CN100579200C - Viewing control apparatus, viewing control program, and secure module - Google Patents

Viewing control apparatus, viewing control program, and secure module Download PDF

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Publication number
CN100579200C
CN100579200C CN200480023724A CN200480023724A CN100579200C CN 100579200 C CN100579200 C CN 100579200C CN 200480023724 A CN200480023724 A CN 200480023724A CN 200480023724 A CN200480023724 A CN 200480023724A CN 100579200 C CN100579200 C CN 100579200C
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China
Prior art keywords
audiovisual
advertisement
content
information
control device
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Chinese (zh)
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CN1839630A (en
Inventor
吉川雅昭
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Abstract

EMM update information (10111) for updating a content specified by an EMM (1021) and a term of validity is correlated to an advertisement (1011). When the advertisement (1011) is viewed, the EMM (1021) is updated so that the content specified by the EMM update information (10111) can be viewed. Accordingly, a viewer can view the content for free and surely see the advertisement. Since a term of validity is set for viewing the content which can be viewed by viewing the advertisement, it is necessary to view the latest advertisement so that the content viewing moment is contained in the term of validity. As a result, it is possible to surely make a viewer view the latest valid advertisement when the viewer views a content.

Description

Audiovisual control device, audiovisual control method and security module
Technical field
The present invention relates to a kind of audiovisual control device, audiovisual control method and security module of controlling the audiovisual of broadcasted content or memory contents, especially, relating to the Audio and video advertisement is the conditions permit audio-visual content.
Background technology
Traditionally, digital content is delivered to the user by broadcasting or be recorded in the storage medium such as DVD, and sentenced the purchase cost of this storage medium from the user or collected for the price of content from the form of the broadcasting expense of collecting for advertiser attached to the advertisement of this content, perhaps when this content by audiovisual the time based on the record keeping scheme of application (sponsored program: PPV) or the like.
Under by the situation of user as content price payment charging broadcast, content uses encryption key (scrambling key) Ks to encrypt (scrambling), be broadcasted then, and comprise programme information about this scrambling key K s information (ECM: using ECM) and program audiovisual condition be used working key Kw with this content and encrypt, be broadcasted then.Upgraded this scrambling key K s every several seconds.
On the other hand, the receiving system of having signed the user of audiovisual contract receives the working key Kw that is used to decipher this ECM from broadcasting, (EMM: entitlement management message) each information of information, and this EMM is stored in the IC-card that inserts this receiving system with comprising relevant contract terms.
In the time of user's audiovisual broadcast content, by the ECM of Kw deciphering by this receiving system reception, and it judges whether the EMM contract terms satisfy this program audiovisual condition that is included among the ECM.When they satisfy this condition, perhaps when the program purchasing process is performed under PPV, use this Kw to decipher the Ks that is included among the ECM, and use the content of this this reception of Ks descrambling.
In addition,, designed a kind of scheme when by when the content record paid is in storage medium, that is, encrypted content and in storage medium record they with the protection copyright, and give this content purchase person with the content delivery of this storage medium and decruption key.
On the other hand, when collecting the price that is used for broadcasted content, this content is broadcasted with advertisement without any scrambling ground from the advertiser.The spectators that receive this content can exchange this content of free audiovisual for this advertisement of audiovisual.
But, have a kind of trend in recent years, promptly, the content of utilizing broadcasting to pay at first is stored in the memory device then by audiovisual, therefore, and normally such situation, even when content was followed an advertising broadcast, spectators skipped this advertisement, and only reproduce and audio-visual content.Such situation uses broadcast medium to offset advertising effect.
Patent documentation 1 (uncensored Japanese patent publication No.2002-157516) provides a kind of method of delivering advertisements information of audiovisual of the advertisement that is designed to promote broadcast and storage.This method allows the user to go to rent a broadcast receiving apparatus by Audio and video advertisement with low cost.When the user reproduces and advertisement of having broadcasted and having stored of audiovisual the time, its resume are recorded in the hard disk, and notify an advertisement distribution website, and according to reproducing and time of this advertisement of audiovisual goes out the rental discount for next month.
Provide an index for the scheme of collecting price from the advertiser's of advertisement broadcasted content for this advertiser, that is, and this advertisement widespread among the user that becomes, and provide an index for the user, that is, the user is this content of audiovisual freely.But, in recent years, memory contents and allow user's skip advertisements and only reproduce content wherein in the visual-audio mode that time of wanting is reproduced content, it uses broadcasting to alleviate advertising effect probably, cause the advertiser from broadcasting, to recall, and make based on aforesaid advertisement difficult more for the review of content.
In addition, even some measure is used the advertisement that promotes the audiovisual storage, the old advertisement that one of audiovisual is stored in the past and broadcasted can not be satisfied advertiser's expectation.
On the other hand, when content is stored or the method for content being kept accounts audiovisual the time need be collected expense from each spectators, this causes being used to collecting the problem of the cost of this expense.In addition since before content is by audiovisual to its charge, spectators have a kind of if whether do not check that its content then hesitates does not buy the trend of this content, this causes expecting the problem of big income.In addition, this accounting method may cause company to lose the place that it is advertised.
Summary of the invention
The present invention solves above-described general issues, and an object of the present invention is to provide and a kind ofly be used under the condition of Audio and video advertisement allowing spectators to go audiovisual control device, audiovisual control method and security module of audio-visual content or the like.
In order to reach above-described purpose, one aspect of the present invention is to constitute a kind of audiovisual control device, it comprises having the memory cell and the processing module of new portion more, the audiovisual conditional information of the valid expiration date of the audiovisual of described cell stores content identification information and this content of expression permission, when reproducing the advertisement related with audiovisual condition lastest imformation, described more new portion upgrades the described audiovisual conditional information of storing in the described memory cell based on described audiovisual condition lastest imformation, described audiovisual condition lastest imformation is used to upgrade described audiovisual conditional information, and described processing module is controlled described reproduction of content based on described audiovisual conditional information.Notice that this specification is by the various devices with content audiovisual control, respectively or carry out its combination as " audiovisual control device " such as equipment, security module, time adjustment website, advertisement distribution website.
In addition, another aspect of the present invention is the audiovisual control method, that is, comprising: the step of the audiovisual conditional information of the valid expiration date of the audiovisual of memory contents identifying information and this content of expression permission; When reproducing the advertisement related with audiovisual condition lastest imformation, upgrade the step of described audiovisual conditional information based on described audiovisual condition lastest imformation, described audiovisual condition lastest imformation is used to upgrade described audiovisual conditional information; Control the step of described reproduction of content based on described audiovisual conditional information.
In addition, in another aspect of the present invention, a kind of security module is arranged, comprising: memory cell, memory contents audiovisual conditional information, described content audiovisual conditional information are specified the valid expiration date as the audiovisual of the encrypted content of audiovisual object and the encrypted content of permission; Decrypting device based on the described valid expiration date by the appointment of described audiovisual conditional information, is deciphered and is reproduced described encrypted content; When reproducing the advertisement related with audiovisual condition lastest imformation, this decrypting device is upgraded described audiovisual conditional information based on described audiovisual condition lastest imformation, and allow the described encrypted content of audiovisual by the appointment of described audiovisual conditional information, described audiovisual condition lastest imformation is used to upgrade the valid expiration date by the audiovisual of the described encrypted content of permission of described audiovisual conditional information appointment.
Description of drawings
Fig. 1 illustrates the configuration example according to the audiovisual control device of the first embodiment of the present invention;
Fig. 2 illustrates the configuration example of an advertisement;
Fig. 3 illustrates the configuration example of EMM update request information;
Fig. 4 illustrates the configuration example of EMM before advertisement of spectators' audiovisual;
Fig. 5 illustrates the flow chart that the example of operation is reproduced in the advertisement of being undertaken by this audiovisual control device;
Fig. 6 illustrates the configuration example of EMM after advertisement of spectators' audiovisual;
Fig. 7 is the flow chart of example that illustrates the content playback operation of the encryption of being undertaken by this audiovisual control device;
Fig. 8 illustrates the configuration example according to the audiovisual control device of the second embodiment of the present invention;
Fig. 9 is the flow chart that illustrates according to the operation of this audiovisual control device of the second embodiment of the present invention;
Figure 10 illustrates the configuration example according to the audiovisual control device of the third embodiment of the present invention;
Figure 11 is the flow chart that illustrates according to the operation of this audiovisual control device of the third embodiment of the present invention;
Figure 12 illustrates the configuration example according to the audiovisual control device of the fourth embodiment of the present invention;
Figure 13 is the flow chart that illustrates according to the operation of this audiovisual control device of the fourth embodiment of the present invention;
Figure 14 illustrates the configuration example according to the audiovisual control device of the fifth embodiment of the present invention;
Figure 15 illustrates the configuration example according to the audiovisual control device of the sixth embodiment of the present invention;
Figure 16 illustrates the configuration example according to the audiovisual control device of the seventh embodiment of the present invention;
Figure 17 illustrates the configuration example according to the audiovisual control device of the eighth embodiment of the present invention;
Figure 18 illustrates the configuration example according to the audiovisual control device of the ninth embodiment of the present invention;
Figure 19 illustrates the configuration example according to the audiovisual control device of the tenth embodiment of the present invention;
Figure 20 illustrates the configuration example according to the audiovisual control device of the 11st embodiment of the present invention;
Figure 21 illustrates the configuration example according to the audiovisual control device of the 12nd embodiment of the present invention;
Figure 22 illustrates the configuration example according to the audiovisual control device of the 13rd embodiment of the present invention;
Figure 23 illustrates the configuration example according to the audiovisual control device of the 14th embodiment of the present invention;
Figure 24 illustrates the configuration example according to the audiovisual control device of the 15th embodiment of the present invention;
Figure 25 illustrates the configuration example according to the audiovisual control device of the 16th embodiment of the present invention;
Figure 26 illustrates the configuration example according to the audiovisual control device of the 17th embodiment of the present invention; With
Figure 27 illustrates the configuration example according to the audiovisual control device of the 18th embodiment of the present invention.
Embodiment
To explain embodiments of the invention with reference to the accompanying drawing of following below now.The present invention never is subjected to the restriction of these embodiment, and can realize in the various modes that do not break away from its essence.
(embodiment 1)
The first embodiment of the present invention will be explained the basic structure of audiovisual control device, when audiovisual during advertisement, it allows the audiovisual of content.
Shown in the block diagram among Fig. 1, this device comprises: output advertisement 1011, the content 1012 of encrypting through scrambling and use reproduction/broadcaster 101 of the ECM 1013 that key K w encrypts, use the key K w 1022 of storage to extract the security module 102 of key K s 103 from ECM1013, encrypted content 1012 of use key K s 103 deciphering and output are through the descrambler 104 of the content 105 of deciphering and the display unit 106 of display ads 1011 and the content 105 through deciphering.
Reproduction/broadcaster 101 is a kind of generation advertisement 1011, encrypted content 1012 and ECM1013, and broadcasts and transmit their broadcaster by radio or wire circuit.Reproduction/broadcaster 101 also is a kind of storage, reproduction and the output transcriber from advertisement 1011, encrypted content 1012 and the ECM 1013 of broadcaster reception.This advertisement 1011 comprises EMM update request 10111, and it specifies the valid expiration date as the content of object and this content of permission audiovisual, and this EMM update request 10111 uses key K w 1022 encrypted.In addition, ECM 1013 comprises the information about key K s 103 that is used for descrambled content and expression audiovisual enabled condition, and they use key K w1022 encrypted.
Security module 102 is mounted or is combined in the receiving system, and descrambler 104 constitutes the part of this receiving system.The EMM 1021 and the key K w 1022 that is used to decipher EMM update request 10111 and ECM 1013 of expression content audiovisual condition have been stored in this security module 102.Identical with the situation of conventional system, this EMM 1021 and key K w 1022 are broadcasted in advance and are stored in this security module 102.
Security module 102 further has EMM more new portion 1024 and Ks extraction part 1023.Described EMM more new portion 1024 is when receiving EMM update request 10111, it uses key K w1022 deciphering EMM update request 10111, and relevant EMM update request 10111 is set in EMM 1021 (be that is to say, by the content of EMM update request 10111 appointments, with the relevant information that is used to allow the valid expiration date of this content of audiovisual) information; Described Ks extracts part 1023, it uses key K w 1022 deciphering ECM 1013, be identified in the content of wherein describing, the valid expiration date and the current time that are arranged on this content of permission audiovisual among the EMM 1021 are compared, and when audiovisual is permission, from ECM 1013, extract key K s 103.
This security module 102 is a kind of so-called CAS card (being received as the card of purpose with restriction) or IC-card, and is made of medium, and it can't illegally read and write from the outside with data, and if carry out illegal access will be destroyed.
Notice that certain time that begins in the 10111 given ad airtimes of EMM update request or from time of this ad storage is as the valid expiration date that allows this content of audiovisual.The concluding time of this valid expiration date can be specified particularly, and perhaps certain time period since the current time can be set to a valid expiration date.
To explain the operation of this audiovisual control device below.At first, 101 reproductions of reproduction/broadcaster or broadcasting comprise the advertisement 1011 and the encrypted content 1012 of EMM update request 10111.This advertisement 1011 and encrypted content 1012 are not necessarily side by side reproduced or are broadcasted.When the content that will encrypt 1012 reproduced or broadcasting the time, synchronous with it ECM 1013 reproduced or broadcasting.The advertisement 1011 of this reproduction or broadcasting is displayed on the display unit 106.
In security module 102 EMM 1021 be set to all contents at first can not audiovisual.As the EMM of security module 102 when more new portion 1024 receives EMM update request 10111 in the advertisement 1011 that is included in this demonstration, use this request of key K w 1022 deciphering, and in EMM 1021, be provided with by the specified content of EMM update request EMM 10111 and allow valid expiration date of this content of audiovisual.
Next, Ks extracts part 1023 when receiving ECM 1013, use key K w 1022 deciphering ECM 1013, be identified in the content of wherein describing, the valid expiration date and the current time that are arranged on this content of permission audiovisual among the EMM 1021 are compared, when audiovisual is when allowing, from ECM 1013, extract key K s 103, from security module 102 it is sent.
Descrambler 104 receives encrypted content 1012 and key K s 103, uses the content 1012 of key K s 103 decrypt encrypted, and sends the content 105 through deciphering.These decrypted contents 105 are displayed on the display unit 106.
Audiovisual control by this audiovisual control device, when having only advertisement 1011 when the EMM update request 10111 that comprises this content by audiovisual, and content audiovisual time point dropped in valid expiration date by 10111 appointments of EMM update request, just was allowed to this content of audiovisual.
The EMM update request 10111 that is used for content not only can be included in the advertisement of broadcasting along with this content 1011, and can be included in the advertisement of broadcasting after this content 1011.In this case, the content audiovisual condition that spectators are stored before can satisfying by audiovisual advertisement broadcasting recently or storage is so that spectators can reproduce or this content of audiovisual.
To explain the detailed operation of audiovisual control device that just allows the audiovisual of encrypted content when advertisement during by audiovisual below.
This audiovisual control device has been stored encrypted content 1012, the advertisement 1011 of using key K s 103 to encrypt, key K w 1022 and the ECM1013 that is used to decipher ECM 1013 in reproduction/broadcaster 101.Can also obtain encrypted content 1012, advertisement 1011, key K w 1022 and ECM 1013 perhaps via recording medium via network or broadcasting---such as SD card or DVD etc.---.Not restriction especially of method to obtaining them in the present invention.
Fig. 2 illustrates the example of structure of an advertisement 1011.
Advertisement 1011 is made of advertisement body 1901 and EMM update request information 10111.Use key K w 1022 to encrypt EMM update request information 10111, rewritten by the third party to prevent it.
Fig. 3 illustrates the configuration example of an EMM update request information 10111.
Maintain contract information in the EMM update request information 10111, and by being formed by the information 2002 of the valid expiration date of audiovisual as content ID 2001 contract information, that be used to discern encrypted content with as this content of expression ID2001 of this content information.This valid expiration date was made of time started 2003 and duration 2004, and the time started of the encrypted content that audiovisual represented by this content ID is authorized in described time starteds 2003 expression, and the described duration 2004 is relatively represented the valid expiration date of this audiovisual mandate.Because time started 2003 and duration 2004 are the benchmark that are intended to the advertiser, it is provided with in advance by the center.The content of EMM update request information 10111 is identical with the content of the EMM that uses in current digital broadcasting or the like.Under the situation of EMM update request information 10111 shown in Figure 3, content ID 2001 expression contents " 100 ", time starteds 2003 expression " 2000.01/01 ", and duration 2004 expression " 3 days ".
Below, will explain the content of ECM 1013.The content of ECM 1013 is identical with the content of the ECM that uses in current digital broadcasting or the like, constitutes by being used to discern the content ID2001 of encrypted content and content has been carried out encrypted secret key Ks 103.
To explain the content of EMM 1021 below.The content of EMM 1021 is identical with the content of the EMM that uses in current digital broadcasting or the like, it is made of Contract Information Form, and this contract information can be made of the content ID 2001 and the encrypted content that are used to discern encrypted content that can be decrypted decrypted valid expiration date.
To explain below that in the time of spectators' Audio and video advertisement operation is reproduced in the advertisement of this audiovisual control device and in the time of the encrypted content of spectators' audiovisual, the encrypted content playback of this audiovisual control device is operated.
Fig. 4 illustrates the configuration example of the EMM 1021 before spectators' Audio and video advertisement.
Before this advertisement is by audiovisual, the audiovisual control device allows to have the encrypted content 1012 of the content ID 2301 of " 200 " in audiovisual in 1 day of on January 1st, 2000, and allow to have the encrypted content 1012 of the content ID 2301 of " 300 ", still do not allow the content 1012 of other encryption of audiovisual in audiovisual in 1 day of on January 2nd, 2000.
Below with reference to the flow chart in Fig. 5 explain when spectators under such situation on January 1st, 2000 Audio and video advertisement, operation is reproduced in the advertisement of this audiovisual control device.
Reproduction/broadcaster 101 transmits advertisement 1011 and gives display unit 106.Thus, advertisement 1011 reproduced and these advertisements (step 2101) of spectators' audiovisual.
Next, reproduction/broadcaster 101 transmits the EMM update request information 10111 that is included in the advertisement 1011 and gives security module 102 (step 2102).The EMM of security module 102 more new portion 1024 uses key K w 1022 deciphering EMM update request information 10111 (steps 2103).
In this example, EMM more new portion 1024 writes the contract information of relevant EMM update request information 10111, in the present embodiment, be that " on January 1st, 2000 " and duration 2004 are the contract information (step 2104) of the EMM 1021 of " 3 days " for the content ID that indicates " 100 " 2001, the time started 2003 that writes as shown in Figure 3.Fig. 6 illustrates the state of EMM 1021 after spectators' Audio and video advertisement.
By the EMM EMM 1021 that upgrades based on EMM update request information 1011 of new portion 1024 more, after advertisement is by audiovisual, as shown in Figure 4, the audiovisual control device allows content ID 2301 except the encrypted content 1012 of " 200 " and " 300 ", and content ID 2301 also is allowed to have the encrypted content 1012 of " 100 " for audiovisual in 3 days of on January 1st, 2000.
To use the flow chart in Fig. 7 to explain that the audiovisual control device reproduces the operation of encrypted content when the 2nd day content ID 2301 audiovisual in 2 days January in 2000 of spectators after Audio and video advertisement have the encrypted content of " 100 " below.
Reproduction/broadcaster 101 transmission content ID 2301 are that the encrypted content 1012 of " 100 " is given descrambler 104 (step 2201).
Reproduction/broadcaster 101 transmits ECM 1013 and extracts part 1023 (step 2202) for the Ks of security module 102.Ks extracts the content ID 2301 that part 1023 is used key K w 1022 deciphering ECM 1013 and obtained to describe in ECM 1013.In this example, content ID 2301 obtains " 100 " (step 2203).
Ks extracts part 1023 and checks whether be provided with the contract information (step 2204) of content ID 2301 for " 100 " in EMM 1021.When not having contract information, end the deciphering (step 2205) of this encrypted content.
By contract information, from the EMM shown in Fig. 6 1021, obtain valid expiration date 2302 (step 2206) here, as this contract information.Ks extracts part 1023 and checks that also the current time is whether between time started 2303 of valid expiration date 2302 and (time started 2303+ duration 2304) (step 2207).
When finding that the current time is not between time started 2303 and (time started 2303+ duration 2304), ending content ID 2301 is the deciphering (step 2208) of the encrypted content 1012 of " 100 ".
In this example, the current time is on January 2nd, 2000, and the time started 2303 is on January 1st, 2000, and (time started 2303+ duration 2304) be on January 4th, 2000, current time between, so this process continues.When this current time is between time started 2303 and (time started 2303+ duration 2304) time, and Ks extracts part 1023 and extracts key K s 103 from ECM 1013, and sends it to descrambler 104 (step 2209).When descrambler 104 obtained key K s 103, it used key K s to decipher encrypted content 1012, and sends it to display unit 106 (step 2210).
Notice, though this embodiment for example understands the example of the CAS technology (ECM, EMM) of using digital broadcasting, but the present invention is not limited to the CAS of digital broadcasting and uses, and normally is applicable to the content delivery system of system with the function that system, the system's (being equivalent to EMM) that manages in receiving system that transmits the contract information function is arranged and the transmission key information is arranged and the system's (being equivalent to ECM) that manages in receiving system.
In addition, this embodiment illustrates an example that uses this security module, it is intended to prevent that EMM information and key K w or the like from being altered, and also can use other mode to realize that the information that prevents audiovisual control is altered, and this security module is not the necessary condition of this structure.
In addition, this embodiment illustrate one with security module 102 as for storage or upgrade the example that the processing module of audiovisual condition (such as EMM) is used, but can also use non-safe processing module.
In addition, this embodiment explains under the supposition of image, but advertisement and content can be the mixtures with audio frequency or other data, perhaps also can be that voice data is only arranged.In this case, display unit is as long as it can represent advertisement and content, and any type of equipment can.
Notice that also can use the random time point between the concluding time in advertisement viewing time started and advertisement viewing, perhaps the advertisement acquisition time is as the valid expiration date of calculating audio-visual content fiducial time.
Therefore, before audio-visual content, the audiovisual control device can not be the old advertisement that accumulation and storage are shown, but effective advertisement when being illustrated in audiovisual.Therefore, the advertiser can obtain to be used for to illustrate effectively the means of the new advertisement of commodity or the like, and spectators can pass through the free audio-visual content of Audio and video advertisement simultaneously.In addition, can from the content of broadcasting in the past, bring in ad revenue for content provider.
(second embodiment)
When will explaining Audio and video advertisement from start to end, the second embodiment of the present invention allows the audiovisual control device of audio-visual content.
As shown in Figure 8, in this device, the end of the advertisement 2011 that sends from reproduction/broadcaster 201 comprises and is used further the EMM update request that key K w2 (2025) encrypts after using key K w 2022 to encrypt, and begins to comprise kw2 information 20112 with key K w 2022 encryption key Kw2 (2025) in advertisement 2011.The information content of EMM update request 2 (20111) is identical with the EMM update request 10111 in first embodiment, has described the valid expiration date of the content of object content and permission audiovisual therein.
On the other hand, security module 202 has Kw2 and extracts more new portion 2023 of part 2024 and EMM, Kw2 extracts part 2024 and uses key K w 2022 deciphering Kw2 information 20112, and extract key K w2 (2025), this EMM more new portion 2023 uses key K w2 (2025) deciphering EMM update request 2 (20111), and further use key K w 2022 to be decrypted to it, and with the information setting of the EMM update request 2 (20111) that obtains in EMM 2021.The remainder of this structure is identical (in Fig. 8, some part is omitted such as display unit 106 and descrambler 104) with first embodiment (Fig. 1).
Explain the operation of this audiovisual control device below with reference to Fig. 9.
At first, reproduction/broadcaster 201 reproduces or broadcasts the advertisement 2011 that comprises EMM update request 2 (20111) and Kw2 information 20112, and advertisement 2011 is displayed on the display unit 106 (step 3101).Kw2 information 20112 is reproduced or broadcasting (step 3102) when the beginning of advertisement, and when receiving Kw2 information 20112, Kw2 extracts part 2024 and uses key K w 2022 deciphering Kw2 information 20112 (steps 3103), and extracts key K w2 (2025) (step 3104).
Next, 2 (20111) the reproduced or broadcasting (step 3105) of EMM update request at the end of advertisement, and when receiving EMM update request 2 (20111) (step 3106), EMM more new portion 2023 uses key K w2 (2025) to its deciphering (step 3107), use key K w 2022 deciphering EMM update requests 2 (20111), and in EMM 2021, be arranged on and allow the information (step 3108) of audiovisual within valid expiration date by the content of EMM update request 2 (20111) appointments.
Then, same with first embodiment, based on the demonstration of the information Control content that in EMM 2021, is provided with.
Like this, in the audiovisual control device, if Audio and video advertisement from the beginning to the end not, then can not audio-visual content, thus can guarantee the audiovisual of this advertisement.
(the 3rd embodiment)
The 3rd embodiment will be explained in that advertisement is not fasted forward and from first to last audiovisual the time, allows the audiovisual control device of audio-visual content.
As shown in figure 10, this device comprises the EMM update request 2 (30111) of the advertisement viewing temporal information 301111 of the audiovisual time with expression advertisement 3011.
On the other hand, security module 302 has advertisement viewing time judgement part 3026, it measures the time begin to receiving till the EMM update request 2 (30111) after receiving Kw2 information 30112, and work as measured time and advertisement viewing temporal information 301111 not simultaneously, deletion is arranged on the content audio-visual information among the EMM3021.The remainder of this structure is identical with second embodiment (Fig. 8).
Explain the operation of this audiovisual control device below with reference to Figure 11.
At first, reproduction/broadcaster 301 reproduces or broadcasts the advertisement 3011 that comprises EMM update request 2 (30111) and Kw2 information 30112, and this advertisement is shown (step 4101).EMM update request 2 (30111) comprises the advertisement viewing temporal information 301111 of the audiovisual time of relevant this advertisement.
Kw2 information 30112 is reproduced or broadcasting (step 4102) when the beginning of advertisement, and when receiving Kw2 information 30112 (step 4103), Kw2 extracts part 3024 and uses key K w 3022 deciphering Kw2 information 30112, and extracts key K w2 (3025) (step 4105).The advertisement viewing time is judged the time of receipt (T of R) (step 4104) of part 3026 storage Kw2 information 30112.
Next, 2 (30111) the reproduced or broadcasting (step 4106) of EMM update request at the end of this advertisement, and when receiving EMM update request 2 (30111) (step 4107), EMM more new portion 2 (3023) uses key K w2 (3025) deciphering EMM update request 2 (30111) (step 4109), and to its use key K w 3022 further deciphering, and, in EMM 3021, be arranged within valid expiration date can audiovisual by the information of the content of EMM update request 2 (30111) appointments.The advertisement viewing time is judged the time of receipt (T of R) (step 4108) of part 3026 storage EMM update requests 2 (30111).
Next, the advertisement viewing time judges that part 3026 measures after receiving Kw2 information 30112 to the time that receives till the EMM update request 2 (30111), relatively this Measuring Time and this advertisement viewing temporal information 301111 (step 4110), when both not simultaneously, deletion is arranged on the audio-visual information (step 4111) of the content among the EMM 3021, and when both are consistent, then as under the situation of second embodiment, in EMM 3021, be arranged in valid expiration date can audiovisual the information (step 4112) by the content of EMM update request 2 (30111) appointments.
Then, same with first embodiment, come the demonstration of control content based on the information that in EMM 3021, is provided with.
Like this, because this audiovisual control device is measured the time started of Audio and video advertisement and the time interval between the concluding time, thereby can prevent fasting forward of advertisement or the like.
(the 4th embodiment)
To explain the audiovisual control device of fourth embodiment of the invention below, it not only is provided with the checkpoint at the beginning and the end of advertisement, and in the way of advertisement, the checkpoint is set with certain time interval, and verify the ground audiovisual of between the checkpoint, not fasting forward, allow this content of audiovisual then.
As shown in figure 12, in this device, be included in key information Kcm 40112 that each test point sends and the EMM update request of sending at the end of advertisement 4,011 2 (40111) from the advertisement 4011 of reproductions/broadcaster 401 transmissions.Key information Kcm 40112 is that the different key K cm 4025 that will be provided with on each test point carries out information encrypted, and it is issued with certain interval during the audiovisual of advertisement.At the key information Kcm 40112 of distribution the earliest is to use key K w 4022 to encrypt the information that obtains to the key K cl that is arranged on first test point, and the key information Kcm 40112 of next distribution encrypts the information that obtains to being arranged on the key K cl that is provided with on the test point before the key K c2 priority of use on the next checkpoint.Below similarly, use another key K cm that is arranged on its and then previous test point to encrypt the key K cm that is arranged on each test point, issue successively as key information Kcm 40112.
In addition, EMM update request 2 (40111) uses the key K cm 4025 that is arranged on the last checkpoint further to be encrypted after using key K w 4022 to encrypt.In this EMM update request 2 (40111), describe the effective time of the content of object content and permission audiovisual, and described the issuing date advertisement viewing temporal information 401111 at interval of representing each Kcm information 40112.
On the other hand, security module 402 has Kcm extraction part 4024, EMM more new portion 4023 and advertisement viewing time judgement part 4026.Kcm extracts part 4024 use key K w 4022 and deciphers the Kcm information 40112 extraction key K cm 4025 that send at first, and the Kcm 4025 that use is extracted from and then previous Kcm information 40112 deciphers next and Kcm information of sending subsequently 40112 and extraction key K cm 4025.When receiving EMM update request 2 (40111), EMM more new portion 4023 uses the key K cm 4025 deciphering EMM update requests 2 (40111) of extracting part 4024 last extractions by Kcm, and to its further use key K w 4022 deciphering, and in EMM 4021, be provided with by the content of EMM update request 2 (40111) appointments and the valid period of permission audio-visual content.The advertisement viewing time judges that part 4026 measures after receiving Kcm information 40112 to receiving EMM update request 2 (40111) time between each test point before, and when measured asynchronism(-nization) in advertisement viewing temporal information 401111 time, deletion is arranged on the content audio-visual information among the EMM 4021.The remainder of this structure is identical with second embodiment (Fig. 8).
Explain the operation of this audiovisual control device below with reference to Figure 13.
At first, reproduction/broadcaster 401 reproduces or broadcasts the advertisement 4011 that comprises EMM update request 2 (40111) and Kcm information 40112, and display ads 4011 (step 5101).EMM update request 2 (40111) comprises the advertisement viewing temporal information 401111 of the audiovisual time of relevant this advertisement.
Kcm information 40112 is distribution (step 5102) successively during the reproduction of advertisement or broadcasting, and when Kcm extraction part 4024 is received Kcm information 40112 (step 5103), Kcm information 40112 and extraction key K cm 4025 (steps 5105) of using key K w 4022 deciphering to send at first.Under the sort of situation, the advertisement viewing time is judged the time of receipt (T of R) (step 5104) of part 4026 storage Kcm information 40112.
Similarly, second and follow-up Kcm information 40112, (step 5106) sequentially issues during the reproduction of advertisement or broadcasting, when Kcm extraction part 4024 receives (step 5107), use is decrypted from the key K cm 4025 of and then previous Kcm information extraction, and extracts key K cm 4025 (step 5109) in order.Under the sort of situation, the advertisement viewing time is judged the time of reception (step 5108) of part 4,026 second of storage and follow-up Kcm information 40112 thereof.When the distribution of Kcm information 40112 is different from the distribution at interval that is provided with at interval in advertisement viewing temporal information 401111 when, the advertisement viewing time is judged part 4026 deletion key K cm 4025, so that key K cm4025 subsequently or EMM update request 2 (40111) can't be deciphered.
Next, when EMM update request 2 (40111) the end of advertisement reproduce or broadcasting (step 5110) in, EMM more new portion 2 (4023) receives EMM update request 2 (40111) (step 5111), use is extracted the part 4024 last key K cm that extracts 4025 deciphering EMM update requests 2 (40111) (step 5113) by Kcm, further use key K w 4022 to be decrypted to this information, and in EMM 4021, be arranged on content of describing in the EMM update request 2 (40111) and the valid expiration date that allows audio-visual content.Notice that the advertisement viewing time is judged the time of reception (step 5112) of part 4026 storage EMM update requests 2 (40111).
Next, advertisement viewing time judgement part 4026 is measured after Kcm information 40112 is received to receiving in EMM update request 2 (40111) time before, the time and the advertisement viewing temporal information 401111 of this measurement are compared (step 5114), when they are different, deletion is arranged on the content audio-visual information (step 5115) among the EMM 4021, on the other hand, when both are consistent, then same with the situation of second embodiment, in EMM 4021, be arranged on and allow the information (step 5116) of audiovisual within valid expiration date by the content of EMM update request 2 (40111) appointments.
After this, identical with the situation of first embodiment, come the demonstration of control content based on the information among the EMM 4021 of being arranged on.
Therefore, if this audiovisual control device is not accomplished not carry out fasting forward and a plurality of points in the advertisement all having been carried out audiovisual, just can't obtain to be used for the key of audio-visual content.Therefore, can prevent reliably, and guarantee the audiovisual of this advertisement fasting forward of advertisement or the like.
(the 5th embodiment)
The 5th embodiment will explain a kind of audiovisual control device, and its time that prevents security module is unlawfully changed.
The present invention is provided with the valid expiration date that allows audio-visual content by Audio and video advertisement, but it is very accurate to realize that this system need be used to control time of security module of this valid expiration date.The time of security module, be at all times, normally be constituted as, for example when power connection or the like once a day, proofread and correct by obtain temporal information from the outside, but have a kind of possibility, that is, the time of this security module may unlawfully be changed by intentionally give the information that makes mistake in this correction.In this embodiment, this audiovisual control device can prevent so illegal manipulation.
As shown in figure 14, this device has the time adjustment website 501 of transmission time information, and security module 502, and it receives this temporal information from time adjustment website 501, and proofreaies and correct the information of the current time of relevant storage.Time adjustment website 501 storage key Kw 5012, and have temporal information generating portion 5011, it uses the key K t 5024 that sends from security module 502 to encrypt temporal information, and with its transmission.
On the other hand, security module 502 has key and produces part 5022, and its storage key Kw 5021 and generation randomly are used to encrypt the key K t 5024 of temporal information; With time adjustment part 5023, the temporal information that its deciphering receives from time adjustment website 501, and the time of correction security module 502.
To explain the operation of this audiovisual control device below.At first, when in that this security module is inner when proofreading and correct this current time, key produces part 5022 and produces key K t 5024 randomly, uses key K w 5021 with its encryption, and sends to time adjustment website 501.
Next, the temporal information generating portion 5011 of time adjustment website 501 is when receiving this encrypted secret key Kt 5024, use key K w 5021 to be decrypted, use the key K t 5024 that obtains by deciphering to encrypt the current time of time adjustment website 501, and send it to security module 502.
Next, the time adjustment part 5023 of security module 502 is used the temporal information of key K t 5024 these receptions of deciphering, and proofreaies and correct the time of security module.
Like this, this audiovisual control device can't unlawfully change the time of security module, thereby and control content audiovisual valid expiration date exactly, and guarantee to make the effective advertisement of its audiovisual by audiovisual the time when content.
(the 6th embodiment)
The sixth embodiment of the present invention will be explained a kind of audiovisual control device, and it can at random select the method by the free audio-visual content of Audio and video advertisement, perhaps based on the method by PPV charge audio-visual content.
As shown in figure 15, in this device, reproduction/broadcaster 601 sends the advertisement 6011 that comprises EMM update request 60111, with relevant to buying the necessary amount of money of content audiovisual right and buying the information of the valid expiration date of content audiovisual right and encrypt the PPV information 6012 that obtains by 6022 couples of use key K w.On the other hand, this receiving system has the audiovisual of purchase power operation part 603, it carries out the operation of buying this content audiovisual power, and security module 602 not only has more new portion 6023 of EMM 6021, key K w6022 and EMM, but also has PPV operation part 6024, when buying operation part 603 by the audiovisual right and carrying out in the valid expiration date of buying in appointment operation by the content audiovisual right of PPV information 6012 appointments, PPV operation part 6024 is provided with the information of having bought content audiovisual right in EMM 6021.As EMM when more new portion 6023 is received EMM update request 60111, use key K w 6022 to its deciphering, and in EMM 6021, be arranged on the content of describing in the EMM update request 60111, with the valid expiration date that allows audio-visual content, when but the information that ought buy content audiovisual right was set among the EMM 6021, EMM more new portion 6023 did not carry out this processing.The remainder of this structure is with identical at first embodiment (Fig. 1).
To explain the operation of this audiovisual control device below.At first, 601 reproductions of reproduction/broadcaster or broadcasting comprise the advertisement 6011 and the PPV information 6012 of EMM update request 60111.
When the operation of buying content audiovisual right is when weighing operation part 603 execution by the purchase audiovisual, the PPV operation part 6024 of security module 602 receives the PPV information 6012 of the purchase of relevant this content audiovisual right, use key K w 6022 these information of deciphering, and in the current time is included in by this valid expiration date of this audiovisual right of purchase of PPV information 6012 appointments, the information of having bought this content audiovisual right is set in EMM 6021.
When receiving EMM update request 60111, EMM more new portion 6023 uses key K w 6022 to its deciphering, and when EMM update request 60111 be for be set among the EMM 6021 bought the information of content audiovisual right the time, abandon EMM update request 60111.In other cases, EMM more new portion 6023 in EMM 6021, be provided with by the content of EMM update request 60111 appointments and allow the information of the valid expiration date of audio-visual content.
After this, same with the situation of first embodiment, based on the demonstration that is arranged on the information Control content among the EMM 6021.
Like this, this audiovisual control device allows spectators to replace Audio and video advertisement by the right of buying audio-visual content.In this case, by specify buying the valid expiration date of audiovisual right, can buy the audiovisual right by being arranged on the amount of money that is used to buy the audiovisual right in the up-to-date PPV information.
(the 7th embodiment)
The seventh embodiment of the present invention can obtain the relevant audiovisual control device of the needed advertising message of audio-visual content that is in advance with explaining.
As shown in figure 16, in this device, broadcaster 701 is broadcasted the content broadcasting EPG 7012 that describes content program information in advance, broadcasting comprises the advertisement 7011 of EMM update request 70111 then, through scramble and the content 7013 of encrypting and ECM7014 that content scrambling key and audiovisual condition are encrypted.This EPG 7012 comprises with the content being unit, is that audio-visual content (is included in the advertisement insertion point in the content, and corresponding with the advertisement of answering audiovisual at that point) list information of necessary advertisement, allow the information of the valid expiration date of audio-visual content, with when above-mentioned information is updated, the information 70121 that the advertisement of the site information that this lastest imformation is described is relevant.
Storage is extracted the relevant information 7024 of advertisement with the storage/reproduction device 702 that reproduces the content that will broadcast from the EPG 7012 that is received, and with its storage, and storage comprises advertisement 7021, encrypted content 7022 and the ECM 7023 of the EMM update request 70211 of reception.
To explain the operation of this audiovisual control device below.At first, broadcaster 701 broadcasting EPG7012, storage/reproduction device 702 is stored the relevant information of extracting 7024 of this advertisement from the EPG 7012 of the content that will store.
Next, broadcaster 701 commercials 7011, encrypted content 7013 and ECM 7014, storage/reproduction device 702 receives them separately, and stores advertisements 7021, encrypted content 7022 and ECM 7023.
This storage/reproduction device 702 works as the reproduction/broadcaster 101 among first embodiment (Fig. 1), and when content playback, advertisement 7021, encrypted content 7022 and the ECM7023 of output storage.In addition,, can obtain information from the website of the relevant information 7024 of advertisement, describing for the necessary up-to-date advertisement of audio-visual content when crossing advertisement that valid expiration date stores can not audio-visual content the time, and by this advertisement of broadcast reception.
Therefore, this audiovisual control device can obtain the relevant information of the necessary advertisement of audio-visual content that is in advance, and even when the information of relevant this advertisement is updated, also can obtain to be used to obtain the information of up-to-date advertisement.
(the 8th embodiment)
The eighth embodiment of the present invention will be explained a kind of audiovisual control device, and Cun Chu content or the content that provides with the medium such as DVD are by before the audiovisual in the past, and it obtains to be the necessary advertisement of audio-visual content.
As shown in figure 17, in this device, broadcaster 801 broadcasting comprise the advertisement 8011 of EMM update request 80111, the EPG 8012 of the information 80121 relevant with comprising advertisement, and storage/reproduction device 802 is being stored advertisement 8021, encrypted content 8022, ECM 8023 information 8024 relevant with advertisement of storage in the past.In addition, storage/reproduction device 802 has reservation section 8025, content 8022 that its reservation audiovisual is stored in the past or the content that provides with the medium such as DVD; With advertisement new portion 8026 more, the information 8024 that the advertisement 8021 of its updated stored is relevant with advertisement.Advertisement more new portion 8026 is issued the advertisement information relevant with the advertisement that will upgrade that website 803 acquisitions will be upgraded from broadcaster 801 or advertisement.
To explain the operation of this audiovisual control device below.At first, spectators are by the content of reservation section 8025 reservation audiovisual past storages or the content that provides with the medium such as DVD.
Next, advertisement more new portion 8026 from the relevant information 8024 of the advertisement of the storage of the content of having been preengage audiovisual with reference to valid expiration date information, when time of beginning audiovisual of reservation be after valid expiration date in, with reference to EPG 8012 from broadcaster 801 broadcasting, reservation is stored as the necessary advertisement of audiovisual object content, receives advertisement 8011 and information 8024 that will relevant information 80121, renewal advertisement 8021 and advertisement is correlated with in the advertisement of the time of reservation broadcasting.
In addition, before the audiovisual subscription time of content, do not broadcast in up-to-date advertisement 8011 information relevant 80121 with advertisement, advertisement more new portion 8026 is asked advertisements 8011 information 80121 relevant with advertisement via network from advertisement distribution website 803, obtains them and upgrades advertisement 8021 information 8024 relevant with advertisement.
This storage/reproduction device 802 is as the reproduction/broadcaster among first embodiment 101 work (Fig. 1).
Notice that EPG 8012 can be about content broadcast schedule or advertising broadcast timetable.
Like this, in the time of the content that provides when the content of audiovisual storage in the past or with the medium such as DVD, it is the necessary up-to-date advertisement of this content of audiovisual that this audiovisual control device can obtain before audiovisual.
(the 9th embodiment)
The ninth embodiment of the present invention will be explained in the time of the content of audiovisual through duplicating, and can be the audiovisual control device that condition is carried out audiovisual control with spectators' Audio and video advertisement.
As shown in figure 18, in this device, storage and the storage/ reproduction device 901 and 902 that reproduces content have that control content duplicates duplicates control section 9015 and 9025, and when content when storage/reproduction device 901 duplicates to storage/reproduction device 902, comprise and be stored in copy source storage/reproduction device 901, the advertisement 9011 of EMM update request 90111, the information 9014 that advertisement is relevant, encrypted content 9012 and ECM 9013 are copied to storage/reproduction device 902 (it is to duplicate the destination), and as the advertisement 9021 that comprises EMM update request 90211, the information 9024 that advertisement is relevant, encrypted content 9022 and ECM 9023 storages.
To explain the operation of this audiovisual control device below.At first, when reproducting content, duplicate control section 9025 request and duplicate control section 9015 and go to carry out duplicating of content, perhaps duplicate control section 9015 orders and duplicate control section 9025 and go to carry out duplicating of this content.
Next, duplicate control section 9015 and send advertisement 9011, encrypted content 9012, the ECM 9013 of the content corresponding information 9014 relevant to storage/reproduction device 902 with advertisement.
Next, duplicating control section 9025 stores the information that receives respectively separately as advertisement 9021, encrypted content 9022, information 9024 that ECM 9023 is relevant with advertisement.
This storage/reproduction device 902 is as work (Fig. 1) of the reproduction/broadcaster among first embodiment 101.
Like this, this audiovisual control device also copies as audiovisual control information necessary when its reproducting content, when therefore working as this content of duplicating by audiovisual, just as original content, can be that condition is carried out permission content audiovisual control with the Audio and video advertisement.
(the tenth embodiment)
The tenth embodiment of the present invention will be explained the unified control of content audiovisual control information (EMM update request, the information that advertisement is relevant) the audiovisual control device to the formation group.
The example of the content of formation group comprises series performance and is included in content within similar etc.When the content of identical group by audiovisual the time, the advertiser is by illustrating identical or relevant advertisement, thereby expectation improves advertising effect.
As shown in figure 19, in this device, 1000 storages of advertisement distribution website comprise the information that advertisement is relevant and the group audiovisual control information 1001 of EMM update request, and the information that this advertisement is relevant is the information about the necessary advertisement of content that is used to organize for audiovisual; Group/content the corresponding informance 1002 of the information of the relevant content that belongs to this group; And have audio-visual information generating portion 1003, it generates the necessary EMM update request 1004 of each content information 1005 relevant with advertisement from these information.
To explain the operation of this audiovisual control device below.At first, audio-visual information generating portion 1003 is discerned the content of the group that belongs to identical from group/content corresponding informance 1002, and based on this group audiovisual control information 1001, generates the necessary EMM update request 1004 of each content information 1005 relevant with advertisement.
EMM update request 1004 information relevant with advertisement that is provided for each content is sent to the broadcaster in the 7th embodiment (Figure 16) or the 8th embodiment (Figure 17), and generates the advertisement and the EPG that comprises the information that advertisement is relevant that comprises the EMM update request there.
Like this, this audiovisual control device just there is no need to carry out the content audiovisual control and management to each content, and is easy to the management to the audiovisual control of many contents.
(the 11 embodiment)
The 11st embodiment of the present invention will be explained the audiovisual control device of collecting the advertisement viewing resume.
As shown in figure 20, in this device, except EMM 11021, key K w 11022 and EMM more the new portion 11023, security module 1102 also has history information management part 11024, stores advertisements audiovisual resume, and it is reported to advertisement distribution website 1101, and advertisement distribution website 1101 has the advertisement viewing resume and collects part 11011, its storage is used to decipher the audiovisual record information of reception or the key K w 11012 of encrypted response record information, receives the advertisement viewing resume and returns response.
History information management part 11024 is stored the information of the advertisement of audiovisual, and when the memory block of advertisement viewing record information in security module is filled with or at a certain time interval, the audiovisual number of times of each advertisement is encrypted with Kw 11022 reported to an advertisement and issue a website 1101.In addition, when failing to report the advertisement viewing record information in during the reporting period, it has been considered as implementing certain illegal operation, afterwards come audio-visual content to be under an embargo by advertisement viewing.
To explain the operation of this audiovisual control device below.At first, the audiovisual resume of history information management part 11024 stores advertisements of security module 1102, accumulate the information of the advertisement of audiovisual, and by certain time interval or when the memory block of the advertisement viewing record information in the security module is filled with before this, set more new portion 11023 quiescings of EMM, and use key K w 11022 to encrypt the audiovisual number of times of each advertisement, and send it to advertisement distribution website 1101.
Next, the advertisement viewing resume of advertisement distribution website 1101 are collected the audiovisual number of times that part 11011 is used the advertisement of key K w11012 deciphering reception.When this report be proved to be just when the time, set to allow the more operation of new portion 11023 of EMM, and the response that will delete the order of the advertisement viewing record information of having reported uses key K w 11012 encryptions, and sends to this security module 1102.In addition, advertisement distribution website 1101 is collected advertising expenditure based on collected advertisement viewing number of times from the advertiser.
Received from the security module 1102 of advertisement distribution website 1101 responses and used key K w 11021, and handled according to command execution to its deciphering.
Like this, this audiovisual control device can be grasped the audiovisual situation of advertisement like clockwork.In addition, when not reporting this advertisement viewing record information, can stop the audiovisual of content.
(the 12 embodiment)
The 12nd embodiment of the present invention will be explained the audiovisual control device of collecting the advertisement viewing resume efficiently.
This device is collected the advertisement viewing resume of sample objects, and other the audiovisual situation of advertisement is judged.
As shown in figure 21, in this device, comprise by the EMM update request 120311 of the advertisement 12031 of reproductions/broadcaster 1203 output whether this advertisement viewing record information of expression should be reported to the announcement information 1203111 that website 1201 is issued in advertisement.The announcement information 1203111 of advertisement is provided with by advertisement distribution website 1201.The audiovisual resume of the advertisement that the history information management part 12024 of security module 1202 only will be followed by the announcement information 1203111 of " will report " report to advertisement distribution website 1201.The ranking information 12013 of the likability of each advertisement that other method collects is used in 1201 storages of advertisement distribution website, and with reference to this ranking information 12013, and judges the audiovisual situation of other advertisement from the advertisement viewing record information of being gathered (sampled data).
To explain the operation of this audiovisual control device below.At first, 1203 reproductions of reproduction/broadcaster or broadcasting comprise the advertisement 12031 of EMM update request 120311.Advertisement 12031 is displayed on the display unit.EMM update request 120311 comprises whether the audio-visual information of relevant this advertisement of expression should report to the announcement information 1203111 of advertisement distribution website 1201.
Next, the EMM of security module 1202 more new portion 12023 when receiving EMM update request 120311, use key K w 12022 to its deciphering, and in EMM 12021, be arranged within valid expiration date of appointment and allow the information of audiovisual by the content of EMM update request 120311 appointments.Under the sort of situation, incite somebody to action the information stores of the advertisement of audiovisual in history information management part 12024 with announcement information 1203111.
Next, history information management part 12024 sends the information of audiovisual number of times of the relevant advertisement of being followed by this announcement information 1203111 of " will report " to advertisement distribution website 1201, and the advertisement viewing resume of advertisement distribution website 1201 are collected part 12011 and are received this information, and return response and give security module 1202.Operation during this is identical with the operation in the 11 embodiment.
Next, the advertisement viewing resume are collected the audiovisual counting a of part 12011 based on the advertisement A that has reported, to in ranking information, describe and do not have the audiovisual number of times b of advertisement B of report, and calculate with the rank of the rank of advertisement A and audiovisual number of times and advertisement B and the ratio between the audiovisual number of times b and calculate.
Like this, this audiovisual control device can be collected the information of relevant advertisement viewing resume efficiently.
(the 13 embodiment)
The 13rd embodiment of the present invention will be explained the audiovisual control device, and in the time of the real-time audiovisual of broadcasted content, it allows beginning spectators' audiovisual of this content of audiovisual until this end of text from the way.
From the spectators' advertisement that yes does not have audiovisual to broadcast when this program begins that begins the audiovisual live programme midway.In this case, with spectators not this advertisement of audiovisual be reason and do not allow this program of spectators' audiovisual go a bit too far.This audiovisual control device will be relieved such situation.
As shown in figure 22, in this device, broadcaster 1301 broadcasting comprise the advertisement 13011 of EMM update request 130111 and comprise actual broadcast time and the advertising broadcast time EPG 13012 that encrypt, terminable EMM update request 130121 that uses 13022 pairs of each contents of key K w.Except EMM 13021, key K w 13022 and EMM more the new portion 13023, security module 1302 also has the EMM update request administrative section 13024 that receives terminable EMM update request 130121, use key K w 13022 to its deciphering, and in EMM 13021, be arranged on actual broadcast time of describing in the terminable EMM update request 130121 during allow the information of this content of audiovisual.To explain the operation of this audiovisual control device below.This broadcaster 1301 is broadcasted the EPG 13012 that comprises terminable EMM update request 130121 with encrypted content and ECM, and broadcasts the advertisement 13011 that comprises EMM update request 130111 on the insertion point of advertisement.
When this broadcasts audiovisual halfway, the terminable EMM update request administrative section 13024 of security module 1302 receives EPG 13012, use the wherein terminable EMM update request 130121 of key K w 13022 deciphering, and in EMM 13021, be arranged on the information that allows the content that audiovisual describes during the real-time airtime in terminable EMM update request 130121.Therefore, till the real-time airtime of this content finishes, allow this content of audiovisual.
Next, when the advertisement midway 13011 that is inserted in this program by audiovisual, and EMM is when more new portion 13023 receives EMM update request 130111, EMM more new portion 13023 uses key K w 13022 to its deciphering, and in EMM 13021, be arranged within the valid expiration date of describing in the EMM update request 130111 information of the content that the permission audiovisual is described in EMM update request 130111.At this moment, when limited EMM update request administrative section 13024 has been provided with the content audiovisual time longer than this valid expiration date in EMM 13021 when, just do not carry out based on this setting of EMM update request 130111.
Like this, when from this broadcasting of audiovisual midway, this audiovisual control device allows the content audiovisual until end.But, when broadcasted content is stored, be in this advertisement by audiovisual, after EMM is upgraded by the EMM update request, could this content of audiovisual.
(the 14 embodiment)
The 14th embodiment of the present invention will be explained the audiovisual control device, and its control makes can not jump in the audiovisual of the advertisement of later time point insertion from the spectators that begin this broadcasting of audiovisual midway.
As shown in figure 23, in this device, comprise that the airtime of real-time airtime of using 14022 pairs of each contents of key K w and advertisement encrypts and the relevant information 140121 of encrypted advertisement that obtains from the EPG 14012 of broadcaster 1401 broadcasting, and security module 1402 has encrypted ad related information administrative section 14024, it receives the relevant information 140121 of encrypted advertisement, use key K w 14022 to its deciphering, and in EMM 14021, be provided with from the information of current time up to the content that allows audiovisual the relevant information 140121 of encrypted advertisement, to describe till the next advertisement of broadcasting.The remainder of this structure is identical with the 13 embodiment (Figure 22).
To explain the operation of this audiovisual control device below.Broadcaster 1401 is broadcasted the EPG 14012 that comprises the relevant information of encrypted advertisement 140121 together with encrypted content and ECM, and broadcasts the advertisement 14011 that comprises EMM update request 140111 on the advertisement insertion point.
When this broadcasting is when beginning audiovisual halfway, the encrypted ad related information administrative section 14024 of this security module 1402 receives the relevant information 140121 of encrypted advertisement, use key K w 14022 to its deciphering, and the information that allows the content that audiovisual describes from the current time till next advertisement is broadcasted the relevant information 140121 of encrypted advertisement is set in EMM 14021.Notice, be set at EMM 14021, just do not upgrade in case be used for the audiovisual time of this content.
Next, when the advertisement midway 14011 that is inserted in this program by audiovisual, and EMM is when more new portion 14023 receives EMM update request 140111, EMM more new portion 14023 uses key K w 14022 to its deciphering, and is arranged on the information of this content that the permission audiovisual is described in EMM update request 140111 within the valid expiration date of describing in the EMM update request 140111 in EMM 14021.
Like this, when this broadcasting halfway by audiovisual the time, this audiovisual control device made before next advertisement is broadcasted can this content of audiovisual, and after, unless this advertisement by audiovisual, otherwise just can't this content of audiovisual.Therefore, though this broadcasting begin audiovisual midway, and after audiovisual begins, can make its audiovisual of not crossing advertisement, and continue audio-visual content.
(the 15 embodiment)
The 15th embodiment of the present invention will be explained a kind of audiovisual control device, and it will be that the mode of conditions permit audio-visual content is applied to utilizing the content of a secret key encryption with the Audio and video advertisement.
Use the content of a secret key encryption to be applied to digital copyright management (DRM) at large, and much then encrypt in this way in the content of selling on the internet.
As long as spectators' Audio and video advertisement, then the audiovisual control device of this embodiment allows spectators to go audiovisual to use the content of a secret key encryption, thereby provides the place of effective advertisement to the advertiser, and gives the chance of the free audio-visual content of user.
As shown in figure 24, this device has reproduction or the reproduction of content/broadcaster 1501 of broadcast enciphering, the security module 1502 of decryption content and the display unit 1504 of display ads and content.
The necessary advertisement 15011 of encrypted content 15012, Ks content information 15013 and audio-visual content that reproduction/broadcaster 1501 output uses keys (Ks content) to encrypt, described Ks content information 15013 be with content recognition number and the information that is used for the key K s content of decryption content use that key K w 15022 encrypts information.Advertisement 15011 comprises the specifying information of describing related content and the EMM update request 150111 that allows the valid expiration date of audiovisual, and uses key K w 15022 to encrypt EMM update request 150111.
The content 15012 of this advertisement 15011, Ks content information 15013 and encryption for example, be recorded in together in the recording medium such as DVD, and reproduction/broadcaster 1501 reproduces this recording medium, export advertisement 15011, Ks content information 15013 and encrypted content 15012, perhaps send the information of this reproduction via network.
The EMM 15021 of security module 1502 area definition content audiovisual conditions, key K w 15022 with deciphering EMM update request 150111 and Ks content information 15013, and has more new portion 15024 of EMM, Ks contents extraction part 15025 and descrambler 15023, described EMM more new portion 15024 uses key K w 15022 deciphering EMM update requests 150111, and in EMM 15021, be arranged on the information of the content that the permission audiovisual is described within the valid expiration date of describing in the EMM update request 150111 in EMM update request 150111, described Ks contents extraction part 15025 is used key K w 15022 deciphering Ks content informations 15013, and extract key K s content, and described descrambler 15023 uses the content 15012 of the key K s contents decryption encryption of being extracted by Ks contents extraction part 15025, and the content 1503 of output deciphering.Notice that because encrypted content 15012 is to use a key K s content-encrypt, the leakage of key can cause sizable infringement.For this cause, this device is placed this descrambler 15023 in sensitive security module 1502.
In addition, display unit 1504 shows the content 1503 of the deciphering of exporting from the advertisement 15011 of reproductions/broadcaster 1501 outputs with from security module 1502.
To explain the operation of this audiovisual control device below.At first, 1501 reproductions of reproduction/broadcaster or broadcasting comprise advertisement 15011, encrypted content 15012 and the Ks content information 15013 of EMM update request 150111.Advertisement 15011 is displayed on the display unit 1504.
EMM 15021 initial any contents in security module 1502 all are set to can not audiovisual.When receiving EMM update request 150111, EMM more new portion 15024 uses key K w 15022 to its deciphering, and is arranged on the information of the content that the permission audiovisual is described in EMM update request 150111 within the valid expiration date of describing in this EMM update request 150111 in EMM 15021.
Next, Ks contents extraction part 15025 is used key K w 15022 deciphering Ks content informations 15013, and extracts key K s content.
Next, descrambler 15023 receives encrypted content 15012, the valid expiration date and the current time that are arranged on the content of the permission audiovisual among the EMM 15021 are compared, when allowing audiovisual, use the encrypted content 15012 of key K s contents decryption, and send content 1503 through deciphering.The content 1503 that display unit 1504 shows through deciphering.
Like this, this audiovisual control device can realize allowing the content of the secret key encryption of use that provides on network, is the audiovisual control of the condition audiovisual of carrying out content with the up-to-date advertisement of audiovisual.
(the 16 embodiment)
The 16th embodiment of the present invention will be explained the audiovisual control device, and it can send and receive the decruption key of the content that is used to use a secret key encryption safely.
Here, this embodiment supposes a kind of pattern, and advertisement distribution website transmits the content user of up-to-date advertisement that given on network audiovisual, and this moment, the user can obtain content decryption key from this advertisement distribution website safely.
As shown in figure 25, in this device, distribution is used for the advertisement of the key K s content of audio-visual content and issues website 1601 storage key Kw 16011---and this key K w 16011 is used for the key K s ite of each advertisement distribution website, by using key K w 16011 encryption key Ks ite to produce Ks ite information 16012, use key K s ite to be used for the key K s content of audio-visual content, and produce Ks content information 2 (16013).
On the other hand, except EMM 16021, key K w 16022 and EMM more the new portion 16023, security module 1602 also has Ks ite and extracts part 16025, it uses key K w 16022 deciphering Ks ite information 16012, and extract key K s ite, and providing Ks contents extraction part 16024, it uses by Ks ite and extracts the key K s ite deciphering Ks content information 2 (16013) that part 16025 is extracted, and extracts key K s content.
To explain the operation of this audiovisual control device below.At first, the Ks ite of security module 1602 extracts part 16025 and obtains Ks ite information 16012 from advertisement distribution website 1601, uses key K w 16022 to its deciphering, and extracts key K s ite.
Next, the Ks contents extraction part 16024 of security module 1602 obtains the Ks content information 2 (16013) of content that will audiovisual from advertisement distribution website 1601, uses key K s ite that it is deciphered, and extracts key K s content.
Like this, this audiovisual control device can receive and send the content key that uses a secret key encryption safely on network.Use the key K s content of this extraction to carry out the pattern of audiovisual control identical with in the 15 embodiment.
(the 17 embodiment)
The 17th embodiment of the present invention will be explained a kind of audiovisual control device, even when suspending this content or its part being carried out rewinding and when carrying out the content of the storage of audiovisual randomly, this audiovisual control device can be carried out the control of audiovisual reposefully.
Here, the insertion point of advertisement was set to every 30 minutes, when advertisement is inserted in the beginning of content, after beginning 30 minutes, after beginning 1 hour and after beginning 1 and a half hours each point.In addition, in an EMM update request of this advertisement, the valid expiration date of content audiovisual also was set to 30 minutes.
In this case, by Audio and video advertisement can be before the time that next advertisement is inserted into audio-visual content, therefore, as long as this advertisement is reproduced according to priority with normal speed in the incipient stage, then the audiovisual that can be well on is until this end of text.
But, suspend or playback slowly if during this reproduction of content, carry out, and next advertisement is not reproduced advertisement after passing through in the valid expiration date of content audiovisual yet, then the audiovisual of this content will be interrupted.
In this embodiment, this audiovisual control device can be avoided such situation.
As shown in figure 26, in this device, except the relevant information 17014 (referring to the 7th embodiment) of encrypted content 17012, ECM 17013, advertisement, comprise the advertisement 17011 of the EMM update request 170111 that is inserted on each insertion point, the storage/reproduction device also has advertisement reproducing control section 17015, when content was reproduced, it was according to the reproduction of the sequential control advertisement of describing in the relevant information 17014 of advertisement.The remainder of this structure is with identical at first embodiment (Fig. 1).
To explain the operation of this audiovisual control device below.At first, when reproducing content, storage/reproduction device 1701 reproduces advertisement 17011 (the initial advertisement of describing 17011) and the encrypted content 17012 that comprises EMM update request 170111 in the relevant information 17014 of advertisement.At that time, also reproduced with the synchronous ECM 17013 of encrypted content 17012.Advertisement 17011 is displayed on the display unit 1706.
Pass through (when content is reproduced randomly by the guaranteed time reproducing advertisement by audiovisual for advertisement reproducing control section 17015, such state appears) time, next advertisement does not obtain reproducing, stop the reproduction of encrypted content 17012 and ECM 17013, be reproduced in the next advertisement of describing in the relevant information 17014 of this advertisement 17011, restart the reproduction of this encrypted content 17012 and ECM 17013 then.
The operation of security module 1702 is identical with first embodiment.Under the control of advertisement reproducing control section 17015, advertisement 17011 is reproduced according to the timetable of describing in the relevant information 17014 of advertisement, even therefore when content is reproduced randomly, also can not interrupt and continues this content of audiovisual.
Like this, even be randomly during audio-visual content, this audiovisual control device can realize not causing content audiovisual interruption and carry out audiovisual control.
(the 18 embodiment)
The 18th embodiment of the present invention will be explained the audiovisual control device of carrying out audiovisual control, make it is at random during audio-visual content, and a plurality of advertisements of distributing to content obtain audiovisual liberally.
In the time of the audiovisual randomly of content quilt, if distributing to a plurality of advertisements of this content reproduces according to priority according to the timetable of describing in the relevant information of advertisement, according to the order of audiovisual, the advertisement of high number will tail off compared with its reproduced chance of advertisement of low number.With the example shown in the 17 embodiment is example, and the probability that the advertisement that the likelihood ratio that the advertisement of inserting in an and a half hours after beginning obtains reproducing was inserted after 30 minutes obtains reproducing is low.
In order to eliminate such unfairness, this audiovisual control device of present embodiment is designed to can be reproduced in the advertisement that is inserted into before the position of the content that and then will reproduce when the time of reproducing advertisement when content is reproduced randomly arrives.
As shown in figure 27, in this device, storage/reproduction device 1801 has by being the encrypted content 18012 that unit divides with a content to insert advertisement, according to the corresponding and ECM 18013 of division of corresponding and each encrypted content 18012, comprise EMM update request 180111 and be inserted into the advertisement 18011 of each insertion point, the information 18014 that advertisement is relevant, with advertisement reproducing control section 18015, the information 18014 that described advertisement is relevant comprises the information of relevant advertising listing (being included in the corresponding relation of advertisement insertion point and advertisement that should audiovisual on those aspects in the content), and described advertisement reproducing control section 18015 is when advertisement 18011 is reproduced, with reference to the relevant information 18014 of advertisement, selection was right after before the encrypted content 18012 that will reproduce, the advertisement 18011 that should reproduce, and control the reproduction of this advertisement.The remainder of this structure is identical with first embodiment (Fig. 1).
To explain the operation of this audiovisual control device below.At first, when reproducing content, storage/reproduction device 1801 reproduces advertisement 18011 and the encrypted content 18012 that comprises EMM update request 180111 (will be by the advertisement 18011 of these advertisement reproducing control section 18015 selections, it is as being right after advertisement before the encrypted content 18012 that the relevant information 18014 of reference advertisement will be reproduced, that should reproduce).At that time, also reproduced with the synchronous ECM 18013 of this encrypted content 18012.Advertisement 18011 is displayed on the display unit 1806.
Notice, advertisement reproducing control section 18015 is at the guaranteed time-out by the reproduction of this advertisement, next advertisement can not get reproducing (when content is reproduced randomly, such situation appears) time, stop the reproduction of encrypted content 18012 and ECM 18013, with reference to the relevant information 18014 of advertisement, selection is right after advertisement 18011 before this encrypted content 18012 that will reproduce, that should reproduce, reproduce its advertisement 18011, restart the reproduction of encrypted content 18012 and ECM 18013 then.
The operation of security module 1802 is identical with first embodiment.
Even when content is reproduced randomly, this device reproduces advertisement 18011 under the control of advertisement reproducing control section 18015, so that do not interrupt the audiovisual of content.Because the advertisement of reproducing this moment is to be inserted in to be right after before the encrypted content 18012 that will reproduce, so the number of the reproduction chance that order produced that is not inserted into advertisement just.
Like this, even when being assigned to a plurality of advertisements quilts audiovisual randomly of content, this audiovisual control device can make advertisement obtain audiovisual liberally.
Noticing, as long as canned data is stored in the recording medium such as DVD in the transcriber of each embodiment, can be the audiovisual control of content of condition by reproducing that this DVD carries out with the Audio and video advertisement just.For example, the information of the encrypted content of record, key, advertisement and the valid expiration date of relevant this content of permission audiovisual in recording medium for this content of deciphering, perhaps in valid expiration date when expired, the relevant information of advertisement of the destination of the up-to-date advertisement that should obtain by record expression, then when content is reproduced, just can make the up-to-date advertisement of its audiovisual.Therefore, this recording medium can become the new medium of advertisement.
As in the explanation from the above description clearly, above-mentioned audiovisual control device can be carried out the audiovisual control of content, when having made when audiovisual advertisement, just can audio-visual content.Therefore, spectators are for free audio-visual content, this advertisement of audiovisual that will be certain.In addition, owing to make it be provided with valid expiration date by audio-visual content by Audio and video advertisement, so time just necessary up-to-date advertisement of audiovisual in this valid expiration date in order to make the content audiovisual.Therefore, carried out the desired advertisement viewing of advertiser.In addition, this contents producer can be that object obtains advertising expenditure with the content of past making.
In addition, if can also carry out not from first to last Audio and video advertisement, audiovisual control that then can not audio-visual content is to guarantee the audiovisual of advertisement.
As mentioned above, an aspect of this audiovisual control device of the present invention is a kind of audiovisual control device, it comprises having the more processing module of new portion of memory cell and first, and described cell stores comprises the audiovisual conditional information of the content identification information and the valid expiration date of the audiovisual of expression permission content; Described first more new portion when reproducing the advertisement related with the audiovisual condition lastest imformation of this audiovisual conditional information of renewal, update stored in audiovisual conditional information in this memory cell based on this audiovisual condition lastest imformation, processing module is controlled this reproduction of content based on this audiovisual conditional information.
This structure can make spectators for free audio-visual content, and guarantees this advertisement of audiovisual.In addition, owing to allow the audiovisual of content to be provided with valid expiration date by Audio and video advertisement, so the up-to-date advertisement of audiovisual must make the audiovisual time of content in valid expiration date.As a result, just can carry out according to the advertisement of advertiser's view desiring.In addition, contents producer can be that object brings in advertising expenditure with the content that produces in the past.
In addition, this processing module is made of security module.
This structure can make the audiovisual condition store safely and reliably or upgrade.
In addition, the valid expiration date of this content is with absolute time or relative time appointment.
This structure can be specified the valid expiration date of this content with absolute time or relative time.
In addition, with the time point arbitrarily the concluding time from the advertisement viewing time started to advertisement viewing, perhaps the time that obtains with advertisement is benchmark, from the valid expiration date of the audiovisual of the described permission content represented with relative time, produce the valid expiration date of the audiovisual of the described permission content of representing with absolute time.
This structure can make the designated conversion with relative time be the appointment with absolute time.
In addition, the formation of audiovisual condition lastest imformation is the valid expiration date of the advertisement that comprises that expression is relevant, with the relevant information of the advertisement of obtaining the destination of the up-to-date advertisement that should obtain when over and done with in this valid expiration date.
This structure can make up-to-date advertising message obtained and provide.
In addition, constitute content or advertisement can be obtained via broadcasting, communication or recording medium.
This structure can make content or advertisement obtain via broadcasting, communication or recording medium.
In addition, content or advertisement constitute storage in advance.
This structure can make content or advertisement store in advance and reproduce.
In addition, content, audiovisual condition lastest imformation or this audiovisual conditional information can constitute encrypted.
This structure can make content, audiovisual condition lastest imformation or audiovisual conditional information be stored safely and reliably.
In addition, its processing module of the present invention also constitutes and comprises that further first extracts part, when the reproduction of advertisement begins, second key that comprises in the described advertisement is deciphered and extracted to first Public key with prior storage, described first more new portion when the reproduction of described advertisement finishes, use this second Public key to decipher this audiovisual condition lastest imformation and upgrade this audiovisual conditional information.
Carry out audiovisual control by this structure, can be so that if Audio and video advertisement from first to last not, then can not audio-visual content, guarantee the audiovisual of this advertisement.
In addition, described first new portion more, when the reproduction of described advertisement begins, received behind described second Public key and when the reproduction of described advertisement finishes, to have received advertisement viewing temporal information that the original reproduction of institute's elapsed time and expression advertisement before the described audiovisual condition lastest imformation shows the time not simultaneously, do not upgraded described audiovisual conditional information.
Such formation can be carried out the measurement in the time interval between start and end time of advertisement viewing, thereby can prevent fasting forward of advertisement or the like.
In addition, processing module of the present invention also has second and extracts more new portion of part and second, described second extracts part inserts whenever advance a plurality of advertisements that scheduled volume inserts of the reproduction of described advertisement first advertisement of inserting the earliest the keys and inserts key and be decrypted and extract with described first public keys from described advertisement, and second advertisement insertion key that inserts after key is inserted in described first advertisement is decrypted and extracts with described first advertisement insertion key; Described second more new portion when the reproduction of described advertisement finishes, insert secret key decryption audiovisual condition lastest imformation and upgrade this audiovisual conditional information with last advertisement of inserting advertisement.
Because this structure, spectators are not fasted forward and make its whole a plurality of points of in advertisement, being provided with of audiovisual, then can not obtain the key of audio-visual content.Therefore, guarantee to prevent fasting forward of advertisement or the like, guarantee that advertisement obtains audiovisual.
In addition, described processing module also has advertisement viewing time judgement part; The decrypted time interval of keys is inserted in described a plurality of advertisements to described advertisement viewing time judgement part and key is decrypted afterwards to the decrypted institute's elapsed time before of described audiovisual condition lastest imformation, compare separately with the reproduction that makes described advertisement required time of the amount of decision in advance of advancing, through relatively be both sides not simultaneously, do not upgrade described audiovisual conditional information.
Because this structure, spectators are not fasted forward and make its whole a plurality of points of in advertisement, being provided with of audiovisual, then can not obtain the key of audio-visual content.This guarantees to prevent fasting forward of advertisement or the like, guarantees that advertisement obtains audiovisual.
In addition, when content was replicated, the advertisement that can make content obtain audiovisual was also duplicated together.
Structure thus when can work as the content of duplicating by audiovisual, is the same audiovisual control of condition with the Audio and video advertisement.
In addition, in the application's audiovisual control device, audiovisual conditional information or this audio-visual information lastest imformation and one group of relevance.
This structure can be formed content one group of management of carrying out audiovisual control.
In addition, in audiovisual control device of the present invention, when reproducing content, in audiovisual reproduce described content after the advertisement of audiovisual of described permission content.According to this configuration, can make it before reproducing content, reproduce the advertisement that allows audio-visual content.
The application is that its whole content is included in this based on the Japanese patent application No.2004-177584 that submits in the Japanese patent application No.2003-174785 that submitted on June 19th, 2003 and on June 15th, 2004.
Industrial applicibility
Can carry out content according to audiovisual control device of the present invention, audiovisual control program and safety means looks Listen control, so that when advertisement by audiovisual the time, content just can audiovisual, thereby generation guarantees that spectators are Free audio-visual content and the effect of Audio and video advertisement, and be suitable for being used for the control broadcasted content or depositing Use in the audiovisual control device of the audiovisual of the content of storage, audiovisual control program and the safety means.

Claims (18)

1. audiovisual control device comprises having the memory cell and the processing module of new portion more,
The audiovisual conditional information of the valid expiration date of the audiovisual of described cell stores content identification information and the described content of expression permission;
When reproducing the advertisement related with audiovisual condition lastest imformation, described more new portion upgrades the described audiovisual conditional information of storing in the described memory cell based on described audiovisual condition lastest imformation, and described audiovisual condition lastest imformation is used to upgrade described audiovisual conditional information;
Described processing module is controlled described reproduction of content based on described audiovisual conditional information.
2. according to the audiovisual control device of claim 1, described processing module is a security module.
3. according to the audiovisual control device of claim 1, the valid expiration date of the audiovisual of described permission content is with absolute time or relative time appointment.
4. according to the audiovisual control device of claim 3, being benchmark to the time point arbitrarily of advertisement viewing the finish time from advertisement viewing zero hour, perhaps the time that obtains with advertisement is benchmark, generates the valid expiration date of the audiovisual of the described permission content of representing with absolute time from valid expiration date of the audiovisual of the described permission content represented with relative time.
5. according to the audiovisual control device of claim 1, described audiovisual condition lastest imformation further comprises the valid expiration date of advertisement and the information in the acquisition source of the up-to-date advertisement that should obtain when over and done with in the valid expiration date of described advertisement.
6. according to the audiovisual control device of claim 1, described content or described advertisement obtain via communication.
7. according to the audiovisual control device of claim 1, described content or described advertisement obtain via broadcasting or recording medium.
8. according to the audiovisual control device of claim 1, store described content or described advertisement in advance.
9. according to the audiovisual control device of claim 1, described content, described audiovisual condition lastest imformation or described audiovisual conditional information are encrypted.
10. according to the audiovisual control device of claim 1,
Described processing module comprises that further first extracts part,
When the reproduction of described advertisement began, described first extracted first Public key deciphering of the storage earlier of partly acting and extracts second Public key that comprises in the described advertisement,
When the reproduction of described advertisement finished, described more new portion used described second Public key to decipher described audiovisual condition lastest imformation and upgrades described audiovisual conditional information.
11. audiovisual control device according to claim 10, received when the reproduction of described advertisement begins behind described second Public key and to have received advertisement viewing temporal information that the original reproduction of institute's elapsed time and the described advertisement of expression before the described audiovisual condition lastest imformation shows the time not simultaneously when the reproduction of described advertisement finishes, described more new portion does not upgrade described audiovisual conditional information.
12. according to the audiovisual control device of claim 10,
Described processing module also has second and extracts part,
Described second extracts part inserts whenever advance a plurality of advertisements that a scheduled volume inserts of the reproduction of described advertisement first advertisement of inserting the earliest the keys and inserts key and be decrypted and extract with described first public keys from described advertisement, and second advertisement insertion key that inserts after key is inserted in described first advertisement is decrypted and extracts with described first advertisement insertion key;
When the reproduction of described advertisement finished, described more new portion inserted the described audiovisual condition of secret key decryption lastest imformation with last advertisement of inserting advertisement, and upgrades described audiovisual conditional information.
13. according to the audiovisual control device of claim 12,
Described processing module also has advertisement viewing time judgement part;
Described advertisement viewing time judge part will described a plurality of advertisements insert the decrypted time interval of keys and from the advertisement of last insertion advertisement insert key decrypted after the decrypted institute's elapsed time before of described audiovisual condition lastest imformation extremely, compare separately with the reproduction that makes described advertisement required time of the amount of decision in advance of advancing, through relatively be both sides not simultaneously, do not upgrade described audiovisual conditional information.
14., when duplicating described content, duplicate the advertisement that allows described content audiovisual simultaneously according to the audiovisual control device of claim 1.
15. according to the audiovisual control device of claim 1, described audiovisual conditional information or described audiovisual condition lastest imformation are relevant with the content that constitutes same group.
16. according to the audiovisual control device of claim 1, when reproducing described content, in audiovisual allow to reproduce described content after the advertisement of audiovisual of described content.
17. an audiovisual control method, it comprises:
The step of the audiovisual conditional information of the valid expiration date of the audiovisual of memory contents identifying information and the described content of expression permission;
When reproducing the advertisement related with audiovisual condition lastest imformation, upgrade the step of described audiovisual conditional information based on described audiovisual condition lastest imformation, described audiovisual condition lastest imformation is used to upgrade described audiovisual conditional information; With
Control the step of described reproduction of content based on described audiovisual conditional information.
18. a security module comprises:
Memory cell, memory contents audiovisual conditional information, described content audiovisual conditional information are specified the valid expiration date as the audiovisual of the encrypted content of audiovisual object and the encrypted content of permission;
Decrypting device based on the described valid expiration date by the appointment of described audiovisual conditional information, is deciphered and is reproduced described encrypted content;
When reproducing the advertisement related with audiovisual condition lastest imformation, described decrypting device is upgraded described audiovisual conditional information based on described audiovisual condition lastest imformation, and allows the described encrypted content of audiovisual by the appointment of described audiovisual conditional information,
Described audiovisual condition lastest imformation is used to upgrade the valid expiration date by the audiovisual of the described encrypted content of permission of described audiovisual conditional information appointment.
CN200480023724A 2003-06-19 2004-06-21 Viewing control apparatus, viewing control program, and secure module Expired - Fee Related CN100579200C (en)

Applications Claiming Priority (4)

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JP2003174785 2003-06-19
JP177584/2004 2004-06-15
JP177584/2003 2004-06-15

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