JP3383793B2 - Content copy tracking management system, content copy machine, center device, and their program recording media - Google Patents

Content copy tracking management system, content copy machine, center device, and their program recording media

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Publication number
JP3383793B2
JP3383793B2 JP2000198586A JP2000198586A JP3383793B2 JP 3383793 B2 JP3383793 B2 JP 3383793B2 JP 2000198586 A JP2000198586 A JP 2000198586A JP 2000198586 A JP2000198586 A JP 2000198586A JP 3383793 B2 JP3383793 B2 JP 3383793B2
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JP
Japan
Prior art keywords
content
copy
identifier
original
id
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.)
Active
Application number
JP2000198586A
Other languages
Japanese (ja)
Other versions
JP2002016788A (en
Inventor
幸子 入江
順一 岸上
寛 藤井
秀樹 阪本
Original Assignee
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 日本電信電話株式会社 filed Critical 日本電信電話株式会社
Priority to JP2000198586A priority Critical patent/JP3383793B2/en
Publication of JP2002016788A publication Critical patent/JP2002016788A/en
Application granted granted Critical
Publication of JP3383793B2 publication Critical patent/JP3383793B2/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

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Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention
And attribute information such as copyright on each content.
A system managed by the content identifier assigned to the
System, especially when copying digital content
A component that makes it easy to track where and who went
It relates to a tenz copy tracking management system. [0002] Still images, moving images, music and text data
Distribution of digital contents such as data
Evolving. Such digital content flows
The most common issues are copyright protection and management and
How to build a mechanism to promote content use
It is ruka. To solve such a problem, each digital
Content I, which is a unique identifier for
D to digital content and its contents
Information such as search information and copyright information.
Content attribute information is unified by content ID
The construction of a system that manages information is proposed. FIG. 8 shows an outline of the content management system.
FIG. Content ID management center 100
Is a unique content ID for each digital content
And the content ID and its content
It has a function to manage the original Tents. Content Management
The database 120 stores the issued content ID 200
And the original content 210. In addition,
Content ID 200 and original content 210 must be
Managed by one content management database 120
There is no need to manage the original content 210.
Access from the content ID management center 100 by some means.
It is enough if it is accessible. [0005] Content registration device 110 and content
The user terminal 130 receives the content via the network.
Personal computer connectable to ID management center 100
Data devices. [0006] Content creators and content sellers
Those who have copyrights on digital content are
Content distribution device 11
The original digital content and the content
A registration request including attribute information necessary for registration is sent to content I
Send to D management center 100. Content ID management center
100, upon receiving a content registration request,
Issue a unique content ID to the content
The content ID and the content ID are stored in the content management database 120.
And register the original content. After that, register the content
The issued content ID or the
Digital content with content ID added
I do. [0007] The general user uses the content using terminal 130.
From the content ID management center 1 via the network
00, a content search request can be sent. Search
Upon receiving the request, the content ID management center 100
The content requested by the attribute information attached to the content ID
Searches for content and permits use for the content.
If so, the original content
Content with ID embedded ID with digital watermark
Are transmitted to the content use terminal 130. Content
In response to a content purchase request from
Also performs necessary charging processing in the content ID management center 100.
In order to transfer the ID-added content to the content
To the terminal 130. FIG. 9 shows the contents management system.
4 shows a data configuration example of a content ID. Content ID
200 is unique for each digital content
Given by center number, center number, etc.
ID center management number, content genre, tight
Attributes of copyrighted work, such as
License condition attribute, distribution history attribute, royalty distribution information
Distribution attributes such as digital signatures and digital watermark information
And information on system control attributes. The content ID 200 is the content ID
In the ID management center 100, the content management database
The content I is managed by the
D200 or part of it is from the original content 210
Digital header format for copied content
Or embedded in the content by digital watermarking, etc.
Or get stuck. [0010] Of the content ID 200 shown in FIG.
The part that actually has a unique value for each content is
ID center management number part, ID center management number
The original content 210 can be specified by
Therefore, in the following, only this ID center management number is simply referred to as
Called content ID. In this case, the content shown in FIG.
The entire ID 200 is referred to as content attribute information.
You. In particular, an ID is assigned to the original content 210.
When embedding is performed by a digital watermark or the like, the embedded information
In order to reduce the amount, the ID center management number (referred to in this specification)
Only the part of (content ID) is embedded. Digital head
Da (or sometimes at the tail or in the middle)
For example, when adding to the content by using XML (Exte
nsible Markup Language)
Information. The digital core in the above system
In the distribution of content, content is always
ID is embedded in the digital
Tents will be distributed. Therefore, distributed
Read the content ID from the digital content copy
If taken, the copy was obtained from any original content
Can be easily specified. However, in the conventional technology, the content ID
Even if there is content embedded with
Content with content, when and where
From the original content managed by the Content ID Management Center.
You can't tell if they've been done. Digital content with content ID
If the image is, for example, an image,
Copy out of analog information
Can easily be produced in large quantities. In addition,
Products can also be copied by ordinary optical copiers
it can. Such a copy will initially be
Whether content is copied from content
So you can't know. Known techniques related to the present invention include, for example,
For example, JP-A-6-22119, JP-A-2000-322
There is an "image processing apparatus" described in JP-A-53-53.
This is to ensure that the manuscript is
The digital part for identifying the original and the user etc. in the image part of
Embedded additional information of the file and made it readable
It is. However, in this technology, additional information is repeatedly updated.
It can be embedded in a manuscript by the method of multiple watermarks that can be written
It is necessary to use standard digital watermarking technology
Therefore, the additional information cannot be embedded in the original. Normal
In the case of a digital watermark of
You can add or overwrite a new watermark ID
Because you can't. In this known technique, additional information
Is directly embedded in the manuscript in the form of raw data and added
The whole information is ID-coded and embedded in the manuscript
Because the amount of information to be embedded is significantly limited.
It is difficult to centrally manage additional information
If it is difficult to change the copy right after copying the tents
There is a problem. Further, as a known technique related to the present invention,
“Electronic transparency” described in JP-A-11-7241.
Digital Content Management System Using Scarecrow "
You. This is the content stored in the microkernel in the terminal.
The monitoring program was resident and distributed all at once by broadcasting.
For raw content, for official users, for each user
Embeds individual user IDs with invisible watermarks and uses them illegally
Display a visible watermark (user name) to the user
Things. In addition, this is combined with the public key method.
ing. Further, Japanese Patent Application Laid-Open No. Hei 10-191025 discloses
Described "Device for embedding information into digital images"
There is a descrambling device and digital watermark embedding
And the device is inseparable from the
For the content that has been released,
By embedding a personal ID with a digital watermark, illegal copying
The source of the event is recognized. In addition, Japanese Patent Application Laid-Open No. 7-184609 describes
The “confidential document management device” listed
Embed information such as the person who made the copy, purpose, date and time
To make it later decipherable. However, Japanese Unexamined Patent Application Publication No.
Gazette, JP-A-10-191525, JP-A-7-17-1
The technology disclosed in Japanese Patent Application Publication No.
Track the source of a copy only for the first copy of the book
Because it embeds watermark information
From the copy of the content, make another copy
If not, who and when and where to make the second and subsequent copies
Track which copy was taken and from which copy
Can not be. Also, for example, the content is a book
In such cases, a copy of one page can be
You can't just make a copy of that. SUMMARY OF THE INVENTION The present invention solves the above problems.
Who and when to solve digital content
The history information (log information) indicating the copy made here
Includes chain information if the copy was taken from copy
Centralized management at the center and copying is repeated several times
The purpose is also to enable tracking of copies. Ma
Also, from a part of the content to a copy of the entire content
Or copy other parts of the content.
The purpose is to be able to centrally manage history information at the center
And SUMMARY OF THE INVENTION The present invention provides a content
Of the content with the content ID embedded
Read the content ID from the copy original and read it
Copy event attribute related to content ID and copy status
Content ID management via the network
Sent to the content center and the content ID management center
Embed a new content ID in the original
Means for receiving and outputting the ID-added content is provided. Also, the content ID management center has
From the content ID received from the content copy machine.
Retrieve the original content or related content
New content for the original of the acquired content
Content ID and the content ID and copy event
Attribute information or the content I received by them
D is added to the history information in the content ID management table, etc.
Information that is newly recorded and managed.
Embedded in the original of the acquired content
And sends it to the content requesting copy machine.
Means are provided. Thus, a copy of a certain content can be output.
If you want to know the location,
Content ID and the copy recorded by the content ID management center.
-By collating with information such as event attributes,
Content is copied on what content copier when
Can be tracked. According to the invention
The ID-copied contents are fingerprints, so to speak.
Think of it as something with attached content.
In addition, the content is copied by the content copying machine of the present invention.
If you make a copy of the content, you can copy the read content
Not a manuscript but a copy managed by the Content ID Management Center.
Since the original content is copied, the number of copies
The content of the copied content
And not. Whether the content is a moving image or a plurality of pages
The original copy is one of the moving images.
Content copy in the case of a page or one page
To the entire content such as scene number and page number.
Identify location information inside, and want to copy that location information
Information specifying the part is sent to the content ID management center.
A means for communicating is provided. As a result, a copy of a part of the content is
-Take out the entire original content from the manuscript and copy it
Or any page of the original from a copy of a page
You can take out and copy
You. A new content ID is assigned to the copy
Content ID management with copy event attributes
History information is recorded and stored in the center.
It is also possible to track all copy histories. Copy transmitted from content copy machine
Copy based on copy event attribute information such as machine ID
Copy permission / prohibition information for permitting or prohibiting content
By assigning to the D management center, specific content
Permit copying only for copy requests from copiers
And rejects copy requests from other content copiers.
Copy protection control for security protection.
It is possible. Further, the content ID indicated by the content ID is
Allow or prohibit copying depending on the production time and version
The copy ID information to be copied
Content created before a certain date and time
Prohibits copying of (old version content)
Can be realized. Content copy machine or content ID
At the management center, the above processing means are
Therefore, the program to realize it is read by a computer.
Portable media memory, semiconductor memory, hard disk
It can be stored in a suitable recording medium such as a disk. FIG. 1 shows an example of a system configuration according to the present invention.
FIG. Content ID Management Center 10, Con
The content registration device 30 and the content copy machine 20
Network. Content registration device 30
And the content copy machine 20 have a communication function.
It is composed of information equipment such as a sonar computer.
The content copy machine 20 is, for example, a convenience store.
A copy machine installed in a
Good. The content ID management center 10
Transmission / reception unit 11 for communication via work, digital
Content management for processing and control of content management
Management unit 12, content original and copy event attribute
Content ID issuing unit that assigns a content ID to
13. Content registration unit 1 for registering the original content
4. Content original inspection to search and retrieve original content
Search unit 15, electronically transmitting the content ID to the original content
Content ID embedding unit 16 to be embedded by
Content ID management table 1 for managing content ID
7. Content original full-scale to store and save original content
It has a storage section 18. The content ID management center 10 registers
If you can access the original content
And it is not always necessary to hold the original content directly
Therefore, the original content storage unit 18 is provided in an external device.
You can also. [0032] The content copying machine 20
D embedded content (hereinafter, content with ID)
Is read by a scanner or the like.
Image reading unit 22 to take, content from read image
Content ID detection unit 23 for detecting ID, copy event
Attribute (user ID, organization name of copy executor, copy
Machine ID, copy date, required copy quality, etc.)
Copy event attribute acquisition unit 24, requesting content source
A copy part designation part 25 for designating a part to be copied of the book,
Transmission / reception unit for communicating with the content ID management center 10
26, Information received from content ID management center 10
Output data generation unit 27 that generates output data from
Image output unit 28 for printing out output data
One. The copy original 21 is the ID of the side to be copied.
Content that is printed out on paper
It is a thing. Then copy it with a normal copier.
It may be something like a copy. The output content 29 is
This is the ID-added content of the copy result. Next, according to FIGS. 2 and 3, FIG.
The operation of the system will be described. Figure 2 shows the content
FIG. 3 shows an example of copying the entire contents.
Here is an example of copying a part. In FIG. 2, the content creator or
The distributor sends the original content from the content registration device 30.
Forty registration requests are made. The original content 40 is
Original digital copy without embedded content ID
Content. In response to a registration request, the content registration
Device 30 to the content ID management center 10
The raw data of the original Tents 40 and the content attribute information are sent.
It is. Content attribute information is the user of the producer or distributor
ID, organization name of registration executor, and content registration device 30
Information such as device ID, registration date, quality of registered content
It is. The content ID management center 10 transmits and receives
Upon receiving the registration request by the communication unit 11, the content management
User ID or device ID as required in unit 12
Authentication, and check whether or not to register the original content 40.
Check. If registration is possible, content ID issuing unit 1
3. From the center number, serial number in the center, etc.
Generate content IDs that have not been issued before
Then, the content original part 4
When the raw data of 0 is stored in the original content storage unit 18,
In both cases, the content I is stored in the content ID management table 17.
The content attribute information including D is registered. Here,
It is assumed that the executed content ID is “0001”. The content management unit 12 has a content ID
Raw data of the original content 40 by the embedding unit 16
The content ID of "0001" with digital watermark
And the ID-added content 41 is stored in the content registration device.
Send back to 30. Electronic embedding of content ID
Not a bar code or a special pattern
Alternatively, it may be performed. Content 41 with ID or its copy
User A who has obtained the ID-added content 41 ′
Copies it by the content copying machine 20A.
And The content 41 'with ID of the copy original is
Print out the contents 41 with ID on paper
The contents of the contents are converted into analog information.
You. The user A enters the copy document ID
Content 41 'to the scanner section of the content copy machine 20A
It is set and read by the image reading unit 22. Conte
The method of using the copy machine 20A is a normal monochrome or
Can be considered the same as a color copier. Content
The ID detecting unit 23 uses the digital watermark from the read image.
Read the embedded content ID. With digital watermark
The embedded information is converted to bitmap image data.
The technology for reading from the data
Therefore, detailed description here is omitted. The copy event attribute acquisition unit 24
Copy machine ID of user copy machine 20A, user of user A
Copy event attributes such as IDs are transferred to the content copy machine 2
0A setting information and user input,
6 is the content read from the ID-added content 41 '.
Information of content ID = 0001 and the acquired copy event
Attribute as a parameter 42 of the copy request.
To the ID management center 10. The content ID management center 10 transmits and receives
Copy request from the content copy machine 20A at the communication unit 11
When the content management unit 12 receives the
Using the content ID = 0001 as a key, the content ID
The logical table 17 is searched. The content ID management table 17
The corresponding content ID is registered, and the content
If the received copy event attribute indicates that the copy
If it is recorded that it is within the consent range, the content ID
The issuing unit 13 has
Content ID (0002) that has not been issued to
Issue the content ID and the copy event attribute
It is additionally described in the content ID management table 17. Also,
Describe the content ID = 0001 of the copy source manuscript
I do. The original content retrieval unit 15 receives the received
Raw of original content corresponding to content ID = 0001
Data is read from the original content storage unit 18 and
The content ID embedding unit 16 stores the raw data of the original content.
The content ID issuing unit 13 sends a copy event
New content ID = 0002
Is embedded with a digital watermark. The resulting container with ID
Content 43, as necessary, with content attribute information and output control.
Returned to the content copy machine 20A together with your information
You. In the content copying machine 20A, a transmitting / receiving unit
26, the ID-attached content 43 is received.
Of the content 43 with ID by the
Generate output data and print by image output unit 28
Out. As a result, the content ID = 0002 is embedded.
The embedded ID-added content 44 is obtained. The ID-added contents 44 are
This is a copy of Tenz 41 '
Same, but digital watermarking in a way that humans cannot distinguish
Is 0001,00.
02 is different. In addition, the ID-added content 41 ′
However, image quality deteriorates due to repeated analog copying, for example.
Even if the content ID management center 10
Content 43 with ID transmitted from
With ID of copy result
The content 44 has no image quality deterioration. Further, the ID-added content 44 or the
You can copy the ID-added content 44 '
User B obtains and user B has the ID-added content 4
4 'is copied by the content copy machine 20B
I do. The user B receives the copy document ID
Content 44 'to the scanner section of the content copy machine 20B
And press the copy button on the device. by this,
As with the content copy machine 20A, the content
ID = 0002 and copy of copy machine ID, user ID, etc.
-The event attribute is used as the parameter 45 of the copy request.
It is transmitted to the content ID management center 10. In the content ID management center 10, the
Received copy request and received content ID = 000
Searching the content ID management table 17 using 2 as a key
You. If the copy is permitted,
On the other hand, the content ID (00
03) and copy the content ID.
Added to the content ID management table 17 with the event attribute
Put on. The content ID of the copy source document is 0002
And its information is also described in the content ID management table 17.
You. Also, received content ID = 0002
, The content ID of the original is “0001”
That the original data of the content
The content ID = 0003 is embedded with a digital watermark. That
Copy the resulting ID-added content 46 to the content copy machine 2
Return to 0B. In the content copy machine 20B, the content
As in the case of the copy machine 20A, the output data generation unit 2
7, output data is generated by the image output unit 28.
With ID with embedded content ID = 0003
The content 47 is output. The content ID management table 17 includes a content
Who by content ID and who
Regarding the copy event of whether the original content was copied
Records are kept, so the ID-equipped
Even when there is content, the content ID is extracted and
Check with the recorded data of the content ID management center 10.
And the content with ID can be identified by who
To make sure that it was copied with a
Can be. Next, for example, a page is composed of a plurality of pages.
For the original content to be created, one of them
Extract any page of content from copy manuscript
An example of copying by copying will be described with reference to the example shown in FIG. The original content 50 is composed of a plurality of pages.
Suppose it was a book to be done. From the content registration device 30
Content original 50 to content ID management center 10
The process of sending and registering is described in the example shown in FIG.
Is the same as Here, "00" is used as the content ID.
It is assumed that "10" has been given. This content ID is I
Embedded in all pages of content 51 with D
You. Here, a certain user has a content with ID.
51 or its duplicated content 51 '
Hand and copy it with the content copy machine 20A
Then Content 51 'with copy manuscript ID
Prints out the content 51 with ID on paper
By converting the contents of content into analog information
It is. The user A enters a copy document with ID
Content 51 'to the scanner section of the content copy machine 20A
It is set and read by the image reading unit 22. This example
Now, the fifth copy of the ID-added content 51 '
Assume that the third page is set. The content copy machine 20A is set and
The scanned original is scanned optically and read.
Content I embedded with digital watermark from captured image
Read D. Also, the copy source in the entire content
Information indicating the position of the manuscript (in this example, the page number)
It is detected by recognition or some other means. The result
Read content ID = 0010 and page =
A request to copy event attribute information including 53 information
As the parameter 52 of the content ID management center 10
Send to The content ID management center 10
When a copy request is received from the tents copier 20A, the
Using the received content ID = 0010 as a key,
The content ID management table 17 is searched. Content ID management table
17, the corresponding content ID is registered.
Copy event attribute received as content attribute information
If it is recorded that is within the permitted copy range,
Has not been issued for a copy event
Issues a content ID (assumed to be 0011),
Content ID as the copy event attribute and the copy source
Content ID management table with content ID = 0010
17 is added. The original content retrieval section 15 receives the received
Content original corresponding to content ID = 0010
Takes 53 pages of raw data specified by parameters
Put out. The content ID embedding section 16 checks the content
New contents for 53 pages of raw data
Content ID = 0011 is embedded with a digital watermark. The result
Copying the contents 53 with the fruit ID to the contents copying machine 20
Return to A. In the content copy machine 20A, an ID
The content 53 is received and printed out.
As a result, the content ID = 0011 embedded I
The content 54 with D is obtained. This is a
A copy of only the 53rd page of the original 50
It becomes. As described above, the content copy machine 20A
Content ID and partial information such as page number
Is detected and the information is stored in the content ID management center 10.
By sending the content part,
Content ID is embedded
You. In addition, from some pages of the content,
You can take out the page and get a copy of it
You. For example, a content with ID of only 53 pages
Tsu 54 or its analog copy with ID
From the content 54 ', copy the content of the next page
If you want to get
And set it in the scanner section of the content copy machine 20B.
Press the copy button. This allows content copy
-Content ID = 0011 detected on device 20B
Is done. Whether the user is an operation panel or menu
When the user instructs a copy request for the next page, the contents I
D = 0011 and next page request information as parameter 55
To be transmitted to the content ID management center 10
Is done. In the content ID management center 10, the
Receives a copy request and receives received content ID = 001
Searching the content ID management table 17 using 1 as a key
You. Content ID = 0 from content ID management table 17
011 is the original content of content ID = 0010
Page 53, and the next page is requested.
Because the content has been
A new content ID = 0012 is assigned and the content
Content ID, copy event attribute information, and copy source
Content ID = 0011 in the content ID management table 17
Record. 54 pages of raw data of the original content
On the other hand, the content ID = 0012 is embedded with a digital watermark.
Put in. The resulting content 56 with ID is
Return to copy machine 20B. The content copy machine 20B has an ID
The content 56 is received and printed out.
As a result, the content ID = 0012 embedded I
The content 57 with D is obtained. This is a
A copy of only the 54th page of the original 50 content
It is. The ID-added copy of the original content
Extract other parts of the content from part of the content
It is possible to add a new
Content ID can be given. This copy event
Event information is recorded in the content ID management table 17 and managed.
So that the copy history can be tracked easily.
it can. Similarly, this month issue of periodicals such as magazines
From the ID-added content that has been converted to digital content,
Related components such as copying last month's content
The copy of the contents is also performed by the
It can be realized by the specification of the copy part specification part 25
It is. FIG. 4 shows the contents when the original contents are registered.
Flow of the content registration device 30 and the content ID management center 10
It is a chart. The content registration device 30 stores the data to be registered.
Digital content and its attributes (eg, user
ID, organization name of registration registrant, registration device ID, registration date
Date, registered content quality, etc.)
To the content center 10 (step S1) to manage the content ID.
Wait for a reply of the registration result from the center 10 (step S
2). The content ID management center 10
Waiting for a request from the content registration device 30 (step
Step S3), if the request is received, proceed to Step S4.
No. In step S4, the content registration device 30 sends
The raw data of the original content that has been
D original storage unit 18 in the D management center 10 (also
May be stored in an external database management device).
Next, generate a content ID that has not been issued before
And use the content ID as raw data of the original content
It is embedded with a digital watermark (step S5). That content
And the content ID together with the content attribute information.
It is additionally described in the D management table 17 (step S6). Electronic transparency
Content with ID with embedded content ID
Is sent back to the content registration device 30 of the registration request source.
(Step S7), the registration process ends. FIG. 5 shows the contents of the content copying machine 20.
It is a flowchart at the time of content copy. Content copy
-The machine 20 is set on the scanner as a copy original.
Scan the content with ID (step S1)
0). Detects digital watermarks from scanned data and copies
-Read the content ID of the original (step S1
1). After reading the content ID,
Discard the data. Next, the user ID and the organization of the copy executor
Name, copy machine ID, copy date, required copy quality, etc.
Gets the copy event attribute of user by user input
I do. In addition, if necessary,
Read the position information such as the page number. Also, if the user
Specific parts of the content or related content
If you want to copy, use a user interface such as a menu.
Enter the specified information via the Internet (step S
12). The content ID of the copy original and the acquired
Copy event attribute and content ID management center 10
To the content ID management center (step S13).
It waits for the return of the result from 10 (step S14). Con
If there is a reply from the content ID management center 10,
Determine if the ID-added content has been sent
(Step S15) If it is sent, its ID
Print out the attached content (step S1)
6). Unable to copy from content ID management center 10
Copy is stopped when the message of
And notifies the user to that effect and terminates the process (step
Step S17). FIG. 6 shows the contents ID management center 10.
It is a flowchart at the time of content copy. Content
Server ID management center 10
Waits for a request (step S20), and receives a copy request.
If so, the content ID of the original copy of the copy
From the content ID management table 17 (step
S21). The corresponding ID is stored in the content ID management table 17.
Content ID exists and the original (or
If a copy of the related content is specified,
Whether the original content of the series is registered)
If registered, the content attribute information
Whether the received copy event attribute is within the permitted range
It is checked whether it is (step S22). The original of the content
If it is not registered or it is out of scope, copy
-Send impossible message to content copy machine 20
(Step S23). The original content of the received content ID
If the registration information exists in the content ID management table 17,
If the copy event attribute is within the permitted range,
New vents that have not been issued before
A content ID is generated, and the content ID is
Embedding a digital watermark in the raw data of the original content
(Step S24). Copy the content ID
Along with the event attribute and the content ID of the copy source manuscript,
Add additional information in association with the original content ID (step
Step S25), embedding the content ID with the above digital watermark
Content with ID to content copy machine 20
It is sent back (step S26). FIG. 7 shows the structure of the content ID management table 17.
Here is an example. The content ID management table 17 contains the content
ID, content ID assigned to the original or copy
Content ID assigned to the event (copy
Event ID), and the copy execution attribute.
Information, copy original attributes, copy permission attributes, etc. are stored.
It is. Registration as information on the copy execution attribute
ID of creator or copyper, registrant or copy
-Copy showing the name of the organization to which the implementer belongs and the copied device.
-Copy of machine ID, copy date and time, resolution and number of colors, etc.
Copies such as page numbers for quality information and copy events
Position of copied content original, copy source original
Is described. Copy source copy
The content ID is sent from the content copy machine 20.
Content ID, which is the content ID
Tents ID (for the first copy from the original)
And the copy attached to the copied content
Content ID, ie, copy event ID (from the original
Other than a copy). Original copy source
By recording the content ID of
From the copy chain. Also, information on the attributes of the copy original is
The content I of the original content being copied
D. Information such as the version of the original copy or the date of creation
Information is written. As information on copy permission attributes
Is the user, department, copy machine, copy
Copy permission terms for implementation date, copy quality, etc.
Case is described. The registration of the content ID management table 17 shown in FIG.
Process of recording information
An example of the processing will be described. First, the user ID of the General Affairs Department = 032
User 1 receives a copy of “General Affairs 01” on March 3, 2000.
Register the original of 100 pages from the copy machine (terminal) and copy it.
Permission was granted only within the company. Content for this original
ID = 001 was assigned. On the other hand, if an external content copy machine
Were requested, but the copy permission conditions
No copy of the original was sent. Then, on March 4, a user of the development department (user
The ID = 0431) is the I of the content ID = 0001.
Monochrome copy of only 53 pages from content with D
Requested. Content I in the copy event of the request
D = 002, and 53 pages of the original content
Content ID = 0 with digital watermark on monochrome
02 is embedded in the copy machine of "Development D4" of the request source
Sent. On March 22, the sales department user (user I
D = 0411), but the content ID = 002 is embedded
From the 53 page copy manuscript to the next page
Request and obtain a 54 page full color copy
Was. The copy is given a content ID = 003.
Was. Copy event of content ID = 004
Indicates that the user of the manufacturing department (user ID = 0481)
54 pages embedded with content ID = 003 on the 3rd
Of the original with the content ID = 001
All pages are copied. On April 6, the original (content ID = 00
The user who registered 1) added 20 pages to it
Register a new version of the original and replace it with the original
Instructed. The new version of the original contains the content I
D = 010 was assigned. After April 6th, the sales department user
53 page copy source with embedded content ID = 002
Based on the manuscript, perform the same operation as the copy on March 22.
However, the original (content ID = 001) is already a new bar
Replaced by John's original (content ID = 010)
The original with content ID = 010 is the manufacturing department
Copying is permitted only to the copy machine of
-I couldn't. On May 3, a user of the manufacturing department (user ID
= 0481), but the content ID = 003 is embedded
Based on the 54 page copy manuscript,
When the same copy operation is performed, the original
ID = 001) for the new version of the original (content
ID = 010) has been registered, so the new version
Get a copy of the original (Content ID = 010)
Was. However, the original of the new version (content ID = 0
10) Copy permission conditions are limited to monochrome copy only
The output was a monochrome copy. this
Content ID = 011 is assigned to the copy event
Was. As described above, according to the present invention,
Who made a copy of a manuscript when and where
And the copy from which the copy was taken.
The history information is centrally managed by the center and its ID
Content or its reproduction (including grandchild copy)
The source ID of the content read from them
Can be specified. Also managed by the center
Tracing the copy chain depending on the history information
To prevent unauthorized copying
If necessary, identify the spill route and prevent subsequent spills.
Becomes possible. According to one embodiment of the present invention,
Content source consisting of multiple pages like a book
For a book, a copy of the content
Related content, such as retrieving any page in a book
Copies can be taken out. According to one aspect of the present invention, a copy source
Since the security level of the manuscript can be managed by the center,
The copy identifier obtained from the copy event attribute at the center or
Determines copy permission / non-permission based on user identifier etc.
And a specific copy machine or specific
Can be prohibited. According to one aspect of the present invention, a copy source
The time when the draft was created (document version) is managed at the center
Documents created before a certain time
(Old version documents) must be banned all at once.
Can be. That is, revocation of the document
Can be easily realized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing an example of a system configuration of the present invention. FIG. 2 is a diagram illustrating an example of copying the entire content. FIG. 3 is a diagram illustrating an example of copying a part of content. FIG. 4 is a flowchart of a content registration apparatus and a content ID management center at the time of registering an original content. FIG. 5 is a flowchart at the time of content copying by the content copying machine. FIG. 6 is a flowchart of the content ID management center when copying content. FIG. 7 is a diagram illustrating a configuration example of a content ID management table. FIG. 8 is a diagram showing an outline of the background art of the present invention. 9 is a diagram showing a data configuration example of a content ID in the system shown in FIG. 8; [Description of Signs] 10 Content ID management center 11 Transmission / reception unit 12 Content management unit 13 Content ID issuing unit 14 Content registration unit 15 Content original search unit 16 Content ID embedding unit 17 Content ID management table 18 Content original storage unit 20 Content copy machine 21 Copy Document 22 Image Reading Unit 23 Content ID Detection Unit 24 Copy Event Attribute Acquisition Unit 25 Copy Part Designation Unit 26 Transmission / Reception Unit 27 Output Data Generation Unit 28 Image Output Unit 29 Output Content 30 Content Registration Device

────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. 7 Identification symbol FI G06F 17/60 142 G06T 1/00 500B G06T 1/00 500 B41J 29/00 Z (72) Inventor Sachiko Irie Chiyoda-ku, Tokyo 2-3-1, Nippon Telegraph and Telephone Corporation (56) References JP-A-11-345261 (JP, A) JP-A-8-88756 (JP, A) JP-A-11-167596 (JP, A JP-A-2000-113066 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) G06F 17/60 142 H04N 1/387 G06T 1/00 500

Claims (1)

  1. (57) [Claim 1] A center comprising means for managing an original of each content and a content identifier for uniquely identifying each content, and means for embedding the content identifier in the original of each content. And a content copying machine connected to the center via a network and copying the content in which the content identifier is embedded, wherein the content copying machine is configured to copy all or a part of the content to be copied, Means for reading the content identifier, means for transmitting the read content identifier, information on the copy event attribute relating to the copy status including the user identifier or the copier identifier to the center, and means for outputting the content received from the center. And the center is Means for acquiring the original of the content or related content from the content identifier received from the content copier; assigning a new content identifier to the acquired original of the content; Information and original content identification
    Means for recording and managing the content in association with a child ; means for embedding a newly assigned content identifier in the original of the acquired content; means for transmitting the content in which the new content identifier is embedded to the content copier. A content copy tracking management system, comprising: 2. The content copy tracking management system according to claim 1, wherein the means for recording and managing the content identifier and the information of the copy event attribute further includes a content of the copy source content received from the terminal device. A content copy tracking management system characterized by recording and managing an identifier. 3. The content copy tracking management system according to claim 1, wherein, when the content set as an object to be copied is a part of one content, the content copy machine is configured to execute the part. Means for acquiring position information, means for inputting designation of which part of the entire content is to be copied, and means for transmitting the position information and information designating the part to be copied to the center, A content copy tracking management system, comprising: means for embedding a new content identifier in a content portion designated as a portion to be copied in the original copy of the content and transmitting the content identifier to the content copy machine. 4. The content copy tracking management system according to claim 1, wherein the center permits or prohibits copying based on information of a copy event attribute transmitted from the content copy machine. Means for storing copy permission / non-permission information to be copied, and means for transmitting information indicating the prohibition to the content copying machine when the copy permission / prohibition information indicates that the copy is prohibited. A content copy tracking management system, wherein copying is not performed when a content is received. 5. The content copy tracking management system according to claim 1, wherein the center is configured to permit or prohibit copying according to a production time or a version of each of the contents. And a means for transmitting information indicating prohibition to the content copying machine when the copy permission / prohibition information indicates that copying is prohibited, wherein the content copier receives the information indicating prohibition A content copy tracking management system, characterized in that copying is not performed. 6. The content copy tracking management system according to claim 1, wherein the embedding of the content identifier into the original of the content is performed by a digital watermark. Tracking management system. 7. A content copying machine for copying content in which a content identifier for uniquely identifying each content is embedded, means for reading a content identifier from all or a part of the content to be copied, Means for transmitting, via a network, copy event attribute information relating to a copy status including a user identifier or a copy machine identifier to a center for managing the original content and the content identifier; Means for receiving, from the center, content having a unique content identifier embedded therein and outputting the content. 8. A center device comprising: means for managing an original of each content and a content identifier for uniquely identifying each content; and means for embedding the content identifier in the original of each content, the center device comprising: Means for receiving, from the connected content copy machine, a content identifier read from all or a part of the content to be copied by the content copy machine, and copy event attribute information relating to a copy status including a user identifier or a copy machine identifier; Means for acquiring the content corresponding to the received content identifier or the original of the content related thereto, assigning a new content identifier to the acquired original of the content, and transmitting at least the content identifier and the information of the copy event attribute. , Original content identification
    Means for recording and managing the content in association with the child, means for embedding the newly assigned content identifier in the original of the content to be copied, and means for transmitting the content in which the new content identifier is embedded to the content copier. A center device comprising: 9. A recording medium recording a program for copying a content in which a content identifier for uniquely identifying each content is embedded, wherein the content identifier is read from all or a part of the content to be copied. The content identifier and the copy event attribute information relating to the copy status including the user identifier or the copy machine identifier are transmitted to the center for managing the original content and the content identifier via the network. A program recording medium for a content copying machine characterized by recording a program for causing a computer to execute a process of receiving and outputting a content in which a unique content identifier is embedded from the center. 10. A program executed in a center apparatus comprising: means for managing an original of each content and a content identifier for uniquely identifying each content; and means for embedding the content identifier in the original of each content. A copy status including a user identifier or a copy machine identifier and a content identifier read from all or a part of the content to be copied by the content copy machine from a content copy machine connected via a network. Receiving the information of the copy event attribute related to the received content, acquiring the original of the content corresponding to the received content identifier or the content related thereto, assigning a new content identifier to the acquired original of the content, and at least providing the content identifier When The copy event attribute information is used to identify the original content.
    A computer executes a process of recording and managing the content in association with a different child, embedding a newly assigned content identifier in the original of the content to be copied, and transmitting the content in which the new content identifier is embedded to the content copying machine. A program recording medium for a center device, characterized by recording a program for causing the program to be executed.
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