JPH11328846A - Recorder and copy limiting method having copy limitation function for information record medium, copy limiting storage medium and information write-in device in copy limiting storage medium used for it and charging method of copyright rental fee related to information record medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To limit a copy for recording information in an information record medium by using a copy limiting storage medium. SOLUTION: Information contents discriminative information for specifying the recording contents of the information record medium given to the information record medium 1 or beforehand recorded on the information record medium 1 is sent from a recognition means 3 to a copy permission/prohibition control means 5. Further, a discriminative information gain means 4 gains the discriminative information stored in the copy limiting storage media 2 constituting a part of the information record medium 1 or distributed accompanying the information record medium 1 to send out it to the copy permission/prohibition control means 5. The copy permission/ prohibition control means 5 collates both information to permit that the recording information of the information record medium 1 is copied to another record medium 6 only when both contents agree is recognized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for restricting copying of an information recording medium.

[0002]

2. Description of the Related Art For copying reproduction information from a compact disk or the like, SCMS (Serial Copy) is used.
An arrangement is made by a method called “Management System”, which limits digital copies from copyrighted music software to one generation.

[0003]

By the way, in a situation where high-quality copying can be easily performed due to the progress of digitization of information, unauthorized copying of a copyrighted work is performed in order to enable a copyright owner to exercise his / her right. Although there is a need to prevent such a problem, there is a problem in the conventional devices and systems that there is no effective means for preventing the recording information of the information recording medium from being unconditionally copied to another recording medium.

[0004] In other words, there is a request from the copyright holder that the usage fee should be properly received by charging / collecting the copy, and from the user side, the information is recorded from the information recording medium by a valid copy operation. There is a demand to read out and record it on another recording medium.

[0005] Therefore, an object of the present invention is to restrict copying of information recorded on an information recording medium by using a copy restricting storage medium.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an information recording medium which is provided on an information recording medium or which is pre-recorded on the information recording medium for specifying the recording content of the information recording medium. Obtain the content identification information and the identification information that forms part of the information recording medium or is stored in the copy restriction storage medium distributed along with the information recording medium, compares them, and compares the contents. Only when a match is found, copying of the information recorded on the information recording medium to another recording medium is permitted.

Therefore, according to the present invention, unless a copy-restricting storage medium storing information identification information for specifying the recorded content is used for the information recording medium, the recording of the information recording medium is not performed. Information cannot be copied to another recording medium.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory diagram of a basic configuration according to the present invention. In the present invention, a copy storing identification information (information content identification information) for specifying the recorded content of an information recording medium 1 is described. It is an object of the present invention to prevent the recording information of the information recording medium 1 from being unconditionally copied to another recording medium by using the storage medium 2 for restriction.

Although the shape of the information recording medium 1 is shown in a disk shape in the figure, any shape may be used as far as the present invention is concerned, and various shapes such as a tape shape, a sheet shape, a card shape and the like are possible. Yes, it can be widely applied to optically readable disks, tapes, magnetic tapes and the like. Also,
Since the information recorded on the information recording medium 1 is not limited to a specific type, it can be used for recording all kinds of information such as video information, audio information, and data used in computer equipment. The information recording medium 1 may be a medium that can only reproduce information or a medium that can record or additionally record information.

The copy restriction storage medium 2 constitutes a part of an information recording medium (the information recording medium 1 or an information recording medium for recording information recorded on the information recording medium 1) or is attached to the information recording medium 1. And distributed. That is, a method of using a part of the recording area of the information recording medium 1 as a storage medium for duplication restriction, and a method of using the storage medium for duplication restriction 2 different from the information recording medium 1 (for example, a memory sticker or a memory card). ) May be a method of distributing the information by attaching it to the information recording medium 1 or a method of using a part of the recording medium for recording the recording information of the information recording medium 1 as a copy restriction storage medium.

The information content identification information (in the figure, referred to as “ID”) for specifying the recorded content of the information recording medium 1 is given to the information recording medium 1 by a method (for example,
A method of attaching to the outer surface of the information recording medium 1, packaging, accessories, and the like. ) And a method of recording this as recording information on the information recording medium 1. The latter method is preferable in consideration of the inseparability between the information recording medium 1 and the information content identification information. For example, a method of storing the information content identification information in a specific recording area in the information recording medium 1, a method of embedding the information recording medium 1 by superimposing it on the recording information by an electronic watermark (a method using a spread spectrum method or the like). According to the latter method, the information contents can be identified without providing a specific storage area in the information recording medium and without adversely affecting the information recorded on the information recording medium. There is an advantage that information can be recorded on an information recording medium.

The information content identification information recognizing means 3 sends information indicating the result of recognizing the information content identification information to the copy permission / prohibition control means 5 at the subsequent stage. As for the information content identification information, a method of causing the recognition means 3 to recognize information manually input by the user by key operation or the like, and a method of automatically inputting the information content identification information to the recognition means 3 for recognition. As an example of the latter, when information content identification information is recorded on the information recording medium 1 as information based on a digital watermark, a method of identifying information embedded and superimposed on the recording information (in this case, Can extract identification information from the reproduction information of the information recording medium 1), and also recognizes identification information reading means (optical reading type, magnetic type, capacitance type, etc.) for reading the information. 3 is provided.

The identification information acquiring means 4 for acquiring the identification information stored in the copy restriction storage medium 2 takes out the identification information from the copy restriction storage medium 2 and transfers it to the copy permission / prohibition control means 5 in the subsequent stage. To send to. The method of extracting the identification information is performed by wire communication or wireless communication, but is preferably performed by a non-contact method.

The copy permission / prohibition control means 5 includes the recognition means 3
The content of the information content identified by the identification information and the content of the identification information acquired by the identification information acquiring means 4 are collated, and only when the coincidence is confirmed, the recorded information of the information recording medium 1 is separated. Is permitted to be copied to the recording medium 6.

It should be noted that the term "match" of the collation result in the present invention is not limited to a formal match of information but a concept including a substantial match of information contents.
For example, if the result (information) obtained by performing an operation on the identification information extracted from the copy-restriction storage medium 2 through a hash function and the information content identification information match, the content of both information is one. I am doing
No apparent match is recognized with the identification information itself, but such a case is also included in the concept of match in the present invention. still,
In the method of interposing a one-way (or irreversible) function in the comparison of two pieces of information, when the reference information itself for the function value (information after passing through the function) leaks, the reference information is passed through the function. Utilizes the fact that it does not match the original reference information, and is a secure method in terms of security.

The information read from the information recording medium 1 is sent to the reproduction processing means 7, and the presence or absence of recording on another recording medium 6 is determined via a switch (SW). In the figure, the permission and prohibition of duplication are conceptualized by switch symbols.

For example, when the identification information stored in the copy restriction storage medium 2 is “ID”, the identification information and the information content identification information I read from the information recording medium 1 are stored.
The copy permission / prohibition control means 5 compares D with D, and a match between the two information is recognized, so that recording of the reproduction information on the recording medium 6 is permitted. If the identification information stored in the copy-restriction storage medium 2 ′ is “ID ′”, the identification information and the information content identification information ID read from the information recording medium 1 are copied / authorized. Since the prohibition control means 5 performs collation and a mismatch between the two information is recognized, the recording of the reproduction information on the recording medium 6 is prohibited.

The above methods are summarized as follows (1) to (3).

(1) Information content identification information for specifying the recorded content of the information recording medium 1 is defined in advance.

(2) When distributing the information recording medium 1, the information content identification information of (1) is added to the information recording medium 1 or recorded on the information recording medium, and information having the same content as the identification information is copied. After being stored in the storage medium 2 for restriction,
The copy restriction storage medium 2 is included in a part of the information recording medium 1 or distributed together with the information recording medium.

(3) The information content identification information of the information recording medium 1 and the identification information stored in the copy restriction storage medium 2 in (2) above are collated at the time of recording. Only when permitted, copying of the recording information of the information recording medium 1 to another recording medium 6 is permitted.

The recording device 8 having the function of restricting duplication of the information recording medium 1 according to the present invention, as shown in FIG. The permission / prohibition control means 5 is provided, and the information content identification information of the information recording medium 1 is compared with the storage information of the copy restriction storage medium 2, and only when the two information coincide with each other is recognized. Since the configuration is such that recording of one piece of recording information on another recording medium 6 is permitted, it is possible to prevent unauthorized duplication.

Incidentally, in order to further enhance the duplication restriction function, a recording device which is permitted to copy the recording information of the information recording medium 1 to another recording medium 6 is limited to a device other than the recording device. In this case, it is preferable to restrict the information recording medium 1 from being copied.

That is, in this case, the copy restricting storage medium 2
It is assumed that device identification information for identifying a recording device permitted to copy the recording information of the information recording medium 1 to another recording medium 6 is stored in advance, or that the device identification information can be additionally written. Is done.

Then, the apparatus identification information stored in the copy-restriction storage medium 2 is obtained, and the information is compared with the apparatus identification information previously assigned to the recording apparatus. Only in this case, control is performed such that copying of the recording information of the information recording medium 1 to another recording medium 6 is permitted.

It is to be noted that the copy restriction storage medium 2 has a storage means or a storage area for storing or additionally recording the device identification information, and at this time, a dedicated storage for writing the device identification information. There are a method of providing the means and a method of using a part of the storage area of the existing medium.

FIG. 2 shows an example of the data structure of the copy restricting storage medium 2. The first storage area 2_1 is a storage area for the information content identification information, and the second storage area 2_2.
Is a storage area for the device identification information. The second storage area 2_2 can store up to a fixed number of recording devices (in the figure, “device Ai” (i = 1, 2,..., N)). Consideration is given so that the recording information of the information recording medium 1 can be copied by a plurality of recording devices owned by the user.

In order to store the copy management information (for example, the number of permitted duplications of the information recording medium, the permitted contents, etc.), a key for decryption of the encryption processing applied to the recorded information of the information recording medium, etc. It is preferable to clarify the contents of the copy restriction by providing the third storage area 2_3, and to restrict the copying of the information recording medium only within the range of the copy permission. Further, a data structure may be adopted in which both pieces of information are stored in association with each other so that such duplication management information can be individually set for each device indicated by the device identification information.

As described above, the information content identification information is associated with the device identification information and stored in the copy restriction storage medium 2, and then the copy restriction storage medium 2 is distributed together with the information recording medium 1. The device identification information stored in the copy-restriction storage medium 2 is read out, the information is compared with the device identification information given to the recording device in advance, and the information is read only when the contents match. When control is performed so that copying of the recording information of the recording medium 1 to another recording medium 6 is permitted, the duplication of the information recording medium is performed unless a correct combination of the information recording medium and the recording device used for duplication is obtained. You will not be able to do it. For example, as shown in FIG. 1, the device identification information given to the recording device 8 in advance is “A1”, the information content identification information of the copy restriction storage medium 2 is “ID”, and the device identification information is “id = A1 ”, and the information content identification information of the copy restriction storage medium 2 ″ is“ I
D ”and the device identification information as“ id = A2 ”,
Only in the combination of the information recording medium 1 and the duplication restriction storage medium 2, duplication in the recording device 8 is permitted.

Further, regarding the management of the device identification information, a method for writing the device identification information to the copy restriction storage medium only before the distribution of the copy restriction storage medium is described. There is a method in which the device identification information can be stored in the copy restriction storage medium even if it is a specific recording device even after distribution, and the former method is preferable in terms of strict management, but the user's The latter method is preferable from the viewpoint that it is easy to deal with a change in the recording device possessed. In this case, the apparatus is configured such that another apparatus identification information can be stored in the copy restriction storage medium only by the recording device indicated by the information first stored in the copy restriction storage medium as the apparatus identification information ( For example, in the example shown in FIG. 2, the device A1 stored at the start address
, The other device identification information (A2 to AN) can be stored in the copy restriction storage medium 2. )
Thus, a priority can be given to a specific recording device.

FIG. 3 shows a configuration example 8A of a recording device provided with a device identification information writing means 9 for storing or additionally writing the device identification information in the copy-restriction storage medium 2. The apparatus identification information (this is "id '") input from the input means 10 to the copy permission / prohibition control means 5
It is written. ) Is sent to the device identification information writing means 9 and then stored in the copy restriction storage medium 2 (for example, FIG. 2).
See the second storage area 2_2. ).

In order to control the writing of the device identification information to the copy restriction storage medium 2, the recording device indicated by the device identification information stored first in the copy restriction storage medium 2 should be given priority as shown in the figure. Is provided with a write restricting means 11, which includes information initially stored in the copy restricting storage medium 2 as device identification information, and device identification information previously given to the recording device (in FIG. Is transmitted). Thereby, the write restricting unit 11 collates the two information, and when it is determined that the two contents match, permits the device identification information writing unit 9 to write the device identification information to the copy restriction storage medium 2, If a mismatch is found between the two, the writing is prohibited (in the figure, permission and prohibition are conceptualized by a switch (SW) symbol).

FIG. 4 shows an information writing device 12 for writing information (identification information) to the copy restricting storage medium 2 exclusively. The information content identification information (ID) and the device identification information (id) are shown. Identification information writing means 13 for storing in the copy restriction storage medium 2 in association with
have.

The identification information writing means 13 includes information content identification information (ID) relating to the information recording medium 1 and device identification information (i) of a recording device used by a user of the information recording medium 1.
After d) is input and these are stored in the copy restriction storage medium 2, the copy restriction storage medium is delivered to the user. As for the information content identification information (ID), as described above, the information recorded on the information recording medium 1 is read out by the recognizing means 3 by an electronic watermark or the like, and is then sent to the identification information writing means 13. When adopted, it is convenient because the user only needs to mount the information recording medium 1 on the information writing device 12.

The communication between the information writing device 12 and the copy-restriction storage medium 2 may be information transmission by wire or terminal connection. However, it is easier to employ a non-contact type communication means. . For example, a non-contact type communication unit 14 using electromagnetic waves such as infrared rays or weak radio waves, voices, or the like is provided in the information writing device 12, and the copy restriction storage medium 2 is provided with a communication unit 15 corresponding thereto. A configuration in which the identification information writing unit 13 stores the identification information (information content identification information or device identification information or both information) in the storage unit or the storage area 2a of the copy restriction storage medium 2 via the communication units 14 and 15. And

The copy-restricting storage medium 2 is a portable type such as a card-type medium, or a part of another recording medium 6 for recording information on the information recording medium 1 is used for copy-restriction storage. There is a form in which a special copy restriction storage medium is not required by using it as a medium.

FIG. 5 is a diagram showing a royalty fee for the information recording medium 1 using the copy-restricting storage medium 2 for giving permission to copy the information recording medium 1 or managing the number of permitted copies. It is a figure for explaining a charge collection method, and a subject is a user using the dubbing device 16, a charge collection organization using the information writing device 12, and a copyright holder.

The "dubbing device" as used herein is a device including a recording device having the above-described duplication restriction function.
In addition to a device designed as a device capable of recording and reproduction from the beginning, a reproduction device designed separately and a recording device (a device capable of recording only or a device capable of recording and reproduction) are connected by communication. An apparatus constituting one recording / reproducing system is included.

First, the user who has purchased the information recording medium 1 notifies the information collection identification information (ID) for specifying the recorded contents of the information recording medium 1 to the charging collection institution, Pay for the copy. If the device identification information (id) is required to specify the dubbing device 16 used by the user, the information must be notified to the charge collection agency.

The charge collection organization uses the information writing device 12 to store the information content identification information (ID) in the copy-restriction storage medium 2, and then hands it over to the user. still,
When the device identification information (id) is stored in the copy restriction storage medium 2, the information content identification information (ID) and the device identification information (id) are stored in the copy restriction storage medium as indicated by the broken arrow in FIG. 5. After being stored in the medium 2, it is handed over to the user.

When the user mounts the copy-restriction storage medium 2 on the dubbing device 16, the information content identification information is read out from this. Then, the information is stored in the information recording medium 1.
Only when the information coincides with the identification information for specifying the recording content of the information recording medium 1,
Is permitted in the dubbing device 16.

When the collation of the device identification information is required, the device identification information indicating the device (recording device) used by the charging collection organization or the user is stored in advance in the copy restriction storage medium 2.
Is stored in the storage medium 2 for copy restriction.
Is attached to the dubbing device 16, the information content identification information and the device identification information are read from the dubbing device 16, and these information are given to the identification information for specifying the recorded content of the information recording medium 1 and the dubbing device 16 to be used. The dubbing device 16 is allowed to copy the recording information of the information recording medium 1 to another recording medium 6 only when the identification information matches the identification information of the device.

Then, the charging collection agency calculates the distribution amount to the copyright holder from the purchase price of the copy restricting storage medium 2, and returns the profit to the copyright holder using an online automatic remittance system or the like.

Thus, by such a charge collection method, it is possible to realize the protection of the copyright holder and the appropriate charge for the information recording medium. That is, with the conventional technology, there is no effective means for collecting charges for copying in package media such as compact discs.
In addition, it was difficult to distribute the collected fees fairly to the copyright holders. However, according to the present invention, it is possible to collect charges when distributing the copy-restriction storage medium, and to illegally copy the information recording medium. Acts can be prevented.

[0045]

6 to 21 show an embodiment in which the present invention is applied to a recording / reproducing system for a compact disk (hereinafter abbreviated as "CD").

In the present embodiment, identification information (for example, an ISRC code (International S
standard Recording Code: International Recording Standard Code)
In addition to embedding in audio information by a digital watermarking technique called “termmark”, information having the same content as the identification information is stored in a memory sticker (corresponding to the above-mentioned copy-restriction storage medium 2) and sold together with the CD. I do.

The "memory sticker" is a sticker having a built-in information storage means, and includes, for example, a memory chip 18 and a communication interface unit 19 as in an example 17 shown in FIG. And the memory chip 18
Identification information (hereinafter referred to as "M (us
ic) -ID "or" M-ID ". ) And the identification number (hereinafter, “R (recorder) -ID” or “R
-ID ". ) Is provided, and in this example, identification information of up to five recording devices can be stored. These pieces of identification information can be taken out of the memory seal 17 via a communication interface 19 of a non-contact type (such as an electromagnetic wave or a sound wave).

If the purchaser of the CD to which the memory sticker 17 is attached has a plurality of kitchens for use in recording the reproduction information of the CD, the identification number “R-ID” assigned to these devices is provided. Is added to the memory seal 17, thereby limiting the number of devices capable of copying the information of the CD to five.

FIG. 7 shows a CD player as a player 20, mini-discs (hereinafter abbreviated as "MD") 21 and 1
"CD-R (Compact Di)
This shows an example in which a recorder of “skRecordable” 22 is a recording device (recording device) 23 and both are connected by an analog or digital communication interface to constitute a dubbing device.

In the figure, the CD 24 is a regular purchase, and includes identification information M-ID, for example, an ISRC code (a 12-character code assigned to each CD title).
Is embedded as digital watermark information, and is embedded in audio information as information that cannot be heard by human ears.

Also, a memory seal 1 for the CD 24
Reference numeral 7 is attached to the jacket 25 of the CD or the like to prevent loss, and the M-ID of the CD 24 is stored in the storage area 18a. The information may be stored at the time of manufacture of the CD or at a later time, but the information must be stored in the memory sticker 17 at least at the time of sale of the CD.

As for the identification number R-ID of the device, nothing is stored at the point of sale of the CD 24, and the storage area 18b is empty.

The purchaser of the CD 24 reproduces the recording information of the CD with the reproducing device 20 and then uses the recording device 23 to reproduce the MD2.
1 (for example, MD2 format disc) or CD-
R22 (for example, an SACD-R format disk), and these recording medium disks are mounted on, for example, a portable device (reproducer) 26 or an in-vehicle device 27 (a stereo device or the like) to store music information and the like. It is intended to be heard.

Therefore, the purchaser first brings the memory sticker 17 close to the recorder 23 and stores the identification number R-ID unique to the recorder 23 in the memory sticker 17. That is, the recording device 23 has a communication function with the memory sticker 17, and writes the identification number of the recording device 23 in the storage region 18b of the memory sticker 17, or stores the identification number in the storage region 18a of the memory sticker 17. Non-contact communication interface unit 23a for reading M-ID
(Corresponding to the communication interface unit 19).

Thus, the identification number R-ID of the recorder 23
Is stored in the memory sticker 17, and the information and the CD24 are stored.
Is established in the memory seal (that is, it becomes clear which CD information can be copied by which device).

At the time of dubbing, the information on the CD 24 is reproduced by the reproducing device 20, and then the reproduced audio signal is transmitted to the recording device 23 by wire or wireless communication. At this time, the identification information M-ID of the CD 24 by the digital watermark is also recorded on the recording device 2 at the same time.
3 is transmitted.

FIG. 8 is an explanatory diagram of a method of inserting the identification information M-ID in a CD manufacturing process.

In the manufacturing apparatus 28, the identification information M-ID
To a digital watermark generator (or encoder) 2
9 is superimposed on the signal from the source sound source 30 (in the figure, an adder (31)
Indicated by the symbol. ), The CD mastering device 32
To send out a metal master.

The digital watermarking method includes, for example, the following method.

(I) A method using spread spectrum.

(II) Phase modulation of a carrier (carrier) (PSK (Phase Shift Keying))
how to.

First, the method (I) includes, for example, PN (P
pseudo Noise or Pseudo ran
There is a method called direct spreading in which an EOR (exclusive OR) of pseudo noise called a dom noise (Noise) code and identification information is obtained.

FIG. 9 schematically shows frequency characteristics by taking the frequency f on the horizontal axis and the signal amplitude on the vertical axis.
The graph curve Gs shows the signal of the source sound source 30, and shows a state in which the minute signal SS is superimposed on the signal as a signal of the electronic watermark. In this case, the amplitude of the small signal SS has a substantially constant value regardless of the signal level of the source sound source 30.

When the signal level of the source sound source 30 becomes low, the small signal SS is changed according to the signal level of the source sound source 30 so that the small signal SS is not heard as noise.
There has been proposed a method of changing the frequency characteristic of S, which is shown in a block diagram (that is, the generator 29).
FIG.

In the figure, the operation result after the identification information M-ID and the PN code have been sent to the EOR unit 33 is sent to the filter circuit 34. A signal from the source sound source 30 is transmitted by an FFT (Fast Fourier Transf).
orm: Fast Fourier Transform) processing unit 35, where the frequency characteristics are measured, and then the filter circuit 34
Is used as a characteristic control signal.

FIG. 11 schematically shows the frequency characteristics with the horizontal axis representing the frequency f and the vertical axis representing the signal amplitude. The graph curve Gs indicates the signal of the source sound source 30, and Thus, the minute signal SS is superimposed as a digital watermark signal. In this case, the amplitude of the small signal SS changes according to the signal level of the source sound source 30. For example, in a band where the signal level is high, the amplitude of the signal SS is relatively large, and conversely, in a band where the signal level is low. Then signal SS
Is controlled so that the amplitude becomes relatively small. This makes it possible to minimize the influence of the digital watermark on the signal of the source sound source 30.

In the above method (II), for example, as shown in FIG. 12, after the identification information M-ID is sent to the phase modulation (PSK) section 36 and the carrier wave of the frequency fc is phase-modulated, This is sent to a VCA (voltage controlled amplifier) section 37 at the subsequent stage.

The signal from the source sound source 30 is FF
After passing through the T processing unit 38, it is used as a gain control signal of the VCA unit 37.

FIG. 13 schematically shows the frequency characteristics with the horizontal axis representing the frequency f and the vertical axis representing the signal amplitude. The graph curve Gs indicates the signal of the source sound source 30, and Thus, the minute signal SS is superimposed as a digital watermark signal.

In this case, the signal SS can be controlled so as not to be conspicuous when the signal level of the source sound source 30 is lowered by keeping the signal SS within a predetermined band centered on the frequency fc. According to the method (II), the circuit configuration is relatively simple, and there is an advantage that erroneous detection is unlikely to occur for a signal having a rare phase discontinuity (such as phase inversion) such as a music signal. .

FIG. 14 shows, as an example of the configuration of a writing device for writing the identification information M-ID of the CD on the memory sticker 17, a device for storing the identification information on the memory sticker when the CD is manufactured.

In the writing device 39, the identification information M-
After the signal obtained by encoding the ID by the digital watermark generator 29 is superimposed on the signal from the source sound source 30 (indicated by the symbol of the adder (31) in the figure), the signal is transmitted to the mastering device 32 of the CD. The configuration shown in FIG. 8 is the same as that shown in FIG.
The -ID is stored directly in the memory chip 18 as indicated by a solid line, or is stored by non-contact recording in the memory chip 18 via the communication interface unit 19 as indicated by a dashed line. In the former case, after the identification information M-ID is written in the memory chip 18 and the memory sticker 17 is created using the same,
In the latter case, there is a difference that the identification information M-ID is written to the memory seal 17 in which the memory chip 18 is already housed.

FIGS. 15 and 17 show an example of the configuration of a writing device used by a service company (a store, a convenience store, etc.) that sells, charges, and collects CDs.

In the writing device 40 shown in FIG. 15, a part of the information is reproduced by passing the target CD 24 to the CD player 41 and is transmitted to the digital watermark decoder 42. The decoder 42 outputs the original identification information M-
The ID is restored, and the restored information is sent to the communication interface unit 43 and the processing unit 44 for the identification information and the purchase record information.

FIG. 16 shows an example of the configuration of the decoder 42, and corresponds to the configuration of the encoder shown in FIG.

The digital watermarked identification information is sent to the filter circuit 45 and the FFT processing section 46 together with the reproduced audio signal. After measuring the frequency characteristics of the input signal, the FFT processing unit 46 sends a control signal to the filter circuit 45 via the inverse characteristic processing unit 47. That is,
In the encoding process, the filter circuit 45 is controlled so as to have a frequency characteristic completely opposite to the characteristic of the filter circuit 34 controlled by the FFT processing unit 35, and an exclusive OR of the signal subjected to the inverse correction and the PN code is calculated. The original identification information M-ID is reproduced by being obtained by the EOR unit 48.

The identification information is transmitted to the communication interface unit 43 as shown in FIG.
To the communication interface section 19 of the memory seal 17
Is stored in a predetermined storage location in the memory chip 18 via the.

The identification information and purchase record information processing unit 44 records and manages the identification information stored in the memory chip 18 and the purchase record information for which payment has been made in association with each other. The royalty is returned to the copyright holder from the collected amount.

As shown in FIG. 17, the user inputs a credit card number to the identification information and purchase record information processing device 44, or pays the price using a small amount billing card, electronic money, or the like. After that, it is also possible to manage the purchase information via the network and to debit the payment by online settlement.

As described above, the user obtains the memory sticker on which the CD and its identification information M-ID are recorded.

FIG. 18 shows the structure of the main part of the recorder 23. A reproduction signal (including digital watermark information) from the reproducer 20 is sent to the recording signal processor 49 and the decoder 42.

A space for communication with the memory sticker 17 is provided in a part of the casing of the recording device 23, and the memory sticker 17 is placed in the space or the memory sticker 17 is brought close to a predetermined position. Communication can be performed between the recording device 23 and the memory sticker 17.

The identification information written on the memory sticker 17 is sent from the communication interface unit 19 in the memory sticker 17 to the collating unit 50 after passing through the communication interface unit 23a of the recorder 23.

CD 24 restored by decoder 42
The identification information M-ID of the communication interface unit 2 is transmitted to the collation unit 50.
Check with the information from 3a.

The collating unit 50 collates the identification number R-ID of the recorder 23 with the identification number from the communication interface unit 23a, and records only when the identification information of both the CD and the device match. A duplication permission signal is sent to the signal processing unit 49 to permit the reproduction information of the CD 24 to be recorded on the recording medium (in this case, the MD 21 or the CD-R 22).

The writing of the identification number R-ID of the recorder 23 into the memory chip 18 is performed from the write processing unit 51 via the communication interface units 23a and 19.

FIG. 19 is a flowchart showing an example of processing in the recording device 23. After detecting that the recording start button or the standby button has been pressed in step S1, the recording device 23 and the memory sticker 17 are connected in the next step S2. Start communication.

Then, in the next step S3, the memory sticker 17 is brought close to the recording
Information M-ID and device identification number R stored in
After reading the ID via the communication interface units 19 and 23a, the process proceeds to step S4.

In step S 4, digital watermark information is detected from the reproduction signal of the CD 24, and the identification information is restored by the decoder 42.

In the next step S5, the collating unit 50 determines whether or not the identification number of the own device (recording device 23) matches the identification number of the device read in the previous step S3. If it is determined that the two identification numbers match, the process proceeds to the next step S6, but if it is determined that they do not match, the process proceeds to step S7 to prohibit the recording of the reproduction information.

In step S6, the collating unit 50 determines whether or not the identification information restored in step S4 matches the identification information read in step S3. If it is determined that the two pieces of identification information match, the process proceeds to the next step S8, but if it is determined that they do not match, the process proceeds to step S9.
Proceed to to prohibit the recording of reproduction information.

In step S8, the recording of the reproduction information is permitted, so that the information can be recorded on the MD 21 or the CD-R 22.

Then, in the next step S10, it is determined whether or not the stop button has been pressed. If the stop button has been pressed, the recording operation is stopped and the above-described series of processing ends, but the stop button has not been pressed. In this case, the process returns to step S4.

In the above description, an example is shown in which a memory sticker is used as a copy-restriction storage medium. However, the present invention is not limited to this. For example, a part of a MD recording area for recording reproduction information of a CD may be used. Identification information may be recorded.

That is, an area (identification information storage area) for recording these pieces of identification information is provided on an MD recording logical format (for example, an MD2 format capable of high-density recording), and the user can use the CD. Bring the MD at the time of purchase, have the writing device 40 record the identification information M-ID in the identification information storage area of the MD, and store the identification number R-ID of the device by itself in the identification information of the MD. It is configured so that it can be recorded in the area.

In this case, as shown in the recorder 23A of FIG. 20, a recording / reproducing processing unit 52 for recording information on the MD 21 and reproducing information from the MD 21 is provided. CD read from information storage area
And the identification information of the device are sent to the matching unit 50.

The collating unit 50 stores the identification information and the CD
24, the identification information M-ID restored by the decoder 42 from the reproduction information 24, and the identification number R-ID unique to the recorder 23.
And a control signal is sent to the recording / reproduction processing unit 52 to permit recording of the reproduction information of the CD 24 on the MD 21 only when the identification information is found to match. If a mismatch is found, the recording on the MD 21 is prohibited.

In this example, there is no need for a dedicated communication means for connecting the copy-restriction storage medium and the recording device 23A, a card slot, or the like, and the recording / reproducing function of the MD originally provided in the recording device 23A is used. Therefore, there is an advantage that the configuration is simple and the versatility is high.

In addition, a personal authentication card can be used as a copy restriction storage medium. In this case, as shown in a recording device 23B of FIG.
(Central Processing Unit) A personal identification card 55 having a memory chip 53 and a memory chip 54 has a service provider store the identification information M-ID of the CD in advance, and stores the identification number R-ID of the recorder 23B in the memory. It is written on the chip 54.

At the time of dubbing, the user attaches or approaches the personal authentication card 55 to the recording device 23,
The identification information M-ID and the identification number R-ID are read from the memory chip 54 via the CPU 53, and
Here, dubbing permission / prohibition is defined according to the result of collation with the identification information of the CD from the decoder 42 and the identification number unique to the recording device 23.

In the above description, C is applied to the embodiment of the present invention.
Although the description mainly focuses on duplication of D information, the invention is applicable not only to audio signals but also to video signals and the like. The information medium conforms to, for example, a DVD (digital video disc) or DV (digital video) format. Digital video tape and the like.

Further, management information indicating the number of permitted copies in accordance with the payment price of the user is stored in the copy-restricting storage medium, and the collating unit manages the information each time the information is copied to the recording medium. By manipulating the information to reduce the number of permitted duplications, the number of duplications can be limited, and billing / collection can be performed for each copy.

[0103]

As is apparent from the above description, according to the first and second aspects of the present invention, information content identification information for specifying the recorded content is stored in the information recording medium. The information recorded on the information recording medium cannot be duplicated on another recording medium unless the duplication-restriction storage medium is used, so that only a user who has an appropriate duplication-restriction storage medium for the information recording medium is authorized. Duplication can be performed.

According to the third to fifth aspects of the present invention, by limiting the information recording medium and the recording device to be used to a specific combination using the copy restriction storage medium, the copy restriction can be stricter.

According to the sixth and eleventh aspects of the present invention, in a device other than the recording device indicated by the information initially stored in the copy restriction storage medium, another device identification information is stored in the copy restriction storage medium. This makes it possible to prevent the device identification information in the copy restriction storage medium from being rewritten inadvertently using a plurality of recording devices.

According to the seventh to ninth aspects of the present invention, the inseparability between the identification information and the information recording medium is assured by recording the identification information as information based on a digital watermark so as to be superimposed on the information on the information recording medium. And there is no need to provide a dedicated storage area for identification information in the information recording medium.

According to the tenth aspect of the present invention, a plurality of recording devices used by a user can be provided by providing device identification information writing means for storing or additionally writing device identification information on a copy-restriction storage medium. After that, it can be registered as a recording device to which duplication permission has been given.

According to the twelfth aspect of the present invention, the information content identification information and the device identification information are stored in the copy restriction storage medium in association with each other, so that duplication of the information is not permitted except for the combination of the two information. Can be restricted.

According to the thirteenth aspect of the present invention, the processing is speeded up by storing the identification information in the copy restriction storage medium via the non-contact type communication means, and the copy restriction storage medium is easily handled. can do.

According to the fourteenth aspect of the present invention, it is convenient to carry the storage medium for copy restriction, and a part of the recording area in the copy destination recording medium can be used as the storage medium for copy restriction. .

According to the fifteenth aspect of the present invention, the information content identification information is written into the copy restricting storage medium in exchange for the payment of the user, so that charging / collection for the copy permission becomes possible. A user who does not have a storage medium for restriction cannot copy the information storage medium alone.

According to the sixteenth aspect of the present invention, the information recording medium and the recording apparatus are written by writing the information content identification information and the apparatus identification information to the copy restriction storage medium in exchange for the user's payment. It becomes possible to charge and collect the specified copy permission, and it becomes impossible to copy the information recording medium other than the recording device indicated by the device identification information stored in the copy restriction storage medium.

According to the seventeenth aspect, before the user uses the information recording medium, the apparatus identification information of the used apparatus is stored in advance in the copy restriction storage medium,
Authorization of device registration can be given to the user.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a basic configuration according to the present invention.

FIG. 2 is an explanatory diagram showing an example of a data structure of a copy restriction storage medium.

FIG. 3 is a diagram illustrating a configuration example of a recording apparatus according to the present invention.

FIG. 4 is a diagram showing a configuration example of an information writing device according to the present invention.

FIG. 5 is an explanatory diagram illustrating a method of collecting a charge for a copyright royalty for an information recording medium.

6 shows an embodiment of the present invention together with FIGS. 7 to 21. FIG. 6 is an explanatory diagram of a memory seal.

FIG. 7 is a diagram illustrating a configuration example of a dubbing device.

FIG. 8 is an explanatory diagram showing a method of inserting identification information in a CD manufacturing process.

FIG. 9 is a schematic graph showing frequency characteristics of a direct spreading method.

FIG. 10 is a diagram illustrating the principle of a variable characteristic spread spectrum method.

11 is a schematic graph showing frequency characteristics for the configuration of FIG. 10;

FIG. 12 is a diagram illustrating the principle of a method using phase modulation.

FIG. 13 is a schematic graph showing frequency characteristics for the configuration of FIG. 12;

FIG. 14 is a diagram illustrating a configuration example of a writing device.

FIG. 15 is a diagram illustrating another example of the writing device.

FIG. 16 is a diagram illustrating a configuration example of a decoder.

FIG. 17 is a diagram showing a modification of the writing device of FIG. 15;

FIG. 18 is a diagram illustrating a configuration example of a recording machine.

FIG. 19 is a flowchart illustrating a processing example of a recording machine.

FIG. 20 is a diagram showing a modification of the recording machine.

FIG. 21 is a diagram illustrating a configuration example of a recording device when a personal authentication card is used.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Information recording medium, 2, 2 ', 2 "... Copy restriction storage medium, 2a ... Storage means or storage area, 6 ... Another recording medium, 8, 8A ... Recording device, 9 ... Device identification information writing means , 11: writing control means, 12: information writing device, 13: identification information writing means, 16: dubbing device

 ──────────────────────────────────────────────────続 き Continuation of the front page (54) [Title of the Invention] A recording device having a function of restricting duplication of an information recording medium, a duplication restriction method, and a duplication restriction storage medium and information writing to the duplication restriction storage medium used therefor Charge collection method for copyright fees for equipment and information recording media

Claims (17)

[Claims] 1. A copy restricting storage medium for storing identification information for specifying recorded contents of an information recording medium so that the recorded information of the information recording medium is not unconditionally copied to another recording medium. A recording device having a function of restricting duplication of an information recording medium, wherein the duplication restriction storage medium constitutes a part of the information recording medium or is distributed along with the information recording medium, and is attached to the information recording medium. The information content identification information for specifying the recorded content of the information recording medium, which is recorded in advance or recorded in the information recording medium, and the identification information stored in the copy restriction storage medium are acquired and collated. A duplication limiter for the information recording medium characterized in that the recording information of the information recording medium is permitted to be copied to another recording medium only when the contents of the two are matched. Recording apparatus having a. 2. A method for restricting duplication of an information recording medium for preventing recording information on an information recording medium from being unconditionally duplicated on another recording medium. (B) At the time of distribution of the information recording medium, the information content identification information of (a) is added or recorded on the information recording medium, and the same as the identification information. After the content information is stored in the copy-restriction storage medium, the copy-restriction storage medium is included in a part of the information recording medium or distributed together with the information recording medium. Alternatively, the information content identification information pre-recorded on the information recording medium is compared with the identification information stored in the copy restriction storage medium in the recording device, and as a result, a match between the two information is confirmed. A method for restricting duplication of an information recording medium, characterized in that duplication of recording information of the information recording medium to another recording medium is permitted only in the case. 3. A recording device having a function of restricting duplication of an information recording medium according to claim 1, wherein the duplication restriction storage medium is permitted to copy information recorded on the information recording medium to another recording medium. The device identification information for specifying the recording device that is being stored is stored in advance or the device identification information can be added, and the device identification information stored in the copy restriction storage medium is acquired, and By collating with the device identification information provided in advance to the recording device, and when the contents of the two are found to be identical, it is permitted to copy the recording information of the information recording medium to another recording medium. A recording apparatus having a function of restricting duplication of an information recording medium. 4. The method according to claim 2, wherein the information content identification information for specifying the content recorded on the information recording medium and the information recorded on the information recording medium are stored on another recording medium. After associating it with the device identification information for specifying the recording device permitted to be copied and storing it in the copy-restricting storage medium, the copy-restricting storage medium is distributed together with the information recording medium. When the device identification information stored in the storage medium for restriction is read out and the information is compared with the device identification information given in advance to the recording device, if the contents match, the information recording is performed. A method for restricting duplication of an information recording medium, wherein duplication of recording information of the medium onto another recording medium is permitted. 5. A copy limiting storage medium which is distributed along with an information recording medium and stores information content identification information for specifying the recording content of the information recording medium, wherein the recording of the information recording medium is performed. A storage medium for copy restriction, comprising storage means or a storage area for storing or additionally recording apparatus identification information for specifying a recording apparatus permitted to copy information to another recording medium. . 6. The apparatus for restricting duplication of an information recording medium according to claim 4, wherein apparatus identification information for specifying a recording apparatus permitted to copy information recorded on the information recording medium to another recording medium. An information recording medium characterized in that another device identification information can be stored in the copy restriction storage medium only by the recording device indicated by the information first stored in the copy restriction storage medium. How to restrict replication. 7. A recording apparatus having a function of restricting duplication of an information recording medium according to claim 1, further comprising identification information reading means for reading information content identification information recorded on the information recording medium as information by digital watermark. A recording apparatus having a function of restricting duplication of an information recording medium. 8. The method according to claim 2, wherein the information content identification information for specifying the recorded content of the information recording medium is recorded on the information recording medium as information by a digital watermark. Characteristic method of restricting copying of information recording media. 9. A recording apparatus having a function of restricting duplication of an information recording medium according to claim 3, further comprising identification information reading means for reading information content identification information recorded on the information recording medium as information by digital watermark. A recording apparatus having a function of restricting duplication of an information recording medium. 10. A recording device having a function of restricting duplication of an information recording medium according to claim 3, for specifying a recording device permitted to copy recording information of the information recording medium to another recording medium. A recording device having a function of restricting duplication of an information recording medium, characterized by further comprising a device identification information writing means for storing or additionally recording device identification information in a duplication restriction storage medium. 11. A recording apparatus having a function of restricting duplication of an information recording medium according to claim 10, for specifying a recording apparatus which is permitted to copy the recording information of the information recording medium to another recording medium. When the information initially stored in the copy restriction storage medium is read as the device identification information of the copy restriction storage device, the device identification information indicating another recording device is changed by the device other than the recording device indicated by the information. A recording apparatus having a function of restricting duplication of an information recording medium, comprising a write restricting means for restricting the information from being stored in the information recording medium. 12. An apparatus for writing identification information on a copy-restriction storage medium according to claim 5, wherein the apparatus writes information on a copy-restriction storage medium by associating the information content identification information with the apparatus identification information. An apparatus for writing information to a copy-restriction storage medium, comprising: an identification information writing unit for storing the information in a copy-restriction storage medium. 13. An apparatus for writing information to a copy-restriction storage medium according to claim 12, wherein the identification information writing means is provided via a non-contact type communication means.
An apparatus for writing information to a copy restriction storage medium, characterized by storing information content identification information, device identification information, or both information in a storage means or a storage area of the copy restriction storage medium. 14. An apparatus for writing information to a copy-restriction storage medium according to claim 12, wherein the copy-restriction storage medium is a card-type medium or another recording medium for recording information on an information recording medium. A copy restricting storage, characterized in that the copy restricting storage medium further comprises identification information writing means for storing information content identification information or the identification information and device identification information in a storage means or a storage area of the copy restriction storage medium. A device for writing information to a medium. 15. A method for collecting a royalty fee for an information recording medium using a duplication-restriction storage medium for giving permission for duplication of the information recording medium or managing the number of permitted duplications. (A) The user who purchased the information recording medium notifies the charge collection organization of the information content identification information for specifying the recording content of the information recording medium, and pays for the copy of the information recording medium. After that, (b) the charging collection agency stores the information content identification information of (a) in the storage medium for copy restriction, and then hands the storage medium for copy restriction to the user. (B) mounting the duplication restricting storage medium on the dubbing apparatus and reading the information content identification information from the dubbing apparatus; and recording the information only when the information matches the identification information for specifying the recorded content of the information recording medium. A method for collecting a royalty fee for an information recording medium, wherein duplication of the recorded information on the medium onto another recording medium is permitted in the dubbing apparatus. 16. A method according to claim 15, wherein: (a) a user who has purchased the information recording medium specifies the recorded contents of the information recording medium. After the information content identification information and the device identification information for specifying the dubbing device used by the user are notified to the charge collection agency, and after paying for the copying of the information recording medium, (b) the charge collection agency Stores the information content identification information and the device identification information of (a) in the copy restriction storage medium, and then hands the copy restriction storage medium to the user. (C) The user sets the (b) copy restriction The information storage medium is brought closer to or attached to the dubbing apparatus, and the information content identification information and the apparatus identification information are read out from the storage medium, and the identification information and the identification information for identifying the recorded content of the information recording medium are used. The dubbing device is allowed to copy the recording information of the information recording medium to another recording medium only when the identification information matches the device identification information given to the dubbing device to be used. A method for collecting a royalty fee for an information recording medium. 17. The method according to claim 15, wherein in the step (c), before the user uses the information recording medium, the apparatus identification of the apparatus to be used is performed. The information is stored in advance in the copy-restriction storage medium, and then the copy-restriction storage medium is brought close to or attached to the dubbing apparatus, and the information content identification information and the apparatus identification information are read out therefrom. It is possible to copy the information recorded on the information recording medium to another recording medium only when it matches the identification information for specifying the recorded content of the recording medium and the identification information of the device assigned to the dubbing device to be used. A method of collecting a royalty fee for an information recording medium, wherein the method is allowed in a device.