based on the information of cancelling that sets in advance and the not derivation of limiting content.When mapping, CMP equipment can be that the information of cancelling is shone upon on the basis with each tabulation.For example, CMP equipment can based on cancel procedure schema with each cancel the tabulation be that the information of cancelling is shone upon on the basis.In addition, cancel the attribute of application message can be content-based and equipment at least one, and can be disposable or non-once.When the attribute right and wrong were disposable, CMP equipment can be stored and cancel application message.
Simultaneously, end device can receive the content of distributing based on cancelling information from CMP equipment, and uses this content according to the authority information that sets in advance.Here, can be that the information of cancelling is shone upon on the basis with each tabulation based on cancelling procedure schema, and cancel procedure schema can be based on cancelling application message.
Though described the present invention in conjunction with embodiments of the invention illustrated in the accompanying drawings, the invention is not restricted to this.Be apparent that for those skilled in the art, under situation about not departing from the scope of the present invention with spirit, can carry out various replacements, modifications and changes it.
Claims (according to the modification of the 19th of treaty)
1. one kind with computer implemented method, comprising:
Reception indicates whether the data of cancelling of application content;
The data map that is received is become to cancel information; And
Determine whether described content application content is cancelled process based on the described information of cancelling.
2. method according to claim 1, wherein, the step that receives the data of cancelling that indicate whether application content further comprises:
Receive described data by free rating broadcast singal.
3. method according to claim 1, wherein:
The data that received comprise first or second value, and described first or second value is indicated respectively and should maybe should not be used described content and cancel process.
4. method according to claim 3, wherein, if the data that received comprise described first value, the step that then data map that is received is become to cancel information further comprises:
The described special parameter of cancelling in the information is not set to indicate should use the particular value that described content is cancelled process.
5. method according to claim 1, the permission of wherein said content comprise the described information of cancelling.
Claims (22)
1. a method of protecting content comprises the following steps:
Cancel application message from the external system reception;
Judge and cancel procedure schema based on the described application message of cancelling; And
Shine upon the information of cancelling based on the described procedure schema of cancelling, so that with the equipment of distribution of contents to the territory corresponding with built-in system.
2. method according to claim 1, wherein, at least one in the content-based and equipment of the described attribute of cancelling application message.
3. method according to claim 1, wherein, the described attribute of cancelling application message is any one in the disposable and non-once, and when described attribute right and wrong were disposable, the described application message of cancelling was stored.
4. method according to claim 1, wherein,, shine upon the described step of cancelling information and comprise when cancelling procedure schema indication application model when described: shine upon and describedly cancel information so that limit the step of the derivation of described content based on the information of cancelling that sets in advance.
5. method according to claim 1, wherein,, shine upon the described step of cancelling information and comprise when cancelling procedure schema and indicating non-application model when described: shine upon and describedly cancel information so that cancel information and do not limit the step of the derivation of described content based on what set in advance.
6. method according to claim 1, wherein, the described information of cancelling comprises the information of cancelling the list index table.
7. method of protecting content comprises step:
Content-based attribute is created and is cancelled application message; And
Send the described application message of cancelling, so that cancel the distribution that application message is come control content based on described,
Wherein, judge and cancel procedure schema based on the described application message of cancelling, and shine upon the information of cancelling based on the described procedure schema of cancelling.
8. method according to claim 7, wherein, at least one in the content-based and equipment of the described attribute of cancelling application message.
9. method according to claim 7, wherein, the described attribute of cancelling application message is any one in the disposable and non-once, and when described attribute right and wrong are disposable, stores the described application message of cancelling.
10. method according to claim 7 wherein, when cancelling procedure schema indication application model, is shone upon the described information of cancelling, so that limit the derivation of described content based on the information of cancelling that sets in advance when described.
11. method according to claim 7 wherein, when cancelling procedure schema and indicating non-application model, is shone upon the described information of cancelling when described, so that cancel information and do not limit the derivation of described content based on what set in advance.
12. method according to claim 7, wherein, the described information of cancelling comprises the information of cancelling the list index table.
13. a method of protecting content comprises step:
The content that reception is distributed based on cancelling information; And
Use described content according to the authority information that sets in advance,
Wherein, shine upon the described information of cancelling based on cancelling procedure schema, and the described procedure schema of cancelling is based on cancelling application message.
14. method according to claim 13, at least one in the content-based and equipment of the wherein said attribute of cancelling application message.
15. method according to claim 13, wherein, the described attribute of cancelling application message is any one in the disposable and non-once, and when described attribute right and wrong were disposable, the described application message of cancelling was stored.
16. method according to claim 13 wherein, when cancelling procedure schema indication application model, is shone upon the described information of cancelling, so that limit the derivation of described content based on the information of cancelling that sets in advance when described.
17. method according to claim 13 wherein, when cancelling procedure schema and indicating non-application model, is shone upon the described information of cancelling when described, so that cancel information and do not limit the derivation of described content based on what set in advance.
18. method according to claim 13, wherein, the described information of cancelling comprises the information of cancelling the list index table.
19. a method that adopts Content Management and protection system to come process information, described method comprises step:
Receive the service related information of cancelling application message that comprises content from the external world; And
Cancel application message and described content application or non-application content are cancelled process according to described.
20. method according to claim 19, wherein, the described application message of cancelling is set in first value and second value any one, and this first value indication should not used described content and be cancelled process, and this second value is indicated and be used described content and cancel process.
21. method according to claim 20, wherein, when described when cancelling application message and being set to described first value, use or do not use described content and cancel the step of process and comprise: be included in the customizing messages of the content relevant in permitting and be set to not be employed the particular value that described content is cancelled process with described content.
22. method according to claim 21, wherein, described customizing messages comprises relevant with the described content list index table of cancelling.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US88574807P | 2007-01-19 | 2007-01-19 | |
| US60/885,748 | 2007-01-19 | ||
| US60/886,130 | 2007-01-23 | ||
| US60/887,949 | 2007-02-02 | ||
| US60/889,794 | 2007-02-14 | ||
| US60/890,269 | 2007-02-16 | ||
| US60/891,275 | 2007-02-23 | ||
| US60/894,050 | 2007-03-09 | ||
| US60/980,452 | 2007-10-17 |
Publications (1)
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|---|---|
| CN101542471A true CN101542471A (en) | 2009-09-23 |
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| CN2008800002118A Expired - Fee Related CN101542470B (en) | 2007-01-19 | 2008-01-21 | Method and device for protecting content |
| CNA2008800002137A Pending CN101542471A (en) | 2007-01-19 | 2008-01-21 | Method for protecting content and method for processing information |
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| CN2008800002118A Expired - Fee Related CN101542470B (en) | 2007-01-19 | 2008-01-21 | Method and device for protecting content |
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| US6850914B1 (en) * | 1999-11-08 | 2005-02-01 | Matsushita Electric Industrial Co., Ltd. | Revocation information updating method, revocation informaton updating apparatus and storage medium |
| JP4622082B2 (en) * | 2000-10-20 | 2011-02-02 | ソニー株式会社 | DATA REPRODUCING DEVICE, DATA RECORDING DEVICE, DATA REPRODUCING METHOD, DATA RECORDING METHOD, LIST UPDATE METHOD, AND PROGRAM PROVIDING MEDIUM |
| US20030159049A1 (en) * | 2002-02-21 | 2003-08-21 | Koninklijke Philips Electronics N.V. | Copy-protection by alteration of control signals |
| JPWO2004086235A1 (en) * | 2003-03-26 | 2006-06-29 | 松下電器産業株式会社 | Revocation information transmission method, reception method and apparatus |
| KR100708162B1 (en) * | 2005-04-25 | 2007-04-16 | 삼성전자주식회사 | Method for managing a domain and apparatus therefor |
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| CN101542470B (en) | 2012-04-11 |
| CN101542470A (en) | 2009-09-23 |
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Application publication date: 20090923 |