JP2001297570A - Editing device and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manage copyright of each material data before edition processing and to prevent falsifying them. SOLUTION: When materials are edition-processed and edition data is made and edition data is outputted to the outside while holding relation with control information for managing the materials, processing for superimposing managing information as watermark is performed for each material constituting edition data, edition data is outputted, and copyright for each material is managed. Also, when edition processing is performed for materials and edition data is made and edition data is outputted to the outside, each material constituting edition data and managing information are ciphering-processed, and falsifying materials at destination of outputted data is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an editing apparatus and method for performing editing using a material such as video and music, and adding and outputting management information such as copyright information to the edited material.

[0002]

2. Description of the Related Art Conventionally, for example, as means for embedding desired information in material data before being subjected to editing or processing, or as edited data resulting from performing editing or processing on material data, In many cases, management information such as copyright information is modulated on material data or edited data to superimpose a watermark. It is known that this watermark has a property that copyright information and the like can be easily embedded in data, but it is difficult to remove the watermark from the data. The copyright information includes a copyright owner and information indicating that copying is not allowed. As described above, the copyright management of the data to be distributed is performed by superimposing the copyright information on the data.

When the management information is superimposed by the watermark technique, a slight distortion may occur in the data on which the management information is superimposed.

[0004] For example, if management information is superimposed on music data, a slight distortion in sound quality will result. Further, even when the management information is superimposed on the image material defining the image pattern and its movement, a slight distortion occurs in the image quality. Further, for a material such as a module of a computer program, the superposition of management information similarly changes the original material.

The amount of distortion of the original data caused by superimposing the management information is proportional to the number of times the management information is superimposed.
Therefore, in order to suppress the distortion of the original data, it is desirable to reduce the number of times of superimposing the management information.

In a conventional music editing apparatus, a partial music material called a phrase is edited using a multi-track recorder. As the partial music material, for example, material data of a guitar part, material data of a drum part, and material data of a bass part are sold as package products. Each material data stored in the packaged product is a copyrighted work, and the creator has licensed the copyright to the purchaser of the packaged product in a limited manner based on the contract. The material data stored in the packaged product has been copyright-managed and copyright-protected by, for example, making a written contract to restrict resale and duplication.

[0007] The material data is often edited and processed by an editor, and as a result, a plurality of tracks are tracked down to, for example, two channels, and are often sold as sales data. In such sales data, when a track is down, a plurality of tracks are mixed, so that it is often difficult to extract material data. Therefore, in the related art, there is a very low possibility that the material data is resold and reused by a person who has not received a license for the material data.

[0008]

However, in the future, there is a possibility that data will be sold with a plurality of tracks without going down the track, and there is a possibility that material data can be easily retrieved. When this happens,
The copyright of the material data cannot be protected, and illegal use is easily possible.

As a method of preventing illegal use, it is conceivable to superimpose management information on material data in advance before editing the material data. However, editing and processing such as compression, decompression, and reverse are performed on the material data on which the management information is superimposed, and it is expected that the management information superimposed in advance cannot be read in the editing process. In order to avoid such inconvenience, it is conceivable to superimpose the management information on the material data before the editing and the processing, and to superimpose the management information on the material data after the editing and the processing. However, there is a problem that the amount of material distortion increases each time the management information is superimposed.

Such a problem occurs not only in music material data, but also in image material data, video material data, and program data describing operation scripts of these various material data.

[0011] Further, the above problem is caused not only by a multi-track editing device that handles music material data, but also by an editing device that performs overlap editing using image material data or video material data, and the operation of various material data. A similar problem occurs for a personal computer which is a program data editing device for describing a script.

Further, as the number of distribution modes of storing and distributing in a package product while keeping a plurality of tracks before the track down is increased, it is necessary to manage and distribute management information for each material data. Conventionally, material data is often edited by a licensed editor, but if the distribution of the material data increases, the material data may be tampered with by an unauthorized person. May be resold and reused. Resale and reuse of falsified material data without obtaining a license is an illegal act, and legitimate management information is not superimposed, and even if management information is superimposed, it was managed by legitimate means Not distribution in state.

Accordingly, the present invention has been proposed in view of the above-described circumstances, and provides an editing apparatus and method capable of managing copyright and the like of material data before editing processing. With the goal.

Another object of the present invention is to prevent tampering of output material data.

[0015]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an editing apparatus according to the present invention edits a material while maintaining the relationship between the material and management information for managing the material. Editing means for creating edit data by performing the above, information superimposing means for superimposing management information for each material constituting the edit data created by the editing means, and a material on which the management information is superimposed by the information superimposing means. Output means for outputting edit data, and when performing edit processing with the edit means, controlling the edit means so as to perform edit processing using a material on which management information is not superimposed, and outputting edit data. And control means for controlling the information superimposing means so as to output edit data composed of a material on which management information is superimposed.

In order to solve the above-mentioned problems, the editing method according to the present invention performs editing processing on a material and edits the edited data while maintaining the relationship between the material and management information for managing the material. When the editing data is created and output to the outside, the management information is superimposed on each material constituting the editing data, and the editing data composed of the material on which the management information is superimposed is output.

In order to solve the above-mentioned problem, another editing apparatus according to the present invention edits a material by performing an editing process on the material while maintaining a relationship between the material and management information for managing the material. Editing means for creating data and editing content information indicating editing content; encrypting each material and management information constituting the editing data created by the editing means; Encrypting means for encrypting, output means for outputting edited data encrypted by the encrypting means, and editing processing using unencrypted material when the editing processing is performed by the editing means. And control means for controlling the encryption means so as to output the edit data made of the encrypted material when the edit means is controlled to output the edit data.

In another editing method according to the present invention, in order to solve the above-described problem, an editing process is performed on a material while maintaining the association between the material and management information for managing the material. In addition to creating the data, creating edit content information indicating the edit content and, when outputting the edit data to the outside, encrypts each material and management information constituting the edit data, and transmits the edit data and the edit content information. Encrypt and output the encrypted edited data.

[0019]

Embodiments of the present invention will be described below in detail with reference to the drawings.

The present invention is applied to, for example, an editing system 1 as shown in FIG.

The editing system 1 is connected to an information holding device 10 for holding material data and management information, and an editing device 20 for editing the material data.
Is provided with a data input device 30 to which edit data is supplied. In the editing system 1, the information holding device 10 is connected to the editing device 20,
It has not only a case of editing using material data held by the information holding device 10, but also a function of editing using material data provided as a package, for example.

The information holding device 10 has an information storage function of storing material data read by the editing device 20 and management information relating to the material data. The information holding device 10 stores material data to be edited by the editing device 20 and management information for managing the material data. The information holding device 10 provides, in response to a request from the editing device 20, material data to which management information is not added or material data to which management information is added.

The editing device 20 has a function of inputting the material data held in the information holding device 10 and performing an editing process on the input material data. Further, the editing device 20 inputs the management information held in the information holding device 10, uses the input management information to associate and manage the material data and the management information, and also uses the management information as a watermark as data in the data. It has the function of embedding and outputting.

The data input device 30 has a function of inputting data on which management information from the editing device 20 is superimposed as a watermark.

The material data includes, for example, music, images,
The data is video, program data, and the like, and is data that has not been subjected to processing and editing by the editing device 20. If the material data is, for example, music, the material data is sampling data obtained by directly recording the short-time music that has been played, and is edited by the editing device 20 and is a time-series edited data in which a plurality of sampling data are connected in a time-series manner. (Edit data for one track), which is multi-track edit data obtained by editing and editing the edit data for a plurality of tracks. In the following description, the material data and the edited data are simply referred to as “data” when they are collectively referred to.

The management information includes provider information indicating the provider of the material data, material identification information for identifying the material data, copyright information indicating the location of the copyright relating to the material data, and the like. This management information corresponds to the material data, and is associated with edited data obtained by editing the material data.

This management information is generated for each material data providing source when the source of the material data is managed by the editing device 20, and is associated with the material data.

When managing the association between the material data and the management information, the editing device 20 provides, for example, the source code "001" to the source code "001" to the source data source A to Z, respectively.
“026” is allocated. Then, the editing device 20 specifies that 8-digit management information starting from the provider code 003 is allocated to the material data of the material data provider C, and gives the management information to the material data of each material data provider. More specifically, the editing device 20 gives management information “003-0000001041” to the material data indicating the No. 41 of the hip hop saxophone loop of the material data provider C, and associates the material data with the material data. I do.

Next, the configuration of the editing device 20 will be described in detail.

The editing device 20 includes a data storage management unit 21 for inputting material data from the information storage device 10 and a management information management unit 2 for inputting management information from the information storage device 10.
2. a related management unit 23 that manages a relationship (correspondence) between the data stored in the data storage management unit 21 and the management information stored in the management information management unit 22; an editing processing unit 24 that performs editing processing on the material data Is provided.

[0031] The data storage management unit 21 includes the information holding device 1.
In addition to managing the material data from 0, the editing processing unit 2
In step 4, edit data indicating the result of editing is managed. The data storage management unit 21 stores material data in a recording medium,
For example, a data management table as shown in FIG. 2 is created based on the storage addresses of the material data. This allows
The data storage management unit 21 manages the material data in association with the storage address.

According to FIG. 2, the data storage management unit 21
Address A0010, Address A0340, Address A
Material data A, material data B, material data C at 0480
Is stored, and a data management table indicating that the content indicated by the edit data D and the edit data E is stored at the address A0690 and the address A1200 is created. Here, the edit data D is data created as a result of editing the material data B.

The data storage management section 21 manages editing content information indicating editing content in the editing processing section 24 and editing data as an editing result. This data storage management unit 2
1 manages editing content information and editing data in association with each other.

The management information management unit 22 includes the information holding device 10
And the management information generated by the management information generation unit 27. The management information management unit 22 stores the management information in a recording medium, and creates a management information management table as shown in FIG. 3 based on the storage address of the management information. Thus, the management information management unit 22 manages the management information and the storage address in association with each other.

According to FIG. 3, the data storage management unit 21
Address B0010, Address A0020, Address A
In 0030, a management information management table indicating that the management information of the material data A, the management information of the material data B, and the management information of the material data C are stored is created. Here, the management information of the edited data D obtained by editing the material data B is associated with the management information of the material data B.

The relation management unit 23 includes the data storage management unit 21
Manages the relationship between the data held by the management information management unit 22 and the data held by the management information management unit 22. This related management unit 2
3 creates a related management table as shown in FIG. 4, for example, based on the data management table held by the data storage management unit 21 and the management information management table held by the management information management unit 22. Thereby, the related management unit 2
Reference numeral 3 associates a storage address of data with a storage address of management information on the data and registers the data, and manages the registration address for each registration number. The editing device 20 searches for management information on data by referring to the association management table of the association management unit 23.

According to FIG. 4, the relation management unit 23 stores the management information of the material data A stored at the address A0010 at the address B0010, and stores the management information of the material data A at the address A0340.
The management information of the material data B stored in the
The management information of the material data B stored in the address A0480 is stored in the address B0030, and the management information of the edit data D stored in the address A0690 is stored in the address B0020 and stored in the address A1200. An associated management table is created which indicates that the management information of the edited data D is stored at the address B0030. Here, the management information of the edited data D obtained by editing the material data B is associated with the management information of the material data B, and the management information of the material data B and the management information of the edited data D are the same. It is stored and managed at a storage address.

The edit processing unit 24 includes a data storage management unit 21
Performs an editing process using the data stored in the
The edited data subjected to the editing process is stored in the data storage management unit 21. The edit processing unit 24 performs processing for creating edit data in one track in which material data is connected in time series, and performs editing between a plurality of tracks.

The editing processing unit 24 includes, for example, a display device for presenting the contents of data and the like to the user and an operation input device operated by the user, and transmits desired data from the data storage management unit 21 according to a request from the user. Read and edit.

The editing processing unit 24 performs in-space editing processing for editing in space and time axis editing processing for editing in the time axis direction. The editing processing unit 24 performs, as in-space editing processing, shift processing of a data frequency band, inversion and inversion processing of a time axis, extension processing, band compression processing, and the like. Further, the editing processing unit 24 performs, as the time axis editing processing, track allocation change processing of each data, repetition setting processing, start time or start timing setting processing, effect setting processing such as fade-in and fade-out, inter-track movement processing, and the like. I do. Further, the editing processing unit 24
When the material data is an image, it performs an inter-layer movement process, a repetitive operation setting process, a start time or start event setting process, an effect setting process such as fade-in and fade-out, and the like.

The edit processing unit 24 stores the generated new edited data at a storage address different from the data to be edited.

The editing processing section 24 creates editing content information indicating editing content when performing editing processing. The editing processing unit 24 determines information indicating data to be used for each track and arrangement order information indicating an arrangement order of the data.
Thereby, the editing processing unit 24 creates the editing result information as shown in FIG. 5, for example, and causes the data storage management unit 21 to store it.

According to FIG. 5, in track (1), edit result information indicating that material data A is arranged at timing "0011" and edit data D is arranged at timing "0120" is created. In the track (2), the editing result information indicating that the material data C is arranged at the timing “8200” and the editing data E is arranged at the timing “9311” is created. Further, in the track (3), the timing “023
From 3 ”, edit result information indicating that material data B is to be repeated 34 times is created. When reproducing the edit data according to such edit result information, the track (1), the track (2), and the track (3) are reproduced at the same time by referring to the arrangement order information of the designated edit data. .

Further, the editing device 20 modulates the management information held by the output control unit 25 for outputting data to the outside and the management information held by the management information management unit 22, and creates a watermark in the form of a watermark. And a unit 26.

When outputting the edited data or the material data stored in the data storage management unit 21 to the data input device 30, the watermark creation unit 26 performs a pre-process of superimposing the management information as a watermark. The watermark creation unit 26 performs predetermined processing on the management information stored in the management information management unit 22 and outputs the result to the output control unit 25.

The output control unit 25 performs a process of outputting data to the data input device 30. This output control unit 25
Data to be output is copied and input by the data storage management unit 21, and management information is input from the watermark creation unit 26. The output control unit 25 outputs the watermarked data to the data input device 30 after performing a process of superimposing the management information on the data as a watermark.

The output control unit 25 is connected to the data input device 30
As a form of outputting watermarked data, there is a case where the data is output in an analog format through a built-in amplifier, or a case where the data is output in a digital format externally through a digital terminal or the like. The output control unit 25 performs a process of superimposing management information even when outputting in an analog format or a digital format.

The editing apparatus 20 further includes a management information generation unit 27 for internally generating management information.

The management information generation unit 27
When the management information is not added to the material data and the edit data input from the editing device 20 or when it is necessary to further add the management information inside the editing device 20, for example,
The management information is created based on the instruction from the user who operates.

The management information generation unit 27 generates management information by combining, for example, the serial number of the editing device 20 and information on the date and time of data generation when data is input from the information holding device 10. Specifically, when the serial number of the editing device 20 is “83” and the date and time of data generation is “July 11, 23:15”, the management information generation unit 27
The management information expressed by “083-0711222315” is generated.

The management information generation unit 27 outputs the created management information to the management information management unit 22. Management information generation unit 27
Information management unit 22 to which the management information created in step is input
Creates a management information management table in which the content of the management information relating to the input data is updated or added.

As described above, even when data that does not have management information is input from the information holding device 10, the data is stored in the data storage management unit 21, and the management information is generated to generate the management information. 22 and can associate the data input by the association management unit 23 with the generated management information.

Also, in many cases, management information is provided in advance for data obtained from packaged products or networks. However, according to the editing device 20 having the management information generation unit 27, for example, a phrase indicating a phrase played by the user is indicated. A new code can be assigned to the material data to add management information. Accordingly, the editing device 20 can manage the copyright even when editing and outputting the data to which the copyright information is not added in advance to the outside.

The editing apparatus 20 further includes a control unit 28 for controlling the above-described units, and outputs a control signal to each unit in response to an instruction from a user. The control unit 28 controls each unit by generating a control signal by executing, for example, a control program indicating the control content inside.

A processing procedure when editing using the material data and outputting the edited data to the data input device 30 in the editing system 1 configured as described above will be described with reference to a flowchart shown in FIG.

According to FIG. 6, the control unit 28 of the editing device 20
When inputting data from the information holding device 10,
The contents of the recording medium built in the data storage management unit 21, management information management unit 22, related management unit 23, and output control unit 25 are initialized (step S1).

Next, the control unit 28 of the editing device 20 inputs the material data specified based on, for example, an instruction from the user from the information holding device 10 to the data storage management unit 21, (Step S2). Here, the data storage management unit 21
A data management table is created according to the recorded data.

Next, the data storage management section 21 checks whether or not management information corresponding to the material data has been added to the stored data (step S3), and determines whether or not management information has been added. (Step S4). When it is determined that the management information is added, the management information is stored in the management information management unit 22 (step S5). When it is determined that the management information is not added, the management information generation unit 27 outputs the management information. A generation process is performed (step S6).

Next, the management information management unit 22 determines in step S
The management information added to the data input in step 2 or the management information newly generated by the management information generation unit 27 is stored in the internal recording medium (step S5). At this time, the management information management unit 22 creates a management information management table in response to the input of the management information.

Next, the related management unit 23 refers to the data management table and the management information management table, and stores the data stored in the data storage management unit 21 and the management information management unit 22.
Is associated with the management information stored in the storage device, and a related management table is created (step S7).

Next, the control unit 28 gives information indicating the contents of editing to the editing processing unit 24 in accordance with an instruction from the user.
The editing processing unit 24 performs editing processing on the data stored in the data storage management unit 21 and creates editing content information (step S8).

Next, the editing processing section 24 stores new editing data and editing content information obtained by performing the editing processing in the data storage management section 21 (step S9).

Next, the data storage management unit 21 uses the management information on the data before the editing process, which is the object of the editing process in step S8, as a management information corresponding to the edited data after the editing process. create. The association management unit 23 refers to the newly created data management table and updates the association management table so as to register the association between the new edited data and the management information (Step S1).
0).

Next, the control unit 28 checks whether or not an output instruction has been issued from the user as an instruction to output data (step S11), and determines whether or not the output instruction has been issued (step S12). If it is determined that the output command has not been issued, the process returns to step S8 again. If it is determined that the output command has been issued, the edited data stored in the data storage management unit 21 is stored in the output control unit 25. A process for copying is performed (step S13).

Next, the control unit 28 controls the data storage management unit 2
The relationship between each piece of material data constituting the editing data input from 1 to the output control unit 25 and the management information corresponding to each piece of material data is obtained by referring to the related management table stored in the related management unit 23. Next, the control unit 28 obtains the storage address of the management information of each material data from the related management table, and reads the storage address from the management information management unit 22 to the watermark creation unit 26. Next, the control unit 28 performs a pre-processing for superimposing each management information read from the management information management unit 22 to the watermark creation unit 26 as a watermark so that the watermark creation unit 26 performs the pre-processing.
Control. Next, the control unit 28 causes the output control unit 2 to perform a process of superimposing the management information processed by the watermark creation unit 26 on each material data constituting the edit data.
5 is controlled (step S14).

Next, the output control unit 25 performs a process of outputting the edited data on which the management information is superimposed to the data input device 30. At this time, the output control unit 25 sequentially outputs the data in which the management information is embedded over a plurality of tracks according to the order described in the editing content information (step S16). In addition, the output control unit 25 controls the data input device 3
When the 0 side designates output as digital data, the edit data on which the edit content information and the management information are superimposed is output as it is. Further, when the data input device 30 specifies output as analog data, the output control unit 25 converts the data arranged according to the editing content information into an analog format and outputs the data.

Next, the control unit 28 checks whether or not to perform further editing processing (step S17), and determines whether or not to perform further editing processing (step S18). When further editing is performed, the editing data stored in the output control unit 25 is deleted (step S1).
9) The processing after step S8 is started again.

According to the editing system 1 which performs such processing, when editing data is created and output to the outside,
For each piece of material data constituting the editing data, it is possible to superimpose and output management information on the material data. Therefore, according to the editing system 1, not only the information on the copyright of the edited data but also the information on the copyright of each material data constituting the edited data can be superimposed and output as the management information. Therefore, according to the editing system 1, even when the edited data is divided and used at the edited data output destination, the copyright information for each material data is valid, and the copyright information is superimposed on each divided material data. Copyright information can be managed based on the copyright information, and copyright management can be performed for reuse, resale, and the like of each divided material data.

Furthermore, according to the editing system 1, when editing is performed for each track and multitrack editing is performed by combining the tracks obtained by the editing, not only the editing data including a plurality of tracks, but also Also, management information can be superimposed on edit data for each track, and copyright management for each track can be performed.

Further, according to the editing system 1,
When output to the outside, the management information is superimposed, but the editing process is performed using the material data without superimposing the management information while maintaining the relationship between the material data and the management information when performing the editing process. , It is possible to eliminate distortion of the material data caused by superimposing the management information.

In the above example, the material data includes music material, still image material, moving image material, and program data. Further, as the editing processing, editing is performed by combining a plurality of tracks in the case of a music material, editing is performed by combining a plurality of screens in the case of a still image material, and a plurality of objects conforming to, for example, the MPEG4 standard are edited in the case of a moving image material. In the case of combined editing or game program data, the editing may be an editing for inserting individual character materials into the program.

Next, an editing system 100 according to another embodiment of the present invention will be described with reference to FIG.

The editing system 100 includes an information holding device 110, a decryption key holding device 120, an editing data input device 1
40, a decryption key input device 150 is connected to the editing device 130. The detailed description of the same parts as those in the editing system 1 will be omitted.

The information holding device 110 has an information storage function of storing material data read by the editing device 130 and management information on the material data. Further, the information holding device 110 has a function of storing the encrypted material data and management information. The information holding device 110 provides, in response to a request from the editing device 130, material data or material data to which management information is added. Further, the information holding device 110 may have an encryption function for encrypting material data.

The decryption key holding device 120 has a function of holding decryption key information for decrypting encrypted material data or management information. The decryption key holding device 120 outputs the held decryption key information to the editing device 130 under predetermined conditions.

The editing device 130 has a function of inputting the material data held in the information holding device 110 and performing an editing process on the input material data. The editing device 130
Has a function of inputting management information held in the information holding device 110, using the input management information to manage the material data in association with the management information, and encrypting and outputting the management information and the data. .

The editing data input device 140 is the editing device 1
30 has a function of inputting the encrypted management information and edited data.

The decryption key input device 150 has a function of obtaining a decryption key for decrypting the management information and data encrypted by the edited data input device 140. The decryption key input device 150 acquires a decryption key from the editing device 130 under predetermined conditions.

The editing device 130 includes an encrypted data input unit 131 for inputting encrypted management information and material data from the information holding device 110, a data storage management unit 132 for managing material data from the information holding device 110, Management information management unit 133 for managing information, data storage management unit 13
2, a relation management unit 134 that manages a relationship (correspondence relationship) between the data stored in the management information management unit 133 and the data stored in the management information management unit 133, and an edit processing unit 13 that performs editing processing on the material data.
5 is provided.

The encrypted data input unit 131 inputs the encrypted material data and management information from the information storage device 110, and performs a predetermined process with the decryption key storage device 120 to obtain a decryption key. . The encrypted data input unit 131 decrypts the encrypted material data and management information using the decryption key. This encrypted data input unit 13
1 separates the decrypted material data from the management information, outputs the material data to the data storage management unit 132,
The management information and the decryption key are output to the management information management unit 133.

The data storage management unit 132 manages the material data from the information storage device 110 or the encrypted data input unit 131, and also manages the edited data. The data storage management unit 132 stores data on a recording medium, and creates a data management table as shown in FIG. 2, for example, based on the storage address of the data.

The data storage management unit 132 manages edit content information indicating the edit content of the edit processing unit 135 and edit data as an edit result. The data storage management unit 132 manages editing content information and editing data in association with each other.

The management information management unit 133 includes the information holding device 1
10 manages the management information input from 10 and the management information generated by the management information generation unit 138 and the decryption key. The management information management unit 133 stores the management information and the decryption key in a recording medium,
A management information management table as shown in FIG. 8 is created based on the storage address of the management information. Accordingly, the management information management unit 133 manages the management information, the decryption key, and the storage address in association with each other.

According to FIG. 8, the data storage management unit 132
Is the management information and decryption key of the material data A at the address B0010, the management information and the decryption key of the material data B at the address B0020, the management information and the decryption key of the material data C at the address B0030, and the management information of the material data J at the address B9999. And a management information management table indicating that the decryption key is stored. Here, the management information and the decryption key of the edited data D obtained by editing the material data B are associated with the management information and the decryption key of the material data B.

The relation management unit 134 is the data storage management unit 1
32 manages the relationship between the data held in the storage unit 32 and the management information held in the management information management unit 133. The relation management unit 134 creates a relation management table as shown in FIG. 4 based on the data management table held by the data storage management unit 132 and the management information management table held by the management information management unit 133, for example. create. This allows
The association management unit 134 associates and registers the storage address of the data, the management information on the data, and the storage address of the decryption key, and manages each registration number. Editing device 2
In 0, the management information and the decryption key for the data are searched by referring to the related management table of the related management unit 134.

[0086] The editing processing unit 135 includes the editing processing unit 2 described above.
4 has the same function as that of FIG. The editing processing unit 135 performs an editing process using the data stored in the data storage management unit 132, and causes the data storage management unit 132 to store the edited data that has undergone the editing process. The edit processing unit 135
By performing the editing process, for example, the editing result information as shown in FIG. 5 is created and stored in the data storage management unit 132.

Further, the editing device 130 includes an output control unit 136 for outputting data to the outside, a management information management unit 13
And an encryption key generation unit 137 that generates an encryption key using the management information stored in the storage unit 3.

The encryption key generation section 137 generates an encryption key for encrypting data and management information when outputting the edited data or material data stored in the data storage management section 132 to the edited data input device 140. Do the processing,
The encryption key is output to the output control unit 136. At this time, the encryption key generation unit 137 generates an encryption key using a built-in random number generator or the like. In addition, the encryption key generation unit 137 performs a predetermined process with the decryption key input device 150 to convert a decryption key for decrypting the encryption of the material data and the management information under a predetermined condition into a decryption key. Output to the input device 150.

The output control unit 136 performs a process of outputting data to the edited data input device 140. The output control unit 136 stores the data to be output in the data storage management unit 132.
And the encryption key generation unit 137
The encryption key is input from. The output control unit 136 encrypts the data and the management information using the encryption key and outputs the data and the management information to the edited data input device 140.

Further, the editing apparatus 130 includes a management information generation unit 138 for internally generating management information.

The management information generating section 138 is provided with the information holding device 1
When the management information is not added to the material data or the editing data input from the input device 10, or when it is necessary to further add the management information inside the editing device 130, the instruction from the user who operates the editing device 130 Create management information based on the information.

Further, the editing apparatus 130 includes a control unit 139 for controlling the above-described units, and outputs a control signal to each unit in response to an instruction from a user. The control unit 139 includes:
For example, a control signal is generated by executing a control program indicating the control content inside, and each unit is controlled.

The editing system 100 configured as described above
The processing procedure for editing and outputting the material data will now be described with reference to the flowcharts shown in FIGS.

According to FIG. 9, the control unit 1 of the editing device 130
39, when inputting material data or edit data from the information holding device 110, initializes the contents of the recording medium built in the data storage management unit 132, the management information management unit 133, the related management unit 134, and the output control unit 136. (Step S21).

Next, the control unit 139 controls the information holding device 11
It is checked whether the material data read from 0 is encrypted (step S22), and it is determined whether or not the material data is encrypted (step S23). When it is determined that the material data is encrypted, the encrypted data input unit 131 encrypts the material data. The decrypted key is acquired from the decryption key holding device 120 by inputting the converted material data and management information. The encrypted data input unit 131 decrypts the material data and the management information with the obtained decryption key (Step S24). On the other hand, when reading out the unencrypted material data from the information holding device 110, step S
Proceed to step 25.

Next, the control unit 139 inputs the material data specified based on, for example, an instruction from the user from the information holding device 110 to the data storage management unit 132 and stores the material data in the recording medium inside the data storage management unit 132. It is stored (step S25). Here, the data storage management unit 132 creates a data management table in accordance with the recording of the material data.

Next, the data storage management section 132 checks whether or not management information corresponding to the material data has been added to the stored material data (step S26), and determines whether the management information and the decryption key have been added. It is determined whether or not it is (step S27). When it is determined that the management information and the decryption key are added, the process of storing the decryption key in the management information management unit 133 is performed (step S28), and the management information is stored in the management information management unit 133 (step S30). When it is determined that it has not been added, the management information generation unit 13
In step 8, a process for generating management information and a decryption key is performed (step S29).

Next, the relation management unit 134 refers to the data management table and the management information management table, and compares the data stored in the data storage management unit 132 with the management information stored in the management information management unit 133. An association is made and an association management table is created (step S31).

Next, the control unit 139 gives information indicating the contents of the editing to the editing processing unit 24 in accordance with the instruction from the user, and the editing processing unit 24 edits the data stored in the data storage management unit 132. And edit content information is created (step S32).

Next, the editing processing section 24 stores new editing data and editing content information obtained by performing the editing processing in the data storage management section 132 (step S33).

Next, the data storage management section 132 converts the management information on the material data before the editing process or the editing data, which is the object of the editing process, into the data management table as management information corresponding to the edited data after the editing process. Create
The association management unit 134 updates the association management table with reference to the newly created data management table so as to register the association between the new edited data and the management information (step S34).

Next, the control unit 139 checks whether or not an output instruction has been issued from the user as an instruction to output data (step S35), and determines whether or not the output instruction has been issued (step S36). If it is determined that the output instruction has not been issued, the process returns to step S32 again, and if it is determined that the output instruction has been issued,
The editing data stored in the data storage management unit 132 is copied into the output control unit 25 (step S37).

Next, the control unit 139 determines the relationship between the individual material data constituting the edited data to be output and the management information and the decryption key corresponding to each material data.
4 is obtained by referring to the related management table stored in.
The control unit 139 obtains the management information of each material data and the storage address of the decryption key from the related management table. Next, the control unit 139 performs a process of reading the decryption key to the encryption key generation unit 137 and reading the management information to the output control unit 136. Next, an encryption key is generated using the decryption key, and each material data and each management information are encrypted using the encryption key (step S38).

Next, the control unit 139 controls the encryption key generation unit 137 so as to generate a new encryption key for encrypting each of the encrypted material data, management information, and editing content information. Using the new encryption key generated by the unit 137, the encrypted material data, management information, and editing content information are encrypted (step S39). Thus, the editing device 20 encrypts each material data, management information, editing content information, and editing data.

Next, the output control section 136 performs a process of outputting the encrypted edited data to the edited data input device 140. At this time, the output control unit 136 sequentially outputs the encrypted material data over a plurality of tracks according to the order described in the editing content information (step S4).
0). When the edit data input device 140 specifies output as digital data, the output control unit 136 encrypts and outputs edit data including edit content information and management information. Further, when the editing data input device 140 specifies output as analog data, the output control unit 136 converts the data arranged according to the editing content information into an analog format and outputs the data.

Next, the control unit 139 checks whether or not to perform further editing processing (step S41), and determines whether or not to perform further editing processing (step S42). When further editing is performed, the editing data stored in the output control unit 136 is deleted (step S
43) Then, the processing after step S33 is started again.

An editing system 100 for performing such processing
According to the above, when editing data is created and output to the outside, each material data and management information constituting the editing data are encrypted and output, so that tampering at the data output destination in the unit of material data is prevented. can do. Therefore, according to the editing system 100, it is possible to prevent the divided material data from being falsified and reused or resold.

Further, according to the editing system 100, since the management information on the material data is also individually encrypted and output, it is possible to prevent the management information from being falsified. Therefore, this editing system 10
According to 0, it is possible to prevent the management information of each material data from being falsified and reused or resold.

Further, according to the editing system 1, when editing is performed for each track and multitrack editing is performed by combining the tracks obtained by the editing, the editing data is converted into editing data including a plurality of tracks. Also, each material data and management information can be validated.

Further, according to the editing system 1,
When performing the editing process, the management information added to the material data can be divided and only the material data can be used. Therefore, it is necessary to skip the management information at the time of editing and frequently perform the encryption process and the decryption process. Therefore, the processing cost can be reduced and the processing speed can be increased.

In the above example, the material data includes music material, still image material, moving image material, and program data. Further, as the editing processing, editing is performed by combining a plurality of tracks in the case of a music material, editing is performed by combining a plurality of screens in the case of a still image material, and a plurality of objects conforming to, for example, the MPEG4 standard are edited in the case of a moving image material. In the case of combined editing or game program data, the editing may be an editing for inserting individual character materials into the program.

Further, in the above-described example, the editing device 20 and the editing device 130 for providing the editing data to the data input device 30 or the editing data input device 140 have been described. Even when editing data is output to the input device 140, it is needless to say that processing for superimposing management information and processing for encrypting may be performed, and copyright management and falsification prevention in units of output material data may be performed. Can be realized.

[0113]

As described above in detail, the editing apparatus and method according to the present invention perform editing processing on a material while maintaining the relationship between the material and management information for managing the material. When creating the edit data and outputting the edit data to the outside, the management information is superimposed on each material data constituting the edit data, and the edit data composed of the material data on which the management information is superimposed is output. The management information including the copyright information can be superimposed on each data, and the copyright management can be performed on each material data output to the outside.

Further, another editing apparatus and method according to the present invention perform editing processing on a material to create edited data while maintaining the relationship between the material and management information for managing the material. When editing content information indicating editing content is created and editing data is output to the outside, each material and management information constituting the editing data are encrypted, and the editing data and editing content information are encrypted. Since the edited data is output, it is possible to encrypt each material data, and to prevent tampering of the output material data.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an editing system to which the present invention has been applied.

FIG. 2 is a diagram showing a data management table created by a data storage management unit constituting an editing system to which the present invention is applied.

FIG. 3 is a diagram showing a management information management table created by a management information management unit constituting an editing system to which the present invention is applied.

FIG. 4 is a diagram showing a relation management table created by a relation management unit constituting the editing system to which the present invention is applied.

FIG. 5 is a diagram showing editing content information created by an editing processing unit constituting an editing system to which the present invention is applied.

FIG. 6 is a flowchart showing a processing procedure when an editing system to which the present invention is applied performs editing processing and outputs the processed processing to the outside.

FIG. 7 is a block diagram showing a configuration of another editing system to which the present invention is applied.

FIG. 8 is a diagram showing a management information management table created by a management information management unit constituting another editing system to which the present invention is applied.

FIG. 9 is a flowchart showing a processing procedure when an editing process is performed by another editing system to which the present invention is applied and output to the outside.

FIG. 10 is a flowchart showing a processing procedure when an editing process is performed by another editing system to which the present invention is applied and output to the outside.

[Explanation of symbols]

1 editing system, 10 information holding device, 20 editing device, 21 data storage management unit, 22 management information management unit,
23 related management unit, 24 editing processing unit, 25 output control unit, 26 watermark creation unit, 27 management information generation unit, 28 control unit, 30 data input device, 100
Editing system, 110 information holding device, 120 decryption key holding device, 130 editing device, 131 encrypted data input unit, 132 data storage management unit, 133 management information management unit, 134 related management unit, 135 editing processing unit, 13
6 output control unit, 137 encryption key generation unit, 138 management information generation unit, 139 control unit, 140 edited data input device, 150 decryption key input device

Continued on the front page F term (reference) 5D044 DE22 DE28 DE49 DE50 DE53 GK17 HL14 5D110 AA27 AA29 BB20 CA16 CD15 CF06 DA04 DA08 DA12 DA15 DB05 DB17 DC05 DC06 DC16 DC27 DD13 DE04 DE06 5J104 AA14 AA15

Claims (20)

[Claims] An editing means for performing editing processing on a material to create editing data while maintaining a relationship between the material and management information for managing the material, and editing data created by the editing means. Information superimposing means for superimposing management information on each material constituting the information processing means, output means for outputting edit data composed of the material on which the management information is superimposed by the information superimposing means, and management when the editing means performs editing processing. The editing means is controlled to perform an editing process using a material on which information is not superimposed, and when outputting editing data, the information superimposing means is configured to output editing data composed of a material on which management information is superimposed. An editing apparatus, comprising: a control unit for controlling. 2. An input means for inputting the material and management information, wherein the editing means performs an editing process using the material input by the input means, and the information superimposing means inputs by the input means. 2. The editing apparatus according to claim 1, wherein the management information is superimposed on the material data by using the obtained management information. 3. Management information generating means for generating the management information, management of the management information generated by the management information generating means, and a relationship between a material to be edited by the editing means and edit data. 2. The editing apparatus according to claim 1, further comprising an information management unit. 4. The control means according to claim 1, wherein the control means superimposes the management information on the edit data even when the edit data after the end of the edit processing and the edit data in the edit process are output on a trial basis. 2. The editing device according to claim 1, wherein the editing device controls the means. 5. The editing apparatus according to claim 1, wherein the management information is information for managing a copyright of the material and the edited data. 6. An editing process is performed on a material while maintaining the association between the material and management information for managing the material, and when the editing data is output to the outside, the editing data An editing method characterized in that management information is superimposed on each of the materials constituting the above, and edit data composed of the material on which the management information is superimposed is output. 7. The method according to claim 6, wherein the material and the management information are input, an editing process is performed using the input material, and the management information is superimposed on each material constituting the editing data using the input management information. The editing method according to claim 6. 8. The method according to claim 6, wherein the management information is generated, and a relation between the generated management information, a material to be edited, and edit data is managed.
How to edit the description. 9. The method according to claim 6, wherein the management information is superimposed on each material constituting the editing data when outputting the editing data after the editing process and the editing data in the editing process on a trial basis. How to edit. 10. The editing method according to claim 6, wherein the management information is information for managing a copyright of the material and the edited data. 11. An editing process that edits a material to create editing data while maintaining the relationship between the material and management information for managing the material, and also creates editing content information indicating the editing content. Means for encrypting each material and management information constituting the edited data created by the editing means, and encrypting the edited data and edited content information; and Output means for outputting edited data; and when the editing means performs editing processing, the editing means controls the editing means to perform editing processing using unencrypted material. And a control unit for controlling the encryption unit so as to output edited data composed of the selected material. 12. An image forming apparatus further comprising: input means for inputting the material and / or management information; and storage means for storing the material and management information while maintaining a relationship between the material input by the input means and the management information, 12. The editing apparatus according to claim 11, wherein the editing unit performs an editing process using the material stored in the storage unit. 13. A key acquisition unit for acquiring key information for decryption, and decrypts encrypted material data and management information input to the input unit using the key information acquired by the key acquisition unit. 13. The editing apparatus according to claim 12, further comprising decoding means for performing decoding. 14. A management information generating means for generating management information of the material input to the input means, management information generated by the management information generating means, a material to be edited by the editing means, 13. The editing apparatus according to claim 12, further comprising information management means for managing a relationship with the edit data. 15. A system according to claim 15, further comprising a dividing unit for dividing the edit data input to the input unit into a material and management information, wherein the editing unit performs an editing process using the material divided by the dividing unit. 13. The editing device according to claim 12, wherein: 16. While maintaining the association between a material and management information for managing the material, edit processing is performed on the material to create edit data, and edit content information indicating the edit content is created. When outputting the edited data to the outside, the editing is characterized by encrypting each material and management information constituting the edited data, encrypting the edited data and edited content information, and outputting the encrypted edited data. Method. 17. The method according to claim 1, wherein the material and / or management information is input, the material and the management information are stored while maintaining a relation between the input material and the management information, and an editing process is performed using the stored material. 17. The editing method according to claim 16, wherein 18. When editing using an encrypted material and management information, key information for decryption is obtained, and the encrypted material data and management information are decrypted using the obtained key information. 18. The editing method according to claim 17, wherein the editing is performed. 19. The system according to claim 1, wherein management information of the input material is generated, and a relationship between the generated management information, a material to be edited, and edit data is managed.
7. The editing method described in 7. 20. The editing method according to claim 17, wherein the input editing data is divided into a material and management information, and an editing process is performed using the divided material.