CN1836221A - Information processing device, information recording medium, information processing method, and computer program - Google Patents
Information processing device, information recording medium, information processing method, and computer program Download PDFInfo
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- CN1836221A CN1836221A CN 200480023678 CN200480023678A CN1836221A CN 1836221 A CN1836221 A CN 1836221A CN 200480023678 CN200480023678 CN 200480023678 CN 200480023678 A CN200480023678 A CN 200480023678A CN 1836221 A CN1836221 A CN 1836221A
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Abstract
There is provided a configuration of an information recording medium containing a number of contents capable of performing use management of each segmented content. As a division region of stored contents in the information recording medium, a plurality of content management units are set so as to correspond to the title, index information, and the like. A unit key as a different encryption processing key is correlated to each of the content management units and stored as encryption data to which a unit key corresponding to each content management unit is applied, for content real data contained at least in the content management unit. Upon reproduction of a content, the unit is identified and decoding is performed by using a unit key corresponding to the unit before reproduction. In an information recording medium containing a number of contents, it is possible to perform use management for each of the segmented contents.
Description
Technical field
The present invention relates to a kind of signal conditioning package, information recording carrier, information processing method and computer program.Particularly, the present invention relates to such a kind of signal conditioning package, information recording carrier, information processing method and computer program, they realize copyright management and utilize management when utilization is used to store the content of carrier of the various contents that need copyright management on the data cell basis, described data cell is by dividing and obtain being stored in content in such recording medium.
Background technology
Can on the recording medium such as DVD (digital universal disc), MD (miniature hdd) and CD (compact disk), be stored as numerical data such as the voice data of music, view data, games, various application program and other various software datas (hereinafter referred to as content) such as film.Recently, developed the dish that allows based on the high density recording of blue laser.In these various carriers, stored digital content to offer the user.The user reproduces and uses content by PC (personal computer) and the transcriber the CD player such as them.
The right of issue of the various contents such as music data and view data and other rights are generally had by its founder or sellers.Therefore, in the distribution of content, convention is each content of configuration, so that use specific service regeulations, that is, only allows the user capture content of being authorized, and for example prevents the not authorized of content thus and duplicates.
Particularly, being used for digital recording recording of information device and recording medium is popularized recently.These digital recorders and digital recording medium make can duplicate record and reproduction, and for example variation of image and audio quality does not take place.This is causing for example following problems then always: issue via the Internet content of bootlegging, wherein in bootlegging on the dish of CD-R and other types the use of the reproducting content stored in the propagation, hard disk of so-called pirated disc of content at PC.
Recently make a recording medium can digitally store mass data by the magnanimity recording medium such as DVD and recording medium of using the blue laser exploitation, such as one or more films.This ability that video information etc. is recorded as numerical information makes and prevents to carry out bootlegging and the protection copyright owner becomes more and more important.Now, various technology have dropped into actual the use for this reason.
For example, utilize DVD player to use Content Scrambling System (scramble system).In described Content Scrambling System, the data of video data, voice data and/or other kinds are recorded on each DVD-ROM (ROM (read-only memory)) in the mode of encrypting, and the key that will be used to decipher institute's ciphered data is given each licensed-in DVD player.Described permission only is given those DVD player that is designed to meet the scheduled operation rule such as preventing the bootlegging operation.Therefore, each licensed-in DVD player can be deciphered the enciphered data that is recorded to each DVD-ROM by using the key of being given, thus from DVD-ROM reproduced image and voice data.
On the other hand, unauthorized DVD player is not used in the key of deciphering, so these players can not be deciphered the enciphered data that is recorded on the DVD-ROM.Therefore, the DVD-ROM that each DVD player that the configuration of described Content Scrambling System prevents from not satisfy permissive condition is reproduced the record numerical data has got rid of illegal replicate run thus.
Recently, so-called home network is popularized always, and this popularizing supported that by the growth of data communication network in data communication network, housed device, computing machine and peripheral components interconnect each other by communication network.Home network based on networking between the device communication and be that the user has brought convenience and comfortable, with the data-handling capacity of sharing the networking device with between these devices, transmit content.For these advantages, it is universal day by day that home network is expected at future.
Aforesaid advanced day by day networking technology has increased the chance of using the content of storing from the device that is connected to home network information storage medium.The anti-locking system of the bootlegging of above-mentioned prior art is based on basic thought: only for example allowing content playback on a licensed-in device.Therefore, this system does not consider fully by for example another networking device, PC or televisor and visits networking device, home server or the player that for example has been mounted recording medium, reproduces the situation of content thus via network.
Traditionally, the main type of service of content is to carry out a content of storing by a transcriber in recording medium, therefore for the content use and management, only will be provided with such as the content right to use the permission in each perhaps each transcriber just be enough to.But, the content use and management configuration that the recent quick increase on the storage size of carrier and the recent rapid digitizing of housed device and electron device and networking need be different with traditional person.Particularly, following requirements is for example arranged.
(1) realize following configuration: it allows a plurality of contents of record on recording medium, and manages the use of each content that writes down;
(2) realize content use and management configuration: it can use such as the content in the particular network of home network, promptly for example carries out content playback by the networking device or for the home server reproducting content; And
(3) realize following configuration: be used for reproducing needed information to specific user's distributing contents safely, the needed information of described content playback is such as being applied to for example key of the deciphering of content via network.
Need above-mentioned configuration (1)-(3) are realized.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of signal conditioning package, information recording carrier, information processing method and computer program, be used for using, for realizing copyright management and use and management by being divided in each data that content that recording medium stores obtains in the content of the carrier that is used for storing the various contents that need copyright management.
In carrying out the present invention, according to its first aspect, a kind of information recording carrier that is used for memory contents, has such configuration, content management units wherein is set, and this content management units is the data division zone, and this data division zone comprises following at least any one:
Be stored in the content in the information recording carrier;
The contents reproducing section specification file;
The content playback handling procedure;
The application references file; And
Use execute file,
Data file that comprises in described content management units and any one in the program file are stored as enciphered data based on the separate unit key corresponding to described content management units.
In above-mentioned information recording carrier, at least some content management units that are provided with in described information recording carrier are corresponding to the heading message that is stored in each content in the described information recording carrier and index information and the unit that is provided with, and determine unique content management units and the unit key corresponding with it based on the selection of described heading message and described index information.
In above-mentioned information recording carrier, described heading message and described index information can offer the user.
In above-mentioned information recording carrier, at least some content management units that are provided with in described information recording carrier are the unit that are provided with corresponding to being stored in a plurality of content playback handling procedures in the described information recording carrier, and determine unique content management units and with it corresponding unit key based on determining of described a plurality of content playback handling procedures of carrying out on the transcriber that described information recording carrier will be installed thereon.
In above-mentioned information recording carrier, at least some content management units that are provided with in described information recording carrier are the unit that are provided with corresponding to being stored in a plurality of contents reproducing section specification files in the described information recording carrier, and determine unique content management units and with it corresponding unit key based on the described contents reproducing section specification file of being selected by the described content playback handling procedure of carrying out on the transcriber that described information recording carrier will be installed thereon.
In above-mentioned information recording carrier, at least some content management units that are provided with in described information recording carrier are the unit that are provided with corresponding to as being stored in the clip files of a plurality of content True Data storage files in the described information recording carrier, and based on determining unique content management units and with it corresponding unit key by the selected reproduction clip files of carrying out on the transcriber that described information recording carrier will be installed of described content playback handling procedure thereon.
In above-mentioned information recording carrier, the content management units that is provided with in described information recording carrier comprises: first module, and it comprises the content True Data that is stored in the described information recording carrier; And Unit second, it does not comprise the content True Data, but comprise be stored in described information recording carrier in the corresponding application execute file of application references file, described first module comprises by different unit key ciphered data files and at least one in the program file with Unit second.
In above-mentioned information recording carrier, at least some content management units that are provided with in described information recording carrier are configured to comprise the application execute file that is stored in the described information recording carrier and the unit of content playback handling procedure.
In above-mentioned information recording carrier, at least some content management units that are provided with in described information recording carrier are configured to comprise to be used execute file, content playback processing file and is being stored in the application resource file that uses in the execution of the described application execute file in the described information recording carrier.
In above-mentioned information recording carrier, some content management units that are provided with in described information recording carrier are configured to comprise the contents reproducing section specification file, as the AV stream file of the content True Data that will quote from described contents reproducing section specification file, use execute file and be stored in the unit of the application resource file that uses in the execution of the described application execute file the described information recording carrier.
In above-mentioned information recording carrier, stored admin table, in this admin table, the unit is provided with unit information, content management units identifying information and unit key identifying information as the information that forms each described content management units and the connection that is relative to each other.
In above-mentioned information recording carrier, described information recording carrier store status admin table has wherein been stored and is used to indicate each described content management units to be in the state that is independent of network or is in status information with the network associated state.
In above-mentioned information recording carrier, described condition management table is stored the initial state information at least of each content management units.
In above-mentioned information recording carrier, described condition management table is stored the initial state information and the current state information of each content management units.
In above-mentioned information recording carrier, stored content use and management information table, described content use and management information table storage is used the restricted information that is associated with the content of each content management units.
In above-mentioned information recording carrier, described content use and management information table record uses restricted information, and described use restricted information is used to indicate and is in the state that is independent of network or is in and the network associated state.
In above-mentioned information recording carrier, described content use and management information table has and is used for the information that instruction content is controlled based on the obtainable control information operation in outside.
In above-mentioned information recording carrier, described content use and management information table comprises the information that is used to specify the server that is used to obtain described control information operation.
In above-mentioned information recording carrier, described information recording carrier is also stored the content that is used for replication processes or stream reproduction except original contents.
In above-mentioned information recording carrier, the described content that is used for replication processes or stream reproduction has the data layout different with the data layout of described original contents.
In carrying out the present invention, according to its second aspect, a kind of signal conditioning package is used for carrying out the reproduction of content that is stored in information recording carrier, comprising:
Unit key is obtained part, be used to discern content management units, described content management units comprises the data area, described data area is selected to be used for reproducing or carrying out the interior perhaps program that is stored in information recording carrier, so that obtain the unit key corresponding to the content management units that is identified; And
Data processing section is used for coming decrypted packet to be contained in the enciphered data of described content management units by using by the unit key of described unit key acquisition unit component selections.
In above-mentioned signal conditioning package, described unit key is obtained part and is configured to detect based on admin table the content management units conversion, in described admin table, the unit is provided with unit information, content management units identifying information and the unit key identifying information connection that is relative to each other, but and carries out the applying unit key according to the information that is detected and change and handle.
Above-mentioned signal conditioning package also comprises: upgrade key information piece processing section, be used for carrying out described unit key and obtain processing by deciphering renewal key information piece, described renewal key information piece can only use and be stored in the key that has in the usufructuary signal conditioning package of legal content and handle, and described key is arranged to corresponding with described content management units.
In above-mentioned signal conditioning package, described renewal key information piece obtains from the server of information recording carrier or networking.
Above-mentioned signal conditioning package also comprises: the checking processing section is used for verifying processing with the server of networking.Successfully the checking after, described unit key obtain the part or described data processing section from described server obtain comprise unit key, the needed information of content playback.
Above-mentioned signal conditioning package also comprises: upgrade key information piece processing section, be used for upgrading the key information piece by deciphering and obtain the authentication secret that the checking that will be applied to the server that adopts networking is handled, described renewal key information piece can only use and be provided with and be stored in the key that has in the usufructuary signal conditioning package of legal content corresponding to described content management units and handle; And the checking processing section, be used for coming authentication server by using the authentication secret that processing obtained of being undertaken by described renewal key information piece processing section.Successfully the checking after, described unit key obtain the part or described data processing section from described server obtain comprise unit key, the needed information of content playback.
In above-mentioned signal conditioning package, described data processing section determines that described content management units is in the state that is independent of network or is in and the network associated state, and carries out content according to definite result and use control.
In above-mentioned signal conditioning package, described content uses control to be performed based on being used to store the content use and management information table of the control information that is associated with the use of each described content management units.
In above-mentioned signal conditioning package, described data processing section receive be stored in described information recording carrier in the corresponding control information operation of content, and, reproduce or duplicate the described content that is stored in the described information recording carrier according to control based on the control information operation that is received.
In above-mentioned signal conditioning package, at least one among server notification user identifier, signal conditioning package identifier and the information recording carrier identifier of networking of described data processing section, receive the control information operation corresponding from the server of described networking with the identifier of being notified, and, reproduce or duplicate the content that is stored in the described information recording carrier according to control based on the control information operation that is received.
In carrying out the present invention, according to its third aspect, a kind of information processing method is perhaps carried out the program that is stored in information recording carrier in being used for reproducing, comprise step:
Identification content management units, this content management units comprise and are selected to reproduce or carry out the data area that is stored in perhaps described program in described in the information recording carrier;
Select and the corresponding unit key of institute's content identified administrative unit; And
By using selected unit key to come decrypted packet to be contained in enciphered data in the described content management units, to carry out that content playback is handled or program is carried out and handled.
Above-mentioned information processing method also comprises step: detect the content management units conversion based on admin table, but and carry out the change of applying unit key according to the information that is detected and handle, in described admin table, the unit is provided with unit information, content management units identifying information and the unit key identifying information connection that is relative to each other.
Above-mentioned information processing method also comprises step: the performance element key obtains processing by the key information piece of deciphering renewal, the key information piece of described renewal can only use and be stored in the key that has in the usufructuary signal conditioning package of legal content and handle, and described key is arranged to corresponding with described content management units.
In above-mentioned information processing method, described renewal key information piece obtains from the server of information recording carrier or networking.
Above-mentioned information processing method also comprises step: adopt the server of networking to verify processing, and after checking successfully, from described server obtain comprise unit key, the needed information of content playback.
Above-mentioned information processing method also comprises step: the key information piece that upgrades by deciphering obtains the authentication secret that the checking that will be applied to the server that adopts networking is handled, and the key information piece of described renewal can only use and be provided with and be stored in the key that has in the usufructuary signal conditioning package of legal content corresponding to described content management units and handle; The authentication server by using the authentication secret that processing obtained of being undertaken by the key information piece processing section of described renewal; And after good authentication, from described server obtain comprise unit key, the needed information of content playback.
Above-mentioned information processing method also comprises step: determine that described content management units is in the state that is independent of network or is in and the network associated state, and carry out content according to definite result and use control.
In above-mentioned information processing method, described content uses control to be performed based on being used to store the content use and management information table of the control information that is associated with the use of each described content management units.
Above-mentioned information processing method also comprises step: from the server of networking receive be stored in described information recording carrier the corresponding control information operation of content, and, reproduce or duplicate the content that is stored in the described information recording carrier according to control based on the control information operation that is received.
Above-mentioned information processing method also comprises step: at least one among server notification user identifier, signal conditioning package identifier and the information recording carrier identifier of networking; Receive the control information operation corresponding from the server of described networking with the identifier of being notified; And, reproduce or duplicate the content that is stored in the described information recording carrier according to control based on the control information operation that is received.
In carrying out the present invention, according to its fourth aspect, a kind of computer program is perhaps carried out the program that is stored in information recording carrier in being used for reproducing, comprise step:
Identification content management units, described content management units comprise and are selected to reproduce or carry out the data area that is stored in perhaps described program in described in the described information recording carrier;
Select and the corresponding unit key of institute's content identified administrative unit; And
By using selected unit key to come decrypted packet to be contained in enciphered data in the described content management units, to carry out that content playback is handled or program is carried out and handled.
In carrying out the present invention, according to its 5th aspect, a kind of server is used for providing to transcriber being used for the unit key of decryption content, and described transcriber is used for reproducing the content that is stored in information recording carrier, and described server comprises:
Database is used to store the unit key corresponding with content management units;
The checking processing section is used to verify described transcriber; And
Data processing section is used for providing described unit key after the good authentication of described checking processing section.
Above-mentioned server also comprises: the key information blocks of data storehouse of renewal, the key information piece that is used for storage update, and will be used to verify that the authentication secret of processing saves as enciphered message, the key information piece of described renewal can only use the key of storing in having the usufructuary signal conditioning package of legal content to handle; And the authentication secret database, be used to store described authentication secret.Described checking processing section provides described renewal key information piece to the transcriber of carrying out content playback, and carries out checking by the described authentication secret that application is obtained from described authentication secret database and handle
Should be noted that can by computer-readable storage medium, communication medium, such as CD, FD and MO recording medium or provide according to computer program of the present invention such as the communication medium of network can be carried out various program codes on it computer system.Provide these programs to realize processing with computer-reader form according to the described program on computer system.
Describe many other characteristics of the present invention, advantage and other purposes in detail by following explanation and accompanying drawing.Should be noted that also term " system " expression as used herein always is not arranged in the logical collection of the multiple arrangement of same shell.
As mentioned above and according to embodiments of the invention, be set to be used for the data area that institute's memory contents of the information recording carrier of memory contents obtains by division corresponding to a plurality of content management units of title, index and other information.Different units key as encryption key is assigned to different content management units.At least the content True Data that comprises in each content management units is encrypted corresponding to the unit key of described content management units by using, and storage institute ciphered data.The configuration of this novelty allows the content use and management on unit basis; More specifically, the configuration of described novelty allows various contents to use control, such as reproducing control, duplicate control etc.According to the present invention, can be independently carrying out content use control on the content management units basis, so that, can manage the content that each is divided being used for storing for example information recording carrier of a plurality of contents.
And, according to embodiments of the invention, in the signal conditioning package that is used for carrying out the reproduction of content that is stored in information recording carrier, the identification content management units, described content management units comprises the data area that is selected to be used for reproducing the content that is stored in information recording carrier, selects the unit key corresponding to institute's content identified administrative unit; And use selected unit key to come decrypted packet to be contained in enciphered data in the described content management units, reproduce content thus.The feasible content that can be reproduced in reliably in each content management units of the configuration of this novelty.And, in cell translation, carry out the content key conversion, making thus can be by carrying out content playback according to correct secret key decryption when cell translation takes place.
And, according to embodiments of the invention, comprise and be selected for the content management units of reproducing the data area be stored in the content in the information recording carrier if in signal conditioning package, discerned, and by obtaining to carry out content playback corresponding to the unit key of institute's content identified administrative unit, the configuration that the server of then realizing wherein connecting from the outside obtains the control information operation such as copy control information and reproduction control information, allow the processing such as using the copy control information that upgrades thus, described signal conditioning package is used for carrying out the reproduction of content that is stored in information recording carrier.
And, according to embodiments of the invention, if comprise and be selected for the content management units of reproducing the data area be stored in the content in the information recording carrier in signal conditioning package, having discerned, and by obtaining to carry out content playback corresponding to the unit key of institute's content identified administrative unit, the configuration that the server that then can realize wherein connecting from the outside obtains the control information operation such as copy control information and reproduction control information, carry out processing according to controlling corresponding to the independent operation of each user and each transcriber thus, described signal conditioning package is used for reproducing the content that is stored in information recording carrier.
Description of drawings
Fig. 1 is the synoptic diagram that diagram is stored in the configuration of the data in the information recording carrier.
Fig. 2 is the synoptic diagram that diagram is stored in a kind of illustration form of the content in the information recording carrier.
Fig. 3 is the synoptic diagram that diagram is stored in the another kind of illustration form of the content in the information recording carrier.
Fig. 4 is the content management units that will be provided with for the content that is stored in the information recording carrier is wherein arranged in diagram by title a synoptic diagram.
Fig. 5 is illustrated in corresponding to the illustration configuration of cells in the content management units configuration of title and the figure of illustration unit key admin table.
Fig. 6 diagram is wherein arranged by application references will be for the synoptic diagram of the content management units that is stored in the content setting in the information recording carrier.
Fig. 7 is illustrated in corresponding to the illustration configuration of cells in the content management units configuration of application references and the figure of illustration unit key admin table.
Fig. 8 is the content management units that will be provided with for the content that is stored in the information recording carrier is wherein arranged in diagram by playback program a synoptic diagram.
Fig. 9 is illustrated in corresponding to the illustration configuration of cells in the content management units configuration of playback program and the figure of illustration unit key admin table.
Figure 10 is the content management units that will be provided with for the content that is stored in the information recording carrier is wherein arranged in diagram by playlist a synoptic diagram.
Figure 11 is illustrated in corresponding to the illustration configuration of cells in the content management units configuration of playlist and the figure of illustration unit key admin table.
Figure 12 is the content management units that will be provided with for the content that is stored in the information recording carrier is wherein arranged in diagram by montage a synoptic diagram.
Figure 13 is illustrated in corresponding to the illustration configuration of cells in the content management units configuration of montage and the figure of illustration unit key admin table.
Figure 14 be diagram wherein use with content be the synoptic diagram of the exemplary configuration of CPS unit independently.
Figure 15 is illustrated in wherein to use and content is the illustration configuration of cells in the configuration of independently CPS unit and the figure of illustration unit key admin table.
Figure 16 is the wherein title that uses in movie contents for example of parallel processing and such as the synoptic diagram of the illustration layer configuration of the application of game content and web content of diagram.
Figure 17 is the wherein title that uses in movie contents for example of parallel processing and the synoptic diagram that is provided with such as the illustration CPS unit of the application of game content and web content of diagram.
Figure 18 be title that wherein parallel processing uses in movie contents for example is shown and be provided with such as the CPS unit in the layer configuration of the application of game content and web content in the illustration configuration of cells and the figure of illustration unit key admin table.
Figure 19 be illustrated in the network associated state in content network independence and the synoptic diagram of content type of service and service regeulations.
Figure 20 be illustrated in the network associated state in content network independence and the synoptic diagram of content replication rule.
Figure 21 is the figure that is illustrated in the illustration data in the content status admin table.
Figure 22 is the figure that is illustrated in the illustration data in the content use and management information table.
Figure 23 illustrates the figure that has corresponding to the illustration content use and management information table of the contents management information of the content status that writes down in the variable pitch data.
Figure 24 is Situ one who is illustrated in the position of data storage catalogue and admin table on the information recording carrier.
Figure 25 is the block scheme that diagram is used to reproduce the exemplary configuration of the signal conditioning package of the information recording carrier of installation on it.
Figure 26 is the block scheme that diagram is used for using the illustration network configuration of the content that is stored in information recording carrier.
Figure 27 is the process flow diagram that the indication content playback is handled sequence.
Figure 28 is the process flow diagram that sequence is handled in the indication content replication.
Figure 29 is the process flow diagram of indication content stream reproduction processes sequence.
Figure 30 is the process flow diagram of indication content remote reproduction processes sequence.
Figure 31 is that the exemplary information that diagram is used to obtain the needed unit key of content playback and other information is obtained the block scheme of processing.
Figure 32 is the tree structure diagram that diagram may be used on the layer tree construction of the encryption of key and data and distribution.
Figure 33 is the block scheme of diagram based on illustration distribution and the illustration deciphering of the RKB (more new key block) of unit key.
Figure 34 is that a kind of exemplary information that diagram is used to obtain the needed unit key of content playback and other information is obtained the block scheme of processing.
Figure 35 is that the another kind of exemplary information that diagram is used to obtain the needed unit key of content playback and other information is obtained the block scheme of processing.
Figure 36 is that the another kind of exemplary information that diagram is used to obtain the needed unit key of content playback and other information is obtained the block scheme of processing.
Figure 37 is that the another kind of exemplary information that diagram is used to obtain the needed unit key of content playback and other information is obtained the block scheme of processing.
[drawing reference numeral explanation]
100 information recording carriers
101 contents
102 dish ID
210 index (title)
220 playback programs
230 reproducing part specification files (playlist)
240 montages
251 clip information
261,262,263 AV stream
The 311-315 application references
321,322,323 playback programs
331 image files
332 audio files
333 data files
371,372 application references files
373-375 uses execute file
373-376 381-384 playback program
411,412 content management units (CPS unit)
415,416 content management units (CPS unit)
421,422 content management units (CPS unit)
431,432 content management units (CPS unit)
441,442 content management units (CPS unit)
451-454 content management units (CPS unit)
461-463 content management units (CPS unit)
501 contents management information configuration datas
502 contents management information configuration datas
503 contents management information configuration datas
511 content-data parts
512 managing data selections
600 signal conditioning packages
601 buses
610 input and output interfaces
620 TS/PS processing element
The decoding of 630 mpeg encodeds
640 input and output interfaces
641 moduluses, digital to analog converter
650 encryption parts
660 ROM
670 CPU
680 storeies
690 drivers
691 information recording carriers
710 home networks
711 record and transcribers
712 home servers
713 content playback devices
714 content playback devices
715 portable devices
720 external servers
810 information recording carriers
811 upgrade key information piece (RKB)
812 unit key produce information
820 transcribers
821 unit key
822 upgrade key information piece processing section
823 unit key are obtained part
824 data processing sections
830 information recording carriers
831 contents
840 transcribers
841 device key
842 unit key are obtained and data processing section
850 servers
851 device key databases
852 databases
853 checking processing sections
854 data processing sections
855 server key databases
860 information recording carriers
861 upgrade key information piece (RKB)
862 contents
870 transcribers
871 device key
872 checking processing sections
873 upgrade key information piece processing section
874 unit key are obtained and data processing section
880 servers
881 authentication secret databases
882 databases
883 checking processing sections
884 data processing sections
910 information recording carriers
911 contents
920 transcribers
921 device key
922 upgrade key information piece processing section
923 checking processing sections
924 unit key are obtained and data processing section
930 servers
931 upgrade key information piece (RKB) database
932 authentication secret databases
933 verification portion
934 databases
935 data processing sections
Embodiment
Will be in conjunction with further describing the present invention by way of example with reference to accompanying drawing according to signal conditioning package of the present invention, information recording carrier, information processing method and computer program.To carry out described explanation in the following sequence:
1. the configuration of the data of on carrier, storing
2. the exemplary configuration of the content of being stored
3. content-encrypt of being stored and use and management configuration
4. the content use and management of independence Network Based and connection status
5. the management of the content replication on network
6. corresponding to the management information of each content management units
7. the exemplary configuration of information recording carrier transcriber
8. illustration network configuration
9. processing execution sequence
10. the necessary information in content playback is obtained processing
[configurations of the data of 1. on carrier, storing]
At first, the configuration of the data that explanation is stored on carrier.Referring to Fig. 1, show a kind of information recording carrier of illustration, stored the content that can be applied on it according to processing of the present invention.Shown in this be the example that wherein is stored in canned data on the ROM dish, described ROM is the content stores dish.
This ROM dish is the legal content stores information recording carrier of making in dish manufacturing works under so-called content power owner's permission, and described content owner has legal content copyright or right of issue.Should be noted that in the following embodiments, with the example of disc-shape recoding medium as carrier; But, obvious for those skilled in the art, but the present invention can be applied to the application configuration based on various other forms of carriers.
As shown in Figure 1, the content 101 formed by one or more content (a) and (b) etc. of information recording carrier 100 storage.Described content comprises various contents, such as music data, film, rest image and other view data, games and web content.These contents comprise various forms of information, such as only based on the data that read from information recording carrier 100 and information available, the data that provide based on the data that read from information recording carrier 100 with from the server that is connected to network and information available.
For one or more contents of storing 101, a kind of administration configuration is provided, wherein, can manage each content to use.Describe this use and management below in detail.Described information recording carrier 100 also will coil ID 102 and be stored as the information that is used for identifying information recording medium 100.
[the 2. exemplary configuration of a memory contents]
Illustrate according to the wherein illustration storage format of memory contents in information recording carrier of the present invention below with reference to Fig. 2.Referring to Fig. 2, show the wherein data layout of store movies content.Described movie contents for example is HD (high definition) movie contents, and it is the high definition moving image data.
As shown in Figure 2, the storage format of mobile picture material has four layers:
(A) index (title) 210;
(B) playback program (movie objects) 220;
(C) reproducing part specification file (playlist) 230; And
(D) montage (content data file) 240
Described (D) montage (content data file) 240 has montage 241,242 and 243, and they are the content data file that are divided, and each montage 241 has AV (audiovisual) stream file 261 and clip information file 251.
(C) reproducing part specification file (playlist) 230 has a plurality of reproducing part specification files (playlist) 231,232 and 233.Each of these reproducing part specification files (playlist) has such configuration, described configuration is used for being chosen in one of a plurality of AV stream data files that montage (content data file) 240 comprises, and have one or more playitems playitem, be used for the particular data of selected AV stream data file partly is appointed as reproduction beginning and end point.When having selected a reproducing part specification file (playlist), determine to reproduce sequence according to the playitems playitem of reproducing part specification file (playlist).
For example, if reproducing part specification file (playlist) 231 is selected to be used for content playback, then reproduce specific area of data a-b and c-d as AV (audiovisual) stream file 261 of the content that in montage 241, comprises, because the playitems playitem 234 that is associated with reproducing part specification file (playlist) 231 has the starting point of reproduction a and reproduces end point b in montage 241, and playitems playitem 235 has the starting point of reproduction c and reproduces end point d in montage 241.
Described (B) playback program (movie objects) 220 has the playback program 221-224 as movie objects.Playback program 221-224 is a contents reproducing program, they are provided for presenting the needed ability of content (HD movie contents) of reproducing able to programmely, such as the specification of the reproducing part specification file (playlist) that will reproduce, the response for the operation information of being imported by the user that is associated with the content playback processing, the jump between two titles and the branch of reproducing sequence.Playback program 221-224 can jump each other.According to the normalized illustration of user or pre-set programs, the playback program that in fact selection will be carried out, and by selecting to reproduce content to reproduce by reproducing part specification file (playlist) 230 of selected playback program appointment from montage 240.
(A) index (title) the 210th is present in the content title on the display of for example carrying out content playback.This index can be by User Recognition, and is used as the index that begins reproduction of content.In described accompanying drawing, show a plurality of title 211-213; The user can determine the theme that reproduces by any one that select these titles.
As shown in the figure, title 211-213 is associated with playback program (movie objects) 221,223 and 224 respectively.When the user selected a title, beginning was based on the reproduction processes of the playback program that is associated with selected title.Should be noted that except normal title to also have the title that when setting and start information recording medium, reproduces automatically and be used for the title that menu shows.
Referring to Fig. 3, an illustration form is depicted as the form that is used for to according to recording medium memory contents of the present invention, to be used to write down for example game content and web content.(D) identical with as with reference to the form of HD (high definition) movie contents of the described high definition moving image data of Fig. 2 of the structure of montage 240 and (C) reproducing part specification file (playlist) 230.
Different like that with conduct with reference to the form of HD (high definition) movie contents of the described high definition moving image data of Fig. 2, (A ') uses 300 and is configured to a such layer, wherein, application references data and the playback program that is equal to title exists.
The 300 various application references that comprise as the application references that can represent to the user are used on upper strata (A '), such as recreation 1 311, recreation 2 312, WEB (WWW) 1 313, WEB 2 314 with use other application references 315 of using executive capability and playback program (object) 321,322,323 etc.These playback programs comprise for example java applet and HTML program.
Playback program 321-323 comprises program, described program reads various data files from the server of carrier or networking---such as based on the image file 331 of JPEG, PNG and BMP, based on audio file 332 and the compressed audio of PCM---and the various data files 333 such as text and database, and carry out and handle, export the result by display monitor or loudspeaker thus.
These playback programs 321-324 has various configurations corresponding to the program classification, and described program classification is represented such as recreation and WWW.
[3. content-encrypt of being stored and use and management configuration]
Below with reference to Fig. 4 a kind of Content Management configuration is described, wherein, the content that is stored in the information recording carrier is divided, and realizes for the different use control of each content that is divided.
In the present invention, will be assigned as the basic configuration that is used to realize for the different use control of each content that is divided for the different key of each content that is assigned with (or unit key).Wherein distributed the unit of a unit key to be called as content management units (or CPS unit).
By using each unit key to encrypt to belong to the content of each unit, and when reproducing content so that the time spent, the key that is assigned to each unit by use is deciphered the content of being encrypted.Can manage each unit key independently.For example, the unit key that will be assigned to unit A is set to the key that can obtain from information recording carrier.The unit key that is assigned to unit B can be only to have visited the server of networking and carried out the key that can obtain under the condition of predetermined rules for example user.Therefore, the obtaining with administration configuration of key corresponding to each unit can have independently form.
There are two or more unit that wherein distribute a key, promptly exist two or more content management units (CPS unit) that form is set.These forms are described below in regular turn.
(a) unit based on title is provided with configuration
At first, with reference to Fig. 4, the example of coming deploy content administrative unit (CPS unit) according to title will be described.Fig. 4 shows conduct corresponding to the pairing example of the data layout above-mentioned high definition moving image data of reference Fig. 2, HD (high definition) movie contents.
It is the example that has wherein disposed with one or more title associated content administrative units (CPS unit) that the unit based on title shown in Fig. 4 is provided with configuration.
In Fig. 4,411 content management units (CPS unit) the 1st, the administrative unit that title 1 for 211 and 212 title 2 are provided with, 412 content management units (CPS use) the 2nd, the administrative unit that the title 3 for 213 is provided with.
411 content management units (CPS unit) 1 comprises montage 241 and montage 242, and by using the encryption key Ku1 that is provided with for 411 content management units (CPS unit) 1 to encrypt AV stream file 261 and 262 as the True Data of the content that in these two montages 241 and 242, comprises.
Be set to the encryption key Ku1 that is associated with 411 content management units (CPS unit) 1 in order to use specified 211 title 1 or 212 title 2 to carry out content playback, to require the user to obtain, enter thus and wherein can decipher the state that reproduces content.
412 content management units (CPS unit) 2 comprises montage 243.Encrypt AV stream data file 263 by using as the True Data of the content that comprises in this montage 243 as the encryption key Ku2 that is provided with for 412 content management units (CPS unit) 2.
In order to use specified 213 title 3 to carry out content playback, require the user to obtain to be set to the encryption key Ku2 that is associated with 412 content management units (CPS unit) 2, enter thus and wherein can decipher the state that reproduces content.
The following describes be used for using said method, at the needed restriction rule of each layer.
(1) forbids the reproduction of any AV stream file not to be covered in the content management units (CPS unit) under the specific title.The playback program of carrying out by the selection of its title (movie objects) comprises the reproduction order of the AV stream file that the content management units (CPS unit) that only is used under that title comprises.
(2) reproducing part specification file (playlist) can be quoted two or more different montages, but these montages must be included in the content management units (CPS unit).
When reproducing the title that belongs to a content management units (CPS unit), these restrictions are set will not cause the change of unit key.Therefore, make that seamless link is easier for being reproduced in the AV stream in the title.
Should be noted that because title is for the obvious information of user, when therefore carrying out key distribution and Content Management, easy for user's description and Content Management when content-based administrative unit as described below (CPS unit).
Illustrate that below with reference to Fig. 4 deploy content administrative unit (CPS unit) is to satisfy the example of above-mentioned restriction rule on the title basis.In Fig. 4,211 title 1 and 212 title 2 belong to 411 content management units (CPS unit) 1.
When selecting the title 2 of 211 title 1 and 212, at first the playback program that will carry out (movie objects) is one of playback program 221-223.These playback programs (movie objects) 221-223 comprises the order that is used for only reproducing the AV stream file that belongs to 411 content management units (CPS unit) 1, promptly be used for only being reproduced in the AV stream file 261 that comprises in the montage 241 and 242 of Fig. 4 and 262 order, the order of any AV stream file that and these playback programs (movie objects) 221-223 does not comprise being used for reproducing and belongs to other guide administrative unit (CPS unit)---for example 412 content management units (CPS unit) 2---promptly is used for being reproduced in the order of the AV stream file 263 that montage 243 comprises.
Playback program 221-223 only is associated with the reproducing part specification file (playlist) 231 and 232 that belongs to identical 411 content management units (CPS unit) 1, the montage 241 and 242 that belongs to identical 411 content management units (CPS unit) 1.If jump belonging between the playback program (movie objects) of 411 content management units (CPS unit) 1, then becoming by the content of carrying out the object that playback program (movie objects) reproduces only is the montage 241 and 242 that belongs to 411 content management units (CPS unit) 1, and as long as preserve identical unit key Ku1, then these montages can be reproduced, and do not comprise irreproducible problem.
But, if playback program 221-223 comprises the order that is used for reproducing the AV stream file belong to another content management units (CPS unit), for example 412 content management units (CPS unit) 2, the AV stream file 263 that promptly comprises in montage 243, then becoming need be corresponding to the different units key K u2 of 412 content management units (CPS unit) 2.Therefore, if do not preserve unit key Ku2, then will cause the mistake such as reproduction stops.
Therefore, if select a title to be used for the execution of content playback, then can not reproduce any AV stream file that comprises in the affiliated content management units (CPS unit) of selected title.Therefore, any playback program (movie objects) of carrying out during by the reproduction processes of selecting title to begin should not comprise the order that is used for being reproduced in any AV stream file that the content management units (CPS unit) under that title comprises.
But each playback program (movie objects) can have the order that is used for changing between title, i.e. the title jump commands.Shown in the arrow 413 as shown in Figure 4, the playback program 223 that belongs to 411 content management units (CPS unit) 1 can have the jump commands that is used to jump to any title that belongs to 412 content management units (CPS unit) 2.
When for example header conversions takes place the title jump commands, transcriber is determined at reproduction period the title change to have taken place.
In Fig. 4, the reproduction period of title 2 212, it is feasible sending the order that is used to jump to 213 title 3.In this case, after having carried out jumping, enter the state of execution by the reproduction of the playback program 224 of 213 title 3 appointments.
Though not shown, there is the comprehensive playback control program that is used for overall control content reproduction processes.This comprehensive playback control program is totally controlled for content playback.More specifically, this program detects the generation of the conversion between content management units (CPS unit).As shown in Figure 4, the configuration that wherein is provided with the content management units (CPS unit) based on title has content management units (CPS unit) corresponding to each title and unit key information management table " configuration of cells and unit key admin table " shown in Figure 5, and manages according to this admin table.
Should be noted that described configuration of cells and unit key admin table are such admin tables, wherein, the unit is provided with unit information, content management units identifying information and the unit key identifying information connection that is relative to each other.This table is configured to make as being associated with the identifier (Ku1 and Ku2 etc.) of corresponding unit key corresponding to the identifier (CPS1 and CPS2 etc.) of the identifying information of the content management units of each title.This admin table is not stored actual unit key data.Obtain processing by the unit key of being scheduled to and obtain each unit key that is used in content-encrypt and the actual use of deciphering.To illustrate that below this unit key obtains processing.
When detecting owing to the conversion of content management units (CPS unit) that header conversions takes place, described comprehensive playback control program is carried out conversion to the key that will use by content management units (CPS unit) conversion.Perhaps, described comprehensive playback control program is carried out for example message display process, is used to the message that shows that the request key obtains.
If the key K u2 of 411 content management units (CPS unit) 1 key K u1 and 412 content management units (CPS unit) 2 has been stored in the storer of the transcriber of carrying out the content playback processing thereon, the described comprehensive playback control program that then is used for overall control content reproduction processes is changed and is changed between the key that will use by content management units (CPS unit) when detecting owing to content management units (CPS unit) conversion that header conversions takes place, for example from Ku1 to Ku2.
The key K u1 of the content management units iff 411 (CPS unit) 1 has been stored in the storer of carrying out the transcriber that content playback handles thereon and 412 content management units (CPS unit) 2 also is not stored, the comprehensive playback control program that then is used for overall control content reproduction processes is carried out such as the processing that shows that the request key obtains detecting when owing to header conversions the conversion of the content management units (CPS unit) 2 to 412 taking place.
(b) unit based on application references is provided with configuration
The example of wherein coming deploy content administrative unit (CPS unit) according to application references is described below with reference to Fig. 6.
With reference to Fig. 4 and above-mentioned example corresponding to as the front with reference to the data layout described high definition moving image data of Fig. 2, HD (high definition) movie contents.Fig. 6 shows corresponding to for example with reference to the example of aforesaid game content of Fig. 3 and web content.
Above-mentioned upper strata (A ') is used 300 and is configured to a layer, and the application references data and the playback program that wherein are equal to title exist together.
In this case, content management units is set to be associated with application references data such as the WWW 1 of 311 recreation 1 and 313.
In Fig. 6, recreation 1 for 311 and 313 WWW 1 are provided with 415 content management units (CPS unit) 1, and for the WWW 2 of 312 recreation 2,314 and other 315 416 playback program (movie objects) 1 are set.
415 content management units (CPS unit) 1 comprises montage 241 and montage 242, and by using the encryption key Ku1 that is provided with for 415 content management units (CPS unit) 1 to encrypt AV stream data file 261 and 262 as the True Data of the content that in these two montages 241 and 242, comprises.
Reproduce content in order to use 311 the recreation 1 that is designated as application references or 313 WWW 1, need the user to obtain the encryption key Ku1 that the content management units (CPS unit) 1 for 415 is provided with, enter the state of the deciphering that wherein enables to reproduce content thus.
416 content management units (CPS unit) 2 comprises montage 243.By using the encryption key Ku2 that is provided with for 416 content management units (CPS unit) 2 to encrypt AV stream data file 263 as the True Data of the content that in this montage 243, comprises.
In order to use 312 the recreation 2 that is designated as application references to reproduce content, need the user to obtain the encryption key Ku2 that the content management units (CPS unit) 2 for 412 is provided with, enter the state of the deciphering that enables to reproduce content thus.
It should be noted that, as mentioned above, playback program 321-323 also comprises program, described program reads various data files from the server of carrier or networking---such as based on the image file 331 of JPEG, PNG and BMP, based on audio file 332 and the compressed audio of PCM---and the various data files 333 such as text and database, and carry out and handle, export the result by display monitor or loudspeaker thus.Also comprise these data files that will read in the content management units 412 (CPS unit) 2, i.e. image file 331, audio file 332 and data file 333.Described data file also is set to the ciphered data by unit key Ku2.
In using said method for the needed restriction rule of each layer general be used for being provided with reference to the aforesaid unit of Fig. 4 based on title those are identical, that is, general with under the situation of replacing title by application references those of described restriction rule are identical.More specifically,
(1) cannot be reproduced in the AV stream that comprises in the affiliated content management units (CPS unit) of application references.Only comprise the reproduction order of the AV stream that the content management units (CPS unit) that is used under that application references comprises by the playback program (object) of selecting application references to carry out.
(2) each reproducing part specification file (playlist) can be quoted a plurality of different montages; But the montage that can be cited is those that comprise in a content management units (CPS unit).
Above-mentioned restriction rule is set does not cause that at the reproduction period of the corresponding data of the application references that belongs to a content management units (CPS unit) unit key changes.Therefore, make that seamless link is easier for being reproduced in the AV stream in the application references.
The image scale topic is such, and application references is obvious for the user, therefore such advantage is arranged: when carrying out key distribution and Content Management when content-based administrative unit (CPS unit), easy for the explanation of user and Content Management.
As above described with reference to Fig. 4, this example also has comprehensive playback control program, is used for overall control content reproduction processes.This comprehensive playback control program is carried out overall control for content playback.More specifically, this program detects the generation of the conversion between content management units (CPS unit).As shown in Figure 6, the configuration that wherein is provided with the application references of content-based administrative unit (CPS unit) has content management units (CPS unit) and the unit key information management table as shown in Figure 7 " configuration of cells and unit key admin table " corresponding to each application references, and manages according to this admin table.
Detecting when causing taking place content management units (CPS unit) conversion owing to application references conversion, described comprehensive playback control program carries out conversion to the key that will use by content management units (CPS unit) conversion.Mode as an alternative, described comprehensive playback control program is carried out for example message display process, is used to show be used to the message of asking key to obtain.
If the key K u2 of 415 content management units (CPS unit) 1 key K u1 and 416 content management units (CPS unit) 2 has been stored in the storer of the transcriber of carrying out the content playback processing thereon, then described comprehensive playback control program---is used for detecting overall control content reproduction processes when causing taking place content management units (CPS unit) conversion owing to application references conversion---by content management units (CPS unit) conversion and changes between the key that will use, for example from Ku1 to Ku2.
The key K u1 of the content management units iff 415 (CPS unit) 1 has been stored in the storer of carrying out the transcriber that content playback handles thereon and the key K u2 of 416 content management units (CPS unit) 2 also is not stored, then described comprehensive playback control program---is used for detecting overall control content reproduction processes when being transformed into the generation of 416 content management units (CPS unit) 2 by application references---to be carried out and handles, be used to the message of asking key to obtain such as demonstration.
(c) unit based on playback program (movie objects) is provided with configuration
Below with reference to Fig. 8 an example is described, wherein, according to playback program (movie objects) and deploy content administrative unit (CPS unit).
In this case, corresponding to for example playback program 211-224 content management units is set.
In Fig. 8, corresponding to playback program 211-223 421 content management units (CPS unit) 1 is set, and 422 content management units (CPS unit) 2 is set corresponding to playback program 224.
421 content management units (CPS unit) 1 comprises montage 241 and montage 242, and uses the encryption key Ku1 that is provided with for 421 content management units (CPS unit) 1 to encrypt AV stream data file 261 and 262 as the real data of the content that comprises in these two montages 241 and 242.
422 content management units (CPS unit) 2 comprises montage 243, and uses the encryption key Ku2 that is provided with for 422 content management units (CPS unit) 2 to encrypt AV stream data file 263 as the real data that comprises in this montage 243.
In order to carry out content playback by one of selection title, the user determines content management units (CPS unit) according to the playback program of wanting actual beginning, and only can decipher and reproduce content when the user has unit key corresponding to the content management units that is determined (CPS unit).
The following describes the needed restriction rule of each layer when using said method.Unlike the above-mentioned unit based on title example is set, it doesn't matter between title and content management units (CPS unit).If the restriction rule below satisfying then can be set up a title so that be reproduced in any AV stream that writes down on the recording medium.
(1) playback program (movie objects) should not comprise any order that is reproduced in any AV stream file not to be covered in the affiliated content management units (CPS unit) of playback program (movie objects).
(2) reproducing part specification file (playlist) can be quoted a plurality of montages; But, only can quote those montages that in a content management units (CPS unit), comprise.
As mentioned above, content management units (CPS unit) may take place during title reproduction changes.If change, then unit key changes generation.Because the generating unit key does not change during carrying out same playback program (movie objects), therefore make during that period, seamlessly to connect AV stream easily.
More specifically, in Fig. 8, playback program (movie objects) 221-223 that comprises in the content management units 421 (CPS unit) 1 can only have the order that is used for being reproduced in the AV stream 261 and 262 that 421 content management units (CPS unit) 1 comprises, and can be not used in the order that is reproduced in the AV stream file 263 that comprises in 422 the different content administrative unit (CPS unit) 2.
The reproducing part specification file (playlist) 231 and 232 that comprises in the content management units 421 (CPS unit) 1 can be quoted a plurality of montages; But, only can quote those montages that in a content management units (CPS unit), comprise.
But each playback program (movie objects) can have the transition order between playback program (movie objects).Shown in the arrow 423 and 424 as shown in FIG. 8, each playback program can have the order that is used for carrying out transition between the playback program (movie objects) that belongs to different content administrative unit (CPS unit).
Equally in this example, a comprehensive playback control program that is used for overall control content reproduction processes is arranged.This comprehensive playback control program is carried out overall control for content playback.More specifically, this program detects the generation of the conversion between content management units (CPS unit).As shown in Figure 8, the configuration that wherein is provided with the playback program (movie objects) of content-based administrative unit (CPS unit) has content management units (CPS unit) and the unit key information management table as shown in Figure 9 " configuration of cells and unit key admin table " corresponding to each playback program (movie objects), and manages according to this admin table.
Detecting when causing taking place content management units (CPS unit) conversion owing to playback program (movie objects) conversion, described comprehensive playback control program carries out conversion to the key that will use by content management units (CPS unit) conversion.Mode as an alternative, described comprehensive playback control program is carried out for example message display process, is used to show be used to the message of asking key to obtain.
If the key K u2 of 421 content management units (CPS unit) 1 key K u1 and 422 content management units (CPS unit) 2 has been stored in the storer of the transcriber of carrying out the content playback processing thereon, then described comprehensive playback control program---is used for detecting overall control content reproduction processes when causing taking place content management units (CPS unit) conversion owing to playback program (movie objects) conversion---by content management units (CPS unit) conversion and changes between the key that will use, for example from Ku1 to Ku2.
The key K u1 of the content management units iff 421 (CPS unit) 1 has been stored in the storer of carrying out the transcriber that content playback handles thereon and the key K u2 of 422 content management units (CPS unit) 2 also is not stored, then described comprehensive playback control program---is used for detecting overall control content reproduction processes when being transformed into the generation of 422 content management units (CPS unit) 2 by playback program (movie objects)---to be carried out and handles, be used to the message of asking key to obtain such as demonstration.
(d) unit based on reproducing part specification file (playlist) is provided with configuration
Below with reference to Figure 10 an example is described, wherein, according to reproducing part specification file (playlist) and deploy content administrative unit (CPS unit).
In this case, corresponding to the playlist of reproducing part specification file (playlist) 231-233 content management units (CPS unit) is set.
In Figure 10, corresponding to reproducing part specification file (playlist) 231 and 232 and 431 content management units (CPS unit) 1 is set, and 432 content management units (CPS unit) 2 is set corresponding to reproducing part specification file (playlist) 233.
431 content management units (CPS unit) 1 comprises montage 241 and montage 242.The encryption key Ku1 that use is provided with for 431 content management units (CPS unit) 1 encrypts the AV stream data file 261 and 262 as the real data of the content that comprises in these two montages 241 and 242.
432 content management units (CPS unit) 2 comprises montage 243.The encryption key Ku2 that use is provided with for 432 content management units (CPS unit) 2 encrypts the AV stream data file 263 as the real data that comprises in this montage 243.
In order to carry out content playback by one of selection title, the user determines content management units (CPS unit) by the reproducing part specification file of selecting according to the playback program of wanting actual beginning (playlist), and only can decipher and reproduce content when the user has unit key corresponding to the content management units that is determined (CPS unit).
The following describes the needed restriction rule of each layer when using said method.It doesn't matter between title and playback program (movie objects) and content management units (CPS unit).If the restriction rule below satisfying then can be set up each title and playback program (movie objects) order, so that be reproduced in any AV stream that writes down on the recording medium.
(1) each reproducing part specification file (playlist) is quoted a plurality of montages; But, only can quote those montages that in a content management units (CPS unit), comprise.
This restriction rule can cause that during title reproduction content management units (CPS unit) changes.If this changes generation, then unit key changes generation.Because the generating unit key does not change during carrying out same reproducing part specification file (playlist), therefore make during that period, seamlessly to connect AV stream easily.
More specifically, in Figure 10, the reproducing part specification file (playlist) 231 and 232 that comprises in the content management units 421 (CPS unit) 1 can be quoted a plurality of montages; But the montage that will quote only is those montages that comprise in a content management units (CPS unit).
In this configuration, each playback program can have the order of reproduction, and specifies any playlist shown in the arrow among Figure 10 433.
Equally in this example, a comprehensive playback control program that is used for overall control content reproduction processes is arranged.This comprehensive playback control program is carried out overall control for content playback.More specifically, this program detects the generation of the conversion between content management units (CPS unit).As shown in Figure 10, the configuration that wherein is provided with the content management units (CPS unit) based on reproducing part specification file (playlist) has content management units (CPS unit) and the unit key information management table as shown in figure 11 " configuration of cells and unit key admin table " corresponding to each reproducing part specification file (playlist), and manages according to this admin table.
Detecting when causing taking place content management units (CPS unit) conversion owing to reproducing part specification file (playlist) conversion, described comprehensive playback control program carries out conversion to the key that will use by content management units (CPS unit) conversion.Mode as an alternative, described comprehensive playback control program is carried out for example message display process, is used to show be used to the message of asking key to obtain.
If the key K u2 of 431 content management units (CPS unit) 1 key K u1 and 432 content management units (CPS unit) 2 has been stored in the storer of the transcriber of carrying out the content playback processing thereon, then described comprehensive playback control program---is used for detecting overall control content reproduction processes when causing taking place content management units (CPS unit) conversion owing to reproducing part specification file (playlist) conversion---by content management units (CPS unit) conversion and changes between the key that will use, for example from Ku1 to Ku2.
The key K u1 of the content management units iff 431 (CPS unit) 1 has been stored in the storer of carrying out the transcriber that content playback handles thereon and the key K u2 of 432 content management units (CPS unit) 2 also is not stored, then described comprehensive playback control program---is used for detecting overall control content reproduction processes when being transformed into the generation of 432 content management units (CPS unit) 2 by reproducing part specification file (playlist)---to be carried out and handles, be used to the message of asking key to obtain such as demonstration.
(e) unit based on the AV stream file is provided with configuration
Below with reference to Figure 12 an example is described, wherein, deploy content administrative unit on the basis of AV stream file (CPS unit).The general expression in AV stream file basis is identical with the montage unit.
In this case, corresponding to montage 241-243 content management units is set.
In Figure 12,441 content management units (CPS unit) the 1st, corresponding to montage 241 and 242 and the administrative unit that is provided with, and 442 content management units (CPS unit) the 2nd, the administrative unit that is provided with corresponding to montage 243.
441 content management units (CPS unit) 1 comprises montage 241 and montage 242.Use is corresponding to 441 content management units (CPS unit) 1 and the encryption key Ku1 that is provided with encrypts the AV stream data file 261 and 262 as the real data of the content that comprises in these two montages 241 and 242.
442 content management units (CPS unit) 2 comprises montage 243.The encryption key Ku2 that use is provided with for 442 content management units (CPS unit) 2 encrypts the AV stream data file 263 as the real data of the content that comprises in this montage 243.
In order to carry out content playback by one of selection title, the user determines content management units (CPS unit) by the reproducing part specification file of selecting according to the playback program of wanting actual beginning (playlist), and only can decipher and reproduce content when the user has unit key corresponding to the content management units that is determined (CPS unit).
In the application of said method, it doesn't matter between title, playback program (mobile object) and reproducing part specification and content management units (CPS unit).This method allows to set up title, playback program (movie objects) order and reproducing part specification file (playlist), so that be reproduced in any AV stream that writes down on the recording medium.Each reproducing part specification file (playlist) can be quoted a plurality of montages, and also can quote the montage that comprises in different content management units (CPS unit).
But, if meaningful administrative unit (CPS unit) changes in reproducing part specification file (playlist), the then reproduction of the seamless link of restriction AV stream because the generating unit key changes.
Equally in this example, a comprehensive playback control program that is used for overall control content reproduction processes is arranged.This comprehensive playback control program is carried out overall control for content playback.More specifically, this program detects the generation of the conversion between content management units (CPS unit).As shown in Figure 12, the configuration that wherein is provided with the content management units (CPS unit) based on montage has content management units (CPS unit) and the unit key information management table as shown in figure 13 " configuration of cells and unit key admin table " corresponding to montage, and manages according to this admin table.
Detecting when causing taking place content management units (CPS unit) conversion owing to montage conversion, described comprehensive playback control program carries out conversion to the key that will use by content management units (CPS unit) conversion.Mode as an alternative, described comprehensive playback control program is carried out for example message display process, is used to show be used to the message of asking key to obtain.
If the key K u2 of 441 content management units (CPS unit) 1 key K u1 and 442 content management units (CPS unit) 2 has been stored in the storer of the transcriber of carrying out the content playback processing thereon, then described comprehensive playback control program---is used for detecting overall control content reproduction processes when causing taking place content management units (CPS unit) conversion owing to montage conversion---by content management units (CPS unit) conversion and changes between the key that will use, for example from Ku1 to Ku2.
The key K u1 of the content management units iff 441 (CPS unit) 1 has been stored in the storer of carrying out the transcriber that content playback handles thereon and the key K u2 of 442 content management units (CPS unit) 2 also is not stored, then described comprehensive playback control program---is used for detecting overall control content reproduction processes when being transformed into the generation of 442 content management units (CPS unit) 2 by montage---to be carried out and handles, be used to the message of asking key to obtain such as demonstration.
(f) wherein application and content are the independently configurations of CPS unit
Wherein use and content is the exemplary configuration of CPS unit independently below with reference to Figure 14 explanation.
As shown in figure 14, above-mentioned upper strata (A ') uses 300 and is configured to the wherein layer of application references file and playback program file coexistence.This configuration is general with as above identical with reference to the described configuration of Fig. 6.
Content management units (CPS unit) is set to use separate unit in the levels of (index+playback program) 300 and lower floor (C) reproducing part specification file (playlist)+(D) montage (content data file) at upper strata (A ').
In Figure 14, dispose by lower floor (C) reproducing part specification file (playlist)+(D) montage (content data file) 451 content management units (CPS unit) 1 and 452 content management units (CPS unit) 2 each.By upper strata (A ') use (index+playback program) 300 dispose 453 content management units (CPS unit) 3 and 454 content management units (CPS unit) 4 each.
451 content management units (CPS unit) 1 comprises playlist 231, playlist 232, montage 241 and montage 242, and by using the encryption key Ku1 that is provided with for 451 content management units (CPS unit) 1 to encrypt AV stream data file 261 and 262 as the True Data of the content that in these two montages 241 and 242, comprises.
452 content management units (CPS unit) 2 comprises playlist 233 and montage 243, and by using the encryption key Ku2 that is provided with for 452 content management units (CPS unit) 2 to encrypt AV flow data 263 as the True Data of the content that in montage 243, comprises.
453 content management units (CPS unit) is the CPS unit that is provided with corresponding to by using the application of application references file that comprises in (index+playback program) 300 and the playback program 321 that is associated with described index and 322 configurations at upper strata (A '), WEB1 and unshowned other index of i.e. 311 the recreation 1,313 of described application references file.
Be set to 453 content management units (CPS unit) by the application of shown described application-specific index file and playback program configuration, and encrypted by using the encryption key Ku3 that is provided with for 453 content management units (CPS unit) 3.
The content management units (CPS unit) 4 of the content management units as 453 (CPS unit) 3,454 also is corresponding to using the application that comprises in (index+playback program) 300 and the CPS unit that is set up at upper strata (A ').
454 content management units (CPS unit) 4 is set to a unit, described unit comprises by 312 recreation 2 as the application references file, 314 WEB 2 and other index 315 and the application of disposing by playback program 323 obtainable various data files from carrier or networked server, described data file promptly for example as the data file that is used to carry out the application references file or uses the application source file of execute file, particularly is based on JPEG, the image file 331 of PNG or BMP, based on the audio file 332 of PCM or compressed audio and the various data files 333 such as text and database file.
By using the encryption key Ku4 that is provided with for 454 content management units (CPS unit) 4 to encrypt 454 content management units (CPS unit) 4.
For example, the application execute file of---it is corresponding to for example using (index+playback program), 311 recreation 1 or 313 WEB 1 as the upper strata of application references (A ')---in order to carry out corresponding to an application, require the user to obtain to be lower than the encryption key Ku3 that 453 content management units (CPS unit) 3 is provided with, carry out described application thus.
And, in order to be reproduced in the content-data that comprises in lower floor (C) reproducing part specification file (playlist)+(D) montage (content data file), require the user to obtain new CPS unit key, because these files are set to another content management units (CPS unit).
For reproduction of AV stream 261, require the user to obtain the encryption key Ku1 that the content management units (CPS unit) 1 for 451 is provided with.
Practical is to arrange a kind of like this configuration, wherein, provide each data file or program file by following manner: only in information recording carrier, store lower floor (C) reproducing part specification file (playlist)+(D) montage (content data file), and only receive upper strata (A ') and use (index+playback program) file, and be not stored in the information recording carrier from the server of networking.
For example, at character under the condition of usage charges of content, practical is provides upper strata (A ') to use (index+playback program) file and the CPS unit key corresponding with it to the user.
On the contrary, practical equally is to arrange a kind of like this configuration, wherein, only in information recording carrier, store upper strata (A ') and use (index+playback program) file, and provide lower floor (C) reproducing part specification file (playlist)+(D) montage (content data file) from content server.
Needed restriction rule is when using said method: before carrying out the application references file that comprises or use execute file in (A ') uses, must obtain corresponding to described application references file or the unit key of using the CPS unit under the execute file to decipher described file, thus with the file extent of being deciphered in storer.
Carry out the needed application resource file of application execute file if use the CPS unit key to encrypt, then also must decipher the application resource file by the CPS unit key.
Then, during carrying out application, can be reproduced in any desired playlist that writes down on the recording medium.Playlist can be quoted a plurality of montages, but the montage that will quote only is those that comprise in a CPS unit.
These restriction rules are set to make can change the CPS unit that is associated with AV stream the term of execution using.If this change takes place, then the generating unit key changes.Because the generating unit key does not change in same playlist, therefore feasible seamless link AV stream during that period easily.
Should be noted that in the example shown in Figure 14 (Ku1 is Ku2) with the key (Ku3, Ku4) difference that are used to encrypt application file to be used to encrypt the key of AV stream; Same practical is is included in and uses identical key to be used for encrypting in the same CPS unit by AV being flowed application file.
As above-mentioned example, there is the comprehensive playback control program that is used for overall control content reproduction processes in this example.This comprehensive playback control program is carried out overall control for content playback.More specifically, this program detects the generation of the conversion between content management units (CPS unit).As shown in figure 14, wherein the configuration that is provided with content management units (CPS unit) by difference upper layer application file and lower floor's data file of comprising content has content management units (CPS unit) and the unit key information management table as shown in figure 15 (configuration of cells and unit key admin table) corresponding to application references file or reproducing part specification file (playlist), manages according to these admin tables thus.
Detecting when causing taking place content management units (CPS unit) conversion owing to application references conversion, described comprehensive playback control program carries out conversion to the key that will use by content management units (CPS unit) conversion.Mode as an alternative, described comprehensive playback control program is carried out for example message display process, is used to show be used to the message of asking key to obtain.
Carry out thereon in the transcriber that content playback handles if be stored corresponding to the key K u3 of 453 content management units (CPS unit) 3 of upper layer application file with corresponding to the key K u1 of 451 content management units (CPS unit) 1 of lower floor's true content, then described comprehensive playback control program---is used for detecting content file and reproduces overall control content reproduction processes when asking---by content management units (CPS unit) conversion and changes between the key that will use during carrying out the upper layer application file, for example from Ku3 to Ku1.
If the key K u3 corresponding to 453 content management units (CPS unit) 3 of upper layer application file has been stored in the transcriber of carrying out content playback thereon, but the key K u1 corresponding to 451 content management units (CPS unit) 1 of lower floor's true content is not stored, then described comprehensive playback control program when reproducing request---be used for detecting content file during carrying out the upper layer application file overall control content reproduction processes---detects the conversion to 451 content management units (CPS unit) 1, and carries out such as being used for the processing that message that the requirement key obtains shows.
(g) be used for handling simultaneously the title that is used for movie contents and such as the layer structure of the application of game content and web content
The following describes and be used for handling simultaneously the title that is used for movie contents and such as the exemplary configuration of the layer structure of the application of game content and web content and each content management units (CPS unit) of being provided with in this layer structure.
Above with reference to Fig. 2 and 3 and illustrated that illustration moves the picture material storage format.Layer structure shown in Fig. 2 has:
(A) index (title);
(B) playback program (movie objects);
(C) reproducing part specification file (playlist); And
(D) montage (content data file).
Layer structure shown in Figure 3 has:
(A ') application (index+playback program);
(C) reproducing part specification file (playlist);
(D) montage (content data file).
Referring to Figure 16, show and be used for handling simultaneously the title that is used for movie contents for example and such as a kind of illustration layer configuration of the application of game content and web content.
Substantially the same by lower floor's configuration that following content is formed with the configuration shown in Fig. 2 and 3:
(D) reproducing part specification file (playlist)
(D) montage (content data file)
Configuration shown in Figure 16 has the upper strata, and described upper strata is
(A ") use 370.(A ") application 370 layers that are set to have following content:
A. application references file 371 and 372 and the combination of playback program 381 and 382, or
B. the application execute file 373 such as game content and web content and 374 and the combination of playback program 383 and 384, or
One of combinations thereof a and b.
Should be noted that use execute file 373 and 374 and application references file 371 can be included in and use the application resource file that uses in carrying out.And, can can be used as the application resource file from the various data files that carrier or network connection service device obtain and be employed, described various data files are such as based on the image file 331 of for example JPEG, PNG and BMP, based on the audio file 332 of PCM and compressed audio and various data files 333 text and the database for example.
A. the configuration of index and playback program is with basic identical with reference to the above-mentioned configuration of Fig. 3; That is, described configuration is provided as a layer, wherein, is equal to the application references file data and the playback program coexistence of title.
B. a specific example of the combination of application executive routine such as game content and web content and playback program is to comprise having the game content of using executive capability and the configuration of the web content such as HTML; Particularly be to make it possible to begin the configuration of playback program by carrying out the program that in game content or web content, comprises such as HTML.
Being used for being configured in the program of using the 370 application execute files that comprise for example is to be provided to be used to quote the lower floor of playlist and montage and be provided to be not used in the various programs of quoting playlist layer and clip layer independently.
Figure 17 shows the example that is provided with of content management units (CPS unit) in the layer configuration shown in Figure 16.
As shown in figure 17, being provided with in the configuration of content management units (the CPS unit) of current configuration, the CPS unit is set, described CPS unit comprises: application references file or application execute file, described application references file is such as using 2 of one or more titles of 371 of comprising in 370 and 372, and described application execute file is such as using execute file 373 and 374.
As the CPS unit 1 of 461 shown in Figure 17, application references file, playback program file, playlist and the AV stream file as the content True Data can be configured in the unit.CPS unit 2 as 462 can be configured to application execute file, playback program file, playlist and the AV stream file as the content True Data in the unit.
As in the CPS unit 3 of 463 shown in Figure 17, application execute file, playback program file and the data file that can obtain from the server of carrier or networking are configured to the unit.
Encrypt each above-mentioned unit with storage by using identical key (the CPS unit key shown in Figure 17: Ku1, Ku2 and Ku3).
In Figure 17, use and each of content management units (CPS unit) 2 of 461 content management units (CPS unit) 1 and 462 disposed in lower floor (C) reproducing part specification file (playlist)+(D) montage (content data file) by upper strata (A ").Dispose 463 content management units (CPS unit) 3 by upper strata (A ") application layer with from the various data files that the server of carrier and networking can obtain, and not by lower floor (C) reproducing part specification file (playlist)+(D) montage (content data file).
461 content management units (CPS unit) 1 comprises the title 2, playback program 381 and 382, playlist 231 and 323 and montage 241 and 242 of 371 title 1 and 372.By using the encryption key Ku1 that is provided with for 461 content management units (CPS unit) 1 to encrypt AV stream data file 261 and 262 as the content True Data that in these two montages 241 and 242, comprises.
462 content management units (CPS unit) 2 comprises application file 373, playback program 383, playlist 233 and the montage 243 of disposing by game content and web content.By using the encryption key Ku2 that is provided with for 452 content management units (CPS unit) 2 to encrypt AV stream data file 263 as the content True Data that in montage 243, comprises.Also can encrypt application file 373 by using encryption key Ku2.
463 content management units (CPS unit) 3 is set to a unit, the various data files that it is included in the application file 374 and 375 that comprises in the upper strata (A "), playback program 383 and can be obtained from carrier and networked server by playback program 383, described various data files are such as based on the image file 331 of JPEG, PNG and BMP, based on the audio file 332 of PCM and compressed audio and the various data files 333 such as text and database.
By using the encryption key Ku3 that is provided with for 463 content management units (CPS unit) 3 to encrypt 463 content management units (CPS unit) 3.
For example, handle, need the user to obtain encryption key Ku1 that the content management units (CPS unit) 1 for 461 is provided with, reproduce content thus to carry out described application for application file or the content playback of carrying out 461 content management units 1.
For example, in order to use corresponding to the application file of 463 content management units 3 or the image file 331 that is associated with playback program 383, based on the audio file 332 of PCM or compressed audio and the various data files 333 such as text and database that are associated with playback program 383, need the user to obtain the encryption key Ku3 that the content management units (CPS unit) 3 for 463 is provided with, carry out thus and use or various file.
Restriction rule in using said method execution processing is: when reproducing specific title, can not be reproduced in any AV stream file not to be covered in the affiliated CPS unit of that title.Should not comprise the CPS unit any AV stream not to be covered that is used for being reproduced under that title in the movie objects of carrying out during the title reproduction.Should be noted that each movie objects can have the order that is used for header conversions, and when when for example the title jump commands causes header conversions, transcriber is determined the change that takes place on reproduced title.Practical is that the reproduction period of the title 2 in Figure 17 is carried out and is used to cause the order that jumps to title 3.In this case, after jump, title 3 is reproduced.
Playlist can be quoted a plurality of montages, but the montage that will quote only is those that comprise in a CPS unit.
These restrictions prevent that the generating unit key changes when reproduction belongs to the title of a CPS unit.This makes and seamlessly connect AV stream easily in each title.
Should be noted that because each title is for the tangible information of user, therefore above-mentioned disposing benefits: carrying out in key distribution and the Content Management based on the CPS unit, can easily carry out the explanation of user and Content Management.
As title reproduction, make and when the term of execution using, quoting playlist, reproduce in the AV stream that belongs to a CPS unit, carry out seamless link easily.Prevent from encryption key (CPS unit key) change takes place the term of execution using by using same encryption key to encrypt the resource file that will during application of execution, use, allow level and smooth encryption thus.
As above-mentioned example, a comprehensive playback control program that is used for overall control content reproduction processes is arranged in current example.This comprehensive playback control program is carried out overall control for content playback.More specifically, this program detects the generation of the conversion between content management units (CPS unit).As shown in figure 18, described configuration has corresponding to content management units of application layer index file or application file (CPS unit) and unit key information management table (configuration of cells and unit key admin table), carries out management according to these admin tables thus.
Detecting when causing taking place content management units (CPS unit) conversion owing to application references conversion, described comprehensive playback control program carries out conversion to the key that will use by content management units (CPS unit) conversion.Mode as an alternative, described comprehensive playback control program is carried out for example message display process, is used to show be used to the message of asking key to obtain.
If the key K u2 of 461 content management units (CPS unit) 1 key K u1 and 462 content management units (CPS unit) 2 has been stored in the transcriber of carrying out the content playback processing thereon, then described comprehensive playback control program---is used for overall control content reproduction processes when detecting applying unit conversion or content conversion---to be changed between the key that will use by content management units (CPS unit) conversion, for example from Ku1 to Ku2.
If the key K u1 of 461 content management units (CPS unit) 1 has been stored in the transcriber of carrying out the content playback processing thereon and the key K u2 of 462 content management units (CPS unit) 2 is not stored, then described comprehensive playback control program---is used for overall control content reproduction processes when detecting applying unit conversion or content conversion---to be carried out and handles, show such as the message that is used to ask key to obtain.
[the content use and management of independence 4. Network Based and connection status]
The following describes a kind of configuration, wherein, when on pen recorder, reproducing content when using by the mount message recording medium, according to whether content is carried out the content use and management at state that is independent of network or network connection state, described transcriber is the device that is connected to such as the network of home network, described information recording carrier comprises by the content of using conduct to encrypt based on the unit key of the encryption key of unit, and described content is divided into above-mentioned content management units.
As shown in Figure 19 (A), each content management units that writes down on recording medium (CPS unit) is in one of two states: be independent of the state (network detach state) of network and be associated with the state (or network bound state) of network.
If write down two or more contents (content management units) on recording medium, then management wherein keeps the state of each content management units (CPS unit).Be recorded to information recording carrier, the player (information reproduction apparatus) of information recording carrier has been installed or carries out the management server on the family expenses network that information management is handled about the separation of each content management units (CPS unit) or the management information of binding state.
Correspond respectively to content management units (CPS unit) in the content shown in Figure 19 1 to content 6.
The following describes content reproducing method.
Can or can in being independent of the state of network (released state), not reproduce and be stored in each content in the information recording carrier, that be divided into content management units (CPS unit).
The content 1 shown in Figure 19 can be in being independent of the state of network (released state), reproduced to content 4, and content 5 and content 6 can not be in being independent of the state of network (released state), reproduced.
Each content (content management units) that writes down on recording medium can enter and network associated state (binding state) by the processing of user's operation or transcriber.Should be noted that also to have the content that is prohibited from entering with network associated state (binding state), as the content 1 in (a) of Figure 19.
These information are confirmed as being stored in the attribute of each content (content management units) in the information recording carrier, and are stored as the attribute information corresponding to each content management units in information recording carrier.
The processing form that wherein can carry out each content (content management units) is scheduled:
(1) in being independent of the state of network (released state), can carry out; Or
(2) with network associated state (binding state) in can carry out.
Be used to indicate the information which of these processing form can carry out each content with to be recorded in information recording carrier or preserve the attribute information that is used as on the management server of management information corresponding to each content (content management units).
For example, there are a plurality of contents (content management units) shown in (a)-(f) of Figure 19.
(a) content 1 is can reproduce and be under an embargo to move to content (content management units) with network associated state (binding state) in being independent of the state of network (released state).
(b) content 2 be in being independent of the state of network (released state), can reproduce and with network associated state (binding state) in use network be connected stream reproduce in reproducible content (content management units).Stream reproduces the following content playback of expression to be handled, wherein, and via the numerical data that Network Transmission is recorded to the data of recording medium or the data that write down on recording medium by conversion obtain, and decoding and show the data of being transmitted on the receiver device.
(c) content 3 be in being independent of the state of network (disperse state) reproducible content with network associated state (binding state) in use network be connected can long-range reproduction content (content management units).Following content playback processing is represented in long-range reproduction, wherein, sending device is carried out and is handled, and is included in the response of finding in the DVD video interactive content for user's operation, only sends video that will show and the audio frequency that will reproduce with displayable data layout on the receiver device on screen.Long-range reproduction requires the receiver device to receive user operation commands, and sends it to the transmission transcriber via network.
(d) content 4 is reproducible contents and realize the content (content management units) of content playback in being independent of the state of network (released state), and described content playback is used to be reproduced in the content that writes down on the recording medium and via the data of network download.
The data of the latest edition of wanting data downloaded can for example be included in captions, voice data and the menu data of the language of not storing on the recording medium and in content playback, using.Content 4 is examples of content, wherein, with network associated state (binding state) in data download reproduce reproducible content in the state (released state) that also is being independent of network.
(e) content 5 be with network associated state (binding state) in can not reproduce and only with network associated state (binding state) in reproducible content (content management units).
When obtaining, make it possible to reproduce via the needed key of the reproduction of network, promptly corresponding to the unit key of the content management units that is defined as content 5.Enable to dispose in this reproduction under the condition that unit key is obtained and make and to distribute and sells the content that to reproduce in the state (released state) that is being independent of network, thus the service of the realization form of wherein selling key information by charging when the content playback.
(f) content 6 be in being independent of the state of network (released state), can not reproduce and only with network associated state (binding state) in reproducible content (content management units) and realize the content (content management units) of content playback, in described content realizes, be reproduced in the content that writes down on the recording medium and data downloaded via network.
Should be noted that use (d) content 4 to (f) content 6, carry out network and connect to obtain the processing of data download or unit key; About the prerequisite that this data and unit key are obtained, carry out checking and handle confirming carrying out request of data by the device or the user that authorize, and if be proved to be successful, then provide data download and unit key from server.Should be noted that also described data via the network transmission are encrypted before being provided to user's device.The following describes these and handle operation.
[the 5. management of the content replication on network]
The following describes a kind of configuration, wherein, when reproducing content by mount message recording medium on transcriber for use, according to whether content is carried out the content replication management at state that is independent of network or network connection state, described transcriber is the device that is connected to the network such as home network, described information recording carrier comprises by the content of using conduct to encrypt based on the unit key of the encryption key of unit, and described content is divided into above-mentioned content management units.
As shown in Figure 20 (A), each content management units that writes down on recording medium (CPS unit) is in one of two states: be independent of the state (network detach state) of network and be associated with the state (or network bound state) of network.
If write down two or more contents (content management units) on recording medium, then management wherein keeps the state of each content management units (CPS unit).Management information about the separation of each content management units (CPS unit) or binding state is recorded to information recording carrier, the player (information reproduction apparatus) or the management server on the family expenses network of information recording carrier has been installed.
Correspond respectively to content management units (CPS unit) in the content shown in Figure 20 1 to content 6.Each content (content management units) that writes down on recording medium can enter and network associated state (binding state) by the processing of user's operation or transcriber.Should be noted that also to have the content that is prohibited from entering with network associated state (binding state), as the content 1 in (a) of Figure 20.
These information are confirmed as being stored in the attribute of each content (content management units) in the information recording carrier, and are stored as the attribute information corresponding to each content management units in the management server of information recording carrier or preservation management information.
The processing form that wherein can carry out each content (content management units) is scheduled:
(1) in being independent of the state of network (released state), can carry out; Or
(2) with network associated state (binding state) in can carry out.
Be used to indicate the information which of these processing form can carry out each content with to be recorded in information recording carrier or preserve the attribute information that is used as on the management server of management information corresponding to each content (content management units).
For example, there are a plurality of contents (content management units) shown in (a)-(f) of Figure 20.
(a) content 1 is can reproduce and be under an embargo to move to content (content management units) with network associated state (binding state) in being independent of the state of network (released state).
(b) content 2 be in being independent of the state of network (released state) reproducible content and with network associated state (binding state) in can reproduce, but not reproducible content.
(c) content 3 be independent of the state of network (disperse state) and with network associated state (binding state) in can be reproduced.And, content 3 be can be only with network associated state (binding state) in be copied to the content (content management units) of recording medium of the copy source of same type.
Duplicating the destination can be:
Recording medium with the copy source same type;
Different recording medium (in network); And
Portable device.
(d) content 4 be in being independent of the state of network (released state), can reproduce and also with network associated state (binding state) in reproducible content.And, content 4 be only be enabled with network associated state (binding state) in copy to content (content management units) with the dissimilar recording medium of copy source.
Under the situation of content 4, enabled to copy to dissimilar recording medium, and required copy source or destination to carry out the copy data that data-switching is changed with record where necessary.
(e) content 5 in being independent of the state of network (released state), can not reproduce and also with network associated state (binding state) in can reproduce.And, content 5 be only be enabled with network associated state (binding state) in copy to the content of portable device.Can take out portable device from home network; Therefore, replication management must be considered this portability.
If use and duplicate the restriction that is associated, the processing that then must appointment will carry out, described restriction such as duplication count, duplicate expiry date and do not exist from the original record medium of network associated state (binding state).Expectation is specified these information respectively for above-mentioned three kinds of replication form.Should be noted that the processing that will carry out can for example be that copy data is disabled, copy data is disabled or deletes copy data behind special time when original record medium is left with network associated state (binding state).When recording medium be placed in once more with network associated state (binding state) in the time, can be not not deleted data of use with changing.Therefore, if for example recording medium is lent friend, then copy data only becomes at short notice and can not become when returning and can obtain for the owner holds.
(f) content 6 be the content that in being independent of the state of network (released state), can not reproduce and only with network associated state (binding state) in reproducible content (content management units).And, suppose and on the family expenses network, duplicate the data that will duplicate that content 6 is content (content management units), and the data storage that will duplicate in advance is on recording medium.
This data that will duplicate can have is duplicating form not reproducible on the edge device or is having wherein as these data as a result that copy to another device reproducible configuration that becomes.For example, the data that will duplicate of identical content can be stored in the recording medium that is used to store with reference to the data of Fig. 2 and 3 described multilevel schemes in advance, described form is reproducible data layout (for example the file layout or the MPEG-PS form such as AVI that can be reproduced by personal computer) on general networking device for example, and so the data that will duplicate of storage are sent out to duplicate, with reproduced by these devices via network.
Should be noted that before reproducting content, preferably carry out checking or obtain via the key of network.And, carry out the system of clearing when duplicating for wherein each reproducting content or request key, preferably carry out Content Management and handle so that the number of times by distributed key limit can reproducting content number of times.
The management information of each content management units [6. corresponding to]
The following describes management information corresponding to the content management units that is recorded to carrier, described carrier has the content of storage by using conduct to encrypt based on the unit key of the encryption key of unit, and described content is divided into content management units as mentioned above.
As mentioned above, dispose each content management units (CPS unit) corresponding to following any one:
Title;
Application references;
Playback program;
Playlist; And
Montage.
For each content management units (CPS unit) unit key is set.
Content management units (CPS unit) configuration and key management table with reference to Fig. 5,7,9,11 and 13 and by above-mentioned be unit key information management table " configuration of cells and unit key admin table ".
And, as mentioned above, exist and each content management units (CPS unit) associated state information, be used for indicating each content management units (CPS unit) to be in which state:
A. be independent of the state (released state) of network
B. with network associated state (binding state).
Should be noted that use can not write the carrier of data, only in original state, write above-mentioned status information.
Carrier for the data that are enabled write writes down two kinds of information, i.e. original state and current state.Write current state information by carrying out to recording medium as the signal conditioning package of the transcriber that has been mounted information recording carrier or by the management server of networking.
Referring to Figure 21, show the exemplary configuration of " condition management table " under the situation that init state and current state is recorded the information recording carrier that the data that are enabled write.In this table, be independent of the state (released state) of network and (b) and write original state and current state in one of the network associated state (binding state) corresponding to each content management units (CPS unit) at (a).
Should be noted that the condition management table shown in Figure 21 be recorded to carrier and as be mounted information recording carrier transcriber signal conditioning package or such as the networking management server external device (ED).
Under the situation of the recording medium that the data that are under an embargo write, only write original state, and be mounted to conduct information recording carrier transcriber signal conditioning package or such as the networking management server external device (ED) write the condition management table that has been recorded original state and current state.
For the original state that will be set to condition management table, one of one of four states below using:
A. only separate;
B. initially-separate;
C. only binding; And
D. initially binding
" a. only separates " expression content (content management units) only is allowed to be independent of the state of network (disperse state), and does not allow to transfer to and network associated state (binding state).
" b. initially-separate " expression content (content management units) is initially in the state (disperse state) that is independent of network, and allows to transfer to and network associated state (binding state).
" c. only binds " expression content (content management units) only be allowed to network associated state (binding state), allow to transfer to the state (disperse state) that is independent of network now.
" d. initially binds " expression content (content management units) is initially at and network associated state (binding state), and allows to transfer to the state (disperse state) that is independent of network.
Described initial and network associated state (binding state) supposition wherein in advance with the information of on network, finding distributing contents explicitly.For example, this content comprises be assumed to be the content of reproducing with the information of finding on network.
For current state, be provided with the state (disperse state) be independent of network and with one of network associated state (binding state).
Can current state be set for each content management units.For the form of content use and management, the two states management method is possible.In first method, before placing recording medium outside the home network, the state of each recording medium always returns original state.
For example, can be used for content stores recording medium from the removable media that transcriber unloads if use, then when transcriber unloads removable medium, the state of each content returns original state.In this case, also initialization is stored in the condition management table of recording medium outside.
In the second approach, the state of each recording medium of registration in external management server for example.In this case, only when unloading removable medium, needn't initialization at the condition management table of recording medium exterior storage.
Trial will be on the transcriber of family expenses network (A), be placed in the removable medium mount that is used for memory contents of network associated state (binding state) to the transcriber that is connected to the home network of setting up for another family (B), and with this removable medium place with network associated state (binding state) make management server according to condition management table detect content at family expenses network (A) with network associated state (binding state) to enter family expenses network (B) also redundant with network associated state (binding state), prevent thus with content be set on family expenses network (B) with network associated state (binding state).
Above-mentioned management prevents the parallel same content of using a plurality ofly.
Should be noted that can configuration management server to wait to have the condition management table shown in Figure 21, allow thus after unloading removable medium, to quote current state, to carry out the use and management of content according to the state of being quoted from transcriber.
Also should be noted that, if information recording carrier is the recordable media of record current state, then practical is directly to read current state from described recording medium, and not via server whether check described recording medium with network associated state (binding state), because current state is recorded to described recording medium, carry out the use and management content according to the information that is read thus.
Also should be noted that, under the situation of the ROM medium that do not allow to repeat to write common data area, write therein in the configuration such as above-mentioned condition managing information, be preferably in and form the writeable zone of part on the ROM medium, and use these ROM medium with this configuration.
Mode preferably, provides a kind of configuration as an alternative, wherein, uses rewritable disk medium or comprises the boxlike medium of IC storer.
Should be noted that once more, can be configured to and show information table that " configuration of cells and unit key admin table " combine or admin table independently at the condition management table shown in Figure 21, described table " configuration of cells and unit key admin table " is used to manage in configuration of the content management units (CPS unit) shown in Fig. 5,7,9,11 and 13 and unit key.
Also comprise when the content playback of content when being independent of the state of network (disperse state) and use restricted information and corresponding to the management information of content management units when the content playback of content the time and use restricted information with network associated state (binding state).
These contents management information are written on the information recording carrier as the attribute information corresponding to content or are recorded in the management server of carrying out the Content Management processing.Should be noted that for the content that is allowed to only to be used for network associated state (binding state), can only obtain content use and management configuration according to the contents management information that in management server, writes down.
The illustration data of contents management information are described below with reference to Figure 22.Figure 22 shows a kind of exemplary configuration of content use and management information, wherein, with the instruction content state, promptly content is being independent of the state of network (disperse state) or is coming recorded content management information with the fixed-length data of network associated state (binding state).
Consider the content use in the family expenses network, the setting of the contents management information of the regular length shown in Figure 22 is preferred.For the management information of the state that for example is independent of network (disperse state), write and whether enable or forbid reproduction in being independent of the state of network (disperse state).For the content that in being independent of the state of network (disperse state), can not reproduce, write the method for reproducing content.For example, this method has been specified the connection of key distribution server and the obtaining of the key data distributed by another medium (for example storage card), and for example URL or telephone number are provided, are used to specify the index value that server or sensing are used to store the tabulation of these information.
For example comprise whether allowing duplicating in network with the management information of network associated state (binding state), the processing of availability, the data-switching scheme of flow operation and long-range reproduction, duplication count, expiry date, replication stream data and the copy data that when content breaks away from network associated state (binding state), will carry out.
It should be noted that, because Figure 22 suppose these information part or all be stored in the field of regular length, therefore independently storing the data that the many characters such as URL or Data Position (routing information) are formed in the file, and in each fixed-length field, storing index for the tabulation of in described unique file, storing.
For the control information operation that obtains from server when reproducing does not use the reproduction control information that writes down in recording medium therefore to operate, a kind of configuration can be provided, wherein, the information stores of sign that indication can be obtained from data in server and indication server access method is for shown in the contents management information configuration data 501 as shown in Figure 22.
With above-mentioned information setting is that contents management information for example allows to change control method after selling the complexity control that can not express with fixed-length data and recording medium.
Should be noted that at the content use and management information table shown in Figure 22 and can be configured to the content management units shown in Fig. 5,7,9,11 and 13 (CPS unit), the information table that combines with the unit key admin table or admin table independently.Perhaps, described content use and management information table can combine with the condition management table shown in Figure 21, maybe can be independently to show.
Referring to Figure 23, show with variable length data and write down exemplary configuration according to the content use and management information table of the contents management information of content status.
The content of the information that is provided with is identical with shown in Figure 22 those.Because can import variable length descriptor, therefore the data that comprise the many characters such as URL and Data Position (routing information) directly can be written as contents management information.In addition, because defined loop structure and type (CCI_and_other_info_type in described accompanying drawing (CCI and other information types)) for every kind of contents management information, can easily handle by the information that defines described type and accompany with it (CCI_and_other_info_value in described accompanying drawing (CCI and other values of information) and Additional_info (additional information)) subsequently increases new duplicating control method.In this case, any device of selling in the past can not carried out the processing for UNKNOWN TYPE.
It should be noted that, the any of two kinds of structures can be set, wherein, as shown in Figure 23 (A), with the state that is independent of network (disperse state) with do not separate with network associated state (binding state) associated content management information, and provide contents management information circulation for this two states as shown in Figure 23 (B).
This information table can be stored as the file identical with above-mentioned another kind of admin table or be stored as different files.
For the control information operation that obtains from server when reproducing does not use the reproduction control information that writes down in recording medium therefore to operate, a kind of configuration can be provided, wherein, storage shown in can contents management information configuration data 502 as shown in Figure 23 is used to indicate sign that obtains from data in server and the information that is used to indicate the server access method.
With above-mentioned information setting is that contents management information for example allows to change control method after selling the complexity control expressed with fixed-length data and recording medium.
And, wherein be provided as the contents management information configuration data 503 shown in Figure 23 user definition information and to this user definition information setting for example the configuration of the type of user's definable control information allow content playback control corresponding to each isolated user; For example, this configuration comes only to allow reproduction processes for the member user by difference membership number and non-member user, perhaps, be independent of recording medium standard for example and the definition of copy control information (CCI information) is set, realize exceeding the control method of scope of standard of recording medium and the control method that each content distributor can arbitrarily define thus.
Use comprises an example based on the example of user-defined copy control information (CCI information), wherein, the definition of the copy control information (CCI information) of unit record medium is set.
For for example parameter (for example dvd standard) of each specific register system standardization copy control information (CCI information), therefore be difficult to after popularizing the transcriber that meets these parameters, expand copy control information (CCI information).
Therefore, expectation control information not to be covered is set to user definition information in the copy control information of being determined by each register system (CCI information), and each content owner or supvr are provided with unique copy control information (CCI information).
Because can not be only carry out the decipher of the copy control information (CCI information) that is provided with uniquely by each content owner or supvr by standard compliant transcriber, the application (for example java applet) that therefore is used for decipher copy control information (CCI information) is stored on the recording medium or from server or other external devices downloads.Therefore, make can the uniquely defined copy control information of decipher (CCI information) and operate control according to the CCI information on each transcriber in the execution of the application that is obtained.
Catalogue configuration and management information that the management information of the content management units (CPS unit) that is used to store corresponding to the above-mentioned type is described below with reference to Figure 24 are stored the example that is provided with.The BDMV catalogue is to be used for the catalogue of storing application file with Blu-ray disc ROM form.
In Figure 24, content-data part 511 comprises data file, such as the content data file of reference Fig. 2 and 3 aforesaid multi-layer configuration, i.e. title, montage, application references, playback program, playlist and montage.These data files are stored in the user data area of each information recording carrier.Should be noted that the AV stream that comprises is to use the unit key that is provided with for each content management units (CPS unit) and the ciphered data file in each montage.
Managing data selection 512 comprises as above with reference to Fig. 5,7,9,11 and 13 described content management units (CPS unit) and unit key admin table, described unit key admin table promptly " configuration of cells and key management table ", with reference to Figure 21 above-mentioned being used for manage each content management units the state that is independent of network (disperse state) and with " condition management table " of network associated state (binding state), with reference to Figure 23 described be used to store about each content at these states use and duplicate " the content use and management information table " of the information of control.
Store these admin tables with one of following several forms.
(A) in the user data area of recording medium, admin table is stored as private file.
(B) admin table is inserted in the AV formatted file of storing in the user data area of recording medium.For example, by these admin tables being inserted titles, index data file and storing them such as the AV formatted file of playlist.
(C) at the physical region of each recording medium, be storage administration table in the zone that can not visit of user.
(D) storage administration table in the server externally.
Should be noted that and can manage each that show below independently or can manage the two or more of these tables together:
" configuration of cells and key management table ";
" condition management table ";
" content use and management information table ".
In example as implied above (B), three above-mentioned tables are stored in the application file of storing in the user data area of each recording medium.Only can on each recording medium, there be one of these tables, so memory location or subject index list file (index.bdmv in described accompanying drawing) or playback program (movie objects) file (MovieObject.bdmv in described accompanying drawing).
In example as implied above (C), three above-mentioned information are stored in the physical region (user can not directly visit) on each recording medium.In example as implied above (D), described three information are not to be stored on the recording medium, but for example are stored on the external server.In this case, transcriber must be always from the information of external server acquisition corresponding to described three tables before beginning to reproduce recording medium.
[the 7. exemplary configuration of information recording carrier transcriber]
The exemplary configuration of the signal conditioning package that is used to be reproduced in the content of storing on the above-mentioned information recording carrier is described below with reference to Figure 25.
At first, with the configuration of declare record and transcriber 600.Component block is connected to bus 601.In the reproduction of the AV that is made up of MPEG-TS data stream, the data decryption that comes where necessary to read from the information recording carrier driver 690 691 by encryption parts 650 is to be separated into for example video, audio frequency and alphabet data by TS (transport stream)/PS (program flow) processing element 620.
Numerical data by mpeg codec 630 decodings is converted to the simulating signal that will export by the digital to analog converter 641 at input and output interface 640.In numeral output, the MPEG-TS data of encrypted processing element 650 deciphering are outputted as numerical data by input and output interface 610.Output in this case is directed into the digital interface such as IEEE 1394, Ethernet cable or WLAN (wireless local area network).Should be noted that then input and output interface 610 has the network concatenation ability if the network concatenation ability is provided.And, if transcriber is carried out the data-switching to the receivable form of each output destination device, and output institute data converted, then mpeg codec 630 is carried out rate transition and coding and decoding conversion for the video, audio frequency and the caption data that are obtained by TS/PS processing element 620, described TS/PS processing element 620 is multiplexing with handled data and MPEG-TS or MPEG-PS once more, exports resultant data by input and output interface 610.Perhaps, practical is, by using CPU 670 described data is converted to coding and decoding and multiplexing file except MPEG, and exports resultant data by input and output interface 610.
If above-mentioned admin table, promptly
" configuration of cells and key management table ";
" condition management table ";
" content use and management information table " is stored in the information recording carrier 691, and then these tables are read and are stored in the storer 680.Can obtain to reproduce the key information of needed each content management units (CPS unit) from the data of storage storer 680.Should be noted that if described admin table and unit key are not stored in the information recording carrier, then can obtain them by the server from networking by predetermined rules.The following describes this rules.
As mentioned above, each content management units (CPS unit) is configured to be associated with following any one:
Title;
Application references;
Playback program;
Playlist; And
Montage.
For a content management units (CPS unit), a unit key is associated.The comprehensive playback control program that is used for totally carrying out the control of content playback detects the generation of content management units (CPS unit) conversion, and according to the content management units that is detected (CPS unit) conversion and between the key that will use, change.If do not obtain any key, then this program is carried out and is used to present the processing that is used for the message obtained to the user prompt key.
If the following describes that but information recording carrier 691 has the data recording configuration then the operation that when data recording, will carry out.Digital signal input and simulating signal input are assumed to the data that will write down.
Under the situation of digital signal, described digital signal is transfused to by digital signal input and output interface 610, and encrypted processing element 650 is suitably encrypted to be stored in the information recording carrier 691.If the data layout of the digital signal of being imported is converted and stores, then mpeg codec 630, CPU 670 and TS/PS processing element 620 are the storage data layout with described Data Format Transform.Then, encryption parts 659 are carried out suitable encryption for the storage data layout that will be stored in the information recording carrier 691.
Under the situation of simulating signal, the simulating signal of importing at input and output interface 640 is converted to digital signal by digital to analog converter 641, and described digital signal is converted to the coding and decoding signal to use by mpeg codec 630 then when writing down.Then, described coding and decoding signal is converted to as the formative AV multiplex data of record data by TS/PS processing element 620.The AV multiplex data as required and encrypted processing element 650 is suitably encrypted to be stored in the information recording carrier 691.Above-mentioned admin table, promptly
" configuration of cells and key management table ";
" condition management table ";
" content use and management information table "
Also be established or upgrade constantly to be stored in the information recording carrier 691.
If record and transcriber obtain necessary information via external network, then store the data that obtained in the storer 680 in record and transcriber.The data of being stored for example comprise the needed key information of content playback, will with the reproduced captions of content playback and audio-frequency information, such as rest image data, contents management information and corresponding to the working rule (service regeulations) of the transcriber of contents management information.
Should be noted that the program that is used for carrying out reproduction processes and recording processing is stored in ROM 660, and storer 680 is used as the storage area and the perform region during these programs of execution of parameter and data as required.With reference to Figure 25, the above-mentioned cell configuration that allows data recording and reproduction; Same practical is, that configuration also can be used is of the present invention, only have the device of reproduction or registering capacity.
[8. illustration network configuration]
Below with reference to Figure 26 a kind of exemplary configuration is described, wherein, is used for being connected to the network such as home network by the signal conditioning package that above-mentioned information recording carrier reproduces content (record and transcriber) is installed.
Record and transcriber 711 are connected to home network 710 via digital interface.Described digital interface is based on for example IEEE 1394, Ethernet or WLAN (wireless local area network).Content is at home used the form below for example comprising.
The content that to reproduce from the information recording carrier in record and transcriber 711 installations sends to home server 712, and described home server 712 has recording-member, such as hard disk, is stored as reproducting content therein with the content that will be reproduced.
Send the content of being reproduced from information recording carrier to such content playback device 714 in record and transcriber 711 installations, described content playback device 714 has output block, display monitor such as TV or PC, perhaps, the reproducting content of home server 712 is sent out to flow reproduction.
Have remote control capability such as the content playback device 713 operated from a distance records of PC and transcriber 711 or home server 712 to send and output comes in the reproduction of the information recording carrier of installation on comfortable record and the transcriber 711 the perhaps reproducting content of home server 712.
Send and output comes in the reproduction of the information recording carrier of installation on comfortable record and the transcriber 711 the perhaps reproducting content of home server 712 to portable device 715.
Be recorded with transcriber 711 from the data of the device of each networking output and record recording medium.
And, if must obtain the needed information of content playbacks via the outer network of for example family from home server 720, then write down and transcriber 711 is connected to home server 720 to obtain the information of necessity at record and transcriber 711.
Can carry out these and handle operation.
[9. processing execution sequence]
Be used for being reproduced in the sequence of the content that above-mentioned information recording carrier stores and the sequence of other processing below with reference to process flow diagram explanation, described information recording carrier is used for storage and uses the content of encrypting for the unique unit key of each content management units (CPS unit).
(1) content playback is handled
At first, be used for from the sequence of information recording carrier reproduction content with reference to the process flow diagram explanation shown in Figure 27, described information recording carrier is used for the content that storage is encrypted on content management units (CPS unit) basis.
Carry out the processing shown in Figure 27 by comprehensive playback control program, described comprehensive playback control program is used for the reproduction of content that the signal conditioning package of information recording carrier (transcriber) storage has been installed in overall control thereon.
At step S301, described signal conditioning package from information recording carrier from the content of storage, promptly select the content that will reproduce from content management units (CPS unit).Carry out this processing according to user's input of for example input block by being connected to signal conditioning package or from the input of the information of the given content of networking device.More specifically, according to as above beginning playback program with reference to the user's specified title in the layer configuration of Fig. 2 and 3 described contents or the specification information of application references.Under described reproduction, select any one of playlist, and select a montage to begin reproduction according to selected playlist.
In step S302, identification comprises the content management units (CPS unit) of the content that will reproduce.As mentioned above, each content management units (CPS unit) is associated with following any one:
Title;
Application references;
Playback program;
Playlist; And
Montage.
According to above-mentioned setting any one, be used for the content management units that comprehensive playback control program identification that overall control content reproduces will be reproduced.
At step S303, determine whether that transcriber itself has the needed information of reproduction of the content management units that will reproduce, i.e. unit key.That is, check unit key for the storer of transcriber, it is the key corresponding to the content management units of the content that is selected as reproducing.If the discovery unit key is then come decryption content at step S306 by the unit key that use is used for reproduction processes, promptly the AV in content management units flows.Should be noted that " reproducing needed information " not only comprises the unit key that is used for contents decryption, and be included in data download that content uses in reproducing sometimes and about the transcriber working rule (service regeulations) of contents management information.Signal conditioning package checks that as required the preservation of these information is to reproduce.
If do not preserve unit key and other necessary information, then at step S304, obtain necessary information from the outside, such as unit key, the data download of in content playback, using with about the transcriber working rule (service regeulations) of contents management information.For example, obtain unit key and other necessary information by following from for example predetermined rules of the server of networking.Below this processing will be described.
If in the success of obtaining of step S305 discovery information (unit key), then unit key is come decryption content, promptly the AV in content management units flows to carry out reproduction processes by using at step S306.If obtaining of discovery information (unit key) is unsuccessful, then do not carry out content playback and end process.
Below with reference to Figure 28 the sequence that content replication is handled is described.The content management units that this processing will be read from the information recording carrier transcriber stores in the information recording carrier such as server that is connected to network (for example home network), described transcriber has been mounted information recording carrier, is used to be stored in the content of encrypting on the content management units basis.Installed thereon and carried out the processing shown in Figure 28 in the signal conditioning package (transcriber) of information recording carrier.
At step S311, the content of signal conditioning package from be stored in information recording carrier, be the content that content management units selects to carry out replication processes.Carry out this processing according to user's input of for example input block by being connected to signal conditioning package or according to input from the content specification information of networking device.
At step S312, the content management units that selection will be duplicated (CPS unit).
For each content management units to any one above-mentioned setting, replication capacity is set to reference to Figure 22 described " content use and management information table "; If allow to duplicate, then can specify to allow the number of times that duplicates.
At step S313, determine whether to duplicate the content of appointment, at step S314, determine whether that according to " content use and management information table " duplication count is in the restriction counting.It should be noted that, " reproducible " determined hereto, not only use " content use and management information table " on recording medium to check replication capacity, if for example preserving " content use and management information table " in the external server, then obtain replication capacity information from external server via network.Practical equally is to buy reproduction right to obtain the content replication permission from server.
The interior content that has perhaps reached the copy permission count restrictions of duplicating for not being enabled is not carried out replication processes and end process.The content of duplicating for being enabled and also do not reach the content of copy permission count restrictions, rules proceed to step S315, to check about duplicating the information of destination device compatibility.Duplicating the destination device represents for example via the device such as home server that for example is connected to this signal conditioning package.In checking compatibility,, determine whether that then described server can handle the MPEG-TS data if for example directly duplicate as the MPEG-TS data that are stored in the content in the information recording carrier by the device such as home server.
At step S316, if find that the content that is stored in the information recording carrier is reproducible, then rules proceed to step S319 to carry out replication processes.
If find that at step S316 the content be stored in the information recording carrier is not reproducible, then rules proceed to step S317 and have stored except original contents other and wanted reproducting content to determine whether described information recording carrier.If found the other guide that will duplicate, then read the data that to duplicate from information recording carrier and duplicate the destination device to copy at step S320.If find other data that will duplicate, then rules proceed to step S318 with determine whether to have enabled the data-switching of original contents, promptly to the conversion of duplicating reproducible data layout on the device of destination.If enabled data-switching, then at step S321 from the information recording carrier reading of content to carry out data-switching, institute's data converted is copied to duplicates the destination device.If do not enable to the conversion of duplicating reproducible data layout on the device of destination, then the processing ends without performing content replication is handled.
Come the sequence of description stream reproduction processes below with reference to Figure 29.In the stream reproduction processes, content management units is output to the reproduction device that for example is connected to network (for example home network), such as TV with output block or PC, and described output block such as display monitor or loudspeaker.From the information recording carrier reading of content administrative unit transcriber, described transcriber has been installed the information recording carrier that is stored in the content of encrypting on the content management units basis.The info class that information recording carrier has been installed thereon goes out in the device (transcriber) to carry out in the processing shown in Figure 29.
At step S331, signal conditioning package is from content, promptly be stored in the content that content management units the information recording carrier selects to flow reproduction processes.For example carry out this processing according to user's input of the input block by being connected to signal conditioning package or according to input from the content specification information of the device of networking.
At step S332, the content management units that identification will be duplicated (CPS unit).As mentioned above, each content management units is associated with following any one:
Title;
Application references;
Playback program;
Playlist; And
Montage.
For each content management units, in reference Figure 22 described " content use and management information table ", the stream reproduction is set to any one above-mentioned setting.Reproduce if enable stream, then can in this table, stream be set and reproduce enabled device information.
At step S333, determine whether to enable stream according to " content use and management information table " and reproduce.Should be noted that not only by check " the content use and management information table " based on stream reproduction permission information that on recording medium, write down carry out this " stream enables? " determine.If externally server has been preserved " content use and management information table ", then come to obtain License Info from server by be connected to server via network.Practical equally is to buy the stream reproduction from server and weigh.
For the content that does not enable to flow reproduction, processing ends without performing stream is handled.For the content that the stream that is enabled reproduces, rules proceed to step S334 to check the information about flow data receiver device compatibility.Flow data receiver device is represented the TV or the PC that for example are connected with home network.By whether for example check can by flow data receiver device handle as be stored in the MPEG-TS data of the content in the information recording carrier, promptly flow data receiver device has TS (transport stream) processing element and the mpeg encoded decoding capability is determined described compatibility.
If in step S335, find to send the content that is stored in the information recording carrier, then at step S338 from the information recording carrier reading of content, begin to send the processing of content thus to flow data receiver device.
If in step S335, find to send the content that is stored in the information recording carrier, then rules proceed to step S336 with determine whether information recording carrier stored except original contents, to be sent out the other guide that is used to flow reproduction.If found to be sent out the content that is used to flow reproduction, then read this content to send to flow data receiver device from information recording carrier at step S339.If find to send the content that is used to flow reproduction, then rules proceed to step S337 with determine whether to have enabled the data-switching of original contents, promptly to the conversion of reproducible data layout on flow data receiver device.If find to have enabled described conversion, then rules proceed to step S340, wherein, from the information recording carrier reading of content, and described content are carried out data-switching to send to flow data receiver device.If the conversion to reproducible data formatting on flow data receiver device has been forbidden in discovery, then processing finishes, and sends and do not carry out content.
The sequence of content remote reproduction processes is described below with reference to Figure 30.In processing, on the reproduction device that is connected to network (for example home network), reproduce content management units in the mode of remote control, described reproduction device is such as TV with output block or PC, described output block such as display monitor or loudspeaker.From the information recording carrier reading of content administrative unit transcriber, described transcriber has been installed information recording carrier, is used to be stored in the content of encrypting on the content management units basis.Installed thereon and carried out the processing shown in Figure 30 in the signal conditioning package (transcriber) of information recording carrier.
At step S351, signal conditioning package from information recording carrier from the content of storage, be the content that content management units selects to carry out the remote control reproduction processes.Carry out this processing according to the input of content specification information from the device of networking.
At step S352, reproducting content administrative unit (CPS unit) is wanted in identification.As mentioned above, each content management units is associated with following any one:
Title;
Application references;
Playback program;
Playlist; And
Montage.
For each content management units, in reference Figure 22 described " content use and management information table ", long-range reproduction is set to any one above-mentioned setting.If enable long-range reproduction, then can in this table, long-range reproduction enabled device information be set.
At step S353, determine whether to enable long-range reproduction according to " content use and management information table ".Should be noted that not only by check " the content use and management information table " based on long-range reproduction permission information that on recording medium, write down carry out this " long-range reproduction enables? " determine.If externally server has been preserved " content use and management information table ", then come to obtain License Info from server by be connected to server via network.Practical equally is to buy long-range reproduction power from server.
For the content that does not enable long-range reproduction, the processing ends without performing teleprocessing.For the content of the long-range reproduction that is enabled, rules proceed to step S354 to check the information about long-range reproduction content receiving device compatibility.Long-range reproduction content receiving device is represented the TV or the PC that for example are connected with home network.By whether for example check can by flow data receiver device handle as be stored in the MPEG-TS data of the content in the information recording carrier, promptly long-range reproduction content receiving device has TS (transport stream) processing element and the mpeg encoded decoding capability is determined described compatibility.
If in step S355, find to send the content that is stored in the information recording carrier, then at step S356 from the information recording carrier reading of content, begin to send the processing of content thus to long-range reproduction content receiving device.
If find in step S356 and can not former state send the content that is stored in the information recording carrier, then processing finishes, and does not send and do not carry out content.
[10. the necessary information in content playback is obtained processing]
The following describes from information recording carrier or from the outside and obtain information processing.Described information is handled and other processing become necessary for carrying out from the reproduction of content that reads of information recording carrier, and described information recording carrier is used for storing by using the content of encrypting for the unique unit key of each content, promptly being stored in each content management units (CPS unit) of information recording carrier.The information of obtaining comprises unit key, the data download of using and about the working rule (service regeulations) of the transcriber of contents management information in content playback.Obtain these information with predetermined rules from the data in server that is recorded to information recording carrier or networking.
The example of acquiring unit key is described below with reference to Figure 31.Figure 31 shows a kind of exemplary configuration, wherein, in information recording carrier, produce information with content storage unit key, described unit key generation information is assigned to each and upgrades key information piece (RKB: more new key block), described renewal key information piece can obtain for producing as the unique media key Km of the needed information recording carrier of the content key of unit key, and, transcriber obtains from information recording carrier and upgrades key information piece (RKB), to obtain unit key according to producing to handle from the unit key of upgrading the media key Km that key information piece (RKB) obtains and use the unit key that obtains from information recording carrier to produce information.
Described renewal key information piece (RKB) is only to handle the encryption key message piece that obtains for the unique media key Km of recording medium by being decrypted according to the device key of storing in having the usufructuary transcriber of legal content.Because must produce the needed key of contents decryption, be unit key that therefore only having the usufructuary transcriber of legal content can obtain unit key by using media key Km.
Illustrate that below with reference to Figure 32 and 33 RKB configuration and key obtain processing.For example represent user's device at the numbering 0-15 shown in the bottom of Figure 32 as the signal conditioning package that is used to use content.Each leaf in the layer tree construction shown in Figure 32 is corresponding to a device.
When making or transport, device 0-15 stores a key set in its storer (device key (DNK: the device nodes key)), it is formed to the key (node key) of the node of root extension and the leaf key of each leaf by being assigned to from leaf own.K000-K11111 in the bottom of Figure 32 represents to be assigned to the leaf key of device 0-15, and, from the KR at top (root key) to the key of penult node, be that KR-K1111 is a node key.
In the tree construction shown in Figure 32, device 0 for example has leaf key K 0000, node key K000, K00, K0 and the KR as device key.Device 5 has K0101, K010, K01, K0 and KR.Device 15 has K1111, K111, K11, K1 and KR.Should be noted that in the tree shown in Figure 32 and only have 16 device 0-15 and symmetrical structure with four layers; Practical equally is that described tree has more device and the number of plies amount except four.
For example, the part of surrounding by dashed circle, be that device 0,1,2 and 3 is assumed to be and is set to one group.For example, suppose that the device that only comprises has the legal right to use, promptly uses the permission that is stored in the encrypted content in the information recording carrier in this group.In this case, only device 0,1,2 and 3 is provided with the RKB that enables to obtain the key that may be used on contents decryption, thus RKB is stored in the information recording carrier of wherein having stored encrypted content.
As can be seen from Figure 32, three devices 0,1,2 and 3 that in a group, comprise be shared in store in each device as device key (DNK: the device nodes key) public keys K00, K0 and KR.
At this moment, the RKB that only allows device 0,1,2 to obtain to may be used in generation the media key used in the unit key (Ku1, Ku2 etc.) of contents decryption disposes for example as shown in Figure 33.RKB is set to
The index enciphered data
000 Enc(K000，Km)
0010 Enc(K0010，Km)
Should be noted that Enc (Kx, Ky) enciphered data of expression by using key K x data decryption Ky to obtain.At this moment, device 0 and 1 can use the device key [K000] that itself is had by them to decipher the enciphered data of index [000].Device 2 can be by the enciphered data of using device key [K0010] to decipher the index [0010] of above-mentioned RKB.The encryption of each of these enciphered datas allows to obtain media key Km.After obtaining media key Km, device 0 and 1 unit key that can produce information and use media key Kum by the unit key that is assigned to each content management units produce to handle and obtain unit key (Ku1, Ku2 etc.).Therefore other devices do not have device key [K000] and [K0010], have at the RKB of the configuration shown in Fig. 4 then can not obtain media key Km by using RKB decipher if receive, so other devices can not generation unit key (Ku1, Ku2 etc.).
Therefore, by the configuration data corresponding to each device with permission is provided, RKB is configured to only to provide to certain device the renewal key information piece of the specific information such as unit key, only can handle described specific information on described certain device.Key information (RKB) can optionally be changed into the RKB that handles on the device that can only allow content to use in its configuration.
Return Figure 31, will the processing that will carry out be described in transcriber.Transcriber 820 reads from information recording carrier 810 and upgrades key information piece (RKB) 811, and the device key 821 that is applied in storage in the transcriber 820 in upgrading key information piece processing section 822 is upgraded key information piece (RKB) 811 with deciphering, obtains media key Km thus.In addition, obtain in the part 823 in unit key, transcriber 820 uses from the unit key generation information 812 of information recording carrier acquisition and media key and comes the performance element key to produce processing, to obtain content key, i.e. unit key.Described unit key produces information 812 and comprises with reference to Fig. 5 aforesaid " configuration of cells and unit key admin table "." configuration of cells and unit key admin table " is admin table, and wherein, the unit is provided with unit information, content management units identifying information and the unit key identifying information connection that is relative to each other.The identifier (Ku1, Ku2 etc.) that this table is configured to the unit key that element identifier (element ID) (CPS1, CPS2 etc.) is corresponding with each is associated, and element identifier (element ID) (CPS1, CPS2 etc.) conduct is corresponding to the identifying information of the content management units of each title.
And data processing section 824 is deciphered the content that reads from information recording carrier 810 by the applying unit key, i.e. the encrypted content of the AV in content management units stream for example obtains thus and reproduces content.It should be noted that, unit key is obtained part 823 and is detected the content management units conversion according to admin table, in described admin table, the unit is provided with unit information, content management units identifying information and the unit key identifying information connection that is relative to each other, and carries out the processing that changes applied unit key according to the information that is detected.
Figure 34 shows and is not from information recording carrier but obtains the needed various information processings of content playback from the server of networking.The necessary information of obtaining from server 850 such as key, in information recording carrier 830 content 831 of storage should be in advance with network associated state (binding state).
In the example shown in Figure 34, transcriber 840 obtains the content service condition (service regeulations) and the data download that are used for the needed information of content playback that conduct is obtained from server.Described content service condition comprises unit key, contents management information and content right to use information.Described data download comprises such as the control information operation, caption data and the voice data that allow to operate according to the control information that will obtain from server rather than the reproduction control information that is recorded to recording medium control when reproducing.Server 850 has database 852, wherein, has stored these information.
In the example shown in Figure 34, transcriber 840 has checking processing section 841, is used for carrying out checking by the application device key and handles.Server 850 has device key database 851, is used to store the device key that is assigned to as the transcriber of user's device.Handle by using shared device key to carry out checking the checking processing section 841 of transcriber 840 and the checking processing section 853 of server 850, promptly confirm the checking sequence of mutual validity, and produce as the session key that is used for encrypt transmitted data according to the public key cryptographic methods for example processing of ISO 9798 appointments (for example by).
After checking successfully, the data processing section 854 of server 850 is to have under the condition of legal device of legal device key to obtain from the needed information of the content playback of database 852, content service condition (service regeulations) and data download at transcriber 840.Described content service condition comprises unit key, contents management information and content right to use information.Described data download comprises such as the control information operation, caption data and the voice data that allow to operate when reproducing according to the control information that will obtain from server control, rather than be recorded to the reproduction control information of recording medium, and send the data of being obtained to transcriber 840.Should be noted that and use session key to encrypt the data that will send.
The unit key of transcriber 840 is obtained with data processing section 842 and is used enciphered data the unit key that receives from server disposed the content 831 that reads from information recording carrier 830 with deciphering the content management units, carries out content playback thus.Should be noted that and carry out control and reproduction processes according to data download when reproducing, described data download is such as the contents management information, content service condition (service regeulations), caption data and the voice data that obtain from server 850.The unit key of transcriber 840 is obtained and data processing section 842 any one among data processing section 854 notice user identifier, signal conditioning package identifier and the information recording carrier identifiers of server 850, reception is corresponding to the control information operation of notification identifier, and according to reproducing based on the control and treatment of the control information operation that is received or being replicated in the content of storing in the above-mentioned information recording carrier.
Should be noted that when server 850 has obtained control information operation transcriber 840 can not only operate control according to the reproduction control information that is recorded to recording medium but also according to the control information of obtaining from server when reproducing.
The following describes the example of the control information operation that will obtain from server.
(control information operation usage example 1)
The copy control information that is updated (CCI information) is treated to the control information operation that can obtain from server.
On the principle, transcriber 840 is used as control information operation according to being controlled by the copy control information (CCI information) of default record on recording medium but obtain new copy control information (CCI information) from transcriber 840.If transcriber 840 obtains to upgrade copy control information (CCI information) from server 850, then transcriber 840 is carried out processing according to the copy control information (CCI information) that obtains from server 850.
The feasible control information that can change after coming the sales figure medium with various timings and upgrade corresponding to various contents of this configuration makes transcriber to carry out replication processes according to the copy control information (CCI information) that institute changes and upgrades thus.
For example, as the copy control information (CCI information) of acquiescence, whom the copy control information (CCI information) that copies to certain device that is under an embargo known the information recording carrier of memory contents by.Transcriber 840 is connected to server 850, to carry out the processing such as user's registration, obtains new copy control information (CCI information) from server thus.The copy control information (CCI information) that is provided by server 850 is the copy control information that enables to copy to certain device, therefore can provide a kind of configuration, wherein, only have transcriber 840 based on the copy permission of server connection processing and can duplicate the unallowed content of copy control information (CCI information) for acquiescence.
(control information operation usage example 2)
Obtain all copy control informations (CCI information) from server 850.
Specify transcriber 840 to obtain copy control information (CCI information), and on recording medium, do not write down copy control information (CCI information) from server 850.This configuration allows to duplicate control in server 850 sides for the content that always will be stored on the recording medium, and allows user and the transcriber of management as the owner of recording medium.
(control information operation usage example 3)
Provide application from server 850 such as Java as control information operation.The application that transcriber 840 is downloaded such as Java from server 850, and carry out the application of being downloaded.The main body scope that Java uses is not only simple reproducing control, and be advertisement as the content service condition show carry out, for specific recording medium buyer's service and user's registration and clearing.
As mentioned above, provide application program such as Java to be used as control information operation from server 850 and can realize a kind of configuration with the program of carrying out as content reproduction condition that is provided, wherein, must make transcriber 840 carry out such as advertisements present, the processing calculating of user's registration and usage charges.
(control information operation usage example 4)
Comprise the operation control and management of duplicating control and management for carrying out in each user, each transcriber and each recording medium of server 850 sides.
Obtaining the needed information of content playback by transcriber 840 in---for example the information such as unit key and control information operation---, server 850 requires transcriber 840 to send customer identification informations, transcriber identifying information, recording medium unique identifying information.Server 850 is associated these identifying informations with the control information operation that comprises the copy control information (CCI information) that is provided to the user, and registers the described information that is associated.Location registration process allows for operate control and management at each user, each transcriber and each recording medium of server 850 sides.
According to the data of being registered, server 850 can allow user, transcriber and recording medium to upgrade the control information operation that a change comprises copy control information (CCI information) independently.Server produces suitably the control information operation corresponding to the identifying information that receives from user, transcriber and recording medium, and sends the information that is produced to transcriber.According to the control information operation that receives from server, transcriber uses content.
Also can dispose a embodiment for the operation control and management that comprises copy control information (CCI information) of each user, each transcriber and each recording medium, wherein, as above, on server side, be arranged on by any control information not to be covered in the copy control information (CCI information) of register system appointment to be provided to transcriber with reference to described in the explanation of the contents management information of Figure 23.
As mentioned above, for parameter of each specific register system (for example dvd standard) standardization copy control information (CCI information) etc.; In case, propagated these standards, then be difficult to expand copy control information (CCI information).
In order to overcome this difficulty, any control information not to be covered is set to user definition information in by the copy control information (CCI information) of register system appointment, and the content owner or the keeper of server 850 sides unique copy control information (CCI information) is set.
The copy control information (CCI information) that is provided with uniquely by server 850 (content owner or keeper) is provided to transcriber 840, and the application (for example Java) that is used for decipher copy control information (CCI information) is provided to transcriber 840.By carrying out the application that obtains from server 850, transcriber 840 deciphers are duplicated control from the uniquely defined copy control information (CCI information) that server 850 obtains to carry out according to described uniquely defined copy control information (CCI information).
It should be noted that, in above-mentioned example, except the unit key of conduct, also show contents management information, content service condition (service regeulations), control information operation, caption data, voice data and other data download from the transmission data of server 850; Obtain these data according to reproduction of content as required, therefore always do not require these data.
In Figure 34, Figure 35 shows from the server that is connected to network and obtains the needed various information processings of content playback.In Figure 35, transcriber 840 and server 850 have checking private key and public-key certificate.In Figure 35, the server key of the device key of transcriber 840 and server 850 is set to verify private key, and storage is set up corresponding to the public-key certificate of the public keys of these private keys.
When transcriber 840 obtains necessary information such as keys, the content 831 of supposing storage in information recording carrier 830 be maintained at network associated state (binding state) in.
In example shown in Figure 35, transcriber 840 obtains as the needed following content of obtaining information of content playback from server: content service condition (service regeulations) comprises unit key, contents management information and content right to use information; Data download such as control information operation, caption data and voice data, is used to make it possible to according to operating control in the reproduction control information that writes down on the recording medium rather than from the control information that server obtains when reproducing.Server 850 has database 852, is used to store these information.
In the example shown in Figure 35, transcriber 840 has unit key, and server 850 is stored described server key in server key database 855.Handle by using device key and server key to carry out checking the checking processing section 841 of transcriber 840 and the checking processing section 853 of server 850, and carry out the checking sequence according to for example public-key encryption disposal route, confirm mutual validity thus, and produce as the session key that is used for the key of encrypt transmitted data.
After successfully verifying, the data processing section 854 of server 850 is to have under the condition of legal device of legal device key to obtain the needed information of content playbacks from database 852 at transcriber 840, i.e. data download such as unit key, contents management information, content service condition (service regeulations), control information operation, caption data, voice data and Still image data, and send the information that these obtained to transcriber 840.Should be noted that and use session key to encrypt the data that will send.
The unit key of transcriber 840 is obtained with data processing section 842 and is deciphered enciphered data the content management units of the content 831 that configuration reads from information recording carrier 830 by using the unit key that obtains from server, carries out content playback thus.It should be noted that, in this reproduces, carry out control and reproduction by using download message, described data download is such as the content service condition (rule), caption data, voice data and the Still image data that obtain from server 850, and described content service condition (rule) comprises contents management information and content right to use information.
Should be noted that if obtain control information operation then transcriber 840 can be according to not being in the reproduction control information that writes down on the recording medium but coming executable operations control when reproducing from the control information that server obtains from server.
For the concrete type of service of the control information operation that obtains from server, can use with reference to the described aforesaid operations control information of Figure 34 usage example 1-4.
It should be noted that, in above-mentioned example, from the transmission data of server 850 except unit key, also comprise contents management information, can service condition (service regeulations), control information operation, caption data, voice data, Still image data and other data download.Obtain these data according to reproduction of content as required, therefore always do not obtain these data.
Figure 36 shows one and handles example, and wherein, transcriber 870 obtains authentication secret from the renewal key information piece (RKB) 861 of storage information recording carrier 860, and comes authentication server 880 by using the authentication secret 872 that is obtained.
The renewal key information piece processing section 873 of transcriber 870 is read from information recording carrier 860 and is upgraded key information piece (RKB) 861, and decipher renewal key information piece (RKB) 861 by the device key 871 of using storage in transcriber 870, obtain authentication secret thus.Can be only the device key of transcriber by not being undone (invalid) decipher and upgrade key information piece (RKB), obtain authentication secret thus.
After the checking of success, the data processing section 884 of server 880 is to have under the condition of legal device of legal device key to obtain the needed information of content playbacks from database 882 at transcriber 870, that is: the content service condition comprises unit key, contents management information and content right to use information; Data download, such as control information operation, caption data, voice data and data-at-rest, their allow to operate control when reproducing according to control information that will obtain from server rather than the reproduction control information that is recorded to recording medium, and the data processing section 884 of server 880 sends the data of being obtained to transcriber 870.Should be noted that and use session key to encrypt the data that will send.
The unit key of transcriber 870 obtain with data processing section 874 by using the unit key that receives from server 880 to decipher to be used for the enciphered data of the content management units that disposes the content 861 that reads from information recording carrier 860, carry out content playback thus.Should be noted that by using and carry out control and reproduction from the data download such as contents management information, content service condition (service regeulations), control information operation, caption data, voice data and Still image data of server 880 acquisitions.
Should be noted that if obtain control information operation then transcriber 870 can be according to not being in the reproduction control information that writes down on the recording medium but coming executable operations control when reproducing from the control information that server obtains from server.
For the concrete type of service of the control information operation that obtains from server, can use with reference to the described aforesaid operations control information of Figure 34 usage example 1-4.
It should be noted that, in above-mentioned example, except unit key, also comprise contents management information, comprise content service condition (service regeulations), control information operation, caption data, voice data, Still image data and other data download of content right to use information from the transmission data of server 880.Obtain these data according to content playback as required, therefore always do not obtain these data.
Figure 37 shows an example, wherein, server provides more new key block (RKB) corresponding to content (content management units) to transcriber, promptly can only be decrypted and handle the more new key block (RKB) that obtains authentication secret by the device key that has the usufructuary transcriber of legal content via application, described transcriber obtains authentication secret with by using the authentication secret that is obtained to come authentication server from new key block (RKB) more, carries out the processing that obtains necessary information when successfully verifying from server thus.
To be selected as corresponding to RKB perhaps in each of transmitting time point to the RKB that transcriber sends from server.If RKB is corresponding to each content, then the RKB with that content is used to obtain the unit key that will be applied to the given content management units of deciphering.If RKB is the RKB of the version of appointment corresponding to the RKB transmitting time, then use the up-to-date RKB of that version.If exist in the device that is undone constantly, then the transcriber in the device that is being undone sends the unacceptable RKB of described latest edition.
Another kind of configuration also can be provided, wherein, provide RKB up-to-date when content is set up.In addition, can dispose the combination of the latest edition of that content.When the transcriber access server, server sends suitable RKB to transcriber.At this moment, server can send the whole RKB that is used for that transcriber or the necessary part of RKB only.
The renewal key information piece processing section 922 of transcriber 920 obtains authentication secret by deciphering via the device key 921 of using storage in transcriber 920 from the renewal key information piece (RKB) that upgrades that key information piece (RKB) database 931 reads and the checking processing section 933 of serviced device 930 sends to transcriber.Can be only by not cancelling the transcriber of (invalid) device key of---it can obtain authentication secret---carry out the deciphering that each upgrades key information piece (RKB).
Server 930 has the authentication secret database 932 that is used to store corresponding to the authentication secret of RKB.Between the checking processing section 923 of the checking processing section 933 of server 930 and transcriber 920, handle by using shared authentication secret to carry out based on the checking of public key approaches.
After successfully verifying, the data processing section 935 of server 930 is to have under the condition of legal device of legal authentication secret to obtain the needed information of content playbacks from database 934 at transcriber 870, such as: content service condition (service regeulations), comprise unit key, contents management information and content right to use information; And data download, such as the control information operation, caption data, voice data and the data-at-rest that allow when reproducing, to operate control according to the control information that will obtain from server, rather than be recorded to the reproduction control information of recording medium, and the data processing section 935 of server 930 sends the data of being obtained to transcriber 920.Should be noted that and use session key to encrypt the data that will send.
The unit key of transcriber 920 obtain with data processing section 924 by the enciphered data the content management units of using the unit key that receives from server 930 to decipher to have disposed the content 911 that reads from information recording carrier 910, carry out content playback thus.It should be noted that, carry out control and reproduction by using data download, described data download is such as the contents management information, content service condition (service regeulations), control information operation, caption data, voice data and the Still image data that obtain from server 930.
It should be noted that, if obtained control information operation from server 930, then transcriber 920 can be according to not being to be recorded to the reproduction control information on the recording medium but to operate control according to coming according to the control information of obtaining from server when reproducing.
About the concrete type of service of the control information operation that obtains from server, can use with reference to the described aforesaid operations control information of Figure 34 usage example 1-4.
It should be noted that, in above-mentioned example, except unit key, also comprise contents management information, comprise content service condition (service regeulations), caption data, voice data, Still image data and other data download of content right to use information from the transmission data of server 930.Obtain these information according to reproduction of content as required, therefore always do not obtain these information.
Described the preferred embodiments of the present invention though used concrete term, should be understood that under the situation that does not break away from spirit of the present invention those skilled in the art can make amendment and change.Therefore, come to determine uniquely scope of the present invention by claim as mentioned above.
Can make up by software, hardware or its and carry out the above-mentioned processing sequence of operation.When carrying out the above-mentioned processing sequence of operation by software, the program that constitutes described processing sequence is installed in the storer of computing machine built-in in special hardware, for example perhaps be installed in the multi-purpose computer, in described multi-purpose computer, various programs can be installed to carry out various functions.
For example, can be in advance to hard disk and ROM (ROM (read-only memory)) logging program as recording medium.Perhaps, can in removable recording medium, temporarily or for good and all store (or record) program, described removable recording medium such as floppy disk, CD-ROM (compact disk ROM (read-only memory)), MO (magneto-optic) dish, DVD (digital universal disc), disk and semiconductor memory.These removable recording mediums may be provided in so-called canned software.
Should be noted that to come to computing machine, to download in wired mode with wireless mode or via the network such as LAN (LAN (Local Area Network)) or the Internet from the download website except to computing machine, installing such as above-mentioned removable recording medium.Described computing machine receives the program of being downloaded, and they are recorded incorporating in the recording medium such as audio frequency.
Should be noted that at this step that is used to describe each program not only comprises to depend on the time mode processing operation of carrying out in regular turn, and the processing operation that comprises simultaneously or disperse to carry out.
Should be noted that the logical collection of a plurality of component units of term " system " expression as used herein, they always are not positioned at same shell yet.
As mentioned above, according to embodiments of the invention, be set to by the institute's memory contents in the information recording carrier of memory contents is divided the data area that obtains corresponding to a plurality of content management units of title, index and other information.Different units key as encryption key is assigned to different content management units.Encrypt the content True Data that in each content management units, comprises at least by the use unit key, and storage institute ciphered data.The configuration of this novelty allows the content use and management on unit basis; More specifically, described novel arrangement allows various contents to use control, such as reproducing control, duplicate control etc.According to the present invention, can be independently carrying out content use control on the content management units basis, so that in the information recording carrier of for example storing many contents, can manage the content that each is divided.This management method needing in the memory contents may be used on the configuration of segmentation copyright management or use and management in the huge volumes of content recording medium such as DVD and Blu-ray disc.
And, according to embodiments of the invention, be used for carrying out in the signal conditioning package of the reproduction of content that information recording paper is stored, identification comprises the content management units of the data area that the content choice from be stored in information recording carrier is used to reproduce, selection is corresponding to the unit key of institute's content identified administrative unit, and, reproduce content thus by using selected unit hen will decipher the enciphered data that in content management units, comprises.The feasible content that can be reproduced in reliably in each content management units of the configuration of this novelty.And in cell translation, the conversion of performance element key can be carried out content playback by deciphering based on correct key thus when cell translation takes place.Therefore, the present invention may be used on being used to reproduce the signal conditioning package of carrying out information encrypted recording medium on it on the content management units basis.
And, according to embodiments of the invention, if in the signal conditioning package that is used for carrying out the reproduction of content that is stored in information recording carrier, discerned the content management units of the data area that comprises that the content choice from be stored in information recording carrier is used to reproduce, and by obtaining to want to carry out content playback corresponding to the unit key of institute's content identified administrative unit, then realized a kind of configuration, wherein, the server that connects from the outside obtains the control information operation such as copy control information and reproduction control information, can carry out the processing such as using the copy control information that upgrades thus.And, the configuration of described novelty has realized a kind of configuration, wherein, the server that can connect from the outside obtains to handle according to controlling corresponding to the independent operation of each user and transcriber thus corresponding to the copy control information of user identifier, transcriber identifier or information recording carrier identifier and the control information operation such as reproduction control information.Therefore, the present invention may be used on carrying out corresponding to each user or each transcriber or reproduction of content control or duplicates any apparatus and method of control.
Claims (43)
1. information recording carrier that is used for memory contents, described information recording carrier has such configuration, and content management units wherein is set, and this content management units is the data division zone, and this data division zone comprises following at least any one:
Be stored in the content in the information recording carrier;
The contents reproducing section specification file;
The content playback handling procedure;
The application references file; And
Use execute file,
Data file that comprises in described content management units and any one in the program file are stored as enciphered data based on the separate unit key corresponding to described content management units.
2. according to the information recording carrier of claim 1, wherein, at least some content management units that are provided with in described information recording carrier are corresponding to the heading message that is stored in each content in the described information recording carrier and index information and the unit that is provided with, and determine unique content management units and the unit key corresponding with it based on the selection of described heading message and described index information.
3. according to the information recording carrier of claim 2, wherein, described heading message and described index information can offer the user.
4. according to the information recording carrier of claim 1, wherein, at least some content management units that are provided with in described information recording carrier are the unit that are provided with corresponding to being stored in a plurality of content playback handling procedures in the described information recording carrier, and determine unique content management units and with it corresponding unit key based on determining of described a plurality of content playback handling procedures of carrying out on the transcriber that described information recording carrier will be installed thereon.
5. according to the information recording carrier of claim 1, wherein, at least some content management units that are provided with in described information recording carrier are the unit that are provided with corresponding to being stored in a plurality of contents reproducing section specification files in the described information recording carrier, and determine unique content management units and with it corresponding unit key based on the described contents reproducing section specification file of being selected by the described content playback handling procedure of carrying out on the transcriber that described information recording carrier will be installed thereon.
6. according to the information recording carrier of claim 1, wherein, at least some content management units that are provided with in described information recording carrier are the unit that are provided with corresponding to as being stored in the clip files of a plurality of content True Data storage files in the described information recording carrier, and based on determining unique content management units and with it corresponding unit key by the selected reproduction clip files of carrying out on the transcriber that described information recording carrier will be installed of described content playback handling procedure thereon.
7. according to the information recording carrier of claim 1, wherein, the content management units that is provided with in described information recording carrier comprises:
First module, it comprises the content True Data that is stored in the described information recording carrier; And,
Unit second, it does not comprise the content True Data, but comprise be stored in described information recording carrier in the corresponding application execute file of application references file;
Described first module comprises by different unit key ciphered data files and at least one in the program file with Unit second.
8. according to the information recording carrier of claim 1, wherein, at least some content management units that are provided with in described information recording carrier are configured to comprise the application execute file that is stored in the described information recording carrier and the unit of content playback handling procedure.
9. according to the information recording carrier of claim 1, wherein, at least some content management units that are provided with in described information recording carrier are configured to comprise to be used execute file, content playback processing file and is being stored in the application resource file that uses in the execution of the described application execute file in the described information recording carrier.
10. according to the information recording carrier of claim 1, wherein, some content management units that are provided with in described information recording carrier are configured to comprise the contents reproducing section specification file, as the AV stream file of the content True Data that will quote from described contents reproducing section specification file, use execute file and be stored in the unit of the application resource file that uses in the execution of the described application execute file the described information recording carrier.
11. information recording carrier according to claim 1, wherein, stored admin table, in this admin table, the unit is provided with unit information, content management units identifying information and unit key identifying information as the information that forms each described content management units and the connection that is relative to each other.
12. information recording carrier according to claim 1, wherein, described information recording carrier store status admin table has wherein been stored and is used to indicate each described content management units to be in the state that is independent of network or is in status information with the network associated state.
13. according to the information recording carrier of claim 12, wherein, described condition management table is stored the initial state information at least of each content management units.
14. according to the information recording carrier of claim 12, wherein, described condition management table is stored the initial state information and the current state information of each content management units.
15. according to the information recording carrier of claim 1, wherein, stored content use and management information table, described content use and management information table storage is used the restricted information that is associated with the content of each content management units.
16. according to the information recording carrier of claim 15, wherein, described content use and management information table record uses restricted information, described use restricted information is used to indicate and is in the state that is independent of network or is in and the network associated state.
17. according to the information recording carrier of claim 15, wherein, described content use and management information table has and is used for the information that instruction content is controlled based on the obtainable control information operation in outside.
18. according to the information recording carrier of claim 17, wherein, described content use and management information table comprises the information that is used to specify the server that is used to obtain described control information operation.
19. according to the information recording carrier of claim 1, wherein, described information recording carrier is also stored the content that is used for replication processes or stream reproduction except original contents.
20. according to the information recording carrier of claim 19, wherein, the described content that is used for replication processes or stream reproduction has the data layout different with the data layout of described original contents.
21. a signal conditioning package is used for carrying out the reproduction of content that is stored in information recording carrier, comprising:
Unit key is obtained part, be used to discern content management units, described content management units comprises the data area, described data area is selected to be used for reproducing or carrying out the interior perhaps program that is stored in information recording carrier, so that obtain the unit key corresponding to the content management units that is identified; And
Data processing section is used for coming decrypted packet to be contained in the enciphered data of described content management units by using by the unit key of described unit key acquisition unit component selections.
22. signal conditioning package according to claim 21, wherein, described unit key is obtained part and is configured to detect based on admin table the content management units conversion, in described admin table, the unit is provided with unit information, content management units identifying information and the unit key identifying information connection that is relative to each other, but and carries out the applying unit key according to the information that is detected and change and handle.
23. the signal conditioning package according to claim 21 also comprises:
Upgrade key information piece processing section, be used for carrying out described unit key and obtain processing by deciphering renewal key information piece, described renewal key information piece can only use and be stored in the key that has in the usufructuary signal conditioning package of legal content and handle, and described key is arranged to corresponding with described content management units.
24. according to the signal conditioning package of claim 23, wherein, described renewal key information piece obtains from the server of information recording carrier or networking.
25. the signal conditioning package according to claim 21 also comprises:
The checking processing section is used for verifying processing with the server of networking,
Wherein, successfully the checking after, described unit key obtain the part or described data processing section from described server obtain comprise unit key, the needed information of content playback.
26. the signal conditioning package according to claim 21 also comprises:
Upgrade key information piece processing section, be used for upgrading the key information piece by deciphering and obtain the authentication secret that the checking that will be applied to the server that adopts networking is handled, described renewal key information piece can only use and be provided with and be stored in the key that has in the usufructuary signal conditioning package of legal content corresponding to described content management units and handle; And,
The checking processing section is used for coming authentication server by using the authentication secret that processing obtained of being undertaken by described renewal key information piece processing section;
Wherein, successfully the checking after, described unit key obtain the part or described data processing section from described server obtain comprise unit key, the needed information of content playback.
27. according to the signal conditioning package of claim 21, wherein, described data processing section determines that described content management units is in the state that is independent of network or is in and the network associated state, and carries out content according to definite result and use control.
28. according to the signal conditioning package of claim 27, wherein, described content uses control to be performed based on being used to store the content use and management information table of the control information that is associated with the use of each described content management units.
29. signal conditioning package according to claim 21, wherein, described data processing section receive be stored in described information recording carrier in the corresponding control information operation of content, and, reproduce or duplicate the described content that is stored in the described information recording carrier according to control based on the control information operation that is received.
30. signal conditioning package according to claim 21, wherein, at least one among server notification user identifier, signal conditioning package identifier and the information recording carrier identifier of networking of described data processing section, receive the control information operation corresponding from the server of described networking with the identifier of being notified, and, reproduce or duplicate the content that is stored in the described information recording carrier according to control based on the control information operation that is received.
31. an information processing method is perhaps carried out the program that is stored in information recording carrier in being used for reproducing, comprise step:
Identification content management units, this content management units comprise and are selected to reproduce or carry out the data area that is stored in perhaps described program in described in the information recording carrier;
Select and the corresponding unit key of institute's content identified administrative unit; And
By using selected unit key to come decrypted packet to be contained in enciphered data in the described content management units, to carry out that content playback is handled or program is carried out and handled.
32., also comprise step according to the information processing method of claim 31:
Detect the content management units conversion based on admin table, but and carry out the change of applying unit key according to the information that is detected and handle, in described admin table, the unit is provided with unit information, content management units identifying information and the unit key identifying information connection that is relative to each other.
33., also comprise step according to the information processing method of claim 31:
The performance element key obtains processing by the key information piece of deciphering renewal, the key information piece of described renewal can only use and be stored in the key that has in the usufructuary signal conditioning package of legal content and handle, and described key is arranged to corresponding with described content management units.
34. according to the information processing method of claim 31, wherein, described renewal key information piece obtains from the server of information recording carrier or networking.
35., also comprise step according to the information processing method of claim 31:
Adopt the server of networking to verify processing, and after checking successfully, from described server obtain comprise unit key, the needed information of content playback.
36., also comprise step according to the information processing method of claim 31:
The key information piece that upgrades by deciphering obtains the authentication secret that the checking that will be applied to the server that adopts networking is handled, and the key information piece of described renewal can only use and be provided with and be stored in the key that has in the usufructuary signal conditioning package of legal content corresponding to described content management units and handle:
The authentication server by using the authentication secret that processing obtained of being undertaken by the key information piece processing section of described renewal; And,
After good authentication, from described server obtain comprise unit key, the needed information of content playback.
37., also comprise step according to the information processing method of claim 31:
Determine that described content management units is in the state that is independent of network or is in and the network associated state, and carry out content according to definite result and use control.
38. according to the information processing method of claim 37, wherein, described content uses control to be performed based on being used to store the content use and management information table of the control information that is associated with the use of each described content management units.
39. the information processing method according to claim 31 comprises step:
From the server of networking receive be stored in described information recording carrier the corresponding control information operation of content, and according to control, reproduce or duplicate the content that is stored in the described information recording carrier based on the control information operation that is received.
40. the information processing method according to claim 31 comprises step:
Among server notification user identifier, signal conditioning package identifier and the information recording carrier identifier of networking at least one;
Receive the control information operation corresponding from the server of described networking with the identifier of being notified; And,
According to control, reproduce or duplicate the content that is stored in the described information recording carrier based on the control information operation that is received.
41. a computer program is perhaps carried out the program that is stored in information recording carrier in being used for reproducing, comprise step:
Identification content management units, described content management units comprise and are selected to reproduce or carry out the data area that is stored in perhaps described program in described in the described information recording carrier;
Select and the corresponding unit key of institute's content identified administrative unit; And
By using selected unit key to come decrypted packet to be contained in enciphered data in the described content management units, to carry out that content playback is handled or program is carried out and handled.
42. a server is used for providing to transcriber being used for the unit key of decryption content, described transcriber is used for reproducing the content that is stored in information recording carrier, and described server comprises:
Database is used to store the unit key corresponding with content management units;
The checking processing section is used to verify described transcriber; And
Data processing section is used for providing described unit key after the good authentication of described checking processing section.
43. the server according to claim 42 also comprises:
The key information blocks of data storehouse of upgrading, the key information piece that is used for storage update, and will be used to verify that the authentication secret of processing saves as enciphered message, the key information piece of described renewal can only use the key of storing in having the usufructuary signal conditioning package of legal content to handle; And,
The authentication secret database is used to store described authentication secret,
Wherein, described checking processing section provides described renewal key information piece to the transcriber of carrying out content playback, and carries out checking by the described authentication secret that application is obtained from described authentication secret database and handle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003293308 | 2003-08-14 | ||
| JP293308/2003 | 2003-08-14 | ||
| JP337665/2003 | 2003-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1836221A true CN1836221A (en) | 2006-09-20 |
| CN100440179C CN100440179C (en) | 2008-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004800236786A Expired - Fee Related CN100440179C (en) | 2003-08-14 | 2004-08-10 | Information processing device, information recording medium, information processing method, and computer program |
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| Country | Link |
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| CN (1) | CN100440179C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103876A (en) * | 2009-12-18 | 2011-06-22 | 索尼公司 | Information processing apparatus, information recording medium, information processing method, and computer program |
| CN102119392A (en) * | 2008-08-21 | 2011-07-06 | 索尼公司 | Information processing device, method for processing data, and program |
| CN1819045B (en) * | 2004-12-02 | 2011-08-03 | 索尼株式会社 | Reproduction apparatus, reproduction method, reproduction program, record medium, and data structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2338634C (en) * | 1999-05-28 | 2007-06-26 | Matsushita Electric Industrial Co., Ltd. | A semiconductor memory card, playback apparatus, recording apparatus, playback method, recording method, and computer-readable recording medium |
| JP2001257670A (en) * | 2000-03-14 | 2001-09-21 | Hitachi Ltd | Contents storage device and contents reader |
| JP2002261747A (en) * | 2000-12-28 | 2002-09-13 | Sony Corp | Data distribution method and distribution system |
-
2004
- 2004-08-10 CN CNB2004800236786A patent/CN100440179C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1819045B (en) * | 2004-12-02 | 2011-08-03 | 索尼株式会社 | Reproduction apparatus, reproduction method, reproduction program, record medium, and data structure |
| CN102119392A (en) * | 2008-08-21 | 2011-07-06 | 索尼公司 | Information processing device, method for processing data, and program |
| CN102103876A (en) * | 2009-12-18 | 2011-06-22 | 索尼公司 | Information processing apparatus, information recording medium, information processing method, and computer program |
| CN102103876B (en) * | 2009-12-18 | 2014-10-22 | 索尼公司 | Information processing apparatus, information processing system and method |
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| CN100440179C (en) | 2008-12-03 |
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