JP2006190385A - Data reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data reproducing device which can improve users' operations when reproducing actual data such as audio data. <P>SOLUTION: In the data reproducing device, a compressed music memory device 2 stores audio files including compressed audio data and play list files including the list data indicating the reproduction orders of the audio files with the file specifying information to specify the audio file by using a folder capable of forming a multilayered structure. When analyzing and displaying the hierarchical structure of the compressed music memory device 2, it displays the play list files as the folder stored in the folder where the play list files are stored. When a folder corresponding to a play list file is selected, the audio files are reproduced sequentially as specified by the list data in the play list file. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a data reproducing apparatus that reproduces actual data of a data file from a recording medium on which a number of data files including actual data such as audio data are recorded, according to a user's selection.

  In recent years, audio data recorded on a CD (compact disc), for example, is compressed and recorded as an audio file on a hard disk, which is a large-capacity recording medium, and the audio file selected by the user is read from the recording medium. Data reproducing apparatuses called so-called compressed audio compatible players configured to be able to be reproduced have become widespread.

  In such a data reproducing apparatus, since audio data is compressed and recorded as an audio file on a large-capacity hard disk, a large number of audio data recorded on a plurality of CDs can be recorded. As a result, even if the music that the user wants to listen to is recorded on a different CD, the user does not need to perform the troublesome task of exchanging the CD for each music if the data reproducing apparatus is used.

  In this data reproducing apparatus, in order to manage a large number of audio files, audio files are recorded on a recording medium using a folder in which the files can be recorded in a hierarchical structure. In one folder, for example, all the songs recorded on one CD (sometimes called an album), a plurality of songs of a specific artist (performer), or a plurality of songs that the user likes are recorded. Has been.

  FIG. 10 is a conceptual diagram showing a recording state of an audio file on the recording medium. When the hard disk (HDD) 51 as a recording medium is regarded as one folder, one or a plurality of folders 52, 53,... Corresponding to predetermined classification items such as albums and artists are stored in this folder. In each folder 52, 53,..., One or a plurality of folders 52A, 52B,... 53A, 53B,. For example, folders 52A and 52B for each album such as album A and album B are stored in the folder 52 of the classification item “album”, and artists A and 52 are stored in the folder 53 of the classification item “artist”. Like artist B, folders 53A and 53B for each artist are stored. For example, the folder 52A of the album A stores audio files FA to FD including audio data. A plurality of audio files are also stored in folders 52A, 53A, and 53B of album B, artist A, and artist B, respectively. An apparatus that records an audio file in such a format on a recording medium is disclosed in Patent Document 1, for example.

  Since the folder and the audio file can be stored together in the folder, the audio file is stored in the same hierarchy as the folders 52 and 53 of the classification items “album” and “artist”, or the album A The audio file can be stored in the same hierarchy as the folders 52A and 52B of the album B.

In addition, according to the playlist file created in advance by the user, the data playback device described above plays back the music selected by the user from a plurality of music (audio files) recorded on the recording medium in the order specified by the user. Some have a so-called playlist reproduction function. The playlist file used in this playlist playback function is a file created by the user using a personal computer or the like, and this playlist file is also stored in a predetermined location on the recording medium on which the audio file is recorded. Stored. The playlist file includes list data indicating the reproduction order of the audio file using file designation information for designating the audio file to be reproduced. As the file designation information, for example, address information indicating the location (address) where the audio file is recorded on the recording medium is used.

  When an audio file is played back by the above-described data playback device, the user operates the operation unit included in the data playback device to select the normal playback mode or the playlist playback mode. When the normal reproduction mode is selected, a graphic representing a folder and a name (hereinafter referred to as a folder icon) assigned to the folder are displayed on the screen of the display unit included in the data reproduction apparatus. The displayed folder icon can be changed by performing an up / down operation. Further, when an operation for opening the displayed folder is performed, a folder icon representing a folder stored in the folder, a graphic representing an audio file, and a name given to the file (hereinafter referred to as a file icon) Is displayed. The folder icon and the file folder displayed here can be changed by performing an up / down key operation in the same manner as described above.

  When the user performs a selection operation while the folder icon or file icon to be reproduced is displayed on the screen of the display unit, the folder or file to be reproduced is selected. Thereafter, when the user performs a playback operation, if a folder is selected, a plurality of audio files stored in the folder are played in a predetermined order, and if a file is selected, the selected audio file is played. .

On the other hand, when the playlist playback mode is selected, a file icon representing a playlist file is displayed on the screen of the display unit. When a plurality of playlist files are stored, the displayed file icon can be changed by performing the up / down key operation. When the user performs a selection operation while the file icon of the playlist to be reproduced is displayed on the screen of the display unit, the playlist to be reproduced is selected. Thereafter, when the user performs a reproduction operation, the audio file is reproduced according to the selected playlist.
Japanese Patent Laying-Open No. 2004-39113 (page 4, FIG. 11)

  In the data playback apparatus having the playlist playback function described above, the playlist file and the audio file are managed separately, and the playlist file cannot be selected in the normal playback mode, and in the playlist playback mode. A folder or audio file cannot be selected. Therefore, the user needs to perform an operation for switching between the playlist reproduction mode and the normal reproduction mode, and there is a problem that the operation for reproduction becomes complicated.

  Further, since the playlist file is a data file, the conventional data reproducing apparatus is not configured to check the data of the playlist file. Therefore, there is a problem that what the music (audio file) specified in the playlist file is is not known unless the playlist is selected and actually reproduced. Further, when a plurality of playlist files are stored, the playlist file may be selected by mistake.

An object of the present invention is to provide a data reproducing apparatus capable of improving user operability when reproducing actual data such as audio data.

The present invention provides a multi-level hierarchical structure of a data file including actual data to be reproduced and a list file including list data indicating the reproduction order of the actual data using file designation information for designating the data file. In a data reproducing apparatus for reproducing actual data from a recording medium recorded using a folder that can constitute
Analyzing means for analyzing the hierarchical structure of folders and files in the recording medium;
Based on the analysis result obtained by the analysis means, display means for displaying the folder and file hierarchy structure so as to be visible,
Selecting means for selecting a folder or file from the hierarchical structure displayed on the display means;
When the folder is selected by the selection unit, the actual data of the data file stored in the folder is reproduced, and when the data file is selected, the reproduction unit reproduces the actual data of the data file,
When displaying the list file, the display means displays the list file as a folder stored in a folder in which the list file is stored,
When the folder corresponding to the list file is selected, the reproducing means reproduces the actual data of the data file according to the list data of the list file.

Further, the present invention provides the above data reproducing apparatus,
Ranking means for ranking folders, data files and list files based on the analysis result of the analyzing means;
A rank shift means for instructing a shift to a higher or lower rank of the folder, data file and list file to be displayed;
When the display unit is instructed to shift to a higher or lower level, the display unit changes a folder, a data file, and a list file that are visibly displayed according to the rank assigned by the ranking unit. A data reproducing apparatus characterized by the above.

Further, the present invention provides the above data reproducing apparatus,
The display means displays the data file stored in the folder together with the folder, and further includes file designation information included in the list data of the list file together with the folder corresponding to the list file in the list file. Display as a data file stored in the corresponding folder,
The reproduction means reproduces actual data of the data file designated by the file designation information when the data file corresponding to the file designation information is selected by the selection means.

Further, the present invention provides the above data reproducing apparatus,
The display means displays a normal folder used in a hierarchical structure and a list folder displayed as a folder corresponding to the list file in different display forms.

Further, the present invention provides the above data reproducing apparatus,
The display means can switch between an overall display mode for displaying the entire hierarchical structure of folders and files at once and an individual display mode for individually displaying folders and files.

Further, the present invention provides the above data reproducing apparatus,
The display means displays all normal folders and list folders contained in the recording medium as equivalent folders, ignoring the hierarchical structure of the folders.

Further, the present invention provides the above data reproducing apparatus,
The display means displays all normal folders and list folders included in the recording medium as a comparable folder ignoring the hierarchical structure of the folder, and a hierarchical display mode for displaying according to the hierarchical structure of the folder. Is switchable.

Further, the present invention provides the above data reproducing apparatus,
When the display means ignores the hierarchical structure of the folders and displays them as equivalent folders, the normal folder priority display mode that preferentially displays normal folders and the list folder priority display mode that preferentially displays list folders And can be switched.

  According to the present invention, when the hierarchical structure of folders and files is displayed in a visible manner based on the analysis result obtained by the analysis means, the list file is a folder stored in the folder in which the list file is stored. Is displayed. Thus, if a folder is selected from the displayed hierarchical structure using the selection means, the original folder or list file can be selected. When the original folder is selected, the actual data of the data file stored in the folder is reproduced by the reproducing means. When a list file is selected, the actual data of the data file is reproduced by the reproducing means according to the list data of the list file.

  Since the list file is handled in the same way as a folder and the list file is displayed as a folder together with the original folder, the user can select the list file in the same way as the folder using the selection means. It is easy to move between folders and list files in a hierarchical structure in the medium. This eliminates the need for a conventional mode switching operation when switching between folder reproduction and list file reproduction, and improves operability.

  According to the present invention, when the hierarchical structure of folders and files is displayed, the folders, data files, and list files are displayed according to the order assigned by the ranking means. For example, when a folder or file of a certain order is displayed, if a higher-order migration is instructed, a higher-order folder or file is displayed than the currently displayed folder or file, and a lower-order migration is instructed. Then, a folder or file lower than the currently displayed folder or file is displayed. The rank transition means for instructing the shift to a higher rank or lower rank can be realized by, for example, an up / down switch. Therefore, if the user operates a rank transition means such as an up / down switch that is simpler to operate than a pointing device such as a mouse, the display of a folder or file can be changed. As described above, since the operation of the order shifting means is simple, for example, the operation can be performed even while the driver of the vehicle is driving. Therefore, the data reproducing apparatus of the present invention is practical as an in-vehicle data reproducing apparatus. .

Further, according to the present invention, when the file designation information in the list data in the list file is handled in the same way as the data file in the folder, and the folder corresponding to the list file is displayed, the file in the list data in the list file is displayed. The specified information is displayed in the same way as the data files in the folder. Therefore, the user can use the selection means to select file designation information in the list data in the list file by the same selection operation as selecting a data file in the folder. As a result, the user can see and recognize the file designation information in the list data in the list file, so that the operability when selecting the list file can be improved. Further, since the data file to be reproduced can be known without actually performing the reproduction by the list file, it is possible to select a desired list file while suppressing the erroneous selection of the list file.

  According to the present invention, the normal folder and the list folder displayed as a folder corresponding to the list file are displayed in different display forms. The different display forms are, for example, changing colors and shapes. As a result, the user can select the normal folder or the list folder (list file), or the data file stored in the normal folder or the file designation information in the list file. It is possible to easily distinguish the corresponding data file.

  According to the present invention, since the entire display mode and the individual display mode can be selected as the display mode of the folder, it becomes possible to select the user's favorite display mode, and the operation when selecting the folder And convenience can be improved. In the whole display mode, the folder and the list file are displayed at the same time, so that the hierarchical structure in the recording medium can be easily grasped. On the other hand, in the individual display mode, since folders and files can be selected while being confirmed one by one, occurrence of erroneous selection of folders and files can be suppressed.

  According to the present invention, all normal folders and list folders are displayed as equivalent folders. As a result, the user can easily select a desired normal folder or list folder (list file), and the operability and convenience when selecting a folder can be improved.

  According to the present invention, since the equality display mode and the hierarchical display mode can be selected as the display mode of the folder, the user can select the preferred display mode, and the operation when selecting the folder And convenience can be improved.

  According to the present invention, the list folder priority display mode is used when selecting a list folder (list file), and the normal folder priority display mode is used when selecting a normal folder. It can be done quickly and easily. In particular, selection when the list folder or normal folder to be selected is stored at a deep position in the hierarchical structure is quick and easy.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a configuration diagram showing a schematic configuration of a data reproducing apparatus 1 according to the first embodiment of the present invention. The data reproduction device 1 is, for example, a player that supports compressed audio, and is a device that reproduces an audio file recorded in the compressed music storage device 2, and audibly outputs it from the speaker 3. The audio file is a data file including compressed data obtained by compressing audio data and identification information such as a music title and a player name of the audio data.

  The operation unit 4 serving as a selection unit is operated by a user to operate the data reproducing apparatus 1 and includes various operation buttons. Various instruction signals are output when the user operates the operation buttons and the like of the operation unit 4. The instruction signal from the operation unit 4 is given to the system controller 5 as analysis means. The system controller 5 controls the operation of the data reproducing device 1 in accordance with an instruction signal from the operation unit 4.

  The display unit 6 that is a display means includes a display screen, and displays a predetermined image on the display screen in accordance with a display control signal from the system controller 5. On the display unit 6, the operation content in the operation unit 4, the operation state of the data reproducing device 1, and the like are displayed. The compressed music storage device 2 is constituted by a hard disk drive, for example, and stores an audio file on a hard disk as a recording medium. The audio file is recorded using folders that can form a hierarchical structure in multiple stages, and an audio file designated in accordance with a control signal from the system controller 5 is output to the decoder 7.

  Based on the control signal from the system controller 5, the decoder 7 decompresses the compressed data in the audio file given from the compressed music storage device 2, restores it to an acoustic signal, and outputs it to the amplifier 8. The amplifier 8 amplifies the input acoustic signal and outputs it to the speaker 3. The speaker 3 sonicates a given acoustic signal and outputs it. The decoder 7, the amplifier 8, and the speaker 3 correspond to the reproducing means.

  FIG. 2 is a structural diagram showing the file recording structure of the hard disk in the compressed music storage device 2. If the hard disk is a root folder FR, an audio file f1, folders F1 and F3, and a playlist file P1 are recorded in the root folder FR. In the folder F1, an audio file f2, a folder F2, and a playlist file P2 are stored. An audio file f3 is stored in the folder F2. In addition, an audio file f4 and a folder F4 are stored in the folder F3. An audio file f5 is stored in the folder F4.

  Here, the playlist files P1 and P2 are data files including list data indicating the reproduction order of audio files using file designation information for designating audio files recorded in the hard disk. As the file designation information, address data indicating the location (address) where the audio file is recorded in the hard disk is used.

  FIG. 3 is a flowchart for explaining a processing procedure in the data reproducing apparatus 1. The system controller 5 starts processing when the power of the data reproducing apparatus 1 is turned on or when a data file is written, erased, moved, or the like to the compressed music storage apparatus 2.

  In step S1, the recorded contents of the hard disk in the compressed music storage device 2 are analyzed. In the file recording structure shown in FIG. 2, the hard disk (ROOT) is set as one virtual folder, and the presence / absence of audio files, folders, and playlist files stored in the virtual folder is checked. Recognize the name. If a folder is stored, the presence / absence of an audio file, folder, or playlist file stored in the folder is checked. If the folder is stored, the name is recognized. Thereafter, the same processing is performed on the lower layer folder, the hierarchical structure of the folder is analyzed, and the analysis result is stored.

In step S2, the folder display arrangement table 10 is created based on the analysis result obtained in step S1. The folder display arrangement table 10 is a table used in a folder display / selection mode, which will be described later, and includes a number indicating a rank and a folder name or playlist name as shown in FIG. When an audio file or a playlist file is stored on the hard disk (ROOT), the hard disk is used as a virtual folder. One folder is assumed. No. No. 1 is the first folder stored in 1 folder. 2 folders, no. 2 for the first folder stored in folder 2. 3 folders, no. No. 3 is the first folder stored in the folder. The process of making four folders is repeated in order, and the ranking is given. When a plurality of folders are stored in the same folder, the order is determined according to a predetermined rule, for example, ascending order of ASCII codes based on the folder name. When folders and playlist files are stored in the same folder, the playlist files are ranked after prioritizing the folders. When a plurality of playlist files are stored in the same folder, the rank is determined in ascending order of ASCII codes based on the playlist file name.

  If the file is stored in the hierarchical structure shown in FIG. One folder. No. Since the folders F1 and F3 and the playlist file P1 are stored in one folder, the first folder F1 is designated as No. 1. Two folders are assumed. No. Since the folder F2 and the playlist file P2 are stored in the folder F1, which is the second folder, the folder F2 is No. Three folders are assumed. No. Since the folder F2 is not stored in the folder F2, which is the third folder, the playlist file P2 is changed to No. There are 4 folders. This completes the ranking of the folders and playlist files in the folder F1.

  Subsequently, the remaining folders F3 are ranked. First, the folder F3 is No. There are 5 folders. And No. Since the folder F4 is stored in the 5th folder, the folder F4 is No. There are 6 folders. This completes the ranking of the folders and playlist files stored in the folders F1 and F3. Finally, the playlist files stored in the root folder are ranked. In this case, only the playlist file P1 is stored in the root folder. 7 folders. Thus, the folder display arrangement table 10 is completed.

  In step S3, it is determined whether or not the folder display / selection mode is set. This determination is made based on the numerical value of the folder display / selection mode flag set in the system controller 5, for example. The folder display / selection mode flag is set to “1” when a folder display / selection mode setting operation is performed on the operation unit 4. If another mode is set, the processing of that mode is performed. If the folder display / selection mode is set, the process proceeds to step S4.

  In step S4, a folder icon is displayed on the display unit 6 based on the folder display arrangement table 10 (see FIG. 4) created in step S2. The folder icon includes a figure indicating a folder and a folder name. Although many display modes of folder icons are conceivable, in the present embodiment, an individual display mode in which folder icons are displayed one by one in the order of the folder display arrangement table 10 will be described. First, as shown in FIG. A folder icon AR indicating a root folder which is one folder is displayed. In step S5, it is determined whether or not there is a cursor operation. If there is a cursor operation, the process returns to step S4, and folder icons indicating the upper or lower folder of the currently displayed folder are sequentially displayed corresponding to the cursor operation. . If there is no cursor operation, the process proceeds to step S6.

For example, when a folder down operation is performed, as shown in FIGS. 5B to 5G, folder icons AF1, AF2, AP2, AF3, AF4, AP1 indicating folders at lower ranks of the currently displayed folder are displayed. Are displayed sequentially. Then, when the folder down operation is performed while the playlist icon AP1 of the lowest-order folder is displayed, a folder icon AR indicating the highest-order folder is displayed (FIGS. 5G and 5H). )reference). When the folder up operation is performed, folder icons indicating folders at the top of the currently displayed folder are sequentially displayed in an order reverse to the order indicated by the arrows in FIG.

  In this embodiment, the playlist file is also handled in the same way as a folder. Therefore, when the playlist file is displayed, playlist icons AP1 and AP2 are displayed as shown in FIGS. Is displayed. The playlist icons AP1 and AP2 are configured to include a graphic indicating a folder and a playlist name. The figure showing the folder in the playlist icon is the same as the figure showing the folder in the folder icon.

  In step S6, based on the input signal from the operation unit 4, it is determined whether or not a selection operation has been performed. For example, when a selection operation is performed by pressing a selection key, for example, the system controller 5 recognizes that the folder corresponding to the folder icon displayed on the display unit 6 is the selected folder, and proceeds to step S7. Change the icon display. For example, the color of the folder icon is changed before and after selection. If there is no selection operation, the process returns to step S5 to repeat the cursor operation and the selection operation determination process.

  As described above, the user can display a desired folder icon or playlist icon by performing a cursor operation while looking at the display unit 6, and can select a folder or playlist file to be reproduced by performing a selection operation. it can. After that, when a playback operation is performed by pressing the play key etc., if a folder is selected, the audio files stored in that folder are played in order, and if a playlist file is selected The audio files are played in order according to the playlist.

According to the first embodiment, the following effects can be obtained.
In the above embodiment, when a playlist file is handled as a folder and a folder icon is displayed on the display unit 6 in order to select a folder to be played back, the playlist file is also displayed as a folder together with the playlist icon. An icon is displayed. Therefore, the user can display and select a playlist file by a folder display selection operation such as a folder up / down operation, and easily move between folders and playlist files in the folder hierarchy structure in the compressed music storage device 2. become. As a result, when switching between folder reproduction and reproduction using a playlist file, it is not necessary to perform a mode switching operation as in the prior art, and operability can be improved.

In addition, you may change the said embodiment as follows.
In the above embodiment, the graphic in the folder icon and the graphic in the playlist icon are displayed in the same display form using the same graphic, but different graphics are used, and even if the same graphic is used, the color, size, etc. You may make it display by changing a display form. When the display form is changed in this way, the user can easily recognize whether it is a folder or a playlist, so that the operability and convenience when selecting an audio file to be played are improved. Can do.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. In the second embodiment, since the display mode of the folder and the playlist file in the first embodiment is changed, detailed description of the same parts is omitted.

FIG. 6 is a schematic diagram showing a display mode of folders and playlist files in the second embodiment. In the second embodiment, when displaying a folder, as shown in FIG. 6A, a folder icon AF3 is displayed, and identification information included in an audio file stored in the folder is displayed in characters. indicate. When displaying a playlist, as shown in FIG. 6B, a playlist icon AP2 is displayed, and file designation information included in the playlist file is displayed in characters.

  When a plurality of pieces of identification information are displayed together with the folder icon in this manner, as shown in FIG. 6A, first, the uppermost identification information C1 is displayed in a display form different from the other identification information C2, C3, and C4. Display. This is to make the user recognize that the audio file corresponding to the identification information displayed in a different display form can be selected. When the user performs a file up / down operation in this state, identification information displayed in different display forms is sequentially changed.

  In the state shown in FIG. 6A, if the down operation is performed, the display form of the identification information C2 displayed below the identification information C1 is changed. Further, in FIG. 6A, when the down operation is further performed with the display form of the lowermost identification information C4 being changed, as shown in FIG. A playlist icon AP2 corresponding to P2 is displayed, and file designation information C5, C6, C7 in the playlist file P2 is displayed, and the display form of the uppermost file designation information C5 is changed and displayed.

  If the up operation is performed, the display form of the character information displayed above the character information displayed in a different display form is changed. For example, in FIG. 6A, when the up operation is performed in a state where the display form of the lowermost identification information C4 is changed, the display form of the identification information C3 displayed above the identification information C4 is changed. Is done. Further, when the up operation is further performed in the state where the display form of the uppermost file designation information C5 is changed in FIG. 6B, as shown in FIG. 6A, the upper folder of the playlist file P2 is displayed. The folder icon AF3 corresponding to F3 is displayed, the identification information C1 to C4 included in the audio file stored in the folder F3 is displayed, and the display form of the lowermost identification information C4 is changed. .

  When the reproduction operation is performed in a state where the display form of the desired identification information is changed in this way, an audio file corresponding to the identification information is reproduced. When the playlist icon is displayed, the user can select the desired file designation information and reproduce the audio file in the same manner as when the folder icon is displayed.

Therefore, according to the second embodiment, the following effects can be obtained in addition to the effects described in the first embodiment.
(1) In the second embodiment, the file designation information in the playlist file is handled in the same way as the identification information of the audio file in the folder, and the file designation information in the playlist is displayed in the folder when displaying the playlist icon. The audio file is displayed in the same manner as the audio file. Therefore, the user can select the file designation information in the playlist by the same operation as the selection operation of the audio file in the folder such as the file up / down operation. As a result, the user can see and recognize the file designation information in the playlist, so that the operability when selecting the playlist file can be improved.

  (2) In the second embodiment, since it is possible to move between a folder and a playlist file by a file display selection operation such as a file up / down operation, operability and convenience in selecting an audio file to be reproduced are improved. Improvements can be made.

  (3) In the second embodiment, it is possible to select desired file designation information in the playlist file and reproduce the corresponding audio file, so that the variation of the selection of the audio file is increased and the convenience of the data reproducing apparatus 1 is achieved. It is possible to improve the performance.

Note that the second embodiment may be modified as follows.
In the above embodiment, the playlist icon and file designation information are always displayed at the same time, but when the user performs an operation to open the folder after selecting the playlist icon, the playlist icon and the file designation are displayed. Information may be displayed at the same time. The same applies to the folder icon and the identification information. In this case, since only the file designation information or identification information in the playlist file or folder requested by the user is displayed, the audio file selection operation can be facilitated.

  In the above embodiment, the graphic in the folder icon and the graphic in the playlist icon are displayed in the same display form using the same graphic, but different graphics are used, and even if the same graphic is used, the color, size, etc. You may make it display by changing a display form. In this case, since the user can easily recognize whether it is a folder or a playlist file, it is possible to improve the operability and convenience when selecting an audio file to be reproduced.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG. In the third embodiment, since the display mode of the folder and the playlist file in the first embodiment is changed, detailed description of the same parts is omitted.

  FIG. 7 is a schematic diagram illustrating an example of a display mode of folders and playlist files in the third embodiment. The display mode shown in FIG. 7 is a so-called list display mode in which folders, playlist files, and audio data are collectively displayed according to a hierarchical structure. In the list display mode, folder icons AR, AF1, AF2, AF3, AF4 and playlist icons AP1, AP2 and audio files f1, f2, f3, f4, f5 are displayed as in the folder hierarchical structure of FIG. The file icons Af1, Af2, Af3, Af4, Af5 corresponding to are displayed. Further, file icons Ad1, Ad2 are displayed in association with the playlist icons AP1, AP2, respectively.

  In the list display mode shown in FIG. 7, the playlist icons AP1 and AP2 and the file icons Ad1 and Ad2 are displayed in a different display form from the folder icons AF1 to AF4 and the file icons Af1 to Af5. In the present embodiment, the same graphic is displayed in different colors.

  In the third embodiment, when performing a folder display selection operation, the user selects an individual display mode in which folders are individually displayed as in the first embodiment and a list display mode as shown in FIG. It is configured to be able to. This display mode selection operation is performed by the user performing a predetermined operation from the operation unit 4.

The folder selection operation in the list display mode is performed as follows, for example. First, the highest folder icon is displayed in a predetermined display form according to the folder display arrangement table 10, and the user is made aware that the folder can be selected. This display form is realized by highlighting characters or changing the color for displaying graphics. Of course, you can select a form different from the normal display form for folder icons and playlist icons. is there. When the user performs a folder up / down operation, the icon display form is sequentially changed according to the order defined in the folder display arrangement table 10 shown in FIG. When the user performs a reproduction operation in a state where the display form of the desired folder icon is changed in this way, an audio file is reproduced according to the folder or playlist file corresponding to the selected folder icon.

  In the case of the list display mode, when all the images are displayed simultaneously on the display screen 6a of the display unit 6 and the images are small and difficult to see, a part of the images is displayed on the display screen 6a. A scroll display is performed in which images are sequentially displayed by a scroll operation.

Therefore, according to the third embodiment, the following effects can be obtained in addition to the effects described in the first embodiment.
In the third embodiment, since the individual display mode and the list display mode can be selected as the display mode of the folder, the user can select the desired display mode, and the operation when selecting the folder And convenience can be improved. For example, in the case of the individual display mode, folders can be selected while being checked one by one, so that it is possible to suppress the occurrence of erroneous folder selection. In the case of the list display mode, the compressed music storage device 2 It is possible to easily grasp the hierarchical structure such as the recording position of the audio file recorded in the file.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described with reference to FIG. In the fourth embodiment, the display mode of the folder and the playlist file in the first embodiment is changed, and thus detailed description of the same parts is omitted.

  FIG. 8 is a schematic diagram illustrating an example of a display mode of folders and playlist files in the fourth embodiment. The display mode shown in FIG. 8 is a rank display mode in which a folder and a playlist file are displayed as a rank folder while ignoring the hierarchical structure. In the equality display mode shown in FIG. 8, the folders F1 to F4 and the playlist files P1 and P2 are displayed as being stored in the root folder which is the highest virtual folder. That is, folder icons AF1 to AF4 and playlist icons AP1 and AP2 are displayed in association with the folder icon AR. Since the audio file f1 is directly stored in the root folder without using the folder, the file icon Af1 corresponding to the audio file f1 is also displayed.

  For example, the folder selection operation in the equality display mode is performed as follows. First, the highest folder icon is displayed in a predetermined display form according to the folder display arrangement table 10, and the user is made aware that the folder can be selected. This display form is realized by highlighting characters or changing the color for displaying graphics. Of course, you can select a form different from the normal display form for folder icons and playlist icons. is there. When the user performs a folder up / down operation, the icon display mode is sequentially changed according to the displayed order. When the user performs a reproduction operation in a state where the display form of the desired folder icon is changed in this way, an audio file is reproduced according to the folder or playlist file corresponding to the selected folder icon.

  If all the images are displayed simultaneously on the display screen 6a of the display unit 6 and the images are small and difficult to see, a part of the images is displayed on the display screen 6a. Scroll display is performed.

Therefore, according to the fourth embodiment, the following effects can be obtained in addition to the effects described in the first embodiment.
In the fourth embodiment, since all the folder icons and playlist icons are displayed as, for example, a single row in the same row, the user can easily select a desired folder or playlist file. It is possible to improve operability and convenience when selecting a list file.

In addition, you may change the said embodiment as follows.
In the above embodiment, when the folder icon is displayed, only the case display mode that ignores the hierarchy structure is used. However, the user selects the case display mode and the layer display mode according to the hierarchy structure. You may comprise so that it can do. This display mode selection operation is performed by the user performing a predetermined operation from the operation unit 4. The hierarchical display mode is an individual display mode for individually displaying folders as shown in FIG. 5 described in the first embodiment, or a list display mode as shown in FIG. 7 described in the third embodiment. It is.

  In this case, the display mode of the folder can be selected from the equality display mode and the hierarchical display mode, so that the user can select the desired display mode and select the folder or playlist file. It is possible to improve the operability and convenience.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described with reference to FIG. In addition, since 5th Embodiment changes the display mode of the folder and play list of 4th Embodiment, detailed description is abbreviate | omitted about the same part.

  FIG. 9 is a schematic diagram illustrating an example of a display mode of folders and playlist files in the fifth embodiment. The display modes shown in FIGS. 9 (a) and 9 (b) are both equivalent display modes, but the display mode shown in FIG. 9 (a) is a list folder priority display mode in which playlist folders are displayed with priority. The display mode shown in FIG. 9B is a normal folder priority display mode in which normal folders are displayed with priority.

  In the list folder priority display mode, playlist files are displayed with priority, followed by audio files and normal folders. That is, as shown in FIG. 9A, playlist icons AP1 and AP2 are displayed from the top, followed by a file icon Af1, and then folder icons AF1 to AF4.

  In the normal folder priority display mode, normal folders are displayed preferentially, followed by an audio file and a playlist file. That is, as shown in FIG. 9B, the folder icons F1 to F4 are displayed from the top, followed by the file icon Af1, and then the playlist icons AP1 and AP2.

  The fifth embodiment is configured such that the user can select the list folder priority display mode and the normal folder priority display mode in the folder display selection operation. This display mode selection operation is performed by the user performing a predetermined operation from the operation unit 4. Note that the folder or playlist file selection operation in the two display modes is the same as in the fourth embodiment.

Therefore, according to the fifth embodiment, in addition to the effects described in the fourth embodiment, the following effects can be obtained.
In the fifth embodiment, when a playlist file is to be selected, the list folder priority display mode is used, and when a normal folder is to be selected, the normal folder priority display mode is used to speed up the selection operation. And it becomes possible to carry out easily. In particular, the selection operation when the playlist file or folder to be selected is stored at a deep position in the hierarchical structure is quick and easy.

Each said embodiment can be changed as follows.
Although the case where the actual data to be reproduced is compressed audio data has been described, the actual data to be reproduced is normal audio data that is not compressed, compressed image data, normal image data that is not compressed, and sound and video It may be a video signal in which an image is combined.

  The present invention can be applied to a data reproducing apparatus that reproduces actual data according to a user's selection from a recording medium on which a large number of actual data to be reproduced such as audio data is recorded. In particular, the present invention is useful when actual data is recorded on a large-capacity recording medium such as a hard disk, and when the actual data is compressed and recorded on the recording medium, the recorded actual data is recorded. The present invention is useful because the number of data also increases.

1 is a configuration diagram showing a schematic configuration of a data reproducing apparatus 1 according to a first embodiment of the present invention. The structure figure which shows the recording structure of a file. 6 is a flowchart for explaining a processing procedure in the data reproducing apparatus 1; The schematic diagram which shows the folder display arrangement | sequence table 10. FIG. (A)-(h) is a schematic diagram which shows the display form in 1st Embodiment. (A) And (b) is a schematic diagram which shows the display form in 2nd Embodiment. The schematic diagram which shows the display form in 3rd Embodiment. The schematic diagram which shows the display form in 4th Embodiment. (A) And (b) is a schematic diagram which shows the display form in 5th Embodiment. Schematic diagram showing a general file recording structure.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Data reproducing device, 2 ... Compressed music storage device, 3 ... Speaker, 4 ... Operation part, 5 ... System controller, 6 ... Display part, 6a ... Display screen, 7 ... Decoder, 8 ... Amplifier, 10 ... Folder display arrangement Column table, F1-F4 ... folder, P1, P2 ... playlist file, f1-f5 ... audio file, AF1-AF4 ... folder icon, AP1, AP2 ... playlist icon, C1-C4 ... identification information, C5-C7 ... file Designated information.

Claims (8)

A folder in which a data file including actual data to be reproduced and a list file including list data indicating the reproduction order of the actual data using file designation information for designating the data file can form a hierarchical structure in multiple stages In a data reproducing apparatus for reproducing actual data from a recording medium recorded using
Analyzing means for analyzing a hierarchical structure of folders and files in the recording medium;
Based on the analysis result obtained by the analysis means, display means for displaying the folder and file hierarchy structure so as to be visible,
Selecting means for selecting a folder or file from the hierarchical structure displayed on the display means;
When the folder is selected by the selection unit, the actual data of the data file stored in the folder is reproduced, and when the data file is selected, the reproduction unit reproduces the actual data of the data file,
When displaying the list file, the display means displays the list file as a folder stored in a folder in which the list file is stored,
The reproduction means reproduces the actual data of the data file according to the list data of the list file when the folder corresponding to the list file is selected. The data reproducing apparatus according to claim 1, wherein
Ranking means for ranking folders, data files and list files based on the analysis result of the analyzing means;
A rank shift means for instructing a shift to a higher or lower rank of the folder, data file and list file to be displayed;
When the display unit is instructed to shift to a higher or lower level, the display unit changes a folder, a data file, and a list file that are visibly displayed according to the rank assigned by the ranking unit. A data reproducing apparatus characterized by that. In the data reproducing device according to claim 1 or 2,
The display means displays the data file stored in the folder together with the folder, and further includes file designation information included in the list data of the list file together with the folder corresponding to the list file in the list file. Display as a data file stored in the corresponding folder,
The reproducing device reproduces actual data of a data file designated by the file designation information when the data file corresponding to the file designation information is selected by the selecting means. In the data reproducing device according to any one of claims 1 to 3,
The data reproducing apparatus, wherein the display means displays a normal folder used in a hierarchical structure and a list folder displayed as a folder corresponding to the list file in different display forms. In the data reproducing device according to any one of claims 1 to 4,
The data reproduction apparatus characterized in that the display means can switch between an overall display mode for displaying the entire hierarchical structure of folders and files at once and an individual display mode for individually displaying folders and files. In the data reproducing device according to any one of claims 1 to 4,
The data reproduction apparatus characterized in that the display means displays all normal folders and list folders included in the recording medium as equivalent folders, ignoring the hierarchical structure of the folders. In the data reproducing device according to any one of claims 1 to 4,
The display means displays all normal folders and list folders included in the recording medium as a comparable folder ignoring the hierarchical structure of the folder, and a hierarchical display mode for displaying according to the hierarchical structure of the folder. A data reproducing apparatus characterized by being switchable. The data reproducing apparatus according to claim 6 or 7,
When the display means ignores the hierarchical structure of the folders and displays them as equivalent folders, the normal folder priority display mode that preferentially displays normal folders and the list folder priority display mode that preferentially displays list folders A data reproducing apparatus characterized by being capable of being switched between.

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