JP2009015439A - Network system, server device, program, and play list information transmission/reception method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a play list which gives high satisfaction to a user. <P>SOLUTION: This server device 20 capable of making communication with a plurality of terminals through a network 30 is provided with a server storage means 107-2 for storing a first play list including at least one musical piece name and the transmission priority of every first play list to be transmitted to second terminal among a plurality of terminals; and a play list retrieval means 105-2 for retrieving a first play list based on a play list transmission request including at least one musical piece name received from the second terminal. The play list retrieval means retrieves the first play list including the musical piece name included in the play list transmission request from among the plurality of first play lists stored in the server storage means, and the server storage means updates transmission priority based on evaluation for the first play list received from the second terminal. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a network system for transmitting and receiving a playlist including a song name using a network, a server device for constructing the system, a program for controlling the server device, and the system. The present invention relates to a program for controlling a terminal device and a playlist information transmission / reception method using the system.

  Conventionally, a network system using a network such as the Internet has been realized, and an information processing system for centrally managing contents regardless of possession or not possession has been proposed.

  For example, in Japanese Patent Application Laid-Open No. 2006-260167 (Patent Document 1), the information generation apparatus is managed by a storage unit that stores a first playlist for managing grouped contents and a first playlist. Generation means for generating organization information including metadata of content managed by the first playlist, which is information used when another device creates the second playlist that manages the same content as the content A technique is disclosed.

  Japanese Patent Laying-Open No. 2005-300772 (Patent Document 2) discloses a technique in which a music introduction system includes a user-side audio system and a management center that manages music information, and performs data communication with each other. Yes. In the music introduction system, the audio system on the user side includes a preference DB that stores preference data (user information and reproduction music related information) indicating the user's music preference, and a music information DB that stores music information. The management center is configured to acquire the preference data by data communication and search the music information DB for music information that matches the preference data.

In addition, Japanese Patent Laid-Open No. 2006-277880 (Patent Document 3) discloses that a user's terminal sequentially combines one of the user's playlists and one of the other users' playlists, and plays in each combination. A technique for calculating the similarity between lists as (number of songs common to own playlist and other playlists) / (smaller of the number of songs of own playlist and other playlists) is disclosed. ing. The terminal includes a combination whose calculated similarity exceeds a threshold value (= 0.5) and is included in the owned music list and the other playlist, but not included in the own playlist. Are added to the own playlist, and the songs not included in the owned song list but included in the other playlist are registered in the purchased song candidate list.
JP 2006-260167 A JP 2005-300772 A JP 2006-277880 A JP 2003-122791 A

  However, in the information generation device and the music introduction system described in Patent Documents 1 to 4, whether or not the playlist stored in the server device or the terminal device matches the preference of the user who downloaded the playlist. It is difficult to constantly improve (automatically) the playlist transmission / reception processing to be preferable for the user. That is, in the conventional system, it is difficult to continue providing a playlist that actually matches the user's preference.

  The present invention has been made to solve the above problems, and a main object of the present invention is to provide a network system, a server device, a program, and a program capable of providing a playlist that gives a high degree of satisfaction to the user. It is to provide a playlist transmission / reception method.

  According to an aspect of the present invention, there is provided a network system including a server device and a plurality of terminal devices that receive playlist information from the server device via a network, and the server device includes a plurality of terminal devices. First playlist information including at least one song name received from each of the first terminal devices, transmission priority associated with each of the first playlist information, and song data having a song name And a server storage means for storing the distribution history information of the music data transmitted to the second terminal device, a playlist including the number of songs desired to be transmitted received from the second terminal device and at least one music name Based on the information transmission request and the distribution history information, at least one satisfying a predetermined condition from the first playlist information stored in the server storage means Playlist information search means for searching for the first playlist information, the playlist information search means including the song name included in the playlist information transmission request, and the playlist information transmission request and distribution history information. A server transmission / reception means for searching for the first playlist information including the number of songs desired to be transmitted that includes a song name not included in the list, and transmitting the searched first playlist information to the second terminal device; The server transmission / reception means updates the transmission priority based on the evaluation of the first playlist information received from the second terminal device, and the first playlist information transmitted to the second terminal device. The server transmission / reception means responds to the music transmission request including the music name received from the second terminal device. The music data having the music name is distributed to the second terminal device, the distribution history information is updated, and each terminal device stores the third playlist information including at least one music name. And a terminal transmission / reception means for transmitting a playlist information transmission command including a desired number of songs to be transmitted and at least one song name to the server device, wherein the terminal transmission / reception means transmits the third playlist information to the first Terminal display means for displaying the first playlist information transmitted to the server device as the play list information and received from the server device, and the terminal storage means stores the first play list information. Accordingly, the first playlist information is stored as the third playlist information, and the terminal display means stores the music from the first playlist information received from the server device. A selection screen for selecting a name is displayed, and the terminal transmission / reception means transmits a music transmission request including the selected music name to the server device in response to a selection command for selecting the music name, and the terminal display means Then, an input screen for accepting an input of evaluation for the first playlist information stored in the terminal storage unit is displayed, and the terminal transmitting / receiving unit transmits the input evaluation to the server device in response to the input of the evaluation. .

  According to another aspect of the present invention, a network system including a server device and a plurality of terminal devices that receive playlist information from the server device via a network, the server device includes at least one song name Server storage means for storing first playlist information including the transmission priority associated with each of the first playlist information, and at least one song name received from the second terminal device. Playlist information search means for searching for at least one first playlist information satisfying a predetermined condition from the first playlist information stored in the server storage means based on a playlist information transmission request including And the playlist information search means detects the first playlist information including the song name included in the playlist information transmission request. And server transmission / reception means for transmitting the retrieved first playlist information to the second terminal device, wherein the server transmission / reception means evaluates the first playlist information received from the second terminal device. Based on the terminal device, each of the terminal devices has terminal storage means for storing third playlist information including at least one song name, and playlist information transmission command including at least one song name. And a terminal display means for displaying the first playlist information received from the server apparatus, and the terminal storage means stores the first playlist information. Accordingly, the first playlist information is stored as the third playlist information, and the terminal display means is responsive to the first playlist information stored in the terminal storage means. It displays an input screen for accepting an input of evaluation that, the terminal transmitting and receiving means, in response to input of the evaluation, and transmits the input evaluation to the server device.

  According to this aspect, based on the evaluation with respect to the first playlist transmitted from the terminal device to the server device, the transmission priority for each first playlist transmitted to the terminal device in the server device is updated. Therefore, the transmission / reception process of the first playlist can be improved to be preferable for the user. That is, the server device can continue to provide a playlist that actually matches the user's preference, and can provide a playlist that gives the user high satisfaction.

  Preferably, the server storage unit stores first playlist information including at least one song name received from each of the first terminal devices of the plurality of terminal devices, and the terminal transmission / reception unit includes a third transmission / reception unit, The playlist information is transmitted to the server device as the first playlist information.

  Preferably, the server transmission / reception means transmits the evaluation to the first terminal device that has transmitted the first playlist information transmitted to the second terminal device to the server device.

  Preferably, the playlist information transmission request includes the number of songs to be transmitted, and the playlist information search means includes a song name included in the playlist information transmission request and is not included in the playlist information transmission request. The first playlist information including the name of the number of songs to be transmitted is searched.

  Preferably, the server storage means stores music data having a music name, and a plurality of music data stored in the server storage means in response to the music transmission request including the music name received from the second terminal device. Further includes music search means for searching for music data having a music name, the server transmission / reception means distributes the searched music data to the second terminal device, and the terminal display means receives from the server device. The selection screen for selecting a song name from the first playlist information is displayed, and the terminal transmitting / receiving means sends a song transmission request including the selected song name in response to a selection command for selecting the song name. Send to server device.

  Preferably, the server storage unit stores distribution history information of music data transmitted to the second terminal device, and the server search unit transmits playlist information based on the playlist information transmission request and the distribution history information. Searching the first playlist information including the song name included in the request and including the song name not included in the playlist information transmission request and the distribution history information as many as the number of songs desired to be transmitted. The music data having the music name is distributed to the second terminal device, and the distribution history information is updated.

  According to still another aspect of the present invention, a server device that transmits playlist information to a plurality of terminal devices via a network, the first playlist information including at least one song name, Server storage means for storing a transmission priority associated with each piece of playlist information, and server storage means based on a playlist information transmission request including at least one song name received from the second terminal device Playlist information search means for searching at least one first playlist information satisfying a predetermined condition from among the first playlist information stored in the playlist information search means, The first playlist information including the music name included in the information transmission request is searched, and the searched first playlist information is used as the second terminal device. Further comprising a server transmission means for transmitting a server transmitting and receiving means on the basis of the evaluation of the first play list information received from the second terminal device, it updates the transmission priority.

  According to still another aspect of the present invention, there is provided a program for causing a server device that transmits playlist information to a plurality of terminal devices via a network to transmit the playlist information, including at least one song name. A step of storing first playlist information and a transmission priority associated with each of the first playlist information, and playlist information including at least one song name received from the second terminal device Searching for first playlist information including a song name included in the playlist information transmission request from the first playlist information stored in the server storage means based on the transmission request; Transmitting the first playlist information to the second terminal device and the first playlist information received from the second terminal device. Based on the evaluation that, to perform the steps of updating the transmission priority, to the server device.

  According to still another aspect of the present invention, a program for causing a terminal device that receives playlist information via a network from a server device that stores first playlist information to receive the playlist information, Storing third playlist information including at least one song name; transmitting a playlist information transmission command including at least one song name to the server device; and the first play received from the server device A step of displaying the list information; a step of storing the first playlist information as the third playlist information in response to a storage command for storing the first playlist information; and the stored first playlist information A step to display an input screen for accepting the input of the evaluation for, and input according to the input of the evaluation Transmitting the valence to the server device, the causes to the terminal device.

  According to still another aspect of the present invention, there is provided a playlist information transmission / reception method using a network system including a server device and a plurality of terminal devices that receive playlist information from the server device via a network. The server device includes server storage means for storing first playlist information including at least one music title, and transmission priorities associated with each of the first playlist information, and a second terminal Based on a playlist information transmission request including at least one song name received from the device, at least one first playlist satisfying a predetermined condition from the first playlist information stored in the server storage means Playlist information search means for searching for information, and a server for transmitting the searched first playlist information to the second terminal device A terminal storage unit for storing third playlist information including at least one song name, and a playlist information transmission command including at least one song name to the server device. And a terminal display means for displaying the first playlist information received from the server device. In the playlist information transmission / reception method, the playlist information search means responds to the playlist information transmission request. A step of searching for first playlist information including the included song name, and a step of updating transmission priority based on an evaluation of the first playlist information received from the second terminal device by the server transmitting / receiving means; And the terminal storage means stores the first playlist information in the third playlist in response to a storage command for storing the first playlist information. The terminal display means for displaying an input screen for receiving an input of evaluation for the first playlist information stored in the terminal storage means, and the terminal transmission / reception means for inputting the evaluation information. And a step of transmitting the input evaluation to the server device.

  As described above, according to the present invention, it is possible to provide a playlist that gives the user high satisfaction.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals, and when the names and functions of the parts are the same, detailed description of the parts will not be repeated.

<Overall configuration>
First, the overall configuration of the network system 1 according to the present embodiment will be described. FIG. 1 is a schematic diagram showing an overall configuration of a network system 1 using a network 30. Here, the network 30 is an existing network such as a public network or the Internet. The network system 1 according to the present embodiment is configured such that the terminal devices 10a, 10b,... Used by each user and the server device 20 can communicate (connectable) via the network 30. In this system, the terminal devices 10a, 10b,... Can acquire a playlist (playlist information) with a high degree of user satisfaction from the server device 20.

  The playlist transmission / reception processing described later includes terminal devices 10a, 10b,... Configured by a computer such as a personal computer or a portable terminal player such as a PDA, and a server device 20 configured by a computer such as a workstation. This is realized by the network 30 and software executed on the terminal devices 10a, 10b,. In the following description, each of the terminal devices 10a, 10b,... Is collectively referred to as the terminal device 10 when the configuration and function of each of the terminal devices 10a, 10b,.

<Hardware configuration of terminal device and server device>
FIG. 2 is a perspective view showing a computer that is an example of the terminal device 10 according to the present embodiment. As shown in FIG. 1, a terminal device 10 according to the present embodiment includes a computer main body 101 including an FD (Flexible Disk) driving device 111 and a CD-ROM (Compact Disc-Read Only Memory) driving device 113, and a monitor. 102, a keyboard 103, and a mouse 104.

  One server device 20 is generally different in performance and capacity of a computing device (CPU) and storage device (fixed disk) from that of the terminal device 10, but the other basic configuration is the terminal device shown in FIG. 10 is the same. However, in the network system 1 according to the present embodiment, the server device 20 does not need to be equipped with the monitor 102, the mouse 104, or the like.

  FIG. 3 is a block diagram illustrating a hardware configuration of the terminal device 10 using the CPU 105 according to the present embodiment. As shown in FIG. 3, the computer main body 101 includes a CPU (Central Processing Unit) 105 and a memory 106 which are connected to each other by an internal bus 108 in addition to the FD driving device 111 and the CD-ROM driving device 113 described above. And a fixed disk 107 and a communication interface 109. The FD 112 is attached to the FD driving device 111. A CD-ROM 114 is attached to the CD-ROM drive 113.

  As already described, the network system 1 and the playlist transmission / reception processing according to the present embodiment are performed by computer hardware constituting the terminal devices 10a, 10b,... And the server device 20 and software executed by the CPU 105. Realized. Generally, such software is stored in a recording medium such as the FD 112 or the CD-ROM 114, or distributed via a network or the like. The software is read from the recording medium by the FD driving device 111 or the CD-ROM driving device 113 or received by the communication interface 109 and stored in the fixed disk 107.

  More specifically, the above software is read from the fixed disk 107 to the memory 106 and executed by the CPU 105 in the terminal device 10 or the server device 20. That is, the hardware itself of the terminal device 10 and the server device 20 shown in FIGS. 2 and 3 is general. Therefore, the most essential part of the present invention is software recorded on a recording medium such as the FD 112, the CD-ROM 114, the fixed disk 107, or provided through a network.

  The monitor 102 is composed of a liquid crystal panel and a CRT, and displays information output by the CPU 105. The keyboard 103 receives information from the user by key input. The mouse 104 receives information from the user when clicked or slid. The CPU 105 controls each element of the terminal device 10 and is a device that performs various calculations. The memory 106 stores various types of information. The fixed disk 107 stores a program executed by the CPU 105 and a database.

  The communication interface 109 converts information output from the CPU 105 into an electrical signal, and is also a device that converts information output from the CPU 105 into a signal that can be used by other devices. The communication interface 109 is also a device that receives information input from the outside of the terminal device 10 according to the present embodiment and converts it into information that can be used by the CPU 105. The terminal device 10 can be connected to an output device other than the monitor 102, such as a printer, as necessary.

  As described above, the server device 20 is generally different in performance and capacity of the arithmetic device (CPU) and storage device (fixed disk) from those of the terminal device 10, but the other basic configuration is the terminal device 10. It is the same.

  In the present embodiment, functions (means) for performing various playlist transmission / reception processes in the terminal device 10 and the server device 20 are realized by software executed on a computer such as a personal computer or a workstation. However, instead of realizing the function of each block and the processing of each step by software, each may be realized by a dedicated hardware circuit or the like.

<Functional configuration of terminal device>
Next, each function which the terminal device 10 which concerns on this Embodiment has is demonstrated. FIG. 4 is a functional block diagram showing a functional configuration of the terminal device 10 according to the present embodiment. As shown in FIG. 4, the terminal device 10 according to the present embodiment includes a terminal storage unit 107-1, a terminal transmission / reception unit 109-1, a terminal input unit 103-1, a terminal display unit 102-1, It is configured with.

  Each function will be described below. First, the terminal storage unit 107-1 is realized mainly by the fixed disk 107 and the memory 106. More specifically, the function of the terminal storage unit 107-1 is that a control program read from the fixed disk 107 to the memory 106 is executed on the CPU 105 to access the fixed disk 107 or the memory 106. Realized. That is, the terminal storage unit 107-1 stores, updates, and deletes various information in the fixed disk 107 and the memory 106 by the CPU 105.

  The terminal storage unit 107-1 stores at least one third playlist including at least one song name. In addition, the terminal storage unit 107-1 accepts a storage instruction to the effect that the CPU 105 stores the first playlist S input from a terminal input unit 103-1, which will be described later, thereby the first playlist. S is stored in the fixed disk 107 as a third playlist. Here, the “third playlist” refers to a playlist that is permanently stored (saved) in the non-volatile fixed disk 107 configured by a hard disk or the like. “Storing as a third playlist” means storing (storing) the first playlist once stored in the memory 106 in a non-volatile fixed disk 107 such as a hard disk.

  The terminal transmission / reception unit 109-1 is mainly realized by the communication interface 109 and the CPU 105. For example, the terminal transmission / reception unit 109-1 is realized by executing a program read from the fixed disk 107 to the memory 106 on the CPU 105. The The terminal transmission / reception unit 109-1 is input from the terminal input unit 103-1, which will be described later, via the internal bus 108, and a playlist P (playlist information P) including the number of songs to be transmitted n and at least one song name. Is transmitted to the server device 20.

  Also, the terminal transmission / reception unit 109-1 transmits the third playlist stored in the terminal storage unit 107-1 to the server device 20 as the first playlist. FIG. 5 is an image diagram showing a data structure related to the first playlist transmitted from the terminal device 10 to the server device. As shown in FIG. 5, the first playlist S transmitted from each of the terminal devices 10 to the server device 20 includes a user ID, a playlist ID, and a song ID (song name). .

  Further, the terminal transmission / reception unit 109-1 receives selection of the music name input from the terminal input unit 103-1, which will be described later, and transmits a music transmission request including the selected music name to the server device 20. To do. In addition, the terminal transmitting / receiving unit 109-1 receives an input of the evaluation of the playlist S stored in the terminal storage unit 107-1 as the third playlist, which is input from the terminal input unit 103-1, which will be described later. The inputted evaluation is transmitted to the server device 20.

  The terminal input unit 103-1 is mainly realized by the keyboard 103, the mouse 104, the CPU 105, the internal bus 108, and the like. For example, a program read from the fixed disk 107 to the memory 106 is executed on the CPU 105. It is realized by doing.

  The terminal input unit 103-1 stores the playlist S desired by the user from the first playlists R, S, T received from the server device 20 as the third playlist in the terminal storage unit 107-1. Evaluation of the first playlist S stored as a third playlist in the terminal storage unit 107-1 or a selection instruction for a song name desired by the user selected by the user. Or accept input.

  The terminal display unit 102-1 is mainly realized by the monitor 102, the CPU 105, and the memory 106. For example, a program read from the fixed disk 107 to the memory 106 is executed on the CPU 105. It is realized by.

  FIG. 6 is an image diagram showing a display screen and a selection screen displayed by the terminal display unit 102-1. As illustrated in FIG. 6A, the terminal display unit 102-1 displays the first playlists R, S, and T (for example, three) received from the server device 20.

  Further, the terminal display unit 102-1 receives the first playlist R received from the server device 20 as shown in FIG. 6B in response to an activation request from the user (for example, an activation request for a music download screen). , S, and T, a selection screen for selecting a music title (music viewing data) that the user desires to purchase is also displayed. When displaying the selection screen, the terminal display unit 102-1 has the third playlist stored in the terminal storage unit 107-1 among the song names (music IDs) included in the playlists R, S, and T. A “Purchase” button is displayed next to the location corresponding to the song name (music ID) that is not included in any of the song names, eg, the song name.

  FIG. 7 is an image diagram showing an evaluation input screen displayed by terminal display unit 102-1. As shown in FIGS. 7A and 7B, the terminal display unit 102-1 displays an input screen for accepting an input of evaluation for the first playlist S stored in the terminal storage unit 107-1. To do. More specifically, the terminal display unit 102-1 according to the present embodiment receives the first playlist R, S, T from the server device 20, and transmits the desired first playlist to the third play. When stored as a list, a selection screen as shown in FIG. 7A is displayed for the stored first playlist. When the user selects the “very good” button as shown in FIG. 7A using the mouse 104 or the like, the terminal display unit 102-1 displays a transmission standby screen as shown in FIG. 7B. Is displayed. As shown in FIG. 7B, the terminal display unit 102-1 displays the transmission standby screen by changing the color of the part representing the transmission button or by raising the transmission button. When the user selects a transmission button, an evaluation is input. The CPU 105 receives the evaluation input, and the terminal transmission / reception unit 109-1 transmits the evaluation to the server device 20.

<Functional configuration of server device>
Next, each function of the server device 20 according to the present embodiment will be described. FIG. 8 is a functional block diagram showing a functional configuration of the server device 20 according to the present embodiment. As shown in FIG. 8, the server apparatus 20 according to the present embodiment includes a server storage unit 107-2, a server transmission / reception unit 109-2, a playlist search unit 105-2, and a music search unit 105-3. It is configured with.

  Each function will be described below. First, the server storage unit 107-2 is mainly realized by the fixed disk 107 and the memory 106. More specifically, the program read from the fixed disk 107 to the memory 106 is executed on the CPU 105. This is realized by accessing the fixed disk 107 and the memory 106. The terminal storage unit 107-1 stores, updates, and deletes various types of information in the fixed disk 107 and the memory 106 by a program executed on the CPU 105.

  The server storage unit 107-2 stores a plurality of first playlists including at least one song name received from the plurality of first terminal devices 10 among the plurality of terminal devices 10a, 10b. . FIG. 9 is an image diagram showing the structure of a database in which a plurality of first playlists R, S, and T stored in the server storage unit 107-2 are stored. As shown in FIG. 5, the first playlist transmitted from each of the terminal devices 10 to the server device 20 includes a user ID, a playlist ID, and a song ID (song name). . And the server memory | storage part 107-2 always updates the database in which the 1st playlist was stored with the 1st playlist sent from the terminal device 10. FIG.

  Thus, the server device 20 according to the present embodiment receives a plurality of playlists R, S, T from each of the terminal devices 10 via the server transmission / reception unit 109-2, and the playlists R, S, T T is stored in the server storage unit 107-2. As shown in FIG. 9, in the server storage unit 107-2, for each of the playlists R, S, and T, the playlist ID, the number of hires, the number of hires, and an evaluation 1 (for example, “It was very good” The number of times (evaluated when the user selected) was input (sent), the number of times evaluation 2 (e.g., the evaluation when “good” was selected) was input (sent), Number of evaluations 3 (e.g., evaluation when “It was mediocre” was selected) was input (sent) and no evaluation (evaluation when evaluation by the user was not performed) were input ( The number of times of transmission), the user ID of the creator of each playlist, and the song name (music ID) included in each playlist are stored as a search database.

  That is, the server storage unit 107-2 according to the present embodiment transmits each first playlist for transmission to the second terminal device 10a among the plurality of terminal devices 10a, 10b. The priority (for example, the number of times of the evaluation 1) is stored. Then, the terminal storage unit 107-2 determines the transmission priority (for example, the number of evaluations 1, 2, and 3) based on the evaluation for the first playlist S received from the second terminal device 10a. Update.

  The server storage unit 107-2 also stores music data (viewing data) having each music name (music ID).

  FIG. 10 is an image diagram showing a data structure of distribution history information stored in the server storage unit 107-2 regarding the music data distributed from the server device 20 to the second terminal device 10a. As shown in FIG. 10, the server storage unit 107-2 stores distribution history information of the music data transmitted from the server device 20 to the second terminal device 10a as a database. The distribution history information includes a distribution date and time for each distribution of music data and a distributed music name (music ID).

  The server transmission / reception unit 109-2 is realized mainly by the communication interface 109 and the CPU 105. For example, the server transmission / reception unit 109-2 is realized by executing a program read from the fixed disk 107 to the memory 106 on the CPU 105. The The server transmission / reception unit 109-2 transmits the first playlists R, S, T searched by the playlist search unit 105-2, which will be described later, to the second terminal device 10a. When the evaluation of the first playlist S is transmitted from the second terminal device 10a, the server transmission / reception unit 109-2 transmits the first playlist S transmitted to the second terminal device 10a. Is transmitted to the first terminal apparatus 10b that has been transmitted to the server apparatus 20 in advance. In response to the music transmission request received from the second terminal device 10, the server transmission / reception unit 109-2 transmits the searched music data to the second terminal device 10a.

  The playlist search unit 105-2 is mainly realized by the CPU 105, the memory 106, and the fixed disk 107. For example, a program read from the fixed disk 107 to the memory 106 is executed on the CPU 105. Is realized. The playlist search unit 105-2 includes the playlist transmission request received from the second terminal device 10a including the number of songs to be transmitted n and the playlist P including at least one song name, and the server storage unit. Based on the distribution history stored in 107-2, a user who uses the second terminal device 10a from among the plurality of first playlists stored in the server storage unit 107-2. The first playlist R, S, T that matches the user's preference is searched.

  More specifically, the playlist search unit 105-2 selects a song name included in the playlist transmission request from the plurality of first playlists stored in the server storage unit 107-2. The first playlists R, S, and T that include the number of songs to be transmitted are included in the playlist transmission request and the number of songs that are not included in the distribution history.

  The music search unit 105-3 is mainly realized by the CPU 105, the memory 106, and the fixed disk 107. For example, a program read from the fixed disk 107 to the memory 106 is executed on the CPU 105. It is realized by. In response to the music transmission request including the music name received from the second terminal device 10a, the music search unit 105-3, from among the plurality of music data stored in the server storage unit 107-2, The music data having the music name is searched.

  With the above configuration, in the network system 1 using the terminal devices 10a, 10b..., The server device 20, and the network 30 according to the present embodiment, the following playlists can be transmitted and received. FIG. 11 is an image diagram showing playlists P, R, S, and T transmitted / received between the terminal devices 10a, 10b...

  As an example of the playlist transmission / reception processing according to the present embodiment, a playlist transmission / reception operation shown in FIGS. 11A and 11B will be described. As shown in FIG. 11 (a), a playlist P () containing music titles (1), (2), (3), (4), (5) from a certain terminal device (second terminal device 10a). When a playlist transmission request is transmitted, the server device 20 searches for a playlist including any or all of the music names (1), (2), (3), (4), (5). Is done. Then, as shown in FIG. 11 (b), any or all of the music names (1), (2), (3), (4), (5) are transferred from the server device 20 to the terminal device 10a. A playlist R including “” is transmitted. For example, a playlist R including song names (3), (5), [1], (1), [2], and [3] is sent from the server device 20 to the terminal device 10a. Here, song names [1], [2], and [3] indicate song names that are included in the playlist R but not included in the playlist P.

  Next, as another example of the playlist transmission / reception processing according to the present embodiment, the playlist transmission / reception operation shown in FIGS. 11C and 11D will be described. As shown in FIG. 11 (c), the desired number of songs to be transmitted from a certain terminal device (second terminal device 10a) n (n = 2) and song names (1) (2) (3) (4) (5 And a playlist transmission request including the playlist P including “”. In the server device 20, any or all of the music titles (1), (2), (3), (4), and (5) are included, and a music title that is not included in the playlist P is transmitted. A playlist including only the number n (n = 2) is searched. Then, as shown in FIG. 11 (d), a playlist including any or all of the music titles (1), (2), (3), (4), and (5) from the server device 20 to the terminal device 10a. R is sent. For example, when n = 2, the playlist R including the music titles (3), (5), [1], (1), and [2] is sent from the server device 20 to the terminal device 10a.

<Playlist transmission / reception processing>
Hereinafter, playlist transmission / reception processing using the network system 1 according to the present embodiment will be described. FIG. 12 is a flowchart (sequence diagram) illustrating the flow of playlist transmission / reception processing in the terminal devices 10a and 10b and the server device 20. The horizontal arrows between the terminal devices 10a and 10b and the server device 20 indicate communication between them.

  As shown in FIG. 12, the server device 20 receives the playlist S from the terminal device 10b in advance and stores the playlist S in the storage device (step 50, hereinafter, step is abbreviated as S). More specifically, a plurality of playlists are stored in the server storage unit 107-2 of the server device 20 in advance, and the plurality of playlists received from the plurality of terminal devices 10a, 10b,. A playlist is also stored.

  Then, in the terminal device 10a, the user using the terminal device 10a creates a playlist P for transmission in order to request the server device 20 to transmit the playlist (S100). The playlist P may be one selected from the third playlist stored in advance on the fixed disk 107 or the like of the terminal device 10a by the user, or when the playlist request command is transmitted by the user, The playlist may be newly generated by selecting or inputting a song name.

  The CPU 105 of the terminal device 10a accepts the generation of the playlist P and the number of songs to be transmitted n from the user via the terminal input unit 103-1, and generates a message for the playlist transmission request. The terminal transmitting / receiving unit 109-1 receives a transmission command input from the terminal input unit 103-1, and sends a playlist transmission request message including the playlist P and the number of songs to be transmitted n via the communication interface 109 to the server. It transmits to the apparatus 20 (S200).

  Next, in the server device 20, the server transmission / reception unit 109-2 receives the playlist transmission request message. Then, the playlist search unit 105-2 performs playlist search processing based on the playlist transmission request including the desired number of songs to be transmitted n and the playlist P (S300).

<Playlist search process>
Here, the playlist search process (S300) will be described in detail. FIG. 13 is a flowchart showing playlist search processing in the server device 20.

  As shown in FIG. 13, in the playlist search process in the server device 20, the CPU 105 of the server device 20 that implements the playlist search unit 105-2 is stored in the fixed disk 107 that implements the server storage unit 107-2. The first play list is sequentially determined by determining whether or not a condition (hereinafter referred to as a search condition) stored in the play list transmission request message is met.

  First, the CPU 105 selects the first playlist (for example, selects the playlist having the smallest playlist ID and the playlist ID “000001”) (S302), and the memory 106. An area in which the above possessed music and unaccompanied music are stored is initialized ("0" is stored in the area) (S304). Next, the CPU 105 selects the first music name (music ID) of the selected playlist (S306), and determines whether or not the music name is included in the playlist P (S308).

  If the song name is included in the song name included in the playlist P (YES in S308), the number of songs possessed on the memory 106 is incremented (S310). On the other hand, if the song name is not included in the song ID included in the playlist P (NO in S308), the number of possessed songs on the memory 106 is incremented (S312).

  Next, the CPU 105 determines whether or not the selected song name is the last song name in the playlist (S314). When the selected song name is the last song name in the playlist (in the case of YES in S314), the CPU 105 determines whether or not the possessed song regarding the playlist matches the number n of desired songs to be transmitted. (S316). On the other hand, if the selected song name is not the last song name in the playlist (NO in S314), the CPU 105 selects the next song name (S307), and the next song name is from S308 to S314. Repeat the calculation.

  If the unaccompanied music related to the playlist matches the number n of desired songs to be transmitted (matches the search condition) (YES in S316), the CPU 105 sets flag = YES corresponding to the playlist on the memory 106. ("1" is substituted into the flag area reserved in the memory 106 in advance) (S318). On the other hand, when the unaccompanied music related to the playlist does not match the number n of desired transmission songs (does not match the search condition) (NO in S316), the CPU 105 sets flag = NO corresponding to the playlist on the memory 106. ("0" is substituted into the flag area) (S320).

  Next, the CPU 105 determines whether or not the playlist is the last playlist (playlist having the largest playlist ID) among the playlists stored in the fixed disk 107 (S322). When the playlist is the last playlist (YES in S322), the CPU 105 extracts the playlists R, S, and T with flag = YES and outputs them to the server transmission / reception unit 109-2 (S324). On the other hand, if the playlist is not the last playlist (NO in S322), the CPU 105 selects the next playlist (S303), and repeats the operations from S304 to S322 for the next playlist.

  In the network system according to the present embodiment, when the CPU 105 extracts and outputs the playlists R, S, and T with flag = YES, the priority stored for each playlist (for example, with an evaluation of 1). The playlist is output in order according to the number of times. For example, when there are a large number of playlists that match the above conditions, the playlists are extracted in descending order of priority so that they fall within the predetermined upper limit value of the number of playlists that can be transmitted to the terminal device 10. Is output.

In this embodiment, the priority is set to the number of evaluations 1, but for example, the number of evaluations 3 is set to the number of times the user has selected evaluation of contents such as “ordinary” or “not good”. When the list search means extracts or outputs a playlist, the priority may be calculated from the following formula.
Priority = (number of evaluations 1) − (number of evaluations 3)
Moreover, the structure which reflects the number of the said possessed music memorize | stored in the memory 106 in the priority of the output of a play list or transmission may be sufficient. For example, a playlist having a large number of possessed songs is preferentially transmitted to the terminal device 10, and a playlist having a large number of evaluations 1 is preferentially transmitted to the terminal device 10 when the possessed songs are the same. It may be a configuration. Conversely, a playlist with a high number of evaluations 1 is preferentially transmitted to the terminal device 10, and when the number of evaluations 1 is the same, a playlist with a large number of possessed songs is preferentially transmitted to the terminal device 10. The structure which transmits to may be sufficient.

  In other words, the playlist transmission request message may include the desired transmission playlist number m, and the user may input the desired transmission playlist number m to the terminal device 10a. In this case, the playlist search unit 105-2 selects playlists in descending order of priority based on the number m of desired playlists to be transmitted, and outputs them to the server transmission / reception unit 109-2.

<Playlist transmission / reception processing>
As shown in FIG. 12, when the playlist search process (S300) is completed, playlists R, S, and T that match the search conditions are transmitted to the terminal device 10a via the server transmission / reception unit 109-2. In the terminal device 10a, the terminal transmission / reception unit 109-1 receives the playlists R, S, and T, and the terminal display unit 102-1 sequentially displays the playlists R, S, and T (S400). In the present embodiment, the terminal display unit 102-1 displays a playlist display screen as shown in FIG. For example, when the playlist R is displayed, the next playlist S is displayed when the user clicks the “next” button with a mouse or the like. However, the terminal display unit 102-1 may be configured to arrange all the playlists received from the server device 20 at the same time.

  As described above, when the terminal display unit 102-1 displays the playlists R, S, and T, when the user clicks the “save” button with the mouse 104 or the like (the terminal storage unit 107-1 has A storage command is received via the terminal input unit 103-1, and the playlist S (first playlist) desired by the user is stored in the terminal storage unit 107-1 as the third playlist (S500). .

  After that, when all the songs included in the third playlist are viewed on the terminal device 10a (S550), the terminal display unit 102-1 inputs the evaluation of the playlist S as shown in FIG. 7A. An evaluation input screen for performing the operation is displayed (S600). When an evaluation of the playlist S is selected (input) by the user and the transmission button is clicked as shown in FIG. 7B, information related to the evaluation of the playlist S is transmitted to the server by the terminal transmission / reception unit 109-1. It is transmitted to the device 20 (S700).

  In the server device 20, the information related to the evaluation is received, and the server storage unit 107-2 updates the number of evaluations of the playlist S based on the evaluation (S800). For example, when the user selects and transmits an evaluation (evaluation 1) of “very good”, the number of evaluations 1 of the playlist S is incremented. Thereby, the priority transmitted to the terminal device of the playlist S is updated (S900).

  Finally, in the server device 20, the server transmission / reception unit 109-2 receives the evaluation received from the terminal device 10 b from the terminal device 10 b to the terminal device (first terminal device 10 a) that has transmitted the playlist S to the server device 20 in advance. The cumulative number of evaluations 1, 2, 3, etc. is transmitted.

<Music download>
Below, the case where the music data (viewing data) which a user desires is downloaded using the network system 1 which concerns on this Embodiment is demonstrated. FIG. 14 is a flowchart (sequence diagram) illustrating the flow of playlist transmission / reception processing in the terminal devices 10a and 10b and the server device 20 when music is downloaded.

  Also in the playlist transmission / reception process when the music is downloaded, the processes of S50 to S400 are the same as the case where the music is not downloaded (see FIG. 12). When downloading music data (viewing data), the playlist display screen as shown in FIG. 6B is displayed by the terminal display unit 102-1 when the playlists R, S, T are received from the server device 20. Is displayed (S1000). That is, when the playlist R is displayed, a “purchase button” is also displayed. Then, when the user clicks the “next” button using the mouse 104, the next playlist S displaying the “purchase button” is displayed. However, the terminal display unit 102-1 may be configured to display all the playlists received from the server device 20 side by side at the same time.

  Thus, in the state where the terminal display unit 102-1 displays the playlists R, S, and T, the “purchase button” of the music data (viewing data) of the music X, Y, and Z desired by the user is displayed. When clicked, a message requesting transmission of music data of the music X, Y, and Z (music transmission request) is transmitted to the server device 20 (S1100).

  Next, in the server device 20, the music search unit 105-3 searches the server storage unit 107-2 for music data having the music names X, Y, and Z (S1200). Then, the server transmission / reception unit 109-2 transmits (distributes) the music data having the searched music names X, Y, and Z to the terminal device 10a.

  Thereafter, when all the songs having the song names X, Y, and Z distributed from the server device 20 are received by the terminal device 10a, the terminal display unit 102-1 displays the playlist as shown in FIG. R, S, and T are displayed (S400), and the storage process of the playlist S desired by the user is performed (S500). Also in the playlist transmission / reception process when the music is downloaded, the subsequent processes of S400 to S900 are the same as those when the music is not downloaded (see FIG. 12). That is, the configuration for performing music download as described above can be combined with the configuration for not downloading music without changing the essence of the configuration.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is the schematic which shows the whole structure of the network system using a network. It is a perspective view which shows the computer which is an example of the terminal device which concerns on this Embodiment. It is a block diagram which shows the hardware constitutions of the terminal device using CPU which concerns on this Embodiment. It is a functional block diagram which shows the function structure of the terminal device which concerns on this Embodiment. It is an image figure which shows the data structure regarding the 1st play list transmitted from a terminal device to a server apparatus. It is an image figure which shows the display screen and selection screen which are displayed by a terminal display part. It is an image figure which shows the evaluation input screen displayed by a terminal display part. It is a functional block diagram which shows the function structure of the server apparatus which concerns on this Embodiment. It is an image figure which shows the structure of the database in which the some 1st play list memorize | stored in the server memory | storage part was stored. It is an image figure which shows the data structure of the distribution history information memorize | stored in the server memory | storage part regarding the music data delivered from the server apparatus to the 2nd terminal device. It is the image figure which showed the play list transmitted / received between a terminal device and a server apparatus. It is a flowchart (sequence diagram) which shows the flow of the play list transmission / reception process in a terminal device and a server apparatus. It is a flowchart which shows the search process of the playlist in a server apparatus. It is a flowchart (sequence diagram) which shows the flow of the play list transmission / reception process in the terminal device and server apparatus in the case of performing music download.

Explanation of symbols

  1 network system 10, 10a, 10b terminal device, 20 server device, 30 network, 102-1 terminal display unit, 103-1 terminal input unit, 105-2 playlist search unit, 105-3 music search unit, 106 memory , 107-1 terminal storage unit, 107-2 server storage unit, 109-1 terminal transmission / reception unit, 109-2 server transmission / reception unit, P, R, S, T playlist, X, Y, Z song name (music ID) .

Claims (11)

A network system comprising a server device and a plurality of terminal devices that receive playlist information from the server device via a network,
The server device
First playlist information including at least one song name received from each of the first terminal devices of the plurality of terminal devices, and transmission priority associated with each of the first playlist information And server storage means for storing music data having the music name, and distribution history information of the music data transmitted to the second terminal device,
Based on the playlist information transmission request including the number of songs to be transmitted and the name of at least one song received from the second terminal device, and the distribution history information, the first information stored in the server storage means. Playlist information search means for searching for at least one first playlist information satisfying a predetermined condition from one playlist information,
The playlist information search means includes a song name included in the playlist information transmission request, and includes the number of songs desired to be transmitted that are not included in the playlist information transmission request and the distribution history information. Search for the first playlist information,
Server transmission / reception means for transmitting the searched first playlist information to the second terminal device;
The server transmission / reception means updates the transmission priority based on the evaluation of the first playlist information received from the second terminal device, and transmits the first transmission to the second terminal device. Transmitting the evaluation to the first terminal device that transmitted the playlist information to the server device,
The server transmission / reception means distributes the music data having the music name to the second terminal device in response to the music transmission request including the music name received from the second terminal device, and the distribution history. Update information,
Each of the terminal devices
Terminal storage means for storing third playlist information including at least one song name;
Terminal transmission / reception means for transmitting a playlist information transmission command including the number of songs to be transmitted and at least one song name to the server device,
The terminal transmission / reception means transmits the third playlist information to the server device as the first playlist information,
Terminal display means for displaying the first playlist information received from the server device,
The terminal storage means stores the first playlist information as third playlist information in response to a storage command for storing the first playlist information,
The terminal display means displays a selection screen for selecting a song name from the first playlist information received from the server device;
The terminal transmission / reception means transmits a song transmission request including the selected song name to the server device in response to a selection command for selecting the song name,
The terminal display means displays an input screen for accepting an input of evaluation for the first playlist information stored in the terminal storage means,
The said terminal transmission / reception means is a network system which transmits the said evaluation input to the said server apparatus according to the input of the said evaluation. A network system comprising a server device and a plurality of terminal devices that receive playlist information from the server device via a network,
The server device
Server storage means for storing first playlist information including at least one song name, and transmission priorities associated with each of the first playlist information;
Based on a playlist information transmission request including at least one song name received from the second terminal device, at least a predetermined condition is satisfied from the first playlist information stored in the server storage unit Playlist information search means for searching for one first playlist information,
The playlist information search means searches for first playlist information including a song name included in the playlist information transmission request,
Server transmission / reception means for transmitting the searched first playlist information to the second terminal device;
The server transmission / reception means updates the transmission priority based on the evaluation for the first playlist information received from the second terminal device,
Each of the terminal devices
Terminal storage means for storing third playlist information including at least one song name;
Terminal transmission / reception means for transmitting a playlist information transmission command including at least one music title to the server device;
Terminal display means for displaying the first playlist information received from the server device,
The terminal storage means stores the first playlist information as third playlist information in response to a storage command for storing the first playlist information,
The terminal display means displays an input screen for accepting an input of evaluation for the first playlist information stored in the terminal storage means,
The said terminal transmission / reception means is a network system which transmits the said evaluation input to the said server apparatus according to the input of the said evaluation. The server storage means stores first playlist information including the at least one song name received from each of the first terminal devices of the plurality of terminal devices,
The network system according to claim 2, wherein the terminal transmission / reception unit transmits the third playlist information to the server device as the first playlist information.   The server transmission / reception means transmits the evaluation to the first terminal device that has transmitted the first playlist information transmitted to the second terminal device to the server device. The network system described. The playlist information transmission request includes the number of songs to be transmitted,
The playlist information search means includes a song name included in the playlist information transmission request and includes song names not included in the playlist information transmission request for the number of songs desired to be transmitted. The network system according to claim 2, wherein the list information is searched. The server storage means stores music data having the music name,
In response to a music transmission request including a music name received from the second terminal device, a music search for searching for music data having the music name from among a plurality of music data stored in the server storage means Further comprising means,
The server transmission / reception means distributes the searched music data to the second terminal device,
The terminal display means displays a selection screen for selecting a song name from the first playlist information received from the server device;
The said terminal transmission / reception means transmits the music transmission request | requirement containing the selected said music name to the said server apparatus according to the selection command which selects the said music name, The any one of Claim 2 to 5 Network system. The server storage means stores distribution history information of the music data transmitted to the second terminal device;
The server search means includes a song name included in the playlist information transmission request based on the playlist information transmission request and the distribution history information, and includes the playlist information transmission request and the distribution history information. Search for the first playlist information including the number of songs desired to be transmitted that is not included,
The network system according to claim 6, wherein the server transmission / reception unit distributes music data having the music name to the second terminal device and updates the distribution history information. A server device that transmits playlist information to a plurality of terminal devices via a network,
Server storage means for storing first playlist information including at least one music title, and transmission priorities associated with each of the first playlist information;
Based on a playlist information transmission request including at least one song name received from the second terminal device, at least a predetermined condition is satisfied from the first playlist information stored in the server storage unit Playlist information search means for searching for one first playlist information,
The playlist information search means searches for first playlist information including a song name included in the playlist information transmission request,
Server transmission / reception means for transmitting the searched first playlist information to the second terminal device;
The server transmitting / receiving means updates the transmission priority based on an evaluation on the first playlist information received from the second terminal device. A program for transmitting playlist information to a server device that transmits playlist information to a plurality of terminal devices via a network,
Storing first playlist information including at least one song name, and transmission priority associated with each of the first playlist information;
Based on the playlist information transmission request including at least one music title received from the second terminal device, the playlist information transmission from the first playlist information stored in the server storage means Searching for first playlist information including a song name included in the request;
Transmitting the searched first playlist information to the second terminal device;
A program for causing a server device to perform the step of updating the transmission priority based on the evaluation of the first playlist information received from the second terminal device. A program for causing a terminal device that receives playlist information via a network from a server device that stores first playlist information to receive the playlist information,
Storing third playlist information including at least one song name;
Transmitting a playlist information transmission command including at least one music title to the server device;
Displaying the first playlist information received from the server device;
Storing the first playlist information as third playlist information in response to a storage command for storing the first playlist information;
Displaying an input screen for accepting an input of evaluation for the stored first playlist information;
A program for causing a terminal device to perform the step of transmitting the input evaluation to the server device in response to the input of the evaluation. A playlist information transmission / reception method using a network system comprising a server device and a plurality of terminal devices that receive playlist information from the server device via a network,
The server device
Server storage means for storing first playlist information including at least one music title, and transmission priorities associated with each of the first playlist information;
Based on a playlist information transmission request including at least one song name received from the second terminal device, at least a predetermined condition is satisfied from the first playlist information stored in the server storage unit Playlist information retrieval means for retrieving one first playlist information;
Server transmission / reception means for transmitting the searched first playlist information to the second terminal device,
Each of the terminal devices
Terminal storage means for storing third playlist information including at least one song name;
Terminal transmission / reception means for transmitting a playlist information transmission command including at least one music title to the server device;
Terminal display means for displaying the first playlist information received from the server device,
The playlist information transmission / reception method includes:
The playlist information search means searching for first playlist information including a song name included in the playlist information transmission request;
The server transmitting / receiving means updating the transmission priority based on an evaluation of the first playlist information received from the second terminal device;
The terminal storage means storing the first playlist information as third playlist information in response to a storage command for storing the first playlist information;
The terminal display means displaying an input screen for accepting an input of evaluation for the first playlist information stored in the terminal storage means;
The terminal transmission / reception means includes a step of transmitting the input evaluation to the server device in response to the input of the evaluation.

Images