JP2005209166A - Digital content data processing device and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To normally reproduce an edit file created from an original file when only the original file is selected from digital content data such as playing data used for an electronic instrument or a computer apparatus and transferred to another folder. <P>SOLUTION: This digital content data processing device having a function for editing an original file including digital content data to store it as an edit file in the same folder as that of the original file is so structured that, when movement of an original file was directed, all the edit files edited based on the original file to which movement is directed are retrieved to move the original file to which movement was directed; and all the retrieved edit files are moved to the same movement destination. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a digital content data processing apparatus and program having a function of copying / moving digital content data such as performance data used in electronic musical instruments and computer equipment.

  Conventionally, a file moving function is known in general-purpose computer equipment. This is to move the selected file to another designated folder or another storage medium. Basically, only the selected file is moved.

  On the other hand, performance data used in electronic musical instruments and the like is often protected with a predetermined file. For example, when a part of the original performance data file is edited and a new file (edit file) is created, the edit file is played back in the same folder in order to prevent the created edit file from leaking. File protection is implemented only when there is an original original file.

  However, when file protection is performed with the electronic musical instrument as described above, for example, when only the original file is selected and moved to another folder, the edit file that has been able to be played in the original folder cannot be played. There was a problem. In this case, it can not be said that the edit file is not handled properly, and there is a problem that it cannot be played back despite that.

  Even if only the original file is selected and moved to another folder for digital content data such as performance data used in an electronic musical instrument or a computer device, the edit file created from the original file is normally displayed. It is an object of the present invention to provide a digital content data processing apparatus and program which can be reproduced.

  In order to achieve this object, the present invention edits an original file including digital content data and saves the edited file as an edit file in a predetermined folder associated with the location where the original file is stored. In the data processing apparatus, when there is an instruction to copy the original file, all the edit files edited based on the original file instructed to copy are searched in the predetermined folder, and the original file instructed to be copied is searched. In addition to moving, all of the searched edit files are moved together. Instead of moving all the searched edit files, a part of the searched edit files may be moved together, and the edit files that have not been moved may be deleted. In this case, which edit file is to be moved is determined by automatically selecting an edit file arbitrarily selected by the user or a predetermined number of edit files from the searched files.

  Furthermore, when the copy destination of the original file instructed to copy is the same as (a) the folder in which the original file is stored, a copy of the original file is created by changing the file name in the folder, (B) If the folder is different from the folder in which the original file is stored, the original file and all the searched edit files may be moved to the copy destination folder. When the copy destination of the original file instructed to copy is the same as (a) the folder in which the original file is stored, the file name is changed to the folder and a copy of the original file is created. (B) If the original file is different from the folder in which the original file is stored, the original file is moved to the copy destination folder, and a part of the edited edit files are moved together. The edit file that has not been moved may be deleted.

  When an instruction to copy an edit file is received, the original file from which the edit file instructed to be copied is edited is searched in a predetermined folder associated with the folder in which the edit file is stored. The edit file edited based on the original file is searched in a predetermined folder associated with the folder in which the original file is stored, and the edit file instructed to be copied and the searched original file are searched. The file is moved, and all the searched edit files are moved to the same destination. Instead of moving all the searched edit files, a part of the searched edit files may be moved together, and the edit files that have not been moved may be deleted. The method for determining which file to move is the same as described above.

  According to the present invention, even when only the original file is selected and moved to another folder, the edit file created from the original file is moved along with the original file. Can be played. In other words, as long as the edit file is handled appropriately, it cannot be played back. Even when an edit file is selected and moved to another folder, the edit file can always be normally reproduced by moving the original file in the same manner.

  Hereinafter, an embodiment for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is a hardware configuration diagram of an electronic musical instrument to which the present invention is applied. The electronic musical instrument includes a CPU (Central Processing Unit) 101, a ROM (Read Only Memory) 102, a RAM (Random Access Memory) 103, an external recording device 104, an operator 105, a detection circuit 106, a display unit 107, a display circuit 108, A sound system 109, a sound source circuit 110, a communication interface (I / F) 112, and a communication bus 113 are provided.

  The CPU 101 is a processing device that controls the operation of the entire electronic musical instrument. The ROM 102 is a non-volatile memory that stores a startup routine at power-on, a BIOS (Basic Input / Output System) that controls low-level I / O processing, a control program executed by the CPU 101, and the like. The RAM 103 is a volatile memory used as various work memories. The external recording device 104 is, for example, a hard disk or a flash memory, and stores programs executed by the CPU 101 and various data. The operation element 105 is an operation element that is operated by the user to give various instructions to the electronic musical instrument. The operation of the operator 105 is detected by the detection circuit 106 and the detection result is sent to the CPU 101. The display unit 107 is a display that displays various types of information. The display circuit 108 displays given data on the display unit 107 based on an instruction from the CPU 101. The tone generator circuit 110 generates a musical sound signal based on an instruction from the CPU 101 and sends it to the sound system 109. The sound system 109 emits a musical sound based on the input musical sound waveform data. The communication I / F 112 is an interface for connecting various external devices 114.

  The external device 114 is a general-purpose computer (PC), for example. The external device 114 is a device that can be connected to the Internet, and can download a content file including performance data and the like via the Internet. The downloaded content file can be transferred from the external device 114 to the electronic musical instrument and stored in the external recording device 104. The electronic musical instrument can reproduce the performance data in the content file when a reproduction instruction is given by designating the content file. Further, the electronic musical instrument has a function of editing the digital content in the content file and saving it as an edit file when the content file is an original file.

  FIG. 2 shows the structure of the content file. The file name 201 includes a name and an extension. The extension is different for each file type. In particular, the extension of the original file is different from that of the edit file, and the extension for the original file and the extension for the edit file are defined in advance. Add the extension for the original file to the file name of all the original files, and add the extension for the edit file to the file name of all the edit files. As security data 202, a file flag, a reproduction permission flag, and a storage permission flag are held. The reproduction permission flag takes a value of 1 or any other value. When the reproduction permission flag is 1, reproduction is permitted. When the reproduction permission flag is other than 1, reproduction is not permitted. The save permission flag takes a value of 1 or any other value. When it is 1, it is permitted to edit and save, and when it is not 1, it is not permitted. The file flag takes a value of 1 or 0. When it is 1, it indicates that the file is an edit file, and when it is 0, it indicates that it is an original file. ID 203 is an ID that identifies the file. For example, in the case of a content file downloaded via the Internet, a unique ID is attached each time the content data is downloaded even if the content data is the same. In the present invention, the ID is used as data for recognizing a corresponding file group (original file and edit file created based on the original file). Specifically, a plurality of files having the same ID are recognized as corresponding file groups.

  The content file includes performance data, musical score data, moving image data, and the like as digital content data. The performance data is data for automatic performance expressed in, for example, MIDI format. The musical score data is display musical score data corresponding to the performance data. The moving image data is moving image data displayed during performance data execution.

  FIG. 3 shows a flow of a process for saving the data after the editing in the file editing process as shown in FIG. This process is performed when the user designates an original file (assuming that the save permission flag is 1), edits the digital content data, and gives an instruction to save the file, or when the user issues an edit file (save permission flag). Is specified, the digital content data is edited, and a file save instruction is issued. The contents of editing performed on the designated original file or edit file are recorded in a work memory area (edit area) for editing. In step 301, a copy of the original file of the edit source or a copy of the edit file of the edit source is made and written as a new edit file in the folder where the original file exists. In step 302, the editing contents recorded in the edit area are overwritten on the new edit file. Specifically, the content of editing is data representing the contents of changes, deletions or additions to the digital content data of the specified original file or edit file and the data in the new edit file. The recorded digital content data is reflected in the corresponding location data. In step 303, the file name extension of the new edit file is changed. If the file name of the file copied in step 301 (designated original file or designated edit file) is the original file, the name of the file name remains the same and the extension is the original file. If the copy source file is an edit file, the name of the file name is rewritten and the extension is left as it is. In addition, the storage permission flag in the new edit file is changed to 1, the file flag is changed to 1, and the process ends. Here, the ID in the new edit file holds the same content (content copied in step 301) as the copy source file (original file or edit file). The new edit file created in this way includes part of the file name, part of the security data (save permission flag and file flag) and part of the digital content (part of the edited digital content) from the editing source. Unlike the contents of the original file or edit file, the other contents are the same as the original file or edit file used as the editing source.

  FIG. 4 shows a flow of processing for reproducing the file of FIG. This process is activated when an instruction to start playback of a file selected by a predetermined operation is detected. In step 401, it is determined whether or not the selected file is an original file. This can be determined with reference to the file extension and file flag. If it is an original file, in step 402, reproduction of digital content data in the selected file is started. If it is an edit file, it is determined in step 403 whether or not the original file corresponding to the edit file is in the same folder. This is determined by reading a file in the same folder and determining whether there is a file having the same ID and file flag indicating the original file as the edit file. If the original file is in the same folder, the process proceeds to step 402 to start playback of the digital content of the edit file. If the original file is not in the same folder, the process ends without starting playback. Of course, when reproducing, it is confirmed that the reproduction permission flag is 1.

  FIG. 5 is a flowchart of processing started when the user selects one file and detects an instruction to copy the file. In step 501, security data is retrieved from the selected file. If there is no security data, the selected file is a normal file, so in step 503, the file is copied according to the instruction. If security data is detected, it is determined in step 504 whether the folder designated as the copy destination is the same as the folder of the selected file. If it is determined in step 505 that they are different from each other, in step 506, movement processing (FIG. 6) between different folders is performed. When a copy instruction is made between the same folders, in step 507, a copy of the selected file is made in the folder (the file name is changed according to a predetermined rule), and the file flag of the file created by the copy is set to 1. And

  FIG. 6 shows the flow of movement processing executed in step 506. In step 601, it is determined whether the file is an edit file by referring to the file flag of the selected file. If it is an original file, in step 605, an edit file corresponding to the selected file, that is, a file whose ID is the same as the selected original file and whose file flag indicates the edit file is searched in the same folder. Next, in step 606, all the detected edit files are moved to the designated folder, and the process proceeds to step 607.

  If it is determined in step 601 that the selected file is an edit file, in step 602, the original file corresponding to the selected edit file, that is, the file having the same ID as the selected edit file and the file flag indicating the original file is stored in the same folder. Search within. In step 603, an edit file corresponding to the original file detected in step 602, that is, an edit file other than the selected edit file having the same ID as the detected original file and a file flag indicating the edit file is stored in the same folder. Search for. In step 604, all edit files and original files detected in steps 602 and 603 are moved to the designated folder. Thereafter, the process proceeds to step 607. In step 607, the selected file is moved to the designated folder.

  The movement performed in step 604, step 606, and step 607 in FIG. 6 is to delete the file to be moved from the originally recorded folder (the folder before the movement) and move the file to the folder designated as the movement destination. Is to write.

  When FIG. 6 is activated, it is first determined whether the folder designated as the copy destination is the external recording device 104 (external recording medium such as smart media), and it is determined that the folder is the external recording device 104. In step 604, step 606, and step 607, when a file is moved, a unique value (ID or the like) assigned to the external recording device 104 designated as the movement destination is read out, and the unique value is used. The moving file is encrypted. Then, the encrypted file is moved to the designated folder (external recording device 104).

  Further, in the reproduction start process of FIG. 4, if the selected file is the encrypted file, the folder in which the selected file is recorded before executing step 402 of FIG. The unique value assigned to (the unique value assigned to the external recording device 104) is read, and the selected file (encrypted file) is decrypted using the unique value. When the read unique value is different from the unique value used for encryption, the encrypted file is encrypted so that it cannot be decrypted (the state of a reproducible file before encryption cannot be restored). In other words, the encrypted file cannot be decrypted unless it is recorded in the same external recording device 104 as when it was moved (encrypted).

  These encryption and decryption processes can prevent a file moved to the external recording device 104 from being illegally copied to another external recording device or a personal computer. .

  When the original file is moved, the edit file is also moved. However, when the edit file is moved, only the edit file may be moved so that the original file is not moved.

  In the above embodiment, the control program for realizing the processes of FIGS. 3 to 6 is stored in the ROM 102 and the control program on the ROM 102 is executed by the CPU 101. However, the control program is not stored in the ROM 102. In this case, the control program or data is stored in the HD or CD-ROM, and is read and executed in the RAM 103, or connected to the server computer via the communication network, and the control program or data is downloaded from the server computer. Thus, the CPU 101 may be caused to perform the same operation as when the control program and data are stored in the ROM 102.

  When the move of the original file is instructed to move to another folder, all the searched edit files are moved to the specified folder, but only a part of the searched edit files are specified. It is also possible to delete the remaining edit files that have been moved to the folder but not moved. Some of the edit files at this time are those selected by the user arbitrarily from the searched edit files, or automatically selected a predetermined number of edit files from the searched edit files, etc. do it.

  The recording position of the edit file is not limited to the same folder as the original file, but may be any position (folder) within the range where reproduction is permitted as defined by the security program. For example, there is a method in which an edit file can be played back even if it is recorded in a folder located in a lower hierarchy of the folder in which the original file is recorded. The present invention is also applicable to such a case, and when an original file or edit file is instructed to be moved, the original file or edit file corresponding to the moved file is searched. The target folder is not limited to the same folder as the file to be moved, but is all folders at positions (folders) within the range where reproduction is permitted as defined by the security program.

  The data for recognizing the corresponding file group is not limited to the ID, and may be in any form as long as the data can identify the correspondence. As another form, processing using a file name will be described. In this case, the file name of the original file is recorded in the security data of the edit file created based on the original file. When an edit file is created based on a certain original file, or when a new edit file is created based on the created edit file, the file name of the original file is changed in step 303 in FIG. Record in the security data of the edit file to be created. In step 602 of FIG. 6, a file having the file name of the original file recorded in the selected edit file is searched. In steps 603 and 605, the file name of the original file detected or selected is the security data. Search for edit files recorded in the. Thereby, the same effect as in the case of ID can be obtained.

Hardware configuration diagram of an electronic musical instrument to which the present invention is applied Performance data file configuration diagram Flowchart diagram showing the flow of edit processing (file saving) Flowchart diagram showing the flow of playback start processing Flowchart showing the flow of processing when a copy instruction is detected The flowchart figure which shows the flow of movement processing

Explanation of symbols

  DESCRIPTION OF SYMBOLS 101 ... CPU (Central Processing Unit), 102 ... ROM (Read Only Memory), 103 ... RAM (Random Access Memory), 104 ... External Recording Device, 105 ... Operator, 106 ... Detection Circuit, 107 ... Display Unit, 108 ... Display circuit 109... Sound system 110 110 Sound source circuit 112 Communication interface (I / F) 113 Communication bus 114 External device

Claims (8)

Means for editing an original file including digital content data and saving it as an edit file in a predetermined folder associated with a position where the original file is stored;
Means for receiving an instruction to copy the original file;
Means for searching all edit files edited based on the original file instructed for copying in the predetermined folder;
Writing means for moving the original file instructed for copying to the instructed copy destination and moving all the searched edit files together;
A digital content data processing apparatus comprising: Means for editing an original file including digital content data and saving it as an edit file in a predetermined folder associated with a position where the original file is stored;
Means for receiving an instruction to copy the original file;
Means for searching all edit files edited based on the original file instructed for copying in the predetermined folder;
Writing means for moving the original file instructed to copy to the instructed copy destination, moving part of the searched edit files together, and deleting the unedited edit files; ,
A digital content data processing apparatus comprising: The digital content data processing device according to claim 1, further comprising:
If the digital content data instructed to be reproduced is data in the original file, the digital content data is reproduced. If the digital content data instructed to be reproduced is data in the edit file, the edit file is A reproduction means for reproducing digital content data in the edit file is provided only when it is confirmed that the original file is stored in a predetermined folder associated with the position where the original file is stored. Digital content data processing apparatus. The digital content data processing device according to claim 1, further comprising:
Means for receiving an instruction to copy the edit file;
Means for searching for an original file from which the edit file instructed to be copied is edited in a predetermined folder in which the original file is stored, which is associated with a position where the edit file is stored. When,
Means for searching all edit files edited based on the searched original file in a predetermined folder associated with the folder in which the original file was stored;
The edit file instructed to be copied and the searched original file are moved to the specified copy destination, and among all the searched edit files,
(A) Move all edit files together, or
(B) means for moving together some edit files and deleting edit files that have not been moved;
A digital content data processing apparatus comprising: The digital content data processing apparatus according to claim 1,
The writing means includes
The copy destination of the original file instructed to copy is
(A) If it is the same as the folder where the original file is stored, change the file name to the folder and make a copy of the original file.
(B) If the original file is different from the folder in which the original file is stored, the digital content data is for transferring the original file and all the searched edit files to the copy destination folder. Processing equipment. The digital content data processing device according to claim 2,
The writing means includes
The copy destination of the original file instructed to copy is
(A) If it is the same as the folder where the original file is stored, change the file name to the folder and make a copy of the original file.
(B) If the original file is different from the folder in which the original file is stored, the original file is moved to the copy destination folder, and a part of the edited edit files are moved together. A digital content data processing apparatus for deleting an edit file that has not been moved. Computer
Means for editing an original file including digital content data and saving it as an edit file in a predetermined folder associated with a position where the original file is stored;
Means for receiving an instruction to copy the original file;
Means for searching all edit files edited based on the original file instructed for copying in the predetermined folder;
Writing means for moving the original file instructed for copying to the instructed copy destination and moving all the searched edit files together;
A digital content data processing program for causing a digital content data processing apparatus to function. Computer
Means for editing an original file including digital content data and saving it as an edit file in a predetermined folder associated with a position where the original file is stored;
Means for receiving an instruction to copy the original file;
Means for searching all edit files edited based on the original file instructed for copying in the predetermined folder;
Writing means for moving the original file instructed to copy to the instructed copy destination, moving part of the searched edit files together, and deleting the unedited edit files; ,
A digital content data processing program for causing a digital content data processing apparatus to function.

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