JP2005321639A - Method and system for distributing music content, and program for playing back music content - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for distributing music content which can reduce occurence of errors at the time of downloading while download-sales of music content by a simple and secured charging method, and can also deal with needs for trial listening before purchase. <P>SOLUTION: A download manager and a trial listening data can be downloaded by letting a portable telephone read a codes for a download manager and a code for trial listening given to a music card and transmitting them to a music distribution server. Music data can be downloaded by letting the portable telephone read a code for download given to a hidden part inside the music card and transmitting it to the music distribution server. The music distribution server permits transmission of multiple times if the download is demanded from the same portable telephone, but does not perform transmission when judging availability of memory of the portable telephone as running short. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to music content using a music card with an authentication code for identifying music content, a mobile phone capable of reading the authentication code, and a distribution server for distributing music content to the mobile phone via a network. The present invention relates to a distribution method, a music content distribution system, and a music content reproduction program used in the mobile phone.

  When a consumer purchases music content, it is common to purchase a storage medium such as a CD that stores reproducible music content. On the other hand, along with the spread of the Internet and mobile phones, in addition to dedicated terminals installed in stores, it is also possible to acquire music content by downloading music content to a PC (personal computer) or mobile phone via a network. To be done.

  Music content download sales have the advantage of greatly reducing the production cost and distribution cost of CDs, etc. when viewed from the content provider, but are easy when viewed from the purchaser who purchases the content. There is merit to acquire contents. However, since there is a problem of billing without delivery of goods at the store, a simple and safe billing method is an issue for the spread of download sales. In response to such a problem, for example, an invention relating to a music distribution system is disclosed that uses a card with a concealed download ID, and permits the download using the ID acquired by purchasing the card as an authentication key ( For example, see Patent Document 1.)

  In addition to the above problems, the challenge when selling music content is to make it possible for the purchaser to listen to what kind of music to buy after selecting the music content to purchase. . In the case of download sales via a network, it is possible to prepare a sound source for trial listening on the distribution server side and perform streaming delivery, and it is common to use a dedicated listening device for sales at stores. .

  Of these, when selling at stores, generally, only new songs and hit songs can be auditioned with a listening device. Even if all songs can be auditioned, media such as CDs and listening devices are not available. Since it is physically different, in order to audition the music even if a CD is selected, the music selection operation must be performed separately by a tester. As a method for listening to a selected CD or the like as it is, a device relating to a storage case and a barcode reader capable of selecting a song by providing a barcode on a storage case such as a CD and reading the barcode with a tester is disclosed. (For example, refer to Patent Document 2).

JP 2003-15660 A Utility Model Registration No. 25899939

  According to the invention described in Patent Document 1, a purchaser can realize simple and reliable billing by paying a price when purchasing a card whose ID serving as a download key is concealed. However, when selling music content by this method, the following problems may occur.

  First, when the number of music pieces handled increases, the number of digits also increases in the ID corresponding thereto, which may cause a problem that the input operation at the time of downloading by the purchaser becomes troublesome. In particular, when a mobile phone is used as a terminal, it may be troublesome for those who are not accustomed to the operation.

  Next, particularly when downloading is performed using a mobile phone, there may be a case where a music error cannot be acquired due to a communication error or the like during the download. In order to solve such a problem, the invention described in Patent Document 1 records an ID for identifying a mobile phone when a download request is received, thereby enabling multiple downloads from the same mobile phone. (Patent Document 1, paragraphs 0020 to 0023), but in addition to such a method, it is preferable to effectively combine with other methods that can reduce download errors in the first place. .

  Furthermore, when the card with ID described in Patent Document 1 is used, the purchaser cannot audition the music when purchasing the card. In order to enable the trial listening, for example, a method of attaching the barcode described in the utility model document 1 to the storage case is conceivable. In order to realize this method, a dedicated bar as described in the utility model document 1 is considered. A listening device equipped with a code reader is required and must be installed at a store that sells cards with IDs.

  The present invention has been made in order to cope with such problems, and it is possible to reduce the occurrence of errors during download while downloading and selling music contents by a simple and reliable accounting method, and to listen to music before purchase. A music card with an authentication code for identifying music content, a mobile phone capable of reading the authentication code, and a distribution server for distributing music content to the mobile phone via a network. It is an object of the present invention to provide a music content distribution method, a music content distribution system, and a music content reproduction program used in the mobile phone.

  A first invention for solving the above-described problems is a music card with an authentication code for specifying music content, a mobile phone capable of reading the authentication code, and distribution for distributing music content to the mobile phone via a network. A method for distributing music content using a server, wherein the mobile phone reads an authentication code attached to the music card, and the mobile phone stores new data in a storage area of the mobile phone. Identifying the available free space capacity, transmitting the authentication code, the free space capacity and the first terminal ID identifying the mobile phone to the distribution server, and the distribution server Receives the authentication code, the free space capacity, and the first terminal ID. And a step in which the distribution server specifies a product ID assigned to each music card from the authentication code, and a master provided for each product ID of a content database in which the distribution server stores music content. Referring to the information, determining whether the master information corresponding to the product ID has a download history of the music content specified by the authentication code; and if the distribution server has a download history in the master information If it is determined, the step of comparing the first terminal ID received by the distribution server with the second terminal ID for identifying the mobile phone that has downloaded the music content related to the product ID recorded in the master information. And the distribution server determines that the master information has a download history. In this case, the method includes the step of comparing the free space capacity received by the distribution server with the data capacity of music content corresponding to the product ID recorded in the master information. If the terminal ID and the second terminal ID do not match, the distribution server sends an error notification to the mobile phone without executing the music content download process, and the free space capacity is the data When it is determined that the capacity is insufficient, the distribution server transmits an error notification to the mobile phone without executing the music content download process. .

  In the first invention, if the music card is a medium with an authentication code for downloading music content, the material and shape are not particularly limited, so that the purchaser can specify the music content. A title or artist name is displayed. The authentication code may be any code that can be read by the mobile phone, but it is preferable to use a two-dimensional code that can save a large amount of data in a small space. If it can be read in a state where it is displayed in a store or the like, it may be downloaded without being purchased. Therefore, the authentication code is preferably attached to the inner surface of a medium that cannot be read unless purchased. As the mobile phone, a camera-equipped mobile phone having a function of reading a two-dimensional code or the like may be used. As the terminal ID, an ID assigned to each mobile phone is used so that the mobile phones can be identified one by one.

  In the first invention, the purchaser of the music content purchases a music card to which an authentication code is attached, and reads the authentication code with a camera-equipped mobile phone, so that there is no special input operation such as an ID number. Music content can be downloaded with a simple operation. At the time of a download request, the remaining amount of memory is transmitted from the mobile phone and compared with the file size of the music content, so if the remaining memory is insufficient, the distribution is stopped and an error due to insufficient memory is prevented in advance. Errors that occur during download can be reduced.

  A second invention for solving the above-mentioned problems is that a music card to which an authentication code for specifying music content and a test code for specifying a test sound source of the music content are attached, and the authentication code and the test code can be read. A music content distribution method using a mobile phone and a distribution server that distributes music content to the mobile phone through a network, wherein the mobile phone reads an authentication code or a trial listening code attached to the music card. The mobile phone transmits the authentication code or the audition code and a first terminal ID for identifying the mobile phone to the distribution server; and the distribution server includes the authentication code or the audition code. Receiving the first terminal ID, and receiving the distribution server. Identifying whether the received code is an authentication code or an audition code, and if the received code is identified as an authentication code, the distribution server determines for each music card from the authentication code A step of identifying the attached product ID, and the distribution server refers to master information provided for each of the product IDs in a content database storing music content, and authenticates the master information corresponding to the product ID. Determining whether there is a download history of the music content specified by the code; and if the distribution server determines that there is a download history in the master information, the first terminal received by the distribution server The mobile phone that downloaded the music content related to the product ID recorded in the ID and the master information And comparing the second terminal ID that identifies the speaker, and if the first terminal ID and the second terminal ID do not match, the distribution server An error notification is transmitted to the mobile phone without executing a download process, and when the received code is identified as a sample code, the distribution server sends a sample sound source corresponding to the sample code Identifying and transmitting data to the mobile phone, wherein the trial sound source data can be played back only on a mobile phone in which a dedicated playback program is stored, and playback of the trial sound source data The cellular phone that has received the instruction activates the reproduction program to reproduce the sample sound source data, and after the reproduction, the sample sound source data cannot be erased or reproduced. The music content distribution method is characterized by changing to a formula.

  Also in the second invention, the music card is not particularly limited in terms of material and shape, as in the first invention. Any audition code can be used as long as it can be read by a mobile phone. Unlike an authentication code, the audition code can be read at a store so that it can be auditioned before purchase. It is preferable to be attached. Similarly to the first invention, the mobile phone may be a camera-equipped mobile phone having a function of reading a two-dimensional code or the like. For the trial sound source data, usually, a part of music data cut out for several tens of seconds from the beginning of the music content is used. As in the first invention, an ID assigned to each mobile phone is used as the terminal ID.

  In the second invention, the purchaser of the music content purchases a music card to which an authentication code is attached, and reads the authentication code with a camera-equipped mobile phone, so that there is no special input operation such as an ID number. The music content can be downloaded with a simple operation, as in the first invention. Furthermore, since the music card is also provided with a test listening code, it is possible to easily listen to the music content to be purchased by reading this code and requesting it from the distribution server. When the sound source for trial listening is reproduced on the mobile phone, it is erased as it is and cannot be reproduced thereafter.

  The first and second inventions include a step of transmitting sound source data for reproducing the music content to the mobile phone when the distribution server executes the music content download process. And when the mobile phone receives the sound source data, the mobile phone has a step of adding the terminal ID of the mobile phone and storing the sound source data in a storage area of the mobile phone. Can be played back only on the mobile phone in which the playback program is stored, and the mobile phone that has received the playback instruction of the sound source data activates the playback program and uses the mobile phone terminal ID and the sound source data. If the terminal ID of the mobile phone matches the terminal ID attached to the sound source data, the sound source data is compared. It may be characterized by performing the playback.

  According to the first invention and the second invention, if the same mobile phone is used, the same music content can be downloaded multiple times, so that it is possible to cope with the occurrence of a communication error or the like. However, it is not possible to prevent the downloaded music from being illegally copied, but according to this method, the terminal ID is managed on the side of the mobile phone that has downloaded the music content, so that it is played only on the downloaded mobile phone. And illegal copying can be prevented.

  Further, according to the first and second inventions, the mobile phone reads a download code for downloading the reproduction program attached to the music card, and the mobile phone uses the download code. Transmitting the code to the distribution server, the distribution server receiving the download code, and the distribution server identifying and transmitting a reproduction program corresponding to the download code to the mobile phone And a step of performing.

  In the first invention and the second invention, there may be a case where the mobile phone requires a dedicated reproduction program or a program for reading the free space in the storage area of the mobile phone. According to this method, downloading of such a dedicated program can also be executed by a simple operation of reading a code with a mobile phone.

  Furthermore, the first invention and the second invention provide music content distribution for executing a music content distribution method corresponding to each aspect of the music content distribution method according to the first invention or the second invention. It can also be configured as a system.

  That is, the music content distribution system corresponding to the music content distribution method according to the first invention is a music content distribution system for distributing music content to a mobile phone, and specifies the music content attached to the music card. Receiving means for receiving the authentication code and the first terminal ID for specifying the mobile phone from the mobile phone that has read the authentication code to be specified, and specifying the product ID assigned to each music card from the authentication code Means and the master information provided for each of the product IDs in the content database storing the music content, whether there is a download history of the music content specified by the authentication code in the master information corresponding to the product ID Determining means for determining whether the master information is downloaded; If it is determined that there is a history, the first terminal ID received by the distribution server and the second terminal ID that identifies the mobile phone that has downloaded the music content related to the product ID recorded in the master information And transmitting means for transmitting an error notification to the mobile phone without executing the music content download process when the first terminal ID and the second terminal ID do not match. Receiving means for receiving free space capacity capable of storing new data in the storage area of the mobile phone from the mobile phone; and data capacity of music content corresponding to the product ID recorded in the master information And the comparing means for comparing the free space capacity and the free space capacity is determined to be less than the data capacity, Without performing the download processing of the Ceiling, a music contents distributing system, characterized by comprising a transmitting means for transmitting an error notification to the mobile phone.

  A music content distribution system corresponding to a music content distribution method according to a second invention is a music content distribution system for distributing music content to a mobile phone, and authentication for specifying the music content attached to a music card Receiving means for receiving the authentication code or the listening code and the first terminal ID for specifying the mobile phone from the mobile phone that has read the code or the listening code for specifying the listening sound source of the music content; and the receiving means Identifying means for identifying whether the received code is an authentication code or the audition code; a specifying means for specifying a product ID assigned to each music card from the authentication code; and the content database for storing music content With reference to the master information provided for each product ID, the product Determining means for determining whether there is a download history of the music content specified by the authentication code in the master information corresponding to D; and when determining that the master information has a download history, the distribution server receives A comparing means for comparing the first terminal ID and the second terminal ID for identifying the mobile phone that has downloaded the music content related to the product ID recorded in the master information; and the first terminal ID and the first terminal ID If the two terminal IDs do not match, the music content download process is not executed and an error notification is transmitted to the mobile phone, and the trial sound source data corresponding to the trial code is specified and Transmitting means for transmitting to a mobile phone, and the trial sound source data is stored in a mobile phone storing a dedicated playback program. A mobile phone that can be played back only on a talker and has received an instruction to play back the sample sound source data activates the reproduction program to play the sample sound source data, and erases or does not play the sample sound source data after playback. It is a music content distribution system characterized by changing to a possible format.

  Further, the music content distribution system corresponding to the music content distribution method according to the second invention may have the characteristics of the music content distribution system corresponding to the music content distribution method according to the first invention. In other words, the music content distribution system corresponding to the music content distribution method according to the second aspect of the invention receives from the mobile phone a free area capacity capable of storing new data in the storage area of the mobile phone. And a comparison means for comparing the data capacity of the music content corresponding to the product ID recorded in the master information and the free area capacity, and when it is determined that the free area capacity is not sufficient for the data capacity. And transmitting means for transmitting an error notification to the mobile phone without executing the music content download process. In this configuration, the music content distribution system corresponding to the music content distribution method according to the first invention has the characteristics of the music content distribution system corresponding to the music content distribution method according to the second invention. It is good.

  Furthermore, a music content distribution system corresponding to the music content distribution method according to the first and second inventions is a mobile phone that has read a download code for downloading the reproduction program attached to a music card. And receiving means for receiving the download code, and transmission means for specifying and transmitting a reproduction program corresponding to the download code to the mobile phone.

  According to the present invention, in downloading and selling music contents via a network, while adopting a simple and reliable charging method, it is possible to reduce errors that occur during downloading and to listen to music contents that the user wants to purchase with a simple operation before purchasing. It becomes possible to do. In addition to handling illegal copying, it is possible to obtain a mobile phone program necessary for these operations with a simple operation.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings. In addition, the following description is an example of embodiment of this invention, Comprising: This invention is not limited to the aspect demonstrated below.

  FIG. 1 is a block diagram showing a configuration of a music content distribution system according to the present invention. FIG. 2 is a diagram showing the configuration of a music card used in the music content distribution system according to the present invention. FIG. 3 is a diagram showing an example of the front and back surfaces of a music card used in the music content distribution system according to the present invention. FIG. 4 is a diagram showing an example of a concealment surface inside the music card used in the music content distribution system according to the present invention. FIG. 5 is a diagram showing an example of a music master stored in the music database of the music content distribution system according to the present invention. FIG. 6 is a diagram showing an example of a product master stored in the music database of the music content distribution system according to the present invention. FIG. 7 is a flowchart showing a flow of transmitting a download manager transmission request from the mobile phone in the music content distribution method according to the present invention. FIG. 8 is a flowchart showing a flow in which a distribution server that receives a download manager transmission request from a mobile phone transmits a download manager in the music content distribution method according to the present invention. FIG. 9 is a flowchart showing a flow of transmitting a music content trial request from the mobile phone in the music content distribution method according to the present invention. FIG. 10 is a flowchart showing a flow in which a distribution server that receives a request to listen to music content from a mobile phone transmits music data for listening in the music content distribution method according to the present invention. FIG. 11 is a flowchart showing a flow of transmitting a music content download request from the mobile phone in the music content distribution method according to the present invention. FIG. 12 is a flowchart showing a flow in which a distribution server that receives a music content download request from a mobile phone transmits music data for download in the music content distribution method according to the present invention. FIG. 13 is a flowchart showing a flow of storing music data by the mobile phone that has received the music data for download from the distribution server in the music content distribution method according to the present invention. FIG. 14 is a flowchart showing a flow of reproducing music data stored in a mobile phone in the music content distribution method according to the present invention.

  In FIG. 1, a music content distribution system 10 according to the present invention receives data relating to codes and the like read from a music card 40 by a mobile phone 30 via a communication carrier system 20. The music distribution server 11 included in the music content distribution system 10 acquires corresponding music data from the music database 12 and distributes it to the mobile phone 30 via the communication carrier system 20.

  The music card 40 used in the present invention is configured as shown in FIG. 2, and a download manager code and a trial listening code are attached to the back side folded in half, and a download code is attached to the inner concealed surface. . The structure of the music card 40 is such that the download manager code and the audition code are arranged at a position where the music card can be read in a state where the music card is displayed at a store or the like, and the download code cannot be read when displayed at a store or the like. For example, the download manager code and the audition code may be arranged on the front surface, or may be separately arranged on the front surface and the back surface. As for the download code, one code may be used for each song that can be downloaded, or one code may be used for all songs. As described above, the shape of the music card and the arrangement of the chords are not limited to the example of FIG. 2, but can be used in the present invention by being configured as shown in FIG.

  The code used as the download manager code, the audition code, and the download code may be a one-dimensional bar code or a two-dimensional code. However, since the download code is provided for each product as will be described later, it is preferable to use a two-dimensional code having a large number of patterns that can be handled. In addition, although the types of codes used for the codes may be different, it is preferable to use codes of the same system in consideration of minimizing the functions necessary for reading the codes.

  FIG. 3 shows an example of the front and back surfaces of the music card 40. The music card 40 is a distribution medium that replaces CDs. The jacket, title, artist name, etc. used on CDs are displayed on the front, and detailed information such as supported models are written on the back. Download manager code and audition code Can be considered. A user who wants to listen to the music card 40 at a store or the like reads the download manager code and downloads the download manager having the necessary functions on the mobile phone side according to the present invention to the mobile phone, and then listens. By reading the code and downloading the sample sound source data, and starting and playing the download manager of the mobile phone, it becomes possible to easily perform the sample listening without using a special dedicated listening device.

  FIG. 4 is a diagram showing an example of a concealment surface inside the music card used in the music content distribution system according to the present invention. The concealment surface is not limited to the configuration shown in FIG. 4 as long as it can be read only after purchase at a store or the like, and it is simple and reliable by purchasing a music card at the store or the like. After charging, you can download full sound sources that are not for trial listening. Regarding the arrangement of download codes, one code may be used for each downloadable music piece, or one code may be used for all music pieces as described above.

  Next, the flow of the music content distribution method according to the present invention will be described in order with reference to the flowcharts of FIGS. In the description of the flow, the configuration examples in FIGS.

  First, a flow in which a download manager transmission request is transmitted from a mobile phone and a distribution server that receives the transmission request transmits the download manager will be described with reference to FIGS. 7 and 8. First, as shown in FIG. 7, when a user who visits a store or the like to purchase music content finds an interested music card 40 and wants to listen to it, it is attached to the back side of the music card 40. The download manager code is read by the camera of the mobile phone 30 (S01), and a predetermined URL is specified in the read code, and the read code and the mobile phone 30 are read toward the music distribution server 11 of the specified URL. The terminal ID for specifying the ID is transmitted (S02).

  Subsequently, as shown in FIG. 8, the transmitted terminal ID and the code for the download request are received by the music distribution server 11 via the Internet (S03). It is determined from the terminal ID whether the received data is from a mobile phone (S04), and if it is not a request from the mobile phone, an error display instruction is transmitted to the transmitted terminal (S08). If the request is from a mobile phone, the mobile phone model is identified from the terminal ID (S05), and it is confirmed whether the mobile phone is compatible with the download manager (S06). If it is not a request from the compatible model, an error display instruction is transmitted to the transmitted terminal (S08), and if it is a request from the compatible model, the download manager is transmitted to the mobile phone 30 (S07). A dedicated download manager is installed in the mobile phone 30 that has received the message.

  Next, with reference to FIGS. 9 and 10, a flow will be described in which a request for listening to music content is transmitted from the mobile phone, and the distribution server that has received the request for listening to music content transmits music data for listening. First, as shown in FIG. 9, the user who has found the music card 40 that is interested in a store or the like starts a dedicated download manager installed on the mobile phone in the procedure described above (S11), The test listening code attached to the back of the music card 40 to be auditioned is read by the camera of the mobile phone 30 (S12), and the downloaded code is added with the identifier of the download manager to the music distribution server 11 of the specified URL. Transmit (S13). A transmission destination for transmitting such data may be set in the download manager, or a URL or a file path may be specified in the read code.

  Subsequently, as shown in FIG. 10, the transmitted music for listening request is received by the music distribution server 11 via the Internet (S14). It is confirmed whether or not the received code is for trial listening (S15), and if it is not for trial listening, the music data download process proceeds. In the case of trial listening, it is determined whether or not the identifier of the download manager is attached (S16). If the identifier is not attached, it is determined that reproduction is impossible even if the trial sound source data is transmitted. Then, an error display instruction is transmitted to the terminal (S22).

  If the identifier is attached, it is determined that the sound source data for trial listening can be reproduced, and the music ID for which the trial listening is requested is specified by the code for trial listening (S17). The 12 music master tables 122 of the music database are searched for the specified music ID (S18), and it is confirmed whether or not there is a music master corresponding to the corresponding music ID in the music database 12 (S19). If there is no music master corresponding to the music ID, the test sound source data cannot be transmitted, and an error display instruction is transmitted to the terminal (S22).

  If there is a music master corresponding to the music ID, the number of trial listening is recorded in the music master corresponding to the music ID (S20). Also, the trial sound source data corresponding to the music ID is acquired from the music data file 123, and the trial sound source data is streamed and delivered to the mobile phone 30 in a format not stored in the mobile phone 30 (S21). The distributed sound source data for trial listening may be deleted after being played back by the download manager downloaded by the mobile phone 30, or may be changed to a format that cannot be played back after being played back.

  FIG. 5 shows an example of a music master constituting the music master file 122 of the music database 12. The music master is provided with a record with an ID for identifying the music in units of music, and in addition to the title and artist name, a file path indicating the file size of the sample sound source data for the music and the file storage location is provided. It is recorded. Recording the number of accesses and logs for auditioning can also be used as marketing data.

  Subsequently, using FIG. 11 to FIG. 13, a music content download request is transmitted from the mobile phone, and the music distribution server that has received the music content download request transmits the music data for download and downloads it from the music distribution server. A flow of storing music data by a mobile phone that has received music data for use will be described. First, as shown in FIG. 11, the user who purchased the music card 40 at a store or the like activates a dedicated download manager installed in the mobile phone (S31), and wraps the music card 40 in the music card 40 packaging. The download code attached to the inner concealed surface is opened with the camera of the mobile phone 30 (S32). Further, the free space of the memory that can store the downloaded data in the mobile phone 30 is acquired from the mobile phone 30 (S33), and the identifier of the download manager is added to the read code and the free space of the acquired memory. Is transmitted to the music distribution server 11 of the specified URL (S34). A transmission destination for transmitting such data may be set in the download manager, or a URL or a file path may be specified in the read code.

  Subsequently, as shown in FIG. 12, the music distribution server 11 receives the code for the downloaded download request and the free space of the mobile phone 30 via the Internet (S35). It is confirmed whether or not the received code is for download (S36), and if it is not for download, the transmission process of the sample sound source data is advanced. In the case of download, it is determined whether or not an identifier of the download manager is attached (S37). If no identifier is attached, it is determined that reproduction is impossible even if music data for download is transmitted. Then, an error display instruction is transmitted to the terminal (S42).

  If the identifier is attached, it is determined that the music data for download can be reproduced, and the product ID requested to be downloaded is specified by the download code (S38). The product ID is not attached to each music piece, but is attached to each music card 40 sold to the user, and the music cards purchased by the product ID can be managed one by one. The 12 product master tables 121 of the music database are searched for the specified product ID (S39), and it is confirmed whether or not the product master corresponding to the corresponding product ID exists in the music database 12 (S40). If there is no product master corresponding to the product ID, the music data for download cannot be transmitted, so an error display instruction is transmitted to the terminal (S42).

  If there is a product master corresponding to the product ID, it is checked whether or not there is a past download record in the product master corresponding to the product ID (S43). If there is a download record, the terminal ID assigned to each mobile phone that requested the download recorded in the product master corresponding to the product ID is confirmed (S44), and the received terminal ID is stored in the product master. It is confirmed whether it matches the terminal ID of the mobile phone that has been downloaded in the past (S45). If they do not match, there is a possibility of unauthorized access from a person other than the original purchaser of the music card 40, so an error display instruction is transmitted to the terminal (S42).

  If the terminal IDs match, it can be determined that the access is from the same mobile phone 30 and that the purchaser of the music card 40 is operating, so the process proceeds to the next step for downloading. Next, the file size of the music data for download recorded in the product master corresponding to the product ID is confirmed (S46), and the received free space of the mobile phone 30 is equal to or larger than the file size recorded in the product master. (S47). If the file size is larger than the free space, the download music data cannot be stored in the mobile phone 30, so an error display instruction is sent to the terminal without sending the download music data. (S42). If the file size is smaller than the free space, the number of downloads is recorded in the product master corresponding to the product ID (S48), and the music data for download is transmitted to the mobile phone 30 (S49).

  In the step of confirming whether there is a download record (S43), if there is no download record, it is determined that the music card 40 has been purchased and is the first download, and the download process proceeds. The file size of the music data for download recorded in the product master corresponding to the product ID is confirmed (S50), and it is confirmed whether the free space of the received mobile phone 30 is equal to or larger than the file size recorded in the product master. (S51). If the file size is larger than the free space, an error display instruction is transmitted to the terminal without transmitting the music data for download (S42). If the file size is smaller than the free space, the received product ID corresponding to the product ID is recorded in the product ID and the number of downloads is 1 (S52), and the music data for download is transmitted to the mobile phone 30. (S49).

  Subsequently, as shown in FIG. 13, the mobile phone 30 receives the music data for download from the music distribution server 11 (S54). The received music data is given the terminal ID of the mobile phone 30 as a data header (S55), and the music data with the terminal ID header is stored in the storage area of the mobile phone 30. Such a series of operations of the mobile phone 30 is executed by the download manager previously downloaded.

  FIG. 6 shows an example of a product master constituting the product master file 121 of the music database 12. The product master is provided with a record with an ID for identifying the product for each music card that is sold, and in addition to the title and artist name, A file path indicating the storage location of the file is recorded. When the corresponding music data is downloaded, the terminal ID for identifying the mobile phone transmitted from the accessed mobile phone is recorded, and when the second and subsequent download requests are accepted, the terminal ID and Downloading is executed only when the terminal IDs of the mobile phones that have been accessed match.

  The merchandise master shown in the example of FIG. 6 needs to manage purchased music cards in units of one, and therefore, the same number of music cards are sold even for the same music piece. On the other hand, the music data files for download need only be transmitted for the same music, so at least one file is sufficient.

  Finally, a flow for reproducing music data stored in a mobile phone will be described with reference to FIG. If the user wants to play the downloaded music, the download manager is activated on the mobile phone 30 (S61). The download manager displays a list of music stored in the storage area of the mobile phone 30 on the display (S62), and accepts that specific music data has been selected (S63).

  The mobile phone 30 reads the music data of the selected music from the storage area, and acquires the terminal ID attached to the music data from the header of the music data (S64). Here, the acquired terminal ID is compared with the terminal ID of the mobile phone 30 operated by the user (S65). If the terminal IDs do not match, the music data is a copy of what has been downloaded from another terminal. It is determined that there is an error, and an error is displayed on the display of the mobile phone 30 (S68). If the terminal IDs match, it is determined that the operation is performed by an authorized user, and the read music data is reproduced. In this way, by permitting reproduction only when the terminal IDs match, it is possible to prevent the downloaded music data from being illegally copied and used.

It is a block diagram which shows the structure of the music content delivery system concerning this invention. It is a figure which shows the structure of the music card used in the music content delivery system concerning this invention. It is a figure which shows an example of the surface of a music card used in the music content delivery system concerning this invention, and a back surface. It is a figure which shows an example of the concealment surface inside the music card used in the music content delivery system concerning this invention. It is a figure which shows an example of the music master stored in the music database of the music content delivery system concerning this invention. It is a figure which shows an example of the goods master stored in the music database of the music content delivery system concerning this invention. 6 is a flowchart showing a flow of transmitting a download manager transmission request from a mobile phone in the music content distribution method according to the present invention. 5 is a flowchart showing a flow in which a distribution server that receives a download manager transmission request from a mobile phone transmits a download manager in the music content distribution method according to the present invention. 6 is a flowchart showing a flow of transmitting a music content trial request from a mobile phone in the music content distribution method according to the present invention. In the music content distribution method according to the present invention, it is a flowchart showing a flow in which a distribution server that receives a request to listen to music content from a mobile phone transmits music data for trial listening. 5 is a flowchart showing a flow of transmitting a music content download request from a mobile phone in the music content distribution method according to the present invention. In the music content distribution method according to the present invention, it is a flowchart showing a flow in which a distribution server that receives a music content download request from a mobile phone transmits music data for download. 5 is a flowchart showing a flow of storing music data by a mobile phone that has received music data for download from a distribution server in the music content distribution method according to the present invention. 4 is a flowchart showing a flow of reproducing music data stored in a mobile phone in the music content distribution method according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Music content delivery system 11 Music delivery server 111 Download manager 12 Music database 121 Goods master table 122 Music master table 123 Music data file 20 Communication carrier system 30 Cellular phone 40 Music card 41 Download manager code 42 Audition code 43 Download code

Claims (8)

A music content distribution method using a music card with an authentication code for identifying music content, a mobile phone capable of reading the authentication code, and a distribution server for distributing music content to the mobile phone via a network. And
The mobile phone reads an authentication code attached to the music card;
The mobile phone specifies a free space capacity capable of storing new data in a storage area of the mobile phone; and
The mobile phone transmitting the authentication code, the free space capacity and a first terminal ID identifying the mobile phone to the distribution server;
The delivery server receiving the authentication code, the free space capacity and the first terminal ID;
The distribution server identifying a product ID assigned to each music card from the authentication code;
The distribution server refers to master information provided for each product ID of a content database storing music content, and download history of music content specified by the authentication code in the master information corresponding to the product ID. Determining whether there is,
When the distribution server determines that the master information has a download history, the distribution server has downloaded the music content relating to the first terminal ID received by the distribution server and the product ID recorded in the master information. Comparing a second terminal ID identifying a mobile phone;
When the distribution server determines that the master information has a download history, the free space capacity received by the distribution server and the data capacity of the music content corresponding to the product ID recorded in the master information And a step of comparing
If the first terminal ID and the second terminal ID do not match, the distribution server sends an error notification to the mobile phone without executing the music content download process,
When it is determined that the free space capacity is insufficient for the data capacity, the distribution server transmits an error notification to the mobile phone without executing the music content download process. Distribution method of music content. A music card with an authentication code for specifying music content, a test code for specifying a test sound source of the music content, a mobile phone capable of reading the authentication code and the test code, and music content through the network to the mobile phone A music content distribution method using a distribution server that distributes
The mobile phone reads an authentication code or a listening code attached to the music card;
The mobile phone transmits the authentication code or the audition code and a first terminal ID for identifying the mobile phone to the distribution server;
The distribution server receiving the authentication code or the audition code and the first terminal ID;
The distribution server comprises identifying whether the received code is an authentication code or a listening code;
If the received code is identified as an authorization code,
The distribution server identifying a product ID assigned to each music card from the authentication code;
The distribution server refers to master information provided for each product ID of a content database storing music content, and download history of music content specified by the authentication code in the master information corresponding to the product ID. Determining whether there is,
When the distribution server determines that the master information has a download history, the distribution server has downloaded the music content relating to the first terminal ID received by the distribution server and the product ID recorded in the master information. Comparing a second terminal ID for identifying a mobile phone,
When the first terminal ID does not match the second terminal ID, the distribution server transmits an error notification to the mobile phone without executing the music content download process. ,
If the received code is identified as a sample code,
The distribution server has the step of identifying the sample sound source data corresponding to the sample code and transmitting it to the mobile phone; and
The audition sound source data can be reproduced only on a mobile phone in which a dedicated reproduction program is stored,
The mobile phone that has received the instruction to reproduce the sample sound source data activates the reproduction program to reproduce the sample sound source data, and after the reproduction, changes the sample sound source data to a format that cannot be erased or reproduced. Music content distribution method. When the distribution server executes download processing of the music content, transmitting sound source data for playing the music content to the mobile phone;
When the mobile phone receives the sound source data, the mobile phone has a step of adding the terminal ID of the mobile phone and storing the sound source data in a storage area of the mobile phone,
The sound source data can be reproduced only on a mobile phone in which a dedicated reproduction program is stored,
The mobile phone that has received the playback instruction for the sound source data activates the playback program, compares the terminal ID of the mobile phone with the terminal ID attached to the sound source data, and compares the terminal ID of the mobile phone with the sound source. 3. The music content distribution method according to claim 1, wherein reproduction of the sound source data is executed when the terminal IDs attached to the data match. The mobile phone reading a download code for downloading the reproduction program attached to the music card;
The mobile phone transmitting the download code to the distribution server;
The distribution server receiving the download code;
The distribution server identifying and transmitting a reproduction program corresponding to the download code to the mobile phone;
The music content distribution method according to claim 2, wherein the music content distribution method comprises: A music content distribution system for distributing music content to a mobile phone,
Receiving means for receiving the authentication code and the first terminal ID for specifying the mobile phone from the mobile phone that has read the authentication code for specifying the music content attached to the music card;
A specifying means for specifying a product ID assigned to each music card from the authentication code;
With reference to the master information provided for each product ID in the content database storing music content, it is determined whether the master information corresponding to the product ID has a download history of the music content specified by the authentication code A determination means;
If it is determined that there is a download history in the master information, the mobile phone that has downloaded the music content related to the first terminal ID received by the distribution server and the product ID recorded in the master information is specified. A comparison means for comparing the second terminal ID;
A transmitting means for transmitting an error notification to the mobile phone without executing the music content download process when the first terminal ID and the second terminal ID do not match;
Receiving means for receiving from the mobile phone a free area capacity capable of storing new data in the storage area of the mobile phone;
A comparison means for comparing the data capacity of the music content corresponding to the product ID recorded in the master information and the free space capacity;
When it is determined that the free space capacity is insufficient for the data capacity, a transmission unit that transmits an error notification to the mobile phone without executing the download process of the music content;
A music content distribution system comprising: A music content distribution system for distributing music content to a mobile phone,
A first code for identifying the authentication code or the audition code and the mobile phone from a mobile phone that has read the authentication code for identifying the music content attached to the music card or the audition code for specifying the test sound source of the music content. Receiving means for receiving the terminal ID;
Identifying means for identifying whether the code received by the receiving means is an authentication code or the audition code;
A specifying means for specifying a product ID assigned to each music card from the authentication code;
With reference to the master information provided for each product ID in the content database storing music content, it is determined whether the master information corresponding to the product ID has a download history of the music content specified by the authentication code A determination means;
If it is determined that there is a download history in the master information, the mobile phone that has downloaded the music content related to the first terminal ID received by the distribution server and the product ID recorded in the master information is specified. A comparison means for comparing the second terminal ID;
A transmitting means for transmitting an error notification to the mobile phone without executing the music content download process when the first terminal ID and the second terminal ID do not match;
A transmission means for specifying the sample sound source data corresponding to the sample code and transmitting it to the mobile phone,
The audition sound source data can be reproduced only on a mobile phone in which a dedicated reproduction program is stored,
The mobile phone that has received the instruction to reproduce the sample sound source data activates the reproduction program to reproduce the sample sound source data, and after the reproduction, changes the sample sound source data to a format that cannot be deleted or reproduced. Music content distribution system. Receiving means for receiving from the mobile phone a free area capacity capable of storing new data in the storage area of the mobile phone;
A comparison means for comparing the data capacity of the music content corresponding to the product ID recorded in the master information and the free space capacity;
When it is determined that the free space capacity is insufficient for the data capacity, a transmission unit that transmits an error notification to the mobile phone without executing the download process of the music content;
The music content distribution system according to claim 6, further comprising: Receiving means for receiving the download code from a mobile phone that has read the download code for downloading the playback program attached to the music card;
The music content distribution system according to claim 6, further comprising: a transmission unit that identifies and transmits a reproduction program corresponding to the download code to the mobile phone.

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