JP2011097211A - Device, method and program for limiting viewing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a viewing limiting device, a method of limiting viewing, and a viewing limiting program for performing parental control of content recorded on removable recording media without requiring any complicated circuit packaging and increasing a processing load when downloading the content for acquisition. <P>SOLUTION: The viewing limiting device records the content acquired and processed by a content acquisition processor on a medium along with auxiliary information, registers information for limitation included in the auxiliary information and medium ID of the medium in an information table for limitation in a display limitation information holder, and compares display allowance conditions set to a display condition setting section by a user with the registered information for limitation, thereby determining the display of the content in a display to be allowed or not. Further, when the medium is changed, the medium ID of new medium is compared with the registered medium ID, and the registered information table for limitation is removed when both the medium IDs differ. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a device for restricting display of viewing restricted content, a method for restricting display of viewing restricted content, and a program for restricting display of viewing restricted content.

  In recent years, home servers such as HDD (Hard Disk Drive) recorders that can be connected to the Internet access the content distributor's server via the Internet, and movies, dramas, etc. provided by the content distributor Content distribution that allows users to select and purchase desired content from a wide variety of content, download (DL) the purchased content, store it on a fixed recording medium such as an HDD built in the recorder, and view it Service is realized.

  However, among a wide variety of contents handled in such a content distribution service, there are those whose viewing is restricted according to viewer attributes from an ethical point of view. For example, there are movies whose viewing is restricted by age, such as an adult R designated movie and an adult X designated movie.

  In this way, content whose viewing is restricted according to the age of the viewer is called parental content, and viewer attribute information (for example, age, nationality, gender) used to restrict viewing is parental. In addition, viewing restriction processing using parental information for parental content is called parental control.

  For example, Patent Literature 1 and Patent Literature 2 disclose conventional methods for restricting display of such parental content.

  In the content distribution service, it is possible to record and view content not only on a fixed recording medium but also on a removable recording medium such as a Blu-ray disc (hereinafter referred to as BD) or an SD card. It is desirable to make it.

  In this way, for example, even a recorder device that directly records downloaded content on a BD or SD card without having an HDD as a recording medium, the content distribution service can be used. However, even when content is recorded on such a removable recording medium, it is necessary to perform appropriate parental control.

  For example, in anticipation that the download is completed before waking up the next morning, an adult sets the start of downloading the desired adult X-designated movie to the SD card in the recorder device installed in the living room before going to bed However, the next morning, he intended to take out the SD card from the recorder device, but forgot to do so, or the non-adult watched the content recorded in the SD card before taking out the non-adult. Therefore, it is necessary to prevent a case where inappropriate content can be viewed.

  To deal with such a problem, in Patent Document 3, even if the content data is once decoded and then re-encoded and recorded, the parental information is stored in AV ( A method of multiplexing and recording in an Audio and Visual) stream is disclosed. According to this method, parental control can be realized even when the parental content is downloaded and then directly recorded on the removable recording medium.

JP 2008-42811 A JP 08-339664 A International Publication No. 2004/045207

  However, when the parental information is retained for the content recorded on the removable recording medium using the conventional method disclosed in Patent Document 3, AV stream multiplexing is performed as a process for adding the parental information. Since it is necessary to perform processing such as digitization, there are problems such as requiring more complicated circuit mounting and increasing the processing load when downloading and acquiring content than in the past.

  On the other hand, in the case of removable recording media, unlike fixed recording media, it is possible to avoid inappropriate viewing by non-adults by physically removing the media from the device. It is desirable to realize appropriate parental control that does not involve parental information addition processing that leads to an increase in processing load by utilizing the characteristics of the recording medium.

  The present invention has been made in view of such problems, and a viewing restriction device, a viewing restriction method, and a viewing restriction that can perform parental control of content recorded on a removable recording medium without increasing the processing load. The purpose is to provide a program.

  In order to achieve the above object, a viewing restriction apparatus according to a first invention of the present application restricts viewing of content acquired from a server on a network and recorded on a removable recording medium (hereinafter referred to as a medium). The content acquisition processing means for processing the content acquired from the server and the content attached information related to the content and recording it on the media, and information used for the viewing restriction, the content attached information Display restriction information holding means for holding the viewing restriction information contained in the non-volatile area, display condition setting means for setting a display permission condition for the content by the user, and for each content recorded on the medium Displayable for each content based on the viewing restriction information and the display permission condition. A display means for judging, it is characterized in that it comprises a.

  The viewing restriction device of the second invention of the present application is the viewing restriction device of the first invention of the present application, wherein the media is stored in the media storage means for storing the media at every predetermined timing. Medium status confirmation means for confirming whether the medium is stored and confirming that the medium is stored, and notifying the display restriction information holding means of the medium identification information (b) of the stored medium; The display restriction information holding unit holds the viewing restriction information in a nonvolatile area as a table associated with the content identification information of the content and the media identification information (a) of the medium on which the content is recorded. When the media identification information (b) is received from the media status confirmation means, the held media Comparing the medium identification information with the identification information (A) and (B), if they do not match, it is characterized in deleting the table stored in the nonvolatile area.

  The viewing restriction device according to a third aspect of the present invention is the viewing restriction device according to the second aspect of the present invention, wherein the predetermined timing is determined when the medium is stored in the media storage means or the power supply in the device itself. The power supply is restarted after being shut off.

  The viewing restriction device of the fourth invention of the present application is the viewing restriction device of the first or second invention of the present application, wherein the viewing restriction information includes age information and is set by the display condition setting means. The age information can be set as the display permission / inhibition condition.

  The viewing restriction method of the fifth invention of the present application is a viewing restriction method for restricting viewing of content acquired from a server on a network and recorded on a removable recording medium (hereinafter referred to as a medium). The content acquisition processing step of processing the content acquired from the content and the content attached information related to the content and recording it on the medium, and information used for the viewing restriction, for viewing restriction included in the content attached information A display restriction information holding step for holding information in a non-volatile area, a display condition setting step for setting a display permission condition for the content by a user, and the viewing restriction information for each content recorded on the medium, Based on the display availability condition, it is determined whether display is possible for each content. Display a step that is intended to comprising the.

  The viewing restriction method according to a sixth aspect of the present invention is the viewing restriction method according to the fifth aspect of the present invention, wherein the medium is stored in the media storing step for storing the media, and the media storing step at each predetermined timing. A medium status confirmation step of confirming whether the medium is stored and confirming that the medium is stored, and notifying the display restriction information holding step of the medium identification information (b) of the stored medium; The display restriction information holding step holds the viewing restriction information in a non-volatile area as a table associated with the content identification information of the content and the media identification information (a) of the medium on which the content is recorded. And the media identification information (b) is notified from the media status confirmation step. The stored media identification information (a) and the media identification information (b) are compared, and if they do not match, the table held in the non-volatile area is deleted. It is characterized by.

  Also, the viewing restriction method of the seventh invention of the present application is the viewing restriction method of the sixth invention of the present application, wherein the predetermined timing is when the media is stored in the media storing step or when the power is shut down in the own device. It is characterized by a time when the power supply is later restarted.

  The viewing restriction method of the eighth invention of the present application is the viewing restriction method of the fifth or sixth invention of the present application, wherein the viewing restriction information includes age information and is set in the display condition setting step. The age information can be set as the display permission / inhibition condition.

  A viewing restriction program according to a ninth aspect of the present invention is a viewing restriction program that implements a viewing restriction method for restricting viewing of content acquired from a server on a network and recorded on a removable recording medium (hereinafter referred to as media). A content acquisition processing step of processing the content acquired from the server and content attached information related to the content and recording the processed content on the medium, and information used for the viewing restriction, the content attached information Display restriction information holding step for holding the viewing restriction information included in the non-volatile area, a display condition setting step for setting a display permission condition for the content by the user, and for each content recorded on the medium Based on the viewing restriction information and the display availability condition, A display step for determining whether it is possible to display for each serial content, and is characterized in that it comprises a.

  A viewing restriction program according to a tenth aspect of the present invention is the viewing restriction program according to the ninth aspect of the present invention, wherein the medium is stored in the medium storing step for storing the medium, and the medium storing step at each predetermined timing. A medium status confirmation step of confirming whether the medium is stored and confirming that the medium is stored, and notifying the display restriction information holding step of the medium identification information (b) of the stored medium; The display restriction information holding step holds the viewing restriction information in a non-volatile area as a table associated with the content identification information of the content and the media identification information (a) of the medium on which the content is recorded. And the media identification information from the media status confirmation step. When (b) is notified, the held media identification information (b) is compared with the media identification information (b), and if the two do not match, they are held in the non-volatile area. The table is deleted.

  The viewing restriction program according to an eleventh aspect of the present invention is the viewing restriction program according to the tenth aspect of the present invention, wherein the predetermined timing is when the medium is stored in the medium storing step or when the power is shut down in the own apparatus. It is characterized by a time when the power supply is later restarted.

  The viewing restriction program of the twelfth invention of the present application is the viewing restriction program of the ninth or tenth invention of the present application, wherein the viewing restriction information includes age information and is set in the display condition setting step. The age information can be set as the display permission / inhibition condition.

  Advantageous Effects of Invention According to the present invention, a viewing restriction device and viewing restriction that realize parental control for content recorded on a removable recording medium without increasing the processing load when acquiring content by complicated circuit implementation or download It is possible to provide a method and a viewing restriction program.

FIG. 1 is a block diagram showing a configuration of a viewing restriction device according to Embodiment 1 of the present invention. The figure which shows an example of a structure of the information table for restriction | limiting in Embodiment 1 of this invention. The figure which shows the processing operation of the viewing-and-listening restrictions apparatus which concerns on Embodiment 1 of this invention. The figure which shows the processing operation when the same SD card is inserted again after the SD card is removed in the viewing restriction apparatus according to Embodiment 1 of the present invention. The figure which shows the processing operation | movement of the parental control after downloading a several parental AV file and recording on SD card in the viewing-and-listening apparatus which concerns on Embodiment 1 of this invention. The figure which shows the other example of a structure of the information table for restriction | limiting in Embodiment 1 of this invention.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated, referring drawings.

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of a viewing restriction apparatus according to Embodiment 1 of the present invention.

  In FIG. 1, a viewing restriction apparatus 100 according to Embodiment 1 of the present invention is, for example, a recorder device having an SD card slot, and includes a network I / F 101, content acquisition processing means 102, media storage means (not shown). SD card 103, display restriction information holding means 104, display means 105, media state confirmation means 106, and display condition setting means 107 are provided.

  The network I / F 101 communicates with a content server (not shown) that provides content via the Internet (not shown), and content-attached information (b) and AV files (AV files) that constitute the content acquired from the content server. B) is transmitted to the content acquisition processing means 102.

  The content acquisition processing unit 102 records the content ancillary information (A) and AV file (B) acquired from the network I / F 101 on the SD card 103 stored in the media storage unit (not displayed), and displays the display restriction. The information holding means 104 transmits and holds viewing restriction information (hereinafter referred to as restriction information) (c) included in the content ancillary information (b) corresponding to the AV file (b).

  The display unit 105 determines whether or not the corresponding AV file (b) can be displayed based on the restriction information (c) corresponding to the corresponding AV file (b) held in the display restriction information holding unit 104, and the user On the other hand, the AV file (b) output from the SD card 103 is displayed for the AV file (b) that does not require display restrictions, and the display is restricted for the AV file (b) that requires display restrictions. .

  The media status confirmation means 106 confirms the media status information (d) indicating whether or not the SD card 103 is stored in the media storage means (not shown) at a predetermined timing, and the SD card 103 is stored. When this is detected, media ID (IDentification) information (e), which is media identification information, is acquired from the stored SD card 103 and notified to the display restriction information holding means 104.

  The display condition setting unit 107 accepts a display condition setting for permitting or restricting the display of the AV file (b) from the user, and sets a displayable condition on the display unit 105.

  Here, the content ancillary information (a) is composed of information necessary for reproducing and displaying the AV file (b), and in particular, parental information, which is a viewing condition for the AV file (b), and the content Content ID information, which is content identification information for uniquely identifying the content. In Embodiment 1 of the present invention, it is assumed that the parental information includes a condition regarding viewing age.

  Further, the restriction information (c) is information including parental information and content ID information, and the media ID information (e) is ID information unique to the medium that can uniquely identify the medium.

  Further, when receiving the restriction information (c) from the content acquisition processing unit 102, the display restriction information holding unit 104 obtains the media ID information (e) from the SD card 103, and the restriction information (c) It is stored as a restriction information table (g) combining media ID information (e). The restriction information table (g) will be described later.

  Further, when receiving the media ID information (e) from the media state confirmation unit 106, the display restriction information holding unit 104 confirms the contents of the restriction information table (g) and receives the media ID information received from the media state confirmation unit 106. If the ID information is different by comparing (e) and the media ID information held in the restriction information table (g), the restriction information table (g) is discarded (deleted).

  Note that the timing at which the media status confirmation unit 106 confirms the media status information (d) is when the media is stored in the media storage unit (not displayed) and when the power supply is restarted after the power supply is shut down in the own apparatus.

  The display condition setting unit 107 accepts display condition settings for permitting or restricting display of the AV file (b) from the user.

  Here, an example of the configuration of the restriction information table (g) will be described with reference to FIG. FIG. 2 is a diagram showing an example of the configuration of the restriction information table according to Embodiment 1 of the present invention.

  In FIG. 2, the restriction information table (g) is composed of one media ID and a plurality of restriction information (c), that is, information combining a plurality of content IDs and parental information.

  Thus, even if a plurality of AV files (b) are recorded in one removable recording medium by holding the plurality of pieces of restriction information (c) in the restriction information table (g), Parental control can be performed according to each restriction information (c).

  Next, the operation of the viewing restriction apparatus 100 according to Embodiment 1 of the present invention will be described with reference to the drawings.

  First, the outline of the operation of the viewing restriction apparatus 100 will be described with reference to FIG.

  In FIG. 1, when the user requests the viewing restriction apparatus 100 to acquire content desired by the user, the content acquisition processing unit 102 receives a content server (not shown) via the Internet (not shown) and the network I / F 101. 2) Acquire content accessory information (A) and AV file (B).

  When the acquisition of the content attachment information (a) is completed, the content acquisition processing unit 102 displays the restriction information (c) including the content ID information and parental information included in the acquired content attachment information (a) as display restriction information. In addition to notifying the holding means 104, when acquisition of the content attached information (A) and the AV file (B) is completed, they are transmitted to the SD card 103 and recorded.

  Upon receiving the restriction information (c) from the content acquisition processing means 102, the display restriction information holding means 104 acquires the media ID information (e) of the AV file (b) recorded from the SD card 103, and the restriction information Register in the table (g).

  The above-described series of processing is repeated each time the viewing restriction apparatus 100 receives an acquisition request for desired content from a user.

  As described above, in a state where the content ancillary information (A) and the AV file (B) are recorded on the SD card 103, the user selects the AV file (B) recorded on the SD card 103 from the user. Upon receiving a display (playback) instruction for the desired AV file α, the display means 105 stores the restriction information (c) registered in the restriction information table (g) held by the display restriction information holding means 104. Among them, the parental information viewing age restriction condition related to the AV file α is compared with the viewing age condition set in the display condition setting means 107, and the AV file α display restriction, that is, the AV file α display is displayed. Whether or not to allow is determined and displayed.

  Here, a case will be described in which another SD card 103 (SD card b) is inserted after the SD card 103 (SD card a) in which parental content is recorded is removed.

  When the SD card a is removed from the media storage means (not shown), and instead the SD card b is stored in the media storage means (not shown), the media status confirmation means 106 newly stores the SD card 103. When the media status information (d) is confirmed and it is detected that the SD card b is inserted, the media ID information (e) is acquired from the newly inserted SD card b and the display is restricted. The information holding unit 104 is notified.

  When the display restriction information holding unit 104 acquires the media ID information (e) of the SD card b from the media state confirmation unit 106, the display restriction information holding unit 104 refers to the stored restriction information table (g) and registers the registered media ID. If the media ID (in this case, the media ID of the SD card a) and the media ID acquired from the media status confirmation means 106 (in this case, the media ID of the SD card b) are different, the holding restriction information table (g) Is discarded.

  When the SD card a is once removed from the media storage means (not shown) and then inserted again into the media storage means (not shown), the display restriction information holding means 104 holds The media ID registered in the restriction information table (g) (in this case, the media ID of the SD card a) and the media ID acquired from the media status confirmation means 106 (in this case, the media ID of the SD card a) Are the same, and therefore the retained restriction information table (g) is not discarded but is retained.

  Next, the processing operation of the viewing restriction apparatus 100 according to Embodiment 1 of the present invention will be described more specifically with reference to FIG. FIG. 3 is a diagram showing a processing operation of the viewing restriction apparatus according to Embodiment 1 of the present invention.

  In FIG. 3, after the user inputs the passcode to the display condition setting means 107, the user sets the condition “display content that can be viewed up to 15 years old” as the viewing age condition (S 200), and then the content acquisition processing means 102. Is instructed to start download (DL: DownLoad) processing (content acquisition processing) (S201).

  The content acquisition processing unit 102 starts the download process and acquires the content attachment information (a) (S202). When the acquisition of the content attachment information (a) is completed in step S202, the content attachment information (a) The display restriction information holding means 104 is notified of restriction information (c) consisting of content ID information and parental information included in the display restriction information (S203). Here, it is assumed that the value of the content ID information is “CRID11111111” and the parental information is “18 years old or older can be viewed”.

  Upon receiving the restriction information (c) from the content acquisition processing means 102, the display restriction information holding means 104 obtains “AAAA” as the value of the media ID information from the SD card 103 (S204) and restricts the information. Registered in the service information table (g) (S205).

  With the processing operation as described above, the display restriction information holding unit 104 holds the restriction information table (g) shown in FIG.

  In the state where the restriction information table (g) is held in the display restriction information holding unit 104, the user instructs to display the AV file α selected from the AV files (b) recorded on the SD card 103 (b). (S206), the display unit 105 acquires the restriction information (C) from the display restriction information holding unit 104 (S207), and acquires the viewing age condition set by the user in step 200 from the display condition setting unit 107 (S207). After S208), the parental information of the AV file α included in the restriction information (c) acquired from the display restriction information holding unit 104 is compared with the viewing age condition acquired from the display condition setting unit 107, and the AV file is compared. α is limited (S209).

  In the case of the first embodiment of the present invention, the parental information of the AV file α is “viewable for 18 years or older”, and the viewing age condition set by the user in the display condition setting means 107 is “viewable up to 15 years old” Since “content is displayed”, the display unit 105 restricts the display of the AV file α and does not permit the display.

  By performing the processing operation as described above, parental control can be realized without multiplexing and holding parental information in the AV file recorded on the SD card 103.

  Subsequently, the content acquisition processing means 102 acquires content attached information (A) and acquires an AV file (B) (S210). When the acquisition of the content attached information (a) and the AV file (b) is completed, they are recorded on the SD card 103 (S211).

  In this state, after the SD card 103 on which the parental content is recorded is removed from the media storage means (not shown) (S212), another SD card 303 is stored in the media storage means (not shown). When inserted (S213), the media status confirmation means 106 confirms the media status information (d) with the newly stored media (S214) and confirms that the SD card 303 is newly inserted. Upon detection, the media ID information (e) is acquired from the newly inserted SD card 303, and the value “BBBB” of the acquired media ID information of the SD card 303 is notified to the display restriction information holding means 104 (S215).

  The display restriction information holding unit 104 receives “BBBB” that is the value of the media ID information notified from the media state confirmation unit 106 and the value “AAAA” of the media ID information that is registered in the restriction information table (g). In comparison (S216), it is determined that the values of the media ID information are different, and the stored restriction information table (g) is discarded (deleted) (S217).

  When the display restriction information holding unit 104 deletes the held restriction information table (g), the parental content is recorded on the SD card 303 newly stored in the media storage unit (not displayed). If the content ID information of the recorded AV file (b) is acquired as well as the media ID information, parental information corresponding to the content ID information is extracted, and the restriction information corresponding to the SD card 303 is extracted. A table (g) may be generated. In this case, the viewing restriction device 100 displays the restriction information table (g) corresponding to the SD card 303 newly generated in the display restriction information holding unit 104 and the display condition setting. The AV recorded on the SD card 303 based on the viewing restriction conditions (for example, viewing age conditions) set in the means 107. Airu may be subjected to parental control of the (content).

  As described above, by setting the deletion condition of the restriction information table (g) when another SD card is inserted, the restriction information table (g) is held or deleted for each medium. The parental content can be prevented from being displayed (reproduced) by mistake until the SD card on which the parental content is recorded is collected by an appropriate administrator without requiring any management. it can.

  In the first embodiment of the present invention, the case where another SD card (memory) is inserted has been described as an example of the timing for deleting the restriction information table (g). It is also possible to store the information table (g) in a volatile area such as a RAM (Random Access Memory) memory so that it is deleted when the power is turned off. This is particularly limited in the first embodiment of the present invention. Not what you want.

  However, if the restriction information table (g) is deleted at such a power-off timing, the parental is not activated after the power-off and the SD card 103 in which the parental content is recorded. Content will be displayed. For this reason, setting the deletion condition of the restriction information table (g) as a case where another SD card 303 is inserted is a suitable timing for keeping the parental content display restriction (display condition).

  Further, as another timing for the media status confirmation means 106 to confirm the media status information (d), the reason why the power is restarted after the power is shut down in the own device is that the power in the own device is in the shut-off state. When the SD card 103 is replaced from the SD card a to another SD card b, the restriction information (c) held in the display restriction information holding means 104 is deleted when it becomes unnecessary. This is because unnecessary data management can be minimized.

  Next, referring to FIG. 4, after the SD card (removable recording medium) 103 on which the parental content is recorded is removed from the medium storage means (not shown), the same SD card (removable recording medium) is again used. A processing operation in the viewing restriction apparatus 100 when 103 is inserted into a media storage means (not shown) will be described. FIG. 4 is a diagram showing a processing operation when the same SD card is inserted again after the SD card is removed in the viewing restriction device according to Embodiment 1 of the present invention.

  In FIG. 4, the processing operations of steps S200 to S205 and steps S210 to S211 are the same as the processing operations of the viewing restriction apparatus 100 according to Embodiment 1 of the present invention described with reference to FIG. The same step numbers are assigned and description thereof is omitted here.

  When the SD card 103 on which the parental content is recorded is removed from the media storage means (not shown) (S400) and then the same SD card 103 is inserted again (S401), the media status confirmation means 106 When the media status information (d) is confirmed in accordance with the newly inserted media (S402) and it is detected that the SD card 103 is newly inserted, the media ID is detected from the newly inserted SD card 103. The information (e) is acquired, and the value “AAAA” of the acquired media ID information of the SD card 103 is notified to the display restriction information holding means 104 (S403).

  The display restriction information holding unit 104 includes “AAAA” that is the value of the media ID information notified from the media state confirmation unit 106, and the value “AAAA” of the media ID information that is registered in the restriction information table (g). (S404), it is determined that the values of the media ID information are the same, and the holding of the holding information table (g) is continued (S405).

  In this manner, the same SD card 103 is inserted again, and the restriction information table (g) held by the display restriction information holding means 104 is continuously held and recorded by the user on the SD card 103. When the user receives a display (playback) instruction for the AV file β desired by the user (S406), the display unit 105 receives the display restriction information holding unit 104 from the display restriction information holding unit 104. The parental information viewing age restriction condition related to the AV file β is acquired from the restriction information (c) registered in the restriction information table (g) that is continuously stored in (G). The viewing age condition set by the user in step S200 is acquired from the display condition setting means 107 (S408), and these acquired viewing conditions are acquired. The age restriction condition and the viewing age condition are compared, and it is determined whether or not the display restriction of the AV file β, that is, the display of the AV file β is permitted (S409).

  In the case of Embodiment 1 of the present invention, the parental information of the AV file β is “viewable over 18 years old”, and the viewing age condition is “display content that can be viewed up to 15 years old”. The means 105 restricts the display of the AV file β and does not permit the display.

  As described above, even if the same removable recording medium (SD card 103) is inserted again after removing the removable recording medium (SD card 103) on which the parental content is recorded from the viewing restriction device 100, the parental Control can be executed continuously. Therefore, even when the same removable recording medium (SD card 103) is inserted and removed on the spot, the display of parental content (parental AV file) can be restricted.

  Next, referring to FIG. 5, a plurality of parental AV files (b) are downloaded and recorded on a removable recording medium (SD card 103), and then parental control is performed on those AV files (b). A processing operation in the viewing restriction apparatus 100 will be described. FIG. 5 is a diagram showing a parental control processing operation after a plurality of parental AV files are downloaded and recorded on an SD card in the viewing restriction apparatus according to Embodiment 1 of the present invention.

  In FIG. 5, the processing operations of steps S200 to S205 and steps S210 to S211 are the same as the processing operations of the viewing restriction apparatus 100 according to Embodiment 1 of the present invention described with reference to FIG. The same step numbers are assigned and description thereof is omitted here.

  After the content acquisition processing unit 102 completes the acquisition of the content ancillary information (A) and the AV file (B) and records them on the SD card 103 (S211), the user further accesses the viewing restriction device 100. Then, an instruction is given to start download processing of another AV file (the AV file here is (i)) (S501), and the viewing restriction apparatus 100 that has received the instruction starts download processing in the content acquisition processing means 102 To do.

  The content acquisition processing means 102 acquires the content attached information (the content attached information here is (H)) (S502), and when the acquisition is completed, the content ID information and the content ID information included in the content attached information (H) are stored. Restriction information consisting of rental information (the restriction information here is (nu)) is notified to the display restriction information holding means 104 (S503). Here, it is assumed that the value of the content ID information is “CRID22222222” and the parental information is “viewable for 15 years old and over”.

  Upon receiving the notification of the restriction information (nu) from the content acquisition processing means 102, the display restriction information holding means 104 obtains “AAAA” as the value of the media ID information from the SD card 103 (S504), and the restriction information Registration is made in the table (L) (S505).

  By performing the processing as described above, the display restriction information holding unit 104 holds the restriction information table (L) as shown in FIG. FIG. 6 is a diagram showing another example of the configuration of the restriction information table according to the first embodiment of the present invention.

  The content acquisition processing means 102 acquires the AV file (re) (S506), and when the acquisition of the content attached information (h) and the AV file (re) is completed, they are transmitted to the SD card 103 and recorded ( S507).

  As described above, after at least two parental AV files (b) and parental AV file (re) are downloaded and recorded on the SD card 103, the user can select among the AV files recorded on the SD card 103. When the display instruction of the AV file γ corresponding to the desired parental AV file (re) is received from the display restriction information holding means 104, the display means 105 registers the restriction file registered in step S205 and step S505. Information (c) and restriction information (nu) are acquired (S509), and the viewing age condition set by the user in step S200 is acquired from the display condition setting means 107 (S510).

  The display unit 105 compares the parental information included in the restriction information (c) and the restriction information (nu) acquired from the display restriction information holding unit 104 with the viewing age condition acquired from the display condition setting unit 107. Then, display restriction of the AV file γ is performed (S511).

  In the case of the first embodiment of the present invention, the parental information of the content having the content ID “CRID11111111” is “18 years old or older can be viewed”, and the parental information of the content having the content ID “CRID22222222” is “15 years old”. Since “viewing is possible” and the viewing age condition is “display content that can be viewed up to 15 years old”, the display unit 105 displays the AV file γ when the content ID of the AV file γ is “CRID11111111”. And the AV file γ is displayed when the content ID of the AV file γ is “CRID 22222222”.

  As described above, even when a plurality of parental contents are recorded on the same SD card 103, it is possible to perform display restriction based on each parental information.

  In the first embodiment of the present invention, an SD card has been described as an example of the removable recording medium. However, the present invention is not limited to this, and for example, a BD (Blu-ray Disc), a memory stick, iVDR ( Other general removable recording media such as information Versatile Disk for Removable) may be used.

  In the first embodiment of the present invention, the recorder device is described as an example of the viewing restriction device 100. However, the present invention is not limited to this. For example, the viewing restriction device 100 is a digital TV having a content recording function. It doesn't matter.

  Further, in the first embodiment of the present invention, the condition for deleting the restriction information table (g) is changed by the display condition setting means 107 by the user, and the condition “parental control unnecessary” is set. It may be the case.

  In addition, the present invention can be provided not only as a viewing restriction apparatus including each means in the first embodiment of the present invention, but also a viewing restriction method including each step included in the viewing restriction apparatus, and the viewing thereof. It is also possible to provide a viewing restriction program that causes a computer to execute the restriction method. The viewing restriction program can be distributed via a recording medium such as a CD-ROM (Compact Disc-Read Only Memory) or the Internet.

  The viewing restriction device of the present invention has an effect that parental control can be performed on content recorded on a removable recording medium without complicated circuit implementation and an increase in processing load. It is useful as a control device.

100 viewing restriction device 101 network I / F
102 content acquisition processing means 103 SD card 104 display restriction information holding means 105 display means 106 media state confirmation means 107 display condition setting means 303 SD card

Claims (12)

A viewing restriction device for restricting viewing of content acquired from a server on a network and recorded on a removable recording medium (hereinafter referred to as media),
Content acquisition processing means for processing the content acquired from the server and content attached information related to the content, and recording the content on the medium;
Display restriction information holding means for holding information for viewing restriction, which is information used for the viewing restriction, included in the content attached information, in a nonvolatile area;
Display condition setting means for setting a display permission condition of the content by the user;
Display means for determining whether display is possible for each content based on the viewing restriction information for each content recorded in the medium and the display permission condition;
A viewing restriction device comprising: Media storage means for storing the media;
At each predetermined timing, it is confirmed whether or not the medium is stored in the medium storage means. When it is confirmed that the medium is stored, the medium identification information (b) of the stored medium is obtained. Media state confirmation means for notifying the display restriction information holding means,
The display restriction information holding unit holds the viewing restriction information in a nonvolatile area as a table associated with content identification information of the content and medium identification information (a) of the medium on which the content is recorded, When the media identification information (b) is received from the state confirmation means, the held media identification information (b) is compared with the media identification information (b). The viewing restriction apparatus according to claim 1, wherein the table held in the area is deleted. 3. The viewing restriction apparatus according to claim 2, wherein the predetermined timing is when the medium is stored in the medium storage unit or when the power is restarted after the power is turned off in the own apparatus. The viewing restriction apparatus according to claim 1 or 2, wherein the viewing restriction information includes age information, and the age information can be set as a display availability condition set by the display condition setting means. A viewing restriction method for restricting viewing of content acquired from a server on a network and recorded on a removable recording medium (hereinafter referred to as media),
A content acquisition processing step of processing the content acquired from the server and content attached information related to the content, and recording the processed content on the medium;
A display restriction information holding step for holding the information for viewing restriction, which is information used for the viewing restriction, included in the content attached information, in a nonvolatile area;
A display condition setting step in which a display permission condition for the content is set by the user;
A display step of determining whether or not display is possible for each content based on the viewing restriction information and the display availability condition for each content recorded on the medium;
A viewing restriction method characterized by comprising: A medium storing step for storing the medium;
At each predetermined timing, it is confirmed whether or not the medium is stored in the medium storing step. When it is confirmed that the medium is stored, the medium identification information (b) of the stored medium is obtained. A media state confirmation step of notifying the display restriction information holding step;
In the display restriction information holding step, the viewing restriction information is held in a nonvolatile area as a table associated with content identification information of the content and media identification information (a) of the medium on which the content is recorded. When the media identification information (b) is notified from the state confirmation step, the held media identification information (b) is compared with the media identification information (b). 6. The viewing restriction method according to claim 5, wherein the table held in the non-volatile area is deleted. 7. The viewing restriction method according to claim 6, wherein the predetermined timing is when the medium is stored in the medium storing step, or when the power is restarted after the power is turned off in the own apparatus. 7. The viewing restriction method according to claim 5, wherein the viewing restriction information includes age information, and the age information can be set as a display permission / inhibition condition set in the display condition setting step. A viewing restriction program for realizing a viewing restriction method for restricting viewing of content acquired from a server on a network and recorded on a removable recording medium (hereinafter referred to as a medium),
A content acquisition processing step of processing the content acquired from the server and content attached information related to the content, and recording the processed content on the medium;
A display restriction information holding step for holding the information for viewing restriction, which is information used for the viewing restriction, included in the content attached information, in a nonvolatile area;
A display condition setting step in which a display permission condition for the content is set by the user;
A display step of determining whether or not display is possible for each content based on the viewing restriction information and the display availability condition for each content recorded on the medium;
A viewing restriction program characterized by comprising: A medium storing step for storing the medium;
At each predetermined timing, it is confirmed whether or not the medium is stored in the medium storing step. When it is confirmed that the medium is stored, the medium identification information (b) of the stored medium is obtained. A media state confirmation step of notifying the display restriction information holding step;
In the display restriction information holding step, the viewing restriction information is held in a nonvolatile area as a table associated with content identification information of the content and media identification information (a) of the medium on which the content is recorded. When the media identification information (b) is notified from the state confirmation step, the held media identification information (b) is compared with the media identification information (b). The viewing restriction program according to claim 9, wherein the table held in the nonvolatile area is deleted. 11. The viewing restriction program according to claim 10, wherein the predetermined timing is when the medium is stored in the medium storing step or when the power is restarted after the power is turned off in the own device. 11. The viewing restriction program according to claim 9, wherein the viewing restriction information includes age information, and the age information can be set as a display availability condition set in the display condition setting step.

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