JP4720195B2 - Content access control terminal, content access control program, and content access control method - Google Patents

Description

  The present invention relates to a content access control terminal, a content access control program, and a content access control method, and in particular, controls whether to receive streaming content, store received streaming content, and allow access to stored streaming content. The present invention relates to a content access control terminal, a content access control program, and a content access control method in which an OS (Operating System) determines.

  As an example of an access control method for content distributed by terrestrial digital broadcasting or BS (broadcast satellite) digital broadcasting, a special signal is added to the content (program) distributed by terrestrial digital broadcasting or BS digital broadcasting, There is a “copy control (copy once)” that records a program only once and prohibits copying.

  Patent Document 1 describes an example of a method for preventing the creation of secondary generation data of content distributed by streaming. When it is determined that the operation of the operator is permitted, the method described in Patent Document 1 decrypts the encrypted content distributed by streaming.

  Further, in Patent Document 2, when content data and information that enables trial use of content data are received from a server or the like, and regular use of the content data is desired, the content data can be normally used from the server or the like. A method for receiving information is described.

JP-A-9-269916 (paragraphs 0017 to 0032, FIG. 1) JP 2004-220357 A (paragraphs 0008 to 0032, FIG. 1)

  However, the methods described in Patent Document 1 and Patent Document 2 have a problem in that usage rights such as reproduction and storage cannot be set for secondary generation data generated from received content.

  Therefore, the present invention can set the usage right such as reproduction and storage to the streaming content and the secondary generation data generated from the streaming content, and can control the usage of the secondary generation data generated from the streaming content and the streaming content. It is an object to provide a content access control terminal, a content access control program, and a content access control method.

  The content access control terminal according to the present invention stores a storage unit that stores usage right information including information indicating whether or not there is a right to receive content, and stores content according to the usage right information stored in the storage unit. OS basic function execution including system call function execution means including determination means for determining whether or not to receive, and system call function execution means for receiving content via a communication network when the determination means determines to receive content Means are provided.

  The content access control terminal according to the present invention includes a storage unit that stores usage right information including information indicating whether or not there is a right to store content received via a communication network as secondary generation data, and the storage unit stores And determining means for determining whether or not to store the content as secondary generation data in the storage means, and determining that the determination means stores the content as secondary generation data in accordance with the usage right information Then, the system call function executing means for inputting the content into the storage application program for storing the content in the storage means, and OS basic function executing means including the system call function executing means are provided.

  When the system call function execution unit receives the content, the determination unit determines whether to receive the content according to a combination of information indicating the storage application program that stores the content in the storage unit and information indicating the transmission source of the content. You may judge.

  The content access control terminal according to the present invention includes secondary generation data generated from content received via a communication network, and usage right information including information indicating whether or not there is a right to reproduce the secondary generation data. A storage unit for storing, a determination unit for determining whether or not to reproduce the secondary generation data according to the usage right information stored in the storage unit, and a determination unit that determines to reproduce the secondary generation data And a system call function executing means for inputting the secondary generated data to the reproduction application program for reproducing the secondary generated data, and further comprising OS basic function executing means including the system call function executing means.

  The determining means may determine whether or not to reproduce the secondary generation data according to a combination of information indicating the reproduction application program and information indicating the secondary generation data.

  If the determination means determines that the content is not received, the system call function execution means may input the fact to the storage application program, and the storage application program may notify the user to that effect, and the system call function execution means If the determination means determines that the content is not stored in the storage means as secondary generation data, it inputs that fact to the storage application program, and the storage application program may notify the user to that effect, and the system call If the determination means determines that the secondary generation data is not reproduced, the function execution means may input the fact to the reproduction application program, and the reproduction application program may notify the user to that effect. According to such a configuration, if the usage right information performs an operation that does not indicate the presence of the right, the user can be notified of this.

  Usage right information conversion means for converting the usage right information into access control information that can be determined by the determination means may be included, and right management means for inputting the usage right information may be included.

  Rights management means for inputting access control information may be included, and the judging means may store the access control information in the storage means.

  The usage right information converting means may convert it into access control information when new usage right information is inputted, and the determining means stores the storage means based on the access control information converted by the usage right information converting means. The access control information being updated may be updated, added or deleted. According to such a configuration, when the usage right information is newly input, the access control information can be updated, added, or deleted.

  The usage right information may include information indicating one or more of a condition for receiving content, a condition for storing the received content as secondary generation data, and a condition for reproducing secondary generation data. When the means determines that the condition included in the usage right information is no longer satisfied, the means may update or delete the corresponding access control information. According to such a configuration, it is possible to update or delete access control information that no longer satisfies the condition.

  The rights management means updates the conditions included in the usage right information and the access control information corresponding to the usage right information according to the reception of the content, the storage of the received content as the secondary generation data, or the reproduction of the secondary generation data. May be. According to such a configuration, the conditions included in the usage right information and the access control information can be updated in accordance with the reception of the content.

  The usage right information converting means may generate a table associating information indicating the content transmission source with information indicating the storage application program or the reproduction application program based on the plurality of usage right information.

  The content access control program according to the present invention receives content according to the usage right information stored in the storage means for storing the usage right information including information indicating whether or not the computer has the right to receive the content. If it is determined that the content is received by the determination process, the system call function execution process for receiving the content via the communication network is executed, and the OS basic function execution including the system call function execution process is executed. Processing is executed.

  The content access control program according to the present invention is stored in a storage means for storing usage right information including information indicating whether or not the computer has a right to store content received via a communication network as secondary generation data. And determining whether to store the content as secondary generation data in the storage unit according to the right-of-use information, and determining whether to store the content as secondary generation data in the storage unit The system call function execution process for inputting the content to the storage application program for storing the content in the storage means is executed, and the OS basic function execution process including the system call function execution process is executed.

  In the determination process, whether or not the content is received according to the combination of the information indicating the storage application program that stores the content in the storage unit when the content is received in the system call function execution process and the information indicating the transmission source of the content. You may make it judge.

  A content access control program according to the present invention is a usage right including a secondary generation data generated from content received via a communication network and information indicating whether or not the computer has a right to reproduce the secondary generation data. In accordance with the right-of-use information stored in the storage means for storing information, a determination process for determining whether or not to reproduce the secondary generation data, and a determination process that determines to reproduce the secondary generation data, A system call function execution process for inputting secondary generation data to a reproduction application program for reproducing secondary generation data is executed, and an OS basic function execution process including the system call function execution process is executed.

  In the determination process, it may be determined whether or not to reproduce the secondary generation data according to a combination of information indicating the reproduction application program and information indicating the secondary generation data.

  In the system call function execution process, if it is determined that the content is not received in the determination process, the storage application program may input that fact and the storage application program may notify the user to that effect. In the determination process, if it is determined that the content is not stored in the storage means as secondary generation data, the storage application program may input the fact to that effect, and the storage application program may notify the user to that effect. In the function execution process, if it is determined that the secondary generation data is not to be reproduced in the determination process, the reproduction application program may input the fact to that effect, and the reproduction application program may notify the user accordingly. According to such a configuration, if the usage right information performs an operation that does not indicate the presence of the right, the user can be notified of this.

  Usage right information conversion processing for converting the usage right information into access control information that can be determined by the determination processing may be executed, or right management processing for inputting the usage right information may be executed.

  The right management process for inputting the access control information may be executed, and the access control information may be stored in the storage means in the determination process.

  When new usage right information is input in the usage right information conversion process, it may be converted into access control information. In the determination process, the storage means stores the access control information based on the access control information converted by the usage right information conversion process. The access control information being updated may be updated, added, or deleted. According to such a configuration, when the usage right information is newly input, the access control information can be updated, added, or deleted.

  The usage right information may include information indicating one or more of a condition for receiving content, a condition for storing the received content as secondary generation data, and a condition for reproducing secondary generation data. If it is determined in the process that the conditions included in the usage right information are not satisfied, the corresponding access control information may be updated or deleted. According to such a configuration, it is possible to update or delete access control information that no longer satisfies the condition.

  In the rights management process, the usage rights information and the conditions included in the access control information corresponding to the usage rights information are updated according to the reception of the content, the storage of the received content as secondary generation data, or the playback of the secondary generation data. You may let them. According to such a configuration, the conditions included in the usage right information and the access control information can be updated in accordance with the reception of the content.

  In the usage right information conversion process, a table associating information indicating the content transmission source with information indicating the storage application program or the reproduction application program may be generated based on the plurality of usage right information.

In the content access control method according to the present invention, the OS operation means operating according to the OS stores the usage right information including information indicating whether or not the right to receive the content is stored in the usage right information stored in the storage right information. Accordingly, it is determined whether or not to receive the content, and when it is determined that the content is received, the content is received via the communication network.

The content access control method according to the present invention stores usage right information including information indicating whether or not the OS operating means operating according to the OS has the right to store the content received via the communication network as secondary generation data. Determining whether to store the content as secondary generation data in the storage unit according to the usage right information stored in the storage unit, and determining to store the content as secondary generation data in the storage unit; The content is input to a storage application program that stores the content in a storage unit.

  When content is received in the system call function execution process, it is determined whether to receive content according to a combination of information indicating a storage application program that stores the content in the storage unit and information indicating the content transmission source Good.

In the content access control method according to the present invention, the OS operating means operating according to the OS determines whether the secondary generation data generated from the content received via the communication network and the right to reproduce the secondary generation data are available. If the storage means for storing the usage right information including the information to be displayed determines whether to reproduce the secondary generation data according to the usage right information stored therein, Secondary generation data is input to a reproduction application program for reproducing secondary generation data.

  Whether or not to reproduce the secondary generation data may be determined according to the combination of the information indicating the reproduction application program and the information indicating the secondary generation data.

  If it is determined that the content is not received, that is input to the storage application program, and the storage application program may notify the user to that effect, and if it is determined not to store the content as secondary generation data in the storage means, That is input to the storage application program, and the storage application program may notify the user to that effect. When it is determined that the secondary generation data is not to be reproduced, the storage application program inputs that fact to the reproduction application program, and the reproduction application program May notify the user to that effect. According to such a configuration, if the usage right information performs an operation that does not indicate the presence of the right, the user can be notified of this.

  The usage right information may be converted into access control information that is information that can be determined by the determination means, or the usage right information may be input.

  Access control information may be input, and the access control information may be stored in the storage means.

  When new usage right information is input, it may be converted into access control information, and the access control information stored in the storage means may be updated, added or deleted based on the converted access control information. According to such a configuration, when the usage right information is newly input, the access control information can be updated, added, or deleted.

  The usage right information may include information indicating any one or more of a condition for receiving content, a condition for storing the received content as secondary generation data, and a condition for reproducing secondary generation data. If it is determined that the condition included in the right information is not satisfied, the corresponding access control information may be updated or deleted. According to such a configuration, it is possible to update or delete access control information that no longer satisfies the condition.

  The conditions included in the right-of-use information and the access control information corresponding to the right-of-use information may be updated according to the reception of the content, the storage of the received content as the secondary generation data, or the reproduction of the secondary generation data. According to such a configuration, the conditions included in the usage right information and the access control information can be updated in accordance with the reception of the content.

  A table associating information indicating the content transmission source with information indicating the storage application program or the reproduction application program may be generated based on the plurality of usage right information.

  According to the present invention, it is possible to control the application program to receive and store streaming content and to use secondary generation data generated from the streaming content by the OS without modifying the existing application program. .

Embodiment 1 FIG.
A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration example of the first embodiment of the present invention.

  The first embodiment of the present invention includes a storage application program execution unit 1 that executes a storage application program that stores received streaming content as secondary generation data 5 in storage means (not shown), and an OS such as a system call. OS basic function execution unit (OS basic function execution means) 2 that executes the basic functions of the access control function execution unit 3 that determines whether or not the secondary generation data 5 generated based on the streaming content is accessible, and storage A reproduction application program execution unit 4 for executing a reproduction application program for reproducing the secondary generation data 5 stored in the means is included.

  The OS basic function execution unit 2 includes a system call function execution unit (system call function execution means) 21 that provides the stored application program execution unit 1 with the basic functions of the OS. The basic functions of the OS provided by the system call function execution unit 21 to the storage application program execution unit 1 are, for example, reception of streaming content and storage means for storing the received streaming content as secondary generation data 5 This includes writing and reading of the secondary generation data 5 stored in the storage means to reproduce the secondary generation data 5.

  Note that the system call function execution unit 21 reads the secondary generation data 5 stored in the storage unit in order to reproduce the secondary generation data 5, for example, use start access, use end access, read access, A plurality of types of access such as write access and other operation access are performed on the storage means.

  The access control function execution unit 3 includes a determination unit (determination unit) 31 that determines whether or not the storage unit of the system call function execution unit 21 can access the storage unit, the stored application program execution unit 1 and the reproduction application program execution unit 4 include streaming contents and The right management unit (right management unit) 33 that stores the usage right information, which is information for saving or reproducing the secondary generation data 5, in the storage unit, and the usage right information stored in the storage unit by the right management unit 33. It includes a usage right information conversion unit (use right information conversion means) 32 for converting into access control information that can be determined by the determination unit 31.

  The right management unit 33 receives, for example, from another server or the like connected via a communication network (not shown) or from a storage medium such as a CD-ROM storing usage right information. Usage right information read by a drive or the like or previously input by a user into an input means such as a keyboard is stored in the storage means. Further, the right management unit 33 inputs the usage right information to the usage right information conversion unit 32.

  The usage right information conversion unit 32 converts the usage right information input by the right management unit 33 into access control information that is information that can be determined by the determination unit 31. The access control information is, for example, inode information that is various information such as the file name of the streaming content and the secondary generation data 5, the owner of the file, the size, the access authority, the creation date and time, the pointer to the data area, Source information (address) of streaming content.

  The system call function execution unit 21 has a function of calling the determination unit 31 from the access control function execution unit 3 in order to confirm whether or not access to the storage unit is possible.

  Next, the operation of the first exemplary embodiment of the present invention will be described with reference to the drawings. First, the operation until the storage unit stores the access control information will be described. FIG. 2 is a flowchart for explaining the operation until the storage means stores the access control information.

  The right management unit 33 receives use right information from another server or the like connected via a communication network, or from a storage medium such as a CD-ROM storing the use right information to a CD-ROM drive or the like. The usage right information is read (step S101). The right management unit 33 stores the usage right information in the storage unit.

  Note that the usage right information includes a connection destination address (1) indicating a server or the like of a streaming content transmission source, a storable flag (2) indicating whether or not to permit the streaming content to be stored, and the storage application program execution unit 1 The stored application identifier (3) indicating the stored application program to be executed and the reproduction application identifier (4) indicating the playback application program executed by the playback application program execution unit 4 are all or at least one of them.

  Note that the stored application identifier is, for example, a file name of a stored application program executed by the stored application program execution unit 1. Further, the stored application identifier may be tampering check data (digest value) as the stored application identifier in order to protect the streaming content from tampering.

  The reproduction application identifier is, for example, a file name of a reproduction application program executed by the reproduction application program execution unit 4. Further, the playback application identifier may be tampering check data (digest value) as the playback application identifier in order to protect the streaming content from tampering.

  The right management unit 33 passes the usage right information to the usage right information conversion unit 32. The usage right information conversion unit 32 converts the received usage right information into access control information (step S102), and passes the converted access control information to the determination unit 31. By this conversion processing, the usage right information becomes access control information that can be analyzed by the determination unit 31. That is, the access control information includes all or any one of the above-mentioned information (1) to (4) corresponding to the usage right information.

  In addition, the determination unit 31 stores the access control information received from the usage right information conversion unit 32 in the storage unit in response to an inquiry from the system call function execution unit 21 as to whether access is possible (step S103).

  Then, in the processing from step S101 to step S103, the saved application program execution unit 1 generates a streaming content as the secondary generation data 5 and can store the generated secondary generation data 5 in the storage unit. .

  The right management unit 33 receives access control information from another server or the like connected via a communication network, or a CD-ROM drive from a storage medium such as a CD-ROM storing the access control information. When the access control information is read by the user or the user inputs the access control information to an input means such as a keyboard, the usage right information conversion unit 32 may not perform the conversion process. That is, the usage right information conversion unit 32 may not perform the process of step S102 described above.

  The determination unit 31 may store the access control information in the storage unit, and then add the access control information received from the usage right information conversion unit 32 to the storage unit.

  Note that the usage right information may include a content identifier for identifying the streaming content. Further, the right management unit 33 may delete the use right information stored in the storage unit in accordance with a user operation. Then, the right management unit 33 passes the content identifier included in the deleted usage right information to the determination unit 31 via the control information conversion function 32, and the determination unit 31 transmits the access control information corresponding to the passed content identifier. It may be deleted from the storage means or updated to information indicating that access cannot be permitted.

  The storage means determines whether or not to receive the content according to the usage right information stored in the storage means for storing the usage right information including information indicating whether or not the computer has the right to receive the content. And determining that the content is received by the determination process, executing a system call function execution process for receiving the content via the communication network, and executing an OS basic function execution process including the system call function execution process. A content access control program characterized by the above is stored.

  The storage means stores the usage right information including information indicating whether the computer has the right to store the content received via the communication network as the secondary generation data. In accordance with the right information, the determination process for determining whether to store the content as secondary generation data in the storage unit, and the determination process determines that the content is stored in the storage unit as secondary generation data. A content access control program for storing a system call function execution process for inputting content into a storage application program stored in a storage unit and executing an OS basic function execution process including the system call function execution process is stored. ing.

  Further, the storage means stores secondary generation data generated from the content received via the communication network, and usage right information including information indicating whether or not there is a right to reproduce the secondary generation data. A determination process for determining whether or not to reproduce the secondary generation data according to the usage right information stored in the storage means, and a secondary generation if the determination process determines that the secondary generation data is to be reproduced. A content access control program for executing a system call function execution process for inputting secondary generation data to a reproduction application program for reproducing data, and causing an OS basic function execution process including the system call function execution process to be executed I remember it.

  Next, an operation when the storage application program execution unit 1 stores the streaming content in the storage unit as the secondary generation data 5 will be described. FIG. 3 is a flowchart for explaining the operation when the storage application program execution unit 1 stores the streaming content in the storage means as the secondary generation data 5.

  When the user operates an input means such as a keyboard to input a connection destination address of a streaming content transmission source server or the like and requests reception of the streaming content (step S201), the stored application program execution unit 1 The connection destination address input by the user is input to the system call function execution unit 21 of the OS basic function execution unit 2. Note that the storage unit may store in advance a connection destination address of a server or the like that is a transmission source of streaming content. Then, the saved application program execution unit 1 automatically inputs the connection destination address of the streaming content transmission source server or the like stored in the storage unit to the system call function execution unit 21 or the system call function execution unit 21. Alternatively, the user may select a connection destination address of a server or the like that is a transmission source of the streaming content input to.

  The system call function execution unit 21 inputs the connection destination address input by the stored application program execution unit 1 to the determination unit 31 (step S202).

  The determination unit 31 determines whether or not the storage unit stores access control information including a connection destination address that matches the input connection destination address (step S203).

  If the determination unit 31 determines that the storage unit stores access control information including a connection destination address that matches the input connection destination address, the system call function execution unit displays information indicating permission to receive streaming content. 21. In addition, the determination unit 31 causes the storage unit to store information indicating that the stored application program execution unit 1 receives streaming content.

  When the information indicating permission to receive streaming content is input, the system call function execution unit 21 connects to the server or the like of the connection destination address input by the stored application program execution unit 1 and receives the streaming content (step) S204).

  When the determination unit 31 determines that the storage unit does not store access control information including a connection destination address that matches the input connection destination address, the system call function is executed to indicate that the streaming content reception is not permitted. Input to the unit 21.

  When the information indicating that streaming content reception is not permitted is input, the system call function execution unit 21 inputs information indicating that streaming content reception is not permitted to the storage application program execution unit 1.

  When the information indicating that streaming content reception is not permitted is input, the saved application program execution unit 1 displays a screen indicating that the streaming content cannot be received on a display unit (not shown) (step S1). S205). When the information indicating that the streaming content reception is not permitted is input, the storage application program execution unit 1 notifies the user that the streaming content cannot be received, for example, by generating sound. Also good.

  When the user operates the input means such as a keyboard to input a file name for storing the received streaming content and requests the storage of the streaming content, the storage application program execution unit 1 displays the file name input by the user. Is input to the system call function execution unit 21 of the OS basic function execution unit 2 (step S206). The saved application program execution unit 1 may input the file name transmitted by the server or the like that is the streaming content transmission source to the system call function execution unit 21. Further, the storage application program execution unit 1 may store the file name transmitted by the server or the like that transmitted the streaming content in the storage unit.

  When the file name is input, the system call function execution unit 21 inputs the file name to the determination unit 31 and requests the determination of whether or not the streaming content can be saved. When the determination unit 31 is requested to determine whether the streaming content can be stored, the storage unit stores access control information including a connection destination address that matches a connection destination address of a server or the like connected to receive the streaming content. Read from.

  When the access control information including the connection destination address that matches the connection destination address of the server or the like connected to receive the streaming content is read from the storage unit, the determination unit 31 reads the storable flag included in the access control information. With reference to this, it is determined whether or not the storage of the streaming content is permitted (step S207). Specifically, the determination unit 31 determines that the storage of the streaming content is permitted when the access control information includes a storable flag indicating that the storage of the streaming content is permitted, and the access control information stores the streaming content. If the storable flag indicating that the content is not permitted is included, it is determined that the storage of the streaming content is not permitted.

  If the determination unit 31 determines that the streaming content storage is permitted, the determination unit 31 reads the stored application identifier included in the access control information, and sends the read stored application identifier and information indicating permission to save the streaming content to the system call function execution unit 21. input. Then, the determination unit 31 stores the file name input by the system call function execution unit 21 in the storage unit in association with the access control information.

  When the stored application identifier and information indicating permission to save the streaming content are input, the system call function execution unit 21 inputs the stored application identifier and the received streaming content to the stored application program execution unit 1.

  When the streaming content is input, the storage application program execution unit 1 executes the storage application program indicated by the storage application identifier, and stores the input streaming content in the storage unit as the secondary generation data 5 (step S208). Note that when the input streaming content is encrypted, the storage application program execution unit 1 may decrypt the stored streaming content and store it in the storage unit. Further, when the storage application program execution unit 1 stores the input streaming content in the storage unit as the secondary generation data 5, the storage unit stores the i-node information of the input streaming content in the secondary generation data 5. May be stored in addition to the access control information corresponding to.

  When determining that the storage of streaming content is not permitted, the determination unit 31 inputs information indicating that the storage of streaming content is not permitted to the system call function execution unit 21. When the information indicating that streaming content storage is not permitted is input, the system call function execution unit 21 inputs information indicating that streaming content storage is not permitted to the storage application program execution unit 1.

  When the information indicating that streaming content storage is not permitted is input, the storage application program execution unit 1 causes the display unit to display a screen indicating that the streaming content cannot be stored (step S209). Note that when the information indicating that streaming content storage is not permitted is input, the storage application program execution unit 1 notifies the user that the streaming content cannot be stored, for example, by generating sound. Also good.

  Next, the operation when the reproduction application program execution unit 4 reproduces the secondary generation data 5 will be described. FIG. 4 is a flowchart for explaining the operation when the reproduction application program execution unit 4 reproduces the secondary generation data 5.

  When the user operates the input means such as a keyboard to input the file name of the secondary generation data 5 desired to be reproduced and requests the reproduction of the secondary generation data 5 (step S301), the reproduction application program execution unit 4 inputs the file name of the secondary generation data 5 input by the user to the system call function execution unit 21 of the OS basic function execution unit 2.

  The system call function execution unit 21 inputs the file name of the secondary generation data 5 input by the reproduction application program execution unit 4 to the determination unit 31 (step S302).

  The determination unit 31 determines whether or not the storage unit stores access control information associated with the file name of the input secondary generation data 5 (step S303). The determination unit 31 determines whether the i-node information of the secondary generation data 5 matches the i-node information included in the access control information corresponding to the secondary generation data 5 stored in the storage unit. May be.

  The determination unit 31 determines that the storage unit stores the access control information associated with the input file name of the secondary generation data 5, or stores the i-node information of the secondary generation data 5 and the storage When it is determined that the i-node information included in the access control information corresponding to the secondary generation data 5 stored in the means matches, the information indicating permission to play the streaming content is input to the system call function execution unit 21. .

  When the information indicating permission to play streaming content is input, the system call function execution unit 21 receives a file that matches the file name of the secondary generation data 5 input by the playback application program execution unit 4 (that is, secondary generation). Data 5) and the reproduction application identifier included in the access control information associated with the file name of the secondary generation data 5 input by the reproduction application program execution unit 4 are read from the storage means (step S304).

  The system call function execution unit 21 inputs the secondary generation data 5 and the reproduction application identifier read from the storage unit to the reproduction application program execution unit 4.

  When the secondary generation data 5 and the playback application identifier are input, the playback application program execution unit 4 executes the playback application program indicated by the playback application identifier and plays back the secondary generation data 5 (step S305).

  When the information indicating that streaming content playback is not permitted is input, the system call function execution unit 21 inputs information indicating that streaming content playback is not permitted to the playback application program execution unit 4.

  When the information indicating that the streaming content playback is not permitted is input, the playback application program execution unit 4 causes the display unit to display a screen indicating that the streaming content cannot be played back (step S306). When the information indicating that the streaming content playback is not permitted is input, the playback application program execution unit 4 notifies the user that the streaming content cannot be played back by generating sound or the like. Also good.

  When the storage application program execution unit 1 stores the secondary generation data 5 in the storage unit, or when the reproduction application program execution unit 4 reproduces the secondary generation data, the respective execution units to the system call function 21. Access is started by performing use start access, and access is terminated by performing use end access.

  At this time, the stored application program execution unit 1 and the reproduction application program execution unit 4 confirm whether the determination unit 31 is accessible when accessing the secondary generation data 5. Here, there may be a case where the right to use is lost between the start of access and the end of access. That is, it is possible that access control information is deleted or updated during the processing from step S101 to step S103, and access to the secondary generation data 5 is prohibited.

  If the stored application program execution unit 1 or the reproduction application program execution unit 4 tries to access the secondary generation data 5 after the access to the secondary generation data 5 is prohibited, the determination unit 31 indicates that the access cannot be made. The information to be shown is input to the storage application program execution unit 1 or the reproduction application program execution unit 4, and the storage application program execution unit 1 or the reproduction application program execution unit 4 executes the process of step S209 or step S306.

  It should be noted that the determination unit 31 includes a system call function execution unit so that execution of other application programs and transmission of streaming content to other terminals cannot be performed while the system call function execution unit 21 is receiving streaming content. 21 is controlled. Further, the determination unit 31 cannot execute another application program or transmit the secondary generation data 5 to another terminal while the reproduction application program execution unit 4 is reproducing the secondary generation data 5. It is assumed that the system call function execution unit 21 is controlled.

  As described above, according to this embodiment, the OS (the OS basic function execution unit 2 and the access control function execution unit 3) has a control function that enables or disables reception and storage of streaming content. Therefore, it is possible to control whether or not to save the streaming content even if a storage application program that does not have a control function that enables or disables the storage of the streaming content is installed.

  Further, since the OS (OS basic function execution unit 2 and access control function execution unit 3) has a control function that enables or disables the reproduction of the secondary generation data 5 stored in the storage unit, the streaming content is reproduced. Even if a playback application program that does not have a control function that enables or disables the streaming content is installed, it is possible to control whether or not to play the streaming content.

  Furthermore, according to this embodiment, since the usage right information conversion unit 32 is provided, the determination unit 31 can use the usage right information of the streaming content as access control information.

Embodiment 2. FIG.
A second embodiment of the present invention will be described. Since the configuration of the second embodiment of the present invention is the same as that of the first embodiment, the same reference numerals as those in FIG.

  The right-of-use information in the second embodiment of the present invention is streamed by the system call function execution unit 21 to the connection destination address, the storable flag, the stored application identifier, and the playback application identifier in the first embodiment. Information indicating conditions under which content can be received is added.

  Specifically, the conditions for receiving streaming content are, for example, a condition that reception is possible until a certain usage time is reached, a condition that reception is possible until a certain time limit, and reception is possible up to a certain number of times. A condition that it can be received only at a certain place, a condition that it can be received only on a certain day of the week (for example, it is possible to receive only on every Sunday), a condition that it can be received only in a certain time zone (for example, 9:00 every day) From 10:00 to 10:00).

  In addition, the determination unit 31 according to the second embodiment of the present invention allows the system call function execution unit 21 to perform streaming based on the condition that the system call function execution unit 21 included in the access control information can receive the streaming content. It is determined whether or not content is received.

  Further, when the system call function execution unit 21 starts and ends access to the server or the like indicated by the connection destination address, the system call function execution unit 21 transmits information indicating the start of use and the end of use via the determination unit 31 and the usage right information conversion unit 32. The right management unit 33.

  Next, the operation of the second exemplary embodiment of the present invention will be described. Since the operation until the storage unit stores the access control information is the same as the operation in the first embodiment, the description thereof is omitted. The access control information includes information indicating conditions under which the system call function execution unit 21 can receive streaming content corresponding to the usage right information.

  The operation when the stored application program execution unit 1 in the second embodiment of the present invention stores the streaming content in the storage means as the secondary generation data 5 will be described as different from the first embodiment.

  In step S203, the determination unit 31 according to the first embodiment performs a process of determining whether or not the storage unit stores access control information including a connection destination address that matches the input connection destination address. However, in addition to the processing in step S <b> 203, the determination unit 31 of the second embodiment receives a request for receiving streaming content input by the user, and the system call function execution unit 21 indicated by the access control information receives the streaming content. It is determined whether or not a condition that can be received is met.

  A description will be given of the determination as to whether or not the streaming content reception request input by the user matches the condition that the system call function execution unit 21 indicated by the access control information can receive the streaming content.

  For example, when the condition that the system call function execution unit 21 included in the access control information can receive the streaming content is a condition that the streaming can be received until a certain time limit, the determination unit 31 determines that the current date is It is determined whether or not it is within the time limit indicated by the condition.

  If the determination unit 31 determines that the current date and time is within the time limit indicated by the condition, the determination unit 31 performs the processing from step S203 onward in the first embodiment. If the determination unit 31 determines that the current date and time is not within the range of the time limit indicated by the condition, the determination unit 31 inputs information indicating that the streaming content reception is not permitted to the system call function execution unit 21, and the system call function When information indicating that streaming content reception is not permitted is input, the execution unit 21 inputs information indicating that streaming content reception is not permitted to the storage application program execution unit 1, and the storage application program execution unit 1 The process of step S205 is performed.

  For example, when the condition that the system call function execution unit 21 indicated by the access control information can receive the streaming content is a condition that the streaming content can be received up to a certain number of times, the determination unit 31 indicates the condition. It is determined whether the number of times is 1 or more.

  If the determination unit 31 determines that the number of times indicated by the condition is 1 or more, the determination unit 31 performs the processing from step S203 onward in the first embodiment. If the determination unit 31 determines that the number of times indicated by the condition is not 1 or more, the determination unit 31 inputs information indicating that the streaming content reception is not permitted to the system call function execution unit 21, and the system call function execution unit 21 When information indicating that streaming content reception is not permitted is input, information indicating that streaming content reception is not permitted is input to the storage application program execution unit 1, and the storage application program execution unit 1 performs the process of step S205. I do.

  For example, when the condition that the system call function execution unit 21 indicated by the access control information can receive the streaming content is a condition that the streaming can be received only at a certain location, the determination unit 31 determines that the current location is It is determined whether or not the location indicated by the condition.

  Specifically, the determination unit 31 determines, for example, whether or not the current location is a location indicated by the condition depending on whether or not it is connected to the communication network indicated by the condition, or by a GPS (Global Positioning System). A current location is specified using a signal received from a satellite, and it is determined whether or not the current location is a location indicated by the condition.

  If the determination unit 31 determines that the current location is the location indicated by the condition, the determination unit 31 performs the processing from step S203 onward in the first embodiment. If the determination unit 31 determines that the current location is not the location indicated by the condition, the determination unit 31 inputs information indicating that the streaming content reception is not permitted to the system call function execution unit 21, and the system call function execution unit 21 When information indicating that content reception is not permitted is input, information indicating that streaming content reception is not permitted is input to the storage application program execution unit 1, and the storage application program execution unit 1 performs the process of step S205. Do.

  For example, when the condition that the system call function execution unit 21 indicated by the access control information can receive the streaming content is a condition that it can be received only on a certain day of the week, the determination unit 31 determines that the current date is It is determined whether or not the day indicated by the condition.

  If the determination unit 31 determines that the current date is the day of the week indicated by the condition, the determination unit 31 performs the processing from step S203 onward in the first embodiment. If the determination unit 31 determines that the current date is not the day of the week indicated by the condition, the determination unit 31 inputs information indicating that streaming content reception is not permitted to the system call function execution unit 21, and the system call function execution unit 21. When information indicating that streaming content reception is not permitted is input, information indicating that streaming content reception is not permitted is input to the storage application program execution unit 1, and the storage application program execution unit 1 performs step S205. Perform the process.

  For example, when the condition that the system call function execution unit 21 indicated by the access control information can receive the streaming content is a condition that the streaming can be received only in a certain time zone, the determination unit 31 determines that the current time is It is determined whether or not it is a time zone indicated by the condition.

  If the determination unit 31 determines that the current time is the time zone indicated by the condition, the determination unit 31 performs the processing from step S203 onward in the first embodiment. If the determination unit 31 determines that the current time is not the time zone indicated by the condition, the determination unit 31 inputs information indicating that the streaming content reception is not permitted to the system call function execution unit 21, and the system call function execution unit 21, when information indicating that streaming content reception is not permitted is input, the storage application program execution unit 1 inputs information indicating that streaming content reception is not permitted. The process of S205 is performed.

  When the stored application program execution unit 1 makes a use start access to the system call function 21, the system call function execution unit 21 manages information indicating the start of use via the determination unit 31 and the usage right information conversion unit 32. Input to the unit 33.

  Further, when the stored application program execution unit 1 makes a use end access to the system call function 21, the system call function execution unit 21 manages information indicating the use end via the determination unit 31 and the usage right information conversion unit 32. Input to the unit 33.

  The determination unit 31 may input information indicating the start of use and information indicating the end of use to the right management unit 33 without using the use right information conversion unit 32.

  When the access control information includes information indicating a condition that the system call function execution unit 21 can receive streaming content as a condition that the system call function execution unit 21 can receive the streaming content, the right management unit 33 starts using When the information indicating is input, the storage unit stores the time when the information indicating the start of use is input. When the information indicating the end of use is input, the right management unit 33 reads the time when the information indicating the start of use is input from the storage unit and calculates the use time. Then, the calculated use time is subtracted from the use time indicated by the access control information condition, and the use time indicated by the access control information condition is updated.

  When the access control information includes information indicating a condition that the system call function execution unit 21 can receive the streaming content as a condition that the system call function execution unit 21 can receive the streaming content until a certain number of times of use, the right management unit 33 starts using When the information indicating the end of use and the information indicating the end of use are input, 1 is subtracted from the number of uses indicated by the condition of the access control information, and the number of uses indicated by the condition of the access control information is updated.

  The operation when the reproduction application program execution unit 4 according to the second embodiment of the present invention reproduces the secondary generation data 5 is the same as the operation according to the first embodiment, and thus the description thereof is omitted.

  If the determination unit 31 determines that the system call function execution unit 21 included in the access control information does not satisfy the condition for receiving the streaming content, the determination unit 31 deletes the access control information from the storage unit.

  The operation when the determination unit 31 deletes the access control information from the storage means will be described with reference to the drawings. FIG. 5 is a flowchart illustrating an operation when the determination unit 31 deletes the access control information from the storage unit in the second embodiment.

  The determination unit 31 determines, for example, whether or not the system call function execution unit 21 included in the access control information no longer satisfies the condition for receiving streaming content at a timing such as once a day. (Step S401).

  Specifically, for example, when the condition that the system call function execution unit 21 indicated by the access control information can receive the streaming content is a condition that it can be received until a certain usage time, the determination unit 31 It is determined whether the usage time indicated by the condition is 0 or less.

  When determining that the usage time indicated by the condition is 0 or less, the determining unit 31 deletes the access control information including the condition and the usage right information from the storage unit (step S402).

  For example, when the condition that the system call function execution unit 21 indicated by the access control information can receive the streaming content is a condition that reception is possible until a certain time limit, the determination unit 31 determines that the current date and time are It is determined whether or not the time limit indicated by the condition has elapsed.

  If the determination unit 31 determines that the current date and time has already passed the deadline indicated by the condition, the determination unit 31 deletes the access control information including the condition and the usage right information from the storage unit.

  The determination unit 31 updates the condition that the system call function execution unit 21 included in the access control information can receive streaming content to a new condition that allows the system call function execution unit 21 to receive streaming content. May be.

  Specifically, for example, when the condition that the system call function execution unit 21 included in the access control information can receive the streaming content is a condition that reception is possible until a certain usage time, the determination unit 31. The usage time indicated by the condition stored in the storage means is changed to the usage time indicated by the new condition, or the usage time indicated by the new condition is added to the usage time indicated by the condition stored in the storage means. To do.

  Further, for example, when the condition that the system call function execution unit 21 included in the access control information can receive the streaming content is a condition that reception is possible until a certain time limit, the determination unit 31 stores the storage unit Change the deadline indicated by the new condition to the deadline indicated by the new condition, or compare the deadline indicated by the condition stored in the storage means with the deadline indicated by the new condition, Change the conditions on the deadline.

  Further, for example, when the condition that the system call function execution unit 21 included in the access control information can receive the streaming content is a condition that it can be received up to a certain number of times, the determination unit 31 stores the storage means The number indicated by the new condition is changed to the number indicated by the new condition, or the number indicated by the new condition is added to the number indicated by the condition stored in the storage means.

  Further, for example, when the condition that the system call function execution unit 21 included in the access control information can receive the streaming content is a condition that the streaming can be received only at a certain place, The condition indicated by the stored condition is changed to the place indicated by the new condition, the place indicated by the new condition is added to the place indicated by the condition stored by the storage means, or the condition stored by the storage means Is compared with the location indicated by the new condition, and the location is changed to the one indicating the wider range.

  Further, for example, when the condition that the system call function execution unit 21 included in the access control information can receive the streaming content is a condition that it can be received only on a certain day of the week, the determination unit 31 stores the storage means. The day indicated by the new condition is changed to the day indicated by the new condition, or the day indicated by the new condition is added to the day indicated by the condition stored in the storage unit.

  Further, for example, when the condition that the system call function execution unit 21 included in the access control information can receive the streaming content is a condition that the streaming can be received only in a certain time period, The time zone indicated by the stored condition is changed to the time zone indicated by the new condition, or the time zone indicated by the new condition is added to the time zone indicated by the condition stored by the storage means.

  As described above, according to this embodiment, since the condition is set when streaming content is received, the streaming content reception control can be performed more finely.

Embodiment 3 FIG.
A third embodiment of the present invention will be described. Since the configuration of the third embodiment of the present invention is the same as that of the first embodiment, the same reference numerals as those in FIG.

  The usage right information in the third embodiment of the present invention is streamed by the stored application program execution unit 1 to the connection destination address, the storable flag, the stored application identifier, and the playback application identifier in the first embodiment. Information indicating conditions under which the content can be stored in the storage means as the secondary generation data 5 is added.

  The conditions that allow the streaming unit to store the streaming content as the secondary generation data 5 are specifically, for example, a condition that the storage unit can store the streaming content until a certain usage time, or a certain time limit. The condition that it can be stored in the storage means, the condition that it can be stored in the storage means up to a certain number of times, the condition that it can be stored in the storage means only at a certain place, only on certain days of the week A condition that it can be stored in the storage means (for example, reception is possible only on Sundays every week), a condition that it can be stored in the storage means only for a certain period of time (for example, reception only between 9:00 and 10:00 every day) Possible).

  In addition, the determination unit 31 according to the third embodiment of the present invention is based on the condition that the storage application program execution unit 1 included in the access control information can store the streaming content as the secondary generation data 5 in the storage unit. The stored application program execution unit 1 determines whether or not to store the streaming content as secondary generation data 5 in the storage means.

  Further, when the system call function execution unit 21 starts and ends access to the server or the like indicated by the connection destination address, the system call function execution unit 21 transmits information indicating the start of use and the end of use via the determination unit 31 and the usage right information conversion unit 32. The right management unit 33.

  Next, the operation of the third exemplary embodiment of the present invention will be described. Since the operation until the storage unit stores the access control information is the same as the operation in the first embodiment, the description thereof is omitted. The access control information includes information indicating conditions under which the storage application program execution unit 1 can store the streaming content as the secondary generation data 5 in the storage unit.

  An operation that is different from the first embodiment in the operation when the stored application program execution unit 1 according to the third embodiment of the present invention stores the streaming content in the storage means as the secondary generation data 5 will be described.

  When the stored application program execution unit 1 makes a use start access to the system call function 21, the system call function execution unit 21 receives information indicating the start of use via the determination unit 31 and the usage right information conversion unit 32 and the rights management unit 33. To enter.

  Further, when the stored application program execution unit 1 makes a use end access to the system call function 21, the system call function execution unit 21 manages information indicating the use end via the determination unit 31 and the usage right information conversion unit 32. Input to the unit 33.

  The right management unit 33 stores the time when the information indicating the start of use is input and the time when the information indicating the end of use is input in the storage unit.

  The determination unit 31 may input information indicating the start of use and information indicating the end of use to the right management unit 33 without using the use right information conversion unit 32.

  In step S207, the determination unit 31 according to the first embodiment reads, from the storage unit, access control information including a connection destination address that matches a connection destination address of a server or the like connected to receive streaming content. Then, referring to the storable flag included in the access control information, a process of determining whether or not to permit the streaming content to be stored is performed. The determination unit 31 of the third embodiment performs the process of step S207. In addition, whether the request for saving the streaming content input by the user matches the condition that the storage application program execution unit 1 indicated by the access control information can store the streaming content as the secondary generation data 5 in the storage unit Judge whether or not.

  Whether the request for saving the streaming content input by the user satisfies a condition that the storage application program execution unit 1 indicated by the access control information can store the streaming content as the secondary generation data 5 in the storage unit. The determination will be described.

  For example, the storage application program execution unit 1 indicated by the access control information can be stored in the storage unit until a condition that allows the storage unit to store the streaming content as the secondary generation data 5 in the storage unit. If the condition is, the determination unit 31 calculates the use time based on the time when the information indicating the start of use stored in the storage unit is input and the time when the information indicating the end of use is input. Then, the calculated usage time is compared with the usage time indicated by the condition.

  If the determination unit 31 determines that the usage time indicated by the condition is longer or the same as the calculated usage time, the determination unit 31 performs the processing from step S207 onward in the first embodiment. If the determination unit 31 determines that the usage time indicated by the condition is shorter than the calculated usage time, the determination unit 31 inputs information indicating that the streaming content storage is not permitted to the system call function execution unit 21 to execute the system call function execution. When the information indicating that the streaming content storage is not permitted is input, the unit 21 inputs the information indicating that the streaming content storage is not permitted to the storage application program execution unit 1, and the storage application program execution unit 1 The process of step S209 is performed.

  For example, the condition that the storage application program execution unit 1 indicated by the access control information can store the streaming content in the storage unit as the secondary generation data 5 can be stored in the storage unit until a certain time limit. If there is, the determination unit 31 determines whether or not the current date and time is within the time limit indicated by the condition.

  If the determination unit 31 determines that the current date and time is within the time limit indicated by the condition, the determination unit 31 performs the processing from step S207 onward in the first embodiment. If the determination unit 31 determines that the current date and time is not within the range of the time limit indicated by the condition, the determination unit 31 inputs information indicating that the streaming content storage is not permitted to the system call function execution unit 21, and the system call function When the information indicating that the streaming content storage is not permitted is input, the execution unit 21 inputs the information indicating that the streaming content storage is not permitted to the storage application program execution unit 1, and the storage application program execution unit 1 The process of step S209 is performed.

  In addition, for example, the condition that the storage application program execution unit 1 indicated by the access control information can store the streaming content in the storage unit as the secondary generation data 5 can be stored in the storage unit up to a certain number of times. If the condition is satisfied, the determination unit 31 determines whether or not the number of times indicated by the condition is 1 or more.

  If the determination unit 31 determines that the number of times indicated by the condition is 1 or more, the determination unit 31 performs the processing from step S207 onward in the first embodiment. If the determination unit 31 determines that the number of times indicated by the condition is not 1 or more, the determination unit 31 inputs information indicating that the streaming content storage is not permitted to the system call function execution unit 21, and the system call function execution unit 21 When information indicating that streaming content storage is not permitted is input, information indicating that streaming content storage is not permitted is input to the storage application program execution unit 1, and the storage application program execution unit 1 performs the process of step S209. I do.

  Further, for example, a condition that allows the storage application program execution unit 1 indicated by the access control information to store the streaming content as the secondary generation data 5 in the storage unit can be stored in the storage unit only at a certain place. If the condition is, the determination unit 31 determines whether or not the current location is a location indicated by the condition.

  Specifically, the determination unit 31 determines, for example, whether or not the current location is a location indicated by the condition depending on whether or not it is connected to the communication network indicated by the condition, or by a GPS (Global Positioning System). A current location is specified using a signal received from a satellite, and it is determined whether or not the current location is a location indicated by the condition.

  If the determination unit 31 determines that the current location is the location indicated by the condition, the determination unit 31 performs the processing from step S207 onward in the first embodiment. If the determination unit 31 determines that the current location is not the location indicated by the condition, the determination unit 31 inputs information indicating that the storage of the streaming content is not permitted to the system call function execution unit 21, and the system call function execution unit 21 When information indicating that content storage is not permitted is input, the storage application program execution unit 1 inputs information indicating that streaming content storage is not permitted, and the storage application program execution unit 1 performs the process of step S209. Do.

  Further, for example, the condition that the storage application program execution unit 1 indicated by the access control information can store the streaming content as the secondary generation data 5 in the storage unit can be stored in the storage unit only on certain days of the week. When the condition is satisfied, the determination unit 31 determines whether or not the current date is a day of the week indicated by the condition.

  If the determination unit 31 determines that the current date is the day of the week indicated by the condition, the determination unit 31 performs the processing from step S207 onward in the first embodiment. If the determination unit 31 determines that the current date is not the day of the week indicated by the condition, the determination unit 31 inputs information indicating that streaming content storage is not permitted to the system call function execution unit 21, and the system call function execution unit 21. When information indicating that streaming content storage is not permitted is input, information indicating that streaming content storage is not permitted is input to the storage application program execution unit 1, and the storage application program execution unit 1 executes step S209. Perform the process.

  In addition, for example, a condition that allows the storage application program execution unit 1 indicated by the access control information to store the streaming content as the secondary generation data 5 in the storage unit can be stored in the storage unit only during a certain time period. If the condition is, the determination unit 31 determines whether or not the current time is the time zone indicated by the condition.

  If the determination unit 31 determines that the current time is the time zone indicated by the condition, the determination unit 31 performs the processing from step S207 onward in the first embodiment. If the determination unit 31 determines that the current time is not the time zone indicated by the condition, the determination unit 31 inputs information indicating that the streaming content is not allowed to be stored into the system call function execution unit 21, and the system call function execution unit 21, when information indicating that streaming content storage is not permitted is input, the storage application program execution unit 1 inputs information indicating that streaming content storage is not permitted. The process of S209 is performed.

  When the stored application program execution unit 1 makes a use start access to the system call function 21, the system call function execution unit 21 manages information indicating the start of use via the determination unit 31 and the usage right information conversion unit 32. Input to the unit 33.

  Further, when the stored application program execution unit 1 makes a use end access to the system call function 21, the system call function execution unit 21 manages information indicating the use end via the determination unit 31 and the usage right information conversion unit 32. Input to the unit 33.

  The determination unit 31 may input information indicating the start of use and information indicating the end of use to the right management unit 33 without using the use right information conversion unit 32.

  The access control information may be stored in the storage unit until a certain usage time is reached as a condition that allows the storage application program execution unit 1 indicated by the access control information to store the streaming content as secondary generation data 5 in the storage unit. When the information indicating the condition that it is possible is included, when the information indicating the start of use is input, the right management unit 33 causes the storage unit to store the time when the information indicating the start of use is input. When the information indicating the end of use is input, the right management unit 33 reads the time when the information indicating the start of use is input from the storage unit and calculates the use time. Then, the calculated use time is subtracted from the use time indicated by the access control information condition, and the use time indicated by the access control information condition is updated.

  The condition that the access control information can be stored in the storage unit until the storage application program execution unit 1 can store the streaming content in the storage unit as the secondary generation data 5 until a certain number of uses. When the information indicating the start of use and the information indicating the end of use are input, the right management unit 33 subtracts 1 from the number of uses indicated by the condition of the access control information, Update the usage count indicated by the condition.

  The operation when the reproduction application program execution unit 4 according to the third embodiment of the present invention reproduces the secondary generation data 5 is the same as the operation according to the first embodiment, and thus the description thereof is omitted.

  If the determination unit 31 determines that the stored application program execution unit 1 included in the access control information does not satisfy the condition for storing the streaming content as the secondary generation data 5 in the storage unit, the determination unit 31 stores the access control information. Remove from means.

  The operation when the determination unit 31 deletes the access control information from the storage means will be described with reference to the drawings. FIG. 6 is a flowchart illustrating an operation when the determination unit 31 deletes the access control information from the storage unit in the third embodiment.

  The determination unit 31 satisfies a condition that the storage application program execution unit 1 included in the access control information can store the streaming content in the storage unit as the secondary generation data 5 at a timing such as once a day, for example. It is determined whether or not there is no more (step S501).

  Specifically, for example, when the condition that the storage application program execution unit 1 can store the streaming content in the storage unit as the secondary generation data 5 is a condition that it can be received until a certain usage time, the determination is made. The unit 31 determines whether the usage time indicated by the condition is 0 or less.

  When determining that the usage time indicated by the condition is 0 or less, the determining unit 31 deletes the access control information including the condition and the usage right information from the storage unit (step S502).

  In addition, for example, the condition that the storage application program execution unit 1 can store the streaming content in the storage unit as the secondary generation data 5 is a condition that the storage unit can store the streaming content until a certain time limit. The determination unit 31 determines whether or not the current date has passed the time limit indicated by the condition.

  If the determination unit 31 determines that the current date and time has already passed the deadline indicated by the condition, the determination unit 31 deletes the access control information including the condition and the usage right information from the storage unit.

  Note that the determination unit 31 determines that the stored application program execution unit 1 can store the streaming content in the storage unit as the secondary generation data 5 in the access control information. The next generation data 5 may be updated to a new condition that can be stored in the storage unit.

  Specifically, for example, the storage application program execution unit 1 included in the access control information is stored in the storage unit until a condition that allows the storage unit to store the streaming content as the secondary generation data 5 reaches a certain usage time. If it is a condition that it is possible, the determination unit 31 changes the usage time indicated by the condition stored in the storage means to the usage time indicated by the new condition, or the condition stored in the storage means The usage time indicated by the new condition is added to the usage time indicated by.

  In addition, for example, the condition that the storage application program execution unit 1 included in the access control information can store the streaming content in the storage unit as the secondary generation data 5 can be stored in the storage unit until a certain time limit. If it is a condition, the determination unit 31 changes the time limit indicated by the condition stored in the storage means to the time limit indicated by the new condition, or the time limit indicated by the condition stored in the storage means and the new condition are Compare the deadline shown and change the condition to the later deadline in time series.

  Further, for example, the condition that the storage application program execution unit 1 included in the access control information can store the streaming content in the storage unit as the secondary generation data 5 can be stored in the storage unit up to a certain number of times. If the condition is satisfied, the determination unit 31 changes the number of times indicated by the condition stored in the storage means to the number indicated by the new condition, or the new condition is added to the number indicated by the condition stored in the storage means. Add the number of times shown.

  In addition, for example, a condition that allows the storage application program execution unit 1 included in the access control information to store the streaming content as the secondary generation data 5 in the storage unit can be stored in the storage unit only at a certain place. If the condition is, the determination unit 31 changes the location indicated by the condition stored in the storage unit to the location indicated by the new condition, or the new condition is changed to the location indicated by the condition stored in the storage unit. Or the location indicated by the condition stored in the storage means is compared with the location indicated by the new condition, and the location is changed to a condition indicating a wider range.

  Furthermore, for example, the condition that the storage application program execution unit 1 included in the access control information can store the streaming content as the secondary generation data 5 in the storage unit can be stored in the storage unit only on certain days of the week. If the condition is satisfied, the determination unit 31 changes the day of the week indicated by the condition stored in the storage unit to the day of the week indicated by the new condition or sets a new condition on the day of the week indicated by the condition stored in the storage unit. Add the day of the week to show.

  In addition, for example, the storage application program execution unit 1 included in the access control information can store the streaming content as the secondary generation data 5 in the storage unit, and the storage unit can store the condition only in a certain time zone. If the condition is, the determination unit 31 changes the time zone indicated by the condition stored in the storage unit to the time zone indicated by the new condition, or the time zone indicated by the condition stored in the storage unit. Add the time zone indicated by the new condition.

  As described above, according to this embodiment, since the condition is set when the streaming content is stored, the storage control of the streaming content can be performed more finely.

Embodiment 4 FIG.
A fourth embodiment of the present invention will be described. Since the configuration of the fourth embodiment of the present invention is the same as that of the first embodiment, the same reference numerals as those in FIG.

  Note that the usage right information in the fourth embodiment of the present invention includes the connection destination address, the storable flag, the stored application identifier, and the playback application identifier in the first embodiment, in which the playback application program execution unit 4 includes Information indicating conditions under which the next generation data 5 can be reproduced is added.

  Specifically, the conditions under which the secondary generation data 5 can be reproduced are, for example, the condition that the secondary generation data 5 can be reproduced until a certain usage time, the condition that the reproduction can be performed until a certain time limit, and the reproduction up to a certain number of times. A condition that it can be played, a condition that it can be played back only at a certain place, a condition that it can play back only on a certain day (for example, reception is possible only on Sunday every week), , And can be received only between 9:00 and 10:00 every day).

  In addition, the determination unit 31 according to the fourth embodiment of the present invention performs a reproduction application program execution unit based on a condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5. 4 determines whether or not the secondary generation data 5 is to be reproduced.

  Next, the operation of the fourth exemplary embodiment of the present invention will be described. Since the operation until the storage unit stores the access control information is the same as the operation in the first embodiment, the description thereof is omitted. The access control information includes information indicating conditions under which the reproduction application program execution unit 4 can reproduce the secondary generation data 5.

  Further, the operation when the stored application program execution unit 1 in the fourth embodiment of the present invention stores the streaming content in the storage means as the secondary generation data 5 is the same as the operation in the first embodiment. Therefore, the description is omitted.

  The operation when the reproduction application program execution unit 4 according to the fourth embodiment of the present invention reproduces the secondary generation data 5 will be described with respect to the operation different from the first embodiment.

  In step S303, the determination unit 31 according to the first embodiment determines whether the storage unit stores access control information associated with the file name of the input secondary generation data 5. However, in addition to the processing of step S303, the determination unit 31 of the fourth embodiment performs a playback application program execution unit indicated by the access control information that indicates a request for playback of the secondary generation data 5 input by the user. It is determined whether or not 4 satisfies the condition for reproducing the secondary generation data 5.

  Describes whether or not the request for reproduction of the secondary generation data 5 input by the user meets the condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5 To do.

  For example, when the condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5 is that the reproduction can be performed until a certain time limit, the determination unit 31 However, it is judged whether it is within the range of the time limit indicated by the condition.

  When the determination unit 31 determines that the current date and time is within the time limit indicated by the condition, the determination unit 31 performs the processing from step S303 onward in the first embodiment. If the determination unit 31 determines that the current date and time is not within the range of the time limit indicated by the condition, the determination unit 31 inputs information indicating that the reproduction of the secondary generation data 5 is not permitted to the system call function execution unit 21. When the information indicating that the streaming content reception is not permitted is input, the system call function execution unit 21 inputs the information indicating that the secondary generation data 5 is not permitted to be reproduced to the reproduction application program execution unit 4 and reproduces it. The application program execution unit 4 performs the process of step S306.

  For example, when the condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5 is a condition that reproduction can be performed up to a certain number of times, the determination unit 31 It is determined whether the number of times indicated by the condition is 1 or more.

  If the determination unit 31 determines that the number of times indicated by the condition is 1 or more, the determination unit 31 performs the processing from step S303 onward in the first embodiment. If the determination unit 31 determines that the number of times indicated by the condition is not 1 or more, the determination unit 31 inputs information indicating that the reproduction of the secondary generation data 5 is not permitted to the system call function execution unit 21, and the system call function execution unit 21, when information indicating that reception of streaming content is not permitted is input, information indicating that playback of the secondary generation data 5 is not permitted is input to the playback application program execution unit 4, and the playback application program execution unit 4. Performs the process of step S306.

  For example, when the condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5 is a condition that reproduction is possible only at a certain place, the determination unit 31 It is determined whether or not the current location is a location indicated by the condition.

  Specifically, the determination unit 31 determines, for example, whether or not the current location is a location indicated by the condition depending on whether or not it is connected to the communication network indicated by the condition, or by a GPS (Global Positioning System). A current location is specified using a signal received from a satellite, and it is determined whether or not the current location is a location indicated by the condition.

  If the determination unit 31 determines that the current location is the location indicated by the condition, the determination unit 31 performs the processing from step S303 onward in the first embodiment. If the determination unit 31 determines that the current location is not the location indicated by the condition, the determination unit 31 inputs information indicating that reproduction of the secondary generation data 5 is not permitted to the system call function execution unit 21, and the system call function execution unit 21. When information indicating that reception of streaming content is not permitted is input, information indicating that playback of secondary generation data 5 is not permitted is input to the playback application program execution unit 4, and the playback application program execution unit 4 The process of step S306 is performed.

  For example, when the condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5 is that the reproduction is possible only on a certain day, the determination unit 31 Determines whether or not the day of the week indicated by the condition.

  If the determination unit 31 determines that the current date is the day of the week indicated by the condition, the determination unit 31 performs the processing from step S303 onward in the first embodiment. If the determination unit 31 determines that the current date is not a day of the week indicated by the condition, the determination unit 31 inputs information indicating that reproduction of the secondary generation data 5 is not permitted to the system call function execution unit 21, and the system call function When the information indicating that the streaming content reception is not permitted is input, the execution unit 21 inputs the information indicating that the secondary generation data 5 is not permitted to be reproduced to the reproduction application program execution unit 4 and executes the reproduction application program. The unit 4 performs the process of step S306.

  For example, when the condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5 is a condition that it can be received only in a certain time period, the determination unit 31 It is determined whether or not the time is a time zone indicated by the condition.

  If the determination unit 31 determines that the current time is the time zone indicated by the condition, the determination unit 31 performs the processing from step S303 onward in the first embodiment. If the determination unit 31 determines that the current time is not the time zone indicated by the condition, the determination unit 31 inputs information indicating that reproduction of the secondary generation data 5 is not permitted to the system call function execution unit 21, When the information indicating that the streaming content reception is not permitted is input, the function executing unit 21 inputs the information indicating that the secondary generation data 5 is not permitted to be input to the reproduction application program executing unit 4. The execution unit 4 performs the process of step S306.

  When the reproduction application program execution unit 4 starts reproduction of the secondary generation data 5, the right management unit transmits information indicating the start of use via the system call function execution unit 21, the determination unit 31, and the usage right information conversion unit 32. 33.

  When the reproduction application program execution unit 4 finishes reproducing the secondary generation data 5, the right management unit transmits information indicating the end of use via the system call function execution unit 21, the determination unit 31, and the usage right information conversion unit 32. 33.

  The determination unit 31 may input information indicating the start of use and information indicating the end of use to the right management unit 33 without using the use right information conversion unit 32.

  When the access control information includes information indicating a condition that the reproduction application program execution unit 4 can reproduce the secondary generation data 5 as a condition that the reproduction can be reproduced until a certain usage time, the right management unit 33 When the information indicating the start of use is input, the time when the information indicating the start of use is input is stored in the storage means. When the information indicating the end of use is input, the right management unit 33 reads the time when the information indicating the start of use is input from the storage unit and calculates the use time. Then, the calculated use time is subtracted from the use time indicated by the access control information condition, and the use time indicated by the access control information condition is updated.

  When the access control information includes information indicating a condition that the reproduction application program execution unit 4 can reproduce the secondary generation data 5 as a condition that it can be received until a certain number of times of use, the right management unit 33 When the information indicating the start of use and the information indicating the end of use are input, 1 is subtracted from the number of uses indicated by the condition of the access control information, and the number of uses indicated by the condition of the access control information is updated.

  When determining that the reproduction application program execution unit 4 included in the access control information does not satisfy the condition for reproducing the secondary generation data 5, the determining unit 31 deletes the access control information from the storage unit.

  The operation when the determination unit 31 deletes the access control information from the storage means will be described with reference to the drawings. FIG. 7 is a flowchart illustrating an operation when the determination unit 31 deletes the access control information from the storage unit in the fourth embodiment.

  For example, the determination unit 31 determines whether or not the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5 at a timing such as once a day. Is determined (step S601).

  Specifically, for example, when the condition that the reproduction application program execution unit 4 indicated by the access control information can reproduce the secondary generation data 5 is that it can be received until a certain usage time, the determination unit 31 determines whether the usage time indicated by the condition is 0 or less.

  When determining that the usage time indicated by the condition is 0 or less, the determining unit 31 deletes the access control information including the condition and the usage right information from the storage unit (step S602).

  Further, for example, when the condition that the reproduction application program execution unit 4 indicated by the access control information can reproduce the secondary generation data 5 is a condition that it can be received until a certain time limit, the determination unit 31 It is determined whether or not the date and time of has passed the time limit indicated by the condition.

  If the determination unit 31 determines that the current date and time has already passed the deadline indicated by the condition, the determination unit 31 deletes the access control information including the condition and the usage right information from the storage unit.

  Note that the determination unit 31 allows the reproduction application program execution unit 4 to reproduce the secondary generation data 5 on the condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5. You may update to the new condition which can be performed.

  Specifically, for example, when the condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5 is a condition that reproduction is possible until a certain usage time, The determination unit 31 changes the usage time indicated by the condition stored in the storage means to the usage time indicated by the new condition, or the usage time indicated by the new condition in the usage time indicated by the condition stored in the storage means. Or add.

  For example, when the condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5 is a condition that reproduction can be performed until a certain time limit, the determination unit 31 stores The time limit indicated by the condition stored in the means is changed to the time limit indicated by the new condition, or the time limit indicated by the condition stored in the memory means is compared with the time limit indicated by the new condition, Change the conditions to the later deadline.

  Further, for example, when the condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5 is a condition that it can be received up to a certain number of times, the determination unit 31 stores The number indicated by the condition stored in the means is changed to the number indicated by the new condition, or the number indicated by the new condition is added to the number indicated by the condition stored in the storage means.

  Further, for example, when the condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5 is a condition that it can be received only at a certain place, the determination unit 31 The location indicated by the condition stored in the storage means is changed to the location indicated by the new condition, the location indicated by the new condition is added to the location indicated by the condition stored in the storage means, or the storage means stores The place indicated by the existing condition is compared with the place indicated by the new condition, and the condition is changed to a condition indicating a wider range of places.

  Further, for example, when the condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5 is a condition that it can be received only on a certain day, the determination unit 31 stores The day indicated by the condition stored in the means is changed to the day indicated by the new condition, or the day indicated by the new condition is added to the day indicated by the condition stored in the storage means.

  For example, when the condition that the reproduction application program execution unit 4 included in the access control information can reproduce the secondary generation data 5 is a condition that reception is possible only in a certain time period, the determination unit 31 The time zone indicated by the condition stored in the storage unit is changed to the time zone indicated by the new condition, or the time zone indicated by the new condition is added to the time zone indicated by the condition stored in the storage unit.

  As described above, according to this embodiment, since conditions are set when using a server or the like indicated by a connection destination address, reproduction control of the secondary generation data 5 can be performed more finely.

Embodiment 5 FIG.
A fifth embodiment of the present invention will be described. Since the configuration of the fifth embodiment of the present invention is the same as that of the first embodiment, the same reference numerals as those in FIG.

  Note that the usage right information conversion unit 22 according to the fifth embodiment of the present invention generates a table that associates the connection destination address with the stored application identifier based on a plurality of usage right information, and stores the table in the storage unit. . The table associating the connection destination address with the stored application identifier is input to the right management unit 33 by operating the input means such as a keyboard or from a server connected through a communication network, for example. It may be received or a table generated by the usage right information conversion unit 22 based on a plurality of usage right information stored in the storage means.

  The system call function execution unit 21 inputs the connection destination address input by the stored application program execution unit 1 to the determination unit 31 and requests the determination unit 31 to determine whether the streaming content can be received.

  When the connection destination address is input, the determination unit 31 refers to the table stored in the storage unit to determine whether there is a stored application identifier associated with the input connection destination address. If it is determined that there is a stored application identifier associated with the input connection destination address, information indicating permission to receive the streaming content is input to the system call function execution unit 21.

  If the determination unit 31 determines that there is no stored application identifier associated with the input connection destination address, the determination unit 31 inputs information indicating that the streaming content reception is not permitted to the system call function execution unit 21.

  As described above, according to this embodiment, the determination unit 31 determines whether to permit reception of streaming content based on a table generated based on a plurality of usage right information. Can do.

Embodiment 6 FIG.
A sixth embodiment of the present invention will be described. Since the configuration of the sixth embodiment of the present invention is the same as that of the first embodiment, the same reference numerals as those in FIG.

  Note that the usage right information conversion unit 22 according to the sixth embodiment of the present invention generates a table that associates the connection destination address with the reproduction application identifier based on a plurality of usage right information in advance and stores the table in the storage unit. . The table associating the connection destination address with the stored application identifier is input to the right management unit 33 by operating the input means such as a keyboard or from a server connected through a communication network, for example. It may be received or a table generated by the usage right information conversion unit 22 based on a plurality of usage right information stored in the storage means.

  Further, the determination unit 31 generates a table generated by the usage right information conversion unit 22 when the file name of the secondary generation data 5 input by the system call function execution unit 21 is stored in the storage unit in association with the access control information. , The file name of the secondary generation data 5 input by the system call function execution unit 21 is associated with the connection destination address and the playback application identifier included in the access control information.

  The system call function execution unit 21 inputs the file name of the secondary generation data 5 input by the playback application program execution unit 4 to the determination unit 31 and requests the determination unit 31 to determine whether the secondary generation data 5 can be played back. To do.

  When the file name of the secondary generation data 5 is input, the determination unit 31 refers to the table stored in the storage unit, and reproduces the data associated with the file name of the input secondary generation data 5. It is determined whether or not an application identifier exists, and if it is determined that a reproduction application identifier associated with the input file name of the secondary generation data 5 exists, information indicating permission of reproduction of the secondary generation data 5 Is input to the system call function execution unit 21.

  If the determination unit 31 determines that there is no reproduction application identifier associated with the file name of the input secondary generation data 5, the system call indicates information indicating that reproduction of the secondary generation data 5 is not permitted. Input to the function execution unit 21.

  As described above, according to this embodiment, the determination unit 31 determines whether to permit the reproduction of the secondary generation data 5 based on the table generated based on the plurality of usage right information. Judgment can be made.

  Note that the present invention may be implemented by combining all of the above-described embodiments or a combination of two or more thereof. Specifically, for example, the combination of the second embodiment, the third embodiment, and the fourth embodiment is used to determine whether streaming content can be received and stored and the secondary generation data 5 can be reproduced. You may control by time etc.

  In each of the embodiments described above, the control of receiving, storing, and playing streaming content has been described as an example. However, the present invention is not limited to this, and for example, receiving, recording, and playing back a television broadcast. You may control.

  The present invention can be applied to a terminal or the like that controls reception of streaming content, storage control, and playback control of stored data. Further, the present invention can also be applied to a recorder that records television broadcasts or receives encrypted pay broadcasts.

It is a block diagram which shows one structural example of the 1st Embodiment of this invention. It is a flowchart explaining operation | movement until a memory | storage means memorize | stores access control information. It is a flowchart explaining operation | movement when a preservation | save application program execution part memorize | stores streaming content in a memory | storage means as secondary production | generation data. 5 is a flowchart for explaining an operation when a reproduction application program execution unit reproduces secondary generation data 5; In 2nd Embodiment, it is a flowchart explaining the operation | movement at the time of a judgment part deleting access control information from a memory | storage means. FIG. 10 is a flowchart illustrating an operation when a determination unit deletes access control information from a storage unit in the third embodiment. In a 4th embodiment, it is a flow chart explaining operation at the time of a judgment part deleting access control information from a storage means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Saved application program execution part 2 OS basic function execution part 3 Access control function execution part 4 Reproduction application program execution part 5 Secondary generation data 21 System call function execution part 31 Judgment part 32 Usage right information conversion part 33 Rights management part

Claims (39)

Storage means for storing usage right information including information indicating whether or not there is a right to receive content;
Determining means for determining whether to receive the content according to the usage right information stored in the storage means;
A system call function execution unit that receives the content via a communication network when the determination unit determines to receive the content;
A content access control terminal comprising OS basic function execution means including the system call function execution means. Storage means for storing usage right information including information indicating whether or not there is a right to store content received via a communication network as secondary generation data;
Determining means for determining whether to store the content in the storage means as the secondary generation data according to the usage right information stored in the storage means;
And a system call function execution means for inputting the content into a storage application program for storing the content in the storage means when the determination means determines that the content is stored in the storage means as the secondary generation data. ,
A content access control terminal comprising OS basic function execution means including the system call function execution means. The determination means determines whether to receive the content according to a combination of information indicating a storage application program that stores the content in the storage means when the system call function execution means receives the content, and information indicating a content transmission source. The content access control terminal according to claim 1 or 2. Storage means for storing secondary generation data generated from content received via a communication network and usage right information including information indicating whether or not there is a right to reproduce the secondary generation data;
Determining means for determining whether to reproduce the secondary generation data according to the usage right information stored in the storage means;
A system call function executing means for inputting the secondary generation data to a reproduction application program for reproducing the secondary generation data when the determination means determines to reproduce the secondary generation data;
A content access control terminal comprising OS basic function execution means including the system call function execution means. The content access control terminal according to claim 4, wherein the determining means determines whether or not to reproduce the secondary generation data according to a combination of information indicating the reproduction application program and information indicating the secondary generation data. . When the determination unit determines that the content is not received, the system call function execution unit inputs the fact to the storage application program, and the storage application program notifies the user to that effect,
When the determination unit determines that the content is not stored in the storage unit as secondary generation data, the system call function execution unit inputs the fact to the storage application program, and the storage application program Notify the user,
The system call function execution unit, when the determination unit determines not to reproduce the secondary generation data, inputs the fact to the reproduction application program, and the reproduction application program notifies the user to that effect. The content access control terminal according to any one of claims 2 to 5. The content access control terminal according to any one of claims 1 to 6, further comprising usage right information conversion means for converting the usage right information into access control information that is information that can be determined by the determination means. The content access control terminal according to claim 7, further comprising right management means for inputting usage right information. Including rights management means for entering access control information;
The content access control terminal according to claim 7 or 8, wherein the determination unit stores the access control information in a storage unit. When the new usage right information is input, the usage right information converting means converts it into access control information,
The content access control terminal according to claim 9, wherein the determination unit updates, adds, or deletes the access control information stored in the storage unit based on the access control information converted by the usage right information conversion unit. The usage right information includes information indicating any one or more of a condition for receiving content, a condition for storing the received content as secondary generation data, and a condition for reproducing the secondary generation data,
The content access control terminal according to any one of claims 8 to 10, wherein the determination unit updates or deletes the corresponding access control information when determining that the condition included in the use right information is not satisfied. The right management means includes usage right information according to reception of content, storage of the received content as secondary generation data, or reproduction of the secondary generation data, and access control information corresponding to the usage right information. The content access control terminal according to claim 11, wherein the condition is updated. The usage right information conversion unit generates a table associating information indicating a content transmission source with information indicating a storage application program or a reproduction application program based on a plurality of usage right information. The content access control terminal according to claim 1. On the computer,
A determination process for determining whether to receive the content according to the usage right information stored in the storage means for storing the usage right information including information indicating whether or not there is a right to receive the content;
If it is determined that the content is received in the determination process, a system call function execution process for receiving the content via a communication network is executed.
A content access control program for executing an OS basic function execution process including the system call function execution process. On the computer,
According to the usage right information stored in the storage means for storing the usage right information including information indicating whether or not the content received via the communication network has the right to store as the secondary generation data, the content Determination processing for determining whether or not to store in the storage means as the secondary generation data;
If it is determined in the determination process that the content is stored in the storage unit as the secondary generation data, a system call function execution process for inputting the content to a storage application program that stores the content in the storage unit is executed. Let
A content access control program for executing an OS basic function execution process including the system call function execution process. Whether or not to receive the content according to a combination of information indicating a storage application program that stores the content in the storage unit when the content is received in the system call function execution processing and information indicating a content transmission source in the determination processing The content access control program according to claim 14 or 15, wherein: On the computer,
Storage means for storing secondary generation data generated from content received via a communication network and usage right information including information indicating whether or not there is a right to reproduce the secondary generation data is stored. A determination process for determining whether to reproduce the secondary generation data according to the usage right information;
If it is determined in the determination process that the secondary generation data is to be reproduced, a system call function execution process for causing the reproduction application program for reproducing the secondary generation data to input the secondary generation data is executed,
A content access control program for executing an OS basic function execution process including the system call function execution process. The content access control program according to claim 17, wherein the determination process determines whether or not to reproduce the secondary generation data according to a combination of information indicating the reproduction application program and information indicating the secondary generation data. . In the system call function execution process, when it is determined that the content is not received in the determination process, the storage application program is notified to that effect, and the storage application program notifies the user to that effect,
In the system call function execution process, if it is determined in the determination process that the content is not stored in the storage means as secondary generation data, the storage application program is instructed to do so, and the storage application program Notify the user,
In the system call function execution process, if it is determined in the determination process that the secondary generation data is not to be reproduced, the reproduction application program is input to that effect, and the reproduction application program notifies the user accordingly. The content access control program according to any one of claims 15 to 18. The content access control program according to any one of claims 14 to 19, wherein a usage right information conversion process for converting the usage right information into access control information that is information that can be determined by the determination process is executed. The content access control program according to claim 20, wherein a right management process for inputting usage right information is executed. Execute the rights management process to input access control information,
The content access control program according to claim 20 or claim 21, wherein the access control information is stored in a storage means in the determination process. In the usage right information conversion process, when new usage right information is input, it is converted into access control information,
23. The content access control program according to claim 22, wherein in the determination process, the access control information stored in the storage means is updated, added or deleted based on the access control information converted by the usage right information conversion process. The usage right information includes information indicating any one or more of a condition for receiving content, a condition for storing the received content as secondary generation data, and a condition for reproducing the secondary generation data,
The content access control program according to any one of claims 21 to 23, wherein when the determination process determines that the condition included in the usage right information is not satisfied, the corresponding access control information is updated or deleted. In the rights management process, the content is received, the storage as the secondary generation data of the received content, or the usage right information according to the reproduction of the secondary generation data and the access control information corresponding to the usage right information are included. The content access control program according to claim 24, wherein the condition is updated. The usage right information conversion process generates a table associating information indicating a content transmission source with information indicating a storage application program or a reproduction application program based on a plurality of usage right information. The content access control program according to any one of the above. OS operating means that operates according to the OS
Determining whether or not to receive the content according to the usage right information stored in the storage means for storing the usage right information including information indicating whether or not there is a right to receive the content;
When it is determined that the content is received, the content is received via a communication network. OS operating means that operates according to the OS
According to the usage right information stored in the storage means for storing the usage right information including information indicating whether or not the content received via the communication network has the right to store as the secondary generation data, the content To store in the storage means as the secondary generation data,
When it is determined that the content is stored in the storage unit as the secondary generation data, the content is input to a storage application program that stores the content in the storage unit. When content is received in the system call function execution process, it is determined whether or not to receive the content according to a combination of information indicating a storage application program that stores the content in a storage unit and information indicating a content transmission source. The content access control method according to claim 27 or claim 28. OS operating means that operates according to the OS
Storage means for storing secondary generation data generated from content received via a communication network and usage right information including information indicating whether or not there is a right to reproduce the secondary generation data is stored. Determining whether to reproduce the secondary generation data according to the usage right information,
When it is determined that the secondary generation data is to be reproduced, the secondary generation data is input to a reproduction application program that reproduces the secondary generation data. The content access control method according to claim 30, wherein it is determined whether or not to reproduce the secondary generation data according to a combination of information indicating the reproduction application program and information indicating the secondary generation data. If it is determined that the content is not received, it is input to the storage application program, and the storage application program notifies the user to that effect,
When it is determined that the content is not stored in the storage means as secondary generation data, the fact is input to the storage application program, and the storage application program notifies the user to that effect,
The determination according to any one of claims 28 to 31, wherein when determining that the secondary generation data is not to be reproduced, the fact is input to a reproduction application program, and the reproduction application program notifies the user accordingly. Content access control method. The content access control method according to any one of claims 27 to 32, wherein the usage right information is converted into access control information that is information that can be determined by the determination means. The content access control method according to claim 33, wherein usage right information is input. Enter access control information,
The content access control method according to claim 33 or claim 34, wherein the access control information is stored in a storage means. When new usage right information is input, it is converted to access control information.
The content access control method according to claim 35, wherein the access control information stored in the storage means is updated, added, or deleted based on the converted access control information. The usage right information includes information indicating any one or more of a condition for receiving content, a condition for storing the received content as secondary generation data, and a condition for reproducing the secondary generation data,
The content access control method according to any one of claims 34 to 36, wherein when it is determined that the condition included in the usage right information is no longer satisfied, the corresponding access control information is updated or deleted. The usage rights information and the conditions included in the access control information corresponding to the usage rights information are updated according to reception of the content, storage of the received content as secondary generation data, or reproduction of the secondary generation data. Item 38. The content access control method according to Item 37. The table which associates the information which shows the transmission origin of a content with the information which shows a preservation | save application program or a reproduction | regeneration application program based on several use right information. Content access control method.

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