JP4596013B2 - Electronic music apparatus and music content processing program - Google Patents

Description

  The present invention relates to a music content distribution processing system capable of properly using music content usage patterns with a simple mechanism, and more particularly to an electronic music apparatus and a music content processing program in the content distribution processing system.

Conventionally, for example, as shown in Patent Document 1, a system is known in which music content is distributed from a server (content distribution site) to a user terminal via a network, and the music content can be auditioned or downloaded. ing.
Japanese Patent No. 3262121

  In such a conventional system, control of downloading and listening is complicated. For example, in an electronic music device as a user terminal, music content distributed from a content distribution site is stored in a predetermined recording medium in the case of downloading, and streaming playback is performed in real time in the case of trial listening, and temporary memory is stored. Therefore, it is necessary to distinguish the control method so that it is only temporarily stored in the recording medium but not in the recording medium. However, if such control is performed on the content distribution site side, very complicated processing is required.

  In view of such circumstances, the present invention is a music content that can be used properly for download and streaming, etc., with a simple mechanism for music content distributed from a music content distribution site to a user terminal (electronic music apparatus). An object is to provide a distribution processing system.

  According to the main feature of the present invention, the distribution type (DT) indicating whether the distribution of the music content (CF) is received in the download mode or the streaming mode, and the style in which the distributed music content (CF) is accompaniment pattern data. Distribution mode receiving means (A5) for receiving, from the music content distribution server (DS), a distribution mode definition file (DF) that defines a content type (CT) indicating whether it is a data file or song data composed of music data. A distribution mode interpretation unit (B1) that interprets the distribution mode definition file (DF) received by the distribution mode reception unit (A5), and content reception that receives music content (CF) from the music content distribution server (DS). Means (B2: B22 / B25, B28) and distribution mode interpretation means (B1) Based on the interpretation result (DT, CT) of the distribution mode definition file (DF) according to, the music content (CF) received by the content receiving means is converted into the distribution type (DT) specified in the distribution mode definition file (DF). ) According to the content type (CT) according to the content type (CT) defined in the distribution mode definition file (DF). When the music content (CF) is stored in the storage location (RM) of the storage medium (B22) and processed in the streaming mode, the music content (CF) is temporarily stored in the temporary storage medium (TM). (B25, B28) and automatically start playing the music content (CF) That (B26, B29) the contents processor (B2: B22 / B25~B26, B28~B29) electronic musical apparatus and a is (EM) [Claim 1] is provided. Note that the parentheses are added with reference symbols and the like of the corresponding embodiments for the convenience of understanding, and the same applies to the following.

  Further, according to this feature, the distribution type (DT) indicating whether the distribution of the music content (CF) is received in the download mode or the streaming mode to the computer (EM) functioning as an electronic music device, and the music content to be distributed A music content distribution server (DS) defines a distribution mode definition file (DF) that defines a content type (CT) indicating whether (CF) is a style data file composed of accompaniment pattern data or song data composed of music data. From the distribution mode reception step (A5) received from the distribution mode interpretation step (B1) for interpreting the distribution mode definition file (DF) received in the distribution mode reception step (A5), and the music content distribution server (DS) Content receiving step for receiving music content (CF) ( 2: B22 / B25, B28) and the music content (CF) received in the content receiving step based on the interpretation result (DT, CT) of the distribution mode definition file (DF) in the distribution mode interpretation step (B1) Is processed in the download mode or streaming mode according to the distribution type (DT) specified in the distribution mode definition file (DF), and the content specified in the distribution mode definition file (DF) is processed in the download mode. According to the type (CT), when the music content (CF) is stored in the storage destination (RM) of the storage medium determined in accordance with the content type (CT) (B22) and processed in the streaming mode, The music content (CF) is temporarily stored in the temporary storage medium (TM) (B25, B 8) A music content processing program for automatically executing the music content (CF) (B26, B29) and a content processing step (B2: B22 / B25-B26, B28-B29). Claim 2] is provided.

  In the music content distribution processing system according to the present invention, an electronic music device (EM), which is a user terminal, accesses a music content distribution server (DS) via a communication network (CN) such as the Internet and instructs a music content usage form. Then (A4), the distribution server (DS) returns a distribution mode definition file (DF) corresponding to this instruction (C3). The distribution mode definition file (DF) is a distribution type (DT) indicating whether the distributed music content (CF) is processed in the download mode or the streaming mode in accordance with the instruction content from the electronic music apparatus (EM). And a content type (CT) indicating whether the music content (CF) to be distributed is a style data file composed of accompaniment pattern data or song data composed of music data. On the electronic music apparatus (EM) side, the distribution mode definition file (DF) from the distribution server (DS) is interpreted (B1), and based on the interpretation result, the distribution server responds to the distribution request for the music content (CF). The music content (CF) sent from (DS) is processed in the download mode or streaming mode according to the distribution type (DT) defined in this file (DF), and download or streaming playback is performed (B2). At this time, when processing in the download mode, the storage destination (RM) of the storage medium defined corresponding to the content type (CT) according to the content type (CT) defined in the distribution mode definition file (DF) In addition, when the received music content (CF) is stored (B22) and processed in the streaming mode, the music content (CF) is temporarily stored in the temporary storage medium (TM) (B25, B28). At the same time, streaming playback of the music content (CF) is automatically started (B26, B29).

Thus, in the music content distribution processing system according to the present invention, when distributing music content, first, the distribution format defining file (DF) is transmitted from the music content distribution server (DS) to the electronic music device via the communication network (CN). to download. In the electronic music apparatus (EM), when the distribution mode definition file (DF) is interpreted and then the music content (CF) is sent from the distribution server (DS), the file is determined according to the interpretation result of the file (DF). When the distribution type (DT) of (DF) indicates processing in the download mode, the music content (CF) is stored in the storage destination (RM) determined corresponding to the content type (CT) of the file (DF). When the download mode process (B22) for saving the file is performed and the distribution type (DT) of the file (DF) indicates the process in the streaming mode, the music content (CF) is stored in the temporary storage medium (TM). In the streaming mode, the data is automatically stored and reproduced. Therefore, according to the present invention, on the distribution server (DS) side, it is possible to selectively use download or streaming reproduction without requiring any complicated processing just by determining the distribution mode definition file (DF). At the same time, in the case of downloading, the music content can be stored in a predetermined storage area depending on whether it is accompaniment pattern data or song data.

  A preferred embodiment of the present invention will be described below with reference to the drawings. However, this is merely an example, and the present invention can be variously modified without departing from the spirit of the invention.

[System Overview]
FIG. 1 is a block diagram showing the hardware configuration of a content distribution processing system according to an embodiment of the present invention. In the illustrated example, the electronic music apparatus EM that functions as a user terminal in the content distribution processing system uses an electronic musical instrument or a music information processing apparatus such as a personal computer (PC) that includes a performance operation unit and a musical sound output unit. It is done. Such an electronic music apparatus EM includes a central processing unit (CPU) 1, a random access memory (RAM) 2, a read only memory (ROM) 3, an external storage device 4, a performance operation detection circuit 5, a setting operation detection circuit 6, A display circuit 7, a sound source circuit 8, an effect circuit 9, a MIDI interface (I / F) 10, a communication interface (I / F) 11, and the like are provided, and these devices 1 to 11 are connected to each other via a bus 12.

  The CPU 1 executes various music information processing including music content processing using a clock by the timer 13 according to various control programs including a music content processing program. For example, the music content processing program includes a browser and a download and playback program (DR). That is, the CPU 1 functions as a browser processing unit (BR) in the previous stage of music content distribution, and performs browser processing with the content distribution site (DS) according to the browser. Further, the CPU 1 functions as a download and playback processing unit (DR) in the subsequent music content distribution stage, and is determined based on the communication result with the same site (DS) obtained by the browser process according to the download and playback program. The music content distributed from the site (DS) is processed according to the distribution type (DT).

  The RAM 2 is used as a work area for temporarily storing various data necessary for these processes. The ROM 3 stores in advance various control programs and parameters for performing these processes, music information, and the like.

  The external storage device 4 is not only a built-in storage medium such as a hard disk (HD) but also a compact disk read only memory (CD-ROM), a flexible disk (FD), a magneto-optical (MO) disk, a digital multipurpose disk ( Various portable external storage media such as a small memory card such as a DVD, a smart media (registered trademark), and the like are included. The internal storage medium (HD or the like) of the external storage device 4 has a storage area used for a temporary memory (TM) for temporarily storing the distributed content and the trial listening content. Note that a storage area for the temporary memory (TM) may be provided in the RAM 2.

  Further, an internal storage medium of the external storage device 4 or an arbitrary storage medium in the external storage medium is used as a content recording medium (RM) for storing content transmitted from the content distribution site (DS). The content recording medium (RM) can be arbitrarily selected by the user from the above-described recording media, and the content recording medium (RM) has a storage area (save destination) corresponding to the type of content to be saved. It is set in advance.

  The performance operation detection circuit 5 detects the performance operation contents of the performance operator 14 such as a keyboard or a wheel, and introduces performance information corresponding to the detected contents into the system main body. Constitute. The setting operation detection circuit 6 detects the setting operation contents of the setting operator 15 such as a number / cursor key or a panel switch, and introduces setting information corresponding to the detection contents to the system main body.

  The display circuit 7 drives a display 16 for displaying various screens and various indicators (lamps) to control the display / lighting contents in accordance with instructions from the CPU 1 and provide display assistance for the operations of the respective operators 14 and 15. . The display 16 can display video data accompanying the music data.

  The tone generator circuit 8 generates a musical tone signal corresponding to musical tone data obtained by processing performance information from the performance operator 14 and music information from the storage means 3 and 4. The effect circuit 9 having the effect applying DSP gives a predetermined effect to the musical sound signal, and the sound system 17 connected to the effect circuit 9 includes a D / A converter, an amplifier, and a speaker. These elements 8, 9, and 17 constitute a musical sound output unit, and a musical sound based on a musical sound signal to which an effect is given is generated from the sound system 17.

  Further, another electronic musical instrument (MIDI device) ED is connected to the MIDI I / F 10 so that music information can be exchanged between the electronic music apparatus EM and the other electronic musical instrument ED. The communication I / F 11 is connected to a communication network CN such as the Internet. The communication I / F 11 receives music contents and various control programs related to the use of music contents from the music content distribution site DS and uses them in the electronic music apparatus EM. can do. Furthermore, another control program and music information can be received from another server (not shown) connected to the communication network CN, stored in the external storage device 4, and used in the electronic music device EM.

  In this system, the music content distribution site DS includes a function of a server that manages the site, and is almost synonymous with “music content distribution server”. The hardware configuration of the music content distribution server DS is almost the same as that of the electronic music apparatus EM shown in FIG. 1, and although details are not shown, the performance operation units 5, 14 and the tone output units 8, 9, 17, There is no need for MIDI / I / F 10 or the like.

[System content distribution processing function]
FIG. 2 is a schematic functional block diagram of a content distribution processing system according to an embodiment of the present invention. Here, the outline of the function of the content distribution processing system will be described very simply with reference to FIG. In this system, when the browser processing unit BR of the electronic music apparatus EM that is a user terminal accesses the music content distribution site DS and instructs the music content usage mode (3), the distribution site DS returns the distribution mode definition file DF. (4). This file DF defines whether the music content CF to be distributed from now on is processed in the download mode or the streaming mode in accordance with the instruction contents of the usage mode. The download and playback processor DR that can decrypt the file DF interprets the file DF, and when the music content CF is sent from the distribution site DS in response to the music content distribution request (5) (6), Based on the interpretation result, the music content CF is processed in the download mode or the streaming mode.

  Hereinafter, FIG. 2 will be described in more detail. In this content distribution processing system, the CPU 1 of each electronic music device EM that is a user terminal operates in accordance with a “browser” and a “download and playback program” included in the music content processing program, as shown in FIG. Further, it functions as a browser processing unit BR and a download and reproduction processing unit DR. The browser processing unit BR is a functional element for communicating with the music content distribution site DS shown in FIG. 2B and browsing the provided information of the site DS by executing the browser.

  The download and reproduction processing unit DR executes the helper application called “download and reproduction program” in this case, so that the contents of the distribution mode definition file DF (described later) downloaded as a result of the communication with the content distribution site DS are stored. This is a functional element that decrypts and processes the music content in the “download” mode or the “streaming” mode according to the distribution type (DT) defined in the file DF. With the function of the processing unit DR, the music content distributed from the distribution site DS after downloading the file DF is a content recording medium RM arbitrarily selected from the storage medium of the external storage device 4 in the “download” mode. In the “streaming” mode, the data is temporarily stored in the temporary memory TM secured in a predetermined storage area of the internal storage medium (or RAM 2) of the external storage device 4 and automatically reproduced.

  On the other hand, as shown in FIG. 2B, the music content distribution site DS stores a large number of content files CF that can be distributed to each user terminal (electronic music apparatus) EM, as well as a page information file PF and distribution mode rules. The file DF is provided, and the required data can be returned from the required file according to the communication progress with the electronic music apparatus EM.

  The page information file PF is composed of a plurality of content distribution page data PD for guiding content provided from the content distribution site DS to each user terminal (electronic music apparatus) EM.

The distribution mode defining file DF is a file for defining how to distribute the content, and is transmitted to the user terminal EM in advance when providing the content to the user terminal EM. Each distribution mode definition file DF is provided corresponding to each content file CF corresponding to each provided content, and a URL (Uniform) indicating the location of each content file CF is provided.
Resource Locator), a distribution type DT indicating the distribution mode of the content file CF in the electronic music apparatus EM, and a content type CT indicating the type thereof.

  For transmission of the distribution mode definition file DF, a distribution mode specification file DF created in advance for all content files CF is prepared, and the request (request) content from the user terminal EM is dealt with among them. There are cases where a file to be sent is selected and sent back, and every time there is a request from the user terminal EM, a delivery mode defining file DF that matches the requested content is created and sent back to the user terminal EM.

  The content file CF constitutes a file group forming the main body of the content database in the content distribution site DS, and is divided into all content files CFa and trial listening content files CFb corresponding to the distribution type DT. All content files CFa are mainly music contents to be sold to users, and corresponding to the content type CT, all song data files SNa including the entire music data, all style data files STa including the entire accompaniment pattern data, etc. It is divided into types.

  The audition content file CFb prepared for the user's audition is also classified in the same manner, and includes an audition song data file SNb and an audition style data file STb. For these sample songs and sample style data (files) SNb, STb, etc., representative or characteristic partial data was extracted from all songs and all style data (files) SNa, STa of all corresponding content files CFa. It is a data file.

  In the following, all content files (CFa), all song data files (SNa), or all style data files (STa) are simply “content files”, “song data (files) unless there is a risk of misunderstanding. ) "Or" style data (file) ".

  Here, the distribution type DT of the distribution mode definition file DF will be described. There are three types of distribution types DT: “download”, “stream”, and “trial listening”.

  First, in the “download” type, a content file CFa representing the entire content requested by the user is distributed to the electronic music apparatus EM of the user, and the electronic music apparatus EM should be operated in the download mode. And has a function of permanently storing the content file CFa in the content recording medium RM (it is not erased unless there is a user's erase instruction). In this case, the content file CFa is stored in a storage area set in advance in the content recording medium RM according to the contents (song / style /...) Of the content type CT of the distribution mode defining file DF. In addition, the content distributed in the “download” type is charged, and when the content file CFa is distributed at the content distribution site DS, the terminal user is charged at a normal selling price.

  On the other hand, the “stream” or “trial listening” type specifies that the electronic music apparatus EM should operate in the streaming mode, and temporarily stores the content files CFa and CFb in the temporary memory TM. Has a function to automatically play. However, the target content of “stream” is the same content file CFa as “download”, but the target content of “trial listening” is a trial listening that represents a representative or characteristic part of the content requested by the user. The content file CFb. The content distributed in the “stream” type is also charged, but the fee charged is set to be considerably lower than the download. In addition, content distributed in the “trial listening” type is free of charge in principle.

  In the electronic music apparatus EM, when the processing in the streaming mode is performed according to the “stream” and “trial listening” types, the electronic music apparatus EM can perform automatically according to the content files CFa and CFb temporarily stored in the temporary memory TM. The contents stored in the temporary memory TM are set so as to be forcibly erased at the earlier time when the power source of the electronic music apparatus EM is turned off or a certain period (for example, 72 hours) elapses. .

  Accordingly, in this system, as indicated by the arrows between FIGS. 2A and 2B, (1) the browser processing unit BR of the electronic music device EM accesses the music content distribution site DS in response to a user operation. Then, (2) the distribution site DS returns page data PD corresponding to the access destination. As a result, the electronic music apparatus EM displays a page screen on the display 16 according to the returned page data PD, and the user wants to obtain it by performing an operation of browsing this and selecting desired music content. Distribution of desired content can be instructed to the distribution site DS side.

  For this content selection, for example, the page screen on the display 16 shows the name or number of each content according to the content type such as “Song”, “Style”, etc. Is a content list in which style names or style numbers are arranged, and usage mode selection buttons (including character strings) labeled “purchase”, “stream”, “trial listening”, and the like are operably displayed. On the other hand, the user selectively designates the name or number of the desired content from the desired type of content list, and further performs an operation of instructing the content usage mode by checking the desired usage mode selection button. (3) The browser processing unit BR of the electronic music apparatus EM accesses the link destination of the content distribution site DS according to the content type, content name or number based on the user operation, and the usage mode instruction, and instructs them. .

  The content distribution site DS specifies the content file CF corresponding to the content instructed along with the access and determines the URL, and the content type CT and the distribution type corresponding to the instructed content type and usage mode, respectively. Determine DT. For example, the distribution type DT is determined as the “download” type if the usage form is “purchase”, and is the “stream” or “trial listening” type if the usage form is “stream” or “trial listening”, respectively. (4) The distribution site DS creates a distribution mode definition file DF composed of the URL, the distribution type DT, and the content type CT determined in this way, or stores similar contents in advance. Obtain and return to the browser processing unit BR of the electronic music apparatus EM.

  The browser processing unit BR of the electronic music apparatus EM downloads the distribution mode definition file DF from the content distribution site DS and passes it to the download and playback processing unit DR that can decrypt the distribution mode definition file DF. Then, (5) the processing unit DR accesses the URL indicated by the distribution mode definition file DF passed from the browser processing unit BR, and requests distribution of the desired content file CF at the URL. In response to this, (6) the distribution site DS transmits the content file CF of the URL to the processing unit DR of the electronic music device EM.

  The download and playback processing unit DR of the electronic music apparatus EM processes the content file CF transmitted from the content distribution site DS according to the distribution type DT indicated by the distribution mode definition file DF. That is, when the distribution type DT is download, the download mode process is performed, and the transmitted content file CFa is stored in the content recording medium RM. Therefore, the user of the electronic music apparatus EM can freely use the content file CFa stored in the recording medium RM thereafter.

  Further, when the distribution type DT is a stream or a trial listening, processing in the streaming mode is performed. Therefore, in these cases, the transmitted content file CFa or trial listening content file CFb is temporarily stored in the temporary memory TM and automatically reproduced (so-called streaming reproduction). Further, while the content files CFa and CFb are stored in the temporary memory TM, automatic performance can be performed at any time according to the content files CFa and CFb. However, these content files CFa and CFb are deleted from the temporary memory TM when the power source of the electronic music apparatus EM is turned off, and even when the power source is not turned off, the content files CFa and CFb are stored in the temporary memory TM when a predetermined period has passed. It is automatically deleted.

[Example of processing flow]
FIG. 3 is a flowchart showing an operation example of the entire content distribution processing system according to the embodiment of the present invention, and FIG. 4 is a flowchart showing an operation example corresponding to each distribution type according to the embodiment of the present invention. In both figures, broken line arrows and symbols “(1)” to “(6)” representing communication relationships between the user terminal (electronic music apparatus) EM and the music content distribution site DS are indicated by the arrows and symbols “ (1) Corresponds to “(6)”.

  First, the overall operation flow of FIG. 3 will be described. In the user terminal (electronic music apparatus) EM, browser processing by the browser processing unit BR is started by a user operation of a predetermined setting operator 15, and first, the content distribution site DS is accessed from the electronic music apparatus EM side [Step A1 → (1)].

  On the other hand, the content distribution site DS transmits the content distribution page data PD in the page information file PF to the electronic music apparatus EM [Step C1 → (2)]. The browser processing unit BR of the electronic music apparatus EM receives the content distribution page data PD and displays a guidance screen based on the data PD on the display 16 [Step A2].

  On this guidance screen, content that can be provided from the content distribution site DS and the distribution mode of the content are displayed in a selectable manner. For example, a content list for each content type such as a song or style is displayed, and a desired type of content can be selected from each content list. In addition, a usage mode selection button is displayed, and it is possible to further select usage modes such as purchase, stream, and audition for the selected content. Therefore, the user selects a desired content name or number (song name or song number / style name or style number) from a desired type (song / style /...) Content list, and uses the selected content ( When (Purchase / Stream / Trial) is selected with the usage mode selection button, the desired content and its usage mode are instructed to the content distribution site DS.

  Therefore, the browser processing unit BR determines whether or not such a content usage mode instruction has been issued [step A3]. If the usage mode is not instructed [A3 → NO], the browser processing is immediately terminated. On the other hand, when an instruction for use, that is, download / stream / trial listening is given [A3 → YES], the browser processing unit BR accesses the link destination according to the instruction and distributes the desired content in the desired use form. A request is sent to the content distribution site DS [Step A4 → (3)].

  Upon receiving this request, the content distribution site DS performs billing processing corresponding to the request content as necessary (ie, when download or stream is instructed) [Step C2], and then matches the request content. The distribution mode definition file DF is transmitted to the electronic music apparatus EM [Step C3 → (4)].

  When the browser processing unit BR of the electronic music apparatus EM receives and downloads the distribution mode definition file DF, the browser processing unit BR sends it to the download and playback processing unit DR and shifts the following processing to the processing unit DR [Step A5]. This browser process is terminated.

  On the other hand, the download and reproduction processing unit DR decodes the downloaded distribution mode definition file DF to determine the distribution type DT [Step B1], and download mode or streaming corresponding to the determined distribution type DT. The mode process is executed [step B2]. That is, when the URL specified in the distribution mode definition file DF is accessed [(5)] and the content file CF at the accessed URL is transmitted from the content distribution site DS [step C4 → (6)], The content file CF is processed in the download mode or the streaming mode and stored or reproduced according to the distribution type DT defined in the already downloaded distribution mode defining file DF.

  FIGS. 4A to 4C are flowcharts showing specific examples of content processing performed for each distribution type described above. When the distribution type DT is download, as shown in FIG. 4A, when the download and playback processing unit DR of the electronic music device EM accesses the URL of the content file CFa of the music content distribution site DS [B21 → ( 5)], the distribution site DS sends back the content file CFa of the same URL [C41 → (6)].

  When receiving the content file CFa, the download and reproduction processing unit DR performs the processing of the download mode because the distribution type DT = “download” is defined in the distribution mode defining file DF, and the content file CFa is recorded as content. The data is stored in a predetermined area of the medium RM, that is, in a storage destination corresponding to the content type CT (song / style /...) [B22].

  On the other hand, when the distribution type DT is a stream, as shown in FIG. 4B, when the download and playback processing unit DR of the electronic music device EM accesses the URL of the content file CFa of the content distribution site DS. [B24 → (5)], the distribution site DS sends back the content file CFa with the same URL [C42 → (6)]. When receiving the content file CFa, the processing unit DR executes the processing in the streaming mode because the distribution type DT = “stream” is defined in the distribution mode defining file DF.

  That is, the content file CFa sent from the content distribution site DS is temporarily stored (stored) in the temporary memory TM [B25], and the content file CFa is automatically reproduced to generate the musical sound output unit 8, The sound is emitted through 9, 17 [B26]. Also, the audition content file CFb stored in the temporary memory TM is deleted when the electronic music apparatus EM is turned off, or forcibly deleted after a certain period even if the power is not turned off. The

  When the distribution type DT is a trial listening, as shown in FIG. 4C, when the download and playback processing unit DR of the electronic music device EM accesses the URL of the trial content file CFb of the content distribution site DS [B27 (5)], the distribution site DS sends back the trial listening content file CFb of the same URL [C43 → (6)]. When receiving the trial content file CFb, the processing unit DR executes the streaming mode process because the distribution type DT = “trial” is defined in the distribution mode prescribing file DF. Are temporarily stored (stored) in the temporary memory TM [B28] and automatically reproduced [B29]. Also in this case, the content file CFa in the temporary memory TM is forcibly erased at the earlier time of the power-off time or the elapse of a certain period.

[Various Embodiments]
As mentioned above, although one Example of this invention was described, a various change is possible and it can implement in a various aspect. For example, the music content is not limited to music data only, and may include video data, score data, and the like.

  In the embodiment, all the content files (CFa) and the audition content files (CFb) are separately provided as content files (CF) of the content distribution site. However, some or all of the audition content files (CFb) ), And when there is a request for a preview content, the required content data (CFa) corresponding to the request may be extracted to create a preview content file, or all content files ( Restriction information for restricting only a part to CFa) may be given, and this may be used as a sample content file.

It is a hardware block diagram of the content distribution processing system by one Example of this invention. 1 is a schematic functional block diagram of a content distribution processing system according to an embodiment of the present invention. FIG. It is a flowchart showing the operation example of the whole content delivery processing system by one Example of this invention. It is a flowchart showing the operation example according to each delivery type by one Example of this invention.

Explanation of symbols

Electronic music device (user terminal) composed of EM PC or electronic musical instrument,
BR browser processing unit,
DR download and playback program (helper application) processing unit,
RM content recording medium,
TM temporary memory,
DS music content distribution site (server),
PF page information file,
DF distribution mode definition file,
CF content file.

Claims (2)

Content indicating whether the distribution of music content is received in download mode or streaming mode, and whether the distributed music content is a style data file composed of accompaniment pattern data or song data composed of music data A distribution mode receiving means for receiving from the music content distribution server a distribution mode definition file that defines the type;
A distribution mode interpretation unit that interprets the distribution mode definition file received by the distribution mode reception unit;
Content receiving means for receiving the music content from the music content distribution server;
Based on the interpretation result of the distribution mode definition file by the distribution mode interpretation unit, the music content received by the content reception unit is processed in the download mode or streaming mode according to the distribution type specified in the distribution mode definition file, When processing in the download mode, according to the content type specified in the distribution mode definition file, when the music content is stored in the storage destination specified for the content type and processed in the streaming mode The electronic music apparatus further comprises: content processing means for temporarily storing the music content in a temporary storage medium and automatically starting the reproduction of the music content. To a computer that functions as an electronic music device,
Content indicating whether the distribution of music content is received in download mode or streaming mode, and whether the distributed music content is a style data file composed of accompaniment pattern data or song data composed of music data A distribution mode reception step of receiving a distribution mode definition file that defines the type from the music content distribution server;
A distribution mode interpretation step of interpreting the distribution mode definition file received in the distribution mode reception step;
A content receiving step of receiving the music content from the music content distribution server;
Based on the interpretation result of the distribution mode definition file in the distribution mode interpretation step, the music content received in the content reception step is processed in download mode or streaming mode according to the distribution type specified in the distribution mode definition file. In the case of processing in the download mode, the music content is stored in the storage destination of the storage medium determined in accordance with the content type according to the content type specified in the distribution mode definition file, and processed in the streaming mode. In this case, a music content processing program that temporarily stores the music content in a temporary storage medium and executes a procedure including a content processing step of automatically starting playback of the music content.

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