JP4302136B2 - Mobile terminal device and playlist link method - Google Patents

Description

  The present invention relates to a portable terminal device capable of handling a playlist including at least a music title and an artist name, and a playlist linking method.

  In recent years, portable recording / reproducing apparatuses capable of reproducing music have become popular. Also, portable terminal devices such as cellular phones have been developed that can play music. In such a portable recording / reproducing apparatus, usually, recorded music data is managed by connecting to a personal computer.

In Patent Document 1, music content is managed by an album composed of music entities and a playlist composed of pointers to the music entities, and all the songs of the album to which the music included in the playlist belongs are personalized. It is disclosed to check out from the computer side to the disk drive device side, transfer the playlist to the disk drive device side, and link the transferred playlist and the checked out music.
JP 2005-25922 A

  In recent portable terminal devices, in addition to the main unit memory, one that can handle an external memory that can be attached to and detached from the main unit has been developed, and music data is stored not only in the main unit memory but also in the external memory. Increasing cases are also taking place. In such a case, in the mobile terminal device, it is specifically determined how to link the music in the playlist with the music data stored in the main body memory or the music data stored in the external memory. However, the current situation is that the case where a removable external memory is used is not fully supported.

  The present invention has been made in view of this point, and an object of the present invention is to provide a portable terminal device and a playlist linking method that can sufficiently cope with a case in which music reproduction is performed using a removable external memory.

A portable terminal device according to the present invention includes a communication control unit capable of receiving a playlist indicating a reproduction order of music, a main body memory capable of storing at least music data, and a removable external memory capable of storing at least music data. Means, accessible to both the main memory and the external memory, and corresponding to the music item included in the playlist and the music item stored in either the main memory or the external memory Link control means for linking music data , wherein the link control means is in a state where there is a music item linked to music data stored in the external memory, When removed, the music item and the music corresponding to the music item stored in the main memory And performing update processing for attaching link and over data.

  According to this configuration, the music item included in the playlist and the music data corresponding to the music item stored in either the main body memory or the external memory can be linked. It is possible to sufficiently cope with the case where the music is reproduced by using.

  In the portable terminal device of the present invention, it is preferable that the link control means preferentially links the music item to music data stored in the main body memory.

  In the portable terminal device of the present invention, the portable terminal device includes display means for displaying a playlist in a display form that can recognize music that is not stored in the storage means, and the communication control means is stored in the storage means. It is preferable to download no music data.

The playlist link method according to the present invention includes communication control means capable of receiving a playlist indicating the playback order of music, a main body memory capable of storing at least music data, and a removable external memory capable of storing at least music data. In a playlist linking method in a portable terminal device comprising a storage means, both of the main body memory and the external memory are accessible, and music items included in the playlist, the main body memory, and the external memory The external memory in a state where there is a music item linked to the music data stored in the external memory and the step of linking the music data corresponding to the music item stored in any of the Is removed, the music item and the main memory stored in the memory Characterized by comprising the step of performing update processing of attaching linking the music data corresponding to the song item, the.

  According to this method, music data corresponding to the music item included in the playlist is searched in the main body memory and the external memory, and the searched music data and the music item are linked. Therefore, the removable external memory is used. Thus, it is possible to sufficiently cope with the case of playing music.

  According to the portable terminal device of the present invention, the communication control means capable of receiving a playlist indicating the reproduction order of music, the main body memory capable of storing at least music data, and the removable external memory capable of storing at least music data. Including storage means, accessible to both the main memory and the external memory, the music item included in the playlist, and the music item stored in either the main memory or the external memory. Since the link control means for linking the corresponding music data is provided, it is possible to sufficiently cope with a case where music playback is performed using a removable external memory.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a diagram showing a system including a mobile terminal device according to an embodiment of the present invention. The system shown in FIG. 1 includes mobile terminals 1A and 1B, a mobile communication center 3 connected to the mobile terminals 1A and 1B via a mobile communication network 2, and a network such as the mobile communication center 3 and the Internet 4. It is mainly composed of a connected content provider (CP) 5.

  The mobile terminals 1A and 1B have an operating system (mobile device OS), and the browser function, viewer function, JAM (Java (registered trademark) Application Manager) and other functions operate on the mobile device OS. Also, music can be played.

  The mobile communication network 2 is a network between the mobile terminals 1A and 1B and the mobile communication center 3. The mobile communication network 2 includes a mobile packet communication network in addition to a normal mobile communication network. The mobile communication center 3 has, for example, an i-mode (registered trademark) server and the like, and has a gateway function for connecting the mobile communication network 2 and the Internet 4. Specifically, an information distribution function, a mail transmission / reception function , A mail storage function, a contract customer management function, an information provider management function, and an information fee billing function.

  FIG. 2 is a block diagram showing a schematic configuration of the mobile terminals 1A and 1B shown in FIG. Note that the configuration shown in FIG. 2 is simplified for the purpose of describing the present invention, and is assumed to include components mounted on a normal mobile terminal.

  The mobile terminals 1A and 1B display various data and information, a control unit 11 that controls the entire apparatus, a communication control unit 12 that communicates between mobile terminals and the CP 5 via the mobile communication network 2. A link control unit 14 for linking the music data stored in the main body memory 16 or the external memory 17 and the music items of the playlist with reference to the display unit 13 and the reference table 15 indicating the priority order of linking; Mainly from an application control unit 18 that activates various applications installed or downloaded in the apparatus, and a music playback unit 19 that plays back music using music data stored in the main body memory 16 or the external memory 17. It is configured.

  The communication control unit 12 performs a call and mail transmission / reception with the mobile terminal. When sending / receiving emails to / from a mobile terminal, playlists attached to emails can also be sent / received. Note that the playlist can be transmitted and received between portable terminals by short-range communication such as infrared communication or Bluetooth communication. Further, the communication control unit 12 downloads the song data from the CP 5 when the song data corresponding to the song item existing in the playlist is not stored in the storage unit (main body memory or external memory) of the own device. Download the playlist itself.

  The display unit 13 displays various data and information. The display unit 13 displays a playlist. The playlist is a list in which a plurality of music items including at least a music name (title) and an artist name are described, and indicates the reproduction order of the music. This playlist is displayed on the display unit 13 as shown in FIG. In addition, the display unit 13 displays the playlist in a display form that can recognize music that is not stored in the storage units 16 and 17 described later. For example, as shown in FIG. 7, in the play list, specific notation 21 is given to the music that is not stored in the storage units 16 and 17 and displayed. The specific notation 21 is not particularly limited as long as the user can recognize it.

  The application control unit 18 executes an application program created in an application language (for example, Java (registered trademark) language) in accordance with an instruction from the control unit 11. Moreover, the application control part 18 starts a music download application between CP5 at the time of downloading music data.

  The link control unit 14 links the music item included in the playlist and the music data corresponding to the music item stored in either the main body memory 16 or the external memory 17. Here, the main body memory 16 is a memory provided in the device main body of the portable terminals 1A and 1B and having a capacity capable of storing at least music data. The external memory 17 is connected to the device main bodies of the portable terminals 1A and 1B. It is composed of a rated medium that has at least capacity to store music data.

  The link control unit 14 can access either the main body memory 16 or the external memory 17 for the music items included in the playlist, and is individually stored in either the main body memory 16 or the external memory 17. Link with music data corresponding to. In this case, first, music data corresponding to a specific music item is searched from the main body memory 16 and the external memory 17, and then the searched music data and the specific music item are linked. When the music items of the playlist and the music data are linked in this way, when the music is reproduced according to the playlist, the music is reproduced using the music data linked to the music item. For example, if the first music piece is linked to music data stored in the main body memory 16 and the second music piece is linked to music data stored in the external memory 17 in the playlist, the first music piece is linked. Are reproduced using the music data stored in the main body memory 16, and the second music is reproduced using the music data stored in the external memory 17.

  When linking music items, the link control unit 14 preferably links preferentially to music data stored in the main body memory 16. As described above, by preferentially setting the linking target to the main body memory 16, it is possible to reliably perform music reproduction even when the external memory 17 is removed. In this case, the link control unit 14 preferably gives priority to a DRM (Digital Rights Management) type. As a result, it is possible to preferentially link content that can be played back by the music player of the music playback unit in the mobile terminals 1A and 1B and higher-quality content. The DRM type means the type of music content.

  Such priorities of link destinations are managed in a reference table 15 as shown in FIG. 4, and the link control unit 14 refers to this reference table 15 when linking. Further, the link control unit 14 searches for music data to be linked according to the flow shown in FIG.

  In the flow shown in FIG. 5, when a playlist is selected, that is, when a playlist file is opened (ST11), the link control unit 14 refers to the reference table 15 and confirms the priority order for linking (ST12). . First, for the first music piece X in the playlist, it is searched whether or not the music data of DRM_1 is in the main body memory 16 (ST13). If the music data of DRM_1 is stored in the main body memory 16 for the music X, the music data is linked (ST17). If there is no DRM_1 music data in the main body memory 16 for the music X, it is searched whether or not there is music data in the DRM_1 for the music X in the external memory 17 (ST14).

  If the music data of DRM_1 is stored in the external memory 17 for the music X, the music data is linked (ST17). If there is no music data of DRM_1 for the music X in the external memory 17, it is searched whether there is another DRM type (DRM_N) for the music X (ST15). If there is another DRM type, the same as above, Whether or not the music data is in the main body memory 16 is searched (ST13). If the music data is in the main body memory 16, a link is made (ST17). If the music data is not in the main body memory 16, the music data is stored in the external memory. If there is music data in the external memory 17, a link is made (ST17).

  If there is no other DRM type (DRM_N) for music X, it is determined that there is no music data for music X, and it is determined whether there are other music items in the playlist (ST18). If there is another music item in the playlist, the music data to be linked is searched for the next music item in the playlist (ST13 to ST17). Such processing is performed for all music items in the playlist.

  When the music data is linked to the music items in the playlist as described above, specifically, the link is as shown in FIG. In FIG. 6, the first music item in the playlist is linked to the music data in DRM_1 in the main body memory 16, and the second music item in the playlist is linked to music data in the DRM_1 in the external memory 17. The third music item in the playlist is linked to the DRM_N music data in the main body memory 16, and the Nth music item in the playlist is linked to the DRM_N music data in the external memory 17. It is attached. By being linked in this way, when performing music reproduction according to a playlist, music reproduction is performed using the linked music data.

  When the music item of the playlist and the music data stored in the external memory 17 are linked as described above (the state shown in FIG. 7A), the external memory 17 is removed from the main body of the portable terminal. If it is (state of FIG.7 (b)), music reproduction cannot be performed using the music data stored in the external memory 17. FIG. In such a case, if music data corresponding to the music item exists in the main body memory 16, the link control unit 14 performs an update process (replay) for linking with the music data stored in the main body memory 16. Link processing) is performed (state shown in FIG. 7C).

  That is, when the external memory 17 is removed from the apparatus main body, the music playback unit 19 cannot access the external memory 17 even if the music playback unit 19 tries to play back the music data stored in the external memory 17. You can't do it. Do you want to relink? "Is displayed. When the user selects to perform re-linking, a control signal to link the music item is output to the link control unit 14. When the link control unit 14 receives the control signal, the link control unit 14 searches whether or not the music data corresponding to the music item is stored in the main body memory 16. If the music data is stored in the main body memory 16, the link control unit 14 performs linking. Do. On the other hand, if the music data is not stored in the main body memory 16, “cannot be reproduced” is displayed on the display unit 13.

  When a playlist is acquired from such a portable terminal or from CP5 and music data is reproduced, first, the playlist is acquired from another portable terminal by e-mail or downloaded from CP5. That is, when an e-mail attached with a playlist is received from another portable terminal and the playlist file is opened, the link control unit 14 stores the playlist music items in the main body memory 16 or the external memory 17 according to the procedure described above. Link to music data stored in In this case, the music item is preferentially linked to the music data stored in the main body memory 16.

  When the music playback unit 19 performs music playback according to the playlist, the music playback is performed using the music data stored in the main memory 16 or the external memory 17 linked to the music item. In the case where music playback is performed for a music item linked to music data stored in the external memory 17 with the external memory 17 removed, the main body memory 16 is checked after confirming the user's intention. The music data stored in is relinked, and then the music is played back. Thereby, it is possible to sufficiently cope with a case where music is played back using a removable external memory.

  For music items for which music data is not stored in either the main memory 16 or the external memory 17, a special note that can be identified by the user in the playlist is given as shown in FIG. 7. When the user requests downloading of music data from CP5, for example, when the user clicks a music item with special notation, the application control unit 18 activates a music download application and downloads music data from CP5. The downloaded music data is stored in the main body memory 16 and linked to the music items in the playlist by the link control unit 14. Thereby, the special notation given to the music item is deleted from the playlist.

  When the user clicks a music item with a special note, a message “Do you want to download this music data?” Is displayed on the display unit 13, and when the user accepts the message, the application control unit 18 may activate a music download application to download music data from CP5. Further, the music data downloaded from the CP 5 may be stored in the external memory 17 by the user's selection.

  The present invention is not limited to the embodiment described above, and can be implemented with various modifications. In the above embodiment, when the external memory 17 is removed from the apparatus main body, the user's intention is confirmed when the music reproducing unit 19 tries to reproduce the music data stored in the external memory 17. Although the case where the relink process is performed is described above, in the present invention, the relink process may be automatically performed without confirming the user's intention. In addition, the numerical values, processing units, and processing procedures in the above description can be changed as appropriate without departing from the scope of the present invention. Other modifications can be made without departing from the scope of the present invention.

It is a figure which shows schematic structure of the system containing the portable terminal device which concerns on embodiment of this invention. It is a block diagram which shows schematic structure of the portable terminal device in the system shown in FIG. It is a figure which shows the example of a display of a play list. It is a figure which shows the reference table which the link control part in the portable terminal device which concerns on embodiment of this invention refers. It is a flowchart for demonstrating the search procedure of the music data at the time of linking music data. It is a figure which shows the link state of the music item of a playlist, and music data. (A)-(c) is a figure for demonstrating the link method of the playlist which concerns on embodiment of this invention.

Explanation of symbols

1A, 1B Mobile terminal 2 Mobile communication network 3 Mobile communication center 4 Internet 5 CP
DESCRIPTION OF SYMBOLS 11 Control part 12 Communication control part 13 Display part 14 Link control part 15 Reference table 16 Main body memory 17 External memory 18 Application control part 21 Specific description

Claims (4)

Communication control means capable of receiving a playlist indicating the reproduction order of music, storage means including at least a main body memory capable of storing music data, and a removable external memory capable of storing at least music data, the main body memory, and the A link that can access any of the external memories and links the music items included in the playlist to music data corresponding to the music items stored in either the main body memory or the external memory. Control means ,
The link control means stores the music item and the main memory when the external memory is removed in a state where the music item linked to the music data stored in the external memory exists. An update process for linking the music data corresponding to the music item is performed . It said link control means is a portable terminal device according to claim 1, wherein the prioritizing linked the song item on the stored music data to the main body memory. It comprises display means for displaying a playlist in such a display form that music that is not stored in the storage means can be recognized, and the communication control means downloads music data that is not stored in the storage means. The portable terminal device according to claim 1 or 2 . A portable terminal device comprising: a communication control unit capable of receiving a playlist indicating a reproduction order of music; a storage unit including at least a main body memory capable of storing music data; and a removable external memory capable of storing at least music data In the playlist link method,
Both the main body memory and the external memory are accessible, the music item included in the playlist, and music data corresponding to the music item stored in either the main body memory or the external memory; And the music item and the main body memory when the external memory is removed in a state where the music item linked to the music data stored in the external memory exists. And a step of performing an update process for linking the music data corresponding to the stored music item .

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