KR100666288B1 - Outputting apparatus, outputting method, recording apparatus, recording method, reproduction apparatus, reproduction method and recording medium - Google Patents

Abstract

Recording control with additional information superimposed on data and recording control in response to the type of recording medium on which data is recorded are disclosed. The recording apparatus for recording data on the recording medium includes an identification data detection unit for detecting identification data for identification of data from the data, and a copy count data detection unit for detecting copy count data for limiting the number of times of copying data from the data. And a recording control section for controlling recording of data on the recording medium based on the identification data detected by the identification data detection section and the copy count data detected by the copy count data detection section. Another recording apparatus for recording data on a recording medium selects a discriminating unit for distinguishing a type of recording medium, and a recording control method for recording data on the recording medium in response to the discriminating unit, and according to the selected recording control method. And a control unit for controlling the recording of data for the.

WM forming unit, data compression processing unit, additional information adding unit, recording processing unit, digital interface, information adding unit, recording / deleting control unit

Description

Output apparatus, output method, recording apparatus, recording method, reproducing apparatus, reproducing method, and recording medium {Outputting apparatus, outputting method, recording apparatus, recording method, reproduction apparatus, reproduction method and recording medium}

1 is a block diagram showing an authoring apparatus for a CD in a first embodiment of the present invention;

FIG. 2 is a block diagram showing a reproduction device of the first embodiment for reproducing a CD produced from a master CD produced by the authoring device of FIG.

FIG. 3 is a block diagram showing the recording apparatus of the first embodiment for recording audio signals reproduced and output from the reproduction apparatus shown in FIG.

FIG. 4 is a view for explaining a copy history information management memory of the recording apparatus shown in FIG.

Fig. 5A is a diagram for explaining additional information added to content information recorded on a CD.

FIG. 5B is a view for explaining additional information reproduced from the CD of FIG. 5A, added to the content information, and copied to the MD; FIG.

FIG. 6 is a flowchart for explaining a processing procedure of the recording apparatus shown in FIG. 3 when copying content information.

FIG. 7 is a flowchart for explaining a processing procedure of the recording apparatus shown in FIG. 3 when deleting content information. FIG.

8 is a diagram for explaining a method of controlling information signal copy control in a second embodiment of the present invention;

Fig. 9 is a block diagram showing an audio / video device serving as the recording device and the reproduction device of the second embodiment.

Fig. 10 is a diagram showing an audio / video recording medium of the second embodiment.

Fig. 11 is a diagram showing a recording medium for general-purpose data of the second embodiment.

FIG. 12 is a flowchart for explaining the processing carried out by the audio / video device shown in FIG. 9 when recording an information signal.

Fig. 13 is a block diagram showing another audio / video device operating as the recording device and the reproduction device of the second embodiment.

FIG. 14 is a flowchart for explaining the processing carried out by the audio / video device shown in FIG. 13 when recording an information signal.

Fig. 15 is a block diagram showing a general purpose device operating as the recording device and reproduction device of the second embodiment.

※ Explanation of symbols about main part of drawing ※

1: Input terminal 2: WM overlap

6 WM forming unit 7 data compression processing unit

8: additional information addition unit 9: recording processing unit

22: data decoding section 24; Digital interface

39: information adding unit 42: recording / deleting control unit

Background of the Invention

The present invention relates to an output device, an output method, a recording device, a recording method, a reproduction device, a reproduction method, and a recording medium on which various information signals such as, for example, an audio signal and / or a video signal or a computer signal can be recorded. will be.

Recently, as digital contents such as the Internet, compact discs (CDs), and digital video discs (DVDs) have spread, copyright infringement caused by illegal copying of digital contents has become a problem. In response to this problem, it has been proposed to add information for copy control to digital contents and to use the information to prevent illegal copying.

Various control methods have been proposed to prevent copying, which means that depending on the information source, there is no way to allow copying at all, and another way to allow copying once but to prevent copying from copying the original, namely generation generation. Includes a copy control system to limit it. The former method is applied to the original software which is produced and sold by the content creator, for example, DVD-ROM (Digital Video Disc-Read Only Memory). The latter generation limited copy control method is applied, for example, to information broadcasting from a broadcast medium.

The latter generation limited copy control method is required to allow the owner of the copyright to effectively control the copy generation. Various copy control methods have been proposed to allow such a copy generation management, which includes a serial copy management system (SCMS) for an audio signal, a copy generation management system (CGMS) for a video signal, and an electronic watermark technology. It includes how to use.

The SCMS system uses a category code indicating the type of digital audio system, such as a compact disc (CD) or digital audio tape (DAT), or a copy prohibit / permit flag to permit digital copying once. Use (flag) to perform serial copy control.

In particular, according to the SCMS method, the generation restriction control of digital audio signal copying may be executed based on the SCMS information including a copy prohibition / permit flag and a category code transmitted together with the digital audio information such that copying of the first generation digital audio signal is allowed. However, the copied digital audio signal can no longer be copied.

On the other hand, according to the CGMS method, for example, when applied to an analog video signal, two bits of additional information for copy control are superimposed on one specific horizontal portion in the vertical empty period of the analog video signal, If applicable, two bits of additional information for copy control are added to the digital video data and transmitted together.

The two bits of information used in the CGMS method (this information is hereinafter referred to as CGMS information) are defined to have the following meanings:

"00" ... copy allowed

"10" ... one copy allowed (copy only allowed for generation 1 generation)

"11" ... copying is prohibited (copy never)

When the CGMS information added to the video information is " 10 ", the recording apparatus for the CGMS determines that copy recording of the video information is allowed, and records the video information. However, the recording apparatus rewrites the CGMS information to " 11 " and adds the rewritten CGMS information to the recorded video information. On the other hand, if the CGMS information added to the recorded video information is " 11 ", the recording apparatus for the CGMS determines that copy recording of the video signal is prohibited, and does not record the video information.

On the other hand, according to the electronic watermark processing, information such as noise is inserted into a part which is given to video data or music data and which is not important to a person, that is, a part which is not redundant of music or an image. The additional information inserted into the video data or the music data by such electronic watermark processing cannot be easily removed from the video data or the music data. On the other hand, even after the filtering process or the data compression process is performed on the video data or the music data, the additional information of the inserted electronic watermark is detected in the video data or the music data.

In the copy control method using the digital watermark processing as described above, the additional information to be inserted is defined to represent the following four conditions:

(1) "Copy Free",

(2) "Copy allowed once (copy allowed only for generation 1 generation) (Copy Once)",

(3) "No More Copy", and

(4) "Never Copy",

This represents a copy generation condition and a copy restriction condition of the audio data or the music data in which the electronic watermark information is superimposed.

(1) "Copy Free" indicates that free copying of music data or video data is allowed. (2) "Copy allowed once (copy allowed only for generation 1 generation) (Copy Once)" indicates that copying of music data or video data is allowed only once. (3) "No More Copy" means that the music data or video data is a copy of the music data or video data under the condition of (2) "Copying is allowed once" and is no longer copied. Indicates. (4) "Never Copy" indicates that copying is prohibited.

When the electronic watermark information superimposed on the video data or music data is "Copy Once", the recording device capable of performing the electronic watermark processing, that is, the copy limiting process, can be used as the video data or Recording is performed by determining that music data can be copied. However, if recorded in this way, the recorded video data or music data is superimposed with electronic watermark information rewritten as " No More Copy ". On the other hand, if the electronic watermark information superimposed on the recorded video data or music data is "No More Copy", the recording device capable of performing the electronic watermark processing is a copy recording of the video data or music data. It is determined that this is prohibited and no records are taken.

In this manner, the copy generation limit control uses a method of using electronic water processing, a CGMS method, and an SCMS method, in which an information signal of audio data and / or video data can be copied within a personal use range that is copied and used at home. This is done by a copy generation limiting method such as However, since copying of the copied information signal is prohibited, continuous copying of the copied information signal is prevented so that the gain or right of the copyright owner of the information signal is not illegally violated.

When copy generation limit control of the information signal is executed using the SCMS method, the CGMS method, or the method using the electronic water processing, copying the copied information signal to another recording medium is prevented. In other words, making a copy of the second generation from the copy of the first generation is prohibited. However, the problem remains that the first generation of copies is executed many times. In particular, there is a problem that, for example, the original information signal recorded on a CD or DVD and provided from a content producer can be copied without limitation from the recording medium.

A possible response to the problem just described is to discontinue the use of the above-mentioned copy generation restriction method, including the risk of copying the information signal multiple times, and to provide the information signal in the form of a copy-protected disc from which copying of the information signal is prohibited from the outset. .

However, in the case where the information signal is provided in the form of a copy-protected disc, although the rights of the copyright owner of the information signal can be reliably protected, the user of the information signal cannot use the target information signal except for the copy-protected disc. It can be excessively limited. As a result, this is an undesirable countermeasure.

For example, for a copy-protected disc, only the favorite music data from the CD is selected, such as executed within the personal copy range, and a small magneto-optical called MD (Mini Disc; trademark), cassette tape, semiconductor memory, or the like. There is a limit to how you can copy selected music to a disc and also enjoy listening to it using a car stereo device or listening to it on a commuter train using a portable playback machine.

On the other hand, if the reproduction speed or recording speed of the audio signal or video signal is increased, the copy of the target audio signal or video signal can be recorded on the recording medium at a higher speed. In this case, since the target information can be copied in a shorter time, more recording media to which the same information signal is copied can be produced. When such a large number of copy information signals are sold, the copyright owner of the information signal is greatly damaged.

In particular, when a general-purpose device such as a computer capable of executing various information processing is included, it can reliably copy the information signal from its characteristics at high speed. In addition, since the reception and distribution of the information signal through the network can be performed relatively easily, the possibility of making a large number of copies of the same information signal is greater.

Thus, when the information signal is copied, copy generation restriction control as described above is not executed, but the identification information of the copied information signal is stored in each recording device, and each storage device is the same as the information already recorded in the recording device. A copy limiting method that does not copy the information signal with the identification information is available. In other words, the copy limitation or control method allows only one copy for each information signal and each recording device.                         

However, when only the above-described copy control method is used, copying of the information signal is allowed only once for each recording apparatus, so that a new restriction is imposed on the user of the information signal with respect to the copying of the information signal. For example, although copying of the information signal recorded on the original recording medium such as CD or DVD can be executed many times when the copy generation limiting method is used, such copying is allowed only once by the copying limiting method. Therefore, restrictions are imposed on the copying of the information signal within the scope of personal use, thereby reducing the convenience for the user of the information signal.

Summary of the Invention

It is an object of the present invention to provide an output device, an output method, a recording device, a recording method, which can effectively prevent illegal copying of an information signal to appropriately protect the rights of the copyright owner of the information signal without reducing the convenience of the user of the information signal. A reproducing apparatus, a reproducing method, and a recording medium are provided.

In order to achieve the above object, according to one aspect of the present invention, an identification data detection unit for detecting identification data for identification of data from the data, and copy count data for limiting the number of copies of the data from the data; And a copy control unit for controlling recording of data on the recording medium based on the identification data detected by the identification data detection unit and the copy count data detected by the copy count data detection unit. A recording apparatus for recording on a recording medium is provided.

According to still another aspect of the present invention, a discriminating unit for distinguishing a type of recording medium and a recording control method used for recording data on the recording medium in response to the discriminating unit are selected, and the recording medium is selected according to the selected recording control method. A recording apparatus for recording data on a recording medium is provided, including a control unit for controlling the recording of the data on the recording medium.

The above and other objects, features, and advantages of the present invention will become apparent from the following description and claims taken in conjunction with the accompanying drawings, in which like parts or elements are denoted by the same reference signs.

Description of the preferred embodiment

First embodiment

First, a first embodiment of the present invention is described. The following description of the first embodiment describes that audio data of music data is recorded as content information and provided to a user on a compact disc (hereinafter simply referred to as CD), and the audio signal recorded on the CD is reproduced and outputted by a CD player, thereby recording apparatus. By way of example, a copy (playback) of a mini disc (hereinafter simply referred to as MD) is given as an example.

"Authoring Apparatus"

Fig. 1 shows a recording apparatus for an audio signal for producing a master CD in which an audio signal such as music data is recorded as content information, for example. The recording apparatus is used by the content producer side and is called an authoring apparatus.

Referring to Fig. 1, the illustrated authoring apparatus includes an input terminal 1, an electronic watermark information superposition section (hereinafter referred to as a WM overlapping portion) 2, and an electronic watermark information forming portion (hereinafter). (Referred to as WM forming section) (6), content ID generating section (3), copy generation management information generating section (4), copy count management information generating section (5), data compression processing section (7), additional information adding section ( 8), a recording processing unit 9, a control unit 10, and a key operation unit 11 are included. Music data produced by the authoring apparatus is recorded on the CD 100.

The authoring apparatus of the present invention adds three kinds of information including content ID, copy generation management information, and copy count management information as additional information to music data as content information. To this end, the content ID generation unit 3, the copy generation management information generation unit 4, and the copy count management information generation unit 5 shown in Fig. 1 are configured to generate corresponding additional information.

The content ID generating unit 3 of the present invention generates the content ID as identification information for identification of music data recorded as the content information on the CD 100. The content ID of this embodiment is an International Standard Recording Code (ISRC).

The copy generation management information generation unit 4 generates information for managing copy generation for each piece of music data. In this embodiment, the information is SCMS information including a copy allow / prohibit flag and the like.

The copy count management information generation unit 5 generates information for limiting the number of copies of each music data. In this embodiment, the information is, for example, the number of allowed copies determined by the copyright holder.

The authoring apparatus user of this embodiment is allowed to add content ID, SCMS information, and permission added to the music data recorded on the CD 100 through the key operating unit 11 before recording of the music data on the CD 100 starts. Enter the number of copies. The control unit 10 transmits a control signal indicating information generated in response to an instruction input by the user, the content ID generating unit 3, the copy generation management information generation unit 4, and the copy count management information generation unit 5; To feed.

As a result, the content ID generation unit 3, the copy generation management information generation unit 4, and the copy count management information generation unit 5 are respectively transferred from the authoring apparatus user of this embodiment in accordance with a control signal from the control unit 10. Content ID, SCMS information, and number of allowed copies according to the input instruction are formed, and the signal thus produced is supplied to the WM forming section 6 and the additional information adding section 8.

The WM forming unit 6 performs digital watermark processing on the supplied content ID, SCMS information, and the allowed copy count to form digital watermark information indicating this. The electronic watermark processing is a process of inserting information as noise in a portion which is given to video data or music data but is not importantly recognized by a person, that is, a portion which is not redundant in the music or image as described above.

The WM forming unit 6 of the authoring apparatus executes a spread spectrum process on the supplied content ID, SCMS information, and the allowed copy count to form electronic watermark information indicating the content ID, SCMS information, and the allowed copy count. do. The digital watermark information is supplied to the WM superimposition section 2.

For example, a digital audio signal such as music data recorded on the CD 100 is supplied to the WM overlap section 2 via the input terminal 1. The WM superimposition section 2 is provided with electronics corresponding to the content ID, SCMS information, and the number of allowed copies formed by the WM forming section 6 in the manner described above in the digital audio signal supplied through the input terminal 1. Overlap watermark information.

In this case, the content ID, SCMS information, and electronic watermark information corresponding to the allowed number of copies can be superimposed on the simultaneous area of the digital audio signal, while the electronics corresponding to the content ID, SCMS information, and allowed number of copies can be superimposed. The watermark information is superimposed on different time domains of the digital audio signal. The digital audio signal superimposed by the WM superimposition section 2 in the form of the content ID, the SCMS information, and the allowed copy number in the form of electronic watermark information is supplied to the data compression processing section 7.

The data compression processing section 7 compresses the supplied digital audio signal according to a predetermined method, and supplies the resulting signal to the additional information adding section 8. The additional information adding unit 8 collects the content ID, SCMS information, and the number of copies allowed from the content ID generating unit 3, the copy generation management information generating unit 4, and the copy count management information generating unit 5; As described above, it adds to the digital audio signal of the music data recorded on the CD 100.

In this case, the additional information is recorded in the Table of Contents (TOC) or directory (CD) of the CD 100 so as to correspond to the recorded music data, or added to an area different from the music data but having a corresponding relationship with the music data. In other words, additional information is added to each music data so that additional information corresponding to the target music data can be read upon reading.

The digital audio signal to which the content ID, the SCMS information, and the allowed number of copies are added from the additional information adding unit 8 is recorded by the recording processing unit 9 into the CD 100.

As a result, a CD 100 is produced in which the content ID, SCMS information, and the number of permitted copies of the music data are superimposed with electronic watermark information, respectively, and added with digital additional information. In this embodiment, a large number of CDs in which the same information is recorded from the CD 100 determined as the master CD are produced and provided to a large number of terminal users.

"Playback device"

2 shows a playback apparatus for an audio signal in this embodiment. In this embodiment, the reproduction apparatus for the audio signal is a CD player. The CD player of this embodiment can play a CD 100S made based on the CD 100 produced by the authoring apparatus described above with reference to FIG.

Referring to Fig. 2, the CD player of the present embodiment shown in the drawing shows a reader 21, a data decoder 22, a D / A converter 23, an output terminal 23a for an analog audio signal, and a digital interface 24. ), An output terminal 241d for the digital audio signal, and an output terminal 242d for the digital additional information.

The reading unit 21 reads music data recorded as a digital audio signal on the CD 100S, and additional information added to the music data. The music data thus read is supplied to the data decoder 22 and the digital interface 24. On the other hand, the additional information read out from the CD 100S is supplied to the digital interface 24.

The data decoder 22 executes a decoding process on the music data in the form of the decompressed digital audio signal according to a predetermined method, and supplies the music data of the compressed digital audio signal to the D / A converter 23. . The D / A converter 23 converts the supplied decompressed music data of the digital audio signal into music data of the analog audio signal, and outputs the music data in the form of an analog audio signal through the output terminal 23a.

In this case, the content ID of the digital data added to the area other than the digital audio signal by the additional information adding unit 8 of the authoring apparatus described above, SCMS information, and the number of copies allowed are analog audio audio data of the digital audio signal. It is lost as a result of conversion to information.

However, the content ID, SCMS information, and allowed copy number of the electronic watermark information superimposed on the same time domain as the digital audio signal are not lost even if the digital audio signal is converted into the analog audio signal, and is output together with the analog audio signal to output the speaker. Supplies to earphones, headphones, audio signal recording devices and the like.

On the other hand, the digital audio signal and additional information in the form of digital signals are supplied to the digital interface 24, the digital audio signal is output to the output terminal 241d, and the additional information is output to the output terminal 242d. The additional information output in this manner and the music data in the form of digital audio signals are supplied to a recording device for an audio signal having a digital interface, for example.

"Recorder"

FIG. 3 shows a recording apparatus for an audio signal for receiving an audio signal such as music data reproduced and output from the CD player shown in FIG. 2 and recording the audio signal on a recording medium, for example. In this embodiment, the audio signal recording apparatus shown in Fig. 3 is a recording and reproducing apparatus (hereinafter simply referred to as MD apparatus) for an MD (mini disc). Magnetic disks such as hard disks or semiconductor memories may be used in place of MDs. It should be noted that for the sake of brevity, the description of the audio reproduction system of the MD apparatus is omitted.

Referring to FIG. 3, the MD device of this embodiment includes an input terminal 31 for an analog audio signal, an analog interface 32, a compression encoder 33, a selector 34, and an input terminal 35 for a digital audio signal. ), An input terminal 36 for digital additional information, a digital interface 37, an additional information detecting unit 38, an additional information adding unit 39, an electronic watermark information rewriting unit (hereinafter referred to as a WM rewriting unit) (40) ), Digital watermark information decoding unit (hereinafter referred to as WM decoding unit) 41, recording / deleting control unit 42, reading unit 43, additional information detecting unit 44 for deletion audio information, control unit 50 , A key operation unit 51, a copy history information management memory 52, and a device ID memory 53. The MD 200 used in the MD apparatus is a small magneto-optical disk called a mini disk as described above.

As can be seen in Figure 3, the MD device of this embodiment receives the supplied analog audio signal or digital audio signal is copied to the MD 200 and the audio signal copied to the MD 200 when necessary, the MD (200) It includes an analog interface 32 and a digital interface 37 to be deleted from.

"Copy of the audio signal to MD 200"

The music data in the form of an analog audio signal input through the input terminal 31 is supplied to the compression encoder 33 via the analog interface 32, whereby predetermined compression processing is executed, and the resultant data is selected by the selector 34. Is supplied.

On the other hand, music data in the form of digital audio signals input through the input terminal 35 is supplied to the selector 34 through the digital interface 37. On the other hand, the additional information input through the input terminal 36 for digital additional information is supplied to the additional information detector 38 via the digital interface 37.

The additional information detector 38 includes a content ID detector 381, a copy generation management information detector 382, and a copy count management information detector 383, as shown in FIG. Target additional information is detected from the information supplied through the target.

In particular, the content ID detection unit 381 detects the content ID. The copy generation management information detection unit 382 detects SCMS information which is copy generation management information. The copy count management information detector 383 detects the allowed number of copies that is copy count management information. The content ID, SCMS information, and the number of allowed copies detected by the components of the additional information detector 38 are supplied to the controller 50.

The selector 34 represents a selection input from the user and selectively outputs one of the data of the compression encoder 33 and the data of the digital interface 37 in accordance with the selector control signal input from the key operating unit 51. The output data of the selector 34 is supplied to the recording / deleting control section 42 via the additional information adding section 39 and the WM rewriting section 40. The output data of the selector 34 is also supplied to the WM decoder 41.

The WM decoder 41 extracts and distinguishes the content ID, SCMS information, and the number of allowed copies which are superimposed on the output data of the selector 34 in the form of an audio signal with electronic watermark information. The distinguished output of the WM decoder 41 is supplied to the controller 50.

The reason why the content ID superimposed with the electronic watermark information, the SCMS information, and the number of allowed copies are extracted and distinguished from the output data of the selector 34 by the WM decoding section 41 in this manner is that the analog audio signal is recorded in the recording apparatus. Because it is supplied to.

Specifically, the CD 100S has music data recorded in the form of a digital audio signal, and has a content ID, SCMS information, and allowed copy count recorded in a different area from where the digital audio signal is recorded. Therefore, even if the digital audio signal and additional information recorded on the CD 100S are read out, when the digital audio signal is converted into an analog audio signal and the resulting analog signal is output, it is added to an area different from that for the digital analog signal. The content ID, SCMS content, and allowed copy count are not output.

Therefore, the content ID, SCMS information, and the number of allowed copies, which are electronic watermark information that can be accurately detected when the digital audio signal is converted into an analog audio signal and do not overlap and disappear on the digital audio signal, are sent to the WM decoding unit 41. Can be detected.

As a result, the MD apparatus of this embodiment can obtain the content ID, SCMS information, and the number of allowed copies corresponding to the audio signal from either the analog audio signal or the digital audio signal.

The WM decoder 41 may alternatively be used only when the selector 34 is exchanged by the user so that the audio signal from the compression encoder 33 can be recorded in the MD 200, that is, the recording device is via an analog interface. It should be noted that only when processing the supplied audio signal can be configured to detect additional information in the form of digital watermark information under the control of the controller 50.

The MD device of the present embodiment, for each device and each music data, the copy history information recorded in the copy history information management memory 52 of the MD device itself, the content ID of the music data in the form of supplied audio signal, SCMS information, and The management of the copy count is executed based on the allowed copy count.

In the MD apparatus of the present invention, when the SCMS information added to the music data instructed to be copied to the MD 200 indicates copying prohibition, the control section 50 records / prohibits copying the audio signal to the MD 200. The deletion control unit 42 is controlled.

However, if the SCMS information added to the music data instructed to be copied to the MD 200 indicates permission of generation 1 copying, the control section 50 already stores the copy history information having the content ID of the music data instructed to be copied. Reference is made to the copy history information management memory 52 of the MD device itself to check whether or not it has been performed.

4 illustrates copy history information stored in the copy history information management memory 52 in this embodiment. As can be seen in FIG. 4, copy history information including the content ID and the number of allowed copies are stored in the copy history information management memory 52. FIG.

If copy history information having the content ID of the music data instructed to be copied is not found in the copy history information management memory 52, the control section 50 of this embodiment includes the content ID added to the music data and the number of copies allowed. Copy history information is created in the copy history information management memory 52.

As a result, copy history information corresponding to the music data instructed to be copied is provided to the copy history information management memory 52. At this time, if the allowed number of copies of the copy history management information corresponding to the music data to be copied stored in the copy history information management memory 52 is 0, the controller 50 already executes the copy as much as the number of times initially allowed. And the recording / deleting control section 42 is controlled to prohibit copying of the music data.

On the other hand, if the allowed number of copies of the copy history information corresponding to the music data to be copied stored in the copy history information management memory 52 is one or more times, the controller 50 enters the copy history information management memory 52. The allowed copy count of copy history information is reduced by 1 to update the allowed copy count of stored copy history information.

Thus, the controller 50 supplies the additional information adding unit 39 with the content ID of the music data instructed to be copied, the SCMS information indicating the copy prohibition, the number of allowed copies, and the device ID.

Here, when the music data instructed to be copied is supplied to the digital interface 37, the content ID and the number of allowed copies are sent to the content ID detector 381 and the copy count management information detector 383 of the additional information detector 38, respectively. Information detected by On the other hand, when the music data instructed to be copied is supplied via the analog interface 32, the content ID and the allowed copy count are information of the content ID and the allowed copy count distinguished by the WM decoding unit 41.

On the other hand, SCMS information indicating copy prohibition is information formed by the control unit 50, for example. The device ID is previously stored in the device ID memory 53 connected to the controller 50 and is unique information to the device to allow identification of the device.

Specifically, in the present embodiment, the device ID unique to the recording device is stored in the device ID memory 53 when the recording device is produced, for example, and when copying the music data, the device ID is read by the controller 50. And is supplied to the additional information adder 39 together with other additional information.

It should be noted that the device ID memory can be stored in the ROM provided to the controller 50 and read from the ROM and supplied to the additional information adder 39 in another manner, without having to provide the device ID memory as a separate memory.

The additional information adder 39 adds the content ID, the SCMS information, the number of copies allowed, and the device ID to the audio signal from the selector 34. The control unit 50 also supplies SCMS information indicating copy prohibition to the WM rerecording unit 40. The WM rerecording unit 40 spreads the SCMS information indicating copy prohibition from the control unit 50 to form digital watermark information, and supplies the digital watermark information to the additional information adding unit 39.

In the present embodiment, SCMS information in the form of superimposed electronic watermark information is subsequently removed in advance, and then new SCMS information indicating copy prohibition in the form of electronic watermark information is superimposed on the music data copied to the MD 200.

As described above, without needing to superimpose new digital watermark information after the already superimposed digital watermark information is removed, the SCMS information indicating the copy prohibition newly formed with the electronic watermark information is already superimposed on the audio signal in another way. It should be noted that the digital watermark information may be superimposed at a different position than the superimposed. In other words, SCMS information indicating copy prohibition in the form of electronic watermark information should be superimposed on the copied music data to allow extraction and discrimination.

In this manner, the music data in which the additional information is added by the additional information adding unit 39 and the WM rerecording unit 40 and the SCMS information is rewritten in the form of electronic watermark information is supplied to the recording / deleting control unit 42. .

In this case, since the music data supplied to the recording / deleting control section 42 is the data which is allowed to generate the first generation, the recording / deleting control section 42 sends the target music data to the MD 200 under the control of the control section 50. Copy As a result, the music data in the form of an audio signal supplied from the CD player shown in Fig. 2 is reproduced by the MD apparatus of this embodiment shown in Fig. 3 while the number of copies is managed in the case where the audio signal is a first generation audio signal. Copies can be made as many times as the number of copies allowed.

As described above, since the copying of the music data is executed for the number of copies, since the allowed copy number of the copy history information stored in the copy history information management memory 52 of the MD device and having the content ID of the music data is 0, The music data can no longer be copied as described above.

FIG. 5A shows a CD 100S played by the CD player shown in FIG. 2, and FIG. 5B shows an MD 200 to which audio signals reproduced and output by the CD player are copied by an MD device to which audio signals are supplied. ).

As can be seen in FIG. 5A, the music data is stored in the CD 100S produced from the CD 100 actually produced by the authoring apparatus shown in FIG. The content ID, SCMS information as copy generation management information, and allowed copy count as copy count management information are added to the music data, and also superimposed on the music data as electronic watermark information.

When music data recorded on the CD 100S is reproduced by the CD player and supplied to the MD apparatus to be copied to the MD 200 as shown in Fig. 5B, the SCMS indicating the copy prohibition with the content ID and the copy generation management information. , The allowed copy count as copy count management information, and the device ID of the MD device are added to the music data copied to the MD 200, the content ID, SCMS indicating copy prohibition, and the allowed copy count are electronic watermark information. As superimposed on music data.

The SCMS information added to the recorded music data and superimposed with the electronic watermark information is SCMS information indicating copy prohibition as described above. Based on the SCMS information indicating the copy prohibition, the music data copied to the MD 200 is prohibited from being copied to another recording medium. In other words, the music data copied once to the MD 200 is no longer copied.

"Deleting the Audio Signal Copied to the MD 200"

The MD apparatus of this embodiment also has a function of deleting the music data copied to the MD 200 as described above. When the music data copied to the MD 200 is deleted by the MD apparatus of this embodiment, the number of copies allowed for the copy history information of the music data to be deleted stored in the copy history information management memory 52 is increased by one. .

As a result, even if the music data is copied once to the MD 200, if the copied music data is later deleted from the MD 200, further copying is allowed even after the music data has been copied for an initially permitted number of copies.

The MD device of this embodiment is configured to accept an instruction input from a user to delete data copied to the MD 200 via the key operation unit 51. In this case, the MD device may be controlled such that all music data recorded in the MD 200 is deleted or the target music data is deleted, for example, music data having a specified sequence number.

When the delete instruction is input by the user, the controller 50 controls the reading unit 43 to read additional information added to the music data recorded in the MD 200 to which the delete instruction is input. The read additional information is supplied to the additional information detector 44 so that the audio signal is deleted. The additional information detector 44 includes a content ID detector 441 and a device ID detector 442 as shown in FIG.

The content ID detection unit 441 detects a content ID of music data instructed to be deleted. The device ID detector 442 detects the device ID of the device which copied the music data instructed to be deleted to the MD 200. The detected content ID and the device ID are supplied to the controller 50.

The control unit 50 restores the copy history information of the copy history information management memory 52 based on the content ID from the content ID detection unit 441. If copy history information with the same history ID is not found, or copy history information with the same history ID is found, but the device ID detected by the device ID detection unit 442 and the device ID for the MD device of this embodiment are different from each other, Since the music data to be deleted is not copied by the MD device, the control section 50 controls the recording / deleting control section 42 to delete the music data instructed to be deleted by the user from the MD 200.

However, copy history information having the same content ID as the content ID detected by the content ID detection section 441 is given, and the device ID detected by the device ID detection section 442 and the device ID for the MD device of this embodiment are mutually different. If there is a match, this means that the deleted music data has been copied by the MD device.

In this case, the controller 50 increases the number of allowed copies of the corresponding copy history information stored in the copy history information management memory 52 by one, and in this embodiment, the MD (music data) instructed to be deleted by the user is stored in the MD ( The recording / deleting control unit 42 is controlled to delete from the 200.

As a result, if an audio signal copied by the MD device to the MD 200 and the allowable copy count is limited is attempted to be deleted by the MD device, the allowed copy count of the copy history information stored in the copy history information management memory 52 is Since the number of deletions is added, the number of copies of the music data from which the music data has been deleted is allowed.

Briefly, the number of copies allowed in this case corresponds to the number of times that music data can be formed by copying. Therefore, if the number of allowed copies is plural and copying is performed by the same number of times as the number of copies allowed for other recording media, the number of recording media to which music data is copied is equal to the initial value of the number of times allowed to copy music signals.

After the music data recorded on the CD 100S has been copied for the same number of times as the allowed initial copy number, the audio signal can no longer be copied. In other words, as long as the same number of copy music data exists in the allowed number of initial copies, copying of the music data is prohibited.

However, if the music data is deleted by the copied MD device, the allowable copy count of the copy history information managed by the MD device is increased as described above, so that the music data is allowed to be copied further by the MD device.

As a result, for example, when a user wishes to personally copy and enjoy the music data recorded and provided on a CD to another recording medium, the music data may be protected to protect the rights of the copyright owner of the music data without reducing the user's convenience. Copying may be limited.

"Processing when copying and deleting music data"

Now, the process at the time of copying the music data executed by the MD apparatus of the present invention is set with reference to the flowchart of FIG. 6, and the process at the time of deleting the music data recorded in the MD is described with reference to the flowchart of FIG.

Fig. 6 is a flowchart for explaining a processing procedure in the MD device of this embodiment when copying music data. The processing is executed when an instruction to start copying the supplied music data is input.

When an instruction to start copying is input by the user via the key operating section 51, the control section 50, for example, as described above, provides music data supplied from an output device of an information signal or a playback device such as a CD player. The copy generation management information detection unit 382 or the WM decoding unit 41 is controlled to confirm the SCMS information which is copy generation management information detected from the step (step S101).

Subsequently, the control section 50 discriminates whether or not the SCMS information indicates copy prohibition, copy permission of generation 1 generation, or free copy permission (step S102). If the control section 50 discriminates that the SCMS information confirmed in the discrimination process of step S102 indicates copy prohibition, the recording / deleting control section 42 is controlled to prohibit copying of the audio signal instructed to be copied (step S103).

Alternatively, if the SCMS information confirmed in the discrimination process of step S102 indicates free copy permission, the control section 50 determines that the music data instructed to be copied is MD 200 in this embodiment along with additional information. The content ID detected by the additional information detection unit 38, the SCMS information as the copy generation management information, and the number of allowed copies as the copy count management information are supplied to the additional information adding unit 39 so as to be copied to the additional information detection unit 38. In this case, the allowed number of copies is controlled by information indicating that music data is free copy and thus allowing music data to be copied freely.

On the other hand, if the SCMS information confirmed in the discrimination process of step S102 indicates the copy permission for the generation of one generation, the controller 50 manages the copy history information based on the content ID added or superimposed on the music data instructed to be copied. The copy history information of the memory 52 is searched (step S105), and it is checked whether copy history information having the same content ID is given (step S106).

If it is discriminated that the copy history information having the same content ID as the music data instructed to be copied in the discrimination process of step S106 is not given, the control section 50 determines the number of copies allowed in the copy history information management memory 52 and the like. Copy history information including the content ID of the music data instructed to be copied is made.

In this embodiment, if the audio signal instructed to be copied has as many copy generations as the generation allowance and does not have the allowable copy count added thereto, the control section 50 determines that the allowable copy count of the music data is 1 and permits copying. Note that you will create copy history information with a range of 1.

In the discrimination process of step S106, the copy history information is discriminated as having the same content ID as the music data instructed to be copied or the copy history information is created in the copy history information management memory 52 by the process in step S107. Thereafter, the control section 50 discriminates whether or not the number of copies allowed in the copy history information of the copy history information management memory 52 is greater than or equal to 1 (step S108).

If the number of copies allowed in the discrimination process of step S108 is discriminated to be 0, the control section 50 determines that as many copies as initially permitted for music data have already been completed and the process proceeds to step S103. Proceed to prohibit copying of music data.

If it is discriminated that the number of copies allowed in the discrimination process of step S108 is one or more, the controller 50 reduces the number of allowed copies of copy history information stored in the copy history information management memory 52 by one (step S109). .

Subsequently, the controller 50 indicates the content ID detected by the additional information detection unit 38, the copy prohibition indicating that the music data to be copied is copied to the MD 200 together with the additional information, SCMS information formed by the control unit 50, And the device ID for the MD device of the present embodiment stored in the ROM provided to the controller 50 to the additional information adding unit 39 (step S110).

In this manner, the recording apparatus or the recording and reproducing apparatus which executes copying of the music data according to the present embodiment manages the allowed number of copies of the music data, and when the music has been completed for the number of times initially allowed for the music data, the music is completed. Prohibit copying of data. As a result, the rights of the copyright owner of the music data can be adequately protected without reducing the convenience for the user of the music data.

Now, the process of deleting the music data recorded in the MD executed by the MD apparatus of this embodiment is described. 7 is a flowchart for explaining a process of deleting music data recorded in the MD by the MD device of the present embodiment.

The MD device of this embodiment is configured to delete all of the music data recorded in the MD 200 mounted on the MD device, or to delete a part of the music data, for example, the designated music data. When such a delete instruction is input by the user via the key operating unit 51, the controller 50 performs the processing described in FIG.

When an instruction to delete the music data recorded in the MD 200 is input by the user, the controller 50 reads the content ID and the device ID of the designated music data from the MD 200, and based on the read content ID, The copy content information in the copy history information management memory 52 is searched for (step S201).

Subsequently, the controller 50 discriminates whether or not copy history information of music data that the user wants to delete is given (step S202). If the control section 50 discriminates that the copy history information of the target music data is given in the discrimination process of step S202, the control section 50 determines from the device ID of the MD device where the music data is to be deleted and the MD 200. The read device IDs are compared with each other (step S203), and whether they match each other is discriminated (step S204).

If the device ID read out from the MD 200 and the device ID of the MD device are distinguished from each other in the distinguishing process of step S204, the music data instructed to be deleted by the user is sent to the MD 200 by the MD device. Since it is copied, the controller 50 increases the number of allowed copies of the copy history information of the music data instructed to be deleted by the user by one (step S205), and the music data, that is, the content information instructed to be deleted by the user, is increased. It deletes from the MD 200 (step S206).

On the other hand, the control section 50 discriminates that the copy history information corresponding to the music data instructed to be deleted by the user in the discrimination process of step S202 is not given to the copy history information management memory 52, or step S204. If the control unit 50 discriminates that the device ID added to the music data instructed to be deleted by the user in the discrimination process of the control unit and the device ID of the MD device to delete the music data do not coincide with each other, the control unit 50 The music data instructed to be deleted by the user without updating the allowable copy count of the copy history information is simply controlled to be deleted from the MD 200 (step S200).

If the device deletes the music data copied to the recording medium by the device as described above, the control section 50 controls the allowable copy count of the copy history information recorded in the copy history information management memory 52 to be increased by one. do. As a result, for example, even if copying has been performed for the number of times initially allowed for the audio signal to be deleted, copying as much as the number of times recorded on the original CD 100S from which the audio signal is deleted is further allowed.

As described above in this case, the allowable copy number of the audio signal is copied to a recording medium such as MDs and corresponds to the number of audio signals given thereto. Therefore, when the copied music data is deleted and consequently the allowed number of copies of the copy history information is increased, copying of the music data is allowed to be executed by the number corresponding to the increased value. As a result, the copying operation is controlled so that the rights of the copyright owner of the music data can be adequately protected without reducing the convenience for the user of the music data.

On the other hand, if the user enters an instruction to delete music data not copied by the device itself, the user is notified that an instruction to delete music data not copied by the MD device itself has been inputted, and the user is asked to confirm input. A warning message is displayed on the liquid crystal display (LCD) unit provided in the MD device or the warning light emitting diode (LED) provided in the MD device blinks. By providing a warning to the user in this manner, it is possible to inform the user to delete the audio signal which is instructed to be deleted using the copied device.

In the above-described embodiment, the content information to be copied is an audio signal such as music data, but this content information is not limited to the audio signal, and the present invention also applies to the case where the video signal or computer data controlled to be communicated between computers is copied. It should be noted that this may apply.

For example, when the content information is a video signal, the generation restriction for the video signal copy can be executed by adding CGMS information, which is copy generation management information, as described above. If the content ID and copy count management information are added in addition to the CGMS information, it is possible to control the copy and manage the copy count based on the copy count similarly to the system for copying the music data described above.

The copy generation management information is not always necessary regardless of what information signal the content information is. Specifically, when the content ID in which the content information can be identified and the copy count management information are added to the content information in a corresponding relationship, the recording device or the recording and reproducing device manages the copy count based on the content ID and the copy count management information. In addition, it is possible to appropriately perform the control when copying content information according to the number of managed copies.

Further, in the above-described embodiment, an audio signal such as music data is provided recorded on the CD as content information, but the present invention is not limited thereto. The present invention can be applied to a case in which content information is provided through direct broadcasting or terrestrial broadcasting, or through various broadcasting media providing various broadcasting programs by cable, or in another case where various content information is provided through a network such as the Internet. Can be.

In this case, the output device for content information that provides the content information through direct broadcasting or terrestrial broadcasting, or through a network such as a cable or the Internet may include content ID, copy generation management information, copy count management information, and the like. It should be configured to add. Therefore, the output device for the content information can be configured by replacing the recording processing unit 9 described above with reference to FIG. 1 with an output processing unit that forms an output signal.

In this case, the output device for the content information can be applied not only to the broadcast device but also to various kinds of output devices for outputting the content information to an information device such as a personal computer having a communication function.

When content information is provided via broadcast, terrestrial broadcast, or cable, a receiver such as a set top box that receives the target broadcast signal, processes the broadcast signal into a usable form, and outputs the signal. Corresponds to a playback device such as the CD player described above.

Further, in the above-described embodiment, the recording medium on which the audio signal is recorded as the content information is an MD (mini disc), but the recording medium is not limited thereto. For example, the recording medium on which the content information is recorded may be a solid-state memory composed of semiconductors, or may be a hard disk which is not limited to removable media or installed in the apparatus.

In addition, optical discs such as DVD (Digital Video Disc) or CD-R (Compact Disc Recordable), magnetic-optical discs, magnetic discs, or magnetic tapes such as video tapes or cassette tapes can be used as various recording media.

Thus, the recording apparatus is not limited to the MD apparatus, and the recording apparatus according to the present invention is, for example, a recording apparatus or recording and reproducing apparatus for various optical disks, a recording apparatus or a recording and reproducing apparatus for a magneto-optical disk, Recording or recording and reproducing apparatus for various magnetic disks, video tape recorders, digital video tape recorders, digital audio tape recorders called audio tape recorders or DATs, and supplied content information to receive and convert the content information to various recording media It can be applied to various recording devices or recording and reproducing devices such as a personal computer for recording on.

Note that when the recording medium to which the content information is copied is a CD-R, an ID called RID (Recorder ID) can be used as the device ID.

Further, in the above-described embodiment, spread spectrum technology is used to form digital watermark information, copy generation management information, and copy count management information of content ID superimposed on the content information. However, the formation of the digital watermark information is not limited to using the spread spectrum technique, and various electronic watermark techniques such as time masking or frequency masking are used to form the electronic watermark information superimposed on the content information. It is possible. In this case, the WM decoding unit according to the digital watermark technology used to form the digital watermark information is used.

Further, in the above-described embodiment, when copying the content information, the controller or the like may control the device ID to be superimposed with the digital watermark information on the information signal to be copied. In this case, the controller or the like may control to detect the device ID in the form of digital watermark information when deleting the copied content information.

Moreover, in the above-described embodiment, the allowable copy count of the CD made from the CD produced by the authoring apparatus and provided to the user is not rewritten. However, the allowed copy count can be rewritten every time copy is executed to manage the allowed copy count of the content information recorded on the medium.

In this case, even if the content information recorded on the recording medium is distinguished as being content information allowing copying of the first generation, by referring to the number of allowed copies recorded on the recording medium, if the content information has already been copied as many times as allowed, Since the copy count is set to zero, for example, copying of the content information can be prohibited to properly protect the rights of the copyright holder.

Allowed copy counts, which are copy count management information, are provided in addition to various content information such as audio signals, video signals, or computer data, and the recording device or recording and reproducing device that executes copying of the content information allows the number of copies allowed. If managed, the management of the allowed copy number can be executed in addition to the conventional copy generation management based on the SCMS information or the CGMS information. As a result, the problem of conventional copy generation management, in which the content information of the first generation generation can be copied many times, can be eliminated.

In addition, since the management of the copy number and the conventional copy generation management system such as SCMS or CGMS can be used in common, more fine copy control can be made.

On the other hand, if the content information does not have copy count management information, if copying is prohibited or if content information other than free content information is treated as content information that can be copied only once, the allowed number of copies is also allowed to exist in a conventionally existing medium. Can also be managed. As a result, the rights of the copyright owner of the music data can be adequately protected without reducing the convenience for the user of the music data.

Also, since the content ID or the number of allowed copies remains in the recording history information management memory of the recording apparatus or the recording apparatus, this can be used, for example, to search for the contents information copied in the apparatus.

On the other hand, when the content information copied to the recording medium is deleted by the user, the number of allowed copies is increased by the same number of times as this number of deletions. As a result, although the personal use of the content information by which the user temporarily copies the content information to the recording medium and uses the content information copied using a car stereo device or a portable playback machine, can be carried out similarly as in the prior art, It is possible to prohibit illegal copying, such as making and selling a large number of copies.

In addition, since the device ID that can designate the device that performed the copy to the recording medium is recorded, the device that performed the copy can be designated.

In addition, since the recording apparatus manages copy history information, a conventionally existing reproduction apparatus or the like can be used as it is. For example, a compact disc (CD) has an ISRC code already added and the recording device controls the ISRC code to be output as a content ID via a digital interface (IEC 958), so that the copying device uses the ISRC code to You can identify information and manage the number of copies allowed for this content information.

Furthermore, when content ID, copy generation management information, and copy count management information are added to the content information as electronic watermark information as described above, even if a conventional playback device or the like is used in the analog connection, the allowable copy count of the content information is allowed. Can be managed.

In addition, since only the allowable number of copies needs to be managed for content information that is allowed for copy generation only, generation of a recording device so that copy history information for copy prohibition or free content information is not left in the copy history information management memory. If the control is performed, the copy history information management memory of the recording apparatus or the recording and reproducing apparatus which copies the content information can be effectively used.

It should be noted that the copy history information management memory may be, for example, a memory that can be removably installed in the recording apparatus or the recording and reproducing apparatus. This provides the advantage that the copy history information can be managed in a centralized form even if the user uses multiple recording devices and / or recording and reproducing devices.

Second embodiment

In the following, a second preferred embodiment of the present invention is described.

"Overview of Information Signal Copy Control Methods"

First, an overview of the information signal copy control method and the information signal reproduction control method used in the present invention will be described. The information signal copy control method of the present embodiment is designed such that the information medium used is designed to record any information signal, but the device used to carry out the copy is designed to record any information signal, and either normal speed copy or high speed copy is used. The copy control method to be used for copying the information signal is selected in consideration of whether it is used for copying the information signal.

In the next embodiment of the present invention, the content information means an audio signal, a video signal, etc., including copyright, etc., such as software for enjoying music or a movie, in principle evaluated on its own content, and the information signal means content information. It should be noted that it means a variety of information, such as computer data including.

On the other hand, as the recording medium used, an audio / video recording medium on which one or both of an audio signal and a video signal are recorded, and a general data recording medium on which various information signals such as computer data can be recorded can be used.

In addition, the recording apparatus used can perform various information processing such as audio / video-only apparatus, which is an apparatus exclusively used for recording and / or playing back audio signals and / or video signals, reproduction and editing of information signals, An audio / video universal device having an audio / video interface, which is a general-purpose device such as a computer configured to record supplied audio signals and / or video signals on a recording medium, and general-purpose data such as supplied computer data to the recording medium. General purpose devices for general purpose data with general purpose interfaces configured for writing are available.

For example, when time serial data such as an audio signal or a video signal that changes over time is to be recorded on the recording medium, some apparatus for recording the information signal to the recording medium may for example be in response to an instruction from a user or the information. In response to the type of recording medium on which the signal should be recorded, a normal speed copy in which the information signal reproduced at the standard playback speed is recorded at the same speed as the standard playback speed, or a high speed copy in which the information signal is copied at a higher speed than the normal speed copy You can choose. The high speed copying can be made by executing a process from the reading process of the information signal by the playback apparatus to the recording process of the information signal by the recording apparatus in a synchronized relationship with the other at an elevated speed.

In this manner, each of the recording medium, the recording apparatus, and the recording speed is not limited to one kind but includes at least two kinds. Therefore, the copy control method used for copying the information signal is selected in response to the recording medium, the recording apparatus, and the recording speed as described above. As a result, although copying within the scope of personal use where a user copies content information to enjoy the content information itself is permitted, for example, an unauthorized person may make multiple copies of the content information for the purpose of benefiting from it. Such illegal copying is reliably prevented, thereby ensuring the rights and interests of the copyright owner of the content information from which these target copies are made.

It should be noted that this embodiment will be described below by taking, as an example, the case where music data recorded on a recording medium such as a CD and provided to a user is reproduced and supplied to the recording apparatus as content information, thereby being copied to the recording medium. do.

In this case, each piece of music data recorded and provided on the recording medium has SCMS information added thereto to allow generation restriction control of the above-described SCMS method, and contents for identification of music data such as an International Standard Recording Code (ISRC). It has ID as added identification information.

In addition, the present embodiment uses the above-described SCMS method as the selected copy control method, and another method called uni-copy system (UCS) in the description of the second embodiment and using stricter copy restriction than the SCMS method.

According to the UCS method, the content ID of the music data copied to the recording medium is stored in the memory of the recording apparatus, and copying of the music data having the same content ID as the content ID stored in the memory is prohibited. As a result, the same recording device allows only one copy of each music data.

Further, in the present embodiment, when the recording apparatus recognizes that proper copying control of the information signal cannot be executed according to any of the SCMS method and the USC method, the recording apparatus is controlled to prohibit copying of the music data. In other words, controlling the recording apparatus to prohibit copying of content information from the beginning is one of the copy control methods.

Fig. 8 illustrates an information signal copy control method of the present embodiment, in which a recording medium, a recording device, a copy speed such as a normal speed copy used for copying or a copy speed for fast copying, and a copy depending on such information in coordinate relations The control method is shown.

Referring to Fig. 8, when an audio / video-only apparatus is used, the copy generation limit control of the SCMS method is added to the music data when it is used to perform normal speed copying of the music data as content information to the audio / video recording medium. Is executed using the generated SCMS information. This combination of the recording medium, the recording apparatus, and the recording speed is the same as in the case of the normal copying performed at home and the like, and since the content information is copied at the normal speed copying, many copies cannot be produced in a short time. Therefore, copy control is executed using copy generation limit control of the SCMS method.

When an audio / video-only apparatus is used to perform high speed copying of content information for an audio / video recording medium, copy control of the UCS method is executed. In this case, since a large number of copies can be produced in a short time by high-speed copying, copy control is executed in accordance with the UCS method, which uses a more stringent copy limit than the SCMS method.

When an audio / video-only apparatus is used to copy content information onto a general-purpose recording medium, copying of content information is prohibited. In particular, if content information such as an audio signal or a video signal is copied to the general-purpose recording medium, the copied content information is not limited by the general-purpose apparatus and may be freely copied into the general-purpose data. Therefore, copying of the content information itself is prohibited and impossible.

On the other hand, when an audio / video general purpose device provided with an audio / video interface is used, a stricter copy limit is used than the copy generation limit control of the SCMS method when used to perform normal speed copying of content information to an audio / video recording medium. Copy control of the UCS method is performed.

The reason why copy control of the UCS method is used even when normal speed copying is performed is that, for example, a general purpose device such as a computer allows simple high speed copying from its characteristics and distributes content information to many other general purpose devices, This is because the copy contents information distributed through a network such as the Internet can be received, and thus, the illegal copy company is likely to be executed.

When the audio / video general purpose apparatus is used to perform high speed copying of content information to an audio / video recording medium, copy control of the UCS method is executed. Also, in this case, as described above, since a large number of copies are likely to be produced within a short time, copy control of the UCS method using a stricter copy limit than the SCMS method is executed.

When the audio / video general purpose apparatus is used to copy the content information onto the general data recording medium, copying of the content information is prohibited. This is because in such a case, if content information such as an audio signal or a video signal is copied to the general-purpose data recording medium, there is a possibility that the copied content information is freely copied without being limited as described above.

On the other hand, when a general purpose apparatus for general purpose data provided with a universal interface is used, when used to copy information to an audio / video recording medium, as can be seen in FIG. 8, the copying of the information signal is a normal speed copy or a high speed copy. Regardless, it is prohibited. The reason is that the general purpose device for general purpose data can copy content information such as an audio signal or a video signal which is prohibited to copy to the audio / video recording medium without providing a copy restriction.

As can be seen in FIG. 8, it should be noted that copy limit control is not guaranteed to be executed when a general purpose apparatus for general purpose data is used to record an information signal on a general purpose data recording medium. Since the general purpose device for general purpose data is a device for processing general purpose data, it sometimes does not execute copy limit control of the UCS method or copy generation limit control of the SCMS method that is executed on content information such as an audio signal.

However, as will be explained later, an audio / video-only device or an audio / video general purpose device is used so that content information such as an audio signal or a video signal recorded on a universal data recording medium is not reproduced by the general purpose device for universal data. The reproduction of the information signal recorded on the data recording medium is prohibited. Briefly, even if an audio signal or a video signal is recorded on the general-purpose data recording medium, it cannot be reproduced, thereby preventing illegal copying of the audio signal or the video signal.

In this manner, when there is a high possibility of illegal copying to be performed, such as when a large number of copies are likely to be produced in a short time, the recording device performs copying control of the UCS method using a relatively strict copying control, but the audio signal or video When content information such as signals can be copied without copying restrictions or when copying of content information is permitted, copying is prohibited to ensure the rights and benefits of the copyright owner of the content information.

On the other hand, if an audio / video-only device or an audio / video general purpose device is used and an audio / video recording medium is used as the recording medium, the content information is at least 1 unless copying of the content information instructed to be copied by the user is prohibited. Allowed to be copied once. As a result, copying of the content information is allowed within the user's personal use range, so that convenience for the user can be guaranteed.

"Audio / Video-Only Devices"

The audio / video-only apparatus of the second embodiment described above is now described.

9 is a block diagram showing the audio / video-only apparatus of the present embodiment. The audio / video-only apparatus of this embodiment is formed of a recording and reproducing apparatus having a recording function for recording music data, such as content information, on a recording medium, and a reproducing function for reproducing music data, which is content information recorded on a recording medium. .

Referring to Fig. 9, the audio / video-only apparatus of this embodiment includes a media interface (denoted as medium I / F in Fig. 9) 501, an authentication processing unit 502, a medium discrimination unit 503, and an input terminal ( 504, input interface (indicated by input I / F in FIG. 9) 505, data compression processing unit 506, encryption unit 507, recording control unit 508, recording unit 509, switching unit 510 SCMS information detection unit 511, content ID detection unit 512, another switching unit 513, decryption unit 514, data decompression processing unit 515, output interface (indicated as output I / F in FIG. ) 516, an output terminal 517, a reading unit 518, a reading control unit 519, a control unit 520, a key operation unit 521, and a copy history information management memory 522.

In addition, in the audio / video-only apparatus of the present embodiment, the recording medium 600 is a recording medium using a semiconductor memory or a small magneto optical disk called a mini disc (MD), a magnetic disk such as a hard disk, or the like as a data storage area. Can be used. In this case, the higher speed processing can be made when the data is written to the semiconductor memory than when the data is written to the magneto-optical disc by the audio / video-only device.

Therefore, as will be described later, in the audio / video-only apparatus of this embodiment, high-speed copying can be performed on a recording medium in which a semiconductor memory is used as a storage area, while normal-speed copying is not performed on a recording medium in which an MD is used as a storage area. Is executed.

In addition, as described above, audio / video recording media and general-purpose data recording media are available as the recording medium 600. Therefore, the audio / video recording medium 600A and the universal data recording medium 600B used in this embodiment are described.

FIG. 10 shows an audio / video recording medium 600A, and FIG. 11 shows a universal data recording medium (hereinafter referred to as general purpose recording medium) 600B.

As can be seen in FIG. 10, the audio / video recording medium 600A of this embodiment includes a data storage area 601 formed from a disk or a semiconductor memory, a switch circuit 602, and an authentication processing unit 603. FIG. The authentication processing unit 603 communicates with another party apparatus equipped with the audio / video recording medium 600A, and forms an authentication permission with the other party apparatus.

Specifically, the authentication processing unit 603 discriminates whether or not another party device can access the data storage area 601, and when the other party device is discriminated as being able to access the data storage area 601, the other party device. Authenticate Then, when another party apparatus is authenticated, the authentication processing unit 603 exchanges the switch circuit 602 to enable access to the data storage area 601. On the other hand, when the authentication processing unit 603 does not recognize another party device, the authentication processing unit 603 does not exchange the switch circuit 602. As a result, other party devices do not have access to the data storage area 601.

Since the audio / video recording medium 600A includes an authentication processing unit 603, only an authorized device is allowed, thereby writing data into the data storage area 601 or reading data from the data storage area 601. FIG.

As can be seen in FIG. 11, the general-purpose recording medium 600B of this embodiment includes a data storage area 601, but the switch circuit 602 or the authentication processing unit 603 as in the audio / video recording medium 600A. ) Is not included. Thus, the general purpose recording medium 600B allows various general purpose data to be recorded in the data storage area 601 or allow data stored in the data storage area 601 to be read by various devices without interference of the authentication process.

In this way, in this embodiment, the audio / video recording medium 600A shown in FIG. 10 and the general purpose recording medium 600B shown in FIG. 11 are available as the recording medium 600.

Referring again to FIG. 9, the audio / video-only apparatus includes an authentication processing unit 502 to distinguish whether the mounted recording medium is the audio / video recording medium 600A or the general purpose recording medium 600B.

The audio / video-only device is also a recording medium in which a semiconductor memory allowing high speed copy is used as the data storage area 601 or another magneto-optical disk used as a data storage area 601 which allows only normal speed copying. A medium discriminating unit 503 is included to distinguish whether or not it is a recording medium.

Specifically, when the recording medium is mounted with the audio / video-only apparatus of the present embodiment shown in Fig. 9, the control unit 520 controls the media interface 501 and the authentication processing unit 502 to authenticate the mounted recording medium first. do. Subsequently, if the control unit 520 has successfully authenticated the mounted recording medium, the medium interface 501 and the medium discriminating unit 503 are set so as to distinguish whether or not the mounted recording medium is a recording medium that allows fast copying. To control.

Specifically, the authentication processing unit 502 communicates with the authentication processing unit 603 of the recording medium and executes a process of authenticating the recording medium via the medium interface 501. In this case, if the recording medium mounted on the audio / video-only apparatus is a general-purpose recording medium 600B that does not include the authentication processing unit 603, between the general-purpose recording medium 600B and the audio / video-only apparatus of this embodiment. Since authentication cannot be made, the authentication processing unit 502 of the audio / video-only device notifies the control unit 520 that authentication has not been performed. When authentication cannot be performed in this manner, the control unit 520 can determine that the mounted recording medium is a general-purpose recording medium 600B that does not include the authentication processing unit 603.

When the mounted recording medium is the general-purpose recording medium 600B, the control unit 520 controls the recording control unit 508 to prohibit data recording to the recording medium. In this manner, the audio / video-only apparatus of this embodiment is controlled so that music data that is content information cannot be copied to the general-purpose recording medium 600B.

In addition, when the mounted recording medium is the general-purpose recording medium 600B, the control unit 520 read-out the control unit 519 to prohibit reading of data recorded on the general-purpose recording medium 600B mounted in the audio / video-only apparatus. ). As a result, the audio / video-only apparatus of this embodiment is also controlled such that data recorded on the general-purpose recording medium 600B cannot be reproduced.

On the other hand, if the recording medium of the other party is the audio / video recording medium 600A including the authentication processing unit 603, authentication is performed between the audio / video-only device and the audio / video recording medium 600A of the other party. The authentication processing unit 502 notifies the control unit 520 that authentication has been performed. When authentication is performed in this manner, the controller 520 may determine that the mounted recording medium is the audio / video recording medium 600 including the authentication processing unit 603.

Further, when authentication is made, the authentication processing unit 603 of the audio / video recording medium 600A may switch the switch circuit 602 as described above so that the audio / video-only device can access the data storage area 601. Replace it.

In this case, the medium discriminating unit 503 obtains information indicating the type of the medium recorded on the recording medium mounted through the medium interface 501, for example, and the recording medium is magneto-optical to the data storage area 601. It is discriminated whether it is a recording medium using a disk or a recording medium using a semiconductor memory, and the control unit 520 is notified of the discrimination result.

In the audio / video-only apparatus of the present embodiment, as described above, a storage medium in which a magneto-optical disk is used as the data storage area 601 allows only normal speed copying, but the semiconductor memory is transferred to the data storage area 601. Another recording medium used allows high speed copying.

Therefore, when the recorded recording medium is found to be a recording medium using a magneto-optical disk as the data storage area 601 in the result of the discrimination from the medium discriminating unit 503, the control unit 520 controls the copy control of the SCMS method. For this purpose, a control signal for exchanging the switching unit 510 to the SCMS information detection unit 511 is formed, and the control signal is supplied to the switching unit 510.

On the other hand, when it appears that the mounted recording medium is a recording medium using a semiconductor memory as the data storage area 601 in the result of the discrimination from the medium discriminating unit 503, the control unit 520 performs copy control of the UCS method. To this end, a control signal for exchanging the switching unit 510 to the content ID detection unit 512 is formed, and the control signal is supplied to the switching unit 510.

As a result, as described above with reference to Fig. 8, when the music data as the content information is copied to the audio / video recording medium 600A with normal speed copying, the audio / video-only device is sent to the SCMS information detection unit 511. Copy control of the SCMS method is executed using the SCMS information detected by the method. On the other hand, when the music data as the content information is copied to the audio / video recording medium using the semiconductor memory as the data storage area 601 by high speed copying to allow high speed copying, the audio / video-only apparatus is provided with the content ID detecting unit 512. The copy control of the UCS method is performed using the content ID detected by.

In the audio / video-only device of this embodiment, the control unit 520 receives a clock signal for playback processing through the input interface 505 and the input terminal 504 together with the audio signal from the playback device for the CD which is the audio signal playback device. It should be noted that it is configured to receive and detect whether normal speed copying or fast copying should be performed based on information from the input interface 505. When fast copying is to be performed, the control unit 520 controls the components of the recording system to perform fast copying.

The audio signal reproduced by the reproducing apparatus for the CD and input through the input terminal 504 of the audio / video-only apparatus of the present embodiment shown in FIG. 9 is transferred through the input interface 505 and the data compression processing unit 506 and the switching. Supplied to the unit 510.

The data compression processing unit 506 compresses the audio signal supplied thereto by a predetermined method, and supplies the compressed audio signal to the encryption unit 507. The encryption unit 507 encrypts the compressed audio signal according to a predetermined encryption method, and supplies the resulting audio signal to the input terminal side of the switching unit 513 and the recording control unit 508.

On the other hand, when the recording medium 600 is an audio / video recording medium 600A using a magneto-optical disc as the data storage area 601, the switching unit 510 is exchanged to the SCMS information detection unit 511 side, but the data When high-speed copying to the audio / video recording medium 600A in which the semiconductor memory is used as the storage area 601 is to be performed, the switching unit 510 is switched to the content ID detection unit 512 side.

As a result, when the switching unit 510 is exchanged to the SCMS information detecting unit 511 side, the audio signal from the input interface 505 is supplied to the SCMS information detecting unit 511 via the switching unit 510. The SCMS information detector 511 detects SCMS information added to the supplied audio signal and supplies the detected SCMS information to the controller 520.

In this case, the controller 520 analyzes the supplied SCMS information and distinguishes the copy control state of the supplied audio signal. Specifically, the control unit 520 distinguishes whether copying is prohibited for the supplied audio signal, or copying of generation 1 is allowed, or copying is freely allowed. On the other hand, if the control unit 520 does not detect the SCMS information from the supplied audio signal, it is determined that copying of the music data is freely allowed in the present embodiment. Alternatively, however, when SCMS information is not detected from the supplied audio signal, the controller 520 may control copying of the audio signal to be prohibited.

Subsequently, the control unit 520 forms a control signal for controlling the recording control unit 508 based on the copy control state of the audio signal instructed to be copied by the user distinguished from the analysis result of the SCMS information, and the control signal is converted into the control signal. Supply to recording control unit 508.

Specifically, when the copy control state of the audio signal instructed to be copied by the user indicates copy prohibition, the control unit 520 forms a control signal for inhibiting copying, and supplies the control signal to the recording control unit 508. . However, when the copy control state of the audio signal instructed to be copied by the user is allow of free copying, the control unit 520 forms a control signal for allowing free copying, and supplies the control signal to the recording control unit 508. do.

On the other hand, when the copy control state of the audio signal instructed to be copied by the user indicates the copy permission of generation 1 generation, the control unit 520 allows the copy and the control signal for changing the added SCMS information to copy prohibition information. And the control signal is supplied to the recording control unit 508.

The recording control unit 508 supplies only the audio signal to which the copy is allowed based on the control signal from the control unit 520 to the recording unit 509. In this case, when the audio signal is a signal that allows generation of generation 1 copying, the recording control section 508 of the present embodiment supplies the SCMS information to the recording section 509 after changing the SCMS information to indicate copy prohibition.

The recording unit 509 performs necessary processing such as adjusting the recording level of the audio signal to be recorded, and records the audio signal on the recording medium 600 via the medium interface 501. When recording in this manner, the media interface 501 is controlled by the controller 520 so that an audio signal is recorded on the recording medium 600.

Further, as described above, when the high speed copying of the audio signal to the audio / video recording medium 600A in which the semiconductor memory is used as the authentication processing unit 603 is executed, the switching unit 510 executes copy control of the UCS method. The content ID detection unit 512 is exchanged with each other. In this case, the audio signal from the input interface 505 is supplied to the content ID detection unit 512 through the switching unit 510.

The content ID detecting unit 512 detects a content ID for identifying an audio signal added to the supplied audio signal, and supplies the content ID to the control unit 520. In the copy history information management memory 522 connected to the control unit 520, the content ID of the audio signal copied by the audio / video-only device of this embodiment is stored.

Subsequently, the control unit 520 searches the copy history information management memory 522 based on the content ID from the history ID detection unit 512 to detect whether or not the same content ID is stored in the copy history information management memory 522. .

If the same content ID as the content ID from the content ID detection unit 512 is already stored in the copy history information management memory 522, the audio signal instructed to be copied by the user has already been recorded by the audio / video-only apparatus. Can be determined to have been copied to. In this case, since the same audio signal cannot be copied repeatedly, the control unit 520 forms a control signal for copy prohibition and supplies it to the recording control unit 508.

On the other hand, if the same content ID as the content ID from the content ID detection unit 512 is not stored in the copy history information management memory 522, the audio signal instructed to be copied by the user is still present in the audio / video-only apparatus. It can be determined that no enemy has been copied. In this case, the control unit 520 forms a control signal for allowing copying and supplies it to the recording control unit 508. The control unit 520 additionally stores the content ID from the content ID detection unit 512 in the copy history information management memory 522.

If copying is an audio signal that is allowed only once, it is copied to the recording medium 600 via the recording unit 509 and the media interface 501 as described above, but if the copying is an audio signal that is prohibited from copying, then the recording control unit 508 No audio signal is supplied to the recording unit 509, so that copying of the audio signal is not executed as a result.

When the audio signal is to be recorded to the audio / video recording medium 600A as described above, the switching unit 513 is switched to the input terminal side under the control of the control unit 520. As a result, the audio signal from the encryption unit 507 is supplied to the decryption unit 514 via the switching unit 513 and decrypted thereby. The decoded audio signal is supplied to the data decompression processing unit 515.

The data decompression processing unit 515 decompresses the audio signal in the form of compressed data to reproduce the audio signal in the form before the data compression. The audio signal thus reproduced is output through the output interface 516 and the output terminal 517. The audio signal output in this manner is supplied to, for example, a speaker or headphones so that the audio signal recorded on the audio / video recording medium 600A can be monitored by the user.

In this manner, the audio / video-only apparatus of this embodiment uses the SCMS method when the recording medium to copy the audio signal directed to be copied by the user is an audio / video recording medium using a magneto-optical disk as the data storage medium. It is configured to execute copy control, and to execute copy control of the UCS method when high-speed copying is performed on an audio / video recording medium using a semiconductor memory as a data storage medium.

Now, reproduction of the audio signal recorded on the recording medium mounted on the audio / video-only apparatus of this embodiment is described. Also in reproduction, reproduction control is executed in response to the recording medium on which the audio signal instructed to be reproduced by the user is recorded as described above.

Specifically, if a recording medium for which authentication cannot be made through the authentication processing unit 502 is mounted in the audio / video-only device of this embodiment, the audio / video-only device is instructed to be reproduced by the user as described above. Determines that the recorded recording medium is the general-purpose recording medium 600B.

In this case, the control unit 520 authenticates the audio signal read out from the general-purpose recording medium 600B through the medium interface 501 and the reading unit 518 from the reading control unit 519 so as to prohibit reproduction. The read control unit 519 is controlled based on the result of the discrimination from the "

As described above, when an audio signal is copied to a general-purpose recording medium through a general-purpose apparatus for general-purpose data, there is a possibility that the copied audio signal is copied without limitation. However, the audio / video-only device cannot be used to reproduce data recorded on the general-purpose recording medium as described above, so that the user can use the general-purpose device for the general-purpose data to provide content information such as an audio signal or a video signal on the general-purpose recording medium. The copying does not mean anything to the user, and as a result, illegal copying of content information copy prohibited by SCMS information or the like can be prevented.

On the other hand, if authentication is successfully performed between the audio / video-only apparatus and the recording medium mounted on the audio / video-only apparatus of this embodiment, the control unit 520 is mounted based on the notification from the authentication processing unit 502. It can be distinguished that the recording medium is an audio / video recording medium 600A.

In this case, the control unit 520 supplies the media interface 501 to supply the audio signal read from the recording medium to the input terminal b of the switching unit 513 through the medium interface 501 and the reading unit 518. The reading unit 519 is controlled. In this case, the control unit 520 exchanges the switching unit 513 to the input terminal b side.

As a result, the audio signal read out from the audio / video recording medium 600A is decoded by the decoding unit 514, the data decompression processing unit, so that the user can enjoy the sound reproduced from the audio signal read out from the audio / video recording medium 600A. 515, output interface 516, and output terminal 517 are supplied to the speaker or the headphones.

Note that when authentication is successful and the content information is reproduced from the recording medium, the decryption key is supplied from the authentication processing unit 603 to the control unit 520 via the authentication processing unit 502, and then to the decryption unit 514. shall. As a result, the encryption applied to the content information read from the recording medium by the audio / video-only apparatus is erased by the decryption unit 514 to decrypt the content information.

"Recording of Audio / Video-Only Devices"

The recording process for the audio / video-only apparatus of the present embodiment described above with reference to FIG. 9 will now be described with reference to the flowchart of FIG. Fig. 12 describes a processing procedure in which the audio / video-only apparatus of this embodiment records an audio signal such as music data on the recording medium as content information, for example.

When the recording medium is loaded into the audio / video-only apparatus of this embodiment, the control unit 520 attempts to authenticate with the recording medium through the medium interface 501 and the authentication processing unit 502 (step S301).

Subsequently, the control unit 520 discriminates whether authentication has been made (step S302). If authentication is not successful, the process described in FIG. 12 ends. In other words, if the mounted recording medium is a general-purpose recording medium 600B that does not include the authentication processing unit 603, no authentication is performed, and consequently, the mounted general-purpose recording medium 600B is mounted by an audio / video-only apparatus. The reproduction of the data recorded on the general-purpose recording medium 600B and the copy of the audio signal with respect to "

If the control unit 520 discriminates that authentication is successful in the discrimination process of step S302, the recording medium mounted on the audio / video-only apparatus of this embodiment includes an audio / video recording medium including an authentication processing unit 603. FIG. As 600A, copying of the audio signal is possible. In this case, the control unit 520 discriminates whether or not the recording medium loaded through the medium interface 501 and the medium discriminating unit 503 is a recording medium capable of executing high speed copying (step S303).

Specifically, the process of step S303 is carried out by mounting an audio / video recording medium 600A that allows high-speed copying using a semiconductor memory as the data storage area 601 or by placing a magneto-optical disc into the data storage area 601. Processing to discriminate whether or not an audio / video recording medium 600A that allows normal speed copying only is used. Here, the magneto-optical disk or the optical disk may allow for high speed copying.

Subsequently, the control unit 520 discriminates whether or not the audio / video recording medium 600A mounted in the audio / video-only apparatus is a recording medium that allows high-speed copying based on the result of the discrimination from the medium discriminating unit 503. (Step S304).

If the control unit 520 discriminates that the recording medium allowing high speed copy is mounted in the discrimination process of step S304 and the audio signal is copied by high speed copy, copy control of the UCS method is executed as described above. In particular, if the mounted recording medium allows high-speed copying as the audio / video recording medium and the reproduction clock signal supplied from the reproduction device for the audio signal is preparing for high-speed copying, as described above with reference to FIG. Since the 510 is exchanged to the content ID detection unit 512 side, the content ID of the audio signal instructed to be copied by the user is detected by the content ID detection unit 512 and supplied to the control unit 520 (step S305).

The control unit 520 compares the content ID from the content ID detection unit 512 with the content ID stored in the copy history information management memory 522, and finds the same ID as the content ID of the audio signal instructed to be copied by the user ( Step S306).

The control unit 520 discriminates whether or not the same ID as the content ID of the audio signal instructed to be copied by the user is given to the copy history information management memory 522 (step S307). If the control unit 520 discriminates that the same content ID is given to the copy history information management memory 522 in the distinguishing process of step S307, since the audio signal of the content ID has already been copied by the audio / video-only device, 520 controls the recording control unit 508 so that the target music data cannot be copied, thereby terminating the processing described in FIG.

On the other hand, if the control unit 520 discriminates that the same content ID is not given to the copy history information management memory 522 in the discrimination process of step S307, the high speed of the target audio signal for the audio / video recording medium 600A is obtained. The recording control unit 508, the recording unit 509, and the media interface 501 are controlled to execute the copy (step S308), and the content ID of the copied music data is updated to update the information in the copy history information management memory 522. The copy history information is recorded in the copy history information management memory 522 (step S309).

If the control unit 520 discriminates that the recording medium mounted on the audio / video-only apparatus is not a recording medium that allows high-speed copying in the discrimination process of step S304, the copy generation restriction control of the SCMS method is performed as described above. Is executed. Specifically, when the mounted recording medium allows only normal speed copying to the audio / video recording medium, the switching unit 510 is exchanged with the SCMS information detecting unit 511 as described above with reference to FIG. As a result, SCMS information added to the audio signal such as music data instructed to be copied by the user is detected by the SCMS information detection unit 511 and supplied to the control unit 520 (step S310).

Subsequently, the controller 520 analyzes the supplied SCMS information (step S311). The control unit 520 discriminates whether or not the music data instructed to be copied by the user is music data that can be copied and copied based on the result of discrimination of the SCMS information (step S312).

If the control unit 520 discriminates that the target music data cannot be copied because the copying of the target music data is prohibited in the discrimination process of step S312, the recording control unit 508 is controlled so that the target music data can be copied, This ends the processing described in FIG. 12.

If the control unit 520 discriminates that the target music data can be copied, such as when the SCMS information added to the target music data indicates that the generation generation copy is to be executed in the discrimination process of step S312, the control unit 520 Controls the recording control unit 508, recording unit 509, and media interface 501 to execute normal speed copying of the target music data to the recording medium (step S313).

When normal speed copying is executed in step S313 and the first generation copy is executed on the copied music data, the control unit 520 adds SCMS information indicating copy prohibition to be copied along with the information signal copied to the recording medium. Note the control box.

In this way, the audio / video-only apparatus of the present embodiment determines which information signal is designed to be recorded so that, for example, a recording medium is copied in which the audio signal such as music data is copied into the content information according to an instruction from the user. Distinguish If an audio / video recording medium on which an audio signal as content information can be recorded, the audio / video-only device is controlled such that copying of the audio signal can be performed, but when the recording medium is a general-purpose recording medium, the audio / video-only device is used. It is controlled to carry out copying of the audio signal.

When the audio / video-only device performs normal speed copying of an audio signal to an audio / video recording medium that allows only normal speed copying, the copy control of the SCMS method is executed, but the audio / video-only device is capable of fast copying. When performing high-speed copying of an allowable audio / video recording medium, copy control of the UCS method is executed, which uses a stricter copy limit than the SCMS method.

In addition, the audio / video-only apparatus is controlled such that copying of content information for a general-purpose recording medium that allows copying of the recording information signal to be performed without a copying restriction is made impossible. In addition, when the audio / video-only apparatus copies the audio signal several times within a short time to execute high-speed copying, in which a large number of recording media on which the audio signal has been copied can be produced, copy control of the UCS method is executed, thereby making it possible to make a large amount of copying. Fabrication is prevented. As a result, illegal copying of the content information damaging the benefit of the copyright owner of the music data can be prevented.

In particular, when normal speed copying of music data is performed on an audio / video recording medium, copy control by the conventional SCMS method is executed, but when high speed copying of music data is performed on an audio / video recording medium, copy control of the UCS method is performed. Is executed. As a result, the audio / video-only device allows the copy of the audio signal within the personal use range if the copy of the audio signal is allowed, and thus does not reduce the convenience for the user.

In the audio / video-only apparatus of this embodiment, it should be noted that the medium discriminating unit 503 discriminates whether or not high speed copying is possible for the recording medium based on the information recorded on the recording medium. However, this distinguishing method is not limited to this, and can be distinguished from each other by a mechanical method using a difference between a case shape in which a recording medium that allows fast copying and another recording medium that does not allow fast copying is accommodated.

Further, in the audio / video-only apparatus of this embodiment, whether or not normal speed copying or fast copying should be performed is a clock signal from a playback device which supplies an audio signal to the audio / video-only apparatus of this embodiment. And based on the attached recording medium. However, the determination method is not limited to this.

Whether or not normal speed copying should be performed or whether high speed copying should be carried out can be determined solely by whether a recording medium that allows fast copying is mounted, or in other ways depending on the clock signal supplied from the playback device of the audio signal. have.

In addition, switching between normal speed copy and fast copy may be performed in response to an initial input from the user to the audio / video-only device. In brief, the user may exchange between normal speed copying and high speed copying through a key operation unit 521 connected to the control unit 520.

In this case, it is not distinguished whether or not the recording medium allows fast copying, or whether fast copying should be performed based on the clock signal from the playback device for the audio signal, but it is not distinguished by the normal copying and fast copying by the user. Which of the copies is selected is distinguished.

When the content information is copied to the audio / video recording medium by the audio / video-only apparatus of this embodiment and normal speed copying is selected by the user, copy control of the SCMS method is executed to record the audio signal, but high speed copying is performed. When is selected, copy control of the UCS method is executed, which uses a more stringent copy limit than the SCMS method.

As a result, even when the recording speed is selected by the user, copy control can be executed according to an appropriate copy control method.

In addition, the audio / video-only apparatus of this embodiment is controlled so that the information signal recorded on the general-purpose recording medium 600B cannot be reproduced as described above. As a result, even if the information content is illegally copied to the general-purpose recording medium by the general-purpose device described later, the content information cannot be reproduced by the audio / video-only device. As a result, illegal copying of content information on the general-purpose recording medium can also be prevented.

"Audio / Video Universal Devices"

The audio / video general purpose apparatus of the present embodiment described above is now described. The audio / video general purpose apparatus of this embodiment can process audio signals and / or video signals, copy audio signals or video signals to a recording medium, reproduce audio signals or video signals recorded on a recording medium, and audio signals or A computer capable of performing various other processing such as production or editing of a video signal.

In the following description, the audio / video general purpose device is similar to the audio / video-only device described above, for example, in which an audio signal such as music data is recorded or reproduced from the recording medium as content information. It is explained by taking.

FIG. 13 is a block diagram showing an audio / video general purpose apparatus (AV-ready computer: AV stands for audio visual) of the present embodiment. Referring to Fig. 13, the audio / video general purpose apparatus of this embodiment is generally denoted by 700, and includes a central processing unit (CPU) 701, a RAM 702, a bus controller 703, an AV input / output board. 704, an AV-ready interface board (audio / video interface) 705, another bus controller 706, and a hard disk device portion 707 connected to each other by an internal bus 708. ).

The CPU 701 controls the components of the audio / video general purpose device 700. The RAM 720 is a nonvolatile memory and is used as a work area for various processing executed by the CPU 701 and as a copy history information management memory that stores copy history information when copy control is executed according to the UCS method. Briefly, the storage area of the RAM 702 is divided into a plurality of partitions including, for example, an area used as a work area and another area for storing copy history information when copy control is executed according to the UCS method. .

The bus controller 703 controls the input / output of data between the CPU 701 or the RAM 702 and the internal bus 708. The AV input / output board 704 allows input / output at various reproducing apparatuses or recording and reproducing apparatuses, for example, to a recording medium on which audio signals and / or video signals are recorded, such as a CD-ROM driver. The bus controller 706 of this embodiment controls data input / output between the hard disk device unit 707 and the internal bus 708.

The AV-ready interface board 705 records, on the recording medium, an audio signal which is content information read from the CD-ROM, for example, by a CD-ROM driver connected via the above-described AV input / output board 704, or For example, it is provided to read an audio signal such as music data from a recording medium and reproduce the audio signal.

The AV-ready interface board 705 includes a switch circuit 801 and an authentication processing unit 802 as shown in FIG. The authentication processing unit 802 communicates with a recording medium connected to the AV-ready interface board 705 so as to authenticate with the recording medium.

In this case, when the recording medium connected to the AV-ready interface board 705 is an audio / video recording medium 600A having the authentication processing unit 603 described above with reference to FIG. Authentication is performed between the authentication processing unit 802 and the authentication processing unit 603 of the audio / video recording medium 600A.

The authentication processing unit 802 of the AV-ready interface board 705 turns on the switch circuit 801 when the recording medium connected to the AV-ready interface board 705 is successfully authenticated as the audio / video recording medium 600A. Control by state. On the other hand, in the audio / video recording medium 600A, if the other party device is an audio / video general purpose device including the authentication processing unit or the above-described audio / video-only device, authentication with another party device can be performed. The processing unit 603 exchanges the switch circuit 603.

As a result, the audio / video general purpose apparatus 700 is controlled to access the data storage area 601 of the audio / video recording medium 600A via the AV-ready interface interface board 705.

On the other hand, for example, an output signal read by a reproducing apparatus or a recording and reproducing apparatus for a recording medium such as a CD-ROM connected to the audio / video general purpose apparatus 700 of the present embodiment may cause the AV input / output board 704 to be used. When recorded to the audio / video recording medium 600A connected to the AV-ready interface board 705 via, the audio / video general purpose apparatus of this embodiment executes copy control according to the UCS method.

The audio / video general purpose apparatus of this embodiment is configured to be capable of selecting normal speed copy or high speed copy by a switching operation by a user, for example, similar to the audio / video-only device described above. However, in the audio / video general purpose apparatus, when copying to the audio / video recording medium is executed, copy control of the UCS method is executed even if one of normal speed copying and fast copying is selected.

A general purpose device, such as the audio / video general purpose device 700, may, from its characteristics, copy an audio signal, for example music data, to a number of recording media in equally short time and distribute the audio signal as content information over a network such as the Internet, or Or to receive a distributed audio signal and record it on a recording medium.

However, since copying of the audio signal to the recording medium is carried out via the AV-ready interface board 705 by the copying control of the UCS method described above, illegal copying which impairs the gain of the copyright holder of the audio signal can be prevented.

On the other hand, when the recording medium connected to the AV-ready interface board 705 is a general-purpose recording medium 600B that does not include the authentication processing unit 603, between the audio / video general-purpose apparatus 700 and the general-purpose recording medium 600B. No authentication can be made.

In this case, since the switch circuit 801 is not exchanged by the authentication processing unit 802 of the AV-ready interface board 705, the audio / video general purpose apparatus 700 uses the audio signal as the content information. Controlled not to copy to.

In this manner, the audio / video general-purpose apparatus 700 is controlled such that an audio signal cannot be copied to the general-purpose recording medium 600B, so that the audio signal copied to the general-purpose recording medium 600B is processed as general-purpose data so that copy control is performed. The inconvenience of not being made and copying continuously freely can be prevented.

In addition, the audio / video general purpose apparatus of this embodiment is controlled such that the information signal recorded on the general-purpose recording medium 600B cannot be reproduced similarly to the audio / video-only apparatus described above. This is because the switch circuit 801 is not exchanged because the authentication processing unit 802 does not authenticate. As a result, for example, even if the content information is illegally copied to the universal recording medium by the general purpose device to be described later, the content information cannot be reproduced by the audio / video general purpose device, so that the content information on the general purpose recording medium is illegal. Copying can be prevented.

"Processing of a Proxy Audio / Video Universal Device"

The recording process of the audio / video general purpose apparatus of the present embodiment described above with reference to FIG. 13 will now be described with reference to the flowchart of FIG. Fig. 14 describes a processing procedure when an audio signal as content information is recorded on a recording medium by the audio / video general purpose apparatus of this embodiment.

When the recording medium is connected to the AV-ready interface board 705 of the audio / video general purpose apparatus of this embodiment, the authentication processing unit 802 of the AV-ready interface board 705 authenticates with the recording medium (step S401). .

The CPU 701 then discriminates whether or not the AV-ready interface board 705 has successfully authenticated (step S402). If the CPU 701 distinguishes that authentication has not been successful, the processing described in FIG. 14 ends. In particular, if the mounted recording medium is a general-purpose recording medium that does not include the authentication processing unit 603, since authentication cannot be performed, the CPU 701 copies the audio signal to the mounted universal recording medium and attaches it to the mounted general-purpose recording medium. The audio / video general purpose device is controlled such that reproduction of the recorded data cannot be performed by the audio / video general purpose device.

If the CPU 701 discriminates that authentication is successful in the discrimination process of step S402, the switch circuit 801 is exchanged by the authentication processing unit 802. FIG. As a result, the CPU 701 controls the related components so that the audio signal supplied through the AV input / output board can be recorded on the recording medium connected to the AV-ready interface board 705. Thus, the audio / video general purpose apparatus 700 of this embodiment performs copy control of the UCS method described with reference to FIG.

Specifically, the CPU 701 detects the content ID from the audio signal input through the AV input / output board 704 (step S403). Then, the CPU 701 compares the detected content ID with the content ID stored in the copy history information management area of the RAM 702 to find a content ID that is the same as the content ID of the audio signal directed to be copied by the user. (Step S404).

The CPU 701 discriminates whether or not the same content ID as the content ID of the audio signal instructed to be copied by the user is given to the copy history information management area of the RAM 702 (step S405). If the CPU 701 distinguishes that the same content ID is given in the discrimination process of step S405, this means that the audio signal of the content ID has already been copied by the audio / video general purpose apparatus 700, and the CPU 701 The AV-ready interface board 705 is controlled to prohibit copying of the target audio signal, thereby terminating the processing described in FIG.

On the contrary, if the CPU 701 discriminates that the same content ID is not given to the copy history information management area of the RAM 702 in the discrimination process of step S405, then the CPU 701 targets the audio / video recording medium. The AV-ready interface board 705 is controlled to copy the audio signal (step S406), and the content ID of the copied audio signal is recorded as copy history management information in the copy history information management area of the RAM 702 for copying. The information in the history information management area is updated (step S407).

In this manner, the audio / video general-purpose apparatus of this embodiment determines which information signal is recorded to discriminate the recording medium to which the audio signal as the content information is copied in accordance with an instruction from the user, and to record the audio signal as the content information. In the case of an audio / video recording medium, audio signals can be copied, but in the case of a general-purpose recording medium, audio signals cannot be copied.

In addition, when an audio signal is copied to an audio / video recording medium, the audio / video general purpose apparatus performs copy control of the UCS method using more stringent copy control than the SCMS method, regardless of normal speed copy or fast copy.

As a result, the audio / video general-purpose apparatus of this embodiment is controlled so that copying of content information for the general-purpose recording medium with high possibility that the copied information signal is copied without copying control is applied. In addition, since the audio / video general purpose apparatus executes copy control of the UCS method when copying the audio signal, illegal copying of the audio signal damaging the gain of the copyright owner of the audio signal can be prevented.

Further, although the audio / video general purpose apparatus of this embodiment performs copy control of the UCS method when copying the audio signal to the audio / video recording medium, it can be copied at least once to the audio / video recording medium, so that the audio signal The ease for the user does not decrease much.

"Universal device"

Now, the general purpose apparatus of this embodiment described above is described. Fig. 15 is a block diagram showing the general purpose device of this embodiment. The general purpose apparatus of the present embodiment is a computer capable of executing various processings on information signals such as computer data and of performing various information processing such as production, correction, deletion, and storage of information signals. It is constructed in a similar way.

Referring to FIG. 15, the general purpose device of this embodiment is generally designated 900, and similar to the audio / video general purpose device 700 described above with reference to FIG. 13, the CPU 701, the RAM 702, A bus controller 703, an AV input / output board 704, a bus controller 706, and a hard disk device section 707. Overlapping descriptions of the components just described are omitted here to avoid repetition. Universal device 900 also includes a universal interface board 901. Thus, the general purpose device of this embodiment is substantially similar to the audio / video general purpose device 700 described above with reference to FIG. 13 except that it includes a universal interface board 901 instead of an AV-ready interface board 705. It is composed.

In the general purpose apparatus 900 of this embodiment shown in FIG. 15, the universal interface board 901 is an interface with a recording medium similar to the AV-ready interface board 705 of the audio / video general purpose apparatus described above with reference to FIG. . However, the general purpose apparatus 900 does not include an authentication processing unit or a switch circuit for authenticating with the recording medium.

As a result, when the audio / video recording medium 600A described above with reference to FIG. 10 is connected to the universal interface board 901 in the general-purpose apparatus 900 of the present embodiment, the authentication processing unit of the audio / video recording medium 600A ( 603 cannot authenticate with general purpose device 900, and as a result, the switch circuit 602 of the audio / video recording medium 600A is not exchanged.

Therefore, the general purpose apparatus 900 of the present embodiment is controlled such that various information signals such as audio signals, video signals, and computer data cannot be copied to the audio / video recording medium 600A. As a result, it is possible to prevent the illegal copying of content signals such as audio signals to the audio / video recording medium using the general purpose apparatus.

On the other hand, when the general-purpose recording medium 600B described above with reference to FIG. 11 is connected to the general-purpose interface board 901 of the general-purpose device 900, the general-purpose device 900 can be used for various purposes such as audio signals, video signals, and computer data. The information signal is controlled to be recorded on the general-purpose recording medium 900B.

However, as described above, the audio / video-only device or the audio / video general purpose device cannot read or reproduce the information signal recorded on the general-purpose recording medium 600B because no authentication can be made. Therefore, even if content information such as an audio signal is copied to the general purpose recording medium by the general purpose device, it cannot be reproduced using the audio / video-only device or the audio / video general purpose device, so that illegal copying of the content information using the general purpose device is prevented. Can be prevented.

In the above-described embodiment, the case where an audio signal as content information is recorded on the recording medium is described as an example, but it should be noted that the information signal to be copied is not limited to the audio signal. For example, the present invention can be applied to the case where a video signal or an audio signal and a video signal are recorded on a recording medium.

For example, when a video signal is recorded on a recording medium, copy control of the CGMS method should be used instead of copy control of the SCMS method.

Further, in the above-described embodiment, the audio / video recording medium, the audio / video-only device, and the audio / video general purpose device each include an authentication processing unit, and the audio / video recording medium and the audio / video-only device and the audio / Each of the video general purpose devices distinguishes on the recording device side whether the other party recording medium is an audio / video recording medium or a general purpose recording medium, while the recording medium side determines whether the other party recording device is an audio / video-only device or an audio / video general purpose device. Communicate with each other through an authentication processing unit to achieve authentication between them to distinguish whether or not.

However, the method of distinguishing the recording medium is not limited to this authentication method through the authentication processing unit, and for example, the audio / video recording medium or the general-purpose recording medium is placed in the area of the recording medium which cannot be accessed or read by the user. It is possible to distinguish recording media by recording the recording medium information indicated, reading the media information through an audio / video-only apparatus or an audio / video general purpose apparatus, and determining which information signal is recorded based on the media information. Do.

Further, in the above-described embodiment, as described above with reference to Fig. 8, which information signal is designed to record the device, which information signal is recorded on the recording medium on which the information signal is recorded by the device, and also the normal speed copying. And a copy control method is selected depending on which of the fast copy is used. However, the selection is not limited to this.

For example, the copy control method can be selected based on the result of discriminating which information signal is for the recording medium on which the information signal is recorded. In particular, it is distinguished which information signal is a recording medium, and the copy control method performs copy control in accordance with a predetermined copy control method when an information signal of a type originally to be recorded on the recording medium is to be recorded on the recording medium. For example, when an information signal of a different type from that originally recorded on the recording medium is to be recorded on the recording medium, the recording is selected to be prohibited.

As a result, the inconvenience that arises from recording an information signal different from that originally to be recorded on the recording medium is, for example, that the recorded information is not treated as the original information signal but is treated as general-purpose data and copied freely. This can be prevented.

Further, when the recording medium on which the information signal is recorded in accordance with an instruction from the user is an audio / video recording medium, normal speed copying can be used without failing to copy the audio signal or the video signal to the audio / video recording medium.

As a result, when an audio signal or a video signal as content information is copied to an audio / video recording medium, high-speed copying is disabled, making it impossible to produce a plurality of audio / video recording media in which the same content information is copied in a short time. . As a result, illegal copying of the content information can be prevented so that the benefits and rights of the copyright holder of the content information can be protected.

Alternatively, the copy control method can be selected according to the result of discrimination of which information signal the recording medium is for and whether the selected recording speed is normal speed or high speed. For example, if the recording medium to which the information signal is copied is an audio / video recording medium and normal speed copying is selected, copy generation limit control of the SCMS method or the CGMS method is executed. If the recording medium is an audio / video recording medium and high speed recording is selected, copy control of the UCS method is executed.

As a result, when a recording medium to which the same information signal is copied can be produced in a short time, copy control of the UCS method can be executed to prevent illegal copying.

In order to prevent illegal copying of content information such as an audio signal or a video signal, the copy control method may be selected according to distinguishing a recording apparatus that records an information signal on a recording medium by determining which information signal is recorded, or Which information signal is recorded can also be selected in accordance with distinguishing a recording apparatus for recording an information signal on a recording medium by determining which of normal speed copying and high speed copying should be used.

Alternatively, the copy control method used may be selected depending on whether normal speed copying or high speed copying is used when the information signal is recorded on the recording medium. In this case, when the information signal is recorded on the recording medium by high-speed copying, if a copy control method using a stricter copy limit is used than when normal speed copying is executed to execute copy control of the UCS method, Illegal copying can be effectively prevented.

In this manner, copy control of the copy generation limit method of the SCMS method or the CGMS method can be used when normal speed copying is performed by the audio / video-only apparatus. On the other hand, if there is a high possibility of high-speed copying that can be used for illegal copying such as bulk copy production, illegal copying can be effectively prevented by using the copy control of the UCS method, which uses stricter copy restrictions than the SCMS method or the CGMS method, for example. Can be.

On the other hand, a general-purpose device such as a computer can copy information signals to a recording medium relatively easily and quickly from its characteristics, distribute audio signals through a network or receive audio signals distributed thereon and record them on the recording medium. Therefore, when a general purpose apparatus is included, illegal copying of content information can be effectively prevented, for example, by executing copy control of the UCS method irrespective of whether normal speed copying or fast copying is executed.

Furthermore, the copy control method can be selected according to the recording medium, the recording device, and the recording speed, so that when an audio / video-only device or an audio / video general purpose device is used, it is possible to use a general recording medium that is likely to be illegally copied. The recording of the content information may be prohibited. In addition, recording of the information signal on the audio / video recording medium by the general purpose apparatus can be prohibited.

In addition, content information such as an audio signal or a video signal recorded on a general-purpose recording medium that does not guarantee copy control is controlled such that it cannot be reproduced by an audio / video-only device or an audio / video general purpose device.

Therefore, even if the general purpose device is used to copy content information such as an audio signal or a video signal to the general-purpose recording medium, the content information cannot be reproduced or used by the audio / video-only device or the audio / video general purpose device. Illegal copying can be prevented.

In addition to the UCS method, the copy generation control method of the SCMS method and the CGMS method is used as the copy control method, but the copy control method is not limited thereto. For example, "Copy Free", "Copy Only" (Copy Once), "No More Copy", or "No Copy" ( It is of course possible to use an electronic watermark technique that forms electronic watermark information indicating " Never Copy " and transmits electronic watermark information superimposed thereon together with content information such as an audio signal or a video signal.

In this case, the recording apparatus side can extract electronic watermark information superimposed on content information such as an audio signal or a video signal, and use the extracted electronic watermark information to perform copy generation restriction control.

Of course, other copy control methods as well as copy control methods of the SCMS method, the CGMS method, the digital watermark processing method, and the UCS method may be used.

Further, in the above-described embodiment, the case where the audio signal reproduced by the reproducing apparatus for the audio signal, such as the reproducing apparatus for the CD, is copied to the recording medium has been described as an example. It is not limited.

The present invention can also be applied when content information such as an audio signal or video signal transmitted through a broadcast medium or content information transmitted through a network such as the Internet is recorded on a recording medium. In this case, identification information such as content ID or information for copy generation restriction control must be added and transmitted along with the transmitted content information.

Although it has been described herein that the copy control is executed by the recording apparatus side rather than the reproduction apparatus side, the copy control is also a reproduction in which the transmission of content information to the recording apparatus side is controlled in accordance with the recording medium, the recording apparatus and / or the recording speed. It should be noted that it includes copy control by the device side. Copy control also includes the movement of data.

While the preferred embodiments of the present invention have been described with particular details, these descriptions are for illustrative purposes only, and it should be understood that changes and modifications may be made without departing from the spirit or scope of the following claims.

 According to the present invention, illegal copying of the information signal can be effectively prevented to appropriately protect the rights of the copyright owner of the information signal without reducing the convenience to the user of the information signal.

Claims (37)

An output device for adding additional information to data and outputting result data, Identification data generating means for generating identification data for identification of the data; Copying count data compared to copying history data of the data stored in a recording apparatus capable of recording the data on a medium to limit the number of times of copying the data to other media. Copy count data generating means for generating; Adding means for adding the identification data and the copy count data to the data; Output means for outputting said data having said identification data and said copy count data added, And said adding means superposes said identification data and said copy count data on said data as an electronic watermark. The method of claim 1, And recording means which has the identification data and the copy counter data added, and records the data output from the output means on a recording medium. delete A recording apparatus for recording data on a recording medium, Identification data detection means for detecting identification data for identification of the data from the data; Copy count data detecting means for detecting copy count data for limiting the number of copies of said data from said data; Recording control means for controlling the recording of the data on the recording medium based on the identification data detected by the identification data detecting means and the copy count data detected by the copy count data detecting means; A next generation copy restriction data detection means for detecting next generation copy restriction data for limiting copying of a next generation of the data from the data, And the recording control means controls the recording of the data on the recording medium based on the next generation copy restriction data detected by the next generation copy restriction data detecting means. The method of claim 4, wherein The recording control means includes storage means for storing the identification data and the copy count data in a corresponding relationship with each other, and the recording control means includes the identification data and the copy stored in the storage means corresponding to the data. And a recording apparatus for controlling the recording of the data on the recording medium in response to count data. The method of claim 5, And additional means for adding device identification data of the recording apparatus to the data. The method of claim 6, Device identification data detecting means for detecting the device identification data added to the data recorded on the recording medium, and data deleting means for deleting the data recorded on the recording medium, The recording control when the data recorded on the recording medium is deleted by the data deleting means and the device identification data detected by the device identification data detecting means and the device identification data of the recording device coincide with each other. Means for increasing the number of times allowed for copying the copy count data corresponding to the deleted data stored in the storage means. delete An output method for adding additional information to data and outputting result data, An identification data generation step of generating identification data for identification of the data; A copy count data generating step of generating copy count data to be compared with copy history data of said data stored in a recording apparatus capable of recording said data to a medium so as to limit the number of copies of said data to other media; Adding the identification data and the copy count data to the data; An output step of outputting said data with said identification data and copy count data added, And said adding step superimposes said identification data and said copy count data on said data as an electronic watermark. A recording method for recording data on a recording medium, An identification data detection step of detecting identification data for identification of the data from the data; A copy count data detecting step of detecting copy count data for limiting the number of copies of the data from the data; A recording control step of controlling the recording of the data on the recording medium based on the identification data detected by the identification data detecting step and the copy count data detected by the copy count data detecting step; A next generation copy restriction data detection step of detecting next generation copy restriction data for limiting copying of a next generation of the data from the data, And the recording control step controls the recording of the data on the recording medium based on the next generation copy restriction data detected in the next generation copy restriction data detection step. A recording medium on which data is recorded, The data; Identification data for identification of the data, Copy count data to be compared with copy history data of the data stored in a recording apparatus capable of recording the data on a medium to limit the number of times of copying the data to other media; And next-generation copy restriction data for limiting next-generation copying of the data from the data. A recording medium on which data is recorded, The data; Identification data for identification of the data, Copy count data to be compared with copy history data of said data stored in a recording apparatus capable of recording said data to a medium so as to limit the number of times said data is copied to other media, And the identification data and the copy count data are superimposed as digital watermark data. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete A recording apparatus for recording data on a recording medium, Identification data detection means for detecting identification data for identification of the data from the data; Copy count data detecting means for detecting copy count data for limiting the number of copies of said data from said data; Recording control means for controlling the recording of the data on the recording medium based on the identification data detected by the identification data detecting means and the copy count data detected by the copy count data detecting means; Additional means for adding device identification data of the recording apparatus to the data; Device identification data detection means for detecting the device identification data added to the data recorded on the recording medium; Data deleting means for deleting the data recorded on the recording medium; The recording control means includes storage means for storing the identification data and the copy count data in a corresponding relationship with each other, and the recording control means includes the identification data and the copy count stored in the storage means corresponding to the data. Control the recording of the data to the recording medium in response to the data, The recording control when the data recorded on the recording medium is deleted by the data deleting means and the device identification data detected by the device identification data detecting means and the device identification data of the recording device coincide with each other. Means for increasing the number of times allowed to copy the copy count data corresponding to the erase data stored in the storage means. A recording method for recording data on a recording medium, Detecting identification data for identification of the data from the data; Detecting copy count data to limit the number of copies of the data from the data; Controlling recording of the data on the recording medium based on the identification data detected in the identification data detection step and the copy count data detected in the copy count data detection step; Adding device identification data of the recording apparatus to the data; Detecting the device identification data added to the data recorded on the recording medium; Deleting the data recorded on the recording medium; The recording control step includes storing the identification data and the copy count data in a relationship corresponding to each other, wherein the recording control step includes the identification data and the copy count data stored in the storage step corresponding to the data. In response to control the recording of the data to the recording medium, When the data recorded on the recording medium is deleted in the data erasing step, and the device identification data detected in the device identification data detection step and the device identification data of the recording device coincide with each other, the recording control step is executed in the storage. Increasing the allowed number of copies of the copy count data corresponding to the erase data stored in the step. 13. The recording medium of claim 12, wherein the data further includes device identification data of a recording apparatus that records data from another medium.

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