JP2008041137A - Content recording/reproducing device and recording/reproducing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure the recordable capacity of a recording medium by preventing a content from being erased before viewing without requiring users to confirm mutually whether the content may be deleted or not in advance. <P>SOLUTION: In the content recording/reproducing device, when the content is recorded in a recording medium, a recording medium control means records viewing user information specifying a viewing user of the content including content information through a display means and an operating means, when reproduction is performed, the means updates and records the content information based on viewing user information specified by the operating means and its viewing history information, when it is erased, the means executes determines whether to permit erasure based on the content information, when it is determined to be permitted, the means erases the content, when it is determined not to be permitted, the means displays warning based on the content information on the display means. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a content recording / reproducing apparatus and a recording / reproducing method, and more particularly, to a DVD (digital versatile disc) incorporating a large-capacity recording medium such as flash memory or HDD (hard disk drive) or rewritable. The present invention relates to a content recording / reproducing apparatus having a drive (drive circuit) that uses a large-capacity recording medium such as a disk for recording and reproduction.

  2. Description of the Related Art There are devices that use a large-capacity storage medium such as a memory recorder, HDD recorder, and DVD recorder as content recording / playback apparatuses that record and playback AV (audio / visual) content such as movies and music. For example, in an HDD recorder, a viewer schedules and records content such as a movie or a television program on the HDD, plays back the recorded content, and displays it on a display device or the like for viewing. Since many contents can be recorded on the HDD recorder for a long time, the viewer can enjoy abundant contents reproduction.

  Storage media used in devices such as HDD recorders have a limited upper limit even if they have a large capacity, so if you do not delete the recorded content as necessary, the capacity of the storage medium will be insufficient. There is a problem that new contents cannot be recorded. When deleting the recorded content, the user must select the content to be deleted, so that the content to be deleted and the content to be left in the HDD must be selected, which is a complicated operation for the user. There is a problem of becoming.

  Conventionally, when content is recorded on a recording medium, record erasability information indicating whether recording erasure from the recording medium is possible is generated, and various contents are recorded on a large-capacity recording medium In some cases, important contents are not deleted by mistake (Patent Document 1).

  Conventionally, there is a method for calculating information that serves as an index for erasing content, such as the frequency of reproduction of recorded content, and prompting the user to efficiently select content to be erased from the hard disk. Yes (Patent Document 2).

JP 2001-331372 A (FIG. 1) JP 2002-268923 A (FIG. 1)

  However, since the content deleted from the HDD cannot be played back, if a certain user plays back and views a content once and then deletes it, other users can play back the content and watch it again. The problem that it is not possible arises. Even when multiple users use one HDD recorder in the same home, if the users do not confirm whether or not a certain content can be deleted, the content is deleted without viewing. Problem arises. Further, if the content is not deleted, there is a problem that the capacity of the HDD for newly recording is insufficient.

  The present invention has been made to solve the above-described problems of the prior art, and its purpose is to delete certain contents even when a plurality of users use the content recording / playback apparatus. A content recording / reproducing apparatus capable of preventing the content from being deleted without viewing even if the users do not confirm each other again, and ensuring the recordable capacity of the recording medium To provide a recording / reproducing method.

  The content recording / reproducing apparatus of the present invention records content and content information on a recording medium, or reproduces content and content information from the recording medium, and connects to the recording medium control unit to connect the content and content. A display means for displaying information to a user; and an operation means for detecting an operation from the user by connecting to the recording medium control means. When recording content on the recording medium, the recording medium control means displays the display means. In addition, when the content information includes the viewing user information for designating the viewing user of the content via the operation means, the recording medium control means is specified by the operation means when the content is reproduced from the recording medium. Update content information based on viewing user information and viewing history information When the recording process is executed and the content is deleted from the recording medium, the recording medium control unit executes a process for determining whether or not the deletion is possible based on the content information, and when determining that the deletion is possible, the process for deleting the content If it is determined that the deletion is rejected, a process of displaying a warning based on the content information on the display means is executed.

  Preferably, in the content recording / playback apparatus of the present invention, when the recording medium control unit records content on the recording medium, a plurality of viewing users are specified when the plurality of viewing users are specified via the display unit and the operation unit. A process of recording information included in the content information is executed.

  More preferably, in the content recording / reproducing apparatus of the present invention, when the recording medium control means reproduces content from the recording medium, the viewing user information specified by the operation means includes a plurality of viewing user information included in the content information. If the content information matches one of the above, the content information is updated and recorded based on the viewing user information and the viewing history information.

  Preferably, in the content recording / reproducing apparatus of the present invention, when the recording medium control unit deletes the content from the recording medium, it determines whether or not to delete based on the plurality of viewing user information and the viewing history information included in the content information. When a plurality of viewing users of a predetermined ratio or more have finished viewing the content for a predetermined ratio or more, it is determined that deletion is possible, or otherwise, it is determined that deletion is not possible.

  More preferably, in the content recording / playback apparatus of the present invention, when the recording medium control unit determines that the content is to be deleted or not when the content is deleted from the recording medium, the predetermined condition is still selected among the plurality of viewing users. Specified by the operation means when the recording medium control means reproduces the content from the recording medium by executing the process of updating and recording the content information based on the specific viewing user information and the viewing history information less than If the viewing user information matches the specific viewing user information that still does not satisfy the predetermined condition included in the content information, processing for displaying a warning based on the content information on the display means is executed.

  Preferably, in the content recording / reproducing apparatus of the present invention, when the recording medium control unit completes reproduction of the content from the recording medium, the display unit displays a display screen for inputting deletion permission / prohibition information by the operation unit. Is executed, and the deletion permission / prohibition information input by the operation means is included in the content information and updated and recorded.

  More preferably, in the content recording / playback apparatus of the present invention, when the recording medium control means deletes the content from the recording medium, the deletion / non-permission based on the plurality of viewing user information included in the content information and each deletion permission / inhibition information The process of determining whether or not deletion is possible is determined when a plurality of viewing users of a predetermined ratio or more input that deletion is possible, or in other cases, it is determined that deletion is not possible.

  More preferably, in the content recording / playback apparatus of the present invention, when the recording medium control unit determines that the content is to be deleted or not when deleting the content from the recording medium, the content recording / playback device can still delete the content among the plurality of viewing users. When the content information is updated and recorded based on the specific viewing user information that is not input, and the content is played back from the recording medium, the viewing user information specified by the operation means is included in the content information. If it matches the specific viewing user information that has not yet been entered as deleteable, a process for displaying a warning based on the content information on the display means is executed.

  The content information recording / reproducing method of the present invention is a content information recording / reproducing method for recording content and content information on a recording medium, or reproducing content and content information from a recording medium. When recording, the step of recording the viewing user information for specifying the viewing user of the content via the display means and the operating means in the content information and recording the content from the recording medium are specified by the operating means. The step of updating and recording the content information based on the viewing user information and the viewing history information, the step of determining whether or not to delete based on the content information when deleting the content from the recording medium, and determining that the deletion is possible If you want to delete the content, If you Dan and displaying on display means a warning based on the content information.

  The operation of the present invention will be described below.

  The content recording / reproducing apparatus of the present invention records content and content information on a recording medium, or reproduces content and content information from the recording medium, and connects to the recording medium control unit to connect the content and content. Display means for displaying information to the user, and operation means for detecting an operation from the user connected to the recording medium control means.

  When recording content on the recording medium, the recording medium control means executes processing for recording content user information including viewing user information for designating a viewing user of the content via the display means and the operation means. The recording medium control means executes processing for updating and recording the content information based on the viewing user information specified by the operation means and the viewing history information when reproducing the content from the recording medium. Note that the content information includes at least viewing user information and viewing history information, and the process of updating and recording the content information may be based on deletion permission / prohibition information input by the operation unit.

  Then, when deleting the content from the recording medium, the recording medium control means executes a process of determining whether or not to delete based on the plurality of viewing user information and the viewing history information included in the content information, and a predetermined ratio or more It is determined that the content can be deleted if there are multiple viewers who have finished watching the content more than a predetermined percentage, or if there is deleteability information indicating that the content can be deleted. Otherwise, it is determined that the content cannot be deleted. . Furthermore, when it is determined that the content is not to be deleted, a process of updating and recording the content information based on specific viewing user information that does not satisfy the predetermined condition and viewing history information among a plurality of viewing users. And when the recording medium control means reproduces the content from the recording medium, the viewing user information specified by the operation means matches the specific viewing user information still included in the content information that does not satisfy the predetermined condition. In this case, a process for displaying a warning based on the content information on the display means is executed.

  For example, when recording content X on a recording medium, when specifying a plurality of viewing users A, B, and C who view the content X via a display and a remote controller, the recording medium control means includes a plurality of viewing users. Information a, b, c is included in the content information and recorded. When the viewing user A reproduces the content X, the viewing user information a specified by the remote controller is the same as (a) of the plurality of viewing user information (a, b, c) included in the content information. Therefore, the recording medium control means updates and records the content information based on the viewing user information (a) and the viewing history information (a ′: viewing user A viewed this content X). Then, when deleting the content X from the recording medium, a process of determining whether or not to delete can be performed based on a plurality of viewing user information (a, b, c) and viewing history information (a ′) included in the content information To do.

  Here, when a plurality of viewing users (for example, all viewing users A, B, and C) who have exceeded a predetermined ratio have finished viewing the content X by a predetermined ratio (for example, 80% of the content length). It is determined that it can be deleted, or otherwise, it is determined that the deletion is not possible. Therefore, the content recording / playback apparatus determines that the deletion is not permitted unless only the viewing user A has completed viewing, so the content X that has not yet been viewed by the viewing users B and C is not deleted. When all viewing users B and C view the content X, viewing history information (b ′, c ′) is further recorded in the content information by viewing user information (b, c) specified by the remote controller. Then, the content recording / playback apparatus determines that the content X can be deleted. As a result, even if all the viewing users A, B, and C do not confirm again whether or not the content X may be deleted, the content X is not deleted without being viewed.

  Further, when it is determined that the content X is to be deleted, for example, if the viewing user B has not yet finished viewing, and the viewing user B tries to play back any content again, the remote controller Based on the specified viewing user information (b), a warning “viewing user B has not yet finished viewing content X” can be displayed on the display, and viewer B is encouraged to view content X. be able to. Similarly, the viewing user C who has not yet finished viewing can be prompted to view the content X. As a result, if all of the viewing users A, B, and C finish viewing the content X, the content recording / playback apparatus Since the content X is deleted, it is possible to easily secure the recordable capacity of the recording medium.

  Even when a plurality of users use the content recording / playback apparatus, the content recording / playback apparatus of the present invention does not have to confirm again whether or not a certain content can be deleted. It is possible to prevent the recording medium from being deleted without viewing and to easily secure the recordable capacity of the recording medium.

  The content recording / playback apparatus of the present invention prevents the content from being deleted without viewing even if the users do not have to confirm again whether or not the content can be deleted. When recording content on a recording medium, the recording medium control means converts the viewing user information for designating the viewing user of the content via the display means and the operation means into the content information. In the case where the recording process is executed and the content is reproduced from the recording medium, the recording medium control unit updates and records the content information based on the viewing user information specified by the operation unit and the viewing history information. When the processing is executed and the content is deleted from the recording medium, the recording medium control means The process for determining whether or not deletion is possible is executed based on the content, the process for deleting the content is executed when it is determined that the deletion is possible, and the process for displaying the warning based on the content information on the display means when it is determined that the deletion is not possible. It was realized by doing.

  Hereinafter, a content recording / reproducing apparatus and a recording / reproducing method according to preferred embodiments of the present invention will be described, but the present invention is not limited to these embodiments.

  FIG. 1 is a diagram for explaining a content recording / playback apparatus, that is, an HDD recorder 1 according to a preferred embodiment of the present invention. The HDD recorder 1 includes a CPU (Central Processing Unit) 10 that controls the entire HDD recorder 1 and each component, and an HDD (Hard Disk Drive) 12 that includes a magnetic disk 11 as a recording medium. is doing. In the HDD 12, AV (audio / visual) content is recorded and reproduced as compressed data in many cases. The HDD recorder 1 is connected to a monitor 2 for reproducing video and audio. The HDD recorder 1 is remotely operated by a remote controller 3 operated by a user.

  Specifically, a recording / reproduction control circuit 13 including processing such as encoding / decoding of a video signal and an audio signal is connected to the HDD 12 of the HDD recorder 1, and the video signal and the audio signal are connected to the recording / reproduction control circuit 13. The input / output control circuit 14 is connected. For example, the input / output control circuit 14 connects the video signal and the audio signal in the transmission signal format in which the video signal and the audio signal are multiplexed such as HDMI (High-Definition Multimedia Interface). The video signal and audio signal input from the input terminal 15 are input to the recording / playback control circuit 13, and the video signal and audio signal output to the HDMI output terminal 16 are output to the monitor 2 described later. Of course, the recording / playback control circuit 13 and the input / output control circuit 14 can be selected and used as appropriate according to the format of the recording data recorded in the HDD 12 and the format of the video signal and audio signal input / output to / from the HDD recorder 1. It is.

  The CPU 10 of the HDD recorder 1 displays an operation circuit 17 including a switch operated by the user, a remote control signal receiving circuit 18 that receives a transmission control signal from the remote controller 3, and a display signal output by the CPU 10. And a display circuit 19 including a display circuit. The transmission control signal from the remote controller 3 may be a wireless system using infrared rays or radio waves, or may be transmitted and received by a wired system connected to the remote control signal receiving circuit 18 by wire. The remote controller 3 includes a CPU 30 that controls the remote controller 3, a remote control signal transmission circuit 31 that is connected to the CPU 30, and a plurality of operation keys 32 that are connected to the CPU 30.

  The multiplexed video signal and audio signal output from the HDD recorder 1 are input to the HDMI input terminal 20 of the monitor 2, and converted into the video signal V and the audio signal L / R by the decoding circuit 21. The video signal V is converted into video on the display 22, and the audio signal L / R is converted into audio on the speakers 23 and 24. Therefore, the content recorded and reproduced by the HDD recorder 1 is provided so that the user can view it. Further, the user operates the HDD recorder 1 through an operation screen displayed on the display circuit 19 of the HDD recorder 1 or the display 22 of the monitor 2 and the operation circuit 17 or the remote controller 3.

  FIG. 2A is a flowchart for explaining the content recording reservation operation of the HDD recorder 1. The CPU 10 of the HDD recorder 1 is provided with a user interface for designating a user to view at the time of recording reservation for making a reservation for recording content such as a movie (S101). The CPU 10 first designates the recorded content at the time of recording reservation (S102), and performs reservation processing (S103). In this case, the user designates a designated user who views the content (S104), and the CPU 10 records the information of the designated user included in the content information (S105). FIG. 2B is an example of a database for registering a designated user (hereinafter referred to as a content information database). In the content X1 to be reserved for recording, users A, B, and C are registered as designated users. In this case, the CPU 10 sets all viewing flags to the “unviewed” flag for each user. When the designated user is recorded, the CPU 10 ends the recording reservation (S106).

  FIG. 3A is a flowchart for explaining the operation of the HDD recorder 1 during content reproduction. When the designated user views the recorded content, the CPU 10 of the HDD recorder 1 stores the information and updates the viewing history. When viewing the recorded content (S201), a remote controller 3 action indicating a user, for example, an individual remote controller 3 given for each user, or a user specifying button 32 is provided for the shared remote controller 3 Then, after processing such as pressing the button, the playback button is pressed for viewing and user authentication is performed (S202). When the user A starts viewing, information that the viewing has started is stored internally (S203), and when the playback is stopped thereafter, the content is reproduced more than a certain amount, for example, 80% or more. If it is determined that it has been performed (S204: Yes), the flag “viewing complete” is stored in the content information database shown in FIG. 3B (S205). On the other hand, if it has not reached 80%, for example, if the user C has finished viewing the content X1 only about half, it is determined that there is still an unviewed part and the user C is “viewing” A flag is set (S206). When each designated user finishes playing the content, the playing process is finished (S207).

  Note that the CPU 10 of the HDD recorder 1 may omit the operation of updating the viewing history at the time of content reproduction when a user other than the designated designated user tries to reproduce the recorded content. Further, the playback may be stopped because it does not match any of the viewing user information.

  FIG. 4A is a flowchart for explaining an operation at the time of content deletion for deleting content from the HDD 12 of the HDD recorder 1. When deleting the recorded content (S301), the CPU 10 of the HDD recorder 1 performs the deletion after confirming whether all the users specified in the device have been viewed. If there is a user who has not yet viewed among the designated users, a warning is issued to alert the user or the deletion is stopped.

  For example, when deleting the content X1, the CPU 10 searches the content information database shown in FIG. 3B (S302), and checks whether all designated users have been viewed (S303). If all the contents have been confirmed and confirmed (S303: Yes), deletion is performed (S304). Otherwise, for example, if there are unviewed users (B) who have not yet viewed among the designated users (A, B, C) and users (C) who are still viewing, FIG. ) Is output to the display 22 of the monitor 2, and an inquiry is made to confirm with the user whether or not the content can be deleted (S305). The CPU 10 issues a warning and prompts the user's attention, and then proceeds with the process according to the operation input made via the operation circuit 17 or the remote controller 3. When the user operates to delete the content (S306: Yes), the processing is performed to delete, or when the user operates not to delete the content (S306: No), the processing ends without deleting. (S307).

  Although the warning screen is displayed when the content X1 is deleted, the warning screen may not be deleted until all designated users related to the content X1 have been viewed. By alerting you when deleting content, you do n’t have to worry about easily deleting data that other users have n’t watched, and it ’s easy for other users to know whether you ’re watching or not watching, It becomes easy to manage the recording capacity of the HDD 12.

  Further, FIG. 5A is a diagram showing the structure of a database for registering a designated user who views the content X2 in this embodiment. In the HDD recorder 1 of the present embodiment, the designated user (A, B, C) is registered at the time of recording reservation for the content X2 recorded in the HDD 12, and the designated user (A, C) has been viewed. However, on the other hand, the designated user (B) has not yet viewed and cannot delete the content X2. Therefore, the CPU 10 of the HDD recorder 1 views the content X2 when there is content X2 that has been viewed by all but one user, and when the user B who has not yet viewed performs an operation. That the user is not the last user, and prompts the user to play the content X2.

  For example, in the flag relating to the designated user possessed by the content X2 in FIG. 5 (a), if only one user (B) is “unviewed”, the CPU 10 of the HDD recorder 1 determines that FIG. The content X2 is added and registered in the last content list B provided for the user B as shown in FIG. Thereafter, when the user B operates the HDD recorder 1, the CPU 10 confirms whether there is content registered in the last content list B of the HDD recorder 1, and if registered content exists (in this case) In the contents X1, X2), a warning message indicating that “the viewing user B has not yet finished viewing the contents X1, X2” is displayed. User B knows that the contents X1 and X2 have not yet been viewed by the warning message, so he chooses whether to view contents X1 or X2 or to delete them on the assumption that there is no need to see them. Then, the HDD recorder 1 is operated, and as a result, it becomes easy to secure the recordable capacity of the HDD 12.

  The warning message may be output to the display circuit 19 including the display circuit of the HDD recorder 1 or the display 22 of the monitor 2. Further, the present invention is not limited to the case where a warning message is issued only for the last user who is not viewing, but may be expanded when a plurality of users have not yet viewed. In addition, when a designated user with low usage frequency is recognized through the remote controller 3, the CPU 10 may delete unviewed content based on the last content list regarding the specified user with low usage frequency. An inquiry may be made to confirm with the user.

  The HDD recorder 1 of the present embodiment is common to the case of the first embodiment up to the process of making a content recording reservation, and thus the common description is omitted. However, in the database for registering deletion permission for each designated user, which will be described later, all deletion permission flags are set to the “unset” flag for each user in the content recording reservation process. In this embodiment, the CPU 10 of the HDD recorder 1 makes an inquiry to the viewing user about whether or not to delete the content after viewing the content and makes it easy to secure the recordable capacity of the HDD 12.

  FIG. 6A is a flowchart for explaining the operation of the HDD recorder 1 in the present embodiment during content reproduction. When a user views the recorded content (S401), the CPU 10 of the HDD recorder 1 performs user authentication using the user designation button 32 provided on the shared remote controller 3 (S402). The content is viewed (S403), and when the viewing is completed (S404), the user is inquired whether the content can be deleted (S405). If the viewed user operates using the remote controller 3 to delete the content, the CPU 10 stores in the database for registering whether or not each designated user can be deleted as shown in FIG. Then, the “delete permission” flag is stored (S406). When the user designated for the content can delete all the contents (S407: Yes), the deletion is performed (S408). Also, if it is not desired to delete the content that has just been viewed, or if no content has been given permission to be deleted by anyone (S407: No), the playback process is terminated without deleting the content. (S409).

  Of course, if deletion cannot be performed, processing may be performed so as to issue a deletion warning to a user who has not viewed the deletion candidate content. FIG. 7A is a flowchart for explaining the operation at the time of content deletion of the HDD recorder 1 in the present embodiment. If the recordable capacity of the hard disk 11 is tight and content deletion is urgently required, but only content that is not permitted to be deleted, the content that the user wants to delete is sent via the remote controller 3 or the like. The CPU 10 requests the user who has not viewed the content to issue a warning (S501). Specifically, when a deletion warning request is issued for the content X2 that has not been viewed by the user B, the CPU 10 stores the content X2 that is desired to be deleted in the warning list database as shown in FIG. A designated user B who is not permitted to delete is added and registered (S502).

  FIG. 7C is a flowchart for explaining the operation at the time of content deletion of the HDD recorder 1 in the present embodiment. In the content deletion warning display process (S601), the CPU 10 of the HDD recorder 1 authenticates the user with the user designation button 32 provided on the shared remote controller 3 when the HDD recorder 1 is activated (S602) ( S603), it is confirmed whether or not the content not yet viewed by the designated user is registered in the warning list (S604). If such content is not included in the warning list (S604: No), normal processing is performed (S610), but if such content is included in the warning list (S604: Yes), FIG. A warning message as shown in (d) is displayed (S605).

  For example, when the user B operates the HDD recorder 1 in order to play back any content, since the warning list includes the content X2 that the user B and the user B have not viewed, the CPU 10 of the HDD recorder 1 A warning message is output to the display 22 of the monitor 2 so as to select “view the content X2 now”, “view later”, or “permit deletion” without viewing. When the user B selects “view the content X2 now” or selects “view later” (S606: Yes), the content X2 is reproduced (S607). Processing to update the viewing history is performed. Further, when “permit deletion” is selected (S606: No, S608: Yes), a “deletion permission” flag is stored in the database for registering deletion permission for each designated user (S609). (S610). If the deletion permission is issued immediately without viewing, the database may be changed to “deletion permission” and the content may be deleted immediately.

  In the HDD recorder 1 of the present embodiment, all users cannot delete content that does not issue deletion permission, but some deletion rule modes are provided. For example, when deletion is desired, the deletion permission exceeds a majority. “Democracy mode” that can be deleted, or “Temporary mode” that only a specific user has the authority to delete may be provided. Further, the HDD recorder 1 refers to the database of the warning list as shown in FIG. 7B and the database for registering the deletion permission for each designated user, and obtains the deletion permission for one person from the deletion permission flag. For example, a list of contents that can be easily deleted and that can be easily deleted may be held on the display 22 of the monitor 2. In the HDD recorder 1 according to the present embodiment, when content is deleted, the content for which all users have issued deletion permission is to be deleted, so that the content that other users need to leave unviewed is mistakenly deleted. There is nothing. In addition, when it becomes necessary to delete, a warning can be issued to other users, so that it is possible to inform other users of permission to delete.

  The content recording / playback apparatus of the present invention can be applied not only to an HDD recorder but also to an IC recorder using a recording medium without a drive circuit such as a flash memory.

It is a figure explaining the HDD recorder by preferable embodiment of this invention. (Example 1) 4 is a flowchart illustrating an operation of the HDD recorder according to a preferred embodiment of the present invention. (Example 1) 4 is a flowchart illustrating an operation of the HDD recorder according to a preferred embodiment of the present invention. (Example 1) 4 is a flowchart illustrating an operation of the HDD recorder according to a preferred embodiment of the present invention. (Example 1) 4 is a flowchart illustrating an operation of the HDD recorder according to a preferred embodiment of the present invention. (Example 1) 6 is a flowchart illustrating an operation of an HDD recorder according to another preferred embodiment of the present invention. (Example 2) 5 is a flowchart illustrating an operation of an amplifying apparatus according to a preferred embodiment of the present invention. (Example 2)

Explanation of symbols

1 HDD recorder 2 Monitor 3 Remote controller 10 CPU
11 Magnetic disk 12 HDD (hard disk drive)
13 Recording / Reproduction Control Circuit 14 Input / Output Control Circuit 15 HDMI Input Terminal 16 HDMI Output Terminal 17 Operation Circuit 18 Remote Control Signal Reception Circuit 19 Display Circuit 20 HDMI Input Terminal 21 Decode Circuit 22 Display 23, 24 Speaker 30 CPU
31 Remote control signal transmission circuit 32 Operation keys and buttons

Claims (9)

Recording medium control means for recording content and content information on a recording medium, or reproducing the content and content information from the recording medium;
A display unit connected to the recording medium control unit to display the content and the content information; and an operation unit connected to the recording medium control unit to detect an operation from a user.
When recording content on the recording medium, the recording medium control means includes processing for recording the content information including viewing user information for designating a viewing user of the content via the display means and the operation means. Run,
When reproducing the content from the recording medium, the recording medium control means executes a process of updating and recording the content information based on the viewing user information specified by the operation means and the viewing history information. ,
When deleting content from the recording medium, the recording medium control means executes processing for determining whether or not deletion is possible based on the content information, and when determining that deletion is possible, executes processing for deleting the content. If it is determined that the deletion is not permitted, a process for displaying a warning based on the content information on the display means is executed.
Content recording / playback apparatus. In the case where the recording medium control unit records content on the recording medium, when the plurality of viewing users are specified via the display unit and the operation unit, the plurality of viewing user information is included in the content information. Execute the process to record
The content recording / reproducing apparatus according to claim 1. When the recording medium control means reproduces content from the recording medium, when viewing user information specified by the operation means matches any of the plurality of viewing user information included in the content information, Executing a process of updating and recording the content information based on the viewing user information and the viewing history information;
The content recording / reproducing apparatus according to claim 2.   When the recording medium control means deletes content from the recording medium, the recording medium control means executes processing for determining whether or not to delete based on a plurality of viewing user information and viewing history information included in the content information, and a predetermined ratio 4. The content recording according to claim 2, wherein the plurality of viewing users determine that the content can be deleted when the content has been viewed for a predetermined ratio or more, or otherwise determine that the content is not deleted. Playback device. When the recording medium control means deletes content from the recording medium, when determining that the content is not to be deleted, specific viewing user information that still does not satisfy a predetermined condition among the plurality of viewing users and Executing a process of updating and recording the content information based on the viewing history information;
When the recording medium control means reproduces content from the recording medium, the viewing user information specified by the operation means is the specific viewing user information not yet satisfying the predetermined condition included in the content information. A process of displaying a warning based on the content information on the display means when they match,
The content recording / reproducing apparatus according to claim 4. The recording medium control means executes a process of displaying a display screen for inputting deletion permission / prohibition information by the operation means when the reproduction of the content from the recording medium is completed, and the operation means Executing the process of including the content information to update and record the deletion permission information input in
The content recording / reproducing apparatus according to claim 3.   When the recording medium control means deletes content from the recording medium, the recording medium control means executes a process of determining whether or not to delete based on a plurality of viewing user information included in the content information and each deletion enable / disable information. The content recording / reproducing apparatus according to claim 6, wherein when a plurality of viewing users of a ratio or more input that deletion is possible, it is determined that deletion is possible, or in other cases, it is determined that deletion is not possible. When the recording medium control means deletes content from the recording medium, specific viewing user information that has not yet been input as “deleteable” among the plurality of viewing users when determining that the content is to be deleted The content information is updated and recorded based on
When playing back content from the recording medium, if the viewing user information specified by the operation means matches the specific viewing user information that has not yet been entered as deleteable included in the content information, Executing a process of displaying a warning based on the content information on the display means;
The content recording / playback apparatus according to claim 7. A content information recording / reproducing method for recording content and content information on a recording medium or reproducing the content and the content information from the recording medium,
A step of recording the content information including viewing user information for designating a viewing user of the content via the display means and the operation means when recording the content on the recording medium;
When reproducing the content from the recording medium, updating and recording the content information based on the viewing user information specified by the operation means and the viewing history information;
When deleting content from the recording medium, the step of determining whether or not to delete based on the content information, the step of deleting the content when determining that deletion is possible, and the content information when determining whether or not deletion is possible Displaying a warning based on the display means;
Including a content information recording / reproducing method.

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