JPH09312039A - Recording media provided with copyright protective function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assure the free copying operation with a small restriction for the user by inhibiting the illegal copying in the digital recording media such as a CD, DVD, etc., and protecting the copyright in the manner of surely collecting the copyright using charge. SOLUTION: In this recording media, the CD or the disk having the same size as that of the CD which is specified by a Red Book Standard correcting the error according to CIRC by quantizing an audio signal and indexing the program searching of the music with sub-codes P, Q, is formed to 2-layer structure to record the dynamic picture with the compression of MPEG 2. When the signal is recorded, in this case, the recording is made by performing a specific scrambling, and a copy inhibiting code mark 2 symbolized by using a box figure code discriminating the type of scramble is printed at the position around the inner peripheral side 4 of the disk.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CD as a music source, a DVD capable of recording movies for a long time, a CD-ROM for recording data, a DVD-ROM and a rewritable DVD-RAM, a DVD-R, etc. The contents of various recording media are related to the technology to protect the copyright by preventing illegal copying and transfer.

[0002]

2. Description of the Related Art Although the history of a CD as a music source has been only 10 years at the most, today, it has completely eliminated the existing media such as record boards, cassette tapes and the like. The reason for the overwhelming popularity in such a short time is that CD is a processing medium for digital data, so it is free from the noise and distortion that analog cannot avoid, and you can enjoy high-quality music easily. It is easy to use due to the fact that the pickup is non-contact compared to a record board and the size is reduced overall, and it is easier to find the beginning of a song when compared to tape. There is no doubt that goodness is a big factor, but the biggest reason is that CD-related CD-
Since ROM, CD-R, video CD, etc. could be operated with the world unified standard which is rare in the world of electronic media,
It seems that the response as a mass media has been accelerated in both hardware and software.

In addition to CDs in the world of music sources, CDs are also used in the field of computer electronic publishing.
-ROM standard Yellow Book, CD-R and Photo
In the background of world unified standards such as Orange Book of CD (electronic album of Kodak Co.) standard, it becomes huge in storage F
Computer software that has reached the limit in D etc.,
650 to facilitate the recording of other sources including images
It plays a leading role as an external storage device as a recording medium with a large capacity of MB and an inexpensive price.

FIG. 6 is an explanatory diagram of a main part of a signal processing system of a conventional CD, which is an error correction code peculiar to the CD and has two stages of Rs.
The function of "CIRC" in which the eded-Solomon codes C1 and C2 are combined by interleaving is divided into a recording system and a reproducing system, and the digital audio data input is scrambled in the first scramble section. However, the scrambling in this case is based on the simplest permutation type encryption format.
Shows 6 samples of LR channel as digital audio data input, 1st sample = AB (L), C
D (R), 2nd sample = EF (L), GH (R) ...

In this input data, the data of even-numbered sample 2 is used by the key "2 units of CIRC", that is, the target sample is 2, 5 ... At the position of (L), the GH (R) of two samples is scrambled by data rearrangement which is shifted and delayed at the position of ST (R) separated by two units from the replacement position of EF (L). There is.

The scrambled digital data is written to the disc after being subjected to CIRC processing such as interleaving or 1-frame delay of odd symbols in the recording system. In the reproducing system, the data reproduced by the optical pickup undergoes the reverse processing to that of the recording system, and the descrambling using the “CIRC unit × 2” which is the scramble decoding key in this case is performed.
By scrambling, as shown in the output (right side of the figure) of FIG. 7, the digital data returned to the same arrangement as the input is output. The scrambling here has the aspect of protecting the security of the data, but rather the purpose is to increase the interpolation length in the error correction processing, and the aspect of signal processing for smoothing the CIRC processing is stronger than security.

Next, in the case of a CD-ROM, as shown in FIG.
Is a physical format of a CD-ROM, which is defined worldwide by the Yellow Book standard. CD-
In the case of digital data mode of mode 1 in ROM,
CD-ROM in addition to CD error correction code "CIRC"
The unique ECC raises the bit error rate to the level of computer equipment. The scramble in the case of CD-ROM is
Since the information to be handled is digital data, unlike a random audio signal, the same data is likely to continue for a long time, and is used for averaging the power spectrum of the modulated signal.

The format is for 2340 bytes excluding the sync signal in the format, and the initial state (00
Output and XO shown in 15-bit feedback shift register
It is a general scramble of taking R, and the key in this case is "XOR".

In this way, the scrambled digital data is passed through the "CIRC" and EFM encoders as in the case of the CD to complete the prototype of the CD-ROM.

In other cases, if there is a CD-ROM writer, a personal CD can be used like a DTP using an ordinary personal computer.
-Things are emerging that allow the creation of ROMs. It uses a CD-R that can be written in a limited manner as defined in the Orange Book standard, and the operation is at a level that is as easy as the FD copy operation. This CD
A typical method using -R is Photo by Kodak.
There is a CD, which uses a multi-session method that allows writing as many times as there is space.

FIG. 9 shows a personal C using a conventional CD-R.
FIG. 6 is a diagram showing a procedure for producing a D-ROM. When the content is an electronic book for personal publication, image data from a video movie or a photograph to be used is compressed by a code such as JPEG to be captured by image software. Capture,
At the same time, the text part is prepared by word processing software, etc., and the authoring software (editing software) is used to perform layout editing to create an edited file, and the publishing procedure (making it uneditable) is taken.

After the publication procedure, the writing software "ISO966" is written on the CD-R mounted on the CD-ROM writer.
The contents of the publication file are written by using "0FileAccess" or the like to complete a CD-ROM having a format according to the Yellow Book standard as shown in FIG. Similarly CD
You can also use -R to make a music CD.

Thus, using the CD-R, the personal C
When creating a D-ROM, it is not easy for the user to freely select the scramble type and scramble the data, but it is easy to lock the publication file with a password. Illegal publication by the three parties can be prevented.

[0014]

However, in the above-mentioned conventional example, the CD is scrambled by a simple replacement method, but this is for increasing the interpolation length and increasing the reliability of error correction. Since the signal adjustment is strong and the encryption method used for scrambling can be easily deciphered, in order to protect the recorded data from illegal copying, you should actively protect it from the security aspect. There is a problem of weakness.

Further, in the case of a CD-ROM, scrambling is applied by the XOR encryption method, but the purpose is to average the power spectrum of the signal after modulation, that is, to maintain a high bit error rate and improve reliability. Since the aspect of signal processing is strong and the XOR system itself belongs to the simple class in the cryptosystem, there is a problem that it is not hoped that the security of recorded data will be positively protected.

Further, in the case of a CD-R for creating a personal CD-ROM, it is still in the stage of completely depending on the ready-made writing software, and only the security protection of restricting the opening of the publication file by the password is required. Not taken. Therefore, if you only register the password,
Although it is possible to prevent illegal publication by a third party to some extent, there is a problem that the data security of the contents of the CD-ROM once published cannot be protected.

Further, in addition to the above-mentioned purely technical problems, a new problem has recently been brought about by the shift of recording media to digital media. The most troublesome issue is copyright infringement, such as copyright infringement rights, and in the heyday of analog recording media such as cassette tapes and video tapes, the signal deteriorates every time copying or dubbing is repeated. Since the sound quality and image quality deteriorates, I could not get much profit from copying and dubbing.
After digital recording, there is no deterioration in sound quality or image quality due to signal deterioration. Therefore, it is possible to use digital data from a CD, MD, CD-ROM, digital tape, etc. as a source of audio data, video data or digital data. System DAT, DCC and writable MO
The data will not be deteriorated even if it is copied to a CD, a CD, a CD-ROM, etc., and the data is not deteriorated.
In CC, DAT, MD, etc., the prohibition flag allows only one generation of digital copy so that the copy from the CD cannot be further copied.
CMS (Serial Copy Management)
t System) has been introduced to provide a compromise limit to the functions related to copying.

On the other hand, there is also a method of recommending a compensation claim system for digital records (adding copyright compensation to the wholesale price of hardware and software), but both have not reached a complete agreement system. However, due to the high performance of digital recording devices, the software side, which has copyrights, strongly opposes digital copying, and due to a number of related problems, business development is not expected in the case of DAT. This is a situation in which domestic CD-Rs are in a situation where friction with the copyright owner's body may come to the surface and cause a duplicate of DAT, regardless of the type of data such as audio data, video data, digital data, etc. This is a common problem with recording media, and it is effective to protect copyrights, including the collection of copyright fees. One, there is a problem that is in the situation that put out heading agreed point of effective regulatory measures easily.

This is a DVD (Digital Video Disc) compatible with the CD released in the fall of 1996.
The situation is exactly the same for c), but for the time being, an agreement was reached to release a play-only movie DVD this fall with a copy prohibition flag system for SCMS to prevent arbitrary copying. , A rewritable PD recording system DVD-RA that is indispensable for users' long-awaited "free copying of favorite software"
The release of M would not be possible unless there was a situation in which a full agreement was reached between the software side and the hardware side as described above. According to the current outlook of a certain DVD maker in 2000, It seems that it will be later, but there is some prospect for movie DVDs and DVD-ROMs, but no prospect for rewritable DVDs, and as far as the fundamental matters are concerned, almost nothing. There is a problem that is equal to the unsolved situation.

Therefore, the object of the inventions described in claims 1 to 5 is to prohibit illegal copying in the CD-DA specified in the Red Book standard, to protect the copyright, and to ensure the copyright royalty fee. It is to provide a recording medium with a copyright protection function that can be collected.

Further, the object of the invention described in claims 6 to 9 is a CD-ROM defined by the Yellow Book standard.
Is to provide a recording medium with a copyright protection function that prohibits illegal copying, protects copyrights, and collects royalty fees.

Further, the object of the invention as claimed in claims 10 to 13 is to prohibit illegal transfer in the CD-R specified in the Orange Book standard, to protect the copyright and to surely collect the copyright fee. It is to provide a recording medium with a copyright protection function.

Further, the object of the invention as claimed in claims 14 to 17 is to protect the copyright and use the copyright by prohibiting illegal transfer in the CD-I or CD-ROM / XA defined in the Green Book standard. It is to provide a recording medium with a copyright protection function that can reliably collect fees.

Further, an object of the invention described in claims 18 to 20 is to provide a DVD in which a movie moving image by MPEG2 compression and audio by AC-3 compression in the case of NTSC are recorded.
It is to provide a recording medium with a copyright protection function that prohibits illegal copying of movie software to protect copyrights and reliably collect copyright usage fees.

Further, an object of the invention as claimed in claims 21 to 23 is to provide software, etc. in a DVD-ROM which is used as a storage device for a computer for expanding the capacity while maintaining compatibility with a CD-ROM and other DVD groups. The purpose of the present invention is to provide a recording medium with a copyright protection function that prohibits illegal copying to protect copyrights and can reliably collect copyright usage fees.

Further, in claims 24 to 26, in a DVD-RAM which is rewritable by a phase change recording / reproducing system and maintains compatibility with other DVD groups, illegal copying of recorded contents is prohibited to protect copyright. However, the purpose of the present invention is to provide a recording medium with a copyright protection function that can surely collect a royalty fee.

Further, the object of the invention as defined in claims 27 to 29 is to prohibit illegal copying of software or the like in a DVD-R which can be recorded only once while maintaining compatibility with other DVD groups and cannot be rewritten. The purpose of the present invention is to provide a recording medium with a copyright protection function that can protect the copyright and reliably collect the royalty fee.

Further, the object of the invention described in claim 30 is to:
As a scramble type that can be used, it is to provide a recording medium with a copyright protection function that can handle as many encryption methods as possible.

[0029]

In order to achieve the above object, the invention according to claim 1 quantizes an audio signal, performs error correction by CIRC, and performs index search of a song by subcodes P and Q. In the CD specified by the Red Book standard, when a signal is recorded, it is recorded by performing a specific scrambling, and a copy prohibition code that uses a box graphic code to identify the type of scrambling in the vicinity of the lead-in. The mark is printed.

According to this structure, the scramble type used for the CD and whether or not copying of the contents is prohibited can be displayed by the copy prohibition code mark by the box figure code.

According to a second aspect of the present invention, at the time of reproducing a CD, the copy prohibition code mark is read to identify the scramble type to be used, and the digital signal decoded by descramble according to the identified scramble type and the above-mentioned digital signal. When the copy prohibition signal newly generated based on the copy prohibition code is combined and output, and converted into an analog audio signal and reproduced, the reproduction prohibition signal is ignored and reproduced.

According to this structure, when the CD is reproduced, the scramble type used is read and decoded from the copy prohibition code mark printed by the box figure code, and the copy prohibition signal is synthesized and output. You can

According to the third aspect of the present invention, at the time of copying the contents of the CD, any recording medium such as a copy destination CD, a disk or a digital tape, which has a copyright fee added to the price in advance, can be arbitrarily selected. A copy prohibition code mark indicating the scramble type is printed, it is judged whether or not the copy prohibition signal is included in the output signal at the time of playing the CD, and if the copy prohibition signal is included, the recording of the copy destination is performed. It is characterized in that it is confirmed whether or not the copy prohibition code / mark is printed on the medium, and the copy is permitted only when it is present.

According to this structure, when the contents of a CD for which illegal copying is prohibited are to be copied, it is determined whether or not the recording medium at the copy destination has paid the copyright usage fee. Since it is determined based on the presence or absence of permission, copying can be permitted if the copyright fee has been paid, and it can be prohibited in case of illegal copying.

The invention described in claim 4 is characterized in that at the time of signal recording by copying, scrambling is performed by using the scramble type printed on the copy destination recording medium for recording.

According to this configuration, when the recording medium created by the new copy is reproduced or the second generation copy is performed, the printed copy prohibition code mark and the scramble type of the content data do not differ from each other. , Can be matched exactly.

The fifth aspect of the present invention is characterized in that the copy inhibition signal is a signal having a specific number of bits using a subcode.

According to this structure, the reproduction of the copy medium can be performed without any trouble.

According to a sixth aspect of the present invention, 2352 bytes of data are set as one block as a minimum unit for writing / reading, and the bit error rate is the same level as that of a computer device. In a CD-ROM, a specific scrambling is performed at the time of writing the data and the data is written, and a transfer inhibition code mark using a box figure code for identifying the scramble type is printed at a position near the lead-in. .

According to this structure, the scramble type used in the CD-ROM and whether or not the transfer is prohibited can be displayed by the transfer prohibition code mark using the box figure code.

According to a seventh aspect of the invention, when the data is read from the CD-ROM, the transfer inhibition code mark is read to identify the scramble type to be used, and the scramble type according to the identified scramble type is used. It is characterized in that the decoded digital data and a transfer prohibition signal newly generated based on the transfer prohibition code are combined and output, and when the user data is taken out, the transfer prohibition signal is ignored and read.

According to this structure, when data is read from the CD-ROM, the scramble used by the transfer prohibition code mark by the box figure code which is printed is used.
The type can be read, the data can be decoded, and the transfer inhibition signal can be combined and output.

According to the eighth aspect of the present invention, when the contents of the CD-ROM are transferred, the copyright usage fee is already added to the price in the recording medium such as the transfer destination CD-ROM, disk or digital tape. A transfer prohibition code mark representing an arbitrary scramble type is printed on the recording medium, and it is determined whether the output signal includes a transfer prohibition signal. If the transfer prohibition signal is included, the transfer prohibition signal is transferred. It is characterized in that it is confirmed whether or not the transfer prohibition code / mark is printed on the recording medium, and the transfer is permitted only when it is present.

According to this structure, when the data of the CD-ROM in which the illegal transfer is prohibited is to be transferred, it is determined whether or not the recording medium of the transfer destination has paid the copyright usage fee. -Since it is determined based on the presence or absence of mark printing, it is possible to permit copying if the copyright usage fee has been paid, and prohibit copying if it is illegal.

The invention according to claim 9 is characterized in that, when the contents of the CD-ROM are transferred, scrambling is performed by using the scramble type printed on the transfer destination recording medium to write. There is.

According to this structure, the scramble type of the print prohibition code mark and the scramble type of the content data do not differ when reading or transferring from the recording medium newly created by transfer. Can be matched exactly.

According to a tenth aspect of the present invention, in the single-session type CD-R and the multi-session type Photo CD defined by the Orange Book standard as writable CDs, specific scrambling is performed at the time of data writing. Then, a transfer inhibition code mark using a box graphic code for identifying the scramble type is printed at a position near the lead-in.

According to this structure, the scramble type of the data used in the CD-R and whether or not the transfer is prohibited can be displayed by the transfer prohibition code mark using the box figure code. it can.

According to the eleventh aspect of the present invention, when the data is read from the CD-R, the scramble type used is identified by reading the transcription prohibition code mark, and the data is decoded by the identified scramble type. The transfer prohibition signal newly generated based on the transfer prohibition code is combined and output, and when the data is taken out, the transfer prohibition signal is ignored and read.

According to this structure, when the data is read from the CD-R, the scramble type used is read from the printed transfer inhibition code mark to decode the data, and the transfer inhibition signal is read. Can be combined and output.

According to the twelfth aspect of the present invention, when transferring the contents of the CD-R, the copyright fee has been added to the price in advance in the recording medium such as the transfer destination CD-R, disk or digital tape. An arbitrary scramble type transfer prohibition code mark is printed on the recording medium, and it is determined whether or not the output signal includes the transfer prohibition signal. It is characterized in that it is confirmed whether or not the transfer prohibition code / mark is printed on the recording medium, and the transfer is permitted only when it is present.

According to this structure, when the data is to be transferred from the CD-R which prohibits the illegal transfer, it is determined whether or not the transfer destination recording medium has paid the copyright usage fee. Judging by whether or not the mark is printed,
It is possible to allow the transfer of data when the copyright fee has been paid, and to prohibit the transfer in case of illegal transfer.

According to the thirteenth aspect of the present invention, when the contents of the CD-R are transferred, the scramble type printed on the recording medium of the transfer destination is used for scrambling and writing. There is.

According to this configuration, when reading from the newly created CD-R by transfer or when transferring the second generation,
It is possible to exactly match the printed prohibition code and the scramble type of the contents data so as not to be different.

According to a fourteenth aspect of the present invention, image data is written in the CD-I and CD-ROM / XA defined by the Green Book standard capable of recording moving images such as movie video movies by MPEG compression. At this time, specific scrambling is performed for writing, and a transfer inhibition code mark using a box graphic code for identifying the scramble type is printed at a position near the lead-in.

According to this structure, the CD-I or C is recorded by the transfer prohibition code mark using the box figure code.
It is possible to display the scramble type used in the D-ROM / XA and whether or not transfer is prohibited.

According to the fifteenth aspect of the present invention, when the image data is read from the CD-I or the CD-ROM / XA, the transfer inhibition code mark is read and used for scrambling.
The type is identified, the image data decoded by descrambling according to the identified scramble type and the transfer inhibition signal newly generated based on the transfer inhibition code are combined and output, and when the image data is taken out, the It is characterized in that the transfer inhibition signal is ignored and read.

According to this structure, the CD-I or the CD-R
When reading data from the OM / XA, the scramble type of the data used can be read from the printed transfer prohibition code mark to decode the data, and the transfer prohibition signal can be combined and output. .

The invention described in claim 16 is CD-I, C
When transferring image data from the D-ROM / XA, any scrambled data can be scrambled to the recording medium such as CD-R, disk or digital tape to which the copyright is charged in advance. If a transfer prohibition signal is included in the output image signal, it is judged whether or not the transfer prohibition signal is included in the output image signal. The feature is that it is confirmed whether or not the transfer prohibition code / mark is printed, and the transfer is permitted only when it is present.

According to this configuration, when data is transferred from the CD-I or CD-ROM / XA which prohibits illegal transfer, it is determined whether or not the recording medium of the transfer destination has paid the copyright usage fee. Judging from the presence / absence of the print prohibition code / mark, it is possible to permit the transfer when the copyright usage fee has been paid and prohibit the illegal transfer.

According to a seventeenth aspect of the invention, when the image data is transferred from the CD-I or CD-R0M / XA, scrambling is performed using the scramble type printed on the transfer destination recording medium. It is characterized by writing.

According to this structure, when the data is read from the CD-I or the CD-ROM / XA newly created by transfer or the second generation transfer is performed, the transfer prohibition code mark and the contents printed are printed. Scramble data
You can make sure they match so that the types are not different.

According to the eighteenth aspect of the present invention, in order to maintain compatibility, the discs of the same size as the CD are laminated in two layers, and NTSC is mainly used for a moving image of a movie by MPEG2 compression.
According to the method, in a DVD in which audio by AC-3 compression is recorded, a specific scrambling is performed when data is recorded, and a box for identifying the scramble type on the inner side, outer side, or outer side of the disc. A copy prohibition code mark using a figure code is printed.

According to this structure, the scramble type used in the DVD and whether or not copying is prohibited can be displayed by the copy prohibition code mark using the box graphic code.

In a nineteenth aspect of the present invention, when reproducing from a DVD, the copy prohibition code mark is read to identify the scramble type to be used, and the digital data is decrypted by descrambling according to the identified scramble type. It is characterized in that a copy prohibition signal newly generated based on the copy prohibition code is combined and outputted, and when reproduced on a monitor, the copy prohibition signal is ignored and reproduced.

According to this structure, when reproducing from the DVD, the scramble type being used is identified from the printed copy prohibition code mark, the data is decoded, and the copy prohibition signal is synthesized. In addition to being able to output, the movie can be played back on the monitor without any trouble.

According to the twentieth aspect of the present invention, when copying the contents of a DVD, an arbitrary scrambled / scrambled medium is added to the medium to which the copyright fee has been added in advance in the medium to be copied.
A copy prohibition code mark indicating the type is printed, it is determined whether the output signal includes a copy prohibition signal, and when the copy prohibition signal is included, the copy is performed on the copy destination medium. The feature is that it is checked whether the prohibition code / mark is printed, and copying is permitted only when it is printed.

According to this configuration, when the contents are to be copied from the DVD which is prohibited from illegal copying, it is prohibited to copy whether or not the copy destination medium (raw disk etc.) has paid the copyright usage fee. Judging from the presence or absence of the print of the code mark, it is possible to permit the copying of the contents when the copyright fee has been paid and prohibit the illegal copying.

According to a twenty-first aspect of the present invention, a disc having the same size is used and a two-layer structure is maintained while maintaining compatibility with a CD-ROM, thereby further increasing the capacity by a factor of ten or more, and Used as storage device for DVD
-In the ROM, when data is written, specific scrambling is performed for writing, and a copy prohibition code mark using a box graphic code for identifying the type of the scramble is provided on the inner circumference side, outer circumference side or outer circumference side of the disc. Printing.

According to this structure, the DVD-RO is protected by the copy prohibition code mark using the box figure code.
It is possible to display the scramble type of the data used by M and whether or not copying is prohibited.

The invention according to claim 22 is a DVD-RO.
When data is read from M, the copy prohibition code mark is read to identify the scramble type to be used, the digital data decoded by descrambling with the identified scramble type and the new copy prohibition code are added. It is characterized in that the copy prohibition signals generated in step 1 are combined and output, and when the data is read, the copy prohibition signal is ignored and read.

According to this structure, when the data is read from the DVD-ROM, the scramble type used is discriminated from the printed copy prohibition code mark to decode the data, and the copy prohibition signal is outputted. Can be combined and output, and data can be read without any trouble.

The invention described in Item 23 is the DVD-RO.
When copying the contents of M, a copy prohibition code mark representing an arbitrary scramble type is printed on the medium to which the copyright usage fee has been added in advance in the copy destination medium, and the output signal is printed. Judge whether the copy prohibition signal is included or not.If the copy prohibition signal is included, check whether the copy prohibition code or mark is printed on the copy destination medium. It is characterized by permitting copying.

According to this configuration, when the contents of the software are copied from the DVD-ROM which prohibits illegal copying, it is prohibited to copy whether or not the copy destination medium has paid the copyright usage fee. Judging by whether or not the code mark is printed, it is possible to permit copying if the copyright fee has been paid and prohibit copying if the copyright is illegal.

According to a twenty-fourth aspect of the invention, the phase change recording /
In a DVD-RAM that is compatible with other DVDs as a rewritable DVD depending on the reproduction method, a specific scrambling is used for writing data, and the scrambling type is applied to the inner or outer peripheral side or outer peripheral side of the disc. A copy prohibition code mark is printed using the box graphic code for identification.

According to this structure, the DVD-RA is protected by the copy prohibition code mark using the box figure code.
It is possible to display the scramble type of the data used by M and whether or not copying is prohibited.

The invention described in Item 25 is the DVD-RA.
When reading data from M, the copy prohibition code
Read the mark to identify the scramble type used,
The digital data decoded by descrambling according to the identified scramble type and the copy prohibition signal newly generated based on the copy prohibition code are combined and output, and when the data is taken out, the copy prohibition signal is ignored. The feature is that it is read out.

According to this structure, when the data is read from the DVD-RAM, the scramble type being used is discriminated from the printed copy prohibition code mark to decode the data, and the copy prohibition signal is outputted. Can be combined and output, and data can be read without any trouble.

The invention described in Item 26 is the DVD-RA.
When copying the contents of M, a copy prohibition code mark representing an arbitrary scramble type is printed on the medium to which the copyright usage fee has been added in advance in the copy destination medium, and the output signal is printed. If the copy prohibition signal is included, check if the copy prohibition signal is included.If the copy prohibition signal is included, check whether the copy prohibition code or mark is printed on the medium, and only if it is printed. It is characterized by permitting copying.

According to this structure, when copying the contents of the DVD-RAM in which illegal copying is prohibited, it is determined whether or not the copy destination medium has paid the copyright usage fee, the copy prohibition code / mark print. Judging from the presence or absence of, if the copyright usage fee has been paid, copy the contents,
In case of illegal copying, it can be prohibited.

The invention according to claim 27 is the CD and D
In DVD-R, which can be recorded only once while maintaining compatibility with VD-ROM and DVD-RAM and cannot be rewritten, a specific scrambling is used for writing data, and the inner or outer circumference of the disc is used. A copy prohibition code mark using a box graphic code for identifying the scramble type is printed on the side or the outer peripheral side surface.

According to this structure, the scramble type of the data used in the DVD-R and whether or not copying is prohibited can be displayed by the copy prohibition code mark using the box figure code. it can.

According to the twenty-eighth aspect of the present invention, when the data is read from the DVD-R, the scramble type to be used is identified by reading the copy prohibition code mark, and the scramble type according to the identified scramble type is used. It is characterized in that the decrypted digital data and the copy prohibition signal newly generated based on the copy prohibition code are combined and output, and when the data is read, the copy prohibition signal is ignored and read.

According to this structure, when reading data from the DVD-R, the scramble type being used is discriminated from the printed copy prohibition code mark to decode the data, and the copy prohibition signal is outputted. Can be combined and output.

According to the twenty-ninth aspect of the present invention, when copying the contents of the DVD-R, the medium of which the copyright fee has been added to the price in the copy destination medium represents an arbitrary scramble type. A copy prohibition code / mark is printed, and it is judged whether or not the output signal includes a copy prohibition signal. If the copy prohibition signal is included, the copy prohibition code / mark is printed on the copy destination medium. Is checked to see if it is printed, and copying is allowed only when it is printed.

According to this configuration, when the contents of the DVD-R for which illegal copying is prohibited are to be copied, it is determined whether or not the copy destination medium has paid the copyright usage fee. Judging by the presence or absence of printing, if the copyright fee has been paid, copy the contents,
In case of illegal copying, it can be prohibited.

In the thirtieth aspect of the present invention, the scramble type is a password system, a substitution type encryption system,
It is characterized by including scrambling using a secret key encryption method such as DES and a public key encryption method such as RSA.

According to this structure, almost all encryption methods can be covered and used as the scramble type for scrambling the data.

[0089]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention.
It is a block diagram of a recording medium with a copyright protection function according to the embodiment of. FIG. 2 shows writing of the recording medium shown in FIG.
It is a block diagram of a reading device. FIG. 3 is a scramble type storage hierarchy diagram of the library shown in FIG. FIG. 4 is an explanatory diagram of the box graphic code shown in FIG.

In FIG. 1, 1 is a CD, a DVD, a CD-
A recording medium such as a ROM, a CD-R, a CD-ROM / XA, etc., and a top view of the recording medium 1 is shown in FIG.
A side view is shown in FIG. 2 is a copy prohibition code mark (for CD) that indicates the scramble type used to scramble the data by using a box figure code that concentrically forms four quadrilaterals each forming one segment to display one block , Or a transfer prohibition code mark (for CD-ROM, etc.).

3 is a hole for setting a CD, 4, 5
Are lead-in and lead-out indicating the front and rear (CD) positions of the recording position of the recording data. As shown in FIG. 1, the prohibition code mark 2 is printed on the upper surface of the CD near the inside of the lead-in side (inner circumference side), the outside of the lead-out side (outer circumference side), or the side surface of the outer circumference. Also, a sticker may be attached. In any case, it is sufficient to select a position that is easy to detect and does not interfere with data processing.
Also, the copy destination recording medium is a digital tape DA
In the case of T or DCC, the print position of the prohibition code mark 2 is selected at a position on the surface of a tape case or the like that is easy to detect for printing.

In FIG. 2, reference numeral 6 is a writing device for recording or writing on a CD, a CD-ROM or the like, which reads the prohibition code mark 2 printed on the upper surface of the recording medium 1 through the reading head 8. , From the scramble type reading unit 9 to the writing control unit 10. The write control unit 10 checks the input prohibition code mark 2 with the library in the scramble unit 13 to confirm the scramble type. The digital input data is scrambled by the scramble unit 13 using the confirmed scramble type, and the writing unit 12 performs processing such as CIRC and EFM to write the digital data via the writing head 11 by laser light. .

When reading the content written in the recording medium 1 by the reading / reproducing device 7, the read control unit 15 causes the decoding unit 1 to read the prohibition code / mark read from the reading head 8.
8 confirms the scramble type used for scrambling the recording medium 1 by collating with the library, and reads the data through the read head 16 and performs read processing such as EFM demodulation and CIRC processing at the read unit 17 to confirm. Decoding is performed by the decoding unit 18 using the scramble type described above. A copy or transfer prohibition signal indicating the existence of a prohibition code / mark is generated by the flag which is set by selecting an empty space from R to W of the subcodes P to W and combined with the digital data decoded by the combining unit 19. Form digital output. In the case of a CD, if D / A conversion is further performed by the D / A conversion unit 20, analog voice can be reproduced by a speaker.

Here, as for various scramble types to be stored in the library, as shown in an example in FIG. 3, the encryption method used for scrambling is, for example, the DES type of the replacement type and the secret key type, and the public key type. The RSA type is divided into the word substitution method using one key and the compound word substitution method that is complicated by combining a plurality of keys (two to five examples are shown in the figure). Further, as each item is subdivided into branches, a detailed structure is given. The DES type is an encryption method that has a complex algorithm that encrypts a 64-bit data block with a 56-bit key.
B, cipher block tuning CBC, cipher feedback CFB, output feedback OFB, and further subdivided into branches for each item. In the RSA type, the key is open to the public, so anyone can do the encryption of the plaintext, but the decryption key is sent to Euler's phi function, which is almost impossible to calculate without knowing the decryption key. ing. In this way, the scramble type library covers most of the encryption methods currently used and is stored in the memory in a hierarchical structure, so it is easy to search, and you can freely add or delete to the library. You can do it.

Next, regarding the correspondence between the scramble type and the box figure code, the box figure code used in the prohibition code of the present invention has four sides as shown in the basic figure in FIG. 4 (a). This is a figure code in which four large and small quadrilaterals (called boxes) having straight lines as four segments are concentrically overlapped to form one basic code, and the outermost box is sides a, b, c, d, and 2. Th is a1, b1, c1, d
1st, 3rd a2, b2, c2, d2, 4th is a3, b
In the configuration of each of the segments 3, c3 and d3, if the segments are associated with bits, it is possible to display 4 bits in one quadrangle (box) and 16 bits in one basic code in which four are overlapped.

FIG. 4B shows only the outermost box. If the straight line of the segment has a cut A, it is "0", and if it is not, the segment a =
"1" segment b = "1", c = "1", d =
"0", next to 1 box binary code "1110"
Is a two-dimensional code that can display numerical values, characters, symbols, etc. Of the segment,
The break A may be on either the left or right or the center of the straight line.

This box graphic code is made to correspond to the scramble type hierarchy of FIG. 3, and as shown in FIG. 4 (c), the outermost box is the trunk display and the segment d cutting is the replacement type and the segment b cutting is the If the DES type and the segment a are cut, the RSA type is displayed, and if the second and subsequent boxes are made to correspond to the branches that are subdivided from the trunk, in the code diagram example at the top, Since the outer box is a d-segment cut, it points to the permutation type, the second box next corresponds to the second branch, and segments a and c
Since is a disconnection, for example, the compound replacement 5 is displayed.

Since it is possible to know only the compound type having the number of keys of 5 only by the compound word replacement 5, the third box corresponds to the next branch (the following branches are not shown in FIG. 3), Since segment b is cut off in the third box, for example, “3 bytes + 2 block replacement” can be obtained as a key. Specifically, three keys "3", "1" such as the first 1st byte is delayed by 3 bytes, the 2nd byte is delayed by 1 byte, the 3rd byte is delayed by 2 bytes, etc. , "2" in byte units and, for example, 15 bytes as one block, 2 blocks = 30 bytes, and two keys "4 blocks" and "5 blocks" are replaced by 5 keys in total. It is like replacing with the composite key of.

Next, the branch corresponding to the next 4th box is searched, and if there is a branch that delays by 1 block for every 5 blocks, this is taken in, and the next branch is searched, and if there is no branch, it ends. As a result, a box figure code as shown at the top of FIG. 4C is output as a copy prohibition code mark indicating the scramble type in this case.

The other DES type and RSA type have the same structure, and each segment of the box figure code is made to correspond to the scramble type hierarchical branch. If the number of subdivisions is large and one box figure code is not enough to handle the problem, increase the number of box figure codes to handle it, and use the box figure code to symbolize the contents of the copy prohibition code and display it compactly. can do.

The search of the hierarchical diagram shown in FIG. 3 is performed by creating an index with each pointer, but the index part is associated with a box figure code corresponding to each branch part and a branch comparison table, and is prohibited. Prompt response to code input / output.

Next, the operation will be described. As described above, as a measure to prevent illegal copying of recording media such as CDs, a copy prohibition flag is inserted on the software side represented by SCMS, and copying is prohibited when the prohibition flag is detected on the device side. 2) of the compensation claim system, in which both the hardware and the software are added to the wholesale price in addition to the amount commensurate with the copyright compensation to collect in advance and the user is guaranteed a free copy. There are two ways of thinking, the former limits the freedom of the user, and the latter has the problem of allocating the amount to be collected, but it has advantages and disadvantages. The system of guaranteeing free copy is adopted by the compensation claim system.

The copyright protection process of the present invention will be described below with reference to FIG. 2 using an example of a CD.

A copy prohibition code that displays two items, the copy prohibition display and the scramble type being used, by the box graphic code printed on the upper surface of the CD1.
The reading unit 14 reads the mark 2 via the reading head 8 and inputs it to the reading control unit 15.

The read control unit 15 collates the read copy prohibition code 2 with the library index in the decoding unit 18, searches the hierarchical structure shown in FIG.
Check the type (eg compound word substitution type 5). Read-out unit 1
After recording digital data is read from the recording medium 7 via the read head 16 and subjected to EFM demodulation and CIRC processing, the read control unit 15 causes the decoding unit 18 to decode the data by descramble according to the previously confirmed scramble type.

Next, the subcodes R to W are arranged so as to correspond to the copy prohibition code (scramble type) read by the synthesizing unit 19, that is, to correspond to the bit display of the box figure code representing the copy prohibition code in this case. A flag is set in the vacant land and the digital output is obtained by taking the form of digital data + prohibition signal = digital output as a copy inhibition signal. With this output, the first generation copy or the like is performed.
When reproducing a music piece, the music piece is reproduced by a speaker via the D / A converter 20. In this case, only the audio data is taken out and the copy prohibition signal is ignored.

When the first generation copy is performed using the digital output including the copy prohibition signal from the synthesizer 19, does the write controller 10 include the copy prohibition signal in the digital output? If it is included, is the copy inhibition code mark 2 printed on the copy destination recording medium such as a new CD disc or digital tape? That is, the writing control unit 10 confirms via the read head 8 and the read unit 9 whether or not the copyright usage fee has been paid for the new medium.

When the copyright fee has been paid, the copy prohibition code mark 2 is used to collate with the library index in the scramble unit 13, and the hierarchical structure is searched to confirm the scramble type. Allow writing and recording, allow digital input to scramble section 13,
Scrambling is performed according to the scramble type confirmed as the print code mark, and the writing unit 12 performs the CIRC and EFM processing, including the copy inhibition signal, and then the writing is performed by the writing head 11 to finish.

As for scrambling at the time of copying, the scramble type represented by the code mark of the copy destination is selected instead of the scramble type of the previous copy target disk. In this way, after the first generation copy, the media will replace the unpaid media for the copyright usage fee, so the printing of the copy prohibition code mark indicating that the copyright usage fee has been paid at the time of the new media is printed at the time of the first reading. Writing with an organic dye that dissolves when irradiated with laser light
Only use generation copy. Again,
Box graphic code marks are advantageous because they are less legible than letters after being melted and erased. The type of box graphic code / mark to be used as a mark that has been paid in addition to the copyright usage fee is not particularly specified and may be arbitrary.

In this way, since the copy prohibition code mark 2 is melted and erased in the medium used once for copying, in the case of a digital tape or the like, the writing control unit 10 does not pay the usage fee even if an attempt is made to copy the second generation or later. Since it is judged that the copy is not permitted, unauthorized copying can be prevented. Also, if you want to reproduce this 1st generation copy, the copy prohibition code mark disappears, but the copy prohibition signal of the subcode is alive, so you can read and confirm the scramble type from this signal, and Since it can be scrambled and decoded, there is no problem in playing back and listening to the music inside.

The above is the copy prohibition method using the SCMS system. However, when the additional charge can be collected and the compensation claim right system is adopted, the usual method without using the melt dye for printing the copy prohibition code mark 2 is used. Print to ensure free copying for many generations, not just one.

As described above, regarding the copyright protection processing, C
Although the description has been made by using D as an example, other recording media, CD-RO
The same effect can be obtained by the same processing for M, digital tape, CD-ROM / XA, CD-R and the like.

Next, a second embodiment of the present invention will be described. FIG. 5 shows a DV according to the second embodiment of the present invention.
It is a block diagram of D.

In FIG. 5, the DVD 1A has two CDs.
It is a Digital Video Disc for video recording having a structure in which the capacity is expanded by laminating the layered structure, and the image signal is compressed by MPEG2 and the sound is NT.
In the case of SC (MPEG2 audio compression is adopted in PAL), by using 5 speakers to compress and record by AC-3 system which performs theater-like surround audio reproduction, the recording capacity is about 13 times that of CD. Although expanded, the external shape is the same size as the CD shown in FIG. 1 except for the thickness in order to maintain compatibility. 30 is a playback device for DVD 1A (including a TV monitor (not shown)), 31 is a DVD
It is a recording device of 1B.

On the reproducing device 30 side, 2 is a copy prohibition code mark using the same box graphic code as in the case of CD 1, and it is printed by normal printing instead of the fused dye or the like, and the printing position is as shown in the figure. Two items of a copy prohibition code mark and a data scramble type, that is, a key signal are displayed on the inner circumference side, outer circumference side, or outer circumference side of the disk. 8 is a read head for reading the copy prohibition code mark 2, 32 is a reproducing head for reading the data of the DVD, and in the case of the DVD, the wavelength of the laser beam is made shorter than that of the CD, and the track pitch / laser spot size is set. Is squeezed by 30% to increase the density, but CD
Regarding the compatibility between DVD and CD, a two-lens system pickup for switching the lens and reading, or a lens for CD is constructed in a part of the lens for DVD, and DVD and CD are read by one lens with dual focus. It is maintained by using a read head of the type.

Reference numeral 33 is a signal processing unit, which has the same basic configuration as the reading / reproducing apparatus 7 shown in FIG. 2, but in the case of a DVD, inverse DCT and predictive memory processing from the reading control unit 15 via the decoding unit 18. MPEG2 decoding, AC-3, etc.
Decoding processing is added, and as an output signal, a digital video / audio signal is combined with a copy prohibition signal (or a copyright signal) and output, and not only audio but also both video and audio signals are monitored on the playback side. Will be output to.

On the other hand, on the recording device 31 side, a recording head 34 is a phase change recording / reproducing system rather than the MO (magneto-optical recording) technique used for a conventional optical disk, so a magnetic effect is not necessary and a simple laser is used. Writing is possible only by light irradiation. Reference numeral 35 denotes a signal processing unit, which has the same basic configuration as the writing device 6 shown in FIG. 2, but in the case of a DVD, the writing control unit 10 causes the writing unit 12 and the scrambling unit 13 to
DCT, MPEG2 encoding by predictive memory processing, and AC-3 encoding processing are added to compress and encrypt data for recording.

The above is the general DVD format, but other DVD groups include a single layer of 4.7 GB,
With a two-layer structure, the capacity is expanded to 8.5 Gbytes and is used as a DVD-ROM for computer storage devices, and it can be rewritten by the phase change recording / reproducing method, such as movie DVD and DVD
DVD-RAM, which is compatible with ROM as well, can be recorded only once by using fused dye and cannot be rewritten.
Possible applications include program demonstrations, home video, video movies, and other self-made movie productions D
There is VD-R.

Next, the operation will be described. The DVD group according to the second embodiment is premised on a reward claim system in which a sufficient copyright fee is added and collected in advance.

When the reproducing apparatus 30 reads the copy source DVD 1A, the composite signal obtained by combining the video / audio digital data with the copy inhibiting signal is input to the recording apparatus 31, and the recording apparatus 31 confirms the copy inhibiting signal. The reading head 8 checks whether or not the copy inhibition code mark 2 is printed on the copy destination DVD 1B. If the copy prohibition code mark 2 is printed, the copyright fee has been prepaid, so copying is freely permitted for any number of generations.

In the signal processing circuit 35, the input copy composite signal is encoded by MPEG2 for video and AC-3 for audio, and scrambled by the scrambling type of the key signal read by the read head 8 to obtain a phase change type signal. Recording on the DVD 1B by the recording head 34.

Here, as shown in the direction of the arrow at the bottom of FIG. 5, if the copy destination DVD 1C has not paid the copyright fee and the copy prohibition code mark 2 is not printed, the key is Copying is not allowed because the signal cannot be detected. Further, when the combined signal from the reproducing device 30 does not include the copy prohibition signal, it is possible to copy by the free path. Other processing is based on the operation of each part of the previous embodiment described in FIG.

An example of a movie DVD has been described above with respect to the copyright protection processing of a DVD.
The same effect can be obtained in the case of ROM, DVD-RAM, and DVD-R.

[0124]

As described above, according to the present invention,
For digital recording media such as CDs and DVDs, it has two purposes of displaying, that is, the scramble type that scrambles the data, and the warning that the media is forbidden to copy or transfer without permission. The copy prohibition code mark or the transfer prohibition code mark is symbolized using the box figure code and printed on the board to be used as a judgment index in each process of writing and recording, reading and reproducing, and copying. Since it is configured to do so, it is possible to prepare various scramble types and selectively use simple ones and difficult ones according to the security rank, so it is difficult for media that wants to prohibit copying by all means. It became possible to select the slamble type and combine them to make decoding difficult.

Since the copy prohibition code mark or the transfer prohibition code mark is used both for the purpose of reading the scramble type and for the certificate of payment of the copyright fee, illegal copy or illegal transfer is prohibited. By prohibiting and protecting copyrights and collecting copyright usage fees, it has become possible to guarantee free copying without imposing operational restrictions on users.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a recording medium with a copyright protection function according to a first embodiment of the present invention.

FIG. 2 is a block diagram of a writing / reading device of the recording medium shown in FIG.

3 is a scramble type storage hierarchy diagram of the library shown in FIG. 1. FIG.

4 is an explanatory diagram of a box graphic code shown in FIG. 1. FIG.

FIG. 5 is a configuration diagram of a DVD according to a second embodiment of the present invention.

FIG. 6 is a configuration diagram of a main part of a signal processing system of a conventional CD.

FIG. 7 is an explanatory diagram of the scramble processing shown in FIG.

FIG. 8 is a diagram showing a physical format of a conventional CD.

FIG. 9 is a personal CD-RO using a conventional CD-R.
It is a figure which shows the production procedure of M.

[Explanation of symbols]

 1 recording media (CD) 1A, 1B, 1C DVD 2 copy, transfer prohibition code / mark 3 center hole 4 lead-in 5 lead-out 6 writing / recording device 7 reading / reproducing device 8 reading head 9,14 reading unit 10 writing Incorporation control unit 11 Writing head 12 Writing unit 13 Scramble unit 15 Reading control unit 16 Reading head 17 Reading unit 18 Decoding unit 19 Compositing unit 20 D / A conversion unit 30 Playback device 31 Recording device 32 Playback head 33, 35 Signal processing Part 34 Recording head

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G11B 20/18 572 G11B 20/18 572C 572F

Claims (30)

[Claims] 1. A CD specified by the Red Book standard for quantizing an audio signal, performing error correction by CIRC, and indexing tunes by subcodes P and Q, a specific scrambling when recording a signal. A recording medium with a copyright protection function, characterized by being recorded by ringing and printing a copy prohibition code mark using a box figure code for identifying the scramble type at a position near the lead-in. 2. The method according to claim 1, wherein when the CD is reproduced,
The copy prohibition code mark is read to identify the scramble type used, and a digital signal decoded by descrambling according to the identified scramble type and a copy prohibition signal newly generated based on the copy prohibition code are combined. A recording medium with an illegal copy prohibition function, which is characterized in that when it is outputted, converted into an analog audio signal and reproduced, the copy prohibition signal is ignored and reproduced. 3. The method according to claim 1 or 2, when copying the contents of a CD, an arbitrary recording medium such as a CD, a disk or a digital tape, which is a copy destination, has a copyright usage fee added to the price in advance. Print and place a copy prohibition code mark that represents the scramble type,
It is judged whether or not the copy prohibition signal is included in the output signal at the time of playing the CD, and if the copy prohibition signal is included, it is determined whether or not the copy prohibition code / mark is printed on the recording medium of the copy destination. A recording medium with a copyright protection function, which permits copying only if confirmed. 4. The recording medium with a copyright protection function according to claim 3, wherein at the time of recording a signal by copying, the scramble type printed on the copy destination recording medium is used for scrambling and recording. . 5. The copy prohibiting signal is a signal having a specific number of bits using a subcode.
Alternatively, the recording medium with the copyright protection function described in 3. 6. A CD-ROM defined by the Yellow Book standard having a bit error rate of the same level as that of computer equipment, with one block consisting of 2352 bytes of data as a minimum unit for writing and reading. When writing, write with specific scrambling, and print a prohibition code mark using a box figure code for identifying the scramble type at a position near the lead-in with a copyright protection function. Recording media. 7. The data transfer medium according to claim 6, wherein when reading data from a CD-ROM, the transfer inhibition code mark is read to identify the scramble type to be used, and the data is decoded by descrambling according to the identified scramble type. Copyright protection characterized in that digital data and a transfer prohibition signal newly generated based on the transfer prohibition code are combined and output, and when the user data is taken out, the transfer prohibition signal is ignored and read. Recording media with functions. 8. The CD-ROM according to claim 6 or 7.
When transferring the contents of the above, in the recording medium such as CD-ROM, disk or digital tape of the transfer destination, the recording prohibition code indicating any scramble type is added to the recording medium for which the copyright fee has been added to the price in advance. The mark is printed and placed, it is judged whether the output signal includes a transfer prohibition signal, and if the transfer prohibition signal is included, the transfer prohibition code mark is printed on the recording medium of the transfer destination. A recording medium with a copyright protection function, which is characterized by confirming whether or not it is recorded, and permitting transcription only when it is present. 9. The copyright protection function according to claim 8, wherein when the content is transferred, the scramble type printed on the transfer destination recording medium is used to perform scrambling and writing. Recording media. 10. A single session type C defined by the Orange Book standard as a writable CD.
In the D-R and multi-session type Photo CD, a specific scrambling is performed at the time of writing data to write the data, and a transfer prohibition code mark using a box figure code for identifying the scrambling type at a position near the lead-in. A recording medium with a copyright protection function, which is characterized by being printed. 11. The data according to claim 10, wherein when the data is read, the transfer inhibition code mark is read to identify a scramble type to be used, and the data is decoded by descrambling according to the identified scramble type,
A recording medium with a copyright protection function, which combines and outputs a transfer prohibition signal newly generated based on the transfer prohibition code, and ignores the transfer prohibition signal when reading data. 12. The recording medium according to claim 10 or 11, when the contents are transferred, to a recording medium such as a CD-R, a disc or a digital tape which is a transfer destination, in which a copyright fee has been added to the price in advance. Prints a transfer prohibition code mark of an arbitrary scramble type, determines whether the output signal includes a transfer prohibition signal, and if the transfer prohibition signal is included, it is recorded on the recording medium of the transfer destination. A recording medium with a copyright protection function, which confirms whether or not the transfer prohibition code / mark is printed, and permits transfer only when it is present. 13. The recording with a copyright protection function according to claim 12, wherein when the contents are transferred, scrambling is performed by using a scramble type printed on the recording medium of the transfer destination. media. 14. In a CD-I and a CD-ROM / XA defined by the Green Book standard capable of recording a moving picture such as a movie video movie by MPEG compression, a specific scrambling is applied when writing image data. A recording medium with a copyright protection function, characterized in that a transfer prohibition code mark using a box figure code for identifying the scramble type is printed at a position near a lead-in after writing and writing. 15. The image data decoded according to claim 14, wherein when the image data is read, the transfer inhibition code mark is read to identify a scramble type to be used, and the image data is descrambled by the identified scramble type. A recording medium with a copyright protection function, which is characterized in that a newly generated transfer prohibition signal based on the transfer prohibition code is combined and output, and when the image data is taken out, the transfer prohibition signal is ignored and read. . 16. The image recording medium according to claim 14 or 15, wherein when the image data is transferred, a recording medium such as a CD-R, a disk or a digital tape, which is a transfer destination, has a copyright fee added to the price in advance. Prints and puts a scramble type transfer prohibition code mark
It is determined whether the output image signal includes a transfer prohibition signal, and if the transfer prohibition signal is included, it is confirmed whether the transfer prohibition code / mark is printed on the recording medium of the transfer destination. However, a recording medium with a copyright protection function, which allows copying only when it is present. 17. The copyright protection function according to claim 16, wherein when the image data is transferred, the scramble type printed on the transfer destination recording medium is used to perform scrambling and writing. Recording media. 18. A DVD in which a disc of the same size as a CD is laminated in two layers to maintain compatibility and a movie image mainly by MPEG2 compression is recorded with audio by AC-3 compression by NTSC system. When a disc is recorded, it is recorded by performing a specific scrambling, and a copy prohibition code / mark is printed on the disc using a box figure code for identifying the scramble type. media. 19. The digital data according to claim 18, wherein when the DVD is reproduced, the copy prohibition code mark is read to identify the scramble type used, and the digital data is decrypted by the descramble according to the identified scramble type. A recording medium with a copyright protection function, which is characterized in that a copy prohibition signal indicating illegal copy prohibition is combined and outputted, and when reproduced on a monitor, the copy prohibition signal is ignored and reproduced. 20. The DVD according to claim 18 or 19.
When copying the contents of the above, the copy prohibition signal mark indicating the arbitrary scramble type is printed and placed on the medium to which the copyright fee has been added in advance in the copy destination medium, and the copy prohibition signal is output to the output signal. If the copy prohibition signal is included, check to see if the copy prohibition code / mark is printed on the copy destination media, and copy only if it is printed. A recording medium with a copyright protection function characterized by permitting. 21. A CD-recording medium using discs of the same size.
By using a two-layer structure while maintaining compatibility with a ROM, the capacity can be further increased by a factor of 10 or more, and in a DVD-ROM used as a storage device for a computer, a specific scramble at the time of writing data. A recording medium with a copyright protection function, characterized in that a ring-prohibited writing is performed and a copy prohibition code mark using a box figure code for identifying the scramble type is printed on the disc. 22. The DVD-ROM according to claim 21,
When reading more data, read the copy prohibition code mark to identify the scramble type used,
A feature that digital data decoded by descrambling according to the identified scramble type and a copy prohibition signal that means illegal copy prohibition are combined and output, and when the data is read, the copy prohibition signal is ignored and read. Recording media with copyright protection function. 23. The DVD according to claim 21 or 22.
-When copying the contents of the ROM, a copy prohibition code that represents an arbitrary scramble type on the medium of the copy destination that has already been charged with the copyright fee in the price.
A mark is printed and placed, it is judged whether or not the output signal includes a copy prohibition signal, and if the copy prohibition signal is included, the copy prohibition code / mark is printed on the copy destination medium. A recording medium with a copyright protection function, which checks whether or not it is allowed to copy only when it is printed. 24. In a DVD-RAM which is compatible with a CD and another DVD as a rewritable DVD by a phase change recording / reproducing system, a specific scrambling is used for writing data, and the scrambling of the scrambling is performed on the disc. A recording medium with a copyright protection function, which is printed with a copy prohibition code mark using a box graphic code for identifying the type. 25. The DVD-RAM according to claim 24.
When reading data from the
Read the mark to identify the scramble type used,
A feature that digital data decoded by descrambling according to the identified scramble type and a copy prohibition signal that means illegal copy prohibition are combined and output, and when the data is taken out, the copy prohibition signal is ignored and read out. Recording media with copyright protection function. 26. The DVD according to claim 24 or 25.
-When copying the contents of RAM, a copy prohibition code that represents an arbitrary scramble type on the medium of the copy destination that has already been charged with the copyright fee in the price.
A mark is printed and placed, it is determined whether the output signal includes a copy prohibition signal, and if the copy prohibition signal is included, the copy prohibition code,
A recording medium with a copyright protection function, which checks whether the mark is printed and permits copying only when it is printed. 27. CD and DVD-ROM, DVD-
In DVD-R that can be recorded only once while maintaining compatibility with RAM and cannot be rewritten, a specific scrambling is used for writing data, and a box graphic code for identifying the scrambling type is used on the disc. A recording medium with a copyright protection function, which is characterized by printing the used copy prohibition code and mark. 28. The digital signal according to claim 27, wherein when reading data from a DVD-R, the copy inhibition code mark is read to identify the scramble type to be used, and the scramble type is used for descrambling. A recording medium with a copyright protection function, characterized in that data and a copy prohibition signal indicating illegal copy prohibition are combined and output, and when reading data, the copy prohibition signal is ignored and read. 29. The DVD according to claim 27 or 28.
-When copying the contents of R, a copy prohibition code mark representing an arbitrary scramble type is printed and placed on the medium to which the copyright fee has been added in advance in the copy destination medium, and the output is made. Judge whether the signal includes a copy prohibition signal, and if the copy prohibition signal is included, check whether the copy prohibition code or mark is printed on the copy destination medium, A recording medium with a copyright protection function, which permits copying only when printed. 30. The scramble type includes a scramble using a password method, a replacement encryption method, a secret key encryption method such as DES, and a public key encryption method such as RSA. A recording medium with a copyright protection function according to items 1 to 29.