JP2000298941A - Digital data recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate copyright management of audio data or the like in a digital data recording device. SOLUTION: A digital data recording device 1 is comprised of a data input/ output part 1a, an electronic wallet 1b, a CPU 1c, a code generator le, a recording medium if, a RAM 1j, etc. When data is copied from a data provider P, copy history information and an ISRC code are detected from copyright management information in a trpnsmission flag, and incoming data is copied in the recording medium if without charge and information of the frequency in copy of this data is recorded if it has never been copied, but it is charged by the electronic wallet 1b if the frequency in copy is two or more. If the ISRC code is not given, a temporary code is generated by the recorded together with this code information to facilitate following copy management.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a digital data recording apparatus capable of accurately managing copyright when copying digital data such as audio data.

[0002]

2. Description of the Related Art At present, for example, a CD (compact disk) is provided with an ISRC (International Standard Recording Code: ISRC) in an area called a post-cutting area on the inner periphery thereof so that copyright management can be performed.
ecording Code, hereinafter simply referred to as ISRC code. ) Is recorded.

The applicant of the present application has disclosed in
According to the invention disclosed in Japanese Patent No. 177767, a proposal has been made such that copyright management such as copying can be performed by charging using an ISRC code using a DVD disk as an example.

[0004]

However, in some cases, there are discs on which ISRC codes are not recorded, and it is necessary to deal with these discs. In some countries, for example, when copying a CD, it is customary to copy once free of charge (US, Japan), and in some countries (for example, Europe), the first copy is made for a fee. There is a demand to change accounting management according to the number of copies. Needless to say, in the case of charging, a more simplified system is desired. Then, this invention aims at providing the apparatus which satisfy | fills the above needs.

[0005]

The present invention comprises the following means 1) to 3) to solve the above-mentioned problems. That is,

(1) Detecting the presence or absence of predetermined copyright management information of incoming data to be copied, determining whether the incoming data can be copied based on the copyright management information, and permitting copying. A digital data recording device comprising at least a charging unit and an electronic wallet on which the charging is performed, wherein the unit includes at least one of an ISRC code and copy management information in the copyright management information. Determine whether copying is possible based on the information, determine whether charging is possible or the amount charged based on the copy management information, and store the copy history information as copy management information when the copy is permitted. A digital data recording device, comprising:

2) The presence or absence of predetermined copyright management information of the incoming data to be copied is detected, and whether or not the incoming data can be copied is determined based on the copyright management information. What is claimed is: 1. A digital data recording apparatus comprising at least charging means and an electronic wallet for performing the charging, comprising a charging management table including at least an ISRC code and copy history information corresponding to the ISRC code in advance. In the copyright management information, the ISRC
A digital data recording apparatus, wherein a copy history information corresponding to the code and the ISRC code in the accounting management table is detected, and accounting is performed according to the copy history information.

[0008] 3) At least the ISRC
3. The digital data recording apparatus according to claim 1, further comprising means for generating a code corresponding to the ISRC code when no code is given.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to preferred embodiments. FIG. 1 is a schematic block diagram showing a recording system in which the digital data recording device according to the embodiment is adopted. The digital data recording device according to the present embodiment may be a recording device for recording digital audio data such as CD or DVD audio, or a recording device for recording video data such as a DVD video disc. In order to make the description easy to understand, a description will be given here as a recording device that handles audio data.

The digital data recording apparatus 1 exchanges data with a data providing apparatus P such as a digital audio disk such as a CD or a DVD disk (video / audio) player or the digital data recording apparatus according to the present embodiment. For example, IEEE 1394 standard or IEC9
58, an input / output unit 1a for connection via a serial interface, a detachable, for example, a prepaid card type or a non-removable built-in electronic wallet 1b, control of each unit in the apparatus, and execution of a program of the apparatus. Generator 1e for generating a temporary ISRC code when an ISRC code is not added to incoming information described later, for example, a detachable recording medium composed of an IC memory, a memory card, or the like. 1f, a RAM 1j for temporarily taking in the incoming copyright information, an internal bus 1g for exchanging data with the above-mentioned units, for example, reading digital audio data recorded on a recording medium 1f, and converting the digital audio data into analog data. D / A converter 1h, and, for example, convert as a 2-channel stereo signal It is more general configuration and the output terminal 1i or the like for outputting an analog audio signal.

FIG. 2 (a) shows a schematic data structure of a recording medium 1f, in which a header section (or physical information section) 1f-1 for recording copyright information and audio data and the like are recorded. Data section (applied physical information section) 1
f-2. FIG. 2B shows a schematic configuration of the header section (or physical information section) 1f-1.
The sector is composed of six sectors “1” to “16”, physical format information is recorded in sector “1”, disc manufacturing information is recorded in sector “2”, and sectors “3” and “4” are recorded.
Has copyright management information recorded therein. For example, in the first byte of these sectors “3” and “4”,
For example, copy management information such as the number of copies and a fee structure according to the copy is recorded. From the second byte to the 18th byte, an ISRC code indicating a music source (program source) and an SID (source ID) indicating a disc manufacturer are recorded for each title.

Next, the operation of the recording apparatus will be described with reference to the flowchart of FIG. The data providing device P is set to the reproduction state or the data transfer mode, and the data recording device 1 is set to the recording mode (copy mode) by operating means (not shown). First, if there is header information from the data providing device P, the information is received, and this data is temporarily stored in the RAM.
1j (step S1). If there is copy management information in this header, the copy management information is checked, and if it is confirmed that the incoming information has not been copied in the past (one generation) (Yes in step S2), it is copied to the copy management information. The number of times is increased by one, the second generation flag is set, and the header is changed (step S3). The copy mode is executed to copy the subsequent audio data together with the header into the above-described predetermined area in the recording medium 1f (step S3). Step S
9).

On the other hand, in step S1, if there is no copy management information in the header, or if it is confirmed that the source information has already been copied one or more times in the header, ISRC is included in the header. It is determined whether the code is stored or a temporary ISRC code described below is recorded (step S4). If Yes, it is checked whether the balance is insufficient in the electronic wallet 1b. (Step S7) If it is not insufficient (Yes in Step S7), the number of copies is increased by one in the copy management information (Step S8), and the copy fee is paid (ie, reduced) from the electronic wallet 1b (Step S9). ), And record and copy the ISRC code, the copy management information, and the audio data in the recording medium 1f (step S).
9). If NO in step S6, the process ends (copying is not possible).

If NO in step S4, it is first checked whether or not the balance is insufficient in the electronic wallet 1b (step S4).
4), the code generator 9 generates a code consisting of an identification character and a random number, adds it to the data of a predetermined byte at the head of the audio data, and makes this a temporary ISRC code (step S6). The number of times of copying is increased by 1 (step S7). Then, after charging, the temporary ISRC code, copy management information, and audio information are copied into the recording medium 1f. If there is no balance in step S4, the process ends (copying is not possible).
When data is transferred from this device, the audio data is transferred via the input / output unit 1a together with the header information recorded on the recording medium 1f.

As described above, according to the apparatus of this embodiment,
The number of copies of digital data such as CDs is managed by the header, and free copy is permitted once, and after that,
If there is an ISRC code or if no ISRC code is given, charging is performed, so that copyright management is ensured. When the ISRC code is not assigned, a temporary ISRC code is assigned. When copying, the number of times of copying is increased and managed according to each code. Copyright management when performing transfer or the like becomes easier.

Next, a data recording apparatus according to a second embodiment will be described with reference to the flowcharts shown in FIGS. Components having the same functions and effects as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted. The apparatus according to the second embodiment has a configuration in which a charging management table 1d indicated by a dashed line is added to the apparatus shown in FIG. The charging management table 1d is provided with an ISRC code corresponding to about one million songs, an additional number of copies corresponding to these codes, and an ISC code or code corresponding to a newly released song. This is a management table capable of additionally recording a temporary code when there is no code and additionally recording the number of copies corresponding to these.

In FIG. 4, when the data providing apparatus P is set to the reproduction mode or the data transfer mode and the apparatus according to the present embodiment is set to the recording mode in the same manner as described above, if there is header information, it is received (step S10). It is determined whether an ISRC code is stored in the header (step S11). If Yes, the ISRC code is searched in the table 1d and the number of times the ISRC code is copied is checked (step S14). When it is confirmed that the source information is copied for the first time (Yes in step S15), the number of times is set to 1 for the corresponding code in the table 1d.
(Step S16). If there is information on the ISRC code in the transmission information due to the appearance of a new song or the like, but there is no code data in the table 1d, the table 1d
Record the first copy with the ISRC code. Next, the number of copies is increased by 1 in the transmission header, a flag for the second generation is set, and the header is changed (step S13). Then, the copy mode is entered, and the audio data is transferred together with the changed header to a predetermined area in the recording medium 1f. Copy (step S21).

If it is determined in the reference to the management data in the table 1d in the step S15 that the copying is not the first time (NO in the step S15), it is checked whether or not the balance is insufficient in the electronic wallet 3 (step S17). ), NO
If so, the process ends (copying is not possible), and if it is determined that there is a balance (Yes in step S17), the number of times of copying the ISRC code is increased by one in the table 1d and recorded (step S18), and The header is changed by increasing the number of times of copying by 1 (step S19), billing is performed, that is, the electronic wallet is reduced (step S20), and the header and audio data are copied to a predetermined area in the recording medium 1f (step S20). Step 21).

If it is determined in step S11 that the ISRC code is not recorded in the header of the source information (NO in step S11), the identification character and the random number are generated by the code generator 1e in the same manner as in the above embodiment. Is generated, and this code is added to a part of the copy data to form a temporary ISRC code. The temporary code and the number of copies are recorded in the table 1d (step 16). The number of times of copying is increased by 1 (step 13), and if not, the temporary ISRC code, the number of times of copying information and the audio data are recorded and copied to the recording medium 1f as it is (step S21). In step S11, the detection method when the temporary 1SRC code is received does not have to be a perfect match between the code in the table and the incoming code, but may be a match based on a relative comparison.

Therefore, according to the apparatus according to the second embodiment, since the table for copyright management is prepared,
This system enables closed system copyright management only, and the copy history is also recorded on the recording medium 1f, which facilitates subsequent copying at the time of transfer or the like. In this embodiment, the focus is on the copy management of the closed system only for this apparatus, and recording the copy history on the recording medium 1f is not a necessary requirement.

Next, a third embodiment will be described. For example, depending on the disc, an IRSC code may be added after actual data such as audio data to be copied, so that such disc copy management can be performed. FIG. 5 is a flowchart according to the embodiment. The difference from the flowchart of FIG. 4 described above is that step S10 of decoding the IRSC code instead of receiving the header information immediately after the start.
a, step S23, and step S24.
This is the point that has been added.

In the case of this device, the audio data before the IRSC code arrives is copied and
Data including the RSC code is temporarily loaded into the RAM, and the data is read out to the CPU 1c to decode the IRSC code. Then, in step 17 for checking the balance after the detection of the IRSC code, when it is determined that the balance is small, the copy mode is stopped (step S23), and the data copied so far is erased. Things.

In the above-described embodiment, the data providing device has been described using a recording device. However, the present invention is not limited to this, and may be a device having a reproducing function. In addition, the charge for copying may be made from the first copy, or the fee may be changed according to the number of copies. In that case, the CPU
Prepare a charge table according to the number of copies in 1c,
What is necessary is just to refer to this and charge.

[0024]

According to the apparatus of the present invention, whether or not copying is permitted is determined based on the copyright management information.
The built-in electronic wallet allows billing,
Temporary ISR for data without SRC code
Copy management can be performed by adding a C code, and copyright management can be performed with an extremely simple configuration. Further, in an apparatus having a means for recording copy history information, it is easy to perform subsequent copy management, for example, when transferring data after copying. Further, in a device having a billing table, a closed billing system using only the device becomes possible, and the copyright management system can be further simplified.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a recording system employing a data recording device according to an embodiment of the present invention.

FIG. 2 is a data area diagram of a recording medium.

FIG. 3 is a flowchart for explaining the operation of the apparatus of FIG. 1;

FIG. 4 is a flowchart for explaining a second embodiment.

FIG. 5 is a flowchart for explaining a third embodiment.

[Explanation of symbols]

 Reference Signs List 1 data recording device 1a input / output unit 1b electronic wallet 1c CPC (control means) 1d charging table 1e code generator 1f recording medium 1j RAM P data providing device

Continued on the front page F term (reference) 5B017 AA06 BA05 BA07 BB03 BB10 CA09 CA14 CA16 5C053 FA15 FA30 JA01 JA30 KA01 KA24 KA25 KA26 LA20 5D044 AB05 BC06 CC04 DE17 DE48 DE50 DE52 EF05 FG18 GK12 HL04 HL08

Claims (3)

[Claims] The present invention detects the presence or absence of predetermined copyright management information of incoming data to be copied, and determines whether or not the incoming data can be copied based on the copyright management information. A digital data recording device comprising at least means for performing charging and an electronic wallet for performing the charging, wherein the means includes at least one of an ISRC code and copy management information in the copyright management information. Is determined based on the copy management information, and whether the charge is permitted or the charge amount is determined based on the copy management information. When the copy is permitted, the information of the copy history is stored as copy management information. A digital data recording device comprising means. 2. The method according to claim 1, further comprising the step of detecting presence or absence of predetermined copyright management information of the incoming data to be copied, determining whether or not the incoming data can be copied based on the copyright management information. A digital data recording device comprising at least means for performing charging and an electronic wallet for performing the charging, comprising a charging management table including at least an ISRC code and copy history information corresponding to the ISRC code in advance. Wherein the copy history information corresponding to the ISRC code in the copyright management information and the ISRC code in the charging management table is detected, and charging is performed according to the copy history information. Data recording device. 3. The digital data recording apparatus according to claim 1, further comprising means for generating a code corresponding to the ISRC code when at least the ISRC code is not added to the incoming data. apparatus.