JP2002319228A - Device and method for data output, and device and method for data recording - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device that a user satisfies by limiting the number of copies of only the uncharged contents as to a system, which imposes limitations on the number of copies. SOLUTION: A CPU 17 controls whether information regarding ISRC that an discrimination information read part 15 reads out of an RF signal is stored in a RAM 18 for number limitation, according to the output destination of the contents output (digital) from a contents output part 11 and the discrimination result of a charging/non-charging discrimination part 16. Namely, the CPU 17 turns on a changeover switch 19 and stores the information regarding the ISRC in the RAM 18 when the destination of the contents output (digital) of the contents output part 11 is a recorder, when the contents output is led out via an output terminal 25 and the discrimination result from the charging/non- charging discrimination part 16 shows a non-charging state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a data output apparatus and a data output method for performing demodulation processing and decoding processing on a signal supplied from a medium and outputting content data. Further, the present invention relates to a data recording device and a data recording method for newly performing a data recording process on content read from a recording medium and recording the content on another recording medium.

[0002]

2. Description of the Related Art In recent years, as digital recording media such as optical disks have become larger in capacity and spread, it has become important to prevent illegal copying in order to protect the copyright of recorded signals. That is, in the case of digital audio data or digital video data, a copy without deterioration can be easily generated by copying or dubbing, and in the case of computer data, the same data as the original data can be easily copied. However, the fact is that illegal copying has already caused adverse effects such as copyright infringement.

[0003] In view of the above, for the purpose of preventing illegal copying in so-called digital dubbing, in which a digital signal obtained by reproducing a signal recorded on a digital recording medium is recorded again on the digital recording medium, the original digital recording medium is used. In some cases, a predetermined ID bit is recorded to prevent illegal copying.

For example, a so-called R-DAT (Rotary hea)
The digital audio signal recording / reproducing apparatus referred to as “d Digital Tape Recoder” employs a method for preventing the illegal copying. The digital audio signal is recorded in a main data area of a digital audio signal recorded on a digital audio tape as a digital recording medium. Banning and gradual generation copy (ie generation restriction)
A prohibition code (so-called SCMS: prohibition code of the serial copy management system standard) is recorded in advance, and when the digital audio signal recording device detects this prohibition code, the digital audio signal is recorded on a new digital audio tape. A system that prohibits copy recording of an audio signal is employed.

The dubbing system for reproducing a digital signal obtained by reproducing a signal recorded on a digital recording medium and recording the digital signal again on the digital recording medium uses a copy number restriction for limiting the number of copies of contents on the digital recording medium. Some copyrights are protected.

[0006]

By the way, charging contents have never hitherto entered a number limiting system in which the copyright is protected by using the copy number limitation. When charged contents enter the conventional system, there is a disadvantage that copying is restricted despite charging at an output destination or a recording machine.

The present invention has been made in view of the above-mentioned circumstances, and is a system having a limited number of copies, a data output device which limits only the number of non-charging contents to the number of copies, and which is satisfactory to a user. It is an object of the present invention to provide a data output method, a data recording device, and a data recording method.

It is another object of the present invention to provide a data output device, a data output method, a data recording device, and a data recording method that can use billing content and non-billing content in the same copy number restriction system.

[0009]

In order to solve the above-mentioned problems, a data output device according to the present invention performs demodulation processing and decoding processing on a signal supplied from a medium and outputs charged or non-charged content. Content output means, identification information reading means for reading identification information for specifying the content, charging / non-charging identification means for identifying whether the content is charging or non-charging, and reading by the identification information reading means. Storage means for storing information about the identification information, and when outputting the content from the content output means, whether to store the identification information read by the identification information reading means in the storage means,
Control means for controlling based on the identification result of the charging / non-charging identifying means.

That is, in this data output device, the control means determines whether or not to store the identification information read by the identification information reading means in the storage means based on the identification result of the charging / non-charging identification means. to decide.

In the data output device, when the destination to which the content output means outputs the content is a recording machine and the identification result from the accounting / non-charging identifying means indicates non-charging, the control means Causes the storage unit to store information about the identification information when the content is output.

[0012] Further, the control means controls the external of the content output of the content output means based on the identification result from the charging / non-charging identification means and the count number relating to the identification information stored in the storage means. Control the derivation to

[0013] In order to solve the above-mentioned problems, a data output method according to the present invention includes a charging / non-charging identifying step of identifying whether the content supplied via a medium is charging or non-charging, and A count number determining step for determining whether or not the count number of the identification information for specifying is within a predetermined number; and a content for determining whether to output the content based on the count number in the count number determining step. And an output step.

That is, in this data output method, charging /
It is determined whether or not to output content from the content output step based on the identification result of the non-charge identification step and the determination result of the count number determination step.

That is, when the identification result in the charging / non-charging identifying step indicates non-charging and the determination result in the counting number determining step indicates that the count is within a predetermined number, the content output step includes the counting operation. After the number is increased, the content output is derived to the outside.

When the identification result in the charging / non-charging identifying step indicates non-charging and the determination result in the counting number determining step exceeds a predetermined number, the content output step includes the step of outputting the content. Stop deriving output to outside.

In order to solve the above-mentioned problems, a data recording apparatus according to the present invention performs a new data recording process on a content read from a recording medium and records the content on another recording medium. Identification information reading means for reading identification information for specifying the content, charging / non-charging identification means for identifying whether the content is charging or non-charging, and identification information read by the identification information reading means Storage means for storing information about the identification information read by the identification information reading means when the content recording means records the content. Control means for controlling based on the identification result of the means.

That is, in this data recording apparatus, when recording the content data, the control unit stores the identification information read by the identification information reading unit based on the identification result of the charging / non-charging identification unit in the storage unit. It controls whether or not to make it.

That is, when the identification result from the charging / non-charging identifying means indicates non-charging, the control means causes the storage means to store information on the identification information at the time of recording the content.

The control means causes the content recording means to perform a content recording process when the identification result from the charging / non-charging identification means indicates a charging.

[0021] In order to solve the above-mentioned problems, a data recording method according to the present invention includes a charging / non-charging identifying step of identifying whether a content supplied via a medium is charging or non-charging, and A count number determining step of determining whether or not the count number of the identification information for identification is within a predetermined number; and determining whether to record the content on another recording medium based on the count number in the count number determining step. Determining a content.

That is, in this data recording method, charging /
Based on the identification result of the non-charging identification step and the determination result of the count number determination step, it is determined whether to record the content on another recording medium.

That is, when the identification result in the charging / non-charging identifying step indicates non-charging and the determination result in the counting number determining step indicates that the number is within a predetermined number, the content recording step includes the counting operation. After the number is increased, the content is recorded on another medium.

When the identification result in the charging / non-charging identifying step indicates non-charging and the determination result in the counting number determining step exceeds a predetermined number, the content output step includes the content outputting step. Stop deriving output to outside.

In order to solve the above-mentioned problems, a data recording apparatus according to the present invention performs a new data recording process on a content supplied via a medium and records the content on another recording medium. Charging / non-charging identifying means for identifying whether the content is charged or non-charged, copyright protection information reading means for reading copyright protection information for protecting the copyright of the content, and copyright protection information Copyright protection information rewriting means for rewriting the copyright protection information read by the reading means, wherein the copyright protection information reading means reads the copyright protection information based on the identification result of the charging / non-charging identification means, The copyright protection information is rewritten by the copyright protection information rewriting means as necessary, and then the copyright protection information is rewritten as necessary. Supplied to the content recording means is mixed with the content.

According to the data recording method of the present invention, there is provided a charging / non-charging identifying step for determining whether the content supplied via the medium is charging or non-charging, and copyright protection for protecting the copyright of the content. A copyright protection information checking step of checking information; and a process of rewriting the copyright protection information as necessary based on the check result in the copyright protection information checking step, and then mixing the content with the content as necessary. And a data recording step of recording the processing output of the processing step on another medium.

[0027]

Embodiments of the present invention will be described below. First, an audio data reproducing apparatus which is an embodiment of a data output apparatus and a data output method of the present invention will be described with reference to FIGS.

As shown in FIG. 1, the audio data reproducing apparatus 10 has a content output unit 11 for outputting music content from a signal supplied from the optical disk 1.
An identification information reading unit 15 for reading identification information for specifying the content; and a charging / non-charging identifying unit 16 for determining whether the music content is charging or non-charging.
And a RAM 18 for storing information relating to the identification information read by the identification information reading unit 15. This R
The AM 18 is used to limit the number of copies in the present embodiment, and is therefore referred to as a number limiting RAM 18.

The audio reproducing apparatus 10 includes a spindle motor 21 for rotating the optical disc 1, an optical pickup 20 for reading a recording signal from the rotated optical disc 1, a rotation of the spindle motor 21 and the optical pickup 20 for the optical disc 1. A servo circuit 22 for controlling focus and tracking.

Also, when the audio reproducing apparatus 10 outputs content from the content output section 11,
A central processing unit (CPU) 17 for controlling whether or not the identification information read by the identification information reading unit 15 is stored in the number limiting RAM 18 based on the identification result of the accounting / non-billing identification unit 16; A destination authentication unit 23 that authenticates a destination to which the content (digital data) is output, and a switching unit that switches the content (digital data) from the content output unit 11 through the destination authentication unit 23 under the control of the CPU 17. 2
And a digital output terminal 25 for supplying the contents (digital data) from the switching unit 24 to the outside.
And

The audio reproducing apparatus 10 has a D / A converter 26 for converting the content (digital data) from the content output section 11 into an analog signal, and an analog signal output from the D / A converter 26. And an analog output terminal 27 for external supply.

The content output unit 11 includes an RF amplifier 12
And an demodulation circuit 13 and an error correction decoding circuit 14. The demodulation circuit 13 demodulates and decodes the RF signal read from the optical disc 1 by the optical pickup 20, and outputs the content. For this reason, the RF amplifier 12 binarizes the RF signal, extracts a signal recorded on the optical disc 1, and sends the binarized signal to the demodulation circuit 13. The RF amplifier 12 separates a synchronization signal from the RF signal, extracts a tracking error signal, a focus error signal, and the like, and sends the signal to the servo circuit 22.

The demodulation circuit 13 performs a process of demodulating the modulation performed when recording the content data on the optical disc 1, for example, a process of converting 16 channel bits into 8-bit data. The digital data from the demodulation circuit 13 is sent to the error correction decoding circuit 14.

The error correction decoding circuit 14
The digital data is subjected to an inverse process of the error correction coding performed when the content data is recorded on the digital data. The digital data of the content output from the error correction decoding circuit 14 is transmitted to the destination authentication unit 23 and the D / A converter 2.
6.

The identification information reading section 15 reads identification information for specifying contents from the RF signal read by the optical pickup 20. As the identification information, since the audio data reproducing apparatus 10 targets music content, an international standard recording code (International Standard Recording Code) is used.
ding Code: ISRC) is used. Each title of the music content is uniquely determined by the ISRC.

The charging / non-charging identifying section 16 identifies whether the content is charging or non-charging, and supplies the identification result to the CPU 17.

The number limiting RAM 18 stores the ISRC read by the identification information reading unit 15 under the control of the changeover switch 19 by the CPU 17 according to the accounting / non-billing identification result.

The optical pickup 20 includes a light source of a light beam such as a laser diode, a collimator lens, an objective lens,
Optical components such as a polarization beam splitter and a cylindrical lens are provided. Further, a photodetector including a photodiode is provided. Then, an RF signal is generated by the photodetector and supplied to the RF amplifier 12 and the identification information reading unit 15.

The servo circuit 22 controls the rotation of the spindle motor 21 and the tracking servo of the optical pickup 20 based on the synchronization signal generated by the RF amplifier 12, the tracking error signal, the focus error signal, and the like.
Perform focus servo, etc.

The destination authentication unit 23 is provided with the content output unit 1
1 authenticates the destination to output the content (digital data). Specifically, it authenticates whether the device connected via the digital output terminal 25 is a recording device,
The authentication result is supplied to the CPU 17.

The CPU 17 relates to the output destination of the content output (digital) from the content output unit 11 and the ISRC read from the RF signal by the identification information reading unit 15 based on the identification result of the accounting / non-billing identification unit 16. It controls whether or not the information is stored in the number limiting RAM 18.

That is, the CPU 17 determines that when the content output (digital) of the content output unit 11 is output to the outside via the output terminal 25, the destination is the recording machine, and the identification result from the accounting / non-billing identification unit 16 is received. When non-charging is indicated, the information on ISRC is stored in the number limiting RAM 18 by turning on the changeover switch 19.

The CPU 17 also controls the content output unit 11
Content output (digital) of the content output unit 11 based on the output destination of the content output (digital) from the server and at least the identification result from the charging / non-charging identifying unit 16.
Control of derivation of.

That is, the CPU 17 determines that when the content output (digital) of the content output unit 11 is derived to the outside via the digital output terminal 25, the destination is a recording machine and the identification result from the accounting / non-billing identification unit 16 is obtained. Indicates charging, the changeover switch 24 is turned on and the content output (digital) of the content output unit 11 is led out from the digital output terminal 25 to the external recording device.

The CPU 17 determines whether the output destination of the content output (digital) from the content output unit 11, the identification result from the charging / non-charging identifying unit 16, and the ISRC count stored in the number limiting RAM 18. The output of the content output (digital) of the content output unit 11 to the outside is controlled based on the number.

That is, when the content output (digital) of the content output unit 11 via the digital output terminal 25 is derived to the outside, the CPU 17 determines that the other party is a recording machine, and the identification result from the accounting / non-charging identification unit 16 Is not charged and the count stored in the number limiting RAM 18 is within a predetermined number, the count is increased, and the changeover switch 24 is turned on to output the content (digital ) To an external recorder.

When the content output (digital) from the content output unit 11 via the output terminal 25 is derived to the outside, the CPU 17 determines that the other party is a recording machine, and the identification result from the accounting / non-billing identification unit 16 is output. When the count number stored in the number limiting RAM 18 exceeds a predetermined number, the changeover switch 24 is turned off, and the content output (digital) of the content output unit 11 is transmitted to the external recording device even if is not charged. Prohibit derivation.

FIG. 2 shows an example of a data format recorded in the number limiting RAM 18. In the case of music content, the ISRC (International Standard Cod)
Since each title is uniquely determined in e), use it. In systems with one copy number limit, indicate the number
No bits are needed, but a system with up to three or five bits is required. In this format, ISRC
Is 64 bits per column, including 60 bits, and 64 bits are required to store 1000 songs as described later.

In this example, as shown in FIG. 3, the number of copies and ISRC for 250 songs from number 1 to number 250
Is stored. The number of copies of song number 1 is currently 1
And ISRC is ISRCa. The number of copies of the song of number 3 is currently 4, and ISRC is ISRCb. Also, the number of copies of the song with the number 250 is currently 5, and the ISRC is ISRCx. Assuming that the upper limit of the number of copies is 5, the number of copies of the tune of the number 250 is already 5, so that the subsequent copies are limited.
The current total number of copies is 567. In the specific example shown in FIG. 3, the number of copies and the ISRC are stored for songs up to the number 250.
Up to 1000 songs can be stored. Since the upper limit of the number of copies is 5, the number of copies for all 1000 songs is 5,000.

Next, the processing performed by the CPU 17 of the audio data reproducing apparatus 10 will be described with reference to FIGS. The processing described here is a specific example of a data output method executed by the CPU 17 of the audio data reproducing device 10. This is a process for a copy output request accompanied by a user's designation of content. Digital output terminal 25
Is connected to a recording device.

First, the optical disk 1 is mounted on the audio data reproducing apparatus 10, and in step S1, the copy output mode at the time of the copy output request is selected. At this time, it is determined whether or not the other party can copy, that is, whether or not the other party is a recording machine. Here, if the apparatus is a recording machine, the audio data reproducing apparatus 10 enters a copy output mode in which the secure I / F function is enabled, and the number of copies is limited.

Next, in the audio data reproducing apparatus 10, the optical disk 1 is rotated at a predetermined rotational speed by the spindle motor 21. At this time, the charge / non-charge identification unit 16 is determined based on the RF signal extracted by the optical pickup 20.
Identifies whether the content is charged or not charged. When the CPU 17 receives the identification result and determines that there is no charge (YES in step S2), the process proceeds to step S3, in which the song of the number x which is the target of the copy output mode as shown in FIG. It is determined whether the number of copies is within the limit.

If it is determined in step S3 that the number of copies of the music piece having the number x to be subjected to the copy output mode is within the limit (YES), the number limit RAM 1 is determined in step S4.
After recording the ISRC and / or the number of copies in 8, copy output is performed in step S 5. In this case, there is a case where the ISRC is not present in the number limitation RAM 18, that is, a case where the copy output is started, and a case where the number is within the number limitation. A specific example of this will be described later.

If it is determined in step S3 whether or not the number is within the number limit (NO in step S3), the output is prohibited because the allowable limit is exceeded (step S7).

When the CPU 17 determines from the identification result that the content is a charged content in step S2, charging control is performed at the output destination, so that there is no need to limit the number of copies in this data output device, and Data output (copy output) is performed (step S6).

FIG. 5 shows a detailed process after the CPU 17 receives the identification result and determines that the account is not charged (YES in step S2). If it is determined that there is no charge, the process proceeds to step S12, and it is determined whether or not the ISRC is present in the number limiting RAM 18.

If the ISRC is not present in the RAM 18 for number limitation, that is, if the copy output is started, the number of copies is set to 1 according to the format shown in FIG.
RC is written (step S16), and copy output is performed in step S17. In the case where the allowable number limit is one, the check of “is within the number limit?” In the next step S13 is eliminated only by this flow.

If the limit on the number of copies is less than 5, the answer is YES in step S13, and the corresponding ISRC
Is incremented in the number limiting RAM 18 (1 →
2, 2 → 3, 3 → 4, 4 → 5) to record the ISRC (step S14), and copy and output in step S15.

If it is determined in step S13 that the number is within the number limit (NO in step S13), the output is prohibited because the allowable limit is exceeded (step S18).

As described above, the audio data reproducing apparatus 10 of FIG. 1 employs a system for limiting the number of copies, but only limits the number of copies for non-charging content and limits the number of charging contents. Since it is outside, the device is satisfactory to the user. Also,
This is an apparatus that can use billing content and non-billing content in the same copy number restriction system.

Next, an audio data recording device 30, which is an embodiment of the data recording device and the data recording method of the present invention, will be described with reference to FIGS.

The audio data recording device 30 limits the number of copies on the recording device side. For this reason,
For example, a content recording unit 38 that records the content read from the reproduction optical disc on another data recording medium, for example, the recording optical disc 44, and an identification information reading unit (ISRC) that reads identification information for specifying the content, for example, ISRC A charging / non-charging identifying unit 32 for identifying whether the content is charged or non-charging, and an ISRC read by the ISRC reading unit 36.
And a CPU 33 for controlling the above components when the content recording unit 38 records the content on the recording optical disc 44.

The digital data of the content read from the optical disk for reproduction and input from the input terminal 31 is supplied to a switching unit 37 whose switching is controlled by the CPU 33 via an ISRC reading unit 36. Then, the content is selectively supplied from the switching unit 37 to the content recording unit 38.

The content recording section 38 includes an error correction encoding circuit 39, a modulation circuit 40, a recording amplifier 41, and a recording optical head 42. The error correction encoding circuit 39
An error correction encoding process is performed on the digital data of the content supplied via the switching unit 37. The modulation circuit 40 converts, for example, 8-bit data into 16-channel bit modulation data according to a predetermined modulation method and outputs the data. Then, the recording optical head 42 converts the digital data of the content into the recording optical disk 44 rotated by the spindle motor 43 via the recording amplifier 41.
To record.

The number limiting RAM 34 stores the ISRC and the number of copies in the format shown in FIG.

The CPU 33 determines whether the I
It is determined whether or not the content accompanied by the SRC is for non-charging and the allowable number is already recorded (copied). If so, the recording is prohibited. Otherwise, recording is performed, and in the case of non-charging, recording is performed in the number limitation RAM.

For this reason, when the content recording section 38 records the content, the CPU 33 stores the ISRC read by the ISRC reading section 36 in the number limiting RAM 34.
Is controlled by using the switching unit 35 based on the identification result of the accounting / non-billing identification unit 32.

For example, when the identification result from the charging / non-charging identifying section 32 indicates non-charging, the CPU 33 turns on the switching section 35 and stores the information on ISRC in the number limiting RAM 34 at the time of recording the content.

The CPU 33 controls the content recording process of the content recording section 38 based on at least the identification result from the charging / non-charging identifying section 32. That is,
When the identification result from the accounting / non-billing identification unit 32 indicates the accounting, the CPU 33 causes the content recording unit 38 to perform content recording processing.

The CPU 33 controls the content recording processing of the content recording section 38 based on the identification result from the charging / non-charging identifying section 32 and the ISRC count stored in the number limiting RAM 34. That is, the CPU 33 indicates that the identification result indicates non-charging,
When the count number relating to the ISRC stored in the number limitation RAM 34 is within a predetermined number, the count number is increased and the content recording section 38 is caused to perform the content recording process. Further, the CPU 33 prohibits the content recording process of the content recording section 38 when the identification result indicates non-billing and the count number regarding the ISRC stored in the number limitation RAM 34 exceeds a predetermined number.

Next, the processing performed by the CPU 33 of the audio data recording device 30 will be described with reference to FIG. The process described here is a specific example of a data recording method executed by the CPU 33 of the audio data recording device 30.

First, in step S21, the data recording mode is selected by the user. At this time, the input terminal 31
Is supplied to the charging / non-charging identifying unit 32 and the ISRC reading unit 36.

The accounting / non-billing identification unit 32 identifies whether the content is charging or non-billing, and supplies the identification result to the CPU 33.

The CPU 33 determines whether or not the identification result indicates non-charging in step S22. If no charge is indicated (YES), the flow proceeds to step S23. If it indicates not charging but charging (NO), the process proceeds to step S26.

The ISRC reading section 36 reads the ISRC for specifying the content from the content input and supplies the ISRC to the CPU 33.

Then, the CPU 33 stores the number of copies of the ISRC in the number limiting RAM 34 in the format of FIG.
To determine whether the number is within the number limit. here,
If the number is within the number limit (YES), the process proceeds to step S24, in which the switching unit 35 is turned on to turn on the number limit RAM 34.
After recording the ISRC and / or number of copies,
Copy recording is performed in step S25. In this case, there is a case where the ISRC is not present in the number limitation RAM 34, that is, a case where copy recording is started, and a case where the number is within the number limitation.

In step S26, which is proceeded when it is determined in step S22 that the identification result indicates billing, there is no need to limit the number of copies in the audio data recording apparatus, and data recording (copy recording) is performed as it is.

If it is determined in step S23 whether the number is within the number limit or not (NO), the data recording is prohibited because the allowable limit is exceeded (step S23).
27).

The CPU 33 receives the identification result, and determines that there is no charge (YE in step S22).
The detailed processing after S) will be supplementarily described.

When it is determined that there is no charge, the process proceeds to step S23, and it is determined whether or not the ISRC is present in the number limitation RAM 34.

If the ISRC is not present in the number limiting RAM 33, that is, if copy recording is started, the number of copies is set to 1 according to the format shown in FIG.
RC is written (step S24), and copy output is performed in step S25. In the case where the allowable number limit is one, the check of “is within the number limit?” In the next step S23 is omitted only in this flow.

If the limit on the number of copies is less than five, the answer is YES in step S23, and the corresponding ISRC
Is incremented in the number limiting RAM 34 (1 →
2, 2 → 3, 3 → 4, 4 → 5) to record the ISRC (step S24), and copy recording is performed in step S25.

If the number limit is exceeded (5) in the determination of whether or not the number is within the number limit in step S23 (NO in step S23), data recording is prohibited because the allowable limit is exceeded (step S27).

As described above, the audio data recording apparatus 30 of FIG. 6 employs a system for limiting the number of copies, but only limits the number of copies for non-billing content and limits the number of billing contents. Since it is outside, the device is satisfactory to the user. Also,
This is an apparatus that can use billing content and non-billing content in the same copy number restriction system.

Next, an audio data recording device 50 according to another embodiment of the data recording device and the data recording method of the present invention will be described with reference to FIGS.

The audio data recording device 50 performs a copyright protection process for the content on the recording device side. For this reason, the audio data recording device 50
For example, a content recording unit 58 for recording the content read from the reproduction optical disk on another data recording medium, for example, a recording optical disk 64, and a charging / non-charging identification unit 52 for identifying whether the content is charging or non-charging. When,
Copyright protection information to protect the copyright of the content,
For example, a serial copy management system (SCM
S), an SCMS reading unit 54 for reading information (hereinafter, referred to as SCMS), and an SCMS rewriting unit 5 for rewriting the SCMS read by the SCMS reading unit 54
6 is provided.

The audio data recording device 50
The switching unit 53 switches whether or not to supply the content input to the SCMS reading unit 54 based on the identification result of the charging / non-charging identifying unit 52, and the content input based on the SCMS read by the SCMS reading unit 54. Unit 55 for switching whether or not to supply the same to a mixing unit 57 described later, and a mixing unit 57 for mixing the output from the switching unit 55 and the output from the SCMS rewriting unit 56
And

The content recording section 58 includes an error correction encoding circuit 59, a modulation circuit 60, a recording amplifier 61, and a recording optical head 62. The error correction encoding circuit 59
An error correction encoding process is performed on the digital data of the content mixed with the SCMS rewritten by the mixing unit 57. The modulation circuit 60 converts, for example, 8-bit data into 16-channel bit modulation data according to a predetermined modulation method, and outputs the data. And the recording amplifier 61
The recording optical head 62 records the digital data of the content on the recording optical disk 64 rotated by the spindle motor 63 via the recording optical head 62.

As shown in FIG. 9, the content input from the input terminal 51 is provided with a 1-bit identification code indicating charge / non-charge correspondence and a 2-bit SCMS. When the identification code indicating the charging / non-charging correspondence is "0", it indicates non-charging correspondence, and when it is "1", it indicates charging correspondence. When SCMS is “00”, it indicates copy-free, when it is “01”, it indicates that one-generation copy is possible, and when it is “11”, it indicates that copy is prohibited. When the “01” is copied, it is rewritten to “11”. “10” is a reserve.

Therefore, the charging / non-charging identifying section 52 is set to "0".
, It can be understood that the content is non-chargeable. Further, when "1" is identified, it is understood that charging is supported.

Further, the SCMS reading unit 54 sets "00"
Reading that the content is copy-free. When "01" is read, it can be seen that one-generation copy is possible. Further, when "11" is read, it is understood that copy is prohibited.

The audio data recording device 5
0 controls ON / OFF of the switching unit 53 based on the identification result of the charging / non-charging identifying unit 52, makes the SCMS reading unit 54 read SCMS, and makes the SCMS rewriting unit 56 rewrite SCMS as necessary. The SC
The MS is mixed with the content by the mixing unit 57 as necessary and supplied to the content recording unit 58.

In particular, the audio data recording device 50
When the identification result of the charging / non-charging identifying unit 52 indicates “0” corresponding to non-charging, the switching unit 53 is turned on. Then, the content input is supplied to the SCMS reading unit 54. Here, the SCMS reading unit 54 sets “0”.
When "1" is read, since the SCMS permits copying for only one generation, the SCMS rewriting unit 56
After the CMS is rewritten to “11” for which copying is prohibited, the mixing unit 57 mixes the content with the content.

The audio data recording device 50
In the figure, the identification result of the charging / non-charging identifying unit 52 indicates “0” corresponding to the non-charging, and the SCMS reading unit 54 reads S
When the CMS is “00” and the copy is permitted free, the SCMS rewriting unit 56 does not rewrite the SCMS, but mixes the content with the content in the mixing unit 57.

The audio data recording device 50
In the figure, the identification result of the charging / non-charging identifying unit 52 indicates “0” corresponding to the non-charging, and the SCMS reading unit 54 reads S
When the CMS is “11”, which prohibits copying, the switching unit 55 is turned off to make the content not to be mixed, and the content is not sent to the content recording unit 58.

The audio data recording device 50
When the identification result of the charging / non-charging identifying unit 52 indicates “1” corresponding to charging, the changeover switch 53 is turned off, and the SCMS reading unit 54 and the SCMS rewriting unit 5 are turned off.
6 supply of the content is stopped. Then, the content input is directly supplied to the content recording unit 58 through the switching unit 55 and the mixing unit 57.

Next, the processing performed by the audio data recording device 50 will be described with reference to FIG. The processing described here is a specific example of a data recording method executed by the audio data recording device 50.

First, in step S41, the data recording mode is selected by the user. At this time, the input terminal 51
Is supplied to the charging / non-charging identifying unit 52, the switching unit 53, and the switching unit 55.

The charging / non-charging identifying section 52 reads the first bit in FIG. 9 added to the content and identifies whether the charging is "1" or non-charging "0" (step S42). For example, if the non-charging correspondence "0" is identified, the process proceeds to step S43, where the switching unit 53 is turned on, and then the SCMS reading unit 54 is caused to read 2 bits of SCMS.

When the SCMS reading unit 54 reads “00” in step S43, it is copy-free, so that the SCMS is not rewritten and the content is supplied to the content recording unit 58 and the recording optical disk 64 is recorded (step S44).

In step S43, the SCMS reading unit 5
When 4 reads “01”, since this content can be copied for one generation, SCMS is rewritten to “11”, and then the content is supplied to the content recording unit 58 and data is recorded on the recording optical disk 64. (Step S45).

In step S43, the SCMS reading unit 5
When 4 reads "11", since the content is prohibited from being copied, the switching unit 55 is turned off to prohibit data recording (step S46).

In step S42, charging / non-charging identifying section 5
When 2 identifies billing correspondence "1", the process proceeds to step S47, where the switching unit 53 is turned off and the switching unit 55 is turned on, and data recording is performed without rewriting SCMS.

Here, the recording processing of SCMS (including rewritten SCMS) and content data through the mixing section 57 and the data recording section 58 is performed by using a watermark (WM).
Is embedded in the content itself by so-called spread spectrum (so-called data hiding), so that it is embedded not only in digital output but also in analog signals, and is inherited even when copying is repeated. The emission and history can be tracked.

As described above, the audio data recording device 50 of FIG. 8 employs a copyright protection system, but only protects non-billing contents from being subject to copyright protection.
Since billing contents are excluded, the device is satisfactory to the user. In addition, it is an apparatus that can use billing content and non-billing content in the same copyright protection system.

The audio data output device 10 shown in FIG. 1 and the audio data recording device 3 shown in FIG.
0, ISRC is used as identification information to specify the content.
However, the present invention is not limited to this, and any code may be used as long as the code can identify the content.

In the audio data recording device 50 shown in FIG. 8, SCMS is used as the copyright protection information. However, any code can be used as long as the code can protect the copyright.

Further, the present invention relates to a semiconductor, HDD, CD-R
/ RW, DVD-RAM / R / RW, FDD, MD, tape and other various media.

[0109]

According to the present invention, in a system in which the number of copies is limited, a data output device and a data output method, and a data recording method, in which only the non-charging contents are subject to the copy number restriction and are satisfactory to the user. An apparatus and a data recording method can be provided.

Further, it is possible to provide a data output device and a data output method, and a data recording device and a data recording method that can use billing content and non-billing content in the same copy number restriction system. Further, according to the present invention, in a copyright protection system, a data output device and a data output method, and a data recording device and a data recording method that only a non-billing content is subject to copyright protection and are satisfactory to a user. Can be provided.

Further, it is possible to provide a data output device and a data output method, and a data recording device and a data recording method that can use billing content and non-billing content in the same copyright protection system.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an audio data reproducing device which is an embodiment of a data output device and a data output method of the present invention.

FIG. 2 is a diagram showing an example of a data format recorded in a number limiting RAM.

FIG. 3 is a diagram showing a specific example of data recorded in a number limiting RAM.

FIG. 4 is a flowchart illustrating a specific example of a data output method according to the present invention.

FIG. 5 is a flowchart illustrating a specific example of the data output method in further detail.

FIG. 6 is a block diagram showing a configuration of an audio data recording device as an embodiment of the data recording device and the data recording method according to the present invention.

FIG. 7 is a flowchart for explaining a specific example of the data recording method of the present invention.

FIG. 8 is a block diagram showing a configuration of an audio data recording device according to another embodiment of the data recording device and the data recording method according to the present invention.

FIG. 9 is a format diagram of content data input to the audio data recording device.

FIG. 10 is a flowchart for explaining another specific example of the data recording method according to the present invention.

[Explanation of symbols]

Reference Signs List 10 audio data reproducing device, 11 content output unit, 15 ISRC reading unit, 16 charging / non-charging identifying unit, 17 CPU, 18 number limit RAM, 20
Optical head

Continued on the front page (72) Inventor Tatsuya Inoguchi 7-35 Kita Shinagawa, Shinagawa-ku, Tokyo Sony Corporation F-term (reference) 5D044 AB05 BC01 BC04 CC04 DE50 DE53 EF05 GK12 HL08 HL11

Claims (39)

[Claims] 1. Content output means for performing demodulation processing and decoding processing on a signal supplied from a medium to output charged or non-charged content, and identification information reading means for reading identification information for specifying the content. Charging / non-charging identification means for identifying whether the content is charging or non-charging; storage means for storing information relating to the identification information read by the identification information reading means; and outputting the content from the content output means. A data output device comprising: a control unit that controls whether or not the identification information read by the identification information reading unit is stored in the storage unit based on an identification result of the charging / non-charging identification unit. 2. The data output apparatus according to claim 1, further comprising a reading unit that reads a signal from a recording medium as a medium, wherein the content output unit performs a demodulation process and a decoding process on the signal supplied through the reading unit. . 3. When the destination to which the content output means outputs the content is a recording machine, and the identification result from the charging / non-charging identifying means indicates non-charging, the control means sets the content at the time of outputting the content. 2. The data output device according to claim 1, wherein information relating to identification information is stored in said storage means. 4. The control means according to claim 1, wherein
2. The data output device according to claim 1, wherein the output of the content output by the content output unit to the outside is controlled based on the identification result from the non-billing identification unit. 5. The control unit causes the content output unit to derive a content output to the outside when the identification result from the charging / non-charging identifying unit indicates charging.
Data output device as described. 6. The content output means based on the identification result from the accounting / non-billing identification means and a count number related to the identification information stored in the storage means. 2. The data output device according to claim 1, which controls derivation of the data. 7. When the identification result indicates non-charging and the count number related to the identification information stored in the storage means is within a predetermined number, the control means increases the count number. 5. The data output device according to claim 4, wherein the content output of the content output means is derived to the outside. 8. The content output means, when the identification result indicates non-charging and the count number relating to the identification information stored in the storage means exceeds a predetermined number, the control means outputs the content output means. 5. The data output device according to claim 4, wherein derivation to the outside is prohibited. 9. The data output device according to claim 1, wherein the identification information for specifying the content is an international standard recording code ISRC. 10. The control means, when the identification result from the charging / non-charging identifying means indicates non-charging, and when the count number relating to the ISRC stored in the storage means is within a predetermined number, 10. The data output device according to claim 9, wherein the content output of the content output unit is derived to the outside after the count number is increased. 11. The control unit, when the identification result from the charging / non-charging identifying unit indicates non-charging, and when the count number related to the ISRC stored in the storage unit exceeds a predetermined number, The data output device according to claim 9, wherein the output of the content output by the content output unit to the outside is prohibited. 12. A charging / non-charging identifying step of determining whether the content supplied via the medium is charging or non-charging, and the count number of the identification information for specifying the content is within a predetermined number. A data output method comprising: a count number determining step of determining whether or not to output a content; and a content output step of determining whether to output content based on the count number in the count number determining step. 13. When the identification result in the charging / non-charging identifying step indicates non-charging and the determination result in the count number determining step indicates that the count is within a predetermined number, the content output step includes the counting operation. 13. The data output method according to claim 12, wherein the content output is derived to the outside after the number is increased. 14. When the identification result in the charging / non-charging identifying step indicates non-charging and the determination result in the count number determining step indicates that the number exceeds a predetermined number, the content output step includes the step of outputting the content. 13. The data output method according to claim 12, wherein the derivation of the output to the outside is stopped. 15. Content recording means for newly performing data recording processing on content read from a recording medium and recording the content on another recording medium, and identification information for reading identification information for specifying the content. Reading means; charging / non-charging identification means for identifying whether the content is charging or non-charging; storage means for storing information relating to the identification information read by the identification information reading means; Control means for controlling whether or not to store the identification information read by the identification information reading means in the storage means when recording the content, based on the identification result of the accounting / non-billing identification means. Recording device. 16. The data recording according to claim 15, wherein when the identification result from said charging / non-charging identifying means indicates non-charging, said control means stores information relating to said identification information in said storage means when said content is recorded. apparatus. 17. The content recording unit according to claim 1, wherein the control unit controls a content recording process of the content recording unit based on at least an identification result from the charging / non-charging identifying unit.
6. The data recording device according to 5. 18. The control means causes the content recording means to perform content recording processing when the identification result from the charging / non-charging identification means indicates charging.
The data recording device according to the above. 19. The content recording processing of the content recording means based on an identification result from the charging / non-charging identification means and a count number relating to the identification information stored in the storage means. 16. The data recording device according to claim 15, which controls. 20. When the identification result indicates non-charging and the count number related to the identification information stored in the storage means is within a predetermined number, the control means increases the count number. 20. The data recording apparatus according to claim 19, wherein the data recording unit causes the content recording unit to perform a content recording process. 21. The content recording processing of the content recording means when the identification result indicates non-charging and the count number related to the identification information stored in the storage means exceeds a predetermined number. 20. The data recording device according to claim 19, wherein the data recording device is prohibited. 22. The data recording apparatus according to claim 15, wherein the identification information for specifying the content is an international standard recoding code ISRC. 23. The control unit, when the identification result from the charging / non-charging identifying unit indicates non-charging, and when the count number regarding the ISRC stored in the storage unit is within a predetermined number, 23. The data recording apparatus according to claim 22, wherein the content recording unit performs the content recording process after increasing the count number. 24. The control unit, when the identification result from the charging / non-charging identifying unit indicates non-charging, and when the count number related to the ISRC stored in the storage unit exceeds a predetermined number, 23. The data recording device according to claim 22, wherein the content recording process of the content recording unit is prohibited. 25. A charging / non-charging identification step of determining whether the content supplied via the medium is charging or non-charging, and the count number of identification information for specifying the content is within a predetermined number. A data recording method comprising: a count number determining step of determining whether or not to record content; and a content recording step of determining whether to record content on another recording medium based on the count number in the count number determining step. 26. When the identification result in the charging / non-charging identifying step indicates non-charging and the determination result in the count number determining step indicates that the count is within a predetermined number, the content recording step includes the counting operation. 26. The data recording method according to claim 25, wherein the content is recorded on another medium after the number is increased. 27. When the identification result in the charging / non-charging identifying step indicates non-charging and the determination result in the count number determining step exceeds a predetermined number, the content output step includes the step of outputting the content. 26. The data recording method according to claim 25, wherein the derivation of the output to the outside is stopped. 28. Content recording means for newly performing data recording processing on content supplied via a medium and recording the content on another recording medium; and identifying whether the content is charged or not charged. Charging / non-charging identifying means; copyright protection information reading means for reading copyright protection information for protecting the copyright of the content; copyright protection information for rewriting the copyright protection information read by the copyright protection information reading means. Rewriting means for causing the copyright protection information reading means to read the copyright protection information on the basis of the identification result of the charging / non-charging identification means. After the protection information is rewritten, the copyright protection information is mixed with the content as necessary and supplied to the content recording means. That the data recording device. 29. The data recording apparatus according to claim 28, wherein the copyright protection information is a serial copy management system standard prohibition code. 30. When the identification result of the charging / non-charging identifying means indicates non-charging, and the prohibited code read by the copyright protection information reading means permits only one generation of copying, 30. The data recording apparatus according to claim 29, wherein the protection information rewriting means rewrites the prohibition code to copy prohibition and then mixes the content with the content. 31. When the identification result of the charging / non-charging identifying means indicates non-charging, and the prohibition code read by the copyright protection information reading means permits free copy, the copyright protection is performed. 30. The data recording apparatus according to claim 29, wherein the information rewriting means mixes the prohibition code with the content without rewriting. 32. When the identification result of the charging / non-charging identifying means indicates non-charging and the prohibition code read by the copyright protection information reading means prohibits copying, the content is subject to mixing. Claim 29
The data recording device according to the above. 33. When the identification result of the charging / non-charging identifying means indicates charging, the copyright protection information reading means and the copyright protection information rewriting means are stopped, and only the content is stored in the content recording means. 30. The data recording device according to claim 29, wherein the data is supplied. 34. A charging / non-charging identifying step of identifying whether the content supplied via the medium is charging or non-charging, and copyright protection for checking copyright protection information for protecting the copyright of the content. An information checking step, a processing step of rewriting the copyright protection information as needed based on the check result in the copyright protection information checking step, and then mixing the content with the content as necessary. A data recording step of recording the processing output on another medium. 35. The data recording method according to claim 34, wherein the copyright protection information is a serial copy management system standard prohibition code. 36. When the identification result in the charging / non-charging identifying step indicates non-charging, and the result of the prohibition code check in the copyright protection information checking step indicates that only one generation is permitted to be copied, 36. The processing step rewrites the prohibition code to copy prohibition, and supplies a processing output mixed with the content to the data recording step.
Data recording method described. 37. When the identification result in the charging / non-charging identifying step indicates non-charging, and when the result of the prohibition code check in the copyright protection information checking step permits copying free, the processing is performed. 36. The data recording method according to claim 35, wherein the step supplies a processing output mixed with the content to the data recording step without rewriting the prohibition code. 38. When the identification result in the charging / non-charging identifying step indicates non-charging, and when the prohibition code check result in the copyright protection information checking step prohibits copying, the processing step is 36. The data recording method according to claim 35, wherein the content is not a target of mixing. 39. When the identification result of the charging / non-charging identification step indicates charging, the copyright protection information checking step and the processing step are stopped, and only the content is supplied to the data recording step. 35. The data recording method according to 35.