JP2007011633A - Data reproduction program, program for creating the same, and information recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate content distribution by enhancing security and reducing costs, and increase advertising effects. <P>SOLUTION: A data reproduction program includes the processing of: accessing a link destination advertising management server according to a link destination specification code; downloading advertising data from the advertising management server if the advertising management server can be accessed, or reading out default setting image data if the advertising management server cannot be accessed; outputting the advertising data or default setting image data as images or the like; reading out encrypted content data; decrypting the encrypted content data with decryption data in one-to-one correspondence to the encrypted content data; and outputting the content data as images or the like. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a data reproduction program obtained by combining content data and a program as a data player that outputs the content data as an image or sound, a program for creating the program, and an information recording medium.

2. Description of the Related Art Conventionally, software operation management systems for the purpose of rationally managing software operations are known. For example, in the operation management system described in JP-A-10-83298, the operation management program manages the operation of the managed software. When a preset in-management function such as a function related to data generation is executed, the battery value is referred to, and if the value is 0 or more, the execution of the function is permitted. The battery value is counted down as the function is executed, but can be increased by supplying the replenishment value with a replenishment disk such as a flexible disk, thereby extending the expiration date of the managed software. The supplementary value can also be supplied using a communication line.
Japanese Patent Laid-Open No. 10-83298

  In recent years, the electronic distribution market that distributes content including moving image and still image data, music data, and the like is in a large growth process. In such an electronic distribution market, the streaming method has become mainstream due to security problems. However, in the streaming method, as the number of users increases, the cost increases and the operator is pressed. Therefore, it is not easy to distribute content. For this reason, if the distribution of content can be performed easily, the electronic distribution market will be further expanded.

  On the other hand, when content data and a program as a data player that outputs the content data as an image or sound are combined and distributed, security is not secured if it is easy to separate the content data from the data player. . In order to realize the sound development of the electronic distribution market, a method that can ensure security is necessary.

  Further, by integrating the content data and the advertisement data, the content provider can obtain an advertisement fee income. For this reason, it is possible to reduce the cost burden on the viewer, and as a result, the electronic distribution market is expected to become more active.

  The present invention has been made in view of such circumstances, and is a data reproduction program capable of ensuring security, reducing costs, facilitating distribution of contents, and enhancing advertising effects. An object of the present invention is to provide a program and an information recording medium for creating the program.

  (1) In order to achieve the above object, the present invention has taken the following measures. That is, the data reproduction program according to the present invention includes a process for detecting a signal for selecting a link destination designation code, a process for reading a link destination designation code when the signal is detected, and the read link destination designation code. Based on the process of connecting to the linked advertisement management server, and if the connection to the advertisement management server can be made, while downloading the advertisement data from the advertisement management server, while the connection to the advertisement management server is not possible, A process of reading the initial setting image data, a process of outputting the downloaded advertisement data or the initial setting image data as an image or sound, a process of reading the encrypted content data, and the encrypted content data The encrypted content data using the decrypted data associated with A process of decoding, is characterized by being configured the content data and outputting an image or sound, the sequence of processing as instructions a computer can execute including.

  As described above, when a signal indicating that the link destination designation code is selected is detected, if the connection to the link destination advertisement management server is established and the connection to the advertisement management server is established, the advertisement data is downloaded. On the other hand, if connection to the advertisement management server is not possible, the initial setting image data is read out. And since the downloaded advertisement data or initial setting image data is output as an image or a sound, it becomes possible for a viewer to view advertisement contents. As a result, the content provider can obtain advertising fee revenue. As a result, the cost burden on the viewer can be reduced, and the electronic distribution market can be activated. In addition, since the encrypted content data is decrypted using the decrypted data associated with the encrypted content data on a one-to-one basis, the encrypted content data does not correspond to the decrypted data on a one-to-one basis. Is not decrypted. In addition, the encrypted content data is not decrypted with the decrypted data that does not correspond one-to-one with the encrypted content data. Therefore, by combining encrypted content data and a program as a data player that outputs the content data as an image or sound, it is possible to separate the two and play the content data on another data player It becomes impossible. Also, it becomes impossible to decrypt and reproduce other encrypted content data with the separated data player. As a result, security can be ensured. Then, by combining the content data and the data player to form an executable file, the user can download the executable file and output the content data as an image or sound. That is, a special data player for outputting the content data as an image or sound is not necessary. As a result, inconveniences in the streaming method can be eliminated, and the content can be easily distributed, which can contribute to the development of the electronic distribution market.

  (2) The data reproduction program according to the present invention further includes a process of determining whether the advertisement data or the initial setting image data is output as an image or sound, and as a result of the determination, the advertisement data or the initial setting Only after the image data is output as an image or sound, the content data is output as an image or sound.

  As described above, the content data is output as an image or sound only after the advertisement data or the initial setting image data is output as an image or sound. Therefore, when the viewer tries to view the content data, the advertisement data is always output. Alternatively, the initial setting image data is viewed. Thereby, the advertising effect can be enhanced.

  (3) Further, the data reproduction program according to the present invention is based on a process of reading data relating to the use permission of the content data combined with the encrypted content data and the read data relating to the use permission. And determining whether or not output of the content data as an image or sound is permitted. If the result of the determination indicates that output of the content data as an image or sound is permitted, the process is performed. The process is continued, and if not permitted, the process is stopped.

  As described above, since the data related to the use permission of the content data is combined with the encrypted content data, it is possible to securely execute the license agreement between the person who distributes the content data and the user. Become. That is, it is determined whether output of content data as an image or sound is permitted based on data relating to the license, and if the result of the determination is that output of content data as an image or sound is permitted Since the processing is continued and the processing is stopped when it is not permitted, it is possible to output the content data as an image or sound only to a user who is permitted to use. Note that the determination process can be performed using data relating to the license and authentication data input from outside the program. For example, it can be performed by inputting authentication data in a computer executing the program. In addition, a so-called soft battery (partio soft battery: trademark registration No. 4712562) is adopted, and the program as a soft battery manager has authentication data, which is collated with the data related to the above-mentioned license, and the period is limited. Or function restriction may be performed.

  (4) Further, the data reproduction program according to the present invention further includes a process for determining whether or not each of the data has been tampered with, and continues the process when all the data has not been tampered with as a result of the determination. 3. The data reproduction program according to claim 1, wherein when any one of the data is falsified, the processing is stopped.

  In this way, since it is determined whether or not each data has been tampered with, it is possible to prevent unauthorized use and unauthorized copying of data.

  (5) The data reproduction program according to the present invention includes a process of recording history information indicating a history of outputting the content data as an image or sound, a process of sending the history information and a user ID to a management server, Is further included.

  As described above, since the history information is recorded and sent to the management server, it is possible to grasp on the server side which content has been seen and how much. As a result, more effective data supply to content providers and advertisers becomes possible, and the value as an advertising tool can be increased. Further, since the history information and the user ID are sent to the management server, for example, points or miles having economic value as rewards for viewing the content are given to the user based on the information, and the user It is possible to realize a service that uses this. As a result, the content viewing motivation can be motivated by elements not related to the user's preference for the content, and the advertising value can be further increased. The history information indicates information regarding the number of times content data has been reproduced, whether the content data has been viewed completely, whether only a portion has been viewed, or to what extent the content data has been viewed. Further, the management server may be the same as the advertisement management server or may be a different server.

  (6) Further, a program for creating a data reproduction program according to the present invention has a one-to-one correspondence with a process for inputting content data, a process for encrypting the input content data, and the encrypted content data. A process for creating associated decrypted data, a process for inputting initial setting image data and a link destination code, and a program as a data player for outputting the content data and the initial setting image data as an image or sound are read. 6. The process according to claim 1, wherein the encrypted content data, the decrypted data, the initial setting image data, the link destination code, and the program as the data player are combined. A series of processes including creating a data playback program Computer is characterized in that is configured as instructions that may be executed.

  In this way, since the encrypted content data, decrypted data, initial setting image data, link destination code, and program as the data player are combined, the encrypted content data and the content data as an image or sound It is impossible to separate the program as the data player to be output and reproduce the content data with another data player. Also, it becomes impossible to decrypt and reproduce other encrypted content data with the separated data player. As a result, security can be ensured. Then, by combining the content data and the data player to form an executable file, the user can download the executable file and output the content data as an image or sound. That is, a special data player for outputting the content data as an image or sound is not necessary. As a result, inconveniences in the streaming method can be eliminated, and the content can be easily distributed, which can contribute to the development of the electronic distribution market.

  (7) Further, the information recording medium of the present invention is characterized in that the data reproduction program described above and / or a program for creating the data reproduction program is recorded.

  As a result, when a signal for selecting the link destination designation code is detected, the link is made to the advertisement management server at the link destination, and if the connection to the advertisement management server is established, the advertisement data is downloaded. On the other hand, if connection to the advertisement management server is not possible, the initial setting image data is read out. And since the downloaded advertisement data or initial setting image data is output as an image or a sound, it becomes possible for a viewer to view advertisement contents. As a result, the content provider can obtain advertising fee revenue. As a result, the cost burden on the viewer can be reduced, and the electronic distribution market can be activated. In addition, since the encrypted content data is decrypted using the decrypted data associated with the encrypted content data on a one-to-one basis, the encrypted content data does not correspond to the decrypted data on a one-to-one basis. Is not decrypted. In addition, the encrypted content data is not decrypted with the decrypted data that does not correspond one-to-one with the encrypted content data. Therefore, by combining encrypted content data and a program as a data player that outputs the content data as an image or sound, it is possible to separate the two and play the content data on another data player It becomes impossible. Also, it becomes impossible to decrypt and reproduce other encrypted content data with the separated data player. As a result, security can be ensured. Then, by combining the content data and the data player to form an executable file, the user can download the executable file and output the content data as an image or sound. That is, a special data player for outputting the content data as an image or sound is not necessary. As a result, inconveniences in the streaming method can be eliminated, and the content can be easily distributed, which can contribute to the development of the electronic distribution market.

  According to the data reproduction program of the present invention, when a signal indicating the selection of the link destination designation code is detected, the advertisement data is connected to the link destination advertisement management server. to download. On the other hand, if connection to the advertisement management server is not possible, the initial setting image data is read out. And since the downloaded advertisement data or initial setting image data is output as an image or a sound, it becomes possible for a viewer to view advertisement contents. As a result, the content provider can obtain advertising fee revenue. As a result, the cost burden on the viewer can be reduced, and the electronic distribution market can be activated. In addition, since the encrypted content data is decrypted using the decrypted data associated with the encrypted content data on a one-to-one basis, the encrypted content data does not correspond to the decrypted data on a one-to-one basis. Is not decrypted. In addition, the encrypted content data is not decrypted with the decrypted data that does not correspond one-to-one with the encrypted content data. Therefore, by combining encrypted content data and a program as a data player that outputs the content data as an image or sound, it is possible to separate the two and play the content data on another data player It becomes impossible. Also, it becomes impossible to decrypt and reproduce other encrypted content data with the separated data player. As a result, security can be ensured. Then, by combining the content data and the data player to form an executable file, the user can download the executable file and output the content data as an image or sound. That is, a special data player for outputting the content data as an image or sound is not necessary. As a result, inconveniences in the streaming method can be eliminated, and the content can be easily distributed, which can contribute to the development of the electronic distribution market.

  Further, according to the data reproduction program of the present invention, the content data is output as an image or sound only after the advertisement data or the initial setting image data is output as an image or sound, so that the viewer wants to view the content data. In such a case, the advertisement data or the initial setting image data is always viewed. Thereby, the advertising effect can be enhanced.

  Further, according to the data reproduction program of the present invention, since the data relating to the use permission of the content data is combined with the encrypted content data, a license agreement is made between the person who distributes the content data and the user. It will be possible to implement it reliably. That is, it is determined whether output of content data as an image or sound is permitted based on data relating to the license, and if the result of the determination is that output of content data as an image or sound is permitted Since the processing is continued and the processing is stopped when it is not permitted, it is possible to output the content data as an image or sound only to a user who is permitted to use. Note that the determination process can be performed using data relating to the license and authentication data input from outside the program. For example, it can be performed by inputting authentication data in a computer executing the program. In addition, a so-called soft battery method may be adopted, and a program as a soft battery manager may have authentication data and collate with the data relating to the above-mentioned license to perform period restriction or function restriction.

  Further, according to the data reproduction program of the present invention, since it is determined whether or not each data has been tampered with, it is possible to prevent unauthorized use and unauthorized copying of data.

  Also, according to the data reproduction program of the present invention, history information is recorded and sent to the management server, so that it is possible to grasp on the server side which content has been viewed and how much. As a result, more effective data supply to content providers and advertisers becomes possible, and the value as an advertising tool can be increased. Further, since the history information and the user ID are sent to the management server, for example, points or miles having economic value as rewards for viewing the content are given to the user based on the information, and the user It is possible to realize a service that uses this. As a result, the content viewing motivation can be motivated by elements not related to the user's preference for the content, and the advertising value can be further increased.

  Further, according to the program for creating the data reproduction program of the present invention, since the encrypted content data, decrypted data, initial setting image data, link destination code, and data player program are combined, it is encrypted. It is impossible to separate the content data from the program as a data player that outputs the content data as an image or sound, and to reproduce the content data with another data player. Also, it becomes impossible to decrypt and reproduce other encrypted content data with the separated data player. As a result, security can be ensured. Then, by combining the content data and the data player to form an executable file, the user can download the executable file and output the content data as an image or sound. That is, a special data player for outputting the content data as an image or sound is not necessary. As a result, inconveniences in the streaming method can be eliminated, and the content can be easily distributed, which can contribute to the development of the electronic distribution market.

  Further, according to the information recording medium of the present invention, when a signal indicating that a link destination designation code is selected is detected, if a connection is made to the advertisement management server at the link destination and the advertisement management server is connected, Download the data. On the other hand, if connection to the advertisement management server is not possible, the initial setting image data is read out. And since the downloaded advertisement data or initial setting image data is output as an image or a sound, it becomes possible for a viewer to view advertisement contents. As a result, the content provider can obtain advertising fee revenue. As a result, the cost burden on the viewer can be reduced, and the electronic distribution market can be activated. In addition, since the encrypted content data is decrypted using the decrypted data associated with the encrypted content data on a one-to-one basis, the encrypted content data does not correspond to the decrypted data on a one-to-one basis. Is not decrypted. In addition, the encrypted content data is not decrypted with the decrypted data that does not correspond one-to-one with the encrypted content data. Therefore, by combining encrypted content data and a program as a data player that outputs the content data as an image or sound, it is possible to separate the two and play the content data on another data player It becomes impossible. Also, it becomes impossible to decrypt and reproduce other encrypted content data with the separated data player. As a result, security can be ensured. Then, by combining the content data and the data player to form an executable file, the user can download the executable file and output the content data as an image or sound. That is, a special data player for outputting the content data as an image or sound is not necessary. As a result, inconveniences in the streaming method can be eliminated, and the content can be easily distributed, which can contribute to the development of the electronic distribution market.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating a concept of a data structure according to the first embodiment. The data file 1 is content data composed of image data composed of still images / moving images and audio data. In the first embodiment, the data file 1 is encrypted. Then, the decrypted data 2b corresponding one-to-one with the encrypted data file 2a is generated. Next, the data player 3 that outputs the data file 1 as an image or sound, the encrypted data file 2a, and the decrypted data 2b are combined to create an executable file F. At this time, the content code 2c for specifying the execution format file F is embedded. Further, the link destination designation code 4a indicating the link destination of the advertisement data managed by the advertisement management server S and initial setting image data including specific advertisement data are also combined with the data player 3. Thus, since the data file 1 is encrypted and combined with the data player 3 as the encrypted data file 2a, the data in the data file 1 should be output as an image or sound even if they are separated. I can't. Thereby, security is ensured.

  The link destination designation code 4a has a function of downloading and displaying a file on the advertisement management server S, such as a WEB browser used on the Internet, and a downloadable one is text, video, program, etc., as in the WEB browser. When a user clicks on a downloadable display, the standard browser is activated and has a function of being directed to a link destination or a form-type function for requesting data. . The place where the link destination can be displayed is a part of the data player 3 or a place away from the place, and an arbitrary halfway designated before and after the content data reproduction. In particular, when the content data is not played back, the content cannot be viewed unless the advertisement data is viewed, which can contribute to the improvement of the advertisement effect. In the case of the form type, only a part of the data player 3 or a distant place is a place where the link destination can be displayed.

  When content data (data file) is played back when not connected to the Internet, an “initial setting image” as an advertisement embedded first in the data player 3 is displayed.

  In addition to the above, the link destination designation code 4a has a link destination management function. The link destination display function connects to the link destination advertisement management server S, and manages the number of clicks, content code, execution history such as purchase at the link destination (affiliate: function of success-reward-type advertisement). As a result, the advertiser can pay the advertising fee to the content provider due to the advertising effect, so that the advertising cost can be matched to the value of the content.

  Next, the operation of the program that creates the executable file F will be described. As shown in FIG. 2, first, an execution file for creating an execution format file F is activated. Then, content data including moving image data, still image data, initial setting image data, audio data, and the like, a content code, and a link designation code are input (step S1). At this time, there may be a case where data relating to copyrights such as the creator of the content data and the title of the content, a URL (Uniform Resource Locator) of the home page of the creator of the content data, and the like may be input.

  Next, these input data are encrypted based on a specific algorithm (step S2). At this time, the encrypted data and the decrypted data corresponding one-to-one are generated simultaneously. Next, falsification check data is calculated (step S3). Each of these data, that is, an engine (program as a data player), encrypted content data, initial setting image data, link destination designation code and content code, Falsification check data and the like are combined (step S4). Finally, it is written out as a single executable file (step S5), and the process is terminated.

  In this way, video data, still image data, initial setting image data, link destination designation code, audio data, and content code, decrypted data, and a program as a data player are combined and encrypted as content data. It is impossible to separate the content data and the program as a data player that outputs the content data as an image or sound, and to reproduce the content data with another data player. Also, it becomes impossible to decrypt and reproduce other encrypted content data with the separated data player. As a result, security can be ensured.

  Next, a description will be given of the operation of a program in which a user obtains an executable file created as described above by downloading or the like and reproduces data. As shown in FIG. 3, first, the executable file is activated. Next, it is checked whether or not the execution file has been falsified (steps T1 and T2). If the executable file has been falsified, the process is terminated, and if it has not been falsified, a communication check routine is executed (step T3). Then, it is determined whether or not communication is possible (step T4). If communication is possible, connection is made to the linked advertisement management server, advertisement data is downloaded, and the advertisement data is displayed (step T5). On the other hand, if communication is not possible in step T4, the initial setting image data is read and, for example, an initial setting image as advertisement data is displayed (step T6). After the advertisement data has been reproduced, a reproduction permission check routine is executed (step T7).

  As a result of execution of the playback permission check routine, it is determined whether or not playback is possible (step T8). If playback is not possible, the process ends. If playback is possible, video data or still image as content data is terminated. Data and audio data are read and initial setting is performed (step T9). Next, a moving image reproduction screen is displayed (step T10), and part (or all) of the content data is read into the buffer (step T11). Next, the read data is decrypted using the decrypted data corresponding to the data on a one-to-one basis (step T12). Then, the data is output (reproduced) as an image or sound in a reproduction engine, that is, a data player (step T13). It is determined whether the content data is finished or the reproduction is finished (step T14). If the content data is not finished or the reproduction is not finished, the process proceeds to step T10. On the other hand, when the content data is finished or the reproduction is finished, the execution is finished.

  As described above, the content data is output as an image or sound only after the advertisement data or the initial setting image data is output as an image or sound. Therefore, when the viewer tries to view the content data, the advertisement data is always output. Alternatively, the initial setting image data is viewed. Thereby, the advertising effect can be enhanced.

  In addition, since the encrypted content data is decrypted using the decrypted data associated with the encrypted content data on a one-to-one basis, the encrypted content data does not correspond to the decrypted data on a one-to-one basis. Is not decrypted. In addition, the encrypted content data is not decrypted with the decrypted data that does not correspond one-to-one with the encrypted content data. Therefore, by combining encrypted content data and a program as a data player that outputs the content data as an image or sound, it is possible to separate the two and play the content data on another data player It becomes impossible. Also, it becomes impossible to decrypt and reproduce other encrypted content data with the separated data player. As a result, security can be ensured.

  The operation management of the executable file F may be performed by, for example, a unique manager as a program. The unique manager is stored so that it can be executed on the computer in which the executable file F is recorded, or is operated by a control signal from the outside of the system where the executable file F is executed, for example, from the outside. To do. Then, the unique manager manages the usage period, usage time, or usage count for the execution format file F, and charges the user. Further, the operation management of the execution format file F may be performed by referring to the information of the “soft battery (partio soft battery: trademark registration No. 4712562)” by the “soft battery manager” as the program. good. The soft battery is a virtual battery for moving the executable file F. That is, when the execution format file F is used (executed), the virtual energy in the soft battery decreases, and when the virtual energy of the soft battery disappears, the execution format file F cannot be used (executed). By additionally purchasing a soft battery or charging virtual energy of the soft battery, the executable file F can be used (executed) again.

  FIG. 4 is a diagram illustrating a network configuration according to the first embodiment. Here, an example in which data is transmitted / received via a WAN (Wide Area Network) is shown. (1) A content holder or affiliator having content data composed of still images / moving images, audio data, and the like registers a content ID in the link destination management server. (2) Further, the advertiser site registers advertisement data to the link destination. (3) Next, the content holder or affiliator uploads the content data to the content download site. (4) Next, the user downloads content data from the content download site. (5) Since the link destination designation code is embedded in the data player including the content data, when the user clicks on the data player, the data player is connected to the link destination management server. (6) The link destination management server records the content ID in the link destination (advertisement data) and connects (jumps) to the advertiser site. (7) The advertiser site transmits operation history information to the link destination management server. Thereby, the advertising fee income is given to the content holder or the affiliate specified by the content ID via the link destination management server. That is, since the advertisement fee corresponding to the value of the content is given to the content holder or the affiliate, the cost burden on the user is reduced.

  FIG. 5 is a diagram illustrating a network configuration according to the second embodiment. Each component transmits and receives data via a WAN (Wide Area Network). (1) The content holder or affiliator registers the content ID in the link destination management server. (2) Further, the advertiser site registers advertisement data to the link destination. (3) Next, the content holder or affiliator distributes the content using external media. (4) Next, the user acquires the content data with an external medium. Since the link destination designation code is embedded in the data player including the content data, when the user clicks on the data player, the data player is connected to the link destination management server. (5) The link destination management server records the content ID in the link destination (advertisement data) and connects (jumps) to the advertiser site. (6) The advertiser site transmits operation history information to the link destination management server. Thereby, the advertising fee income is given to the content holder or the affiliate specified by the content ID via the link destination management server. That is, since the advertisement fee corresponding to the value of the content is given to the content holder or the affiliate, the cost burden on the user is reduced.

  FIG. 6 is a diagram illustrating a network configuration according to the third embodiment. Each component transmits and receives data via a WAN (Wide Area Network). (1) User B acquires content by copying content from user A. (2) Since the link destination designation code is embedded in the data player including the content data, when the user clicks on the data player, the data player is connected to the link destination management server. (3) The link destination management server records the content ID in the link destination (advertisement data) and connects (jumps) to the advertiser site. (4) The advertiser site transmits operation history information to the link destination management server. Thereby, the advertising fee income is given to the content holder or the affiliate specified by the content ID via the link destination management server. That is, since the advertisement fee corresponding to the value of the content is given to the content holder or the affiliate, the cost burden on the user is reduced.

  As an additional function for the data player 3, a process of recording history information indicating a history of outputting content data as an image or sound, and a process of sending the history information and the user ID to a management server are further included. It may be included. As described above, since the history information is recorded and sent to the management server, it is possible to grasp on the server side which content has been seen and how much. As a result, more effective data supply to content providers and advertisers becomes possible, and the value as an advertising tool can be increased. In addition, by sending history information and a user ID to the management server, for example, points and miles having economic value as rewards for viewing the content are given to the user based on the information, It becomes possible for a user to realize a service using this. As a result, the content viewing motivation can be motivated by elements not related to the user's preference for the content, and the advertising value can be further increased. The history information indicates information regarding the number of times content data has been reproduced, whether the content data has been viewed completely, whether only a portion has been viewed, or to what extent the content data has been viewed. Further, the management server may be the same as the advertisement management server or may be a different server.

  The program described above can be obtained in a state where it is recorded on an information recording medium such as a CD-ROM or DVD. In addition, such a program is transmitted by a computer as a transmission device via a transmission medium such as a communication network including a public telephone line, a dedicated telephone line, a cable TV line, a wireless communication line and the like that constitute a network. It can also be obtained by receiving the received signal. This signal is a computer data signal embodied in a predetermined carrier wave including a program. At the time of this transmission, it is only necessary to transmit at least a part of the program in the transmission medium. That is, it is not necessary for all data constituting the program to exist on the transmission medium at a time. Further, the transmission method for transmitting a program from the computer includes a case where data constituting the program is transmitted continuously and a case where it is transmitted intermittently.

It is a figure which shows the concept of the data structure which concerns on Example 1. FIG. FIG. 4 is a diagram illustrating a concept of an operation of a program that creates an execution format file F. An operation of a program for reproducing data will be described. 1 is a diagram illustrating a network configuration according to a first embodiment. FIG. 6 is a diagram illustrating a network configuration according to a second embodiment. FIG. 10 is a diagram illustrating a network configuration according to a third embodiment.

Explanation of symbols

1 Data file 2a Encrypted data file 2b Decrypted data 2c Content code 3 Data player 4a Link destination designation code F Execution format file S Advertisement management server

Claims (7)

A process of detecting a signal to select a link destination designation code;
A process of reading a link designation code when the signal is detected;
Based on the read link destination designation code, a process of connecting to a link destination advertisement management server;
When it is possible to connect to the advertisement management server, the advertisement data is downloaded from the advertisement management server. On the other hand, when it is not possible to connect to the advertisement management server, a process of reading initial setting image data;
Processing for outputting the downloaded advertisement data or initial setting image data as an image or sound;
A process of reading the encrypted content data;
A process of decrypting the encrypted content data using decrypted data associated with the encrypted content data on a one-to-one basis;
A data reproduction program comprising a series of processes including a process of outputting the content data as an image or sound as a group of instructions that can be executed by a computer. A process of determining whether the advertisement data or the initial setting image data is output as an image or sound;
2. The data reproduction program according to claim 1, wherein, as a result of the determination, the content data is output as an image or sound only after the advertisement data or the initial setting image data is output as an image or sound. A process of reading data relating to a license for use of the content data combined with the encrypted content data;
Determining whether output of the content data as an image or sound is permitted based on the read data relating to the license,
3. The processing is continued if the result of the determination is that output of the content data as an image or sound is permitted, and the processing is stopped if not permitted. Data playback program.   The process further includes a process for determining whether or not each of the data has been falsified. When all the data has not been falsified as a result of the determination, the process is continued, and any one of the data has been falsified. 4. The data reproduction program according to claim 1, wherein the processing is stopped. A process of recording history information indicating a history of outputting the content data as an image or sound;
The data reproduction program according to any one of claims 1 to 4, further comprising a process of sending the history information and the user ID to a management server. Processing to input content data;
A process of encrypting the input content data;
A process of creating decrypted data associated one-to-one with the encrypted content data;
A process of inputting initial setting image data and a link destination code;
A process of reading out the content data, a program as a data player that outputs the initial setting image data as an image or sound,
6. The data reproduction program according to claim 1, wherein the encrypted content data, the decrypted data, the initial setting image data, the link destination code, and the program as the data player are combined. A program for creating a data reproduction program, characterized in that a series of processes including:   An information recording medium on which a data reproduction program according to any one of claims 1 to 5 and / or a program for creating the data reproduction program according to claim 6 is recorded.

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