JP4845863B2 - Monitoring program and monitoring method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a music copy monitoring program or the like which can perform appropriate copy management also in personal computers. <P>SOLUTION: The copyright information transmitting means 24 in a music reproducing means 2 transmits the copyright information of the music content to be reproduced to the decision means 42 of the monitoring means 4 upon receiving a reproduction instruction. The decision means decides whether the received copyright information is "copy permission" or not. The copyright information control means 44 of the monitoring means usually gives "copy non-permission" instructions to a passing control means 62. When the decision means 42 receives a copyright information of "copy permission", it is so informed and gives a "copy permission" instruction to the passing control means. The passing control means controls the copyright information of the music content outputted from the music device 8, depending on the "copy permission" or "copy non-permission" instruction from the copyright information control means. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to duplication control in digital audio.

  In an audio device having a digital audio input / output terminal, copy control by SCMS (Serial Copy Management System) is required. In view of the fact that digital data does not deteriorate, the number of times of copying is limited when digitally copying. Copyright information is added to the music content, and the number of copies is controlled according to the content of the copyright information. For example, if the copyright information is “copy free”, it can be freely copied. If it is “copy prohibited”, control is performed so that if an attempt is made to duplicate the copy, the audio device determines and cannot execute the copy. If it is “copy once”, only one copy is allowed. When the original music content to be duplicated is “copy once”, the audio device permits the duplication and sets the copyright information of the duplicated music content to “copy prohibited” (for example, Patent Document 1). .

  As described above, as long as an audio device that is required to support SCMS is used, duplication is controlled mechanically and illegal duplication can be prevented.

  However, the personal computer (PC) is not sufficiently managed by the SCMS as described above. This is because replication on the network is a major problem in PCs, and management by SCMS has been relatively neglected.

  For this reason, even if SCMS is strictly realized in the corner audio device, there is a problem that if the digital audio output of the PC is used, copying is easily permitted. For example, even if the music content is “copy prohibited”, if the software in the PC does not manage the SCMS, it can be recorded and recorded in the PC or output from the PC to the outside. And will be able to replicate.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a music duplication monitoring program and the like that can solve the above-described problems and can perform appropriate duplication management even in a PC.

JP 2001-266546 A

  Some independent aspects of the music processing apparatus according to the present invention are shown below.

(1) A music processing apparatus according to the present invention is a music processing apparatus comprising (a) music playback means, (b) monitoring means, and (c) music device means,
(a) The music playback means comprises (a1) copyright information transmission means for receiving a music content playback command and transmitting the copyright information of the music content to the monitoring means,
(b) The monitoring means, (b1) When copyright information of the music content is sent from the music playback means, a judgment means for judging whether or not the copyright information indicates “duplicatable” And (b2) copyright information control means for giving a judgment result by the judgment means at predetermined intervals to the music device means,
(c) The music device means: (c1) In normal times, the copyright information control means gives “no copy” to the music device section having a digital output terminal at a predetermined interval longer than a predetermined interval at which the judgment result is given. If the copyright information control means gives "copying permission" before the long predetermined interval elapses, the music device unit is given "copying permission" and received from the music playback means. It is characterized by having passage control means for giving music content to the music device unit.

  Therefore, the music device means does not output “copyable” music data unless there is a monitoring means, so that the copyright management by the monitoring means can be reliably performed.

(2) In the music processing apparatus according to the present invention, when the determination means receives a reproduction command from the music reproduction means, the copyright information is acquired by transmitting a copyright information transmission request to the music reproduction means. It is a thing to do.

Therefore, it is not always necessary for the judging means to monitor the music reproducing means.

(3) A device driver program according to the present invention receives music content from a music playback program that receives a music content playback command and transmits copyright information of the music content to a monitoring program, and from the music playback program A device driver program that receives the determination result at predetermined intervals from a monitoring program that determines whether or not the copyright information indicates “copying permitted” when copyright information of the music content is sent. By computer
In normal times, the music device unit having a digital output terminal is given “non-replicatable” at a predetermined interval longer than the predetermined interval at which the monitoring program gives a judgment result, and the monitoring program When “copying is permitted” is given to the music device unit, “copying is allowed” is given to the music device unit, and the passage control means for giving the music device unit the music content received from the music playback program is realized. It is a program.

  Therefore, it is not always necessary for the judging means to monitor the music reproducing means.

(4) A music processing apparatus according to the present invention is a music processing apparatus comprising (b) monitoring means, (c) music device means, and (d) music recording means,
(b) The monitoring means (b1) determining means for determining whether or not the copyright information of the music content given to the digital input terminal of the music device unit from the music device means indicates “duplicatable” (B2) A data path command is given to the music device means at a predetermined interval if the judgment result by the judgment means is “duplicatable”, and if the judgment result by the judgment means is not “duplicatable” Music device control means for giving a data clear command,
(c) The music device means (c1) The music data given to the music device section having a digital input terminal at a predetermined interval longer than the predetermined interval at which the music device control means gives a command in normal times. If the music device control means gives a data path command before the long predetermined interval elapses, the music content received from the music device section is passed to the music recording means. With content passing means,
(d) The music recording means comprises (d1) a recording execution means for recording music content from the music device means.

  Therefore, the music device means does not give the music data to the music recording means unless there is a monitoring means, so that the copyright management by the monitoring means can be reliably performed.

(5) The device driver program according to the present invention provides the determination result from the monitoring program that determines whether or not the copyright information of the music content given to the digital input terminal of the music device unit indicates “duplicatable” A device driver program for receiving a data path command or a data clear command based on
In normal times, control is performed to clear the music data given to the music device unit having the digital input terminal at a predetermined interval longer than the predetermined interval given by the monitoring program, and the long predetermined interval has passed. If a data path command is given from the monitoring program before the recording , the music content passing means is made to pass the music content received from the music device section to the music recording means .

  Therefore, the music device means does not give the music data to the music recording means unless there is a monitoring means, so that the copyright management by the monitoring means can be reliably performed.

  In the present invention, the “music reproducing means” means a function having at least music data which is digital data to the music device means. In the embodiment, the music playback program 21 corresponds to this.

  “Music content” refers to music data as digital data. It is a concept that includes not only sampling data but also coded data. In the embodiment, the music data 27 corresponds to this.

  “Copyright information” means at least information that directly or indirectly indicates whether or not copying is permitted. In the embodiment, the copyright information shown in FIG. 8 corresponds to this.

  The “monitoring means” corresponds to the monitoring program 25 in the embodiment.

  “Replication permitted” indicates that copying is permitted, and “Replication not permitted” indicates that copying is not permitted. It is a concept that includes information that does not directly mention the presence or absence of duplication. In the embodiment, “original” of the generation information corresponds to “replicatable”, and “copy” corresponds to “replicatable”.

  In the embodiment, the “music device means” corresponds to the device driver 23.

  The “program” is a concept that includes not only a program that can be directly executed by the CPU, but also a source format program, a compressed program, an encrypted program, and the like.

BEST MODE FOR CARRYING OUT THE INVENTION

1. First embodiment
(1) Functional Block Diagram FIG. 1 shows a functional block diagram of a music processing apparatus according to an embodiment of the present invention. In this embodiment, a case will be described in which music data is output as digital data from a music processing apparatus to an external digital device.

In this embodiment, the music processing apparatus comprises music playback means 2, monitoring means 4, and music device means 6. In response to the reproduction command, the copyright information transmission unit 24 of the music reproduction unit 2 transmits the copyright information of the music content to be reproduced to the determination unit 42 of the monitoring unit 4. The determination means 42 determines whether or not the received copyright information is “replicatable”. The copyright information control unit 44 of the monitoring unit 4 gives the determination result of the determination unit 42 to the passage control unit 62 of the music device unit 6.

The passage control means 62 of the music device means 6 gives an instruction of “no copy” to the music device unit 8 in normal times. However, when the copyright information “copying permitted” is received from the copyright information control means 44 , a notification to that effect is received and a command “copying allowed” is given to the music device unit 8 .

  The playback control unit 22 of the music playback unit 2 receives the notification of the determination end of the determination unit 42 and provides the music content to the passage control unit 62 of the music device unit 6 in order to adjust the playback timing. Thereby, the passage control means 62 gives the music content to the music device unit 8, and the music device unit 8 outputs this from the digital terminal 82 to the outside. At this time, the passage control unit 62 controls the copyright information of the music content output from the music device unit 8 in response to the “copy permitted” and “copy not permitted” commands from the copyright information control unit 44. That is, when the instruction of “copying is permitted” is given from the copyright information control means 44, the copyright information of the music content output from the music device unit 8 is set to “copying is allowed”. “Replication is impossible”.

  When a reproduction stop command is given, the reproduction stop command transfer means 26 gives this to the copyright information control means 44. Upon receiving the reproduction stop command, the copyright information control unit 44 controls the passage control unit 62 to “cannot copy”.

  Therefore, it is possible to realize replication control in the audio device connected to the digital terminal 82.

(2) Hardware Configuration FIG. 2 shows a hardware configuration of a music processing apparatus according to an embodiment of the present invention. A memory 3, a display 5, a sound card 7, a hard disk 9, a CD-ROM 11, and a mouse / keyboard 13 are connected to the CPU 1. The memory 3 is used as a work area for the CPU 1.

  The hard disk 9 stores an operating system (OS) 19 such as WINDOWS (trademark), a music playback program 21, a device driver 23, a monitoring program 25, music data 27, and the like. The OS 19, the music playback program 21, the device driver 23, and the monitoring program 25 are those installed on the CD-ROM 29 via the CD-ROM driver 11. The music reproduction program 21 controls the reproduction of recorded music data 27 and music data given from the outside in cooperation with the OS 19. The device driver 23 controls the sound card 7 and processes the music data 27. The mouse / keyboard 13 receives user operation input and the like.

  FIG. 3 shows a block diagram of the sound card 7. The interface 71 mediates exchange with the bus line. The control unit 73 controls the entire sound card 7. An output from the control unit 73 is given to the analog output terminal 15 via the D / A conversion circuit 75. The input from the analog input terminal 16 is given to the control unit 73 via the A / D conversion circuit 77. A digital output terminal 17 and a digital input terminal 18 are connected to the control unit 73.

(3) Process Flow In this embodiment, the music data 27 of the hard disk 9 is reproduced by the music generation program 21 and output from the digital output terminal 17 of the sound card 7 to be external equipment (not shown) such as an MD device. The case of digital recording will be described below.

  FIG. 4 shows a flowchart of the music playback program 21, the monitoring program 25, and the device driver 23. FIG. 5 shows a flowchart of the music playback program 21, FIG. 6 shows a flowchart of the monitoring program 25, and FIG. 7 shows a flowchart of the device driver 23. In the following, for convenience of explanation, it is described that the program is actively processing, but the CPU 1 is executing the process substantially according to the program.

  It is assumed that the user operates the mouse / keyboard 13 to specify the music data 27 and instruct playback by the music playback program 21. Receiving this reproduction instruction, the music reproduction program 21 transmits this to the monitoring program 25 ((1) in FIG. 4, step S1 in FIG. 5). When the monitoring program 25 receives the instruction to reproduce (or transfers the instruction to reproduce) (FIG. 6, step S21), it sends a copyright information acquisition command to the music reproducing program 21 ((( 2) Step S22 in FIG.

  Upon receiving the copyright information acquisition command, the music playback program 21 reads the copyright information attached to the music data 27 to be played back and transmits it to the monitoring program 25 ((3) in FIG. 4). Step S3 in FIG. FIG. 8 shows the configuration of the music data 27. Music data is divided into copyright information and content data. The content data represents music as digital data. As shown in detail in FIG. 8, the copyright information includes a copyright bit, category information, and generation bits. As for the copyright bit, “1” indicates copyright, “0” indicates no copyright, and “0” indicates that copying is free. The category information indicates the type of original music data. For example, “G0011001” indicates a DVD, and “G0000001” indicates a CD. The generation bit G indicates whether it is an original or a copy. For example, when the category information is DVD, if the generation bit G is “0”, it indicates the original, and if it is “1”, it indicates the first generation copy. In a recording device with copyright management, digital recording is not permitted unless the generation information is original.

  When the copyright information prohibits copying, the monitoring program 25 transmits a copy prohibiting command to the device driver 23 (step S26 in FIG. 6, (4) in FIG. 4). If copying is permitted, a copy permission command is transmitted once to the device driver 23 (step S27 in FIG. 6, (4) in FIG. 4). The monitoring program 25 determines that copying is not prohibited when the copyright bit is “0”, the copyright bit is “1”, and the generation bit indicates the original. Upon receiving the command, the device driver 23 sets the sound card 7 according to the content of the command.

  If copying is prohibited, the device driver 23 sets copy prohibition for the sound card 7 (FIG. 7, step S44). That is, the control unit 73 of the sound card 7 sets the generation bit in the copyright information of the music data output from the terminal 17 as a copy. Accordingly, the recording device connected to the terminal 17 cannot perform digital recording.

  If copying is permitted, the device driver 23 sets copy permission once for the sound card 7 (FIG. 7, step S45). That is, the control unit 73 of the sound card 7 sets the generation bit in the copyright information of the music data output from the terminal 17 to the original. Therefore, the recording device connected to the terminal 17 can perform digital recording.

  The device driver 23 in this embodiment outputs copy prohibition to the sound card 7 every 5 seconds (first predetermined interval) when there is no input from the monitoring program 25 (FIG. 7 steps S47, S48). Therefore, copying is possible only while the monitoring program 25 continues to output copying permission once, and if this is lost, copying is automatically prohibited.

  When the monitoring program 25 receives the copyright information (step S23 in FIG. 6), a confirmation signal (ACK command) is transmitted to the music playback program 21 in parallel with the above ((5) in FIG. 4, FIG. 6). Step S24). Receiving this, the music reproduction program 21 reads the music data 27 from the hard disk 9 and gives it to the device driver 23 to reproduce the music (step S5).

  At this time, the control unit 73 of the sound card 7 attaches the copyright information determined by the above setting, and digitally outputs the music data from the output terminal 17.

  The monitoring program 25 requests the device driver 23 for copyright information from the music playback program 21 at a cycle shorter than the first predetermined interval described above ((2) 'in FIG. 4, step in FIG. 6). (S30) Upon receiving the copyright information from the music playback program 21 ((3) 'in FIG. 4, step S31 in FIG. 6), step S25 and subsequent steps are repeated. That is, the setting based on the result determined in step S25 is output again at a cycle shorter than the first predetermined interval ((6) (7) (8) in FIG. 4). As a result, if the music data can be copied, the setting of the copy once in the sound card 7 is maintained.

  Next, when the user operates the mouse / keyboard 13 to input playback stop, the music playback program 21 stops playback of music data. At the same time, the monitoring program 25 is notified that the reproduction has been stopped (or the reproduction stop signal is transferred) ((9) in FIG. 4, step S9 in FIG. 5). Receiving this, the monitoring program 25 sets copy prohibition to the device driver 23 ((10) in FIG. 4, step S29 in FIG. 6).

As described above, it is possible to output digital data on a PC while performing copyright management.

2. Second embodiment
(1) Functional Block Diagram FIG. 9 shows a functional block diagram of a music processing apparatus according to another embodiment of the present invention. In this embodiment, a case will be described in which music data is received as digital data from an external digital device and is digitally recorded by a music processing apparatus.

  In this embodiment, the music processing apparatus comprises music recording means 100, monitoring means 104, and music device means 106.

  Digital music data given from the input terminal 160 is given to the music device means 106 via the music device unit 108. The passage control means 140 of the music device means 106 gives at least copyright information of the given music data to the judgment means 120 of the monitoring means 104. The judging means 120 receives the copyright information and judges whether or not the music data can be copied. When it is determined that copying is possible, the music device control unit 122 controls the passage control unit 140 to provide music data to the music recording unit 100. If it is determined that copying is not possible, the passage control unit 140 is controlled so that the music data is not given to the music recording unit 100.

  Therefore, according to the copyright information, it is possible to control whether or not the music data is given to the recording execution unit 110 of the music recording unit 100 and to control copying.

(2) Hardware configuration The hardware configuration is the same as in FIG. In this embodiment, a music recording program 29 is recorded on the hard disk 9.

(3) Process Flow FIG. 10 shows a flowchart of the music recording program 29, the monitoring program 25, and the device driver 23. FIG. 11 shows a flowchart of the monitoring program. The flowchart of the device driver 23 is as shown in FIG.

  Also in this embodiment, when there is no data transmission from the monitoring program 25, the device driver 23 outputs the input data clear setting to the sound card 7 at intervals of 5 seconds (first predetermined interval).

  The monitoring program 25 always inquires of the device driver 23 whether or not music data is input to the digital input terminal 18 of the sound card 7 at predetermined intervals ((1) in FIG. 10, FIG. 11). Step S61). In this embodiment, a copyright information request signal is also sent together with the presence or absence of input.

  When there is a data input at the input terminal 18, the control unit 73 of the sound card 7 performs clock recovery, so that it is possible to determine whether or not there is an input depending on whether or not the clock is locked.

  The device driver 23 that has received the request returns that information if there is no input of music data (FIG. 7, step S46). The monitoring program 25 that has received this (FIG. 11, step S62) terminates the current process because there is no change, and repeats step S61 and subsequent steps again.

  When the music data is input, the copyright information of the input music data is transmitted from the device driver 23 (FIG. 7, step S46, FIG. 11, step S62). In response to this, the monitoring program 25 gives a data clear command to the device driver 23 if the copyright information is copy-prohibited (that is, the copyright is present and the generation information is copied) ((( 4) Step S65 in FIG. In response to this, the device driver 23 clears the music data given to the sound card 7. Therefore, the music data is not given to the music recording program 29 and is not duplicated. The above process is repeated.

  If the copyright information can be copied (that is, if there is no copyright or if the copyright information and the generation information are original), a data path command is given to the device driver 23 ((9 in FIG. 10). ), Step S66 of FIG. In response to this, the device driver 23 controls the control unit 73 of the sound card 7 to provide the input music data to the music recording program 29. Therefore, the music data is given to the music recording program 29 and copied. At this time, the monitoring program 25 controls the device driver 23 so that the generation information of the copyright information of the music data given to the music recording program 29 is the original.

  The monitoring program 25 inquires the device driver 23 about copyright information at intervals shorter than the first predetermined interval, and repeats the above processing. Therefore, if the copyright information of the music data becomes uncopiable halfway, the music data is not given to the music recording program 29.

  As described above, it is possible to record digital data on a PC while performing copyright management.

  In the above embodiment, when it is determined that copying is impossible, no music data is given to the recording program 29. However, if the recording program 29 performs copyright processing, the generation information may be given as a copy.

3. Other Embodiments In the above embodiment, the first embodiment and the second embodiment have been described independently. However, you may implement | achieve as a monitoring program which has the function of both the monitoring program 25 in 1st Embodiment, and the monitoring program 25 in 2nd Embodiment.

  Further, in the above embodiment, the case where it is realized by one PC has been described. However, as shown in FIG. 12A, the monitoring program 25 and music data 27 may be recorded in the server device, and the music playback program 21 (and device driver 23) may be recorded in each terminal device. In this case, copyright management can be realized without placing the monitoring program 25 in each terminal device. As shown in FIG. 12B, the music data 27 may be placed on individual terminal devices.

  Further, although FIG. 12 has been described assuming a LAN, this may be realized by the Internet.

  In the above-described embodiment, when a reproduction command is received from the music reproduction program 21, the monitoring program 25 issues a copyright information transmission request. However, if the monitoring program 25 constantly monitors the music playback program 21 and determines whether or not a playback command has been received, the above processing is unnecessary.

  In the first and second embodiments, copyright information of music data is monitored at predetermined intervals. However, once copyright information is acquired, whether or not copying is possible is controlled based on the first acquired copyright information until a playback stop command is given or no external music data is input. You may do it.

It is a functional block diagram of the music processing apparatus by 1st embodiment. It is a figure which shows a hardware configuration. 2 is a block diagram of a sound card 7. FIG. 4 is a flowchart of a music playback program 21, a monitoring program 25, and a device driver 23. 4 is a flowchart of a music playback program 21. 7 is a flowchart of a monitoring program 25. 4 is a flowchart of a device driver 23. It is a figure which shows the structure of music data. It is a functional block diagram of the music processing apparatus by 2nd embodiment. 4 is a flowchart of a music recording program 29, a monitoring program 25, and a device driver 23. 7 is a flowchart of a monitoring program 25. It is a figure for demonstrating the music processing apparatus by other embodiment.

Explanation of symbols

2 ... Music generation means 4 ... Monitoring means 6 ... Music device means 22 ... Playback control means 24 ... Copyright information transmission means 26 ... Playback stop command transfer means 42 ... Judgment Means 44 ... Copyright information control means 62 ... Pass control means

Claims (5)

A music processing apparatus comprising (a) music playback means, (b) monitoring means, and (c) music device means,
(a) The music playback means includes:
(a1) comprising a copyright information transmitting means for receiving a music content reproduction command and transmitting the copyright information of the music content to the monitoring means;
(b) The monitoring means includes
(b1) When the copyright information of the music content is sent from the music playback means, a judgment means for judging whether or not the copyright information indicates “copying permitted”;
(b2) a copyright information control means for giving a determination result by the determination means to the music device means at predetermined intervals;
(c) The music device means is
(c1) During normal times, the copyright information control means is configured to output “non-replicatable” to a music device unit having a digital output terminal at a predetermined interval longer than a predetermined interval at which a judgment result is given. If “copying permitted” is given from the copyright information control means before a long predetermined interval elapses, the music device unit is given “copying allowed” instead of the “copying impossible” and the music playback A music processing apparatus comprising passage control means for giving the music content received from the means to the music device section. The music processing apparatus according to claim 1, wherein
The music processing characterized in that the determination means acquires copyright information by transmitting a copyright information transmission request to the music playback means when a playback command is sent from the music playback means. apparatus. Upon receiving a music content playback command, the music content is received from a music playback program that transmits copyright information of the music content to the monitoring program, and the copyright information of the music content is sent from the music playback program. And a device driver program for receiving the determination result at a predetermined interval from a monitoring program for determining whether or not the copyright information indicates “duplicatable”, and a device for realizing the following functions by a computer Driver program.
In normal times, the copyright information control means is configured to output “non-replicatable” to a music device unit having a digital output terminal at a predetermined interval longer than a predetermined interval at which a judgment result is given. If “copying permitted” is given from the copyright information control means before the time elapses, the music device unit is given “copying allowed” instead of the “copying impossible” and received from the music playback means. Passing control means for supplying the music content to the music device unit. A music processing apparatus comprising (b) monitoring means, (c) music device means, and (d) music recording means,
(b) The monitoring means includes
(b1) From the music device means, a judgment means for judging whether or not the copyright information of the music content given to the digital input terminal of the music device section indicates “duplicatable”;
(b2) A data path command is given to the music device means at a predetermined interval if the judgment result by the judgment means is “duplicatable”, and data clear is given if the judgment result by the judgment means is not “duplicatable”. Music device control means for giving a command,
(c) The music device means is
(c1) Normally, the music device control means is configured to clear the music data given to the music device unit having a digital input terminal at a predetermined interval longer than the predetermined interval at which the command is given , When a data path command is given from the music device control means before a long predetermined interval elapses, the music content received from the music device section is passed through the music recording means instead of clearing the music data. With content passing means,
(d) The music recording means is
(d1) A music processing apparatus comprising recording execution means for recording music content from the music device means. A data path command or a data clear command based on the determination result is sent at a predetermined interval from a monitoring program that determines whether the copyright information of the music content given to the digital input terminal of the music device unit indicates “duplicatable” A device driver program that is received by the computer and for realizing the following functions by a computer.
In normal operation, the music device control means is configured to clear music data given to the music device unit having a digital input terminal at a predetermined interval longer than the predetermined interval at which the command is given , and the long predetermined interval. If a data path command is given from the music device control means before the music has passed, the music content passing means for passing the music content received from the music device section to the music recording means instead of clearing the music data .

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