JP2009151935A - Recording apparatus, method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a degree of freedom in using content, while preventing content duplication without restriction. <P>SOLUTION: When the supplied content is the content of "copy permitted only for one generation" and recording it on an HDD (hard disk drive) 25 is directed by a user, the content for move is created based on the original content, and recorded on a content recording part 56 for move. In a movable content list which is displayed by a list display section 58, a title of the content for move is not displayed, the content for move is made so that its move can be handled by the title of the original content. When the move of the content is directed, the move using the content for move is performed. This invention is applicable to equipment which can record the content broadcasted by digital broadcasting. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a recording apparatus, method, and program, and in particular, a recording apparatus, method, and program that can increase the degree of freedom of how to use content while preventing an unlimited number of copies from being created. About.

  The copyright information of the program (contents) in the current digital broadcasting is inserted into the PMT (Program Specific Information) PMT (Program Map Table) of the digital copy control descriptor (digital_copy_control_descriptor) multiplexed in the transport stream Is defined as

  That is, the digital copy control descriptor is used by the right holder of the content to transmit information regarding the copy of the content to the device on the receiver side.

  FIG. 1 is a diagram showing a data structure of a digital copy control descriptor.

  “Digital_recording_control_data” in the fourth line from the top is information for controlling the copy generation as the copyright information of the content. When 2 bits of “digital_recording_control_data” are 00b, it indicates “copying is possible without constraint”, and when 10b is “1st generation can be copied”. If it is 11b, it indicates “copy prohibited”.

  For example, in a hybrid recording device with a built-in HDD (Hard Disk Drive) and DVD (Digital Versatile Disc) drive, 2 bits of “digital_recording_control_data” is recorded on the HDD as 10b (“only 1 generation can be copied”) In this case, it is treated that “1 generation” has been copied at that time, and the CCI (Copy Control Information) of the content is set to “copy prohibited”. Here, the CCI is information relating to restrictions on copying of each content within the recording apparatus.

  Therefore, from now on, the user can view the content as long as it is reproduced from the HDD, but cannot copy it to a DVD and view it on an external player. In the current digital broadcasting, the creation of a copy is prevented in this way.

  By the way, the recording capacity of the HDD is naturally limited, and when content is recorded to the full capacity of the HDD, the content can be copied to other removable media in order to secure the recording capacity without erasing the content. It is conceivable to delete the content in the HDD, but due to the limitations described above, it is not possible depending on the content.

  In order to solve such a problem, there is a technique called “Move”.

  Move, for example, copies the contents of the HDD that have been copied to a removable media such as a DVD or Blu-ray Disk (trademark) while copying the contents of the HDD that have been copied. When all the copies are completed by erasing or invalidating the HDD, all the contents in the HDD are erased or invalidated, leaving one usable content on the removable media and from the HDD. This is a technique for making it unusable (Patent Document 1).

  This makes it possible for the user to create a copy on other removable media, even if the content is “copyable only for one generation” recorded in the built-in HDD, and the removable content is recorded (moved). By mounting the media on other players, the content can be used from other than on the HDD. Even in this case, multiple copies are not created.

JP 2003-16725 A

  However, with the recent diversification of recording media and display media, one content such as a television program recorded on a recording device in the home is recorded on a memory stick (trademark) or the like, Although there is a need to view outdoors using a device, and to use a large-screen display by operating the recording device, “Copy one generation only” In the case of content, there is a problem that even if “move” is used, such a need cannot be met.

  The current Japanese broadcast operation regulations, ARIB TR-B14 (terrestrial digital television broadcast operation regulations) and ARIB TR-B15 (BS / broadband CS digital broadcast operation regulations), “1 “Only generations can be copied” content recording is limited to one, but only when recording in different recording methods and simultaneously, up to two recordings can be made on removable media installed in the recording device. Is allowed.

  Therefore, the user can record the content on the HDD built in the recording device, and at the same time, record the same content on a memory stick or the like with a different recording method, thereby realizing various usages as described above. However, it is necessary to perform a recording operation on all the removable media before the recording of the content on the HDD is started, and the operation is complicated and the selection range of the media is narrow.

  For example, the user needs to perform a recording operation to the HDD built in the recording device and a recording operation to the memory stick, such as setting a recording method, before the broadcasting of a certain television program is started. The operation is complicated.

  In addition, even though the television program was recorded on a memory stick because it was going to be viewed using a portable device, the television program was recorded on the DVD even if the user later wanted to view it using a DVD player at home. It cannot be re-recorded, and the width of the selected media is narrow.

  The present invention has been made in view of such a situation, and it is possible to increase the degree of freedom of how to use content while preventing an unlimited number of copies from being created.

  A recording apparatus according to one aspect of the present invention is a recording apparatus for recording content broadcast by digital broadcasting, and receiving means for receiving a digital copy control descriptor described in a PMT sent by the digital broadcast together with the content Recording control means for recording the content and recording the number of times the content can be moved, when the digital copy control descriptor for the content indicates that only one generation copy is possible, and the content And managing means for reducing the number of possible moves recorded by the recording control means.

  Generation means for generating content for one or more moves based on the content received by the reception means may be further provided. In this case, the recording control unit can further record the content for the movement generated by the generation unit.

  When a move is instructed, conversion means for converting the format of the content for the move generated based on the content can be further provided according to the move destination.

  When displaying a list of titles of content that can be moved, when the content can be moved, display control means for controlling the display of the list so as not to display the title of the content for the move can be further provided. .

  Further, the display control means can perform display so that a user can select a move of the content for the move when the title of the content is selected.

  When the content for the move is moveable, the display control means can continuously display the title of the content as the title of the moveable content even when the content is moved.

  The recording method according to one aspect of the present invention is a recording method for recording content broadcast by digital broadcasting, and a reception step of receiving a digital copy control descriptor described in a PMT transmitted by the digital broadcast together with the content And a recording control step for recording the content and recording the number of times the content can be moved when the digital copy control descriptor for the content indicates that only one generation copy is possible, and the content And a management step of reducing the number of possible moves recorded by the processing of the recording control step.

  According to another aspect of the present invention, there is provided a program for causing a computer to execute processing for recording content broadcasted by digital broadcasting, and a digital copy control descriptor described in the PMT transmitted by the digital broadcast together with the content. A receiving step for receiving, and a recording control step for recording the number of times the content can be moved while recording the content when the digital copy control descriptor for the content represents that only one generation copy is possible When the content is moved, the computer is caused to execute processing including a management step for reducing the number of times that can be moved recorded by the processing of the recording control step.

  In one aspect of the present invention, a digital copy control descriptor described in a PMT sent by digital broadcasting is received together with content, and the digital copy control descriptor for the content can be copied for only one generation. In this case, the content is recorded and the number of times the content can be moved is recorded. Also, when the content is moved, the number of times that the recorded move can be performed is reduced.

  ADVANTAGE OF THE INVENTION According to this invention, the freedom degree of the usage of a content can be raised more, preventing an unlimited number of copies being created.

It is a figure which shows the data structure of a digital copy control descriptor. 1 is a block diagram illustrating a configuration example of a recording apparatus to which the present invention is applied. It is a block diagram which shows the function structural example of a recording device. It is a figure which shows the example of a list. It is a figure which shows the other example of a list. It is a flowchart explaining the recording process of a recording device. 10 is a flowchart for explaining move / copy processing of the recording apparatus. It is a block diagram which shows the structural example of a move control part. It is a flowchart explaining the other recording processing of a recording device. 10 is a flowchart illustrating another move / copy process of the recording apparatus.

  FIG. 2 is a block diagram showing a configuration example of the recording apparatus 1 to which the present invention is applied.

  A CPU (Central Processing Unit) 11 receives a program stored in a ROM (Read Only Memory) 13 or a program loaded from a HDD (Hard Disk Drive) 25 to a RAM (Random Access Memory) 14 via a controller 12. And control the operation of each unit connected to the buses 15 and 24.

  For example, the CPU 11 uses the digital copy control descriptor (digital_copy_control_descriptor) described in the PMT (Program Map Table) of PSI (Program Specific Information) multiplexed in the transport stream to copy the received content “only one generation can be copied. When the content is recorded on the HDD 25 (hard disk in the HDD 25), the content for the move having the same content is generated based on the received content. The content is recorded on the HDD 25 together with the original content (received content).

  The content for the move is used when moving to another recording medium such as the optical disk 27 or the semiconductor memory 29 mounted on the recording apparatus 1.

  The tuner unit 17 receives and demodulates the broadcast signal from the antenna 16 under the control of the CPU 11, and outputs a transport stream broadcast on a predetermined channel to the descrambler 18 via the bus 15.

  The descrambler 18 generates a scramble key using data stored in the CAS card 20 inserted in the card I / F (Interface) 19 and scrambles the transport stream supplied from the tuner unit 17. Is released. The transport stream that has been descrambled by the descrambler 18 is supplied to the demultiplexer 21 via the bus 15, for example.

  The card I / F 19 supplies the data read from the CAS card 20 to the descrambler 18 via the bus 15.

  The demultiplexer 21 extracts a predetermined stream from the transport stream supplied from the descrambler 18 under the control of the CPU 11, and the packets constituting the extracted stream are placed on the bus 15, or the audio decoder 22, the video decoder To 23. The content made up of packets obtained by the demultiplexer 21 is supplied to the HDD 25 via the bus 15, the controller 12, and the bus 24, for example, and recorded.

  Further, the demultiplexer 21 outputs additional information such as PSI (Program Specific Information) / SI (Service Information) extracted from the transport stream to the CPU 11 via the bus 15 and the controller 12.

  The audio decoder 22 decodes the audio data (audio packet) supplied from the demultiplexer 21 and outputs the obtained audio data from an audio output terminal (not shown). The audio data output from the audio output terminal is received by, for example, a television receiver connected to the recording device 1, and sound corresponding to the audio data is output from the speaker.

  The video decoder 23 decodes the video data (video packet) supplied from the demultiplexer 21 and outputs the obtained video data from a video output terminal (not shown). The video data output from the video output terminal is received by, for example, a television receiver connected to the recording apparatus 1, and an image corresponding to the video data is displayed on the display.

  The video decoder 23 also has, for example, an OSD (On Screen Display) function for displaying a list of content titles recorded in the HDD 25, and video data generated by the OSD function is also transmitted to the TV via a video output terminal. Output to John receiver.

  The HDD 25 records content supplied via the bus 24. The content recorded on the HDD 25 is appropriately read according to control by the CPU 11 and used for reproduction, copying, moving, and the like.

  The optical disk drive 26 records the data supplied via the bus 24 on the optical disk 27 by driving the optical disk 27 loaded therein, and data (including a program) recorded on the optical disk 27. Is output on the bus 24. For example, when the destination of the content recorded on the HDD 25 is designated as the optical disc 27, the optical disc drive 26 records the content supplied from the HDD 25 via the bus 24 on the optical disc 27. Here, the optical disk 27 is, for example, a DVD (Digital Versatile Disc) or a Blu-ray Disk (trademark).

  The semiconductor memory I / F 28 records the data supplied via the bus 24 in the semiconductor memory 29 by driving the semiconductor memory 29 attached thereto, and the data recorded in the semiconductor memory 29. Is output on the bus 24. The semiconductor memory 29 is, for example, a Memory Stick (trademark), an SD card (trademark) or the like.

  The communication unit 30 communicates with an external device connected via, for example, an IEEE (Institute of Electrical and Electronics Engineers) 1394 cable, and outputs, for example, content supplied via the bus 24 to the external device. To do. The content recorded in the HDD 25 is also appropriately moved to an external device connected via the communication unit 30.

  FIG. 3 is a block diagram illustrating a functional configuration example of the recording apparatus 1. At least a part of the configuration shown in FIG. 3 is realized by the CPU 11 shown in FIG. 2 executing a predetermined program.

  The analysis unit 51 analyzes the PSI PMT (Program Map Table) supplied from the demultiplexer 21 and copies the content specified by the digital copy control descriptor (digital_copy_control_descriptor) (FIG. 1) described in the PMT. Get the generation limit.

  The content copy generation limit is specified by 2 bits of “digital_recording_control_data” (fourth line in FIG. 1) of the data constituting the digital copy control descriptor. When “digital_recording_control_data” is 00b, it indicates “copying is possible without constraint”, and when it is 10b, “only one generation can be copied”. If it is 11b, it indicates “copy prohibited”.

  In accordance with “digital_recording_control_data”, the analysis unit 51 displays information indicating that the received content is “copying possible without restriction”, “copying only for one generation”, or “copying prohibited” and the HDD recording control unit 52 and move Output to the content generation unit 53.

  The HDD recording control unit 52 receives the content including the video and audio packets supplied from the demultiplexer 21 and records the content on the HDD 25 according to the information supplied from the analysis unit 51 and the setting by the user. Control.

  For example, when the supplied content is “copyable only for one generation” and the user designates recording of the content in the HDD 25, the HDD recording control unit 52 is supplied from the demultiplexer 21. The original content (hereinafter referred to as “original content”) is recorded in the original content recording unit 55 of the HDD 25, and the move content (hereinafter referred to as “move content”) supplied from the move content generation unit 53 is recorded. ) Is recorded in the move content recording unit 56. In the case of recording the content “copyable only for one generation”, the move content is generated by the move content generation unit 53 separately from the original content.

  In addition, the HDD recording control unit 52, when the content supplied from the demultiplexer 21 is content that can be copied without restriction, and the user has set recording of the content in the HDD 25, the content Is recorded in the original content recording unit 55. Furthermore, if the received content is “copy prohibited” content, the HDD recording control unit 52 does not record it in the HDD 25. Processing when the content to be recorded is “contents that can be copied without restriction” and content that is “copy prohibited” is the same as the conventional recording processing based on “digital_recording_control_data”.

  The content recorded on the HDD 25 by the HDD recording control unit 52 is treated as having been “one generation” copied at that time. Therefore, when the recorded content is “only one generation can be copied”, CCI (Copy Control Information) indicating that copying after that is prohibited (move is possible) is added to the content. The The CCI is information relating to restrictions on copying of each content within the recording apparatus 1.

  When the information supplied from the analysis unit 51 indicates that the content supplied from the demultiplexer 21 is “contents that can be copied only for one generation”, the move content generation unit 53 performs recording setting management. The moving content in the format specified by the setting information supplied from the unit 54 is generated, and the generated moving content is output to the HDD recording control unit 52.

  For example, when the original content is MPEG (Moving Picture Experts Group) 2 format content, the move content generation unit 53 generates content in various formats such as MPEG4 format content different from the original content as the move content ( Format conversion). The content for moving in the MPEG4 format is used when moving to the semiconductor memory 29, for example.

  For example, if the broadcast received by the recording device 1 is an HD (High Definition) broadcast, down-converting to SD (Standard Definition) and recording MPEG4 content having a format different from that of the original content as content for moving, It is possible to prevent the recording capacity of the HDD 25 from being compressed as compared to recording the original content as the move content as it is.

  Of course, content having the same format as the original content may be recorded as the moving content.

  Also, the move content generation unit 53 may generate a plurality of move content in accordance with the setting information supplied from the recording setting management unit 54.

  For example, the recording setting management unit 54 outputs setting information representing settings related to recording of content set by the user to the moving content generation unit 53. This setting information includes, for example, information that specifies the format of the moving content, information that specifies the number of moving content to be generated, and the like. The setting by the user is performed using a remote controller (not shown) that controls the recording apparatus 1 or a button provided on the surface of the casing of the recording apparatus 1.

  The original content recording unit 55 of the HDD 25 records the original content supplied from the HDD recording control unit 52, and the moving content recording unit 56 records the moving content. The original content recorded in the original content recording unit 55 and the move content recorded in the move content recording unit 56 are appropriately read out by the move control unit 57 and used for moving to the optical disc 27 and the semiconductor memory 29.

  Thus, the original content itself is also used for the move as appropriate. The original content is also used for reproducing content from the HDD 25. When reproduction is instructed, the original content is read from the HDD 25 and decoded by the audio decoder 22 and the video decoder 23.

  For example, when the user instructs to move the original content recorded in the original content recording unit 55, the move control unit 57 controls the optical disc drive 26 to move the original content to the optical disc 27. That is, the move control unit 57 deletes or invalidates all the original contents recorded in the original content recording unit 55 when all the moves are completed while erasing or invalidating the original content part after the move. And move it by making it unusable.

  The move control unit 57 controls the optical disc drive 26 to move the moving content on the optical disc 27 when the user gives an instruction to move the moving content recorded in the moving content recording unit 56. .

  The list display unit 58 refers to the content recorded in the original content recording unit 55 and the moving content recording unit 56, and displays a list of contents that can be moved on an external display using the OSD function of the video decoder 23. Let From this list, the user can select the content to be moved.

  FIG. 4 is a diagram illustrating an example of a list displayed by the list display unit 58.

  As shown in FIG. 4, the list displays a list of content titles recorded in the original content recording unit 55. In the example of FIG. 4, programs # 1 to # 5 are displayed as titles of contents that can be operated (including moves) by the user.

  In the example of FIG. 4, as indicated by the tip of the dotted arrow, programs # 2 and # 4 among the programs # 1 to # 5 are contents of “copying only for one generation”, It is shown that the content for use is also recorded on the HDD 25.

  As described above, the list display unit 58 displays only one title for the content having the moving content in addition to the original content, and does not display the title of the moving content.

  If a certain content, that is, a moving content in addition to the original content is also recorded on the HDD 25, when each title, that is, two identical titles are displayed on the list, the user selects which title. There is a risk of wondering whether or not to do so, but such a fear is eliminated by displaying only one title in this way.

  In addition, when two identical titles are displayed, the content copyright holder is given an impression that a copy has been created in spite of the fact that the content can be copied only for one generation. Although there is a concern that it may be created, it is possible to prevent giving such a fear to the copyright holder.

  When such a list is displayed, for example, when the user selects a title of a predetermined program by moving the cursor, the content of the title is played from the HDD 25, moved, copied, etc. As described above, a menu of selectable operation details is displayed according to each content.

  For example, when the program # 1 that is the content of “Copyable without restriction conditions” is selected, a menu that allows the user to select the operation content from “Play” and “Copy” is displayed. The user can operate the original content of the title of program # 1 from the menu.

  Also, for example, when the program # 2 which is the content of “Copy only for one generation” is selected, “Play (original content)”, “Move original content”, “Move content for move” A menu for selecting the operation content from the inside is displayed. The user can operate the original content of the title of program # 2 or the content for the move from the menu.

  When the original content and the move content are recorded, “move the original content” and “move the move content” are not displayed separately as the operation contents, but simply “move” "" Is displayed, and when it is selected, the moving content may be automatically moved. Thus, the user or the copyright holder does not have to be aware of the existence of the moving content.

  Thus, for example, when the user selects “move original content” from the menu displayed when the title of program # 2 is selected, it is recorded in the original content recording unit 55 by the move control unit 57. The original content is moved. On the other hand, when the user selects “move move content”, the move control unit 57 moves the move content recorded in the move content recording unit 56.

  FIG. 5 is a diagram illustrating an example of the display of the list after the move.

  When content “original content can be copied only” (original content) is moved to the optical disc 27 or the like, the content cannot be used from the HDD 25, so the list of content titles that can be moved is moved. The content title is not displayed.

  In the example of FIG. 5, programs # 2 and # 3 are contents of “only one generation can be copied”. The display of a list when these two original contents are moved will be described.

  For example, program # 3 is content in which the moving content is not recorded in the HDD 25 (content in which only the original content is recorded), and when it is moved, as shown in FIG. Program # 3 is erased from the displayed list.

  On the other hand, although the content is “copyable only for one generation”, which is the same as the program # 3, since the content for the move of the program # 2 is recorded in the HDD 25, the list display unit 58 is provided even after the move. Program # 2 is not deleted from the list displayed by the above, and the display is continued. Therefore, the user can move the moving content of program # 2 from the menu displayed when program # 2 is selected.

  In this way, even if the original content is moved, if there is still content for the move, the content for the move is "upgraded" on the display of the list, so that it can be displayed in the list. Can operate the moving content in the same manner as the original content without being aware of the difference between the original content and the moving content.

  In addition, when the original content and the moving content are recorded instead of upgrading the moving content, even if the moving content remains in the HDD 25, the moving content is recorded. May be disabled.

  Next, the operation of the recording apparatus 1 having the above configuration will be described.

  First, the recording process of the recording apparatus 1 will be described with reference to the flowchart of FIG.

  In this process, for example, the transport stream received by the tuner unit 17 is descrambled by the descrambler 18, and predetermined content (video, audio packet) and PMT are demultiplexed from the descrambled transport stream 21. This is done when extracted by. In the example of FIG. 6, it is assumed that the user has previously performed a content recording operation on the HDD 25.

  In step S1, the analysis unit 51 analyzes the PSI PMT supplied from the demultiplexer 21 and determines whether there is a digital copy control descriptor.

  If it is determined in step S1 that there is no digital copy control descriptor, normal recording processing of content on the HDD 25 is performed in step S2. When there is no digital copy control descriptor, information indicating that there is no digital copy control descriptor is supplied from the analysis unit 51 to the HDD recording control unit 52, and the HDD recording control unit 52 indicates that “copying is possible without restriction conditions”. The content is recorded in the original content recording unit 55 of the HDD 25. Thereafter, the process is terminated.

  On the other hand, if it is determined in step S1 that there is a digital copy control descriptor, the analysis unit 51 proceeds to step S3 and determines the value of “digital_recording_control_data”.

  In step S3, when the analysis unit 51 determines that the value of “digital_recording_control_data” is 00b, that is, the received content is content that can be “copied without restriction”, the process proceeds to step S2, and the normal content is recorded. Perform the recording process. Also at this time, as in the case where there is no digital copy control descriptor, the original content “copied without restriction” is recorded in the original content recording unit 55.

  In step S3, the analysis unit 51 determines that the value of “digital_recording_control_data” is 11b, that is, if the received content is “copy prohibited” content, or if it is determined to be 01b. In step S4, recording on the HDD 25 is not performed. In this case, it is only possible to reproduce the content in real time, and then the process is terminated.

  On the other hand, when the analysis unit 51 determines in step S3 that the value of “digital_recording_control_data” is 10b, that is, the received content is “contents that can be copied only for one generation”, the process proceeds to step S5. Information indicating that the supplied content is “copyable only for one generation” is output from the analysis unit 51 to the HDD recording control unit 52 and the move content generation unit 53.

  In step S5, the move content generation unit 53 records the move content on the HDD 25 in addition to the original content based on the setting information supplied from the recording setting management unit 54 (records a plurality of contents). Is determined by the user, and if it is determined that it is not specified, the process proceeds to step S2. At this time, normal recording processing is performed, and the received content of “copying only for one generation” is added with CCI indicating that subsequent copying is prohibited (move is possible), and the original content recording unit 55 To be recorded.

  On the other hand, if the move content generation unit 53 determines in step S5 that the user has designated recording of the move content in addition to the original content, the process proceeds to step S6. Whether it is designated or not is determined based on the setting information.

  If the move content generation unit 53 determines in step S6 that the move destination is specified, the process proceeds to step S7.

  In step S 7, the HDD recording control unit 52 simultaneously records the original content and the format and the number of moving contents specified by the user.

  That is, the move content generation unit 53 generates the number of move contents specified by the user in a format corresponding to the move destination specified by the user, and outputs it to the HDD recording control unit 52. In addition, the HDD recording control unit 52 causes the original content recording unit 55 to record the original content, and causes the moving content recording unit 56 to record the moving content supplied from the moving content generation unit 53. Thereafter, the process is terminated.

  On the other hand, if it is determined in step S6 that the move destination has not been designated, the process proceeds to step S8, where the recording of the original content, the recording of the predetermined format, and the predetermined number of moving contents are performed by HDD recording control. Performed simultaneously by the unit 52.

  That is, the move content generation unit 53 generates one move content in the same format as the original content, for example, and outputs it to the HDD recording control unit 52. In addition, the HDD recording control unit 52 causes the original content recording unit 55 to record the original content, and causes the moving content recording unit 56 to record one piece of moving content supplied from the moving content generation unit 53. Thereafter, the process is terminated.

  Next, the move / copy process of the recording apparatus 1 will be described with reference to the flowchart of FIG.

  In step S21, the move control unit 57 receives a user operation on the list displayed by the list display unit 58, proceeds to step S22, and determines the CCI setting of the content whose title is selected by the user.

  Among the contents recorded in the original content recording unit 55, CCI indicating that copy is free is added to the content that can be copied without restriction conditions, and “only one generation can be copied”. A CCI indicating that copying after that is prohibited is added to the content.

  If it is determined in step S22 that the CCI setting of the content is copy free, the move control unit 57 proceeds to step S23 and performs normal copy processing. Here, for example, according to the operation content selected by the user, the content recorded in the original content recording unit 55 is copied to the optical disc 27 and the semiconductor memory 29, or the external device is connected via the communication unit 30. Copy to is done. Thereafter, the process is terminated.

  On the other hand, if it is determined in step S22 that the CCI setting of the content whose title is selected by the user is copy-prohibited, the move control unit 57 proceeds to step S24 and moves the content whose title is selected by the user. It is determined whether or not the content is recorded in the move content recording unit 56.

  In step S24, if the move control unit 57 determines that the move content is not recorded in the move content recording unit 56, the move control unit 57 proceeds to step S25 and performs a normal move process. That is, the move control unit 57 erases or invalidates the original content portion after the move, and erases or invalidates all the original content recorded in the original content recording unit 55 when all the moves are completed. The content selected by the user is moved by making it unusable. Thereafter, the process is terminated.

  Note that the content that has been moved here (original content) has no moving content, and thereafter, the title of the content is not displayed in the list of contents that can be moved.

  If the move control unit 57 determines in step S24 that the move content is recorded in the move content recording unit 56, the move control unit 57 proceeds to step S26, and whether the format of the move destination matches the format of the move content. Determine whether or not. The move destination is selected by the user from a menu displayed when the title of the content is selected on the list, for example.

  For example, when the optical disc 27 is designated as the move destination, the move control unit 57 determines whether the format of the content for the move is the MPEG2 format, and the semiconductor memory 29 is designated as the move destination. In this case, it is determined whether or not the format of the moving content is MPEG4 format.

  If the move control unit 57 determines in step S26 that the format of the move destination matches the format of the move content, the move control unit 57 proceeds to step S27 and performs a move process using the move content.

  On the other hand, if the move control unit 57 determines in step S26 that the format of the move destination and the format of the move content do not match, the move control unit 57 proceeds to step S28 and requests the user to select the move content. Here, for example, a list of a plurality of move contents having different formats recorded in the move content recording unit 56 is displayed, and the user can select from the list.

  Instead of recording a plurality of moving contents having different formats, the moving contents in a predetermined format are recorded, and the moving contents format is selected in response to the user selecting a moving destination format. The content for the move after the format conversion may be moved.

  In step S29, the move control unit 57 determines whether or not a move content having a format that matches the format of the move destination has been selected. If it is determined that the content has been selected, the process proceeds to step S27, and the selected format is selected. Move content for move. If the move control unit 57 determines in step S29 that there is no selection by the user, the move control unit 57 ends the process.

  As described above, the moving / copying of the content recorded on the HDD 25 is performed based on the CCI set for the content.

  Through the series of recording processes and move / copy processes described above, the user can handle the content relatively freely within a range in which restrictions are made to prevent unlimited copies from being created.

  For example, content for moving according to the format of the optical disk 27 and the semiconductor memory 29 is generated, and each removable medium is moved at a predetermined timing, so that one of the optical disks 27 is attached to a predetermined player. Thus, various usages such as viewing the content on a large screen and viewing the content outdoors by attaching the semiconductor memory 29 to the mobile phone can be realized. Of course, since the original content remains in the HDD 25, the user can also reproduce the original content from the HDD 25 and view it using the television receiver connected to the recording apparatus 1.

  In addition, since the user can perform the move at a predetermined timing, it is not necessary to specify the move destination in advance before recording the original content, and the range of media selections can be widened.

  Furthermore, in this way, although there is a degree of freedom in how to use the content, unlimited copies are not created.

  In the above, for example, even if the content is “copyable only for one generation”, it is possible to move multiple times by recording the content for movement in the HDD 25, but the content for movement is generated. Instead, a move counter that counts the number of times that the original content can be moved may be set, and multiple moves may be performed within the range of the value of the move counter.

  That is, in this case, the content recorded in the HDD 25 is only the original content, and when the move is instructed, one copy generated from the original content is used as the move content, and the move content is moved. At this time, the format of the content for the move is converted according to the format of the move destination, and the value of the move counter is decremented by 1 when the move is completed.

  This also increases the degree of freedom in how to use the content while preventing unlimited copies from being created.

  FIG. 8 is a block diagram showing a configuration example of the move control unit 57 when the number of moves is managed by the value of the move counter as described above.

  The move counter management unit 71 manages the value of the move counter. The format conversion unit 72 generates content for moving, which is a copy of the original content, in accordance with the move destination, and moves the content after format conversion obtained by appropriately converting the format of the generated moving content.

  Next, the operation of the recording apparatus 1 when the number of moves is managed by the value of the move counter will be described.

  First, the recording process of the recording apparatus 1 will be described with reference to the flowchart of FIG.

  The processes in steps S41 to S44 are the same as the processes in steps S1 to S4 in FIG.

  That is, in step S41, it is determined whether there is a digital copy control descriptor. If it is determined that there is no digital copy control descriptor, the process proceeds to step S42, and normal recording processing is performed. In this case, the supplied content is recorded in the original content recording unit 55 of the HDD 25 as “copying possible without restriction conditions”, and the processing is then terminated.

  On the other hand, if it is determined in step S41 that there is a digital copy control descriptor, the process proceeds to step S43, and the value of “digital_recording_control_data” is determined.

  If it is determined in step S43 that the value of “digital_recording_control_data” is 00b (content that can be copied without restriction), the process proceeds to step S42, where normal recording processing is performed, while “digital_recording_control_data” If it is determined that the value is 11b (content of “copy prohibited”) or 01b, the process proceeds to step S44, and recording to the HDD 25 is not performed. In step S44, it is only possible to reproduce the content in real time, and then the process is terminated.

  If it is determined in step S43 that the value of “digital_recording_control_data” is 10b (content that can be copied only for one generation), the process proceeds to step S45.

  In step S45, the HDD recording control unit 52 determines whether or not it is specified by the user to enable a plurality of moves. If it is determined that the user does not specify, the process proceeds to step S42. In step S42, a normal recording process, that is, a process of recording the supplied content in the original content recording unit 55 is performed. At this time, the CCI is set so as to indicate that the move is prohibited.

  On the other hand, if the HDD recording control unit 52 determines in step S45 that the user has designated that multiple movements are possible, the process proceeds to step S46, and the content is recorded in the original content recording unit 55 of the HDD 25. And move counter is recorded. In the move counter recorded here, for example, a value indicating that the move can be performed the number of times set by the user is set. The set value of the move counter is updated (decreased) by the move counter management unit 71 for each move.

  Next, the move / copy process of the recording apparatus 1 will be described with reference to the flowchart of FIG.

  The processes in steps S51 to S53 are the same as the processes in steps S21 to S23 in FIG.

  In step S51, for example, an operation performed by the user on the list of contents that can be moved is accepted, the process proceeds to step S52, and the CCI setting of the content selected by the user is determined.

  If it is determined in step S52 that the CCI setting of the content selected by the user represents copy free, the process proceeds to step S53, and normal copy processing is performed. Here, for example, the content recorded in the original content recording unit 55 is copied to the optical disc 27 and the semiconductor memory 29 according to the operation content selected by the user. Thereafter, the process is terminated.

  On the other hand, if it is determined in step S52 that the CCI setting of the content whose title is selected by the user is copy-prohibited, the process proceeds to step S54.

  In step S54, the move counter management unit 71 of the move control unit 57 determines the value of the move counter, and if it is determined that the value is 1, that is, the remaining one move is possible, the process proceeds to step S55. The normal move process is performed. For example, the move control unit 57 moves the content recorded in the original content recording unit 55 and makes the content unusable from the HDD 25 when all the moves are completed. At this time, the record of the move counter itself is erased. Thereafter, the process is terminated.

  On the other hand, when the move counter management unit 71 of the move control unit 57 determines in step S54 that the value of the move counter is 2 or more, the process proceeds to step S56.

  In step S56, the move control unit 57 generates one copy of the content recorded in the original content recording unit 55 as the move content, and whether or not the format of the move destination matches the format of the generated move content. Determine whether.

  If the move control unit 57 determines in step S56 that the format of the move destination matches the format of the move content, the move control unit 57 proceeds to step S57, performs a move process using the move content, and moves counter management unit. In step 71, the value of the move counter is decreased by one. Thereafter, the process is terminated.

  If it is determined in step S56 that the format of the move destination does not match the format of the move content, the move control unit 57 proceeds to step S58 and requests the user to select the move content.

  In step S59, the move control unit 57 determines whether or not a format that matches the format of the move destination is selected. If it is determined that the format is selected, the process proceeds to step S57.

  In step S57, the move control unit 57 converts the format of the move content generated from the original content by the format conversion unit 72, and moves the converted move content. At this time, the move control unit 57 causes the move counter management unit 71 to decrease the value of the move counter by one.

  On the other hand, if the move control unit 57 determines in step S59 that there is no selection by the user, the move control unit 57 ends the process.

  Even with the above processing, it is possible to increase the degree of freedom of how to use the content while preventing unlimited copies. In addition, it is possible to prevent the recording capacity of the HDD 25 from being compressed as compared with the case where a moving content is generated separately from the original content and recorded.

  In the process of FIG. 9, it is assumed that no moving content is generated when original content is recorded. However, only one moving content is generated, and the number of possible moves is set by the move counter. You may do it.

  The series of processes described above can be executed by hardware, but can also be executed by software.

  When a series of processing is executed by software, a program constituting the software may execute various functions by installing a computer incorporated in dedicated hardware or various programs. For example, it is installed from a network or a recording medium into a general-purpose personal computer or the like.

  As shown in FIG. 2, this recording medium is not only composed of a package medium made up of an optical disk 27, a semiconductor memory 29, or the like distributed to provide a program to the user, separately from the apparatus main body. The program is provided with a ROM 13 in which a program is recorded, a hard disk included in the HDD 25, and the like provided to the user in a state of being pre-installed in the apparatus main body.

  In the present specification, each step includes not only processing performed in time series according to the described order but also processing executed in parallel or individually, although not necessarily performed in time series.

  DESCRIPTION OF SYMBOLS 1 Recording device, 11 CPU, 25 HDD, 26 Optical disk drive, 27 Optical disk, 28 Semiconductor memory I / F, 29 Semiconductor memory, 51 Analysis part, 52 HDD recording control part, 53 Move production | generation part, 54 Recording setting management part , 55 Original content recording unit, 56 Move content recording unit, 57 Move control unit, 58 List display unit, 71 Move counter management unit, 72 Format conversion unit

Claims (8)

In a recording apparatus for recording content broadcast by digital broadcasting,
Receiving means for receiving a digital copy control descriptor described in the PMT sent by the digital broadcast together with the content;
When the digital copy control descriptor for the content indicates that only one generation copy is possible, the recording control means for recording the content and recording the number of times the content can be moved;
A recording device comprising: management means for reducing the number of possible moves recorded by the recording control means when the content is moved. Further comprising generating means for generating content for one or more moves based on the content received by the receiving means;
The recording apparatus according to claim 1, wherein the recording control unit further records the content for the movement generated by the generation unit. The recording apparatus according to claim 2, further comprising a conversion unit that converts a format of the content for the move generated based on the content according to a move destination when a move is instructed. The display control means for controlling the display of the list so that the title of the content for the move is not displayed when the list of the title of the content that can be moved is displayed when the content is moveable. The recording device described in 1. The recording apparatus according to claim 4, wherein the display control unit further performs display so that a user can select a move of the content for the move when a title of the content is selected. 5. The display control unit continuously displays the title of the content as the title of the moveable content even when the content is moved when the content for the move is moveable. Recording device. In a recording method for recording content broadcast by digital broadcasting,
A receiving step of receiving a digital copy control descriptor described in the PMT sent in the digital broadcast together with the content;
When the digital copy control descriptor for the content indicates that only one generation can be copied, a recording control step for recording the content and recording the number of times the content can be moved;
A management step of reducing the number of possible moves recorded by the processing of the recording control step when the content is moved. In a program for causing a computer to execute processing for recording content broadcast by digital broadcasting,
A receiving step of receiving a digital copy control descriptor described in the PMT sent in the digital broadcast together with the content;
When the digital copy control descriptor for the content indicates that only one generation can be copied, a recording control step for recording the content and recording the number of times the content can be moved;
A program for causing a computer to execute a process including a management step of reducing the number of possible moves recorded by the process of the recording control step when the content is moved.

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