JP2006163959A - Storage medium copying method, control program for storage medium copying machine, and storage medium copying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To copy a storage medium by easy operation, and to certainly specify circumstances related to illegally copied data such as information related to a responsible person thereof or an outflow route. <P>SOLUTION: In a copying machine having a drive 13 of a copy source, and a drive 14 of a copy destination, a watermark information medium slot 15 installed with a watermark information medium recording electronic watermark information is provided, and the electronic watermark information is embedded and recorded in the storage medium of the drive 14 in time of data copying. As the electronic watermark information, information related to a possessor of original data is recorded, or information related to a distribution destination of the copied storage medium is recorded. The watermark information medium installed to the slot 15 is recorded with electronic watermark information generation software for generating the electronic watermark information, and copying operation cannot be performed when the watermark information medium is absent. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a storage medium duplication method, a storage medium duplication machine control program, and a storage medium duplication machine.

  Conventionally, various storage media such as FD, CD-R / RW, DVD-R / RW, and MO have been used as means for distributing various data such as audio, images (moving images / still images), and various data files. It is used. With the spread and speeding up of computers, digital content stored in this type of storage medium can be easily copied, and copyright infringement of digital content stored in this type of storage medium can be prevented. Prevention is becoming a major challenge.

  For example, in the field of music / broadcasting, sample data (for example, promotional music) may be stored as digital content in the storage medium as described above and distributed to related parties. Incidents of unknown source data that have been copied are frequently leaked via the Internet.

In view of such circumstances, audio CDs are recorded in a so-called copy control format that is out of the CDDA standard, and a technique for obstructing a copying operation itself by a PC or the like, or information called a digital watermark is embedded in original data. Techniques for recording on a storage medium (for example, Patent Documents 1 and 2 below) are known. The digital watermark information is mainly used for proving the authenticity of the original data in a known technique. In addition, a technique that enables the same data to function as both sample data (for example, music data with reduced sound quality) and original data by using embedding of digital watermark information (Patent Document 3 below) ) Is also known.
JP 2002-244665A JP 2003-143390 A JP 2000-339852 A

  However, in the past, if the data copied from the sampler medium was leaked as described above, there is almost no effective means for identifying the leaked route, and if the data leaked, damages lawsuit It was very difficult to gather evidence that could keep up (such as who made illegal duplication).

  Conventionally, in order to duplicate the above-mentioned various storage media, it is called a duplicator or the like that accommodates a plurality of media drives and copies data from one drive to another one or a plurality of drive media. Although devices are known, it is desirable to be able to easily record information for this type of device if it incorporates a means for identifying the path of illegally duplicated data.

  In view of the above problems, the object of the present invention is to make it possible to copy a storage medium by an easy operation, and to more reliably identify information related to illegally copied data, for example, a person responsible for the illegal copy and an outflow route. There is to do.

  In order to solve the above problems, in the present invention, a storage medium duplication method for copying original data from a first storage medium storing original data to a second storage medium and a control program for the storage medium duplicator Embeds and records electronic watermark information in the data recorded on the second storage medium by a predetermined recording method, and at that time, even when further copying is performed from the second storage medium, the electronic watermark information is stored in the copy destination. A recording system that is copied as it is and a configuration in which information relating to the owner of the original data or information relating to the distribution destination of the second storage medium is recorded as the electronic watermark information.

  In the storage medium duplicating machine, the first storage medium drive for reading from the first storage medium, the second storage medium drive for writing to the second storage medium, and at least the electronic A configuration in which a digital watermark information medium slot for mounting a digital watermark information medium in which watermark information is recorded is provided.

  Alternatively, in the storage medium copying machine, digital watermark information generation software for generating the digital watermark information is further recorded on the digital watermark information medium, and the digital watermark information medium is not mounted in the digital watermark information medium slot. As long as the configuration is adopted, data copy from the first storage medium to the second storage medium cannot be performed.

  As described above, when copying data to the second storage medium, information relating to the owner of the original data is recorded as electronic watermark information, or information relating to the distribution destination of the second storage medium is embedded and recorded. Therefore, when data illegally copied from the second storage medium is found, the digital watermark information is extracted from the data to obtain information on the owner of the original data, or the distribution destination of the second storage medium This provides an excellent effect that information on circumstances relating to illegally copied data, for example, information on the responsible person and the outflow route can be identified more reliably.

  In addition, in the storage medium duplicating machine, in addition to the first and second storage medium drives for the first and second storage media, an electronic device in which an electronic watermark information medium in which at least the electronic watermark information is recorded is mounted Since the watermark information medium slot is provided, the storage medium can be easily copied while the digital watermark information is embedded and recorded simply by loading the digital watermark information medium into the digital watermark information medium slot.

  Further, in the storage medium duplicator, the digital watermark information generation software for generating the digital watermark information is further recorded on the digital watermark information medium, so that the digital watermark information medium is not mounted in the digital watermark information medium slot. As long as data can be copied from the first storage medium to the second storage medium, it is possible to effectively protect against theft or unauthorized use of the storage medium duplicator.

  Hereinafter, illegal copying using digital watermark (hereinafter also simply referred to as “watermark”) information in a copying machine used for copying a storage medium such as FD, CD-R / RW, DVD-R / RW, and MO. An example for making it possible to more reliably identify the circumstances regarding the data, for example, the information on the person responsible and the outflow route.

  FIG. 1 shows an external configuration of a copying machine employing the present invention. In FIG. 1, 11 is an operation unit, 12 is a display unit, 13 is a copy source drive, 14 is a copy destination drive, and 15 is a watermark information medium slot.

  This apparatus inserts a copy source medium into the drive 13 and copies the data of the copy source medium to each medium inserted into a plurality of copy destination drives 14 (in the case of this embodiment). Used.

  The operation unit 11 includes various function keys such as a start / stop key for use in controlling the duplication operation.

  The display unit 12 is used for monitor display of a duplication operation. In the figure, a display element that forms a simple display mode such as lighting / extinguishing / flashing / lighting color is assumed as in an LED. Thus, a display element that can display more complicated information by displaying characters or symbols may be used.

  In copying data from the drive 13 to each drive 14, in this embodiment, watermark information is embedded in the data written on the medium of each drive 14. What information is recorded as the watermark information will be described in detail later.

  The watermark information embedded in the data written to the medium of each drive 14 is read from a watermark information medium inserted in the watermark information medium slot 15, for example, a medium such as an IC card. In consideration of theft or unauthorized use of the copying machine itself, it is preferable that the copying operation cannot be performed when an appropriate watermark information medium is not inserted in the watermark information medium slot 15.

  For this purpose, for example, the watermark information is recorded on the watermark information medium using a special format (including an encrypted format), and the authentication information that can identify the copier and the watermark information medium is used as the public key. Recording on a watermark information medium using an encryption method or the like so that the copying machine cannot operate unless the specific copying machine has a dedicated watermark information medium, or watermark information generation software as described later A configuration is conceivable in which the information is recorded on a watermark information medium loaded in the watermark information medium slot 15 so that the copying machine cannot operate without the watermark information generation software.

  FIG. 2 shows the configuration of the control system of the apparatus of FIG. In FIG. 2, the same reference numerals are given to the members shown in FIG. As illustrated, the operations of the operation unit 11, the display unit 12, the copy source / destination drives 13 and 14, and the watermark information medium slot 15 illustrated in FIG. 1 are controlled by the main control circuit 21. The main control circuit 21 includes a CPU, a memory, an I / O circuit for each block, a driver circuit, and the like. The CPU program of the main control circuit 21 is stored in the ROM 21a.

  In this embodiment, the main control circuit 21 controls each unit in accordance with an operation from the operation unit 11, reads the original data stored in the storage medium of the drive 13, and writes the data in each drive 14 to perform data copying. At that time, the digital watermark information 23 recorded in the watermark information medium 22 loaded in the watermark information medium slot 15 is embedded in the data recorded by each drive 14.

  As the embedded recording method of the digital watermark information 23, any known recording method, for example, the recording method recorded in the above-mentioned Patent Documents 1 and 2, can be used. In that case, the recording recorded by each drive 14 is important. The watermark information is embedded in a format that does not prevent normal use of the medium (for example, reproduction of music or video data), and when further copying is performed, the same watermark information is copied to the copy destination as it is. Use a recording method that is possible.

  That is, in this recording method, in the case of normal digital reading from a recording medium recorded by each drive 14, the recorded watermark information is read without change, and further when digital copying is performed. Of course, it is necessary to use a recording method in which the same watermark information is copied to the copy destination as it is.

  In this embodiment, watermark information generation software 24 (the whole or at least a main part) for generating data to be embedded in data recorded by each drive 14 based on the digital watermark information 23 is stored in the watermark information medium 22. Therefore, this copying machine is configured so that the intended copying operation cannot be performed unless the watermark information medium 22 storing the appropriate watermark information generation software 24 is loaded into the watermark information medium slot 15.

  In this way, if the watermark information generation software 24 is recorded on the watermark information medium 22 so that the copying machine cannot operate without the watermark information generation software, the vendor of the copying machine can use the watermark information medium 22. Strong protection against theft and unauthorized use of the copy machine itself, for example, by strictly managing the supply destination and by storing / managing the copy machine and the watermark information medium 22 separately for the user. It becomes.

  As described above, the copying machine according to the present embodiment has the watermark information medium slot 15, and the digital watermark recorded on the watermark information medium 22 can be simply loaded into the watermark information medium slot 15. While embedding watermark information generated based on the information 23, data can be copied at high speed from the copy source drive 13 to a plurality of copy destination drives 14 by an extremely easy operation.

  In addition, by recording the watermark information generation software 24 together with the watermark information medium 22 so that copying cannot be performed without the watermark information medium 22, it is possible to prevent the copying machine itself from being stolen or illegally used. However, there is an excellent advantage that effective defense is possible.

  Alternatively, it is necessary to restrict the management of the watermark information medium 22 by preventing the copying machine from operating without the watermark information medium 22, but an unspecified number of people can operate the copying machine depending on the circumstances. It is also possible to install in such a place.

  Here, a management method using the digital watermark information 23 of the watermark information medium 22, in particular, what information is recorded as the digital watermark information 23 will be described with reference to FIGS.

  The example of FIG. 3 shows a case where administrator information is embedded as watermark information.

  In FIG. 3, reference numeral 100 denotes the copying machine of the present invention shown in FIGS. 1 and 2, and 24 denotes the same watermark information generation software as described above. The original medium 13a is read by the copy source drive 13 of the copying machine 100, and stores original data (for example, music data).

  In FIG. 3, for example, the duplicating machine 100 is installed in the company (left side from the center of the figure) of a company that intends to distribute the data of the original media 13a as a sample. Lending to other companies. Such sample lending work is often performed, for example, in the music industry and the broadcasting industry.

  In the embodiment of FIG. 3, the watermark information generation software 24 generates the digital watermark information 31 from the manager information 23 a. The information 23a of the manager (Owner) is information indicating the origin (owner: copyright owner, for example) of the original data of the original medium 13a, and the data format may be character string information of a company name or a person name. Since the amount of embedded data tends to be large for company names, etc., it is recommended to use some type of coded information (manufacturer code or vendor code) format or data with a smaller amount of information than a trade name, shop name, phone number, etc. .

  The manager information 23a is separately registered in the digital watermark information management database 32. At this time, the identification information (or other detailed information) of the specific original medium 13a and the information 23a of the manager (Owner) embedded in the original medium 13a as a watermark are related and recorded.

  The generated digital watermark information 31 is embedded as indicated by “Owner” in the figure with respect to the data read from the original medium 13a by the copying machine 100 as described above, and then the primary copy. It is recorded on the medium 34.

  The primary copy medium 34 created in this way is rented to a distribution destination, and is collected after work such as a press-related promotion at the distribution destination is completed (center in the figure).

  If an illegal copy is made at the distribution destination, the same watermark information (Owner) as the primary copy medium 34 is copied to the copy destination as it is on the illegally created secondary copy medium 34a together with the original data. Therefore, the data 34a '(copy file) extracted from the secondary copy medium 34a also flows out (to the Internet or the like) with the same watermark information (Owner).

  In this way, even if unauthorized copying is performed, the same watermark information (Owner) is recorded in the data 34a ′ extracted from the secondary copy medium 34a (or generated by subsequent copying). Even if a file suspected of being an unauthorized copy is found, the digital watermark information verification software 33 can be used to determine the official owner (Owner) of the data 34a ′.

  This digital watermark information verification software 33 performs reverse conversion of the digital watermark by a decoding method corresponding to the encoding method used at the time of embedding by the copying machine 100 and reproduces it, and information of the official owner of the data 34a ′ (Owner) To extract. Alternatively, further detailed information can be known by referring to the digital watermark information management database 32 at this time. The digital watermark information verification software 33 can be implemented as an application such as a PC.

  As described above, even when suspicious (outflow?) Data is found by recording the information digital watermark information of the official owner (Owner) of the data 34 a ′ on the primary copy medium 34, Formal owner information can be extracted. Therefore, the owner information extracted in this way is used as evidence for taking appropriate countermeasures against a third party who distributes the data 34a ′ by distributing the data 34a ′, for example. be able to.

  The example of FIG. 4 shows a case where distribution destination (user) information is embedded as watermark information. FIG. 4 is shown in the same format as FIG. 3, but in this embodiment, in addition to the administrator information 23b, the watermark information generation software 24 further distributes information (UserA, UserB). 23c and 23d are used to generate digital watermark information 31 based on these pieces of information, and the data read from the original medium 13a by the copying machine 100 is embedded and recorded in the primary copy medium 34 in the same manner as described above.

  Also, the administrator information 23b and distribution destination information (UserA, UserB) 23c, 23d embedded as the digital watermark information 31 are registered in the digital watermark information management database 32 in the same manner as in FIG. Keep it.

  At this time, different distribution destination information (UserA, UserB) 23c, 23d is used depending on which distribution destination is distributed, and thereby, different digital watermark information 31 is generated for each distribution destination. Thereby, the recorded data is the same in the primary copy medium 34a distributed to the user A and the primary copy medium 34b distributed to the user B, but different digital watermark information (Owner is the same, but User A is the same). And UserB are different).

  In the example of FIG. 4, these primary copy media 34a and 34b are rented and collected by different users A and B, respectively. At this time, user A is only authorized and returns primary copy media 34a as is, but user B performs illegal copy from primary copy media 34b to create secondary copy media 34c. The data 34c ′ has been leaked from.

  Even in such a case, since the digital watermark information (Owner and UserB) is transferred to the data 34c ′, if the digital watermark information verification software 33 is used, the data 34c ′ and the official owner (Owner) of the data 34a ′ In addition, it is possible to identify to which user (in this case, UserB) the medium has been distributed (rented), and to know further detailed information by referring to the digital watermark information management database 32.

  As described above, suspicious data is recorded on the primary copy medium 34 by recording the information of the official owner (Owner) of the data 34a ′ and the information of the distribution destination information (UserA, UserB) as digital watermark information. Even in the case of discovery, information of the official owner (Owner) and information of distribution destination information (UserA, UserB) can be extracted from the data. Therefore, if the information extracted in this way is used, especially the information of the owner (Owner) is appropriate countermeasures for the third party who distributes the data 34a 'by distributing it on the Internet or the like, for example. In this embodiment, the distribution destination information (UserB) can be further extracted, so that the outflow route of the data can be traced reliably. Appropriate measures can be taken, such as pursuing breach and liability for damages.

  3 and FIG. 4, the digital watermark information is recorded on the surface of the storage medium, the written text on the package, or the text of the rental contract of the storage medium, and the unauthorized copy. In such a case, it is possible to prevent unauthorized use of copy media by notifying that the owner and the outflow route can be specified.

  In the above, an example in which the primary media is lent is considered. However, even when the original media is an original music CD or the like and the primary copy media is sold to the user instead of being lent, Needless to say, the same effect can be obtained.

  The present invention can be applied to a copying machine of any storage medium such as FD, CD-R / RW, DVD-R / RW, and MO. In this case, the copying machine does not necessarily have a hardware configuration as a dedicated machine. For example, a plurality of storage medium drives for a PC and an IC card reader used as the watermark information medium slot are used. The present invention can also be applied to a system configured by connecting devices. Software for carrying out the present invention, in particular, watermark information generation software is stored in a watermark information medium such as an IC card as described above, or stored in the ROM of the main control circuit of the copying machine, or In the configuration using the PC as described above, it can be supplied as application software or the like, or further introduced into these storage means via a network and further updated.

It is explanatory drawing which showed the external appearance structure of the copying machine which employ | adopted this invention. FIG. 2 is a block diagram showing a configuration of a control system of the copying machine of FIG. It is the flowchart figure which showed the case where manager information is embedded as electronic watermark information. It is the flowchart figure which showed the case where distribution destination (user) information is embedded as electronic watermark information.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Operation part 12 Display part 13 Drive 14 Drive 15 Watermark information medium slot 21 Main control circuit 22 Watermark information medium 23, 31 Watermark information 24 Watermark information generation software 32 Watermark information management database 33 Watermark information verification software 34 Primary copy Media 34a, 34b Secondary copy media 100 Copying machine

Claims (5)

In a storage medium duplication method for copying original data from a first storage medium storing original data to a second storage medium,
The digital watermark information is embedded and recorded in the data recorded on the second storage medium by a predetermined recording method, and the digital watermark information is copied to the copy destination as it is even when further copying is performed from the second storage medium. Using the recording method
A storage medium duplicating method, wherein information relating to an owner of the original data is recorded as the electronic watermark information. In a storage medium duplication method for copying original data from a first storage medium storing original data to a second storage medium,
The digital watermark information is embedded and recorded in the data recorded on the second storage medium by a predetermined recording method, and the digital watermark information is copied to the copy destination as it is even when further copying is performed from the second storage medium. Using the recording method
A storage medium duplication method, wherein information relating to a distribution destination of a second storage medium is recorded as the electronic watermark information.   3. A storage medium duplicating machine control program for executing the storage medium duplicating method according to claim 1 or 2, wherein the first storage medium drive for reading from the first storage medium and the second storage medium are read. A storage medium duplicating machine control program for controlling a storage medium duplicating machine having a second storage medium drive for writing. In the storage medium duplication machine which implements the storage medium duplication method according to claim 1 or 2,
A first storage medium drive for reading from the first storage medium;
A second storage medium drive for writing to the second storage medium;
A storage medium duplicating machine, comprising: an electronic watermark information medium slot for mounting at least an electronic watermark information medium in which the electronic watermark information is recorded.   5. The storage medium duplicating machine according to claim 4, wherein digital watermark information generation software for generating the digital watermark information is further recorded on the digital watermark information medium, and the digital watermark information medium is stored in the digital watermark information medium slot. A storage medium duplicating machine configured to be unable to copy data from the first storage medium to the second storage medium unless it is mounted.