JP2001067408A - Dynamic updating method of use condition of capsulated content and recording medium where dynamic update program is recorded - Google Patents

Dynamic updating method of use condition of capsulated content and recording medium where dynamic update program is recorded

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Publication number
JP2001067408A
JP2001067408A JP24168299A JP24168299A JP2001067408A JP 2001067408 A JP2001067408 A JP 2001067408A JP 24168299 A JP24168299 A JP 24168299A JP 24168299 A JP24168299 A JP 24168299A JP 2001067408 A JP2001067408 A JP 2001067408A
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JP
Japan
Prior art keywords
content
encapsulated
use condition
update
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP24168299A
Other languages
Japanese (ja)
Inventor
Atsuhiko Ishimaru
敦彦 石丸
Original Assignee
Nippon Telegr & Teleph Corp <Ntt>
日本電信電話株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegr & Teleph Corp <Ntt>, 日本電信電話株式会社 filed Critical Nippon Telegr & Teleph Corp <Ntt>
Priority to JP24168299A priority Critical patent/JP2001067408A/en
Publication of JP2001067408A publication Critical patent/JP2001067408A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To enable a digital content distribution system to dynamically change the use conditions or data of contents having been distributed at a request made by a content manufacture side. SOLUTION: This dynamic updating method specifies the storage position of use conditions or capsulated contents 21 as an object of update of contents on a capsulated content storage server 1 and a user terminal 2 having purchased the capsulated contents 21. Further, the storage position of digital contents to which use conditions included in the capsulated contents are added is specified. The adequacy of the use conditions or contents to be updated is verified and the use conditions or contents are updated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technical field of distributing digital contents through a network, and more particularly, to a method of partially updating a use condition of contents distributed to a user at the request of a contents producer. The present invention relates to a method and apparatus for batch updating and a recording medium on which a use condition update program for digital contents with use conditions is recorded.

[0002]

2. Description of the Related Art Terms of use such as expiration date and number of uses in the distribution of digitized content such as music, images, moving images, and applications via a network are such that digital content whose term has expired is distributed again, It is common to update it by replacing it.

[0003]

In the above-mentioned prior art, it is impossible to change the use conditions of digital contents or contents at any time at the request of the contents creator. Was not possible. For this reason, the usage method intended by the content creator could not be realized, and this was one of the factors that hindered the transaction of digital content on the network.

[0004] It is an object of the present invention to provide a digital content distribution system via a network in which a usage condition of digital content with usage conditions is determined according to a method intended by a content creator, at an intended time, according to a request from the content creator. It is an object of the present invention to provide a method of dynamically changing usage conditions of encapsulated content, which can dynamically change usage conditions or data of distributed content.

[0005]

Means for Solving the Problems The present invention (claim 1) provides:
In an environment where the encapsulated content exists on the content storage server and the content user terminal, without re-creating the encapsulated content to which the use condition updated when updating the use condition of the content is used. , An update capsule capable of updating the use condition of the digital content included in the encapsulated content, and specifying the storage location of the encapsulated content stored on the content storage server when the storage server is registered. Content specific I
D and the encapsulated content storage location information, and on the content user terminal, similarly when the encapsulated content is reproduced, the content unique ID, the digital content unique ID and the encapsulated content storage location information are identified and included. It invokes the included search method from the specified interface, specifies the digital content to be updated, decrypts the invisible use condition, and updates the use condition.

[0006] The present invention (claim 2) is to specify the storage position of the encapsulated content when updating the use condition of the digital content included in the encapsulated content stored on the content storage server. Encapsulated content unique ID, digital content unique I by registration application when registering server
D, the storage location is correlated, and stored in the content storage server as storage location index information, and the user terminal information of the user who distributed the encapsulated content is simultaneously associated with the encapsulated content.

According to the present invention (claim 3), when the encapsulated content acquired by the user for specifying the distribution destination of the encapsulated content is reproduced, the content reproduction application transmits the content user's unique information to the content storage server. , And obtains the MAC address of the network device and the unique number of the hardware device as unique information of the user terminal, distributes the mail address, and provides the unique ID of the distributed content and the unique ID of the encapsulated content.
And stored in the content storage server as distribution destination index information.

The present invention (claim 4) activates a reproduction application capable of reproducing and executing the encapsulated content stored on the user terminal in an environment where the encapsulated content is distributed to the user. At this time, a correspondence between the unique ID of the encapsulated content included in the encapsulated content and the unique ID of the digital content to be reproduced / started and the storage position is created as content index information and stored in the user terminal. . When the update capsule is stored on the user terminal, the content playback application is started, and the update capsule refers to the content index information stored on the user terminal and specifies the storage location of the encapsulated content.

[0009] The present invention (claim 5) is a method for specifying a digital content to be updated from a group of digital contents included in the encapsulated content, and launches a content reproduction application to activate an update capsule. , The unique ID of the digital content to be decrypted and updated from within the encrypted update capsule
And a content playback application that decrypts the encrypted encapsulated content and plays each from the unique ID group of the contained digital content, and creates correspondence between usage history information and storage location information for each content. A search method included in the encapsulated content retrieves the stored index information, converts the corresponding storage location information into a content reproduction application, and specifies the storage location of the digital content to be updated in the encapsulated content.

When the digital content is stored at the designated position, the updating method of the updating capsule is activated, and the updating of the use condition and the digital data is started. If there is no digital content at the storage location, the validity of the digital content and the validity of the encapsulated content are processed.

[0011] When reproducing digital contents included in the encapsulated contents, a unique ID and copyright information of the digital contents are read out at the time of reproducing the contents, and usage history information for reproducing at the end is created. At the time of updating, the stored index information is read before the update function is started, and the correspondence between the unique ID of the reproduced content, the copyright information, and the use history information is mapped. The stored content information is encrypted using the content unique ID as a key so that the stored content information cannot be directly referenced from the outside, and is invisible. The stored content information can be decrypted and referenced when the update method is activated.

According to the present invention (claim 6), when a use condition in a digital content is updated, a request for updating a condition that can be added (restricted the number of times, a time limit, an age limit) and changed with respect to a different use condition is issued by the content provider. When performed by the producer, not only is the use condition updated, but the use conditions are calculated to create a new use condition. A method of encapsulating a method that can perform this operation in the usage condition capsule is realized by holding the similar function in the content reproduction application. Regarding different use conditions, the last bit of the stream including the use condition is used as the use condition determination bit.

According to the present invention (claim 7), the content creator or the content creator or the content creator or the content data is updated when there is a use condition for the distributed content and a request for updating the content data. A capsule for updating usage conditions and content data of digital content included in the encapsulated content distributed on the storage server is created. The configuration of the capsule includes the unique ID of the digital content to be updated, the unique ID of the encapsulated content including the digital content to be updated, the unique information of the user who acquired the encapsulated content and the user terminal, and the update. Includes usage conditions and content data, a method for updating, a method for searching inside capsules that are invisible from the outside, and a method for searching for the storage location of encapsulated content, simplifying the updating operation after distribution on the user terminal Therefore, the structure is the same as that of the encapsulated content so that the encapsulated content already distributed on the user terminal can be activated by an application that can be reproduced and executed.

According to the present invention (claim 8), the content creator distributes the unique ID of the digital content whose use condition is to be updated and the use condition for update to the content storage server, and then the content creator in the processing unit of the content storage server. Performs the same processing as that for generating an update capsule, and generates an update capsule. The configuration is the same as the encapsulated content, and can be executed by a content reproduction application. As information included in the update use condition capsule, the update content specific I
D, an update use condition, and a use condition update method description method are held. Each of them is directly encrypted so as to be invisible, and holds a search interface that can directly use these.

[0015] The present invention (claim 9) shows the structure of encapsulated content disclosed by the content creator / provider, and the internal components of the encapsulated content are used to make them invisible with use conditions. It is composed of a plurality of encrypted digital contents. The digital content in the encapsulated content to be created includes a content created by one content creator and a digital content created by a different content creator. Encapsulated content is
It holds the unique information of the encapsulated content itself, the unique information of the contained digital content, and a search interface that can search the inside as index information of the contained digital content, and also encrypts it to make it directly inoperable. And become invisible. The update use condition capsule holds an interface that holds a method that can search the index information.

A search method is started from the interface in the capsule, the content to be updated is decrypted, and the use condition to be updated in the digital content included in the encapsulated content is updated. At this time, if the completely updatable information is added to the use condition, the use condition is updated, and if not, the use condition is added and the encapsulated content is reconstructed.

The present invention (Claim 10) describes a mechanism for guaranteeing the validity of encapsulated content containing digital content, and this guarantee mechanism includes an encapsulation contained for each digital content. It has a function to guarantee whether the content is legitimate. Verify the digital information found during the search of the content to be updated in the update capsule and the data of the encrypted information using the unique ID of the encapsulated content individually held by the update capsule as a key However, if the data is the same, it is regarded as valid, and if the data is different, the encapsulated content is regarded as having been improperly modified, and the update procedure is terminated.
The update capsule also has a mechanism for guaranteeing the validity, and decrypts encrypted data that uses the unique ID of the update capsule held in the encapsulated content and the digital content to be updated as a key. Then, the two data are compared and the case where they are the same is regarded as valid, the content reproduction application accepts the update request, starts the update procedure, and ends the update procedure if the data is different.

According to the present invention (claims 11 and 12), when the use condition and digital data in the digital content are updated, it is determined whether or not the digital content to be updated is a legitimate update target as viewed from the update capsule. Regarding the assurance mechanism, both the digital content and the updating capsule have a mechanism to verify whether the usage condition updating capsule is valid for the digital content in the encapsulated content when the capsule is updated. Then, it is verified whether the data is the data to be updated and the data to be updated individually, and after verifying that it is valid data for updating, the updating method is activated.

[0019]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a configuration diagram of a digital content distribution system according to an embodiment of the present invention.

The digital content distribution system includes a content storage server 1 for distributing encapsulated content produced by a content producer through a network, a user terminal 2, a producer terminal 3, and a network 4.

When updating the digital content and usage conditions in the encapsulated content created by the content creator, the content creator terminal 3 sends an update request command and an update request command to the storage server 1 storing the encapsulated content. Send data. The update data includes the unique ID of the encapsulated content to be updated, the unique ID of the content to be updated, the update content or the usage conditions. When the request from the creator is received by the control unit 13, the content storage server 1
Then, using the encapsulated content ID to be updated as a key, a search is made in the database created when the storage server is registered. The database created at the time of registration of the storage server means that when registering the encapsulated content in the content storage server 1, the processing unit 12 of the storage server 1 indexes the content unique ID, the included digital content unique ID, and the storage location information. And created.

FIG. 2 is a schematic sequence diagram of a method of dynamically updating the use condition of the encapsulated content.

The content user terminal 2 issues a content request to the content storage server 1 together with the user specific information (step 101). The content storage server 1 creates a content distributor database in response to the content request (step 102). That is, when the user acquires the encapsulated content 21 (FIG. 3) via the network 4 and reproduces / activates the encapsulated content 21, the content reproduction application 20
The user terminal registration dialog is displayed, and the personal information, the mail address, and the network address acquired by the reproduction application 20 are transmitted to the mail storage server 1 to complete the registration. Also, if email is not available,
The registration is completed by moving to the user / user terminal registration URL prepared in the content storage server 1 and registering manually.

At the time of content distribution, a user terminal and user information are obtained from the user (FIG. 7). The encapsulated content storage server 1 associates the obtained user terminal information and user information with the distributed encapsulated content. There are two types of association, a distribution destination list using the encapsulated content as a key, and a purchased encapsulated content unique ID list using the user information as a key, and these are used as distribution destination index information. 1 is stored. Distribute the content with usage conditions to the content user terminal 2 (step 10)
3). Thereafter, when updating the content created by the content creator, an update execution request is issued to the content storage server 1 to execute the update. When the use condition for updating is transferred from the content creator terminal 3 to the content storage server 1 (step 104), the content storage server 1 determines a distribution destination using the content unique ID as a key (step 105), and The use condition is updated (step 106), and the update use condition is distributed to the content user terminal 2 (step 107).
The content user terminal 2 receives the update use condition and updates the content use condition (step 10).
8).

The encapsulated content storage server 1 responding to the update request from the encapsulated content creator stores the encapsulated content unique ID stored in the content storage server 1 and the distribution destination user information storage server. Refer to the information associated with the position information, and execute an update request from the producer.
(FIG. 3) is created (this operation is shown in FIG. 9).

FIG. 3 is a diagram for explaining a process of updating the use conditions in the already delivered encapsulated content on the user terminal 2, and is required when the content user uses the encapsulated content. The flow from the procedure for issuing a usage right to updating the usage conditions is shown.

In order to specify the encapsulated content to be updated in the user terminal 2, the encapsulated content is specified with reference to the index information created by the content reproduction application 20. The index information is a database created when the reproduction application reproduces the encapsulated content. The index information is a database managed by the content reproduction application 20 by indexing the encapsulated content unique ID, the included digital content unique ID, and the storage location information. Create

The user terminal 2 is provided with a content reproduction application 20 including an encapsulated content 21, an update use condition capsule 22, and a use condition processing unit 23. The encapsulated content 21 includes a data part 26, a search method 31, a verification method 32, a processing method 33, and an interface 24. The update use condition capsule 22 includes an update data part 27 and an update method 34.
, A verification method 35, a search method 36, and an interface 25.

When the user executes the encapsulated content 21 using the content reproduction application 20 on the user terminal 2 in order to execute the encapsulated content 21, the encapsulated content unique ID, the included digital content The reproduction application 20 converts the unique ID and the storage position information into a database and stores the database. When the update use condition capsule 22 is activated, the storage index information stored in the database is referred to, and the encapsulated content to be updated stored in the referred storage location is specified. When the storage position of the encapsulated content 21 to be updated on the user terminal 3 is specified, the content reproduction application 20 opens the encapsulated content to be updated. In order to specify the digital content to be updated from the plurality of digital contents included in the encapsulated content, the content reproduction application 20 refers to the unique ID of the digital content to be updated included in the update capsule 22, and performs encapsulation. Using this value as a key in the content search method 31, the encapsulated content 21 in which the capsule storage information exists is searched.
The information stored in the capsule is information that is simultaneously created when the content creator or the content provider (storage server operator) creates the encapsulated content 21, and includes the encapsulated content unique ID, the information of the included method, and the included This is a group of content unique IDs. The content unique ID group is a database in which unique IDs, storage location information, and names of the included digital contents are associated. This value is searched, the storage location is specified from the corresponding digital content unique ID, the validity of the use condition or the content to be updated is verified, and the updated portion is updated. When the update use condition capsule 22 starts, the content reproduction application 20 is started, and the reproduction application 20 simultaneously starts the included update method 34 via the interface 25 included in the update use condition capsule 22. Activate a search method 36 in which the update method 34 is included,
The update data section 27 is searched to determine whether the content to be updated exists on the user terminal 2. At this time, the unique ID of the content to be updated and the unique ID of the encapsulated content 21 containing the content are returned to the use condition processing unit 23 of the reproduction application 20. The use condition processing unit 23 searches for the corresponding encapsulated content 21 using the value returned by the search method 36 in the update capsule 22, and uses the interface 2 of the encapsulated content 21.
4 and activates the included search method 31.

The search method 31 searches the information stored in the capsule in the data part 26,
When D is detected, it is returned to the use condition processing unit 23,
The update method 34 of the update capsule 22 is activated, and the use condition in the corresponding content in the encapsulated content 21 is updated. When the data to be updated is not digital content but content usage conditions, the update process uses usage history information included in the encapsulated content 21. Usage history information is encapsulated content 2
It stores the content usage status, such as usage time, usage mode (display / change / update / delete, etc.) and the number of times of use when playing / executing 1; it is always updated when playing / executing the content. You. When the update capsule 22 includes the update use condition, the content reproduction application 20 acquires the update use condition and the use history information, and performs the calculation such as the time calculation and the number-of-times calculation in the use condition processing unit 23. , Update the use condition in the encapsulated content. After the update, the digital content is encrypted, and the information stored in the capsule is similarly encrypted.
A series of update procedures is completed by encrypting 1 and making it invisible from the outside.

FIG. 4 shows the structure of digital content produced by a content producer. The digital contents shown in the figure are digital data as contents produced by the contents creator, a reproduction function for reproducing the data, an encryption function (including a decryption function) for making it invisible from outside, and usage conditions. And a processing function for changing data and the like, and data additional information. The data additional information includes a content unique ID, a data name, copyright information of digital data, use history information, and time monitoring information.

As a method of updating the use condition in the digital content, there are a method of updating on the content storage server 1 and a method of updating on the user terminal 2.

FIG. 10 is a diagram showing the principle of updating the use conditions on the content user terminal 2. The detailed method will be described later.

FIG. 5 shows the configuration of the encapsulated content 21 and the update use condition capsule 22. The encapsulated content 21 is an interface 2 for updating with the outside.
4, the method storage unit 28, the data storage unit 26, the in-capsule storage information 29, which are invisible from the outside,
The method storage unit 28 includes a validity verification unit 37 that verifies the validity of the content to be updated. The method storage unit 28 includes an external public method storage unit 28A that can be referred to from outside and a private method storage unit 28B. The external public method storage unit 28A includes a search method 31. The data storage unit 26 includes an interface 26A operable from the private method storage unit 28B and a plurality of digital contents 2.
6B.

FIG. 6 is a detailed configuration diagram of the encapsulated content. The in-capsule storage information 29 is composed of a group of included content unique IDs, a capsule unique ID, and method storage information. The digital content storage unit 26 is also called a data storage unit, and includes a plurality of digital contents 26B produced by a plurality of content producers.

The update use condition capsule 22 shown in FIG.
Is an interface 25 that can be referred to from the outside, a method storage unit 30 that is invisible to the outside, and a data storage unit 2
7 and a validity verifying unit 38 for verifying the validity of the use condition to be updated. The method storage unit 30 includes a public method storage unit 30A that can be referred to from the outside and a private method storage unit 30B. Public method part 3
The search method 36 and the update method 34 are included in OA. The data storage unit 27 is a private method storage unit 3
The interface 27A is operable from the interface 0B and a plurality of update usage conditions 27B.

FIGS. 7 and 8 are explanatory diagrams of a method of updating the use conditions on the content storage server 1 and redistributing them to users.

The content storage server 1 includes a content storage unit 11, a processing unit 12, and a control unit 13. The processing unit 12 includes a use condition recognition unit 12A, a use condition calculation unit 12B, and a time measurement unit 12C. The usage condition recognition unit 12A recognizes the user's personal information and device information, and calculates the usage conditions in the usage condition calculation unit 12B together with the usage conditions requested by the content provider and the creator. In accordance with the request, the use condition is reconstructed in accordance with the result of the time measurement processing unit 12C, and is delivered to the user.

In the system shown in FIG. 1, an encapsulated content 21 requested by a content user is acquired from the content storage server 1 and a content reproduction application 20 capable of reproducing the encapsulated content on the user terminal 2 is started. At this time, the content storage server 1 issues usage condition information that can use the encapsulated content 21. At this time, the user sends user information requested by the content provider and the creator to the content storage server 1, and the storage server 1 generates a use condition based on the information in the content storage server processing unit 12. , Deliver to the user.

User terminal 2 with new distribution conditions
The above-described method of reconstructing the encapsulated content is performed by a method similar to the updating method in the user terminal 2.

FIG. 9 is a diagram showing a method of retrieving a target encapsulated content for registering a target content and updating a use condition on the content storage server 1, and FIG. 10 is an explanatory diagram of a use condition update on the user terminal 2. It is. The content produced by the content producer is distributed from the producer terminal 3 to the content storage server 1 via the network 4. The delivered content is stored in the content storage unit 11, and the usage conditions to be given to the encapsulated content 21 and the digital content are invisible from the outside by the usage condition creation unit 12 </ b> D, and are included in the encapsulated content 21. The processing unit 12 includes a use condition creation unit 12D for creating use conditions, a use condition calculation unit 12B for reconstructing the use conditions when the use conditions are updated, and a use condition addition creation unit 12
E. When the content creator or the content provider wants to change the usage conditions for the content, only the usage conditions are distributed to the content storage server 1,
The use condition creation unit 12D in the processing unit 12 extracts the encapsulated content unique ID and the digital content unique ID from the delivered use condition, specifies the digital content to be updated, decrypts the use condition, and outputs the result. It is passed to the use condition calculation unit 12B. The use condition calculation unit 12B performs condition calculation of the existing use condition and the update use condition based on the use history information, and reconstructs the use condition. Thereafter, in the use condition adding / creating unit 12E, newly added conditions and functions, conditions to be deleted, functions and the like are extracted, the use conditions are reconstructed and encrypted, digital contents are reconstructed, and the contents are stored in the contents storage unit 11. accumulate. The use condition update of the digital content included in each encapsulated content on the content storage server 1 is also performed by a method similar to the update method on the user terminal 2.

The program for realizing the method for updating the use condition of the encapsulated content according to the present invention, and the structures of the encapsulated content, digital content, and the use condition capsule are readable by a computer or the like, such as a floppy disk, a hard disk, and a ZIP. , A CD-ROM, a DVD, a CD-R, and a CD
-It can be provided by storing it in a magneto-optical storage medium typified by RW, MO, etc., an IC storage medium typified by a compact flash, a smart media, a memory stick, or the like.

[0044]

As described above, according to the present invention,
In an environment where content with usage conditions is distributed,
After distributing the content to the user terminal, it becomes possible to update the usage conditions according to the intention of the content creator and the content provider.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a digital content distribution system according to an embodiment of the present invention.

FIG. 2 is a sequence diagram illustrating a method of dynamically updating usage conditions of encapsulated content.

FIG. 3 is a diagram for explaining an updating method in a content user terminal.

FIG. 4 is an internal configuration diagram of digital content.

FIG. 5 is a configuration diagram of an encapsulated content and a use condition capsule for update.

FIG. 6 is an internal configuration diagram of a distributed encapsulated content.

FIG. 7 is an explanatory diagram of use condition capsule delivery.

FIG. 8 is an explanatory diagram of updating a use condition on a content storage server.

FIG. 9 is an explanatory diagram of creating an update use condition.

FIG. 10 is an explanatory diagram of updating a use condition on a user terminal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Content storage server 2 Content user terminal 3 Content creator terminal 4 Network 11 Content storage unit 12 Processing unit 12A Usage condition recognition unit 12B Usage condition calculation unit 12C Time measurement unit 12D Usage condition creation unit 12E Usage condition addition creation unit 13 Control Part 20 Content reproduction application 21 Encapsulated content 22 Update capsule 23 Usage condition processing part 24, 25 Interface 26, 27 Data storage part 26A, 27A interface 26B Digital content 27B Update usage condition 28 Method storage part 28A External public method storage part 28B Private method storage unit 29 Capsule storage information 30 Method storage unit 30A Public method storage unit 30B Private method storage unit 31, 36 Search method 32, 35 Proof method 33 processing method 34 update method 37, 38 validity verification unit 101 to 108 step

Claims (15)

[Claims]
1. A system in which an encapsulated content storage server and a user terminal are connected via a network, wherein a use condition updating capsule for realizing an update request of a content creator is generated and generated on the encapsulated content storage server. At the time of distribution, on the encapsulated content storage server and on the user terminal that purchased the encapsulated content, the use condition or the storage position of the encapsulated content whose content is to be updated is specified, and further included in the encapsulated content. A method for dynamically updating a use condition of an encapsulated content in which a storage location of digital content to which a use condition is added is identified, the validity of the use condition or the content to be updated is verified, and the use condition or the content is updated. .
2. Upon receiving a use condition update request from a content creator, a storage location of the encapsulated content stored on the encapsulated content storage server is registered on the encapsulated content storage server. At the same time, indexing digital content unique information represented by the encapsulated content unique ID and the digital content unique ID included in the encapsulated content,
2. The method according to claim 1, wherein the storage location of the digital content whose use condition is to be updated is specified by referring to the stored digital content index information.
3. To identify the user terminal that has purchased the encapsulated content, obtain a network address and a mail address of the user terminal, create distribution destination index information, and hold the index information on the encapsulated content storage server. The method of claim 1.
4. A user terminal receives an update use condition distribution request from a content creator, and uses a correspondence relationship between an encapsulated content unique ID and a digital content unique ID as content storage position information, and the user terminal uses Specify the storage location of the encapsulated content to be updated in the
The method of claim 1.
5. A correspondence relationship between a digital content unique ID and storage location information is created at the time of starting a content application by using inclusion information, a digital content unique ID, and an update method in the encapsulated content, and the digital content is stored based on this. The method of claim 1, wherein the location is determined.
6. The method according to claim 1, wherein arithmetic processing is performed based on usage history information including existing usage conditions and update usage conditions.
7. The use condition updating capsule according to claim 1, wherein the information identifies a digital content to be updated represented by a digital content unique ID, a validity verification function of the updating capsule, and an update capsule. A usage condition updating capsule including a usage condition and data, a method for searching for encapsulated content to be updated, and a search method for searching for included data.
8. A use condition update capsule generated on the storage server according to claim 1, wherein the change target digital content unique ID and encapsulation are made invisible to prevent direct access from outside. It has a content unique ID, an update use condition, and an interface that can invoke a method that can refer to the invisible information, and reproduces the content distributed on the user terminal so that it can be executed on the user terminal. Use condition update capsule that can be executed by application.
9. The digital content created by the content creator according to claim 1 is made invisible from the outside, and a plurality of digital contents are collectively encapsulated to directly make the contents of the included digital content invisible. In addition, the unique information of the digital content is similarly made invisible, and at the same time, the encapsulated content has an interface with a method that can directly refer to the unique information, and has index information that can be referred to in the digital content. Included encapsulated content.
10. The encapsulated content according to claim 5, wherein the invisible content information is invisible, cannot be referred to from the outside, is included, the included digital content unique ID, the digital content reproduction method, and the invisibility. Encapsulated content having an interface that can invoke a method that can refer to the extracted information, an update usage condition, and information for verifying the validity of the content.
11. The use condition updating capsule according to claim 7, further comprising means for verifying the use condition to be updated and the validity of the content.
12. The encapsulated content according to claim 9, further comprising means for verifying a use condition to be updated and a validity of the content.
13. A system in which an encapsulated content storage server and a user terminal are connected via a network, wherein a use condition update capsule for realizing an update request of a content creator is generated and generated on the encapsulated content storage server. A procedure for specifying a storage position of the encapsulated content whose use condition or content is to be updated on the encapsulated content storage server and on the user terminal which purchased the encapsulated content when the content is distributed; Causes the computer to execute a procedure for specifying a storage position of the digital content to which the included use condition is added, a procedure for verifying the validity of the use condition or the content to be updated, and a procedure for updating the use condition or the content. Usage condition dynamic change program A recording medium recording the beam.
14. A function for verifying the validity of an update capsule by storing information for specifying a digital content to be updated typified by a digital content unique ID, an update use condition, and data, and searching for an encapsulated content to be updated. A recording medium storing a use condition update program for causing a computer to execute a method for use and a search method for searching for included data.
15. A unique digital content I to be changed, which is made invisible to prevent direct access from outside.
D, a recording medium storing a use condition update program for storing an encapsulated content unique ID and an update use condition, and causing a computer to execute an interface capable of starting a method capable of referring to the invisible information.
JP24168299A 1999-08-27 1999-08-27 Dynamic updating method of use condition of capsulated content and recording medium where dynamic update program is recorded Pending JP2001067408A (en)

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