CN101366089A

CN101366089A - Apparatus and method for playback of digital content

Info

Publication number: CN101366089A
Application number: CNA2007800019646A
Authority: CN
Inventors: 爱须英之; 伊藤聪
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 2006-01-05
Filing date: 2007-01-05
Publication date: 2009-02-11

Abstract

There is provided with a digital content playback apparatus which generates new digital content by replacing a content part in digital content by an other content parts, including: a storage to store license conditions defined for the content parts in the digital content, each of which includes at least a replacement permission condition and a replacement target specification condition, a specifying unit configured to allow a user to specify a replacement source content part as a content part to be replaced, and a replacement target content part as a content part for adding to the digital content for replacing the replacement source content part, and a verifying unit to verify whether license conditions of content parts in the digital content and the replacement target content part would be satisfied when replacing the replacement source content part in the digital content by the replacement target content part.

Description

The apparatus and method of playback of digital content

Technical field

The present invention relates to be used for the digital content playback apparatus and the method for editing digital contents, according to generating new digital content for the license information that allows the commercial content of multimedia rated condition of editor.

Background technology

In recent years, many DRM (digital rights management) have been developed as the technology of protecting digital copyright.Particularly to business digital content, for example (,) film or music, because the tight demand to preventing that digital content from duplicating, the copyright protection characteristic provides very sane mechanism, the user can't use for their individual generate and appreciate the secondary content.

Under these circumstances, international standardization activity also carries out, such as ISO/IEC 21000 (MPEG-21) just is devoted to the distribution and the management of various forms of digital contents.In MPEG-21; be used for expressing by combination be connected the compound language of contents that a plurality of content parts constitute (DIDL: the numeric item declarative language) and the right express language (REL) that can describe licence flexibly just in standardization, and protect the framework of the compound content rights that constitutes by a plurality of content parts to be in suitable status.Visible " Information Technology-Multimedia Framework (MPEG-21)-Part5:Rights Expression Language; 2004 " (the infotech multimedia framework (MPEG-21) of list of references, the 5th part: right representation language, 2004).

Equally, for imprinting under the situation that commercial content on the medium, that provide for DVD player of future generation can not be provided, say technically, the pre-prepd content of playback verily, and this content can be divided into ingredient, can also when playback, they be reconfigured use.Figure 12 represents an example of the implementation method of the DVD of future generation that AACS (high access content system) studies.In the medium 101 that comprise commercial content, the entity of media content comprises the content part that is called as object video.According to be called as playback list, can control the script that timing is carried out in playback, these object videos are used as content after the complete combination to carry out playback or duplicates.Playing list is described as script, can control some detailed problems, such as the display position on the start time of each object video of playback, playback order, synchronized playback, screen or the like.

The licensing terms of each object video (service regeulations) is described in TUF (title usage file).Each object video is all encrypted, and the licensing terms of each object video all checked when executable operations (such as playback), if licensing terms is met, just is decrypted with decruption key and comes playback according to playing list.

The player 102 of medium 101 is connected to the server 103 of organize content via network, acquisition is recorded in the licence of the DI_2 in the medium 101, and DI_3 downloaded to temporary storage 104 so as with it as and be recorded in the works that other object videos in these medium are grouped together originally and used, perhaps use the stream that conduct and other object videos are grouped together and the DI_5 that provides, so just can access than type of service more flexibly in the past.The object video that also secondary content (captions or sound) can be used as type.The playing list of default use is to write down in the media in advance, but also can request server 103 creates new playing lists or allow to make amendment, then the playing list of the up-to-date establishment of playback on player 102.

The details of above-mentioned technology can be referring to " AACS Introduction and Common CryptographicElements Preliminary Draft Revision 0.90,14 April 2005 " (the preliminary draft revised version 0.90 of high access content system brief introduction and encryption principle commonly used).

Allowing the user to generate new playing list helps to create the secondary content by the order that object video is combined as content components or change playback video object.But then, copyright has been subjected to infringement, so just may become the secondary content of having ignored content author's original intent.This is the subject matter of commercial content.

In order to address this problem, begun to attempt in TUF, will limiting the part that the information description of revising playing list becomes licensing terms at commercial content.Employing can make the general description of right condition comprise basic right expression to the description of the right representation language (REL) that above-mentioned explanation is extended.Propose that in JP-A 2006-099645 (KOKAI) permission will replenish the part that relation condition is described as being licensing terms, this replenishes other objects that must comprise together when concerning the object video of having specified in the content that adopts up-to-date establishment.

But, for commercial content, more the situation of typicalness is, the user wishes to make local the modification by changing some scene, music or captions, so that the variant of enjoy content, rather than the video editing instrument (nerds) that functions of use is complete as those tedious people comes the actual modification content.Content possessor also wishes to have reality can not weaken the mechanism of works integrality.Playing list also strict control carries out the timing of playback to each object video, thus allow to lack the user of knowledge replace easily or rearrange the object video with different playback duration or characteristic may generate can't playback content.

Summary of the invention

According to aspects of the present invention, provide digital content playback apparatus, partly generated new digital content by one or more content parts that digital content comprised are replaced with one or more other guides, this device comprises:

Be designed to store the content memorizer of a plurality of content parts;

Be designed to the license information storer of store licenses information, this license information is described as the licensing terms of these content part definition, and each condition comprises at least one the replacement allowance condition in the following condition and replaces the target specified requirements:

Replace the allowance condition, stipulate whether this content part can be replaced by another content part,

Replace the target specified requirements, when replacement allowance condition is " replaceable ", specify to can be used as the content part of replacing target candidate person, and

Replenish relation condition, when using the other guide part that must be comprised in the digital content, specify this content part,

The content part selected cell, be designed to allow the user that the replacement source contents in the content part (comprising some content part in the content memorizer) of this digital content partly is appointed as the content part that should be replaced, and partly be appointed as and add this digital content to for replacing this replacements source contents content part partly with replacing object content

Confirmation unit is designed in the time should replacing source contents and partly replace with this replacement object content part, confirms that can content part and this replacements object content licensing terms partly in this digital content be met,

The content generation unit is designed to when this confirmation unit assert that condition has satisfied, and partly replaces to this replacement object content and partly generates new digital content by replacing source contents; And

The content playback unit is designed to the new digital content that playback generates.

According to aspects of the present invention, provide the playback of digital content method, this method replaces with one or more other guides by the one or more content parts that will comprise in this digital content and partly generates new digital content, and this method comprises:

The content memorizer that is designed to store a plurality of content parts is provided, and

Be designed to the license information storer of store licenses information, this license information is described as the condition demonstrate,proved of these content part definition, and each condition comprises at least one the replacement allowance condition in the following condition and replaces the target specified requirements:

Replace the allowance condition, define this content part and whether can replace by another content part,

Replace the target specified requirements, when replacement allowance condition is " replaceable ", specify target candidate person's content part as an alternative, and

By the user replacement source contents in some content part (comprising some content part in the content memorizer) of this digital content partly is appointed as the content part that should be replaced, and partly be appointed as and be used to add to this digital content for replacing this replacements source contents content part partly with replacing object content

In the time should replacing source contents and partly replaced with this replacement object content part, confirm that can content part and this replacements object content licensing terms partly in this digital content be met,

When confirming that the result assert that condition has satisfied, partly replaced with this replacement object content and partly generated new digital content by replacing source contents; And

The new digital content that playback generated.

According to aspects of the present invention, digital content playback apparatus is provided, playback first digital content and first license file, wherein first digital content comes playback to be recorded in the interior content part of CD according to the playback controls that is used for the control content replay segment in proper order, first license file comprises that a plurality of license information sections are illustrated as the licensing terms of content part definition, and this device comprises:

Reading unit is designed to fetch the identifying information of putting control sequence, first license file, first digital content, obtain information and these content parts of the position of the playback controls order that will be edited thereon from this optical disk reading;

Edit cell is designed to

Visit the position shown in this information,

Obtain the playback controls order and second license file that to be edited according to the identifying information of the identifying information of playback controls order and first digital content, second license file comprises that the one or more content parts in one or more these content parts of license information Duan Laiwei describe licensing terms

Selection has the content part of license information section, and these license information sections are described link is permitted and allowed in link between these content parts condition, and

With the link of selected content part being added to the playback controls order that will be edited, so that the condition that the link described in the license information section of selected content part obtains to permit is satisfied;

Storer is designed to store the playback controls order and second license file edited by this edit cell; And

Playback unit is designed to partly come playback second digital content according to the playback controls order and second license file edited by edit cell according to playing back content.

Description of drawings

Fig. 1 is a width of cloth functional block diagram, and expression is according to the structure of the digital content editing/playback reproducer of first embodiment of the invention;

Fig. 2 is a width of cloth process flow diagram, represents the entire process flow process of digital content editing/playback reproducer shown in Figure 1;

Fig. 3 represents an example of license information;

Fig. 4 is the width of cloth process flow diagram that the processing details of internal receiving part component selections unit is described;

Fig. 5 represents to replace an example of content candidate choice menus;

Fig. 6 is a width of cloth process flow diagram, describes the processing procedure of licence confirmation unit and playing list modify instruction maker;

Fig. 7 is the width of cloth process flow diagram that the processing details of S702 among Fig. 6 is described;

Fig. 8 is an example, the licensing terms of the object video that expression simple playback inventory reflection and this playing list are contained;

Fig. 9 represents the example (example 1) that playing list is revised;

Figure 10 represents an example (example 2) of playing list modification failure;

Figure 11 represents an example of modify instruction table;

Figure 12 is an example, the implementation method of the DVD of future generation of expression AACS (advanced access content system license management person) research.

Figure 13 is an integrally-built width of cloth functional block diagram of expression example 2;

Figure 14 is the overall flow figure of example 2;

Figure 15 represents an example of content data structure;

Figure 16 represents an example of playing list data structure;

Figure 17 A and Figure 17 B have represented the example that service regeulations are described;

Figure 18 represents the example that the service regeulations among the default TUF are described;

Figure 19 is a width of cloth reflection, represents the service regeulations situation among second embodiment;

Figure 20 represents the execution details of the service regeulations among Figure 19;

Figure 21 represents to describe the integrally-built functional block diagram of the 3rd embodiment;

Figure 22 represents the example that service regeulations are described;

Figure 23 represents the situation of the service regeulations among the 3rd embodiment;

Figure 24 represents the execution details of the service regeulations among Figure 22;

Figure 25 is the width of cloth process flow diagram that the expression licence is differentiated the detailed process of process;

Figure 26 represents the example that service regeulations are described;

Figure 27 represents the example that service regeulations are described; And

Figure 28 represents an example of the editor's implementation among the 4th embodiment

Embodiment

[first embodiment]

Fig. 1 is a width of cloth functional block diagram, and expression is according to the structure of the digital content editing/playback reproducer of the first embodiment of the present invention.The function that this digital content editing/playback reproducer is realized can be by making executive program or adopting hardware cell to realize.

Digital content editing/playback reproducer 201 comes the original digital content of reading and recording in medium according to user's operation by content reading unit 202, perhaps downloads content part from external server 203 via network 214.The content that digital content editing/playback reproducer 201 will read from these medium and partly store original contents storer (database) 204 into from server 203 downloaded contents.

More particularly, the content that reads from these medium comprises a plurality of object videos, includes the TUF (title use file) and the playing list information of the license information of each object video.The license information of each object video is stored in original contents license information storer (license information storer) 209, playing list information is stored in original contents playing list information-storing device 210, and the data of each object video then are stored in original contents entity information storer 211.On the other hand, partly comprise the object video of represent content part entity and the license information of these object videos from server 203 downloaded contents.This license information is stored in original contents license information storer 209, and the data of object video are stored in original contents entity information storer 211.

Content part selected cell 213 in the licence resolution element 205 generates the information about following two parts object video: a part of object video can be replaced by other object videos in the object video that is comprised in the content edited in addition, another part object video is that content part selected cell 213 also generates the license information of each object video in the original contents license information storer 209 according to the playing list candidate that add recently, that be used to replace these object videos of content edited in addition.Content part selected cell 213 shows the information that is generated in content playback/interface unit 208.

The user comes designated user to wish that the object video and the user that replace with other object videos wish to add for the object video that replaces these object videos via content playback/interface unit 208 recently according to the information that shows on content playback/interface unit 208.

Licence confirmation unit 212 in the licence resolution element 205 is confirmed: if replace, can the licensing terms that be included in after replacement is finished so described in the license information of each object video in this digital content be met.And, confirm that also if necessary, can the licensing terms of user's appointment, that will be replaced by other objects so object video be met.The licensing terms of an object video comprises a plurality of conditions (referring to Fig. 3) that will describe the back.

Playing list modify instruction maker 206 generates playing list modify instruction information, when the licence confirmation unit confirmed that the licensing terms of each object video will be met, playing list modify instruction information just indication was revised the playing list that will be edited.

Playing list generation unit 207 generates new playing list according to playing list modify instruction information, and the playing list that will generate recently stores fresh content playing list information-storing device 215 into.

Content playback/interface unit 208 is put the object video that is stored in the original contents entity information storer 211 back and forth according to this fresh content playing list order.

Fig. 2 is a width of cloth process flow diagram, represents the entire process flow process of digital content editing/playback reproducer 201 shown in Figure 1.

At the beginning, original contents storer 204 content data also store each object video that comprises in the reading content (original contents) into original contents entity information storer 211, store the license information of each object video into original contents license information storer 209, and the playing list information stores is arrived playing list storer 210 (S301).Except this locality was present in content in these medium, content was also externally in the server and via network download.And as mentioned above, content part is downloaded from server 203, and object video can be stored in original contents entity information storer 211, and license information can be stored in original license information-storing device 209.

Then, the inventory of user in being stored in original contents playing list information-storing device 210 or select the playing list (S203) that to be edited the new playing list in being stored in fresh content playing list information-storing device 215.Licence resolution element 205 reads the license information (S303) of each object video that will use in selected playing list from original contents license information storer 209.

Then, just permit condition, replace the target specified requirements and select specified requirements to determine automatically according to the replacement in the license information of each object video that is read will be to the configuration (S304) of the replacement content candidate choice menus of user's demonstration for the content part selected cell 213 in the licence resolution element 205.Content part selected cell 213 represents determined replacement content candidate choice menus (S305) via content playback/interface unit 208 to the user.The user selects the user to wish some object video of being replaced by other object videos in the digital content that will be edited, and designated user wishes to add the object video (S305) for replacing these object videos.These processes (S304, wait until the back and be illustrated by details S305).

Then, licence confirmation unit 212 determines, if whether the replacement of these object videos can violate licensing terms (S306) according to the finishing like that of user's appointment.In other words, if confirm to have done replacement, whether this replacement can encroach on the licensing terms of replacing each video content that comprises in the digital content of back.But, if unlike S304 and S305, show replacement content candidate choice menus to the user, and just allow the user specify user in this digital content to wish to adopt object video that other object videos are replaced and user to wish the new object that adds arbitrarily, can confirm that also can the user wish to adopt the licensing terms (particularly replace the allowance condition, replace the target specified requirements and select specified requirements automatically) of the object video that other object videos are replaced be met.The details of process S306 is waited until the back and is illustrated.

When the situation of violation licensing terms occurring ("Yes" of S307), the situation (S308) of licensing terms has taken place to violate in licence resolution element 205 to user's circular by content playback/interface unit 208.If the situation ("No" of S307) of licensing terms do not occur violating, playing list modify instruction maker 206 just generates playing list modify instruction information, and 207 of playing list generation units generate new playing list (S309) according to playing list modify instruction information.Playing list generation unit 207 stores newly-generated playing list into fresh content playing list information-storing device 215 (S309).

Content playback/interface unit 208 adopts the playing list of fresh content to come playback fresh content (S310) according to user's instruction.When the user wishes further to edit certain part fresh content ("Yes" of S311), with regard to return course S302.

Fig. 3 is an example, the expression object video 102 license information described in licensing terms.

This licensing terms comprises object video ID, replaces the allowance condition, replaces the target specified requirements, replenishes specified requirements, replenishes relation condition and select specified requirements automatically.

Object video ID is the identifier of unique identification video object.It does not describe ID, but describes URI.

Replace the allowance condition and be identification whether possible the object video shown in the object video ID replaced with other objects flag 0 (impossible) or 1 (possibility).

Replace the target specified requirements and enumerate the ID that can be used as the object video of replacing target candidate person.When replacement allowance condition is 0 (impossible), replaces the target specified requirements and just be omitted.Under the situation of this example, the replacement target candidate person of object video 102 is

object video

1002 or 1032.

Additional specified requirements is that identification replenishes flag 0 (not existing) or 1 (existence) whether relation condition has been defined.

The ID of the object video that must use when additional relation condition is set forth in object video shown in the object video ID that uses this digital content.When additional specified requirements was 0 (not existing), additional relation condition was omitted.Under the situation of this example, when using object video 102, two

object videos

2002 and 5002 must be used among the same content.

Automatically selecting specified requirements is flag 0 or 1, when the object video shown in the object video ID was replaced with other objects, whether whether identification allows was used as object video as the replacement target (value is 1) that will be selected automatically or allows user oneself to specify this object video (value is 0).Whether in other words, select specified requirements to specify in automatically allows under the situation that does not have user instruction the object video shown in the object video ID is replaced with another object actually.When this replacement allowance condition is 0 (impossible), select specified requirements to be omitted automatically.

In the license information of Fig. 3, except above-mentioned condition, can also describe other conditions, such as the object video term of validity that can be used, be illustrated in the flag that whether exists temporary storage or expression whether can duplicate in the terminal.

Fig. 4 is a width of cloth process flow diagram, process (S204, details S305) in the expression content part selected cell 213.

Content part selected cell 213 is at first searched the automatic selection specified requirements of each used in the playing list that will be edited object video, and extracts and to select the ID (S501) of specified requirements for (promptly allow by the direct appointment of the user) object video of " impossible " automatically.

Then, search the replacement target specified requirements of the object video that has extracted, be each Video Object Extraction of having extracted ID of target candidate person's object video (S502) as an alternative.

Generate then and replace content candidate choice menus, on menu, adopt video data to show permission each object video, and adopt these video datas to show object video (S503) with the replacement target candidate person of these object video correspondences by the direct appointment of user.

At last, show via content playback/interface unit 208 and to replace content candidate choice menus, and allow user specifies to wish that the object video replaced by other object videos in the digital content that will be edited and user wish to add again the object video (S504) for replacing these object videos.

Fig. 5 represents to replace an example of content candidate choice menus.

In Fig. 5, the left side shows be with the digital content that will be edited in the corresponding display button of object video used (more particularly, be that to select specified requirements automatically be the object video of " impossible "), the right side shows is and the corresponding display button of object video of the candidate of left side object video as an alternative.For example, original captions 2, captions 2A or captions 2B (notes and commentary) can be selected as captions 2.If do not press, with regard to default selection and the corresponding original video object of left button by any right button.Below, the user is also referred to as " specifying the object video of thing as an alternative " at the object video of right side selection.

We suppose, when original contents storer 204 is via content reading unit 202 or server 203 content data or content part, read text or image on the button, and their storage inside are the video data that is associated with the ID that selects specified requirements for each object video of " impossible " automatically.Under the situation of offhand video data, with regard to display video object ID itself.And the display format that allows the user to select can comprise various forms, such as check key, the other drop-down menu of button.

Below, employing Fig. 6 to Figure 11 describes the process (S306 to S309 of Fig. 2) in licence confirmation unit 212 and the playing list instruction generator 206 in detail.

Fig. 6 is a width of cloth process flow diagram, the details of the process of expression licence confirmation unit 212 and broadcast modify instruction maker 206.

At first, licence confirmation unit 212 extracts those licences affirmation still uncompleted object videos (S701) in the object video of being appointed as alternative by the user via content playback/interface unit 208.Then, " the determining whether to add the modify instruction table process of (Figure 11) " that will describe below 206 execution of playing list modify instruction maker (S702).

" if determine whether to add the modify instruction table process " failure ("No" of S703), just can't carry out playing list and revise (S704) to user's circular, if success ("Yes" of S703) just determines that the licence of all object videos of designated thing as an alternative confirms whether to finish (S705).If do not finish ("No" of S705), just return S701, if finish ("Yes" of S705), playing list generation unit 207 just generates new playing list (S706) according to the information on the information of modify instruction table and the playing list that will be edited (original playing list).

Fig. 7 is a width of cloth process flow diagram of the process details of expression S702.

At first, playing list modify instruction maker 206 is searched the modify instruction table.Figure 11 is an example of modify instruction table.The modify instruction table is a form, keep to replace the ID that the allowance condition be all object videos of " replaceable " (replacing the ID of source object video), replaces the ID (replacing target video object candidates person's ID) of the object video described in the replacement target specified requirements of source object video and the ID of replacement target video object.The territory that we suppose to replace the target video object ID is blank at the beginning.In the end in the modify instruction table of state (the modify instruction table after the "Yes" of the S705 of Fig. 6), being stored in the replacement target video object of replacing in the target video object ID territory is exactly up-to-date adding in the digital content for replacing the object video that these replace the source object video.If the source of replacement object video still continues to be used in new digital content, the ID that replaces the source object video just is stored in the territory of replacing the target video object ID.For instance, the modify instruction table of assumed initial state is generated by content part selected cell 213 here.

Search the modify instruction maker 206 search modify instruction tables of modify instruction table and seek the replacement source object video (S801) that those its replacement target video object candidates person comprises the object video of designated thing as an alternative.If there is no these replace source object video ("No" of S802), and this process just stops as procedure failure.And when the replacement source object video of finding among the S801 has been determined ("Yes" of S803) will be replaced the target video object and replaced by other the time, this process also stops as procedure failure.When this process stops as procedure failure, just enter the S704 of Fig. 6.If do not pinpoint the problems ("No" of S803), specifying as an alternative by the user, the ID of the object video of thing just is received in replacement target video object ID territory (S804).

Then, discern whether there be additional specify (S805) according to the additional specified requirements in the licensing terms of the replacement target video object of in S804, inserting, if exist to replenish and specify ("Yes" of S805), just extract the object video (S806) of the supplementary target in the relation condition as a supplement, and iteration is called " determine whether can add the modify instruction table process " and is added object video (S807) again.The process of the process fundamental sum S702 of S807 is identical.When it in " determine whether can add process " during failure ("No" of S808) to the modify instruction table, this process just stops as procedure failure.If success ("Yes" of S808), whether all object videos of just determining designated target as a supplement again all treated (S809), if finished processing ("Yes" of S809), " determine whether can add the modify instruction table process " just is confirmed to be success, this process turns back to calling program (being S702), if and do not finish processing ("No" of S809), just return S806.

Fig. 8 is an example, the licensing terms of the object video that expression simple playback inventory image and this playing list are comprised.

Playing list is the script that timing is carried out in the playback of control of video object, but it is simplified here, is represented as along time shaft and arranges object video according to playback sequence.In this example, image is different object videos with captions, and 4 object videos constitute a scene together.For example, 4 object videos 101,102,201 constitute a scene with 202.

In this example, the object video of hatching (8 altogether) is described to " possibility " (" replaceable ") in replacing the allowance condition.And, in the object video of these hatchings, have only with the

object video

103 and 107 of bold box mark and selecting to be described to " impossible " in the specified requirements automatically.In other words, object

video

103 and 107 is parts that user oneself selects from aforementioned replacement content candidate choice menus, forbids being replaced by other object videos without user instruction.Other object videos 104,108,203,204,207,208 can be replaced automatically according to the additional relation condition of any object video (for example object video that will be added except that object video 103,107), perhaps remain unchanged.

Fig. 9 represents the example (example 1) that playing list is revised.

Here suppose that user command replaces with object video 1003 with object video 103.So the processing of being carried out with playing list modify instruction maker 206 by licence confirmation unit 212 just produces an instruction and the object video in the

original playing list

104 and 203 is changed into the object video 1004 and 2003 (referring to the S807 of Fig. 7, the "Yes" of S808) that will use object video 1003 just must use.And, also produce an instruction and the object video in the original playing list 204 is changed into the object video 2004 (referring to the S807 of Fig. 7, the "Yes" of S808) that must use together.As a result, just generated new playing list, wherein, 4 object videos 103,203,104,204 in the original playing list are replaced by

object video

1003,2003,1004 and 2004 respectively.

Figure 10 represents an example (example 2) of playing list modification failure.

Here suppose that user command replaces with object video 1007 with object video 107.In this case, to check that at first can become must be with the

object video

1003,1008 and 2007 (seeing the S807 of Fig. 7) that uses object video 1007 to use.For instance,, must keep the consistance of story, so just can replenish the designated object here (being between scene 2 and scene 4) between the scene of this interim separation because in some scene.According to check result, because the user does not make the instruction of replacing object video 103, so when object video 103 is replaced with object video 1003, just violated licensing terms (the automatic selection specified requirements of object video 103 is " impossible "), so just refusal generates new playing list (seeing the "No" of the S808 of Fig. 7).In other words, when replacing the allowance condition, replace the target specified requirements and selecting specified requirements to determine whether to allow to replace these object videos automatically, this replacement just is " impossible " by identification.In attached generation, illustrate, and the modify instruction table of Figure 11 above-mentioned is just corresponding to the example of Figure 10.

In this example, if the user orders simultaneously object video 103 is replaced with object video 1003, licensing terms (service regeulations) just may be met.

Like this, replace with the other guide part by some content part that will constitute original digital content by user's operation, and keep content author's original intent (integrality of content) to a certain extent simultaneously, just can adopt simple mode to edit the new digital content of generation.

[second embodiment]

In " AACS HD DVD and DVD Pre-recorded Book revision 0.91 " (high access content system HD DVD and DVD prerecording handbook, version 0.91), defined and be used for read-only optical disc of future generation (such as HD DVD: the content protecting standard high definition digital universal disc).In this standard, announced mechanism, wherein being stored in the content that can not rewrite in the medium not only can verily carry out playback in predetermined playback mode simply, and can carry out playback with different back methods by downloading content playback control information or content service condition.An example as relevant with protecting standard describes below digital content playback apparatus, therein, can generate the secondary content and carry out playback from the digital content HD DVD of being recorded in compact disk standards of future generation etc.

Figure 15 represents the general picture of the content format of HD DVD.In CD of future generation, be depicted as such as control informations such as playback sequence and content part arrangements and be playing list 3001.In whole playing list 3001, having described will be by the link information of the content part of playback.Be included in each content part in one group of content part 3002, that linked from playing list 3001 and all be linked to separately service regeulations collection.The service regeulations collection comprises 0 or a plurality of service regeulations (license information), has described detailed condition (licensing terms) in each service regeulations.For instance, service regeulations can be described with right representation language (for example using MPEG-21REL).Each service regeulations collection is that (title uses file to the license file of preparing according to playing list: TUF) 3003 ingredient.Unique playing list title (being " 001 " in this example) has been described in TUF3003, can unique identification playing list and the corresponding relation of TUF.For example, in playing list " 001 ", the content part Vo1 that playback at the beginning links from element V1, but before carrying out this playback, the service regeulations 1～3 that comprised in the service regeulations collection 1 that confirm to be associated with content part Vo1.

To CD of future generation, can playback with this same Zhang Guangpan on the different content of content of being stored, its mode is from network downloading and playing inventory again and corresponding TUF rather than the content of downloaded stored on same Zhang Guangpan, then playing list and the TUF that downloads is bundled into the content part that is stored on this CD.

But, from the angle that prevention is changed, need take steps to stop the playing list of having downloaded to be modified with relevant TUF.Why will take this to stop step is because the following fact: the mechanism that also lacks dielectric imposed limits now can only be carried out editor in the scope of not violating content possessor intention.For the content enterprise that the multi-usage of using single source and nearest demand to increase is day by day originated, this step that prevents has hindered their variation.For instance, even when utilizing content part, revise the application just can realize and also will be under an embargo by only the playing list of representing whole playback control information being made some, for example the order of replacing the playback education content according to the progress of classroom instruction perhaps uses movie contents to generate the music video montage for the sound channel that drives the picture background according to consumer taste.

One of important feature of this embodiment is to have realized the function of editing within content possessor intended scope in the following way:

In the medium as read-only optical disc of future generation, comprise:

1) identifying information that playing list template (editor's playing list) and the combination that allows content part in these medium to be imported into default TUF are wherein discerned;

2) by using conducts such as link reference the mode of the content part importing editor playing list of these medium to be come the information of given content part; And

3) when importing, specify the information that how to import content with above-mentioned additional relation,

Obtain combinations thereof according to above-mentioned identifying information,

This editor's playing list of editor in the scope that satisfies the contained service regeulations of default TUF, and

Should be bundled into this editor's playing list by default TUF.

In this default TUF, the service regeulations of operable content part in the playing list that is generated recently by template have been described.Like this, when the undesirable content part of content possessor is imported into this playing list, just can prevent that these content parts are by playback because lacking service regeulations.

Figure 13 is a width of cloth functional block diagram, the one-piece construction of expression digital content playback apparatus according to a second embodiment of the present invention.As shown in figure 13, this digital content playback apparatus comprises editing equipment 1001, content reading unit 1002, playing list storer 1017 and playback apparatus 1020.This digital content playback apparatus is linked to remote server (external server) 1003 via network 1025.Database 1004 also is linked to this remote server 1003.

Editing equipment 1001 has the function that generates new playing list.Editing equipment 1001 comprises user I/F1010, editor's playing list request unit 1011, original contents storer 1012, content part selected cell 1013, licence confirmation unit 1014 and playing list generation unit 1016.

The function of content reading unit 1002 provides the data that are used as data.From the CD 1023 of its reading, the server URI 1005 of the URI (unified resource identifier) that represents remote server 1003, the content ID 1006 and the content 1024 of identification content 1024 have been write down at content reading unit 1002.Content 1024 comprises playing list 1007, a plurality of content part 1008 and TUF (title use file) (first license file) 1009.

Remote server 1003 has according to the request of editing equipment 1001 to be picked up the rope necessary data and sends it to the function of editing equipment 1001 from database 1004.In database 1004, stored editor's playing list 1021 and default TUF (second license file) 1022.

Playing list storer (p-storer) 1017 have the playing list permanent storage that will be in the editing equipment 1001 generates be new playing list 1018 and will this default TUF permanent storage the function that is new TUF 1019.

Playback apparatus 1020 has the function that reads necessary information and carry out playback for content playback from content reading unit 1002 and playing list storer 1017.In other words, playback apparatus 1020 reads new playing list 1018 and new TUF 1019 from playing list storer 1017, and according to new playing list 1018 content part in the playback CD 1023 in order.When playback, determine that whether each content part satisfies the described licensing terms of each service regeulations that new TUF 1019 each contained service regeulations are concentrated, if do not satisfy, does not just carry out the playback of each content part.Playback apparatus 1020 also reads playing list 1017 and TUF 1009 from content reading unit 1002, and according to playing list 1007 content part in the playback CD 1023 in order.When playback, determine that whether each content part satisfies the described licensing terms of each service regeulations that TUF 1009 each contained service regeulations are concentrated, if do not satisfy, does not just carry out the playback of each content part.

Figure 14 is a width of cloth process flow diagram, the entire process flow process that digital content playback apparatus carried out of expression Figure 13.

When the user started editing equipment 1001, original contents storer 1012 just read the playing list 1007 that is recorded in the CD 1023, and acquisition and playing list 1007 corresponding TUF 1009.

Then, whether original contents storer 1012 confirms to exist in resulting TUF 1009 description to permit being linked to the service regeulations collection (2002) of new playing list, and if there is no (2002 "No") just stop this process.

Otherwise, if in TUF 1009, exist the service regeulations collection (2002 "Yes") that link is permitted is described, generate new playing list (2003) according to the user via the input that user I/F 1010 is carried out with regard to decision.

Editor's playing list request unit 1011 receives the title (2004) of the playing list that is read by content reading unit 1002 from original contents storer 1012.Editor's playing list request unit 1011 also obtains server URI 1005, content ID 1006 (2004) via content reading unit 1002 from CD 1023.

Notice that ContentID (content ID) is meant the information of discriminating digit content, for example, the ID of identification bag perhaps also can use the ID that is grouped together with disc serial number, can discern individual CD.

Editor's playing list request unit 1011 is connected to the remote server 1003 that indicates among the server URI that is obtained, and the transmission a piece of news asks to send and this content ID and a corresponding cover editor playing list (such as blank playing list) and the default TUF (2005) of playing list title.

Remote server 1003 search and this content ID and playing list title corresponding this cover editor's playing list and its default TUF, and send it to content part selected cell 1013 (2006).

Content part selected cell 1013 shows the content part with service regeulations collection to the user, and this service regeulations collection comprises permits (2007) to the link of editor's playing list.

The user selects the user to wish to add to the content part V (2008) of editor's playing list from shown content part.

The service regeulations that comprised among the licence confirmation unit 1014 identification TUF 1019 are concentrated and are described the service regeulations that link is permitted, and are the operation acknowledgement service condition (being illustrated after treating) of this content part, and carry out the resolution process and satisfy service condition (2009).The details of this special processing will be illustrated in the 3rd embodiment, still, also can use with the application processing described in the relevant JP-A2006-099645 (KOKAI) of application arranged earlier.JP-A 2006-099645 (KOKAI) does not announce at the application's priority date.In this JP-A 2006-099645 (KOKAI); to comprising the compound content of a plurality of content parts; the service condition of keeping following relation (1) and (2) by explanation representative in service regeulations has proposed the method for the minimal structure that the protection original author wishes, the restriction relation between the content part that will be worked out when this relation is the repeated use content part.

(1) replenishes relation: when a content is repeated to use, force to reuse the relation of other given contents; And

(2) exclusive relation: when a content is repeated to use, forbid reusing the relation of other given contents.

If in process 2009, the resolution process is successful (2010 "Yes"), playing list generation unit 1016 just receives general data from licence confirmation unit 1014 and (describes the data of the conventional relationship that generates the necessary content part of playing list, details are treated the back explanation), can be added to editor's playing list (2011) to the link of these content parts.

Be repeated to carry out from the processing of process 2007 to 2011, till editor finishes (2012 "No").

When editor finishes fully (2012 "Yes"), playing list generation unit 1016 just will be edited the playing list of end and deposit playing list storer 1017 in addition as new playing list 1018 and new TUF 1019 (2013) with the corresponding default TUF of this playing list.

Figure 16 is an example, among expression Figure 15 with the data structure of the playing list of XML format description.

In Figure 16, the playing list of " 001 " by name shows that content part is according to the sequential playback of Vo1, Vo2, and Vo3 and Vo4 are with method of synchronization playback subsequently.In fact and metadata (draw) playback together, for example metadata as the identifying information of corresponding service regeulations collection Vo1 comprises rest image, animation, voice data etc. to Vo4 and is used as content part.

Figure 17 A and Figure 17 B represent the example with " carrying out the linked operation condition " of MPG-21 REL format description, just as service regeulations shown in Figure 15.

In MPG-21 REL, the chief component of service regeulations (permission) comprises " licensee (responsible official) ", " operation of permission (right) ", " object content (resource) " and " service condition (condition that link is permitted) ".

Figure 17 A explanation, licensee 5001 is granted does " beLinked " (by linking) operation (operation 5002 through allowing) to content part " Vo3 " (object content 5003), this operation is that link is added the operation of new playing list, and the condition of granting this link is comprised in the service condition 5004.In MPG-21 REL, service condition generally can be represented with logical and (AND).In the example of Figure 17 A, service condition 5004 comprises two independent conditions that link: time limit condition 5005 and position specified requirements 5006.Specified requirements 5006 usefulness character string informations in position are described, and expression should be added the position of the link in editor's playing list to.

Figure 17 B is an example, wherein also allows content part " Vo2 " is carried out " beLinked " operation.Service condition also further is subjected to the restriction (replenishing relation condition 5007) of importing content part " Vo4 " when adding the link of " Vo2 ".In this example, as interim constraint, " Vo4 " designated conduct " before " is so that it is in " Vo2 " playback before.Also specified " link " (link) type to come a kind of mode that imports as to playing list, in other words, illustrated to link and carry out just as " Vo2 ".

Figure 18 represents an example of these service regeulations, and these service regeulations are with the ingredient of the default TUF of MPEG-21 REL format description among Figure 13.Described herein is the content of permitting operation, and in this operation, content part is used as the part of new playing list and comes playback.In the example of Figure 18, described " play " (broadcast) and operated the content playback that allows " Vo2 ".

Note, in default TUF, only the content part that can use has been described service regeulations in the playing list that generates recently.Will prevent that so the undesirable content part of content possessor is by playback, even owing to not existing any service regeulations with these content part correspondences to make these content parts be imported into playing list, this content possessor is the employed material of limited subscriber effectively also.

Figure 19 and Figure 20 are the block diagrams of expression editor's practical implementation.

In Figure 19, stored playing list, content part Vo1/Vo2/Vo3/Vo4 and " TUF 1 " of " 001 " by name in the CD, wherein " TUF 1 " has comprised rule set URS1, URS2, URS3 and the URS4 corresponding to each content part simultaneously.In playing list " 001 ", all link between each element of playing list and the content part, so that playback is carried out according to the order of Vo1, Vo2, Vo3 corresponding to each element.The service regeulations of Vo2 (UR1) are stored among URS (service regeulations collection) 2 and the UR1, illustrate that 7002 have following meaning (practical illustration is seen Figure 17 B):

Vo2 permission under following condition (1) and (2) will link and add new playing list:

(1) adds link simultaneously to Vo4; And

(2) Vo4 playback before Vo2.

Simultaneously, the service regeulations of Vo3 (UR1) are stored in URS3 and UR1, illustrate that 7001 have following meaning (practical illustration is seen Figure 17 A):

Vo3 allows to connect the new playing list of adding.

Figure 20 is illustrated in the scheme when adopting the CD comprise the described content of Figure 19 to generate new playing list.That is:

The first step: adopt the editor's playing list (blank playing list) and the default TUF that receive by remote server 1003 to begin the playing list editor;

Second step: demonstration can be added to content part Vo2, the Vo3 of this playing list;

The 3rd step: Vo2 is elected to be the content part that the user wishes to add to this playing list;

The 4th step: for condition is permitted in the link of satisfying Vo2, search Vo4 also identifies the service regeulations (suppose that the condition as the time limit is satisfied) of Vo4.According to qualification result, generate be conditioned can be by the playing list of Vo4, Vo2 sequential playback, and link between each element in this playing list (order is Vo4, Vo2) and each content part Vo4, Vo2; And

The 5th step: new playing list and default TUF are saved to the playing list storer.

Like this, adopt the content part that is stored in the CD, just can generate the new playing list that only allows whole playback.For instance, adopt and recorded film originally, can generate this class data of the music video montage that is mainly used in the cinemusic playback as the content part in the CD of data.

Equally; viewpoint from protection and use content; the effect that can obtain is to allow the user to generate can search the playing list that can not rewrite content that is stored in the CD, and can allow this generative process to only limit to carrying out in the scope of content possessor intention.

[the 3rd embodiment]

Figure 21 is a width of cloth functional block diagram, and expression meets the one-piece construction of the digital content playback apparatus of the 3rd embodiment.For the parts identical with the structure shown in Figure 13 of second embodiment all mark identical label.Except the structure of Figure 13, non-existent fresh content part 9001 and the service regeulations collection 9002 that comprises these content service regeulations in the CD have also been stored in the database 1004.For instance, supposed this situation here: in the service regeulations of the content part of certain Zhang Guangpan, have explanation, this explanation with the content part in the database 1004 also must from new playing list in addition link definition as the condition that allows link.So in Figure 21,1014 requests of licence confirmation unit are carried out content via 1025 pairs of remote servers of network 1003 and are picked up rope.When the content part outside the terminal (digital content playback apparatus) was linked, in most of the cases, this content part all can be downloaded to this terminal, and link can be added to will be to the position of its download.In this case, the content part in the database 1004 must be used as content part 9003 and copy to playing list storer 1017.But, also may in the service regeulations of the content part of CD, write an explanation, this explanation will directly be linked to outside network address as a condition.

Figure 22 represents an example of the service regeulations that comprise among the described TUF 1009 of Figure 21, and this rule is with MPEG-21 REL format description, and allows to add operation.

In Figure 22, content part " Vo2 " permission " beLinked " is operated.Restriction (replenishing relation condition 10001) is suggested as service condition, and promptly to " Vo2 " when linking, content part " Vo5 " should be imported this playing list simultaneously.In this example, " before " specified as interim restriction, so that " Vo5 " is in " Vo2 " playback before.Equally, as a kind of mode that imports to playing list, specified " store_and_1ink " (storage and link) type.In other words, illustrate that " Vo5 " is stored in the local storage (p_storege), and the position of preserving it is added the operation of link.Here Vo5 is in network address http://www.vod.com/0001/001/ADV_OBJ/Vo5/, and Vo5 downloads from this URI.The position of preserving the Vo5 that has downloaded is file: ///p_storeage/ADV_OBJ/VO5/.

Note, although described the mode that the mode that imports by link is used as the importing content part here, but in addition, also can consider with the copy of content part directly import this playing list mode, spread put or the local replica situation under the mode of designated conversion method (for example reduce resolution), so, further their invariant of define and represent.Simultaneously, under situation about importing in " link " mode, if the address of this content part is with identical to the URI of the position of its link, just can omit expression to the position of its link＜resourceLocator (resource localizer) element (in Figure 22, on 10001＜resourceLocator name=file: ///dvddisc/ADV_OBJ/Vo2/).

Figure 23 and Figure 24 are the block diagrams of example of expression editor's practical implementation.

In Figure 23, stored playing list, content part Vo1/Vo2/Vo3/Vo4 and " TUF 1 " of " 001 " by name in CD, wherein " TUF 1 " has comprised service regeulations collection URS1, URS2, URS3, the URS4 corresponding to each content part simultaneously.In playing list " 001 ", set up between each element Vo1, the Vo2 in the playing list, Vo3 and the content part corresponding and linked with each element, make it can be by the sequential playback of Vo1, Vo2, Vo3.The service regeulations of Vo2 (UR1) are stored among URS2 and the UR1, illustrate that 10001 have following meaning (practical illustration is seen Figure 22):

Vo2 is added to new playing list according to following conditions permit with connection:

(1) Vo5 downloads from remote server, and link is added to will be to the local position of its preservation; And

(2) Vo5 playback before Vo2.

And the service regeulations of Vo3 (UR1) are stored among URS3 and the UR1, illustrate that 10003 have following meaning (practical illustration is seen Figure 17 A):

Vo3 allows connection is added to new playing list.

On the other hand, the service regeulations of Vo5 are stored in the remote server, illustrate that 10002 have following meaning:

Vo5 allows playback.

Figure 24 is illustrated in the operating scheme when adopting the CD comprise the described content of Figure 23 to generate new playing list.Promptly

The first step: the editor who adopts the blank playing list (editor's playing list) that receives from remote server 1003 and default TUF to begin playing list;

Second step: demonstration can be added content part Vo2, the Vo3 of this playing list to;

The 3rd step: Vo2 is elected to be the user wishes the content part that adds;

The 4th step: permit condition for the link of satisfying Vo2, download Vo5.Generation is conditioned to such an extent that can carry out the playing list of playback according to the order of Vo5, Vo2, sets up to link between each element (order be Vo5, Vo2) of this playing list and each content part Vo5, Vo2;

The 5th step: URS5 is downloaded to the playing list storer, and URS5 is added to default TUF; And

The 6th step: this new playing list, default TUF and content part Vo5 are stored in the playing list storer.

Figure 25 is a width of cloth process flow diagram, and the licence that is illustrated in Figure 14 is differentiated the treatment scheme of carrying out in the process 2009.In this example, adopt Figure 17 A, Figure 17 B and the described data of Figure 22, and keep the consistance of data element name and other guide.

At first, with service regeulations that selected content part V is associated in, obtain to comprise service regeulations (license information) G (20001) that add operation (=" BeLinked ").

Then, from license information G, obtain service condition C (20002), if service condition C comprises except that＜derivationConstraint〉independent condition C ' (20003 "Yes") (origin restriction), just make about the condition of C ' and confirm (20004).For instance, this condition confirms condition to be confirmed with exactlying, such as to the affirmation of the independent condition 5005 of available period of restriction of Figure 17 A.Experience, this affirmation comprises from the timer acquired information of this equipment and with information and this condition that is obtained and comparing.In MPEG-21 REL, defined various independent conditions and their confirmation method, use them just can describe more flexibly.

If made the affirmation result (20005 "No") who negates in process 20004, service regeulations just are not met, and this process just is terminated.

On the other hand, if in process 20004, made sure affirmation (20005 "Yes"), about content part V＜resourceLocator Name (title) attribute L just be added to general data (20006).Here, general data is meant to describe and generates the necessary conventional relationship of playing list.For instance, the general data that generates Figure 16 example is write with the listings format of Lisp type, for example:

(Vo1?Vo2(Vo3?Vo4))

Then, check at＜derivationConstraint〉in whether exist＜resourceInclusionList (resource comprises inventory) (20007), if there is no (20007 "No") are then differentiated successfully, this process termination.

On the other hand, if existence＜resourceInclusionList〉(20007 "Yes"), just continue to enter next process.

At first, check the value (20008) of InclusionType (containing type) attribute, if it is to carry out the local copy type and will add link (" store_and_link " in 2008) to this copy as shown in figure 22 that this value shows, so＜resourceInclusionList each element V ' and just be downloaded to playing list storer (20009) so that enter next step corresponding to the service regeulations of each element V '.

If the value of InclusionType attribute is the link type shown in Figure 17 B (20008 " link "), do not enter next step with regard to not downloading.

Check the property value of temporalRelation (temporary relation) below, if right＜resourceInclusionList〉each element V ', this value is expression synchronous " simultaneously " (20010 " simultaneously "), so＜resourceLocator name attribute L ' just be added to the L of general data (20011) synchronously.

And, if this property value is that request is at " before " of playback before (before) (20010 " before "), so right＜resourceInclusionList〉each element V ',＜resourceLocator〉name attribute L ' just be added to (20012) before the L of general data.

And, if this property value is request " after " (afterwards) (20010 " afterwards ") in playback afterwards, so right＜resourceInclusionList〉each element V ',＜resourceLocator〉name attribute L ' just be added to (20013) after the L of general data.

Simultaneously, right＜resourceInclusionList〉content part listed, each service regeulations (licensing terms) exist naturally.So to each element V ' (20014), implementation 20001 to 20013 similarly.Like this, right＜resourceInclusionList〉all elements V ', V ' is distributed to V, and the iteration exequatur is differentiated process 2009 (20015).In the said process sequence, just when the service condition of all the elements part was all made sure affirmation, whole resolution process just was counted as merit.

So, adopt the content part be stored in the CD and the content part in the remote server, just can generate the new playing list that only allows whole playback.For instance, so just can when the content part in reusing the CD of recording film originally, insert movie trailer.

Although in above-mentioned the 3rd embodiment, described the situation that has fresh content part in the remote server, database can actual distribution in a plurality of positions, and, can distribute according to each content ID or according to each data type.

And, embodiment as this embodiment, the application service that the function of editing equipment can be used as in the remote server realizes, in this case, terminal (digital content playback apparatus) can include only content reading unit, playing list storer and playback apparatus, and can be manufactured into low cost terminals.

In addition, also can record CD and come off-line (not via network) operation by editing playing list and default TUF.

[the 4th embodiment]

In the second and the 3rd embodiment, new playing list is by obtaining blank CD and generating the link of selected content part is added to this playing list.On the contrary, in this embodiment, describe that the playing list that duplicates non-blank-white is edited and used as the situation of the template that generates new playing list.The one-piece construction of the functional block diagram of this embodiment is identical with the second or the 3rd embodiment, and is also basic identical with the second or the 3rd embodiment with the step of remote server exchange message.Only adopt accompanying drawing that difference with the second or the 3rd embodiment is described below.

Figure 26 and Figure 27 represent an example of service regeulations, and these service regeulations comprise " name information of the playback list control edit script (editor's playing list) that identification is just being inquired about " with the MPEG-21REL format description.

In Figure 26, this licence is allowed to carry out the link to playing list p1001 is added " belinked " operation of content part Vo4.Here, being clipped in " isPartOfs " (is ... part) between declaratives 2601 just corresponding to " information of the playback list control edit script (playing list) that identification is just being inquired about ".This illustrates expression, is not that the link from the playing list with specific names p1001 is nonlicet.For instance, from the playing list with other titles of nearest acquisition, can not carry out any link to content part Vo4.The method that the identification playing list is described can comprise the whole bag of tricks, such as the explanation of ID or file name, the perhaps explanation of URL.

Duplicate by remote server 1003 that ready prepd (non-blank-white) playing list is edited and with it when generating the template of new playing list, preestablish and be used for the rule of title of this editor's playing list of unique affirmation.For instance, to add version number nominally at original playing list.And a part that can be by expressing title with the standard expression way or ID and the playing list characters matched string that obtains and will generate are discerned.For instance, if discern playing list " p100v* " with " isPartOf ", all playing lists that obtain and generate from original playing list can be considered to satisfy the playing list of these conditions, for example " p100v1 ", " p100v2 " so.In addition, the process that can also prepare to have predetermined title or ID is duplicated the editor's playing list that obtains.

In Figure 27, this licence is had the right of " beCut " (by cutting down) operation by permission, can delete the link to the content part Vo2 that has linked from p1001 like this, and stops the use of Vo2.Be clipped in declaratives 2701 between " isPartO fs " corresponding to " address information of the playback list control edit script (editor's playing list) that identification is just being inquired about ".This illustrates expression, and except being positioned at the link of ad-hoc location from the playing list deletion with specific names p1001, any process all is unallowed.For instance, though content part Vo2 the playing list outside the p1001 linked and used by redundant, any playing list that does not also allow to edit except above-mentioned p1001 is deleted content part Vo2.

In addition, in Figure 27, specify the condition of target candidate person's content part as an alternative also to describe with the explanation that is clipped between " replacementResourceList " (replacing source inventory), point out, if content part Vo2 is not used, just must use content part Vo4 or Vo5 to replace Vo2.Notice that " beCut " not necessarily is defined and will uses with " replacementResourceList ".And " beLinked " operation and Remove Links withdraw from service " beCut " operation that link all allow.

Figure 28 is a width of cloth block diagram, an example of expression editor's practical implementation.Stored playing list, content part Vo1/Vo2/Vo3/Vo4 and " TUF 1 " of " p1001 " by name in a CD, wherein " TUF 1 " has comprised service regeulations collection URS1, URS2, URS3 and the URS4 corresponding to each content part simultaneously.In this playing list, link, so that according to the sequential playback of Vo1, Vo2, Vo3.Suppose in Vo2, to have specified the service regeulations of Figure 27, in Vo4, specified the service regeulations of Figure 26.Be the basic step of when editor's playing list, carrying out below:

The first step: duplicate editor playing list and the default TUF of back for editor from remote server 1003 receptions;

Second step: the content part Vo2 that demonstration can be deleted from this playing list and the candidate Vo4, the Vo5 that are used to replace content part Vo2;

The 3rd step: the designated conduct of Vo2 deleted content part in this playing list, the candidate of the designated content part as an alternative of Vo4 Vo2;

The 4th step:, add link and change so that use Vo4 on the position that Vo2 is used in playing list according to the condition that allows to add to the link of Vo2, Vo4; And

The 5th step: new playing list and default TUF are saved in the playing list storer.

The process that link in the 4th step changes comprises two class processes: deletion adds the link to Vo4 then to the link of Vo2 on the same position of playing list.So, unless in licence confirmation unit 1014, confirmed to allow deletion to the link of Vo2 and allow to add link to Vo4, the replacement between Vo2 and the Vo4 can not carry out.

Notice that being used to refer to tailor-made condition for the content part of replacing target candidate person also can be with being used for the other guide part is imported simultaneously condition (the replenishing relation condition) appointment of the second and the 3rd described playing list of embodiment.In this case, to the process of licence confirmation unit 1014, can adopt with first embodiment in the similar process of licence resolution element 205.

For those those skilled in the art, be easy to expect other advantage and modification.So, the present invention it widely aspect be not limited to shown in this paper and described specific detail and representational embodiment.Correspondingly, can make various modifications and do not depart from the scope of claims and their the defined present general inventive concept of equivalents.

Claims

1. a digital content playback apparatus replaces with one or more other guides by the one or more content parts that will be comprised in the digital content and partly generates new digital content, comprising:

Be designed to store the content memorizer of a plurality of content parts,

Be designed to the license information storer of store licenses information, this license information is described as the multinomial licensing terms of described content part definition, and each condition comprises the replacement allowance condition in the following condition at least and replaces the target specified requirements:

Whether this this content part of replacement allowance conditional definition can be replaced by another content part,

This replaces the target specified requirements when this replacement allowance condition is " replaceable ", specifies target candidate person's content part as an alternative,

Additional relation condition specifies in this content part that must be comprised in when using another content part in the digital content,

The content part selected cell, be designed to allow the user to comprise in this digital content that the replacement source contents in the content part of some content parts in this content memorizer partly specifies as the content part that should be replaced, and specify the replacement object content partly to be used as to add to this digital content for the content part of replacing this replacement source contents part

Confirmation unit is designed in the time should replacing source contents and partly replace with this replacement object content part, and can the licensing terms of confirming the content part in this digital content and replacing the object content part be met,

The content generation unit is designed to confirm as when satisfying being identified the unit, partly replaces with this replacement object content and partly generates new digital content by replacing source contents; And

2. according to the device of claim 1, wherein the licensing terms of the content part in this content memorizer comprises automatic replacement allowance condition, and whether this condition is specified and allowed to replace this content part without user instruction, and

This content part selected cell with replace among the content part of this digital content the allowance condition be " replaceable ", automatically replace the allowance condition for the content part of " disapproving " as an alternative the candidate of source contents part represent to this user, and will by the specified content part of the replacement target specified requirements of replacing source contents part candidate as an alternative object content candidate partly represent to this user.

3. according to the device of claim 2, wherein, in the time should replacing source contents and partly replaced with this replacement object content part, if after replacement, be not comprised in the digital content after the replacement by the specified content part of the additional relation condition of some content parts in the digital content, this confirmation unit just confirms whether to exist following content part in this digital content: it is replaced the target specified requirements and has specified by the specified content part of additional relation condition of violating the content part that replenishes relation condition, and its automatic replacement allowance condition is " can permit ", if there is such content part, use content part to replace this content part by replenishing the relation condition appointment with regard to determining.

4. playback of digital content method, this method replaces with one or more other guides by the one or more content parts that will be comprised in this digital content and partly generates new digital content, and this method comprises:

Be designed to the license information storer of store licenses information, this license information is described as the licensing terms of these content part definition, and each licensing terms comprises the replacement allowance condition in the following condition at least and replaces the target specified requirements:

Replenish relation condition, specify in another content part that must be comprised in when using this content part in the digital content,

Specify in replacement source contents in some content parts that comprise some content part in the content memorizer in this digital content by the user and partly be used as the content part that should be replaced, specify the replacement object content partly to be used as to be added in this digital content for the content part of replacing this replacement source contents part

Confirm that can content part in this digital content and this replacements object content licensing terms partly be met when source contents partly replaces with this replacement object content part should replacing,

Owing to confirming that the result is defined as " satisfied ", partly replaced with this replacement object content and partly generated new digital content by replacing source contents; And

The new digital content that playback generated.

5. according to the method for claim 4, wherein the licensing terms of the content part in this content memorizer comprises the automatic replacement allowance condition whether appointment does not have user instruction to allow to replace this content part yet, and

This appointment comprise with in the content part of this digital content its replace allowance condition for " replaceable ", it replaces the allowance condition automatically and represents to this user for the content part of " disapproving " candidate as this replacements source contents part, and will replace the specified content part of the replacement target specified requirements of source contents part candidate as representing to this user for object content candidate partly by this.

6. according to the method for claim 5, wherein, in the time should replacing source contents and partly replaced with this replacement object content part, if in the digital content among the specified digital content of content part after not being comprised in replacement after the replacement of the additional relation condition of some content parts, this affirmation just comprises whether affirmation exists following content part in this content memorizer: it has been specified by the specified content part of additional relation condition of violating the content part that replenishes relation condition for the target specified requirements, and its automatic replacement allowance condition is " allowance ", if there is such content part, use content part to replace this content part by replenishing the relation condition appointment with regard to determining.

7. digital content playback apparatus, come playback first digital content by the content part that is recorded on the CD according to playback controls order and the first license file playback, this playback controls is used to the playback of control content part in proper order, this first license file comprises that a plurality of license information sections are described as the licensing terms of described content part definition, and this device comprises:

Reading unit, be designed to from this CD read the identifying information of this playback controls order, this first license file, this first digital content, about the information and the described content part of the position of the playback controls order that obtains to be edited;

Edit cell is designed to:

Visit the position shown in this information,

Obtain the described playback controls order and second license file that to be edited according to the identifying information of the identifying information of this playback controls order and this first digital content, this second license file comprises that the one or more content parts in the described content part of one or more license information Duan Laiwei describe licensing terms

Selection has the content part of following license information section: the condition that these license information sections are described the allowance that adds link and allowed to link between these content parts, and

To add the playback controls order that to be edited to the link of selected content part, so that allow the condition of the link described in the license information section of selected content part to be satisfied;

Storer is designed to store playback controls order and this second license file of being edited by this edit cell; And

Playback unit is designed to by partly coming playback second digital content according to playback controls order and this second license file playing back content of being edited by this edit cell.

8. according to the device of claim 7, wherein, allow the condition of the adding link described in the license information section of selected content part to comprise that there is the address in selected content part on CD, and

This edit cell will be used as the link to selected content part in proper order to the playback controls that the link adding of the address on this CD will be edited.

9. according to the device of claim 7, wherein, the condition that allows to be added in the link described in the license information section of selected content part comprises adding simultaneously and adds the link of the part of the other guide outside the selected content part and the address of described other guide part

When the license information section of described other guide part is described the allowance that adds link and is allowed to add the condition of link, this edit cell will add the playback controls order that will be edited to the link of described other guide address partly, so that the permission adding condition described in the license information section of described other guide part is satisfied.

10. according to the device of claim 9, wherein, the address of described other parts is the address of the address on the CD, any recording medium or the address of external server.

11. device according to claim 9, wherein, the condition that allows to be added in the link described in the license information section of selected content part comprises the address of any recording medium or external server, address as described other guide part, and comprise the address of the memory location of indicating to store described other guide part, and

This edit cell

Address according to this recording medium or external server visits this recording medium or external server, so that download the license information section of this other guide part and this other guide part, and

When the license information section of having downloaded comprises allowance that adds link and the condition that allows adding, to add the playback controls order that to be edited to the link of the address of indication memory location, satisfied so that allow to be added in the condition of the link described in the license information section of these other parts, and added the license information section of having downloaded to this second license file.

12. according to the device of claim 9, wherein, the condition that allows to be added in the link described in the license information section of selected content part has been specified the order of selected content part of playback and described other guide part, and

This edit cell will add the playback controls order that will be edited to the link of selected content part and these other parts, so that playback sequence is satisfied.

13. device according to claim 7, wherein, the content part that this edit cell selection has following license information section: this license information section is described in by the allowance of Remove Links in the content part of adding link in this edit cell editor's the playback controls order and the condition of permission Remove Links, and from the link of selected content part being satisfied so that the condition of the link described in the license information section of selected content part is deleted in permission by deletion this edit cell editor's the playback controls order.

14. according to the device of claim 13, wherein, permission adds the condition of the conditioned disjunction permission Remove Links of link and has specified the one or more playback controls sequential identifiers that will be edited, allow adding or Remove Links, and

This edit cell is just in the playback controls order that will be edited or when having been specified by the condition that allows to add the condition of link or allow Remove Links by this edit cell editor's playback controls sequential identifiers, just adds and deletes this link.

15. according to the device of claim 13, wherein, the condition that allows the condition of this link of deletion to comprise to add other links and about will adding the other guide information partly of these other links to it, and

About will be when its license information section that adds the other guide part of these other links comprises the allowance of link and allows the condition of this link, this edit cell is deleted the link to selected content part from the playback controls order by this edit cell editor, and will be to the playback controls order of described other guide link adding partly, so that allow the condition of the link described in this other guide license information section partly to be satisfied by this edit cell editor.