JP4573377B2 - Information processing apparatus and method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an information processing apparatus and method.LawIn particular, an information processing apparatus and method suitable for use in suppressing unauthorized copying of digital content dataLawAbout.
[0002]
[Prior art]
Conventionally, such as AV (Audio Visual) data recorded on a digital recording medium such as a CD (Compact Disc), an MD (Mini Disc), a DVD (Digital Versatile Disc), etc., or broadcast on a digital satellite broadcasting service. SCMS (Serial Copy Management System) and CGMS (Copy Generation Manegement System) exist in order to respect the copyrights of digital content data and prevent them from being copied indefinitely.
[0003]
In SCMS and CGMS, three types of copy permission conditions (free copy, one copy can be copied (copy once), and copy prohibition (prihibit)) are defined for digital content data. For digital content data for which there is a right, the copy permission condition “replicatable only for one generation” is usually applied in consideration of personal editing by the user.
[0004]
[Problems to be solved by the invention]
By the way, the original digital content data to which the copy permission condition “only one generation can be copied” is applied, the first generation data (child of the original data) is copied and the second generation data (the grandchild of the original data). Cannot be generated, but there is a problem that the number of generated first generation data cannot be limited.
[0005]
Moreover, even if the number of first generation data to be generated can be limited, if there is a system that permits generation of a plurality of first generation copy data by paying a consideration, the copyright owner and the user However, there is a problem that such a system does not exist.
[0006]
  The present invention has been made in view of such a situation,DeIt is intended to respect the copyright of digital content data and improve user convenience.
[0007]
[Means for Solving the Problems]
  The recording / reproducing apparatus of the present invention records on a recording medium digital content data to which a copy permission condition is attached, and generates a copy of the digital content data recorded on the recording medium on another recording / reproducing apparatus. In response to a request from the user, it includes extraction means for extracting the copy permission condition given to the digital content data, and control means for controlling the copy of the digital content data based on the extracted copy permission condition. When the extracted copy permission condition is free to copy, the copy of the digital content data recorded on the recording medium is generated on another recording / playback device, and when the extracted copy permission condition is copy prohibition, A copy of the digital content data recorded on the recording medium is generated on another recording / reproducing apparatus. , To erase the digital content data from the recording medium, extracted duplication permission conditionOne to oneIf the permission is granted, the recording history of the digital content data recorded on the other recording / reproducing apparatus is referred to, and the ID for identifying the digital content data and the ID for identifying the recording / reproducing apparatus are referred to for other recording / reproducing. That the device has recorded digital content dataAbsentAnd confirmdid itSometimes a copy of the digital content data is generated on another recording / playback device on condition that the user accepts the payment.When it is confirmed that the other recording / reproducing apparatus has recorded the digital content data, copying of the digital content data is prohibited. If the extracted copy permission condition is one-to-many permission, a request from the user is issued. Each time, a copy of the digital content data is generated on another recording / playback device on condition that the user pays for payment..
[0008]
In the copy permission condition given to the digital content data, when the digital content data is recorded at a speed that is 1 times the playback speed, the charge amount is free, and the digital content data is recorded at a predetermined speed faster than the playback speed. In such a case, it is possible to include billing information that charges the billing amount.
[0009]
  According to the recording / reproducing method of the present invention, a recording step of recording digital content data to which a copy permission condition is given on a recording medium, and a copy of the digital content data recorded on the recording medium is generated on another recording / reproducing apparatus. In response to a request from the user, the digital content data includes an extraction step for extracting the copy permission condition, and a control step for controlling the copy of the digital content data based on the extracted copy permission condition. When the extracted copy permission condition is free to copy, the copy of the digital content data recorded on the recording medium is generated on another recording / playback device, and when the extracted copy permission condition is copy prohibition, A copy of the digital content data recorded on the recording medium is put on another recording / playback device. Causes made, to erase the digital content data from the recording medium, extracted duplication permission conditionOne to oneIf the permission is granted, the recording history of the digital content data recorded on the other recording / reproducing apparatus is referred to, and the ID for identifying the digital content data and the ID for identifying the recording / reproducing apparatus are referred to for other recording / reproducing. That the device has recorded digital content dataAbsentAnd confirmdid itSometimes a copy of the digital content data is generated on another recording / playback device on condition that the user accepts the payment.When it is confirmed that the other recording / reproducing apparatus has recorded the digital content data, copying of the digital content data is prohibited. If the extracted copy permission condition is one-to-many permission, a request from the user is issued. Each time, a copy of the digital content data is generated on another recording / playback device on condition that the user pays for payment..
[0010]
  In the recording / reproducing apparatus and method according to the present invention, the copy permission granted to the digital content data in response to a request from the user to generate a copy of the digital content data recorded on the recording medium on another recording / reproducing apparatus. Conditions are extracted. If the extracted copy permission condition is free to copy, a copy of the digital content data recorded on the recording medium is generated on another recording / playback apparatus. If the extracted copy permission condition is copy prohibition, a copy of the digital content data recorded on the recording medium is generated on another recording / reproducing apparatus, and the digital content data is erased from the recording medium. .further,The extracted duplication permission condition isOne to oneIn the case of permission, the ID for identifying the digital content data and the ID for identifying the recording / reproducing device, which are the recording history of the digital content data recorded on the other recording / reproducing device, are referred to, and the other recording / reproducing device is referred to. That the device has recorded digital content dataAbsentAnd confirmdid itSometimes, a copy of the digital content data is generated on another recording / playback device on condition that the user accepts the payment.When it can be confirmed that another recording / reproducing apparatus has recorded the digital content data, copying of the digital content data is prohibited, and if the extracted copy permission condition is one-to-many permission, a request from the user is issued. Each time a copy of the digital content data is generated on another recording / playback device, subject to the user's consent to the payment of the charge.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
A configuration example of a digital content data transmission system to which the present invention is applied will be described with reference to FIG. This digital content data transmission system is received by a receiving device 1 that receives digital content data broadcast by a digital broadcasting service (such as a digital satellite broadcasting service, a digital terrestrial broadcasting service, or a digital cable television broadcasting service). Recording / reproducing devices 5 and 6 for recording and reproducing digital content data on a recording medium, and a monitor 7 for displaying digital content data received by the receiving device 1 and digital content data reproduced by the recording / reproducing devices 5 and 6 Are connected via the IEEE 1394 bus 8.
[0020]
Here, the digital content data is, for example, AV data such as a movie to be broadcast, audio data of music, and the like, and a copy permission condition is given by the broadcast service provider. The copy permission conditions are the conditions defined in the conventional SCMS and CGMS (free copy, free copy for one generation, copy prohibit, and prohibit). (Allows only one copy of the original for one generation on a charge basis) and “One-to-many copy (allows one copy for a generation, multiple on the charge)” added. Shall be. It is assumed that the charge amount information is included in the copy permission condition. Items other than those described above can be added to the duplication permission condition.
[0021]
The receiving device 1 is connected to a monitor 2 that displays an image corresponding to a signal output from the receiving device 1. Further, a content management device 4 on the broadcast station side is connected to the receiving device 1 via a public telephone line network 3. The content management device 4 manages the viewing history of the receiving device 1 and the recording history of digital content data by the recording / reproducing devices 5 and 6.
[0022]
FIG. 2 shows a detailed configuration example of the receiving device 1. The receiving circuit 11 extracts the digital content data of the program corresponding to the user's channel selection operation from the digital broadcast signal input from the antenna or the like, and outputs it to the descrambling circuit 12. When the digital content data input from the receiving circuit 11 is scrambled, the descrambling circuit 12 cancels the scramble using the decryption key A supplied from the charging control circuit 13, and the bus encryption circuit 15 and the duplication permission condition extraction circuit 18.
[0023]
The accounting control circuit 13 supplies the descrambling circuit 12 with the decryption key A used for descrambling the digital content data to which the reproduction permission condition corresponding to the user viewing contract form is given. The charging control circuit 13 also records the user's viewing history (for example, recording of viewing a pay-per-view program) and the recording history of the digital content data of the recording / reproducing devices 5 and 6 input via the IEEE1394 interface 16 and the IEEE1394 bus 8. The stored viewing history and recording history are periodically transmitted to the content management apparatus 4 on the broadcasting station side via the modem 14 and the public telephone line network 3. The charging control circuit 13 can read the viewing history and recording history managed by the content management device 4. Further, the accounting control circuit 13 outputs the encryption key C for recording used by the recording / reproducing devices 5 and 6 supplied from the content management device 4 to the IEEE 1394 interface 16.
[0024]
When the copy permission condition given to the digital content data input from the descramble circuit 12 is not “free to copy”, the bus encryption circuit 15 receives an illegal response when the digital content data is transmitted to the IEEE 1394 bus 8. The digital content data is encrypted using the bus encryption key B and output to the IEEE 1394 interface 16 so that the digital content data is not intercepted and used by the client. Without being output to the IEEE 1394 interface 16.
[0025]
The IEEE 1394 interface 16 performs mutual authentication with the IEEE 1394 interface of the communication destination electronic device connected to the IEEE 1394 bus 8 (for example, the IEEE 1394 interface 31 (FIG. 3) of the recording / reproducing apparatus 5), and then the encrypted digital The content data and the bus encryption key B used for the encryption are transmitted to another electronic device via the IEEE 1394 bus 8. It should be noted that mutual authentication may not be performed when transmitting digital content data whose copy permission condition is “free copy”, that is, unencrypted digital content data. The IEEE 1394 interface 16 further transmits the recording encryption key C supplied from the content management apparatus 4 via the charging control circuit 13 and the public telephone line network 3 to the recording / reproducing apparatuses 5 and 6 via the IEEE 1394 bus 8.
[0026]
When the digital content data input from the IEEE 1394 interface 16 is encrypted, the bus encryption / decryption circuit 17 decrypts the digital content data using the bus encryption key B input at the same time, and extracts the copy permission condition. Output to the circuit 18. The duplication permission condition extraction circuit 18 converts the encoded digital content data (with the duplication permission condition) input from the descrambling circuit 12 or the bus encryption / decryption circuit 17 into the encoded digital content data. The encoded digital content data is output to the decode circuit 19 and the copy permission condition is output to the control circuit 20. The decoding circuit 19 decodes (MPEG-encodes) the encoded digital content data (for example, MPEG-encoded digital content data) and outputs it to the monitor 2.
[0027]
The control circuit 20 controls the drive 21 to read out the control program stored in the magnetic disk 22, the optical disk 23, the magneto-optical disk 24, or the semiconductor memory 25, and read out the control program and the duplication permission condition extraction circuit. Each circuit of the receiving apparatus 1 is controlled based on a copy permission condition for digital content data input from 18 and a command input from a user.
[0028]
FIG. 3 shows a detailed configuration example of the recording / reproducing apparatus 5. First, the recording system will be described. The IEEE 1394 interface 31 receives the digital content data and the bus encryption key B supplied from the communication destination via the IEEE 1394 bus 8 and outputs them to the bus encryption / decryption circuit 32. The IEEE 1394 interface 31 also transmits the digital content data input from the bus encryption circuit 40 and the bus encryption key B used for the encryption to the transmission destination electronic device via the IEEE 1394 bus 8. The IEEE 1394 interface 31 further receives the recording encryption key C supplied from the content management device 4 via the IEEE 1394 bus 8, the receiving device 1, and the public telephone network 3, and receives the recording encryption circuit 35 and the recording encryption key 35. The data is output to the encryption / decryption circuit 39.
[0029]
When the digital content data input from the IEEE 1394 interface 31 is encrypted, the bus encryption / decryption circuit 32 decrypts the signal using the bus encryption key B input at the same time, and the copy permission condition extraction circuit 33. Output to. The copy permission condition extraction circuit 33 separates the digital content data (which is given the copy permission condition) from the bus encryption / decryption circuit 32 into the digital content data and the copy permission condition, and records the digital content data. The data is output to the encryption circuit 35 and the copy permission condition is output to the recording control circuit 34.
[0030]
The recording control circuit 34 controls the recording encryption circuit 35 and the recording circuit 36 in accordance with the copy permission condition input from the copy permission condition extraction circuit 33. For example, when the copy permission condition of the digital content data is “copy prohibited”, the operations of the recording encryption circuit 35 and the recording circuit 36 are prohibited.
[0031]
The recording encryption circuit 35 encrypts the digital content data from the copy permission condition extraction circuit 33 using the recording encryption key C, and outputs the encrypted data to the recording circuit 36. The recording circuit 36 records the encrypted digital content data on the recording medium 37. The reproduction circuit 38 reads the encrypted digital content data recorded on the recording medium 37 and outputs it to the recording encryption / decryption circuit 39.
[0032]
Next, the reproduction system will be described. The reproduction circuit 38 reads the encrypted digital content data recorded on the recording medium 37 and outputs it to the recording encryption / decryption circuit 39. The recording encryption / decryption circuit 39 decrypts the encrypted digital content data input from the reproduction circuit 38 using the recording encryption key C, and outputs the decrypted digital content data to the bus encryption circuit 40. The bus encryption circuit 40 encrypts the digital content data input from the recording encryption / decryption circuit 39 using the bus encryption key B, and outputs the encrypted data to the IEEE1394 interface 16. The IEEE 1394 interface 31 transmits the digital content data input from the bus encryption circuit 40 and the bus encryption key B used for the encryption to the transmission destination electronic device via the IEEE 1394 bus 8. Further, the IEEE 1394 interface 31 transmits the recording history of the digital content data in the recording / reproducing device 5 (the work ID that identifies the digital content data and the device ID that identifies the recording / reproducing device 5) to the receiving device 1.
[0033]
The digital content data encrypted with the bus encryption key B is transmitted from the IEEE 1394 interface 31 to the monitor 7 via the IEEE 1394 bus 8 or displayed on the monitor 2 by being transmitted to the receiving device 1. The data is transmitted to the recording / reproducing apparatus 6 and recorded according to the duplication permission condition.
[0034]
Since the configuration of the recording / reproducing apparatus 6 is the same as that of the recording / reproducing apparatus 5, the description thereof is omitted.
[0035]
FIG. 4 shows a detailed configuration example of the monitor 7. The IEEE 1394 interface 41 receives the digital content data signal and the encryption key A supplied from the communication destination via the IEEE 1394 bus 8 and outputs them to the bus encryption / decryption circuit 42. When the digital content data input from the IEEE 1394 interface 41 is encrypted, the bus encryption / decryption circuit 42 decrypts the signal using the bus encryption key B input at the same time and outputs the decrypted signal to the demultiplexing circuit 43. To do. The demultiplexing circuit 43 separates the digital content data from the bus encryption / decryption circuit 42 into an encoded image signal and an encoded audio signal, and decodes the encoded image signal. The audio signal is output to the circuit 44 and the encoded audio signal is output to the audio decoding circuit 46.
[0036]
The image decoding circuit 44 decodes the encoded image signal input from the demultiplexing circuit 43 and outputs the decoded image signal to the display 45. The display 45 is a CRT, LCD, or the like, and displays an image corresponding to the image signal from the image decoding circuit 44. The audio decoding circuit 46 decodes the encoded audio signal input from the demultiplexing circuit 43 and outputs the decoded audio signal to the speaker 47. The speaker 47 emits the audio signal from the audio decoding circuit 46.
[0037]
Next, by using this digital content data transmission system, digital content data to which a copy permission condition “copying freedom”, “copying prohibition”, “copying one-to-one permission”, or “copying one-to-many permission” is given. Will be described with reference to the flowchart of FIG.
[0038]
This recording process is started when a channel selection command is input to the receiving apparatus 1 and a recording command is input to the recording / reproducing apparatus 5 by the user. In step S1, the IEEE 1394 interface 16 of the receiving apparatus 1 and the IEEE 1394 interface 31 of the recording / reproducing apparatus 5 perform mutual authentication via the IEEE 1394 bus 8 (including exchange of a bus encryption key).
[0039]
In step S <b> 2, in the receiving circuit 11 of the receiving device 1, digital content data of a program corresponding to a user's channel selection operation is extracted from a digital broadcast signal input from an antenna or the like and output to the descramble circuit 12. In the descrambling circuit 12, the scramble applied to the digital content data from the receiving circuit 11 is released using the decryption key A supplied from the charging control circuit 13, and the bus encryption circuit 15 and the copy permission condition extraction are performed. It is output to the circuit 18. In the copy permission condition extraction circuit 18, the copy permission condition assigned from the digital content data from the descramble circuit 12 is read and supplied to the control circuit 20. In the control circuit 20, the duplication permission condition is confirmed.
[0040]
In step S3, it is determined whether or not the copy permission condition confirmed in step S2 is “copy prohibited”. If it is determined that the copy permission condition is not “copy prohibited”, the process proceeds to step S4.
[0041]
In step S4, it is determined whether or not the duplication permission condition confirmed in step S2 is “duplication free”. If it is judged that the duplication permission condition is not “duplication free”, the process proceeds to step S5.
[0042]
In step S5, it is determined whether or not the copy permission condition confirmed in step S2 is “copy one-to-one permission”, and if it is determined that the copy permission condition is “copy one-to-one permission”, step Proceed to S6.
[0043]
In step S 6, the charging control circuit 13 refers to the recording history stored in itself (and the recording history read from the content management device 14), and the recording / reproducing device 5 records the digital content data (copying). Search the generated history. In step S7, based on the search result in step S6, it is determined whether or not the recording / reproducing apparatus 5 has recorded the digital content data, and the recording / reproducing apparatus 5 has recorded the digital content data. If it is determined that there is no, the process proceeds to step S8.
[0044]
In step S8, the user is presented with a charge price for recording the digital content data (creating a copy once) (for example, displayed on the monitor 2 directly connected to the receiving device 1). . In response to this presentation, the user inputs a command to the receiving apparatus 1 indicating whether or not to approve the payment.
[0045]
In step S9, the control circuit 20 determines whether or not the user has accepted the payment of the charge. If it is determined that the user has accepted the payment of the charge, the control circuit 20 stores the information in the charge control circuit 13; Proceed to step S10.
[0046]
In step S 10, the digital content data is encrypted by the bus encryption circuit 15 using the bus encryption key B, and transmitted from the IEEE 1394 interface 16 to the recording / reproducing apparatus 5. The digital content data is received by the IEEE1394 interface 31 of the recording / reproducing apparatus 5, decrypted by the bus encryption / decryption circuit 32, and then encrypted by the recording encryption circuit 35 using the recording encryption key C. Are recorded on the recording medium 37.
[0047]
If it is determined in step S5 that the copy permission condition confirmed in step S2 is not “copy one-to-one permission”, the copy permission condition given to the digital content data is “copy one-to-many permission”. Therefore, steps S6 and S7 are skipped.
[0048]
If it is determined in step S7 that the recording / playback apparatus 5 has recorded the digital content data as the broadcast signal, in step S12, the copy permission condition for the digital content data is set to “copy one pair”. “1 permission” and that a copy has already been generated once is presented, and the recording process is terminated.
[0049]
The recording process is also terminated when it is determined in step S9 that the user does not accept the payment.
[0050]
If it is determined in step S3 that the copy permission condition confirmed in step S2 is “copy prohibited”, it is presented in step S11 that the copy permission condition for the digital content data is “copy prohibited”. The recording process is terminated.
[0051]
If it is determined in step S4 that the duplication permission condition confirmed in step S2 is “duplication free”, steps S5 to S9 are skipped, and the digital content data is not subjected to bus encryption. The data is output to the IEEE 1394 bus 8 and is recorded on the recording medium 37 without being encrypted for recording in the recording / reproducing apparatus 5.
[0052]
As described above, according to the present invention, when digital content data is to be recorded, control is performed based on the copy permission condition assigned to the content. In particular, the copy permission condition is “copy one-to-one permission”. In some cases, since the recording history is referred to, it is possible to limit the number of copies of the first generation to 1, so that the copyright of the digital content data can be protected.
[0053]
By the way, when the digital content data recorded on the recording medium 37 by the recording / reproducing apparatus 5 is reproduced by the above-described processing and edited using the recording / reproducing apparatus 6 connected to the IEEE1394 bus 8, the editing result is the original. Since it is the second generation copy from the viewpoint of data, it can be executed only when the copy permission condition for the digital content data is “free copy”.
[0054]
Therefore, in order to improve the convenience for the user, even when the copy permission condition of the digital content data recorded on the recording medium 37 by the recording / playback device 5 is not “free copy”, the content is recorded using the recording / playback device 6. To be able to edit Specifically, after the digital content data is reproduced from the recording medium 37 by the recording / reproducing apparatus 5 and output to the recording / reproducing apparatus 6, the digital content data recorded on the recording medium 37 is automatically erased. Above, make sure there is only one copy of the original. The charge control circuit 13 of the receiving device 1 executes this control. By such processing, it is possible to move the copyrighted work (recorded digital content data) without generating new charges.
[0055]
Next, another example of giving a copy permission condition to digital content data will be described. For example, when broadcasting digital content data such as music at a transmission rate that can be recorded at a speed that is 1 times the playback speed, the charge amount included in the copy permission condition is free, and the playback speed is When broadcasting at a transmission rate that allows recording at 10 times speed, it is convenient for the user, so the charge amount included in the copy permission condition is charged.
[0056]
By doing so, instead of simply restricting the copying of digital content data, the creation of a copy is permitted on the condition of charging, or the work can be moved without incurring charging. User convenience is improved.
[0057]
By the way, the series of processes described above can be executed by hardware, but can also be executed by software. When a series of processing is executed by software, a program constituting the software may execute various functions by installing a computer incorporated in dedicated hardware or various programs. For example, it is installed from a recording medium in a general-purpose personal computer.
[0058]
As shown in FIG. 2, the recording medium is distributed to provide a program to the user separately from the computer, and includes a magnetic disk 22 (including a floppy disk) on which the program is recorded, an optical disk 23 (CD- It is not only composed of a package medium consisting of ROM (Compact Disc-Read Only Memory), DVD (Digital Versatile Disc), magneto-optical disk 24 (including MD (Mini Disc)), or semiconductor memory 25. It is configured by a ROM in which a program is recorded, a hard disk included in a storage unit, or the like that is provided to the user in a state of being preinstalled in a computer.
[0059]
In the present specification, the step of describing the program recorded in the recording medium is not limited to the processing performed in time series according to the described order, but is not necessarily performed in time series, either in parallel or individually. The process to be executed is also included.
[0060]
Further, in this specification, the system represents the entire apparatus constituted by a plurality of apparatuses.
[0061]
【The invention's effect】
  As aboveThe present inventionAccording toDeIt is possible to respect the copyright of the digital content data and improve user convenience.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration example of a digital content data transmission system to which the present invention is applied.
FIG. 2 is a block diagram illustrating a configuration example of the receiving device 1 in FIG. 1;
3 is a block diagram showing a configuration example of the recording / reproducing apparatus 5 in FIG. 1. FIG.
4 is a block diagram illustrating a configuration example of a monitor 7 in FIG. 1. FIG.
FIG. 5 is a flowchart for explaining the operation of the digital content data transmission system.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Receiving device, 4 Content management device, 5, 6 Recording / reproducing device, 7 Monitor, 8 IEEE1394 bus, 11 Receiving circuit, 13 Charge control circuit, 15 Bus encryption circuit, 16 IEEE1394 interface, 17 Bus encryption / decryption circuit, 18 copy permission condition extraction circuit, 20 control circuit, 21 drive, 22 magnetic disk, 23 optical disk, 24 magneto-optical disk, 25 semiconductor memory, 31 IEEE 1394 bus, 33 copy permission condition extraction circuit, 35 recording encryption circuit, 39 recording Encryption / decryption circuit

Claims (3)

In a recording / reproducing apparatus for recording / reproducing digital content data,
A recording means for recording the digital content data to which a copy permission condition is given on a recording medium;
In response to a request from a user to generate a copy of the digital content data recorded on the recording medium on another recording / playback device, an extraction unit that extracts the copy permission condition attached to the digital content data;
Control means for controlling copying of the digital content data based on the extracted copy permission condition;
The control means includes
If the extracted copy permission condition is free to copy, a copy of the digital content data recorded on the recording medium is generated on another recording / playback device,
When the extracted copy permission condition is copy prohibition, a copy of the digital content data recorded on the recording medium is generated on another recording / reproducing device, and the digital content data is deleted from the recording medium. ,
When the extracted copy permission condition is one-to-one permission,
The other recording / reproducing apparatus refers to an ID for identifying the digital content data and an ID for identifying the recording / reproducing apparatus, which are recording histories of the digital content data recorded on the other recording / reproducing apparatus. sometimes There was confirmed that there is never recorded the digital content data, a copy of the digital content data on condition approval of payment billing from the user is generated on the other recording and reproducing apparatus,
When it can be confirmed that the other recording / playback apparatus has recorded the digital content data, copying of the digital content data is prohibited,
When the extracted copy permission condition is one-to-many permission, a copy of the digital content data is copied to the other recording / reproducing device on condition that the user pays for the charge for each request from the user. Recording / playback device to be generated . The copy permission condition assigned to the digital content data includes a charge amount free when the digital content data is recorded at a speed that is one time the playback speed, and a predetermined speed that is higher than the playback speed. If it is recorded in, it includes billing information that charges the billing amount
Recording and reproducing apparatus according to 請 Motomeko 1. In a recording / reproducing method of a recording / reproducing apparatus for recording / reproducing digital content data,
A recording step of recording the digital content data to which a copy permission condition is given on a recording medium;
In response to a request from a user to generate a copy of the digital content data recorded on the recording medium on another recording / playback apparatus, an extraction step for extracting the copy permission condition given to the digital content data;
A control step of controlling copying of the digital content data based on the extracted copy permission condition;
The control step includes
If the extracted copy permission condition is free to copy, a copy of the digital content data recorded on the recording medium is generated on another recording / playback device,
When the extracted copy permission condition is copy prohibition, a copy of the digital content data recorded on the recording medium is generated on another recording / reproducing device, and the digital content data is deleted from the recording medium. ,
When the extracted copy permission condition is one-to-one permission,
The other recording / reproducing apparatus refers to an ID for identifying the digital content data and an ID for identifying the recording / reproducing apparatus, which are recording histories of the digital content data recorded on the other recording / reproducing apparatus. sometimes There was confirmed that there is never recorded the digital content data, a copy of the digital content data on condition approval of payment billing from the user is generated on the other recording and reproducing apparatus,
When it can be confirmed that the other recording / playback apparatus has recorded the digital content data, copying of the digital content data is prohibited,
When the extracted copy permission condition is one-to-many permission, a copy of the digital content data is copied to the other recording / reproducing device on condition that the user pays for the charge for each request from the user. Recording / playback method to be generated .

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