JP2006178679A - Content management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and program for providing a content file so that content data are not reusable by preventing a purchaser of a content file from copying the content file, or a content management system. <P>SOLUTION: This system comprises a provider terminal for providing content files, a purchaser terminal for purchasing or browsing content files, and a content providing server. The content providing server comprises a content file conversion means converting a content file transmitted by the provider terminal to a secondary use prevention file; a content presentation means presenting, in response to the purchaser terminal, a content file and information for the content file; and a sales means selling one content file in response to an instruction to purchase the one content file. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a content management system that manages content such as document files, image files, video files, and audio files requested by clients. More specifically, the present invention relates to a content management system that can prevent duplication of a content file, prevent outflow due to unauthorized copying of a copyrighted work, and protect the provided content.

  With the spread of the Internet in recent years, various data are provided as content information via the Internet. The information includes text data and data such as images, moving images, and sounds.

Various content data can be sold by the content provider via the Internet, but the content data created over a long period of time is copied to the purchaser who has purchased it by downloading, and the same content data is sent without going through the content provider. May be subject to significant damage by being distributed on the Internet.

  Here, as a technique for preventing copying of an electronic file, a method of managing a digital watermark or a content file by encrypting with an encryption key is known (for example, Patent Document 1).

JP 2004-303265 A

  However, when these electronic files are purchased from a content provider, they can be obtained by downloading the content file. However, depending on the contents of the file, a burden is placed on the terminal of the purchaser, and A content file with a large file size takes time to download, and particularly when the line is congested, it may take a long time to complete the download.

  Further, when the data is completely moved to the purchaser side by downloading, the use state of the content file cannot be subsequently confirmed from the content provider side. For this reason, it is impossible to know what kind of content is actually required by the purchaser.

  Further, when the specification of the content file is changed or a problem occurs, the version is updated with a correction file. However, each time the version is upgraded, the purchaser has to download a designated file in response to a request for downloading a correction file or the like.

  In view of the above-mentioned problems related to content management, the present invention prevents the content file purchaser from copying the content file, prevents secondary use of the content data, and changes the content file. It is an object of the present invention to provide a content management method and program therefor, or a content management system for smoothly performing updating without bothering the purchaser.

  Therefore, as a result of intensive studies in order to solve the above-mentioned problems, the present inventor provides a content management method and a program thereof, or a content management system described below.

  (1) A content management system for providing a content file, wherein a provider terminal to which the content file is provided, a purchaser terminal for purchasing or browsing the content file, and a content management server include a communication line network And the content management server is connected to the content file conversion means for converting the content file transmitted by the provider terminal into a secondary use prevention file, the content file in response to the purchaser terminal, and Content presentation means for presenting information on the content file; and sales means for selling the one content file in response to an instruction to purchase one of the content files from the purchaser terminal; Content with Management systems.

  According to the present invention, a provider terminal in which content is created, a purchaser terminal for purchasing or browsing the content, and a content management server are connected via a communication line network and provided to the purchaser terminal. The content file transmitted by the provider terminal is converted into a secondary use prevention file, and the content file and information on the content file are presented in response to the purchaser terminal, In response to an instruction to purchase one of the content files from the purchaser terminal, the one content file is sold to the purchaser.

  Therefore, according to the present invention, in view of the problems related to the content management system described above, after the provided content file is converted into a secondary use prevention file, the converted file is browsed according to the purchaser's request. Can be sold. As a result, illegal copy of the content file can be prevented for a malicious purchaser or the like, and the copyrighted work of the provider or the like can be easily protected and managed.

  (2) The content management unit according to (1), wherein the content presentation unit allows the purchaser terminal to browse the content file by presenting the content file within a predetermined time and / or a predetermined number of times. system.

  According to the invention of (2), the content management system presents the content file from the purchaser terminal to the purchaser within a predetermined time and / or a predetermined number of times. Therefore, the purchaser can confirm the content of the content he / she intends to purchase in general. That is, according to this content management system, it is possible to sufficiently provide information for determining purchase of content intended to be purchased.

  (3) The content according to (1), wherein the content presentation unit presents the content of the content file to the purchaser's terminal by one or more distribution units among a group consisting of a moving image, an image, a character, and a sound. Management system.

  According to the invention of (3), not only content files consisting of text, video and images, content consisting of combinations of video and music such as movies, content consisting of combinations of characters and images such as stock market conditions, and games It is possible to correspond to various file formats such as content files including a plurality of types of characters, images, video, and audio, and it becomes possible to manage all contents.

  (4) The content management system according to (1), further comprising purchase content recording means for recording a content file purchased from a provider terminal for each purchaser.

  According to the invention of (4), since the purchase content recording means for recording the content file for each purchaser is provided, it is possible to browse the content file purchased in the past after the purchase of the content file or at the time of purchase. is there. That is, according to this content management system, by presenting a content file purchased in the past, information for determining purchase of content intended to be purchased can be sufficiently provided to the purchaser.

  (5) In the content management system described in (1), when the content file provided from the provider terminal is update data, the content management system further includes an update unit that updates the corresponding content file to a new content file. Content management system.

  According to the invention of (5), since the purchaser's content file can be updated without bothering the purchaser who purchased the content file, the purchaser has to update the purchased content file such as downloading the file. Content files can always be kept up-to-date.

  (6) A method in which a provider terminal where content is created, a purchaser terminal for purchasing the content file, and a content providing server are connected via a communication line network, and the content is provided to the purchaser terminal. A content recording step in which the content providing server records a content file transmitted by the provider terminal, and the content providing server relates to the content file and the content file in response to the purchaser terminal. A content file presenting step for presenting information; and in response to an instruction from the purchaser terminal to purchase one of the content files from the purchaser terminal, the content providing server sends the one content file to the purchaser. Sales steps to sell and Content management method with.

  (7) The content management step according to (6), wherein the content presentation step allows the purchaser terminal to browse the content file by presenting the content file within a predetermined time and / or a predetermined number of times. Method.

  (8) The content according to (6), wherein the content presentation step presents the content of the content file to the purchaser's terminal by one or more distribution means among the group consisting of moving images, images, characters, and sounds. Management method.

  (9) The content management method according to (6), further comprising a purchase content recording step of recording, for each purchaser, a content file purchased from a provider terminal.

  (10) In the content management system according to (6), when the content file provided from the provider terminal is update data, an update step of updating the corresponding content file to a new content file is further provided. Content management method.

  (11) A program for executing a method of providing the content described in (6) to a purchaser terminal.

  According to the present invention, in view of the problems related to the conventional content management system, the provider can surely manage the copyright of the content browsed or sold to the purchaser, and the purchaser always manages the purchased content file. Keep up to date.

  Preferred embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the content management system 1 includes a provider terminal 20 that creates a content file (hereinafter, content including a plurality of characters, images, videos, and the like is referred to as a “content file”). A content providing server 10 that edits, records, presents, and provides the content file, and a purchaser terminal 30 that allows the purchaser to view and purchase the content file. The provider terminal 20 and the purchaser terminal 30 may be composed of a plurality of terminals as shown in FIG.

  The provider terminal 20 is a computer terminal, and includes an input / output means 21, a control means 22, and a communication means 23 as shown in FIG. The provider terminal 20 is a computer terminal in which a content file that is content is created.

  The input / output unit 21 of the provider terminal 20 is not limited to a keyboard or a mouse as an input unit, and may be an input unit such as a touch input method. The output means corresponds to a display device such as a CRT display or a liquid crystal display.

  The control unit 22 of the provider terminal 20 may be, for example, a central processing unit (CPU), and may include an arithmetic unit and a main storage device for operating the central processing unit, a communication unit 23, an input / output unit. 21 may be included.

  The communication means 23 of the provider terminal 20 is an interface for performing communication using the communication line network 100, and may be a network interface card, a modem, or the like, for example.

  The content providing server 10 includes a control unit 11, a communication unit 12, an input / output unit 13, a data conversion unit 14, a database 16 including a content recording unit 15 and a purchased content recording unit 19, a content presentation unit 17, And sales means 18. The content providing server 10 is a computer that edits and records a content file input from the provider terminal 20 via the communication line network 100, and allows the content file to be viewed and purchased from the purchaser terminal 30. is there.

  The control means 11 of the content providing server 10 may be, for example, a central processing unit (CPU), and may include an arithmetic unit and a main storage device for operating the central processing unit, the communication means 12, and input / output Means 13 and an interface with the database 16 may be included.

  The communication means 12 of the content providing server 10 is an interface for performing communication using the communication line network 100, and may be a network interface card, a modem, or the like, for example.

  The input / output unit 13 of the content providing server 10 is not limited to a keyboard or a mouse as an input unit, but may be an input unit such as a touch input method. The output means corresponds to a display device such as a CRT display or a liquid crystal display. The input / output unit 13 is a unit for the administrator or the provider to edit or convert the data format of the content file transmitted from the provider terminal 20.

  The data conversion means 14 is a program format that is displayed by combining, for example, A data serving as content data and a B program that enables display of the content. It is a means for converting data to a file format that cannot be pasted. For example, there is means for converting content data into a format that cannot be copied by further processing a flash format (.swf) file, which is a format that cannot use a normal copy function of an OS (Operating System).

  The database 16 is a means for recording data and the like of the content providing server 10 and includes a content recording means 15 such as a content file and a purchased content recording means 19 for recording a content file purchased by the purchaser.

  The content recording means 15 records a normal content in which a content file or a plurality of content files are bundled. Content recorded by the content recording means 15 includes character files such as characters and symbols, image files such as drawings, photos, and paintings, movie files such as movies and animation images, games, and sound files such as music and sound. In addition, various types of files combining these are included.

  The content presentation unit 17 is a unit for presenting the content file and information regarding the content file to the purchaser terminal 30. The content file presenting means 17 includes a presentation mode that presents content contents under a limited condition of a specific time and / or a specific number of times, and a purchase mode in which the content can be viewed freely without limitation of the time and the number of times. Content contents are presented by two means.

  The sales means 18 is a means for selling content files that the purchaser has decided to purchase. The sales means 18 obtains information related to the payment of the price from the purchaser terminal 30, and the purchaser terminal 30 decides to purchase the content file or the content file viewable information (for example, the content file). ID, address, etc. indicating the location of the content file in the server. Payment of the purchaser's price may be made by transfer via a bank server, or may be made by the purchaser entering a card number. When such a payment is made, information may be transmitted and received using encrypted communication such as SSL (Secure Socket Layer).

  The purchaser terminal 30 is a computer terminal, and includes an input / output means 31, a control means 32, and a communication means 33 as shown in FIG. The purchaser terminal 30 is a computer terminal for a purchaser to freely search, browse, and purchase a content file.

  The input / output means 31 of the purchaser terminal 30 is, for example, a purchaser / interface such as a keyboard or a mouse as input means, and a display device such as a CRT display or liquid crystal display as output means.

  The control means 32 of the purchaser terminal 30 may be, for example, a central processing unit (CPU), and may include an arithmetic unit for operating the central processing unit, a main storage device, a communication unit 33, an input / output unit. 31 may be included.

  The communication means 33 of the purchaser terminal 30 is an interface for performing communication using the communication line network 100, and may be a network interface card, a modem, or the like, for example.

  Since the purchaser terminal 30 is a normal computer terminal, the purchaser terminal 30 may be provided with a means for recording a content file, and further, a credit card for realizing payment of a fee to the sales means 18 of the content providing server 10. A reader, means for handling electronic money, and the like may be provided.

  Next, specific operations executed by the content management system 1 will be described with reference to the flowcharts of FIGS.

  The content file created by the provider terminal 20 is transmitted from the provider terminal 20 to the content providing server 10 via the communication line network 100 (S01). The content providing server 10 receives the transmitted content file, and the control means 11 performs data conversion means 14 such as converting the received content file format into a file format that cannot be used secondarily (S02). The content is recorded in the content recording means 15 (content recording step: S03). The content file data conversion means 14 may be performed by an administrator or a provider via the input / output means 13 of the content providing server 10, but the control means of the content providing server 10 is controlled by the administrator or the provider. It may be performed without input / output.

  Here, when the same content file as the content file to be recorded exists in the content providing server 10, the content recording unit 15 updates the content file, and the content file is rewritten with the latest information.

  When there is an access request from the purchaser terminal 30 to the content providing server 10 via the communication line network 100 (S04), information on the content file for which the access request has been made is displayed on the purchaser terminal 30 ( S05). The information displayed here is not the content file itself but data related to the content file (hereinafter, “content data” as appropriate). For example, if the content file is a document file, the content data includes information such as the contents of the book and the author, and if it is a video file, it may be a movie or game title, its contents, or an audio file. For example, an outline of the file such as the name of the music and the artist name is displayed.

  When the content providing server 10 determines that the purchaser who has seen the information about the content file has received a browsing request regarding the content file from the purchaser terminal 30 (S06), the browsing mode is executed (S07). Here, the browsing request regarding the content file is a request for browsing the content file, for example, and a request for confirming the content in a so-called restricted state. If there is a browsing request, the browsing mode is executed (content presentation step: S07). The browsing mode is a function that limits the time and / or the number of times, and permits the purchaser to browse the content file in the limited situation via the purchaser terminal 30.

  Next, when it is determined that the content providing server 10 has received an instruction to browse purchased content data from the purchaser terminal 30 (S08), the purchased content data recorded in the purchased content recording means 19 is displayed (S08). S09).

  Next, when the content providing server 10 determines that an instruction to purchase a content file has been received from the purchaser terminal 30 that has viewed the content file (S10), the sales unit 18 sells the content file that has received the instruction. (Sales step: S11). Here, the sales means 18 performs sales by transmitting the content file to the purchaser terminal 30. Also, a means for causing the purchaser to occupy the content file by transmitting information such as a password or license for releasing the use restriction of the content file, an address where the content file is stored, etc. via the communication line network 100. There may be.

  After the above sales step S11, the content data purchased by the purchaser may be recorded in the purchase content recording means 19 (purchased content recording step).

  And after completion | finish of step S10, it returns to step S04. When new content data is transmitted from the provider terminal 20 again, the process starts from step S01.

  Next, a case where there is an access to the content providing server 10 from the purchaser terminal 30 or the provider terminal 20 will be described.

  FIG. 5 is an image screen of the top screen 101 displayed on each terminal when the content providing server 10 is accessed from the purchaser terminal 30 or the provider terminal 20. The top screen 101 includes, for example, a category 102 indicating the type of content file, a product search window 103 for searching for products, and a new product window 104 indicating new products.

FIG. 6 shows information displayed on each terminal when the content providing server 10 is accessed from the purchaser terminals 30a, 30b or the provider terminals 20a, 20b when the content file information is displayed for each provider. This is another image screen of the top screen 106 to be displayed. The top screen 106 includes a provider-specific product window 107 on which the provider displays products, and a provider window 108 on which the provider's products are displayed.

Here, the provider-specific window 107 may be freely changeable in order of popularity or new arrival in which access is frequently performed.

Each window of the provider window 108 presents only one file. However, by storing a plurality of image files and accessing the files by the purchaser, an exhibition such as a solo exhibition can be opened. You may do it. A virtual store may be provided so that different types of content files can be stored.

  When the accessed purchaser or provider selects the login 105 or the login 109, the login screen 111 of FIG. 7 is displayed. When the purchaser logs in for the first time, the link 113 is selected and account registration is performed. If the account has already been registered, account login 114 is performed. This account login 114 identifies the purchaser or provider. The authentication when the purchaser logs in may be performed by SSL (Secure Sockets Layer) authentication.

  As shown in FIG. 8, the purchaser uses the search tool 120 (normal keyword search or category-specific search) to describe the information that he / she searches among the content files recorded in the content recording means. Search for content files. The purchaser may perform a search from the product searches 103, 110, and 112 as illustrated in FIGS. 5 to 7, but may perform a search by a detailed search 121 of the product search as illustrated in FIG. The detailed search may have a function of narrowing down search conditions from the category of the content file, or may have a function of narrowing down by, for example, author name (provider name), price, registration date, and the like.

  An example of table data in which content files are organized by category is shown in FIG. The table data 50A is table data of content files classified as “books”, and the table data 50B is table data of content files classified as “music”. Here, the table data 50A and 50B may be displayed as they are on the output means of the input / output means 31 of the purchaser terminal 30. Here, as items characterizing the content file, for example, in the case of a book, the title 51a, the registration date 52a (the date when the content file was recorded in the content recording means 15), the last update date 53a (the content data was finally updated) Date), provider 54a, author 55a, and price 56a. In the case of music, title 51b, registration date 52b (date recorded in the content file), announcement date 53b (date actually released in the market) ), A provider 54b (or a production company), an artist name 55b, and a price 56b. In addition, in an information file such as a race result such as a horse race, information such as a race name, a race date, a provider, a running horse, and a price is shown.

  When the table of FIG. 9 is displayed on the output unit of the input / output unit 31 of the purchaser terminal 30, the purchaser selects the content data title and the content data 60 relating to this content file is displayed. (See FIG. 11). The content data is not the content file itself but data related to the content file. Data related to the content file includes, for example, bibliographic items about the content file, an outline of the content file, and a simple evaluation, as well as functions such as “Purchase 63” and “Browse 64”. Display the link to be realized.

  The content evaluation 62 includes the number of purchasers, the number of viewers, a simple evaluation, etc. The simple evaluation includes, for example, the number of purchasers of the content data, the number of viewers who have activated a later-described viewing mode, and the evaluation of users. And price evaluation. The content outline 65 describes the outline (review) of the content file.

  The display content of the content data may be only the bibliographic items of the content data and the content overview 65 if it is a purchaser. The display content of the provider or the administrator of the content providing server 10 is the content data display content. The display content may be different depending on the target person, such as including a simple evaluation in addition to the bibliographic item and the content overview 65.

  When the link that realizes the above-mentioned “Browse 64” function is selected, for example, the browsing mode screen 80 of FIG. 12 is displayed, and the title of the content file, the table of contents, and the content of the content file are temporarily browsed. Is possible. Here, the “browsing mode” is a function for presenting the title, outline, content file content, and the like of the content file to the purchaser terminal 30. The browsing mode 81 may be activated only for a certain period of time, only a certain content (part) may be browsed, or may be activated only a certain number of times. In FIG. 12, the browsing possible time of browsing is 2 minutes, and it is displayed that 1 minute and 20 seconds have already passed, but the time is determined for each page, and the page is automatically moved as the time passes. It is good as well. For the same content file, the number of times of browsing is up to 2 times, and this time the first time browsing is displayed on the startup screen of the browsing mode. When the browsing mode is selected, the screen may not be displayed or the move button 82 may not be displayed. Actually, the display of the browsing mode 81 may be limited as the browsing time or / and as the number of browsing times.

  In the case of video content, for example, a browsing mode screen 83 of FIG. 13 is displayed, and a content file title 84, preview 85, and content description 86 are displayed. Similarly to the browsing mode 81 in FIG. 12, the browsing mode screen 83 may be activated only for a certain period of time, or only certain content (part) may be browsed, or activated only a certain number of times. It may be possible. In the content title 84, a table of contents for each chapter is displayed for a movie file, and a table of contents for each song is displayed for a music file. The preview 85 displays an image or video to be browsed. In the content description 86, characters may be displayed. For example, subtitles may be displayed for movie files, lyrics may be displayed for music files, and conversations during the game may be displayed for games. The content description 86 may be displayed in a form incorporated in the preview 85.

  When a link that realizes the function of “purchase 63” for a content file is selected, a program for selling the content file is activated. The sales of the content file is performed by the sales means 18 of the content providing server 10. In addition, the display of the content file after purchase has the same configuration as the browsing mode 81 as shown in the purchase mode screen 87 of FIG. 14 in the case of a text file, etc., and the restriction performed in the browsing mode 81 has been lifted. Displayed with status. Further, the purchase mode in the case of a file including an image / video is also displayed with the same configuration as in FIG. 12, and the purchaser can view the video and the like without being limited in time and / or number of times.

  The viewing mode screens 80 and 83, which are content files displayed at the time of browsing, and the purchase mode screen 87, which is a content file displayed after purchase, can only be browsed or viewed from the purchaser terminal to the content file. The content is converted into a format that cannot be copied by the data conversion means 14. Therefore, the purchaser cannot secondary use the provided content file by copying or the like.

  Here, a link for realizing the function of “read a review” or “read a user's evaluation” may be added to the above-mentioned “Purchase 63” or “View content 64” field. By selecting "Read" or "Read user's evaluation", a screen relating to the evaluation from the reader is displayed on the purchaser terminal 30, and the impression (review) from the purchaser and the evaluation of this content data May be presented to the purchaser. By making this presentation, the content file provider and the system administrator can confirm the evaluation of the content file, the evaluation of the price, and the like by the content evaluation 62, and the purchaser is the purchase trend of the purchaser of the content file. Can be grasped.

  If the purchaser wishes to view a content file that has already been purchased after purchasing the content file or considering the purchase, for example, a “purchased content file list 88” shown in FIG. Is displayed. Purchaser A has purchased a network security content file (for example, wireless LAN security measure (1) 89) in the past, and the title, author, purchase date, and size of this content file are displayed. . This title can function as a link, and the content file itself or a program displaying the content data of the content file is activated by this link.

  As shown in FIG. 16, it is a screen image 180 of an interface used by the administrator of the content providing server 10 to manage the database 16. The content providing server 10 calculates the order number 182 of the purchaser as an electronic publishing system and the statistics 183 of customers and products, and provides this information to the administrator.

  In providing the content file, as an example, a mode in which a content file for which a predetermined period has elapsed may be provided to the purchaser free of charge. In this case, in order to notify the purchaser that the corresponding content file has become free, the purchaser terminal 30 displays that the content file can be downloaded free of charge. Furthermore, the content file whose period has elapsed may be deleted from the server. In this case, the content providing server 10 may perform e-mail transmission or the like to the purchaser terminal 30 in order to notify the purchaser that the content file corresponding to the purchaser will be deleted.

  The content management system and the content file providing method for realizing such an embodiment can be realized by a program executed on a computer or a server. Examples of the storage medium for this program include an optical storage medium, a tape medium, and a semiconductor memory. Further, a storage device such as a hard disk or a RAM provided in a server system connected to a dedicated communication network or the Internet may be used as a storage medium, and the program may be provided via the network.

  As mentioned above, although embodiment of this invention was described, it only showed the specific example and does not specifically limit this invention. Further, the effects described in the embodiments of the present invention only list the most preferable effects resulting from the present invention, and the effects of the present invention are not limited to the effects described in the embodiments of the present invention.

  The content file provided to the purchaser of the present invention is not limited to a still image, and may be a moving image such as a video image or a medium storing music and audio. Further, a combination of two or more of the group consisting of a still image, a moving image, music, and sound may be provided to the purchaser as one content.

It is a block diagram which shows the structure of the content management system 1 which is an Example of this invention. It is a figure which shows the hardware constitutions of the content management system 1 which is an Example of this invention. It is a flowchart figure which shows the operation | movement which the content management system 1 which is an Example of this invention performs. It is a flowchart figure which shows the operation | movement which the content management system 1 which is an Example of this invention performs. An example in which a screen image of a top screen, which is an embodiment of the present invention, is displayed on the purchaser terminal 30 is shown. The other example which is the Example of this invention and the screen image of a top screen is displayed on the buyer terminal 30 is shown. An example in which a screen image of a login screen, which is an embodiment of the present invention, is displayed on the purchaser terminal 30 is shown. An example in which a screen image of a product search screen, which is an embodiment of the present invention, is displayed on the purchaser terminal 30 is shown. The image example which is the Example of this invention and the table data which arranged the content file for every category is displayed on the buyer terminal 30 is shown. The example which the screen image of the goods introduction screen which is an Example of this invention is displayed on the buyer terminal 30 is shown. The image example which is an Example of this invention and content data is displayed on the buyer terminal 30 is shown. The image example which is an Example of this invention and the browsing mode is displayed on the buyer terminal 30 is shown. The example of the image which is an Example of this invention and the browsing mode is displayed on the buyer terminal 30 is shown. The image example which is the Example of this invention and the content file after purchase is displayed on the buyer terminal 30 is shown. The example which is the Example of this invention and the image of the purchased content file list is displayed on the purchaser terminal 30 is shown. The example of the management screen image of the content management system, which is an embodiment of the present invention, is displayed on the purchaser terminal 30.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Content management system 10 Content provision server 14 Data conversion means 15 Content recording means 16 Database 17 Content presentation means 19 Purchased content recording means 20 Provider terminal 30 Purchaser terminal 60 Content data 81 Viewing mode 100 Communication line network 101 Top screen 110 Login Screen 120 Detailed search screen 140 Detailed introduction screen

Claims (11)

A content management system for providing a content file, wherein a provider terminal to which the content file is provided, a purchaser terminal for purchasing or browsing the content file, and a content management server are connected via a communication line network And
The content management server includes a content file conversion means for converting a content file transmitted by the provider terminal into a secondary use prevention file;
In response to the purchaser terminal, content presentation means for presenting the content file and information related to the content file;
A content management system comprising: sales means for selling the one content file in response to an instruction to purchase one of the content files from the purchaser terminal.   2. The content management system according to claim 1, wherein the content presentation unit allows the purchaser terminal to browse the content file by presenting the content file within a predetermined time and / or a predetermined number of times.   2. The content management system according to claim 1, wherein the content presentation unit presents the content of the content file to the purchaser's terminal by one or more distribution units among a group of moving images, images, characters, and sounds.   2. The content management system according to claim 1, further comprising purchase content recording means for recording a content file purchased from a provider terminal for each purchaser.   2. The content management system according to claim 1, further comprising update means for updating the corresponding content file to a new content file when the content file provided from the provider terminal is update data. . A provider terminal in which content is created, a purchaser terminal for purchasing the content file, and a content providing server are connected via a communication line network to provide the content to the purchaser terminal,
A content recording step in which the content providing server records a content file transmitted by the provider terminal;
A content file presenting step in which the content providing server presents the content file and information on the content file in response to the purchaser terminal;
A sales step in which the content providing server sells the one content file to the purchaser in response to an instruction to purchase one of the content files from the purchaser terminal. Management method.   The content management method according to claim 6, wherein the content presentation step causes the purchaser terminal to browse the content file by presenting the content file within a predetermined time and / or a predetermined number of times.   The content management method according to claim 6, wherein the content presentation step presents the content of the content file to the purchaser's terminal by one or more distribution means among a group consisting of moving images, images, characters, and sounds.   7. The content management method according to claim 6, further comprising a purchase content recording step of recording a content file purchased from a provider terminal for each purchaser.   7. The content management method according to claim 6, further comprising an update step of updating the corresponding content file to a new content file when the content file provided from the provider terminal is update data. .   The program for performing the method of providing the content file of Claim 6 to a buyer terminal.

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