JP5034602B2 - Electronic music apparatus and program - Google Patents

Description

  The present invention relates to an electronic music apparatus and a program that receive data distribution from an external server apparatus via a communication network and reproduce a program composed of music, video, and the like. In particular, the present invention relates to an electronic music apparatus and a program that are activated in a playback standby state for a program distributed from a server apparatus when the electronic music apparatus is turned off when the electronic music apparatus is powered on.

Conventionally, a so-called Internet broadcast or the like is a program made up of music or video (for example, download distribution, streaming distribution, or pseudo-streaming distribution) that is distributed from an external server device deployed on the Internet (for convenience) There is known an electronic music apparatus that allows a user to watch and listen to a program and enjoy it as the received program is reproduced at any time. An example of a technique for receiving and reproducing a program from an external server device via such a communication network is, for example, the technique described in Patent Document 1 shown below. In this Patent Document 1, based on a program file in which a plurality of contents are defined in the order of playback, the server apparatus sequentially pseudo-streams (or progressively) a plurality of contents included in a user-desired program with respect to the client apparatus. (Also referred to as download), and a technique is described in which a client device reproduces a plurality of contents delivered from a server device while sequentially receiving the content.
JP 2002-335507 A

  By the way, in the conventional technology described above, it is necessary to select a desired program to be reproduced by the user before receiving program distribution (particularly pseudo stream distribution) from the server device. However, for example, after the program is selected and before the playback is started or after the playback is started, the user temporarily interrupts the program distribution and turns off the power of the electronic music apparatus main body, and then the power is turned on again. (For example, when the power is turned off again), even though it is highly likely that the user will select / replay the same program that was delivered from the server device when the power was turned off, When the power is turned off, the operation for selecting the program distributed from the server device when the power is turned off must be performed again from the beginning. Such an operation is very troublesome and takes time. Therefore, in an electronic music apparatus that can receive a program distribution from the server device and reproduce the program, the same program as the program distributed from the server device at the time when the power is turned off when the power is turned on is Although an electronic music apparatus that is activated in a playback standby state (reproduction standby state) that can immediately start playback in response to a playback start operation by the device is very useful, there has never been such a device.

  The present invention has been made in view of the above-described points. When the electronic music device is turned on, the program distributed from the server device at the time when the electronic music device is turned off is put into a playback standby state and activated. It is an object of the present invention to provide an electronic music apparatus and a program that can be used.

An electronic music apparatus according to the present invention is an electronic music apparatus that reproduces a series of programs composed of a plurality of contents in response to data distribution from a server apparatus connected via a communication network, and a power source that supplies power Non-volatile storage means in which the stored contents are not erased even when the power is turned off, which stores the program being played back when the power is turned off, and the server device is reactivated in response to the power-on operation. A program collating unit for connecting and collating the program stored in the storage unit with the program stored in the server unit; and according to the program collation, the same program as the program stored in the storage unit is included in the server unit. Is stored in the program, the content list defining the playback order of the plurality of contents included in the program is acquired from the server device, and the program is in a playback standby state. While setting device, the contents said storage means the same program and the stored programs is if they are not stored in the server apparatus, which defines the reproduction order of a plurality of contents included in any program designated in advance Acquires a list from the server device, sets the designated program in a playback standby state, and responds to each content in the playback order specified in the acquired content list in accordance with a program playback start instruction A plurality of pieces of data to be sequentially received from the server device, and in parallel with the reception of the data, reproduction means for performing pseudo streaming reproduction of a series of programs based on the received data.

According to the present invention, a plurality of contents played back in response to data distribution from a server device connected via a communication network to a nonvolatile storage means whose stored contents are not erased even when the power supply for supplying power is turned off Is stored in a series of programs that were being played when the power was turned off. The server device is reconnected in response to the power-on operation, and the program stored in the storage unit is compared with the program stored in the server device. When the same program as the program stored in the storage means is stored in the server device, a content list defining the playback order of a plurality of contents included in the program is acquired from the server device, and the program Set the device to playback standby mode. On the other hand, if the same program as the program stored in the storage means is not stored in the server device, a content list defining the playback order of a plurality of contents included in an arbitrary program designated in advance is displayed on the server. Acquired from the apparatus, and sets the designated program in a playback standby state. When a program playback start instruction is given, a plurality of data corresponding to each content is sequentially received from the server device in the playback order defined in the acquired content list, and in parallel with the reception of the data. Then, a series of programs are pseudo-streamed based on the received data. At this time, if the program that was being played back at the time of power-off is still stored in the server device, the program is played back, and if the program that was being played back at the time of power-off is not already stored in the server device, Any specified program is played. In this way, if the program that was being played back in response to power off is stored in the non-volatile storage means, the stored contents will not be erased even if the power is turned off, and the power is turned on again. Since the program stored in the storage means can be referred to and the electronic music apparatus can be started in accordance with the program in a playback standby state, the user selects the program when the power is turned on. Even if the operation is not performed again from the beginning, the same program as the program distributed from the server device at the time when the power is turned off can be immediately started to be reproduced. At that time, even if the program that was being played when the power was turned off was already deleted from the server device, the previously designated program was played as an alternative program, so the user was playing You can enjoy alternative programs instead of programs.

  The present invention may be constructed and implemented not only as an apparatus invention but also as a method invention. Further, the present invention can be implemented in the form of a program of a processor such as a computer or a DSP, or can be implemented in the form of a storage medium storing such a program.

  According to the present invention, since the program distributed from the server device at the time when the power is turned off is stored in the non-volatile storage means, even when the power is turned on again after the power is turned off. The stored program can be referred to, and after checking the program against the reconnected server device based on the program, the electronic music device is activated with the program being played back in a playback standby state. Therefore, it is very convenient that the user can simply and immediately start playing the program distributed from the server device at the time when the power was turned off the last time by simply turning on the power. Get the effect.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a hardware configuration block diagram showing the overall configuration of an electronic music apparatus according to the present invention. The electronic music apparatus shown in this embodiment is controlled by a microcomputer comprising a microprocessor unit (CPU) 1, a read only memory (ROM) 2, and a random access memory (RAM) 3, such as an electronic musical instrument or a personal computer. It is a device that can generate musical sounds electronically. The CPU 1 controls the operation of the entire electronic music apparatus. With respect to this CPU 1, ROM 2, RAM 3, performance operation detection circuit 4, setting operation detection circuit 5, display circuit 6, tone generator circuit 7, effect circuit 8, nonvolatile memory 9, and external storage device 10 via data and address bus 1D. A communication network interface (I / F) 11 and a MIDI interface (I / F) 12 are connected to each other. Further, the CPU 1 is connected to a timer 1A for measuring the interrupt time and various times in the timer interrupt process (interrupt process). For example, the timer 1A generates a clock pulse, and gives the generated clock pulse to the CPU 1 as a processing timing command or to the CPU 1 as an interrupt command. The CPU 1 executes various processes according to these instructions.

  The ROM 2 stores various programs executed by the CPU 1 and various data. The RAM 3 is used as a working memory that temporarily stores various data generated when the CPU 1 executes a predetermined program, or as a memory that stores a currently executed program and related data. A predetermined address area of the RAM 3 is assigned to each function and used as a register, flag, table, memory, or the like. In the electronic music apparatus shown in the present embodiment, the program and content currently being played or the user is going to play, such as “selected program list”, “program designation information”, “content list”, “content number”, etc. Various types of information and various data such as “acquired data group” are stored in the RAM 3 (see FIG. 3 described later in detail). These pieces of information and data stored in the RAM 3 are automatically deleted in response to an off operation of a power source (not shown) of the electronic music apparatus main body.

  The performance operator 4A is, for example, a keyboard provided with a plurality of keys for selecting the pitch of a musical tone, and has a key switch corresponding to each key. The keyboard etc. can be used for manual performance by hand-playing by the user, as well as program selection / distribution to the external server device 11A connected to the electronic music device via the communication network X. It can also be used as a means for instructing to perform or a means for starting / stopping reproduction of a program distributed from the server device 11A. The performance operation detection circuit 4 generates a detection output by detecting pressing and release of each key of the performance operator 4A.

  The setting operator (switch, etc.) 5A includes, for example, a mode setting switch for setting the operation mode of the electronic music apparatus, a program selection switch for selecting a program, a program playback switch for instructing start / stop of program playback, etc. There is. "Network program operation mode" for receiving a program distribution from an external server apparatus 11A connected to the electronic music apparatus via the communication network X and the electronic music apparatus in response to the operation of the mode setting switch, and playing the network program Or, this electronic music apparatus can be set to any of the “built-in program operation mode” in which the program is played back based on the information or substance data (called built-in data) related to the program stored in the storage device such as the ROM 2 or the external storage device 10. Set up an electronic music device. The electronic music apparatus selects a program to be played in response to the operation of the program selection switch. In the network program operation mode, the electronic music apparatus is connected to the external server apparatus 11A connected to the electronic music apparatus via the communication network X. In the built-in program operation mode, a program is selected from the built-in data only in this electronic music apparatus. In accordance with the operation of the program playback switch, the electronic music apparatus can select from a net program (in the case of a network program operation mode) delivered from the server apparatus 11 in response to the program selection / distribution instruction or in the built-in data. Playback control such as starting / stopping playback of the selected program (in the case of the built-in program operation mode) is performed. Of course, this reproduction control may include not only reproduction start / stop but also controls such as fast forward, rewind, pause, and frame advance. In addition, the setting operator 5A is also a numeric keypad for inputting numeric data, a keyboard for inputting character data used for selecting / setting / controlling pitches, timbres, effects, etc., or a predetermined data displayed on the display 6A. Various operators such as a mouse used for operating the pointing device may be included. The setting operation detection circuit 5 detects the operation state of each switch, and outputs switch information corresponding to the operation state to the CPU 1 via the data and address bus 1D.

  The display circuit 6 is distributed to a display 6A composed of, for example, a liquid crystal display panel (LCD) or a CRT, but is distributed by an external server device 11A connected to the electronic music device via the communication network X, for example. For program listing screens that show possible online programs or built-in programs built into this electronic musical instrument, information screens that introduce the contents of selected programs, playback operation panel screens for program playback control, and program playback In response, a known screen such as a display screen for performing a predetermined display (for example, a musical score display or an image display corresponding to the music position) or the control state of the CPU 1 is displayed. By referring to these various types of information displayed on the display 6A, the user can easily perform operations related to selection / reproduction of programs, for example.

  The tone generator circuit 7 can simultaneously generate musical tone signals on a plurality of channels, and provides performance information generated in response to manual operation of the performance operator 4A by the user, which is given via the data and address bus 1D. Performance information generated according to the stored performance data, or entity data (for example, performance data, audio data, etc.) delivered from the external server device 11A connected to the electronic music device via the communication network X And a musical tone signal is generated based on the performance information and data. The musical sound signal generated from the sound source circuit 7 is given an effect via the effect circuit 8 and the like, and is generated from the sound system 8A including an amplifier and a speaker. Any conventional configuration may be used for the sound source circuit 7, the effect circuit 8, and the sound system 8A. For example, the tone generator circuit 7 may employ any of various tone synthesis methods such as FM, PCM, physical model, formant synthesis, etc., and may be configured by software processing by the CPU 1 or by dedicated hardware. May be.

  The nonvolatile memory 9 stores “program type information” and “net program information” (refer to FIG. 3 described later in detail). The external storage device 10 stores various data and various control programs executed by the CPU 1. When no control program is stored in the ROM 2, the control program is stored in the ROM 2 by storing the control program in the external storage device 10 (for example, a hard disk) and reading it into the RAM 3. The CPU 1 can be operated in the same manner as in the case. In this way, control programs can be easily added and upgraded. The external storage device 9 is not limited to a hard disk (HD), but a flexible disk (FD), a compact disk (CD-ROM / CD-RAM), a magneto-optical disk (MO), a DVD (Digital Versatile Disk), etc. Any storage device may be used as long as the storage device uses various external storage media. Alternatively, a semiconductor memory such as a flash memory may be used.

  The communication network interface (I / F) 11 is connected to a wired or wireless communication network X such as a LAN, the Internet, or a telephone line, and communicates with an external server device 11A (server computer) via the communication network X. This is an interface for connecting to the electronic musical instrument side a control program or various data from the server device 11A. Such a communication network interface 11 may be both wired and wireless and may include both. The server device 11A stores a large number of various data (see FIG. 2 to be described later in detail), and a large number of various data stored in response to a request from the electronic musical instrument with respect to the electronic musical instrument connected via the communication network X. The corresponding data can be downloaded or pseudo-streamed according to the data type. Needless to say, if the control program and various data are not stored in the ROM 2 or the external storage device 10 (for example, a hard disk), the control program and various data can be downloaded from the server device 11A.

  The MIDI interface (I / F) 12 is used for inputting performance data (MIDI data) in a MIDI format from another externally connected MIDI device 12A or the like to the electronic musical instrument, or from the electronic musical instrument in a MIDI format. Is an interface for outputting to the other MIDI device 12A or the like. The other MIDI device 12A may be any device that generates data in MIDI format in response to a manual performance operation by a user. Any type of operation device such as a keyboard type, a guitar type, a wind instrument type, a percussion instrument type, a gesture type, etc. (Or comprising an operation form).

  The performance operator 4A is not limited to a keyboard instrument, but may be any type of instrument such as a stringed instrument, a wind instrument, or a percussion instrument. In addition, the performance operator 4A, the display 6A, the sound source circuit 7 and the like are not limited to being built in one device body, but each device is configured separately, and each device is connected using a communication means such as a MIDI interface or various networks. Needless to say, it may be configured to do so. Furthermore, the electronic music apparatus according to the present invention is not limited to electronic musical instruments and personal computers, but can be applied to any form of apparatus / equipment such as a karaoke apparatus, a game apparatus, a portable communication terminal such as a mobile phone, and an automatic performance piano. You may apply. When applied to a portable communication terminal, not only when a predetermined function is completed with only the terminal, but also a part of the function is provided on the server side, and the predetermined function is realized as a whole system composed of the terminal and the server. You may make it do.

  As described above, when the electronic music apparatus shown in FIG. 1 is set to the network program operation mode, the electronic music apparatus receives distribution of various data stored in the external server apparatus 11A via the communication network X, and The network program is played back based on the distributed data. Here, various data related to program distribution stored in each of the server apparatus 11A and the electronic music apparatus will be described. First, various data that is stored in the server device 11A and can be distributed to the electronic music device by the server device 11A will be described with reference to FIG. FIG. 2 is a conceptual diagram illustrating an example of various data stored in the server device 11A.

  As shown in FIG. 2, the server device 11A stores data such as “program list”, “program content list (program file)”, “data group” in a ROM, RAM, nonvolatile memory, external storage device or the like. These data are distributed to the electronic music apparatus as needed. The “program list” is data for listing all net programs that can be distributed by the server apparatus 11A to the user. For example, a unique “program name” (locked in the figure) assigned to each program. , Jazz). When the server apparatus 11A is connected to the electronic music apparatus via the communication network X, the server apparatus 11A automatically downloads and distributes the “program list” to the electronic music apparatus.

  The “program structure content list” is data indicating content information regarding all the contents included in one program, and includes, for example, “data groups” such as performance data (MIDI data), audio data, moving image data, and still image data. Content information relating to the individual entity data included is stored in the program progression order (reproduction order). For example, one program starts with the opening MC (audio data), the first song (MIDI data), the MC (audio data), the second song (audio data), the third song (video data), and the ending MC (audio data). In this way, the “program configuration content list” stores content information regarding each entity data corresponding to the progression order (see the program configuration content list of program 1 in the figure). The content information is information that includes “content basic information”, “content URL”, “content number”, and the like, but since it is publicly known, detailed description thereof is omitted here. The server device 11A downloads and distributes a “program configuration content list” in response to a program selection instruction from an electronic music device connected via the communication network X. The “data group” is entity data corresponding to individual contents included in each program. For example, performance data (MIDI data), audio data, moving picture data, still picture data, and the like are used for generating contents. The data itself. The server apparatus 11A starts pseudo streaming distribution in response to a program playback instruction from an electronic music apparatus connected via the communication network X, and sequentially distributes individual entity data from the “data group”.

  Next, various data stored in the electronic music apparatus when the electronic music apparatus is set to the network program operation mode will be described with reference to FIG. FIG. 3 is a conceptual diagram showing an example of various data stored in the electronic music apparatus. However, although illustration is omitted here, the electronic music apparatus stores data similar to the data (program list, program configuration content list, data group) stored in the server apparatus 11A, such as the ROM 2, the external storage apparatus 10, and the like. The electronic music device can store a program on the electronic music device alone without receiving distribution from the server device 11A connected via the communication network X using the built-in data. It can also be played back (when the electronic music apparatus is set to the built-in program operation mode).

  As shown in FIG. 3, the electronic music apparatus stores data in the RAM 3 or the nonvolatile memory 9 according to the data type. Here, the “selected program list”, “program designation information”, “content list”, “content number”, “acquired data group” are stored in the RAM 3, and “program type information” and “network” are stored in the nonvolatile memory 9. Program information "is stored. The “selected program list” is a “program list” distributed from the server apparatus 11A connected via the communication network X, and the electronic music apparatus displays a list of programs being distributed by the server apparatus 11A based on the “program list”. Can do. The “program designation information” is data indicating a program selected by the user from the list of programs being distributed. The “content list” is a “program configuration content list” distributed from the server apparatus 11A connected via the communication network X, and is data indicating content contents included in the program selected by the user. “Content number” is data indicating the content currently being played back, and is, for example, a unique number assigned in advance for each content. This “content number” is appropriately updated to the content related to the content being reproduced as the program progresses.

  The “acquired data group” is the content data distributed from the external server device 11A connected to the electronic music device via the communication network X, that is, the server device 11A according to the program selection / playback operation by the user. To store entity data corresponding to a plurality of contents included in each program distributed pseudo-streaming from.

  On the other hand, the non-volatile memory 9 (or the external storage device 10) of the electronic music device stores “program type information” and “net program information”. “Program type information” is data indicating a program operation mode set in the electronic music apparatus in accordance with the operation of the mode setting switch by the user, that is, “network program operation mode” or “built-in program operation mode”. is there. The “net program information” is data indicating a program (or a program selected by the user) started to be played in response to an operation of the program playback switch by the user in the “network program operation mode”. These data stored in the non-volatile memory 9 (or the external storage device 10) are not erased when the electronic music apparatus is turned off, but are erased in accordance with an erase instruction from the user. Therefore, the “program type information” and “net program information” stored in the nonvolatile memory 9 (or the external storage device 10) when the power is turned off can be referred to when the power is turned on again. When “network program operation mode” is stored in “net program information”, information for specifying the server device 11A connected via the communication network X when the power is turned off (for example, a network address) URL (Uniform Resource Locator) and the like are also stored.

  Next, based on the net program stored in the server apparatus 11A and appropriately pseudo-streamed to the electronic music apparatus, or the built-in program stored in the nonvolatile memory (or external storage means) of the electronic music apparatus, these A specific process (program reproduction process) for reproducing a plurality of contents included in the program will be described. FIG. 4 is a flowchart showing an example of “program reproduction processing”. However, here, for convenience of illustration, the above processing is divided into the first half and the second half in the order of processing. 4A is a flowchart showing an example of the first half process in the “program reproduction process”, and FIG. 4B is a flowchart showing an example of the second half process subsequent to the first process in the “program reproduction process”. This process is a process started in response to the user turning on the electronic music device. Hereinafter, “program reproduction processing” will be described with reference to the flowcharts shown in FIGS. 4A and 4B.

  As shown in FIG. 4A, in step S1, program type information stored in the non-volatile memory 9 (or external storage device 10; the same applies hereinafter) of the electronic music device is acquired. In step S2, whether or not the acquired program type information is “network”, that is, when the electronic music device is turned off, the electronic music device is set to the “network program operation mode”. Based on the program type information, it is determined whether or not the network program has been reproduced by receiving the program distribution from the external server device 11A connected via the network X. If it is determined that the acquired program type information is not “network” (no in step S2), the process jumps to step S11.

  Step S11 executes processing in another operation mode. If the program type information acquired in step S1 is not “network”, the operation mode of the electronic music device is set to “built-in program operation mode” when the electronic music device is turned off, and communication is performed. It is not a state in which a program is distributed from an external server device 11A connected via the network X and a network program is being reproduced, but a program is being reproduced based on a built-in program stored in the nonvolatile memory 9. . Therefore, here, according to the “built-in program operation mode” in which the operation mode of the electronic music apparatus is set to “built-in program operation mode” and the built-in program can be played back when the power is turned on again. Set the electronic music device to the state. For example, a program list of built-in programs is read from the ROM 2 and a list of built-in programs is displayed on the display 6A. And according to user operation, the process etc. which read and reproduce the some content contained in the program selected from the program list from ROM2 in the order of reproduction | regeneration are performed.

  On the other hand, when it is determined that the acquired program type information is “network”, that is, when the electronic music device is turned off, the operation mode of the electronic music device is set to “network program operation mode”. If the program is distributed from the external server device 11A connected via the communication network X and the network program is being reproduced (yes in step S2), the program type information is stored. A net program list is acquired from the server device 11A specified by the URL or the like (step S3). In step S4, it is determined whether or not the net program information is stored in the nonvolatile memory 9 of the electronic music device. When it is determined that the net program information is not stored in the nonvolatile memory 9 (no in step S4), a predetermined net program determined in advance is set in the program designation information in the RAM 3 (step S8). The predetermined net program may be selected / set in advance by the user.

  If it is determined that the net program information is stored in the nonvolatile memory 9 (yes in step S4), the net program information is read (step S5), and the program corresponding to the read net program information is In S3, it is determined whether or not the program is included in the net program list acquired from the server device 11A (step S6). When it is determined that the program corresponding to the read net program information is not included in the program list acquired from the server device 11A, that is, the program stored in the server device 11A when the power is turned off. If the program has been deleted from the server device 11A before the power is turned on (no in step S6), a predetermined predetermined net program is deleted (corresponding to the read net program information). The program designation information in the RAM 3 is set as an alternative program of (program) (step S8).

  On the other hand, when it is determined that the program corresponding to the read net program information is included in the program list acquired from the server device 11A (yes in step S6), the program corresponding to the read net program information is stored in the RAM 3. Is set in the program designation information (step S7). Also, the operation mode of the electronic music apparatus is set to “network program operation mode”. In step S9, based on the set program designation information, a content list of programs corresponding to the program designation information is acquired from the server apparatus 11A connected via the communication network X, and a program playback / A control software program is activated, and the program stored in the program designation information is updated to a program display state based on the acquired content list, such as updating the display on the display 6A. In response to the instruction, the device is set to be in a playback standby state in which the program can be started immediately. In step S10, it is determined whether or not the current operation mode set in the electronic music apparatus is the “network program operation mode”. As already described, this operation mode is appropriately changed according to the operation of the mode setting switch by the user. When it is determined that the current operation mode is not the “network program operation mode”, that is, the “built-in program operation mode” (No in step S10), the processing in step S11 described above is executed. Here, “internal” is stored in the program type information of the nonvolatile memory 9 and the electronic music apparatus is set in a state in accordance with the “internal program operation mode” in which the internal program can be reproduced. When it is determined that the current operation mode is the “network program operation mode” (step S10: yes), the processing after step S12 shown in FIG. 4B is executed.

  As shown in FIG. 4B, step S12 determines whether or not a program selection operation based on the operation of the program selection switch or the like by the user has been performed. If it is determined that a program selection operation has been performed (Yes in step S12), the program designation information in the RAM 3 is updated and the updated program designation information is transmitted from the server device 11A connected via the communication network X. The above-mentioned program is acquired such that a content list of a program corresponding to the above is acquired, a program reproduction / control software program (not shown) is started, and the display on the display 6A is updated to the program display based on the acquired content list. A device setting for setting the program stored in the designated information in a playback standby state is performed (step S13). In step S14, it is determined whether or not a program reproduction start operation based on an operation of a program reproduction switch or the like by the user has been performed. If it is determined that the program playback start operation has been performed by the user (step S14: yes), “network” is stored in the program type information of the nonvolatile memory 9 (step S15). In step S16, the program (the program stored in the program designation information in the RAM 3) for which the reproduction start operation has been performed is stored in the net program information in the nonvolatile memory 9. In step S17, based on the acquired content list, the entity data corresponding to each content is acquired from the server device 11A in the playback order defined in the content list, and the acquired entity data is played back (plays back the program). . After the process of step S12 to step S18 is completed, the process returns to step S10 of FIG. 4A.

  As described above, the electronic music apparatus according to the present invention is configured such that the stored contents are not erased even if the power supply for supplying power is turned off, and the stored contents are not erased. Stores a program that has been distributed and reproduced from a server device connected via a communication network at the time of off. When the power is turned on, the server device is reconnected to check the program. When the same program as the stored program is stored in the server device, a plurality of programs included in the program are included. A content list that defines the playback order of the content is acquired from the server device, and the program is set in a playback standby state. When a program playback start instruction is given, a plurality of data corresponding to each content is sequentially received from the server device in the playback order defined in the acquired content list, and in parallel with the reception of the data. Then, a series of programs are pseudo-streamed based on the received data. According to this, the user can immediately start playing the same program as the program distributed from the server device at the time when the power is turned off, without having to redo the operation of selecting the program when the power is turned on. Is very convenient.

In addition, when a program corresponding to the program stored in the net program information is not stored in the server device 11A (for example, when it has been deleted from the server device 11A), it is limited to putting the predetermined program into a reproduction standby state. (Refer to steps S6 and S8 in FIG. 4A), the server apparatus 11A is inquired about an alternative program, and the user arbitrarily selects an alternative program from the program list of the alternative programs distributed from the server apparatus 11A in response to the inquiry. The selected alternative program may be put in a reproduction standby state.
Note that the timing for storing the net program information in the nonvolatile memory 9 (or the external storage device 10) is not limited to the time point when the user performs the program playback start operation (see steps S14 and S16 in FIG. 4B). It may be the time when the selection operation is performed.
Note that the device setting for putting the program into a playback standby state in the electronic music apparatus is not limited to the acquisition of the content list and the update of the display corresponding to the above-described dedicated program startup, but the user starts playback. Any other device setting may be used as long as it can start the reproduction of the program immediately in response to the instruction. For example, the distribution start of entity data from the server device based on the content list may be performed prior to the reproduction start instruction by the user.

1 is a block diagram of a hardware configuration showing an overall configuration of an electronic music apparatus according to the present invention. It is a conceptual diagram which shows one Example of the various data which a server apparatus memorize | stores. It is a conceptual diagram which shows one Example of the various data which an electronic music apparatus memorize | stores. It is a flowchart which shows one Example of the first half process of a program reproduction | regeneration process. It is a flowchart which shows one Example of the latter half process of a program reproduction | regeneration process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... CPU, 1A ... Timer, 2 ... ROM, 3 ... RAM, 4 ... Performance operation detection circuit, 5 ... Setting operation detection circuit, 4A ... Performance operation element, 5A ... Setting operation element, 6 ... Display circuit , 6A ... display, 7 ... sound source circuit, 8 ... effect circuit, 8A ... sound system, 9 ... non-volatile memory, 10 ... external storage device, 11 ... communication network interface, 11A ... server device, 12 ... MIDI interface, 12A ... MIDI equipment, 1D ... communication bus, X ... communication network

Claims (3)

An electronic music device that reproduces a series of programs composed of a plurality of contents in response to data distribution from a server device connected via a communication network,
Non-volatile storage means in which stored contents are not erased even when a power supply for supplying power is turned off, storing a program being played back when the power is turned off;
Re-connecting the server device in response to a power-on operation, and a program collating unit for collating the program stored in the storage unit with the program stored in the server device;
When the same program as the program stored in the storage means is stored in the server device in accordance with the collation of the program, a content list that defines the playback order of a plurality of contents included in the program is stored in the server device. If the same program as the program stored in the storage means is not stored in the server device, the program is included in an arbitrary program specified in advance. Setting means for obtaining a content list that defines the playback order of a plurality of content items from the server device and setting the designated program in a playback standby state ;
In response to a program playback start instruction, a plurality of data corresponding to each content are sequentially received from the server device in the playback order defined in the acquired content list, and in parallel with the reception of the data, An electronic music apparatus comprising reproduction means for performing pseudo streaming reproduction of a series of programs based on received data.   A first storage means in which a built-in program is stored in advance, wherein the first storage means includes a content list that defines the playback order of a plurality of contents included in the built-in program, and a plurality of data corresponding to the contents And those stored in advance,
  And further comprising an acquisition means for acquiring type information of a program stored in the nonvolatile storage means when the power is turned off in response to an operation of turning on the power,
  When the acquired type information of the program indicates that the program has been reproduced based on the built-in program, the first storage means is arranged in the reproduction order prescribed in the content list stored in advance in the first storage means. The electronic music apparatus according to claim 1, wherein the built-in program is reproduced based on a plurality of data corresponding to the contents stored in advance. On the computer,
Reproduced in response to data distribution from a server device connected via a communication network to nonvolatile storage means whose stored contents are not erased even when the power supply for supplying power is turned off. A procedure for storing a series of programs composed of a plurality of contents,
Reconnecting the server device in response to a power-on operation, and checking the program stored in the storage unit and the program stored in the server device;
When the same program as the program stored in the storage means is stored in the server device in accordance with the collation of the program, a content list that defines the playback order of a plurality of contents included in the program is stored in the server device. If the same program as the program stored in the storage means is not stored in the server device, the program is included in an arbitrary program specified in advance. Obtaining a content list that defines the playback order of a plurality of content items from the server device, and setting the designated program in a playback standby state ; and
In response to a program playback start instruction, a plurality of data corresponding to each content are sequentially received from the server device in the playback order defined in the acquired content list, and in parallel with the reception of the data, A program for executing a sequence of pseudo streaming playback of a series of programs based on received data.

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