JP2005157165A - Content distribution system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a content distribution system capable of distributing necessary and sufficient contents. <P>SOLUTION: The content distribution system includes an individual distribution information list transmitting means 106 for transmitting the list of information stored in a karaoke machine 12 to a center device 16, an acquisition/deletion information list generating means 108 for generating the list of information that the karaoke machines 12 should acquire according to the list sent by the individually distributed information list transmitting means 106, an acquisition/deletion information list transmitting means 110 for transmitting the list to the karaoke machine 12, an individual distribution information requesting means 112 for requiring the center device 16 to distribute specified information according to the list sent by the acquisition/deletion information list transmitting means 110, and an individual distribution information distributing means 114 for distributing the information requested by the individual distribution information requesting means 112 to the karaoke machine. Consequently, only necessary individual distribution information can be distributed to respective karaoke machines. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a content distribution system for distributing content from a center apparatus to a plurality of communication type information terminals via a predetermined communication line.

  There is known a content distribution system that distributes content from a center apparatus to a plurality of communication type information terminals via a predetermined communication line. For example, this is a karaoke data distribution system that distributes karaoke data to a plurality of communication karaoke apparatuses. Such a content distribution system is expected to be further developed as the core of the content business with the recent improvement of communication technology.

  By the way, in order to always allow new content to be used on the side of the plurality of communication type information terminals, distribution of content from the center device is normally repeated periodically for the plurality of communication type information terminals. However, in such a content distribution system, content that has already been distributed and stored in the communication type information terminal is distributed again, content that should be distributed is not distributed, or content whose validity period has ended Problems such as being stored in the communication information terminal have been pointed out. Thus, a content distribution system is known in which content stored in a communication information terminal is notified to a center device in advance and content is distributed from the center device. For example, the information file management method of the communication karaoke apparatus described in Patent Document 1 is that. According to the information file management method of this communication karaoke apparatus, a necessary content list that specifies necessary content together with the content is downloaded, and on the basis of the necessary content list, the necessary content among the downloaded contents is added and already added. By deleting unnecessary contents from the stored contents, it is possible to suitably manage the contents stored in the communication karaoke apparatus.

Japanese Patent No. 2985750

  In the prior art, the required content list is downloaded from the center device side, the list is compared with the information stored in the karaoke device, and the required content list is described and stored in the karaoke device. The karaoke device side determines the information that is not available and requests the download to the center device to acquire the content, while the karaoke device side also determines the information that is not listed in the required content list and is stored in the karaoke device side. And delete the content. However, in the configuration in which the content to be acquired and the content to be deleted are determined on the karaoke apparatus side, in addition to taking an excessive amount of time to update the content, the load also increases. Also, when dealing with version upgrades of content, it is necessary to rewrite software for each individual karaoke device, which has the disadvantage of being very complicated.

  The present invention has been made against the background of the above circumstances, and the object of the present invention is to provide a content distribution system that realizes a load reduction of a communication type information terminal and a software specification change as soon as possible. It is in.

  In order to achieve such an object, the gist of the present invention is a content distribution system for distributing content from a center device to a plurality of communication type information terminals via a predetermined communication line, wherein the communication type information Content list transmission means provided in the communication type information terminal for transmitting a list of contents stored in the terminal to the center apparatus, and the communication type information based on the content list sent by the content list transmission means An acquired content list creating means provided in the center device for creating a list of contents to be acquired by the terminal, and a list of contents to be acquired created by the acquired content list creating means are transmitted to the communication type information terminal In order to do so, the acquired content list transmission means provided in the center device, and the acquired content list transmission Content distribution request means provided in the communication type information terminal for requesting the center apparatus to distribute predetermined content based on a list of contents to be acquired sent by the means, and requested by the content distribution request means Content distribution means provided in the center device for distributing the content to be transmitted to the communication type information terminal.

  According to this configuration, in order to transmit the list of contents stored in the communication type information terminal to the center apparatus, the content list transmission unit provided in the communication type information terminal and the content list transmission unit send the list. The acquired content list creating means provided in the center device for creating a list of contents to be acquired by the communication type information terminal based on the content list, and the content to be acquired created by the acquired content list creating means Based on the list of contents to be acquired sent by the acquired content list transmitting means and the acquired content list transmitting means provided in the center apparatus to transmit the list of communication information to the communication type information terminal. A container provided in the communication type information terminal for requesting delivery of a predetermined content. A distribution request unit, and a content distribution unit provided in the center device for distributing the content requested by the content distribution request unit to the communication type information terminal. It can be distributed from the device to the communication type information terminal. In addition, since the acquired content list creation means determines the content to be acquired by the communication type information terminal in the center device, the processing speed is excellent by collectively processing the center device. In addition, it is possible to easily change the setting when it is desired to change the delivery contents. That is, it is possible to provide a content distribution system that realizes a load reduction of a communication type information terminal and a software specification change as quickly as possible.

  Preferably, the center device creates a list of contents to be deleted by the communication information terminal based on a list of contents sent by the contents list transmission means, Delete content list transmission means for transmitting a list of contents to be deleted created by the deleted content list creation means to the communication type information terminal, wherein the communication type information terminal includes the deletion content list transmission means. The content deletion means for deleting the content stored in the communication type information terminal based on the list of contents to be deleted sent by. In this way, there is an advantage that content that is no longer necessary in the communication type information terminal can be deleted in a practical manner.

  Preferably, the content is an individual distribution content that is associated with identification information for identifying the communication information terminal and that is distributed only to the communication information terminal identified by the identification information. In this way, there is an advantage that necessary and sufficient individual distribution content can be distributed to a group of communication information terminals identified by predetermined identification information.

  Preferably, the communication-type information terminal is a communication-type karaoke apparatus that receives distribution of information between songs that is output between songs for which performance music is not output as the content. In this way, there is an advantage that sufficient information between songs can be distributed to a plurality of communication type karaoke apparatuses.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram for explaining a content distribution system 10 according to an embodiment of the present invention. A plurality of communication karaoke devices (hereinafter simply referred to as karaoke devices) 12 which are communication information terminals respectively installed in a karaoke box, a snack shop, a store such as an inn, or a general home are used for public telephone lines and cable broadcasting. It is connected to a center device 16 of a content distribution service provider through a communication line 14 such as a cable or an optical fiber. The center device 16 is a server for storing digital contents such as karaoke information and information between songs, managing input / output, etc., so that the karaoke device 12 can always play new songs. Alternatively, the new karaoke information and the latest inter-song information are periodically distributed to the plurality of karaoke apparatuses 12 via the communication line 14 so that the latest inter-song information can be output.

  FIG. 2 is a block diagram illustrating the configuration of the karaoke apparatus 12. The karaoke apparatus 12 includes a video display device 18 such as a CRT, an MPEG video decoder 20 as a background video playback device, a video mixer 22 as a video synthesis device, an amplifier mixer 24, a speaker 26, a microphone 28, and an input. An operation panel 30 that is a device, a CPU 32 that is a central processing unit, a ROM 34, a RAM 36, a hard disk 38 that is a storage device, a modem 40, a CRT controller 42, and an input signal that processes input signals from the input device such as the operation panel 30. An output interface 44, a synthesizer 46 for synthesizing and outputting performance information, and an MPEG audio decoder 48 are provided.

  The CPU 32 is a so-called computer system that processes and controls electronic information based on a predetermined program stored in the ROM 34 while using the temporary storage function of the RAM 36, and is operated by a user (user) of the karaoke apparatus 12. When a predetermined karaoke performance song is selected, karaoke performance control is executed based on the karaoke information. That is, the karaoke information corresponding to the karaoke performance song selected by the user is read from the hard disk 38 to the RAM 36, or the performance information is sent from the RAM 36 to the synthesizer 46 as the performance of the karaoke performance song progresses. Based on the lyric information, a lyric character image is generated and sent to the CRT controller 42. When a song is selected, a song title character image is generated and sent to the CRT controller 42, or a predetermined background image is reproduced by the MPEG video decoder 20. Or control such as outputting predetermined inter-music information consisting of video and audio between songs for which karaoke performance music is not output. Further, content update control described later is executed in accordance with a predetermined operation.

  The operation panel 30 is used for the user to select a desired karaoke performance piece, input a song selection number of the performance piece, adjust the pitch of the performance piece, adjust the volume balance between the performance and the song, In addition, the input device includes operation buttons (switches) or knobs for performing various adjustments such as echo, volume, and tone. In addition, the karaoke device 12 includes a remote controller 50 that functions as an input device in the same manner as the operation panel 30 in order to remotely execute a part of the functions of the operation panel 30.

  The MPEG video decoder 20 is a background video playback device that decodes background video information stored in the hard disk 38 into a video signal and plays back a background video during karaoke performance. Further, the video mixer 22 is generated by the CPU 32 based on the lyrics information read from the hard disk 38 and output from the CRT controller 42 and the background sent from the MPEG video decoder 20 or the like. This is a video synthesis device that synthesizes video and displays it on the video display device 18.

  The synthesizer 46 is a sound source that generates music signals such as musical instrument performance signals based on performance information read from the hard disk 38 and sent. The generated music signal is converted into an analog signal and sent to the amplifier mixer 24. The amplifier mixer 24 mixes the transmitted music signal and the user's singing voice input via the microphone 28, and those signals are electrically amplified. Then, the mixed sound is output from the speaker 26.

  The MPEG audio decoder 48 is a decoder for decoding an audio signal compressed in the MPEG (Moving Picture Experts Group) format. The decoded audio decoded by the MPEG audio decoder 48 is output from the speaker 26 via the amplifier mixer 24.

  The modem 40 is a device for connecting the karaoke device 12 to the communication line 14. The karaoke device 12 is connected to the communication line 14 via the modem 40, and information can be transmitted to and received from the center device 16 via the communication line 14.

  FIG. 3 is a diagram for explaining various databases provided in the hard disk 38. As shown in FIG. 3, the hard disk 38 is provided with a karaoke database 52 for storing karaoke information and an inter-music information database 54 for storing inter-music information. The karaoke information and the inter-song information distributed from the center device 16 through the karaoke are stored in the karaoke database 52 and the inter-song information database 54, respectively.

  The karaoke information is composed of performance information for generating performance sounds and lyric information for generating lyric character images (lyric telops), and is identified by a music selection number unique to each performance tune which is a content ID. The The karaoke database 52 includes, for example, karaoke information of each performance song identified by the song selection number, that is, title information including a song title and a singer name, background video designation information for designating a background video, MIDI (Musical Instrument Digital Interface) ) Performance information compressed in the form, lyrics information, and the like are stored.

  The inter-song information is information on texts (telops) such as new music information and music selection ranking output between songs for which karaoke performance music is not output, advertisements consisting of video and audio, or activation of the karaoke device 12 Is the initial information displayed on the video display device 18 from when the karaoke performance is started to output, and is identified by the file name which is the content ID. In the inter-music information database 54, for example, inter-music information composed of video and audio compressed in MPEG format is stored, and for each inter-music information, an output start date, an output end date, an output time zone, The output day of the week and the presence or absence of audio can be set.

  The inter-music information is preferably common distribution information that is common information among a plurality of karaoke devices 12 connected to the center device 16, and each karaoke device 12 or a store where the karaoke device 12 is installed. Are classified into any of the individual distribution information that is unique (original) inter-song information, and any one of the common distribution information database 56 and the individual distribution information database 58 provided in the inter-song information database 54 Each is separated and memorized. The common distribution information stored in the common distribution information database 56 includes, for example, new music information output between songs by a conventional karaoke device, character information such as a music selection ranking, a predetermined region or the whole country. A wide-area advertisement to be displayed, or default initial information displayed on the video display device 18 from the time the karaoke device 12 is activated until the output of the karaoke performance music is started. 12 is a common distribution content distributed in common. On the other hand, the individual distribution information stored in the individual distribution information database 58 is a store-specific advertisement indicating the content and price of recommended items of the store where the karaoke device 12 is installed, an advertisement regarding the franchise chain to which the store belongs, or The initial information of the store original displayed on the video display device 18 from the start of the karaoke device 12 until the output of the karaoke performance is started, and the karaoke device installed in the store 12 is an individual distribution content distributed only to the karaoke apparatus 12 having a predetermined relationship including 12.

  FIG. 4 is a block diagram illustrating the configuration of the center device 16. As shown in FIG. 4, the center device 16 includes a so-called microcomputer system that performs signal processing according to a program stored in advance in a ROM 62 by using a temporary storage function of a RAM 64 by a CPU 60 that is a central processing unit. Yes. Further, a video display device 68 such as a CRT controlled by a CRT controller 66, a keyboard 72 which is an input device connected via an interface 70, a storage device 74 such as a hard disk, and a CPU 60 are connected to the communication line 14. A terminal adapter 76 is provided.

  As shown in FIG. 4, the storage device 74 is provided with a karaoke database 78 for storing the karaoke information and an inter-song information database 80 for storing the inter-song information. 80 includes a common distribution information database 82 for storing the common distribution information and an individual distribution information database 84 for storing the individual distribution information. In addition, an identification information database 86 for storing identification information for identifying the karaoke apparatus 12 that is a content distribution target is provided. This identification information is preferably a telephone number, a manufacturing number (serial number), an IP address or the like used for transmission / reception of information, and indicates the position of each karaoke device 12 in the network by the communication line 14. . The individual distribution information stored in the individual distribution information database 84 is associated with this identification information, and only the karaoke device 12 identified by the associated identification information is targeted for distribution.

  FIG. 5 is a functional block diagram showing control functions of the karaoke device 12 and the center device 16. The identification information transmission unit 100, individual distribution information list transmission unit 106, individual distribution information request unit 112, individual distribution information update unit 116, and individual distribution information deletion unit 118 shown in FIG. 5 are provided in the CPU 34 of the karaoke apparatus 12. The individual distribution information presence / absence determination unit 102, the individual distribution information presence / absence notification unit 104, the acquisition / deletion information list creation unit 108, the acquisition / deletion information list transmission unit 110, and the individual distribution information distribution unit 114, This is a control function provided in the CPU 60 of the center device 16.

  The identification information transmitting means 100 transmits the identification information of the karaoke device 12 to the center device 16. Preferably, the position of the karaoke device 12 in the network by the communication line 14 such as the telephone number or IP address of the karaoke device 12 by communicating with the center device 16 through the communication line 14. Is sent to the center device 16.

  The individual distribution information presence / absence determining means 102 determines whether or not the individual distribution information associated with the identification information of the karaoke apparatus 12 sent by the identification information transmitting means 100 is stored in the individual distribution information database 84. To do. That is, it is determined whether or not there is individual distribution information targeted for distribution to the karaoke apparatus 12 identified by the identification number. The individual distribution information presence / absence notification unit 104 notifies the karaoke apparatus 12 of the determination result of the individual distribution information presence / absence determination unit 102.

  The individual distribution information list transmission unit 106 is a function corresponding to the content list transmission unit, and when the determination result of the individual distribution information presence determination unit 102 sent by the individual distribution information presence notification unit 104 is affirmative, that is, When receiving notification that there is individual distribution information for distribution to the karaoke device 12, a list of individual distribution information stored in the individual distribution information database 58 (for example, a list of file names of the individual distribution information) ) To the center device 16. Further, the individual distribution information deleting means 118 described later is preferably used when the determination result of the individual distribution information presence / absence determination means 102 sent by the individual distribution information presence / absence notification means 104 is negative, that is, the karaoke apparatus 12. When the notification that there is no individual distribution information to be distributed is received, all the individual distribution information stored in the individual distribution information database 58 is deleted.

  The acquisition / deletion information list creation unit 108 is a function corresponding to the acquired content list creation unit and the deletion content list creation unit, and is based on the list of individual distribution information sent by the individual distribution information list transmission unit 106. A list of individual distribution information to be acquired by the karaoke apparatus 12 and individual distribution information to be deleted is created. Preferably, the individual distribution information to be distributed to the karaoke apparatus 12 stored in the individual distribution information database 84 and the karaoke apparatus 12 actually transmitted by the individual distribution information list transmission means 106 are stored. A list of individual distribution information that should be distributed to the karaoke device 12 but that is not actually stored, and that should be acquired as a list of individual distribution information to be acquired. Although it should not be distributed to the karaoke device 12, a list of file names of the individual distribution information that is actually stored is created as a list of individual distribution information to be deleted. The acquisition / deletion information list transmission unit 110 is a function corresponding to the acquisition content list transmission unit and the deletion content list transmission unit, and the individual karaoke apparatus 12 created by the acquisition / deletion information list creation unit 108 should acquire. A list of distribution information and individual distribution information to be deleted is transmitted to the karaoke apparatus 12.

  The individual distribution information request unit 112 corresponds to the content distribution request unit, and is based on the list of individual distribution information to be acquired by the karaoke apparatus 12 sent by the acquisition / deletion information list transmission unit 110. The center device 16 is requested to distribute predetermined individual distribution information. Preferably, a list of file names of individual distribution information to be acquired sent by the acquisition / deletion information list transmission means 110 is transmitted to the center device 16 together with a distribution request.

  The individual distribution information distribution unit 114 corresponds to the content distribution unit, and distributes the individual distribution information requested by the individual distribution information request unit 112 to the karaoke apparatus 12.

  The individual distribution information update unit 116 corresponds to the content update unit, and stores the individual distribution information distributed by the individual distribution information distribution unit 114 in the individual distribution information database 58. The individual distribution information deletion unit 118 corresponds to the content deletion unit, and is based on the list of individual distribution information to be deleted by the karaoke apparatus 12 sent by the acquisition / deletion information list transmission unit 110. The predetermined individual distribution information stored in the distribution information database 58 is deleted. Preferably, the individual distribution information included in the list of file names of the individual distribution information to be deleted sent by the acquisition / deletion information list transmission unit 110 is deleted from the individual distribution information database 58.

  FIG. 6 is a flowchart for explaining content update control by the CPU 32 of the karaoke apparatus 12, and is repeatedly executed at a predetermined cycle.

  First, in step (hereinafter, step is omitted) SA1 corresponding to the identification information transmitting means 100, identification information of the karaoke device 12 is transmitted to the center device 16. Next, in SA2, it is determined whether or not a notification is received from the center apparatus 16 that there is individual distribution information for distribution of the karaoke apparatus 12. If the determination at SA2 is negative, the routine is terminated after all the individual distribution information stored in the individual distribution information database 58 is deleted at SA8, but the determination at SA2 is affirmed. In the case where the individual distribution information list is transmitted, the list of individual distribution information stored in the individual distribution information database 58 is transmitted to the center device 16 in SA3 corresponding to the individual distribution information list transmission means 106. Next, in SA4, a list of individual distribution information to be acquired by the karaoke apparatus 12 and individual distribution information to be deleted is received from the center apparatus. Next, in SA5 corresponding to the individual distribution information requesting unit 112, predetermined individual distribution information is sent to the center device 16 based on the list of individual distribution information to be acquired by the karaoke apparatus 12 sent in SA4. Delivery is required. Next, in SA 6 corresponding to the individual distribution information update unit 116, the individual distribution information distributed from the center device 16 is received and stored in the individual distribution information database 58. In SA7, the predetermined individual distribution information stored in the individual distribution information database 58 is deleted based on the list of individual distribution information to be deleted by the karaoke apparatus 12 sent in SA4. The routine is terminated. In the above control, SA7 and SA8 correspond to the individual distribution information deleting unit 118.

  FIG. 7 is a flowchart for explaining content distribution control by the CPU 60 of the center device 16 and is repeatedly executed at a predetermined cycle.

  First, in SB1, the identification information of the karaoke device 12 is received from the karaoke device 12. Next, in SB2 corresponding to the individual distribution information presence / absence determination means 102, is individual distribution information associated with the identification information of the karaoke apparatus 12 sent in SB1 stored in the individual distribution information database 84? It is determined whether or not. If the determination of SB2 is negative, the routine is terminated after a notification that there is no individual distribution information for karaoke device 12 to be distributed is transmitted to karaoke device 12 in SB9. When the determination of SB2 is affirmed, in SB3, a notification that there is individual distribution information for distributing the karaoke device 12 is transmitted to the karaoke device 12. Next, in SB4, a list of individual distribution information stored in the karaoke device 12 is received from the karaoke device 12. Next, in SB 5 corresponding to the acquisition / deletion information list creation means 108, the individual distribution information to be acquired by the karaoke apparatus 12 based on the list of individual distribution information sent in SB 4 and the individual distribution to be deleted A list of information is created. Next, in SB 6 corresponding to the acquisition / deletion information list transmission means 110, the list of the individual distribution information to be acquired by the karaoke device 12 and the individual distribution information to be deleted created in SB 5 is sent to the karaoke device 12. Sent. Next, in SB7, it is determined whether or not a distribution request for individual distribution information has been received from the karaoke apparatus 12. If the determination at SB7 is negative, the routine is terminated accordingly. If the determination at SB7 is affirmative, at SB8 corresponding to the individual distribution information distribution means 114, the karaoke apparatus 12 After the individual distribution information requested from is distributed to the karaoke apparatus 12, this routine is terminated. In the above control, SB 3 and SB 9 correspond to the individual distribution information presence / absence notification means 104.

  Thus, according to the present embodiment, the individual distribution information list transmission means 106 (SA1) provided in the karaoke apparatus 12 for transmitting the list of the individual distribution information stored in the karaoke apparatus 12 to the center apparatus 16. And an acquisition / providing unit provided in the center device 16 for creating a list of individual distribution information to be acquired by the karaoke apparatus 12 based on the list of individual distribution information sent by the individual distribution information list transmitting means 106. A deletion information list creation means 108 (SB5) and an acquisition provided in the center apparatus 16 for transmitting to the karaoke apparatus 12 a list of individual distribution information to be acquired created by the acquisition / deletion information list creation means 108 Deletion information list transmission means 110 (SB6) and individual items to be acquired sent by the acquisition / deletion information list transmission means 110 The individual distribution information requesting means 112 (SA5) provided in the karaoke apparatus 12 for requesting the center apparatus 16 to distribute predetermined individual distribution information to the center apparatus 16 based on the list of communication information, and the individual distribution information requesting means 112 Since it includes the individual distribution information distribution means 114 (SB8) provided in the center device 16 for distributing the required individual distribution information to the karaoke device 12, only the necessary individual distribution information is included in the center device 16. Can be distributed to each karaoke device 12. That is, it is possible to provide the content distribution system 10 that realizes the load reduction of the communication information terminal and the software specification change as quickly as possible.

  Further, since the acquisition / deletion information list creation means 108 determines the individual distribution information to be acquired by the karaoke apparatus 12 in the center apparatus 16, the center apparatus 16 performs a determination process collectively. It is possible to provide the content distribution system 10 having an excellent processing speed. Moreover, when it is desired to change the criteria for the determination, the configuration in which the determination is made in each karaoke device 12 is complicated because the program must be distributed to a large number of karaoke devices 12 and replaced. The configuration for performing the determination has an advantage that the setting can be changed as easily as possible by incorporating a program in one center device 16.

  The acquisition / deletion information list creation means 108 creates a list of individual distribution information to be deleted by the karaoke apparatus 12 based on the list of individual distribution information sent by the individual distribution list transmission means 106. The acquisition / deletion information list transmission means 110 transmits the list of individual distribution information to be deleted created by the acquisition / deletion information list creation means 108 to the karaoke apparatus 12, and the karaoke apparatus 12 is an individual distribution information deletion unit 118 (SA7) that deletes the individual distribution information stored in the karaoke apparatus 12 based on the list of individual distribution information to be deleted sent by the acquisition / deletion information list transmission unit 110. , SA8) is included, and the individual distribution information that is no longer necessary in the karaoke apparatus 12 is deleted in a practical manner. There is an advantage that kill.

  Further, the individual distribution information deleting unit 118 sets the karaoke apparatus 12 as a distribution target when the determination result of the individual distribution information presence / absence determination unit 102 sent by the individual distribution information presence / absence notification unit 104 is negative. When the notification that the individual distribution information does not exist is received, all the individual distribution information stored in the individual distribution information database 58 is deleted, so that the content distribution system 10 is not eligible for the content distribution service. There is an advantage that the use of the individual distribution information in the karaoke apparatus 12 can be easily prevented.

  Further, the individual distribution information that is the content in the content distribution system 10 is associated with the identification information for identifying the karaoke device 12, and the individual distribution content that targets only the karaoke device 12 identified by the identification information. Therefore, there is an advantage that necessary and sufficient individual distribution contents can be distributed to the group of karaoke apparatuses 12 identified by the predetermined identification information.

  The preferred embodiments of the present invention have been described in detail with reference to the drawings. However, the present invention is not limited to these embodiments, and may be implemented in other modes.

  For example, in the above-described embodiment, the content distribution system 10 that distributes information between songs as content to the communication karaoke apparatus 12 that is a communication information terminal has been described. However, the present invention is not limited to this, For example, a system for distributing music data to be streamed as BGM from a center device to a plurality of music playback devices via a predetermined communication line, a system for distributing game applications to a plurality of arcade game machines, etc. The present invention is widely applied to a content distribution system that distributes content from a center apparatus to a plurality of communication information terminals via a predetermined communication line.

  In the above-described embodiment, the content distribution system 10 distributes inter-song information output between songs for which performance music is not output as content to the karaoke apparatus 12. As a matter of course, it is possible to distribute karaoke information. Since there is karaoke information that is distributed in a limited area or store, such as a song of an artist who is active in a predetermined area, a mode in which karaoke information is distributed as individual distribution contents is also conceivable.

  In the above-described embodiment, the individual distribution information is stored in the hard disk 38 provided in each karaoke device 12. For example, a storage device of a private server connected to a plurality of karaoke devices 12. The individual distribution information may be stored in the karaoke device 12, and the individual distribution information may be read from the storage device of the private server at any time by each karaoke device 12. Further, the individual distribution information is stored in a hard disk 38 provided in one karaoke device 12 among a plurality of karaoke devices 12 arranged in the store, and each karaoke device 12 causes the karaoke device 12 from the hard disk 38 of the karaoke device 12 as needed. Individual distribution information may be read out. According to such an aspect, there is an advantage that a capacity of a storage device for storing the individual distribution information can be reduced.

  In the above-described embodiment, the individual distribution information deleting unit 118 stores the individual distribution information database 58 in the individual distribution information database 58 when receiving a notification that there is no individual distribution information targeted for distribution to the karaoke apparatus 12. Although all the individual distribution information is deleted, such deletion may not be performed and the distribution of the individual distribution information from the center device 16 to the karaoke device 12 may be prohibited. For example, when the installation registration is changed from the store A belonging to the same franchise chain to the store B, a plurality of karaoke apparatuses 12 may be temporarily excluded from the registration of the content distribution service by the content distribution system 10. This is to prevent unnecessary deletion and redistribution from being performed.

  In addition, although not illustrated one by one, the present invention is implemented with various modifications within a range not departing from the gist thereof.

It is a figure explaining the content delivery system which is one Example of this invention. It is a block diagram explaining the structure of the karaoke apparatus contained in the content delivery system of FIG. It is a figure explaining the various databases provided in the hard disk contained in the karaoke apparatus of FIG. It is a block diagram explaining the structure of the center apparatus contained in the content delivery system of FIG. It is a functional block diagram which shows the control function of the karaoke apparatus of FIG. 2, and the center apparatus of FIG. It is a flowchart explaining the content update control by the karaoke apparatus of FIG. It is a flowchart explaining the content delivery control by the center apparatus of FIG.

Explanation of symbols

10: Content distribution system 12: Communication karaoke device (communication information terminal)
14: Communication line 16: Center device 106: Individual distribution information list transmission means (content list transmission means)
108: Acquisition / deletion information list creation means (acquisition / deletion content list creation means)
110: Acquisition / deletion information list transmission means (acquisition / deletion content list transmission means)
112: Individual distribution information request means (content distribution request means)
114: Individual distribution information distribution means (content distribution means)
118: Individual distribution information deletion means (content deletion means)

Claims (4)

A content distribution system for distributing content from a center device to a plurality of communication type information terminals via a predetermined communication line,
Content list transmission means provided in the communication type information terminal for transmitting a list of contents stored in the communication type information terminal to the center device;
An acquired content list creating means provided in the center device for creating a list of contents to be acquired by the communication type information terminal based on a list of contents sent by the content list transmitting means;
An acquired content list transmitting means provided in the center device for transmitting a list of contents to be acquired created by the acquired content list creating means to the communication type information terminal;
Content distribution request means provided in the communication type information terminal for requesting the center apparatus to distribute predetermined contents based on a list of contents to be acquired sent by the acquired content list transmission means;
A content distribution system comprising: content distribution means provided in the center device for distributing content requested by the content distribution request means to the communication type information terminal. The center device creates a list of contents to be deleted by the communication information terminal based on a list of contents sent by the contents list transmission means;
A deleted content list transmitting means for transmitting a list of contents to be deleted created by the deleted content list creating means to the communication type information terminal,
2. The communication type information terminal includes content deletion means for deleting content stored in the communication type information terminal based on a list of contents to be deleted sent by the deletion content list transmission means. Content distribution system. The content distribution according to claim 1 or 2, wherein the content is associated with identification information for identifying the communication information terminal, and is an individual distribution content targeted for distribution only to the communication information terminal identified by the identification information. system. The content distribution system according to any one of claims 1 to 3, wherein the communication type information terminal is a communication type karaoke apparatus that receives distribution of inter-song information that is output between songs for which performance music is not output as the content. .

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