CN1839630A - 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
CN1839630A
CN1839630A CN 200480023724 CN200480023724A CN1839630A CN 1839630 A CN1839630 A CN 1839630A CN 200480023724 CN200480023724 CN 200480023724 CN 200480023724 A CN200480023724 A CN 200480023724A CN 1839630 A CN1839630 A CN 1839630A
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China
Prior art keywords
content
advertisement
information
watch
key
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Granted
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CN 200480023724
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CN100579200C (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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Publication of CN1839630A publication Critical patent/CN1839630A/en
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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

Viewing control apparatus, viewing control program and security module
Technical field
The present invention relates to the storage medium of a kind of viewing control apparatus of watching, viewing control program, security module and recorded content of controlling broadcasted content or memory contents or the like, especially, relate to watching under the condition of advertisement and allow view 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 is viewed when 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 is used an encryption key (scrambling key) Ks and encrypts (scramble), be broadcasted then, and comprise programme information about this scrambling key Ks information (ECM: using ECM) and the program viewing condition be used working key Kw with this content and encrypt, be broadcasted then.Upgraded this scrambling key Ks every several seconds.
On the other hand, the receiving system of having signed the user who watches 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.
When the user watched broadcasted content, by the ECM of Kw deciphering by this receiving system reception, and it judged whether the EMM contract terms satisfy this program viewing condition that is included among the ECM.When they satisfy this condition, perhaps when the program purchasing process is performed under PPV, uses this Kw to decipher the Ks that is included among the ECM, and use this Ks to separate the content of this reception of scramble.
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 scramble ground from the advertiser.The spectators that receive this content can exchange this content of view for free for to watch this advertisement.
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 viewed then, therefore, and normally such situation, even when content was followed an advertising broadcast, spectators skipped this advertisement, and only reproduce and view 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 watching of the advertisement that is designed to promote broadcast and storage.This method allows the user to go by watching advertisement to rent a broadcast receiving apparatus with low cost.When the user reproduced and watches an advertisement of having broadcasted and having stored, its history was recorded in the hard disk, and notifies an advertisement to send the position, and according to reproducing and watching the time of this advertisement to give a discount for the rental that goes out of 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 can this content of view for free.But, in recent years, memory contents and allow user's skip advertisements and only reproduce content wherein at the watching 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 to watch storage, watch an old advertisement of storing in the past and broadcasting to satisfy advertiser's expectation.
On the other hand, the method for when content is stored or watches content being kept accounts need be collected expense from each spectators, and this causes being used to collecting the problem of the cost of this expense.In addition since before content is viewed 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 a kind of being used for and allow spectators to remove the recording medium or the like of viewing control apparatus, viewing control program, security module and this content of record of view content watching under the condition of advertisement.
In order to obtain above-described purpose, one aspect of the present invention is to constitute a kind of viewing control apparatus, with box lunch be used to upgrade this watch conditional information watch the relevant advertisement of condition lastest imformation reproduced the time, the conditional information of watching of watching valid expiration date of memory contents identifying information and this content of expression in processing module, watch the condition lastest imformation to upgrade partial update based on this and be stored in this processing module this and watch conditional information, and watch conditional information to control this reproduction of content based on this via one.Notice that this specification is incited somebody to action respectively or its combination relates to the various devices that are involved in content viewing control as " viewing control apparatus ", sends the position such as equipment, security module, time adjustment position, advertisement.
In addition, another aspect of the present invention is to constitute viewing control program in so a kind of mode, promptly, when be used to upgrade this watch conditional information watch the relevant advertisement of condition lastest imformation reproduced the time, the conditional information of watching of watching valid expiration date of Computer Storage content identification information and this content of expression, watch the conditional information of watching of condition lastest imformation updated stored based on this, and watch conditional information to control this reproduction of content based on this.
In addition, in another aspect of the present invention, the content of the encrypted content that a kind of security module storage representation will be watched watch conditional information and valid expiration date, before this valid expiration date, the content of this encryption can be viewed, and the content of deciphering this encryption based on this valid expiration date of being watched conditional information to represent by this is to reproduce.And this security module be configured when advertisement when watching the condition lastest imformation relevant, go to watch the condition lastest imformation to upgrade this and watch conditional information based on this, and make to watch by this and watch the content of this encryption that the condition lastest imformation represents to become possibility, this watches the condition lastest imformation to upgrade the valid expiration date of being watched this encrypted content that conditional information represents by this.
Description of drawings
Fig. 1 illustrates the configuration example according to the viewing control apparatus 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 spectators watch an advertisement;
Fig. 5 illustrates the flow chart that the example of operation is reproduced in the advertisement of being undertaken by this viewing control apparatus;
Fig. 6 illustrates the configuration example of EMM after spectators watch an advertisement;
Fig. 7 is the flow chart of example that illustrates the content playback operation of the encryption of being undertaken by this viewing control apparatus;
Fig. 8 illustrates the configuration example according to the viewing control apparatus of the second embodiment of the present invention;
Fig. 9 is the flow chart that illustrates according to the operation of this viewing control apparatus of the second embodiment of the present invention;
Figure 10 illustrates the configuration example according to the viewing control apparatus of the third embodiment of the present invention;
Figure 11 is the flow chart that illustrates according to the operation of this viewing control apparatus of the third embodiment of the present invention;
Figure 12 illustrates the configuration example according to the viewing control apparatus of the fourth embodiment of the present invention;
Figure 13 is the flow chart that illustrates according to the operation of this viewing control apparatus of the fourth embodiment of the present invention;
Figure 14 illustrates the configuration example according to the viewing control apparatus of the fifth embodiment of the present invention;
Figure 15 illustrates the configuration example according to the viewing control apparatus of the sixth embodiment of the present invention;
Figure 16 illustrates the configuration example according to the viewing control apparatus of the seventh embodiment of the present invention;
Figure 17 illustrates the configuration example according to the viewing control apparatus of the eighth embodiment of the present invention;
Figure 18 illustrates the configuration example according to the viewing control apparatus of the ninth embodiment of the present invention;
Figure 19 illustrates the configuration example according to the viewing control apparatus of the tenth embodiment of the present invention;
Figure 20 illustrates the configuration example according to the viewing control apparatus of the 11st embodiment of the present invention;
Figure 21 illustrates the configuration example according to the viewing control apparatus of the 12nd embodiment of the present invention;
Figure 22 illustrates the configuration example according to the viewing control apparatus of the 13rd embodiment of the present invention;
Figure 23 illustrates the configuration example according to the viewing control apparatus of the 14th embodiment of the present invention;
Figure 24 illustrates the configuration example according to the viewing control apparatus of the 15th embodiment of the present invention;
Figure 25 illustrates the configuration example according to the viewing control apparatus of the 16th embodiment of the present invention;
Figure 26 illustrates the configuration example according to the viewing control apparatus of the 17th embodiment of the present invention; With
Figure 27 illustrates the configuration example according to the viewing control apparatus 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 viewing control apparatus, and when an advertisement was viewed, it allowed view content.
Shown in the block diagram among Fig. 1, this device provides the content 1012 of output advertisement 1011, scramble encryption and uses reproduction/broadcaster 101 of the ECM 1013 of key K w encryption, use the key K w 1022 of storage to extract the security module 102 of key K s 103 from ECM 1013, use the scramble decoder 104 of the content 1012 of key K s 103 enabling decryption of encrypted and the content 105 that output is deciphered and the display unit 106 of the display ads 1011 and the content 105 of deciphering.
Reproduction/broadcaster 101 is a kind of content 1012 and ECM 1013 that produce advertisement 1011, encrypt, and broadcasts and transmit their broadcaster by radio or wire circuit.The transcriber of content 1012 that reproduction/broadcaster 101 also is a kind of storage, reproduction and output advertisement 1011, encrypt and the ECM 1013 that receives from this broadcaster.This advertisement 1011 comprises EMM update request 10111, its intended target content and a valid expiration date that allows to watch this content, and this EMM update request 10111 uses key K w 1022 encrypted.In addition, ECM 1013 comprises about being used for content and goes to disturb and watch the information of the key K s 103 of enabled condition, and they use key K w 1022 encrypted.
Security module 102 is mounted or is incorporated in the receiving system, and scramble decoder 104 forms the part of this receiving system.The EMM 1021 of these security module 102 storage representation content viewing conditions and the key K w 1022 that is used to decipher EMM update request 10111 and ECM 1013.As under 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 is further provided with more new portion 1024 of EMM, when receiving EMM update request 10111, it uses key K w 1022 deciphering EMM update requests 10111, and relevant EMM update request 10111 is set in EMM1021 (be that is to say, content by 10111 appointments of EMM update request, with the relevant information that is used to allow watch the valid expiration date of this content) information, and provide Ks and extract part 1023, it uses key K w 1022 deciphering ECM 1013, be identified in the content of wherein describing, watch this valid expiration date and the current time of this content to compare with being arranged on allowing among the EMM 1021, and, from ECM 1013, extract key K s103 when watching when being admissible.
This security module 102 is a kind of so-called CAS card (card that designs for conditional access) or IC-card, and is generated with medium, and it prevents data from illegally the reading and writing of outside, and it is destroyed when carrying out illegal access.
Notice, EMM update request 10111 specify an advertising broadcast time or certain time of beginning from time of this ad storage as a valid expiration date that allows to watch this content.The concluding time of this valid expiration date can be specified particularly, and perhaps certain time since the current time can be set to a valid expiration date.
To explain the operation of this viewing control apparatus below.At first, 101 reproductions of reproduction/broadcaster or broadcasting comprise the advertisement 1011 of EMM update request 10111 and the content 1012 of encrypting.This advertisement 1011 and the content 1012 of encrypting are side by side reproduced inevitably or are broadcasted.When the content of encrypting 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.
It is unavailable that EMM 1021 is provided with all contents at first in security module 102.During EMM update request 10111 in receiving the advertisement 1011 that is included in this demonstration, the EMM of security module 102 more new portion 1024 uses this request of key K w 1022 deciphering, and this content and a valid expiration date that allows to watch this content by EMM update request EMM 10111 appointments are set in EMM 1021.
Next, when receiving ECM 1013, Ks extracts part 1023 and uses key K w 1022 deciphering ECM 1013, be identified in this content of wherein describing, watch this valid expiration date and the current time of this content to compare with being arranged on allowing among the EMM 1021, from ECM 1013, extract key K s103, and when watching when being permission, it is sent out from security module 102.
Scramble decoder 104 receives content 1012 and the key K s 103 that encrypts, and uses the content 1012 of key K s 103 these encryptions of deciphering, and sends the content 105 of deciphering.The content 105 of these deciphering is displayed on the display unit 106.
Have only when the advertisement 1011 of the EMM update request 10111 that comprises this content is viewed, watch control to allow to watch this content by this of this viewing control apparatus, and this content viewing time point dropped in this valid expiration date by 10111 appointments of EMM update request.
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, watch advertisement nearest broadcasting or storage to satisfy this and watch condition, and might make spectators go to reproduce or watch this content.
To explain the detailed operation of this viewing control apparatus below, when an advertisement was viewed, it makes watched the content of this encryption to become possibility.
This viewing control apparatus is stored content 1012, the advertisement 1011 of using the encryption that key K s 103 encrypts, key K w 1022 and the ECM 1013 that is used to decipher ECM 1013 in reproduction/broadcaster 101.Can also obtain content 1012, advertisement 1011, key K w 1022 and the ECM 1013 of encryption via network or broadcasting, perhaps via recording medium---such as SD card or DVD---.The method that obtains them is not limited in the present invention especially.
Fig. 2 illustrates the example of structure of this 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.
EMM update request information 10111 store contract information, and form by the content ID 2001 of the content that is used to discern encryption with as the information 2002 of valid expiration date that this content of expression ID 2001 of this content information can be viewed.This valid expiration date was made of time started 2003 and duration 2004, and the time started of the content of watching this encryption of being represented by this content ID is authorized in this time starteds 2003 expression, and this duration 2004 is relatively represented the valid expiration date that this watches mandate.Because time started 2003 and duration 2004 are the benchmark that are intended to the advertisement promoter, and in being preset in the heart.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, and constitutes by the content ID2001 of the content that is used to discern encryption with by means of the encrypted key K s 103 of its this content.
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, and constitute by a series of contract information, and this contract information can be made of content ID 2001 and an encrypted content of the content that is used to discern encryption that can be decrypted decrypted valid expiration date.
To explain below that when spectators watch an advertisement operation is reproduced in the advertisement of this viewing control apparatus and when spectators watched the content of encryption, the content playback of the encryption of this viewing control apparatus was operated.
Fig. 4 illustrates the configuration example of EMM 1021 before spectators watch an advertisement.
Before this advertisement is viewed, this viewing control apparatus allows the content 1012 in the encryption of the content ID 2301 that watches having " 200 " in 1 day of on January 1st, 2000, and allow content 1012, still the content 1012 that does not allow to watch other encryption in the encryption of the content ID 2301 that in 1 day of on January 2nd, 2000, watches having " 300 ".
Work as spectators under such situation when on January 1st, 2000 was watched an advertisement below with reference to the explanation of the flow chart in Fig. 5, operation is reproduced in the advertisement of this viewing control apparatus.
Reproduction/broadcaster 101 transmits advertisement 1011 and gives display unit 106.In this way, the reproduced and spectators of advertisement 1011 watch this advertisement (step 2101).
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, the contract information of EMM 1021 that has the content ID 2001 of " 100 ", the duration 2004 (step 2104) of the time started 2003 in " on January 1st, 2000 " and " 3 days " shown in Figure 3.
Fig. 6 illustrates the state of EMM 1021 after spectators watch advertisement.
After this advertisement is viewed, according to by the EMM EMM 1021 that upgrades based on EMM update request information 1011 of new portion 1024 more, except the content 1012 of the encryption of as shown in Figure 4 the content ID2301 with " 200 " and " 300 ", this viewing control apparatus allows the content 1012 for the encryption of the content ID 2301 that watches having " 100 " in 3 days of on January 1st, 2000.
To use the flow chart in Fig. 7 to explain in the content of this encryption of 2000 year January 2 day watching content ID 2301 with " 100 " of spectators after spectators watch this advertisement the operation of the content playback of the encryption of this viewing control apparatus below.
Reproduction/broadcaster 101 transmits the content 1012 of the encryption of the content ID 2301 with " 100 " and gives scramble decoder 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, the content ID 2301 obtained (step 2203) of " 100 ".
Ks extracts part 1023 and checks whether the contract information of the content ID 2301 of relevant " 100 " is set among the EMM 1021 (step 2204).When not having contract information, the deciphering of the content of this encryption is suspended (step 2205).
Here, if this contract information is found, valid expiration date 2302 is used as this contract information and obtains (step 2206) from the EMM shown in Fig. 6 1021.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).
The current time not between time started 2303 and (time started 2303+ duration 2304) found the time, the deciphering of content 1012 of encryption with the content ID 2301 of " 100 " is suspended (step 2208).
In this example, this current time is on January 2nd, 2000, and the time started 2303 is on January 1st, 2000, and should (time started 2303+ duration 2304) be on January 4th, 2000, and this current time is found between the two, so this process continues.When this current time was found between time started 2303 and (time started 2303+ duration 2304), Ks extracted part 1023 and extracts key K s 103 from ECM 1013, and sends it to scramble decoder 104 (step 2209).When scramble decoder 104 obtained key K s 103, it used key K s to decipher the content 1012 of this encryption, and sends it to display unit 106 (step 2210).
Notice, though this embodiment for example understands the example that uses digital broadcasting CAS technology (ECM, EMM), but the present invention is not limited to the CAS of digital broadcasting and uses, and normally be applicable to have the system that transmits contract information, the receiving system inner control its system's (being equivalent to EMM) and transmit the system of key information and at its content distribution system of system's (being equivalent to ECM) of receiving system inner control.
In addition, this embodiment illustrates an example that uses this security module, it is intended to prevent the infringement of EMM information and key K w or the like, and it also is possible concerning preventing to damage relevant the use the information that different system watches control, 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 the example that uses of the processing module of upgrading to watch condition (such as EMM), 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 voice data only.In this case, display unit can be to represent any equipment of advertisement and content with its form.
Notice, see that for using at view of advertisement beginning time and advertisement watch the random time point between the concluding time, perhaps the advertisement acquisition time also is possible as the reference Time Calculation is used for valid expiration date of view content.
Therefore, before view content, this viewing control apparatus can illustrate neither one accumulation and old advertisement storage, but effective advertisement when watching.Therefore, the advertiser can obtain to be used for to illustrate effectively the device of the new advertisement of commodity or the like, and spectators can be by watching this advertisement view for free content simultaneously.In addition, content provider can bring in ad revenue from the content of broadcasting in the past.
(second embodiment)
The second embodiment of the present invention will be explained when the viewing control apparatus that begins to allow view content from it when advertisement is watched in end.
As shown in Figure 8, in this device, the end of the advertisement 2011 that sends from reproduction/broadcaster 201 comprises the EMM update request of using key K w 2022 to encrypt, it is used further key K w2 (2025) and encrypts, and advertisement 2011 begin to comprise kw2 information 20112, it is to use key K w2022 encrypted secret key Kw2 (2025).The information content of EMM update request 2 (20111) is identical with the EMM update request 10111 in first embodiment, and describes object content and allowed to watch the valid expiration date of this content before it.
On the other hand, security module 202 provides Kw2 and extracts more new portion 2023 of part 2024 and EMM, this 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), use further this information of deciphering of key K w 2022, and be arranged on the information of the relevant EMM update request 2 (20111) that obtains among the EMM 2021.Those of the remainder of this structure and first embodiment (Fig. 1) are identical (in Fig. 8, some part are omitted such as display unit 106 and scramble decoder 104).
Explain the operation of this viewing control apparatus 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, EMM update request 2 (20111) is in the terminal reproduced of this advertisement or broadcasting (step 3105), 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 these information of deciphering, and before this valid expiration date, the information (step 3108) that allows to watch by the content of EMM update request 2 (20111) appointments is set in EMM 2021.
Then, as under the situation of first embodiment, the demonstration of this content is based on this information Control that is provided with among the EMM 2021.
In this way, do not watch the beginning and the end of advertisement, this viewing control apparatus does not allow view content, thereby and can guarantee that this advertisement is viewed.
(the 3rd embodiment)
The 3rd embodiment will explain when an advertisement and do not fasted forward when from first to last watching, allow the viewing control apparatus of view content.
As shown in figure 10, this device comprises that the advertisement of viewing time with expression advertisement 3011 watches the EMM update request 2 (30111) of temporal information 301111.
On the other hand, security module 302 provides the advertisement viewing time and judges part 3026, it measures the time begin to receiving till the EMM update request 2 (30111) after receiving Kw2 information 30112, and when this Measuring Time is different from advertisement and watches temporal information 301111, this content viewing information that deletion is provided with in EMM3021.Those of the remainder of this structure and second embodiment (Fig. 8) are identical.
Explain the operation of this viewing control apparatus 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 that the advertisement of the viewing time of relevant this advertisement watches temporal information 301111.
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, EMM update request 2 (30111) is in the terminal reproduced of this advertisement or broadcasting (step 4106), 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), use further this information of deciphering of key K w 3022, and before this valid expiration date, the information that can watch by the content of EMM update request 2 (30111) appointments is set in EMM 3021.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 temporal information 301111 (step 4110) is watched in this Measuring Time and this advertisement, when both when being different, deletion is arranged on the viewing information (step 4111) of this content among the EMM3021, and when both pictures mate, in EMM 3021, be arranged on the information (step 4112) that to watch before this valid expiration date under the situation of second embodiment by the content of EMM update request 2 (30111) appointments.
Then, as under the situation of first embodiment, based on the demonstration of this this content of information Control that in EMM 3021, is provided with.
In this way, this viewing control apparatus is measured the time interval between the time started of watching this advertisement and concluding time, thereby and can prevent fasting forward of this advertisement or the like.
(the 4th embodiment)
To explain the viewing control apparatus of fourth embodiment of the invention below, it not only is provided with the checkpoint on the beginning of advertisement and end, and on certain mid point of this advertisement, the checkpoint is set with certain time interval, checking allows to watch this content in the time interval of watching between the checkpoint with not fasting forward then.
As shown in figure 12, in this device, the EMM update request 2 (40111) that is included in key information Kcm 40112 that each test point sends and sends from the advertisement 4011 of reproductions/broadcaster 401 transmissions at the end of this advertisement 4011.Key information Kcm 40112 go up to be provided with and the information that obtains with certain different key K cm that sends at interval 4025 during the watching of this advertisement by being encrypted in relevant detection point.The key information Kcm 40112 that sends in the incipient stage is the information that is encrypted in the key K c1 acquisition that is provided with on first test point by use key K w4022, and the key information Kcm 40112 that next sends is the information that is encrypted in the key K c2 acquisition that is provided with on the next checkpoint by the key K c1 that is provided with on the test point before the priority of use.Be arranged on key K cm on the test point and be used another and be arranged on the key K cm that is provided with on its and then previous test point and encrypt, and send successively as key information Kcm 40112.
In addition, use key K w 4022 to encrypt EMM update request 2 (40111), use the key K cm 4025 that is arranged on the last checkpoint then its further encryption.This EMM update request 2 (40111) is described object contents and allow to watch the duration of this content during it, and temporal information 401111 is watched in the issuing time advertisement at interval that further describes the appropriate section of expression Kcm information 40112.
On the other hand, security module 402 provides Kcm and extracts part 4024, EMM more new portion 4023 and advertisement viewing time judgement part 4026.Kcm extracts Kcm information 40112 parts that part 4024 uses key K w 4022 deciphering to send at first, extraction key K cm 4025 uses from the Kcm 4025 of and then previous Kcm information 40112 extracting section and deciphers secondly and Kcm information 40112 parts of sending subsequently 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, further use key K w 4022 these information of deciphering, and in EMM4021, be provided with by this contents of EMM update request 2 (40111) appointments and during it, allow to watch the duration of this content.The advertisement viewing time judges that part 4026 measures after receiving Kcm information 40112 to receiving EMM update request 2 (40111) time between test point before, and when the asynchronism(-nization) of this measurement when temporal information 401111 is watched in advertisement, deletion is arranged on the content viewing information among the EMM 4021.Those of the remainder of this structure and second embodiment (Fig. 8) are identical.
Explain the operation of this viewing control apparatus 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 that the advertisement of the viewing time of relevant this advertisement watches temporal information 401111.
Kcm information 40112 is sequentially sent (step 5102) during the reproduction of this advertisement or broadcasting, and when receiving Kcm information 40112 (step 5103), Kcm extracts Kcm information 40112 parts and extraction key K cm 4025 (steps 5105) that part 4024 uses key K w4022 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, when during the reproduction of this advertisement or broadcasting (step 5106) sequentially send secondly and follow-up Kcm information 40112 parts of sending and extract part 4024 by Kcm and receive (step 5107) in, use is from key K cm 4025 these information of deciphering of and then previous Kcm information extraction, and key K cm 4025 is sequentially extracted (step 5109).Under the sort of situation, the advertisement viewing time is judged 4026 these times of storage of part, and Kcm information 40112 parts with sending subsequently of next are received (step 5108) on this time.When the issue of Kcm information 40112 is different from interval when the issue at interval that is provided with in the temporal information 401111 is watched in advertisement, the advertisement viewing time is judged part 4026 deletion key K cm 4025, so that prevent that subsequently key K cm 4025 or EMM update request 2 (40111) are decrypted.
Next, when EMM update request 2 (40111) is reproduced by the end in this advertisement or is broadcasted (step 5110), 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 these information of deciphering, and in EMM 4021, be arranged on this content of describing in the EMM update request 2 (40111) and before it, allow to watch the valid expiration date of this content.Notice that the advertisement viewing time judges that part 4026 stores thereon that EMM update request 2 (40111) is received should the time (step 5112).
Next, the advertisement viewing time judges that part 4026 measurements are after Kcm information 40112 is received, this time before EMM update request 2 (40111) is received, watch temporal information 401111 to compare (step 5114) time and the advertisement of this measurement, when they are different, deletion is arranged on this content viewing information (step 5115) among the EMM 4021, and when both mate, as under the situation of second embodiment, in EMM 4021, be arranged on the information (step 5116) that to watch before this valid expiration date by the content of EMM update request 2 (40111) appointments.
After this, the situation of similar this first embodiment, the demonstration of this content is based on the information Control that is arranged among the EMM 4021.
Therefore, this viewing control apparatus does not allow to obtain to be used for the key of view content, unless all a plurality of in this advertisement are not carried out and fasted forward or the like and viewed.Therefore, might prevent fasting forward of this advertisement or the like reliably, and guarantee that this advertisement is viewed.
(the 5th embodiment)
The 5th embodiment will explain a kind of viewing control apparatus, and it prevents that the time of security module from avoiding unlawfully being changed.
The present invention is provided with a valid expiration date, before it by watching this advertisement to allow to watch this content, but realize that this system need be used to control the precise time of this security module of this valid expiration date.The time of this security module normally is constituted as and makes by being corrected from outside acquisition temporal information, for example, when power supply is switched on once a day, but there is 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 or be handled.In this embodiment, this viewing control apparatus will prevent so illegal manipulation.
As shown in figure 14, this device provides time adjustment position 501, its delivery time information and security module 502, and it is 501 these temporal informations of reception from the time adjustment position, and proofread and correct the information of the current time of relevant this storage.Time adjustment position 501 storage key Kw 5012, and provide temporal information generating portion 5011, it uses the key K t 5024 that sends from security module 502 to encrypt this temporal information, and with its transmission.
On the other hand, security module 502 provides key and produces part 5022, and its storage key Kw 5021 and generation are used for encrypting randomly the key K t 5024 of temporal information; With time adjustment part 5023, its deciphering is 501 temporal informations that receive from the time adjustment position, and proofread and correct the time of this security module 502.
To explain the operation of this viewing control apparatus 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 to encrypt these keys, and sends it to time adjustment position 501.
Next, when receiving this encrypted secret key Kt 5024, the temporal information generating portion 5011 at time adjustment position 501 uses key K w 5021 to its deciphering, use the key K t 5024 that obtains by deciphering to encrypt the current time at time adjustment position 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 this security module.
In this way, this viewing control apparatus does not allow the time of this security module unlawfully to be changed, thereby and accurately control content watch valid expiration date, and guarantee that an effective advertisement is illustrated when content is viewed.
(the 6th embodiment)
The sixth embodiment of the present invention will be explained a kind of viewing control apparatus, and it can at random select a kind of method of view for free content by watching an advertisement, and will be perhaps a kind of based on the method via PPV charge view 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 viewing right and buying the information of the valid expiration date of content viewing right and encrypt the PPV information 6012 that obtains by 6022 couples of use key K w.On the other hand, this receiving system provides watches right to buy operation part 603, it carries out the operation of buying this content viewing right, and security module 602 not only provides EMM 6021, key K w 6022 and EMM more new portion 6023, and provide PPV operation part 6024, when by when watching right to buy operation part 603 carrying out in the valid expiration date of buying in this appointment operation by this content viewing right of PPV information 6012 appointments, PPV operation part 6024 is provided with the information of having bought this content viewing right in EMM 6021.When receiving EMM update request 60111, EMM more new portion 6023 uses key K w 6022 to its deciphering, and in EMM 6021, be arranged on this content of describing in the EMM update request 60111, with the valid expiration date that before it, allows to watch this content, when but the information that ought buy this content viewing right was set among the EMM 6021, EMM more new portion 6023 did not carry out this processing.The remainder of this structure is identical with in first embodiment (Fig. 1) those.
To explain the operation of this viewing control apparatus 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 this content viewing right is when watching right to buy operation part 603 carrying out, the PPV operation part 6024 of security module 602 receives the PPV information 6012 of the purchase of relevant this content viewing right, use key K w 6022 these information of deciphering, and when the current time is included in by the purchase of PPV information 6012 appointments in this this valid expiration date of watching right, the information of having bought this content viewing 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 is relevant with this content, abandon EMM update request 60111, the information of having bought this content viewing right is set among the EMM 6021.In other cases, EMM more new portion 6023 in EMM 6021, be provided with by the described content of EMM update request 60111 appointments and the relevant information that before it, allows to watch the valid expiration date of this content.
After this, as under the situation of this first embodiment, the demonstration of this content is based on the information Control that is arranged among the EMM 6021.
In this way, this viewing control apparatus right of allowing spectators to go to buy view content replaces watching an advertisement.In this case, buy this and watch the valid expiration date of right, might be used to buy this amount of money of watching right in the up-to-date PPV information and buy this and watch right to be arranged on by specifying one.
(the 7th embodiment)
The seventh embodiment of the present invention will be explained a kind of can the acquisition in advance about being the viewing control apparatus of the necessary advertising message of view content.
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, the content 7013 of the encryption of scramble and by encrypted content scrambling key and the ECM7014 that watches condition to obtain.This EPG 7012 comprises that description is about watching this content (to be included in the advertisement insertion point in the content, corresponding with the advertisement of on corresponding point, watching) list information of necessary ad content, the relevant information that before it, allows to watch the valid expiration date of this content, with when above-mentioned information is updated, the information 70121 that the advertisement of the location 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 of this reception, and with its storage, and storage comprises the advertisement 7021 of the EMM update request 70211 of reception, content 7022 and the ECM 7023 that encrypts.
To explain the operation of this viewing control apparatus 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 this content that will store.
Next, these advertisements 7011 of broadcaster 701 broadcasting, the content 7013 and the ECM 7014 that encrypt, and this storage/reproduction device 702 receives them, and the content 7022 and the ECM 7023 that store this advertisement 7021, encrypt.
This storage/reproduction device 702 plays the reproduction/broadcaster 101 in first embodiment (Fig. 1), and when content is reproduced, the advertisement 7021 of output storage, content 7022 and the ECM 7023 that encrypts.In addition, when this in the past and when no longer allowing to watch this content along with the advertisement of this storage valid expiration date, might obtain relevant information of watching the necessary up-to-date advertisement of this content from this position of the relevant information 7024 of advertisement, describing, and by this advertisement of broadcast reception.
Therefore, this viewing control apparatus can obtain relevant one in advance and be the information of the necessary advertisement of view content, and even when the information of relevant this advertisement is updated, acquisition is 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 viewing control apparatus, in the past Cun Chu content or with the content that transmits such as the medium of DVD viewed before, it obtains one for watching the necessary advertisement of this 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 stored the advertisement 8021 of storage in the past, content 8022, ECM 8023 information 8024 relevant with advertisement of encrypting.In addition, storage/reproduction device 802 provides predetermined portions 8025, the content 8022 of its predetermined storage of watching over or the content that transmits 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 sent position 803 these advertisements of acquisition information relevant with the advertisement that will upgrade from broadcaster 801 or advertisement.
To explain the operation of this viewing control apparatus below.At first, spectators are by the content of the predetermined portions 8025 predetermined storages of watching over or the content that transmits with the medium such as DVD.
Next, advertisement more new portion 8026 from the relevant information 8024 of the advertisement of the content of storage with reference to valid expiration date information, wherein watch scheduled, when the predetermined time that begins to watch be after valid expiration date in, with reference to EPG 8012 from broadcaster 801 broadcasting, be scheduled to so that store one, receive this advertisement 8011 information 80121 relevant and upgrade advertisement 8021 and the relevant information 8024 of advertisement with the advertisement that will on preset time, broadcast for watching the necessary advertisement of object content.
In addition, when by the time be scheduled to, do not broadcast up-to-date advertisement 8011 information relevant 80121 when beginning to watch the time of this content with advertisement in, advertisement more new portion 8026 is sent 803 request advertisements 8011 information 80121 relevant with advertisement in position via network from advertisement, obtains them and upgrades advertisement 8021 information 8024 relevant with advertisement.
This storage/reproduction device 802 plays the reproduction/broadcaster 101 (Fig. 1) in first embodiment.
Notice that EPG 8012 can be relevant with content broadcast schedule or advertising broadcast timetable.
In this way, in the time of when the content of the storage of watching over or with the content that transmits such as the medium of DVD, it is to watch the necessary up-to-date advertisement of this content that this viewing control apparatus can obtain before watching.
(the 9th embodiment)
The ninth embodiment of the present invention will be explained a kind of when watching the content of duplicating, and can carry out the viewing control apparatus of watching control under spectators watch the condition of an advertisement.
As shown in figure 18, in this device, storage and the storage/reproduction device 901 and 902 that reproduces content are provided with that control content duplicates duplicates control section 9015 and 9025, and when content is duplicated to storage/reproduction device 902 from storage/reproduction device 901 when, comprise the advertisement 9011 of EMM update request 90111, the information 9014 that advertisement is relevant, content 9012 of encrypting and the ECM 9013 (it is to duplicate information source) that is stored in the storage/reproduction device 901 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, content 9022 of encrypting and ECM 9023 storages.
To explain the operation of this viewing control apparatus below.At first, when content is replicated, duplicates 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 the advertisement 9011 of content corresponding, the content 9012, the ECM 9013 that the encrypt information 9014 relevant to storage/reproduction device 902 with advertisement.
Next, duplicate control section 9025 is stored these receptions respectively as content 9022, the ECM 9023 of advertisement 9021, the encryption information 9024 relevant with advertisement information.
This storage/reproduction device 902 plays the reproduction/broadcaster 101 (Fig. 1) in first embodiment.
In this way, when content is replicated, this viewing control apparatus also copies as watches the control information necessary, therefore when this content of duplicating is viewed, might carry out and watch control, as under the situation of original contents, it allows view content under the condition of watching an advertisement.
(the tenth embodiment)
The tenth embodiment of the present invention will be explained a kind of viewing control apparatus, and it is jointly controlled at the content that constitutes a group and watches control information (EMM update request, the information that advertisement is relevant).
The example that constitutes the content of a group comprises a series of programs and the content that comprises with identical style.When the content of identical group was viewed, an advertiser illustrated identical or relevant advertisement, thus and the effect of expectation improvement advertisement.
As shown in figure 19, in this device, advertisement is sent position 1000 and is provided and comprise that the information that advertisement is relevant and the group of EMM update request watch control information 1001, and the information that this advertisement is relevant and one are for to watch the necessary advertisement of the content that is used to organize that relation is arranged; Group/content corresponding informance 1002, it is the relevant information that belongs to the content of this group; With and viewing information generating portion 1003, it generates EMM update request 1004 information 1005 relevant with the necessary advertisement of each content from information.
To explain the operation of this viewing control apparatus below.At first, viewing information generating portion 1003 is discerned the content of the group that belongs to identical from group/content corresponding informance 1002, and watches control information 1001 based on this group, generates EMM update request 1004 information 1005 relevant with the necessary advertisement of each content.
The information that EMM update request 1004 is relevant with the 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 one comprises that the advertisement of EMM update request is generated with the EPG that comprises the information that advertisement is relevant here.
In this way, this viewing control apparatus is eliminated the necessity that is used to carry out to the content viewing control and management of each content, and might manage on many contents and watch control.
(the 11 embodiment)
The 11st embodiment of the present invention will be explained a kind of historical viewing control apparatus of watching of gathering advertisement.
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 provides historical information administrative section 11024, history is watched in advertisement of its storage, and it is reported to advertisement send position 1101, and advertisement is sent position 1101 and is provided advertisement and watch historical collecting part 11011, what its storage was used to decipher reception watches historical information or encrypted response in this key K w 11012, receives this advertisement and watches historical and return a response.
The information of the relevant advertisement of watching of historical information administrative section 11024 storages, utilize Kw 11022 to encrypt the viewed number of times of each advertisement, and when this advertisement in security module watch the memory block of historical information become full in or with preset time at interval, it is reported to each advertisement sends position 1101.In addition, when historical information is watched in this advertisement of report in can not be during the reporting period, supposed to implement certain illegal manipulation, via watching advertisement subsequently to come view content to be under an embargo.
To explain the operation of this viewing control apparatus below.At first, the historical information administrative section 11024 of security module 1102 is stored the history of watching of an advertisement, the information of the advertisement that accumulation is watched, the more operation of new portion 11023 of EMM that setting is forbidden for predetermined interval, before perhaps during that, finishing, when this advertisement in this security module watch the memory block of historical information become full in, use key K w 11022 to encrypt the viewed number of times of each advertisement, and send it to advertisement and send position 1101.
Next, the advertisement advertisement of sending position 1101 watches historical collecting part 11011 to use key K w11012 to decipher the viewed number of times of advertisement of this reception.When this report was proved to be rational, the EMM more operation of new portion 11023 was allowed to, and watched the response of the order of historical information to be used key K w 11012 for the advertisement of deletion report and encrypt, and sent to this security module 1102.In addition, advertisement is sent position 1101 and is gathered advertising expenditure based on this viewed times of collection of this advertisement from the advertiser.
Send the security module 1102 that position 1101 receives response and use key K w 11021, and handle according to this command execution to its deciphering from advertisement.
In this way, this viewing control apparatus can be without any the situation of watching of following the tracks of advertisement mistakenly.In addition, when reporting that not historical information is watched in this advertisement, might prevent view content.
(the 12 embodiment)
The 12nd embodiment of the present invention will be explained a kind of viewing control apparatus that history is watched in advertisement of gathering efficiently.
This device is gathered the advertisement that a quilt samples and is watched history, and determine other advertisement watch situation.
As shown in figure 21, in this device, comprise by the EMM update request 120311 of an advertisement 12031 of reproductions/broadcaster 1203 output and to represent this advertisement watches historical information whether should be reported to the announcement information 1203111 that position 1201 is sent in advertisement.The announcement information 1203111 of advertisement sends position 1201 by advertisement and is provided with.The historical report of watching of the advertisement that the historical information administrative section 12024 of security module 1202 only will be followed by the announcement information 1203111 of " will report " sends position 1201 to advertisement.The favourable reception arrangement information 12013 that the various advertisements of the method collection of using other are stored at position 1201 is sent in advertisement, with reference to this arrangement information 12013, and from the advertisement of this collection watch historical information (sampled data) judge other advertisement watch situation.
To explain the operation of this viewing control apparatus 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 viewing information of relevant this advertisement of expression should report to the announcement information 1203111 that position 1201 is sent in advertisement.
Next, when receiving EMM update request 120311, the EMM of security module 1202 more new portion 12023 uses key K w 12022 to its deciphering, and is arranged on the information that allows to watch before valid expiration date of appointment by the content of EMM update request 120311 appointments in EMM 12021.Under the sort of situation, the information of relevant this advertisement of watching together with announcement information 1203111 is stored in the historical information administrative section 12024.
Next, 12024 transmissions of historical information administrative section are sent position 1201 about the information of the viewed number of times of this advertisement of being followed by this announcement information 1203111 of " will report " to advertisement, and advertisement is sent the advertisement at position 1201 and is watched historical collecting part 12011 to receive this information, and returns a response and give security module 1202.This operation during this is identical with the operation in the 11 embodiment.
Next, watching of advertisement A based on report counted a, advertisement is watched historical collecting part 12011 to calculate watching of advertisement B and is counted b, this advertisement B describes in arrangement information, but wherein watches counting not via in the arrangement of advertisement A with watch the arrangement of counting and advertisement B and watch calculating ratio report between the counting b.
In this way, this viewing control apparatus can be gathered relevant advertisement efficiently and watch historical information.
(the 13 embodiment)
The 13rd embodiment of the present invention will be explained a kind of viewing control apparatus, and when broadcasted content was watched in real time, it allowed to begin to watch the spectators of this content to go to watch until this end of text in the centre of broadcasting.
Begin to watch the spectators of live programme not watch the advertisement of when this program begins, broadcasting naturally from its certain mid point.In this case, not watching this advertisement with spectators is that reason prevents that spectators from watching this program is wrongful.This viewing control apparatus will be removed such situation.
As shown in figure 22, in this device, broadcaster 1301 broadcasting comprise the advertisement 13011 of EMM update request 130111 and comprise the EPG 13012 of regular EMM update request 130121 that this regular EMM update request 130121 is to obtain by the actual broadcast number of times and the advertising broadcast time of using key K w 13022 to encrypt each content.Except EMM 13021, key K w 13022 and EMM more the new portion 13023, security module 1302 provides regular EMM update request administrative section 13024, it receives regular EMM update request 130121, use key K w 13022 to its deciphering, and in EMM 13021, be arranged on the information that the actual broadcast time durations of describing in the regular EMM update request 130121 allows to watch this content.
To explain the operation of this viewing control apparatus below.This broadcaster 1301 is broadcasted this EPG 13012 that comprises this regular EMM update request 130121 with the content and the ECM that encrypt, and broadcasts the advertisement 13011 that comprises EMM update request 130111 on the insertion point of an advertisement.
When this is broadcasted by when its certain mid point is watched, the regular EMM update request administrative section 13024 of security module 1302 receives EPG 13012, use key K w 13022 to decipher regular EMM update request 130121 therein, and in EMM 13021, be arranged on the information that allows to watch this content of in regular EMM update request 130121, describing during the actual airtime.Therefore, before the airtime of this content reality finishes, allow to watch this content.
Next, advertisement 13011 on certain mid point that is inserted in this program is viewed, 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 on before the valid expiration date of describing in the EMM update request 130111, allow to watch the information of this content of in EMM update request 130111, describing.At this moment, when regular EMM update request administrative section 13024 has been provided with the content viewing time longer than this valid expiration date in EMM13021 when, be not performed based on this setting of EMM update request 130111.
In this way, broadcast by when certain mid point is watched when this, this viewing control apparatus allows this content viewed until end.But when broadcasted content was stored, this content can not be viewed, unless this advertisement is viewed, and EMM is upgraded by an EMM update request.
(the 14 embodiment)
The 14th embodiment of the present invention will be explained a kind of viewing control apparatus, and its control makes beginning watch the spectators of this broadcasting jumpily not watch an advertisement of inserting on its certain mid point on later time point.
As shown in figure 23, in this device, the relevant information 140121 of advertisement that comprises the encryption that obtains by the airtime of using key K w 14022 to encrypt actual content airtime and advertisement from the EPG 14012 of broadcaster 1401 broadcasting, and security module 1402 provides the ad related information administrative section 14024 of encryption, it receives the relevant information 140121 of advertisement of encrypting, use key K w14022 that it is deciphered, and the information that allows to watch the content of describing from the current time till next advertisement is broadcasted the relevant information 140121 of the advertisement of encrypting is set in EMM 14021.Those of the remainder of this structure and the 13 embodiment (Figure 22) are identical.
To explain the operation of this viewing control apparatus below.The content of broadcaster 1401 and this encryption and ECM broadcast the EPG 14012 of the relevant information 140121 of the advertisement that comprises encryption together, and broadcasting comprises the advertisement 14011 of EMM update request 140111 on an advertisement insertion point.
When this broadcasting is watched on its certain mid point, the ad related information administrative section 14024 of the encryption of this security module 1402 receives the relevant information 140121 of advertisement of encrypting, use key K w 14022 to its deciphering, and the information that allows to watch the content of description the relevant information 140121 of the advertisement of encrypting from the current time till next advertisement is broadcasted is set in EMM 14021.Notice, be set at EMM 14021, do not upgrade being performed in case be used for the viewing time of this content.
Next, advertisement 14011 on certain mid point that is inserted in this program is viewed, 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 that allows to watch this content of describing before the valid expiration date of describing in the EMM update request 140111 in EMM update request 140111 in EMM 14021.
In this way, when this broadcasting quilt was watched therein, this viewing control apparatus makes watched this content to become possibility before next advertisement is broadcasted, and after that, unless this advertisement is viewed, was impossible otherwise watch this content.Therefore, even when certain mid point in this broadcasting begins to watch, jumpily begin in case this is watched by this advertisement not, then allow spectators continue to watch this broadcasting, making might view content.
(the 15 embodiment)
The 15th embodiment of the present invention will be explained a kind of viewing control apparatus, and it is applied to a kind of scheme in the conditions permit view content of watching advertisement to utilize the content of a secret key encryption.
Use the content of a secret key encryption to be practiced in digital copyright management (DRM) at large, and much under this scheme, encrypted in the content of selling on the internet.
If spectators watch advertisement, then the viewing control apparatus of this embodiment allows spectators to go to watch the content of using a secret key encryption, thereby and provide an effective place that is used for advertisement, and give the user chance of a view for free content to the advertiser.
As shown in figure 24, this device provides and reproduces 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 content 15012, Ks content information 15013 and view content of the encryption of a key (Ks content) encryption is used in 1501 outputs of reproduction/broadcaster, and described Ks content information 15013 is content recognition number and the relevant information that is used to decipher the key K s content of the content of using key K w 15022 encryptions.Advertisement 15011 comprises the specifying information of describing related content and the EMM update request 150111 of valid expiration date of allowing to watch before it, and uses key K w 15022 to encrypt EMM update requests 150111.
This advertisement 15011, Ks content information 15013 and the content 15012 of encrypting are used as a data slice and are recorded in the recording medium such as DVD, and reproduction/broadcaster 1501 reproduces this recording medium, export the content 15012 of advertisement 15011, Ks content information 15013 and encryption, perhaps send the information of this reproduction through network.
The EMM 15021 of security module 1502 area definition content viewing conditions, key K w 15022 with deciphering EMM update request 150111 and Ks content information 15013, and provide EMM more new portion 15024, Ks contents extraction part 15025 and scramble decoder 15023, described EMM more new portion 15024 uses key K w 15022 deciphering EMM update requests 150111, and in EMM15021, be arranged in the EMM update request 150111 information that allows to watch the content of in EMM update request 150111, describing before the valid expiration date of describing, 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 scramble decoder 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 the content 15012 of encrypting is used a key K s content-encrypt, the leakage of key causes sizable infringement.For this cause, this device is placed this scramble decoder 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 viewing control apparatus below.At first, 1501 reproductions of reproduction/broadcaster or broadcasting comprise the advertisement 15011 of EMM update request 150111, content 15012 and the Ks content information of encrypting 15013.Advertisement 15011 is displayed on the display unit 1504.
EMM 15021 in security module 1502 is set to watch any content at first.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 that allows to watch the content of describing before the valid expiration date of describing in this EMM update request 150111 in 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, scramble decoder 15023 receives the content 15012 of encrypting, watch the valid expiration date of this content and current time to compare with being arranged on before it, allowing among the EMM 15021, when allowing to watch, the content 15012 of using key K s contents decryption to encrypt, and send the content 1503 of deciphering.Display unit 1504 shows the content 1503 of deciphering.
In this way, this viewing control apparatus can be realized allowing transmitting on the network and using the content of a secret key encryption watching and viewedly under the condition of up-to-date advertisement watch control.
(the 16 embodiment)
The 16th embodiment of the present invention will be explained a kind of viewing control apparatus, and it can send and receive the decruption key of the content that is used to use a secret key encryption reliably.
Here, this embodiment supposes a kind of pattern, and one of them advertisement is sent the position and transmitted content to the user who has watched up-to-date advertisement on network, and allows this moment the user to send position acquisition content decryption key from this advertisement reliably.
As shown in figure 25, in this device, the advertisement of sending the key K s content that is used for view content sends that position 1601 storage key Kw 16011---this key K w 16011 is used for the key K s ite that the position is sent in advertisement, 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 view 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 provides 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 viewing control apparatus below.At first, the Ks ite of security module 1602 extracts part 16025 and sends position 1601 acquisition Ks ite information 16012 from advertisement, 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 is sent the Ks content information 2 (16013) that position 1601 obtains the content that will watch from advertisement, uses key K s ite that it is deciphered, and extracts key K s content.
In this way, this viewing control apparatus can receive and send the content key that uses a secret key encryption reliably on network.Using the key K s content of this extraction to carry out to watch the pattern of control is identical with in the 15 embodiment that.
(the 17 embodiment)
The 17th embodiment of the present invention will be explained a kind of viewing control apparatus, even when by suspending this content or its part being carried out rewinding and when watching the content of storage randomly, this viewing control apparatus can be carried out and watch control reposefully.
Here, the insertion point of an advertisement is considered to be provided with every 30 minutes, and an advertisement is by when content begins, and after beginning 30 minutes, 1 hour and insertion in 1 and a half hours after beginning after beginning.In addition, in an EMM update request of this advertisement, the valid expiration date of content viewing also is considered to be set to 30 minutes.
In this case, might be by watching advertisement to come view content before the time that next advertisement is inserted into, therefore, if sequentially reproduced with normal speed from this advertisement without any problem ground, might watch until this end of text in this advertisement of incipient stage and content.
But if carry out to suspend during this reproduction of content or reset slowly, next advertisement is not reproduced, and even valid expiration date of content viewing in the past after, watching of this content is suspended.
In this embodiment, this viewing control apparatus can be avoided such situation.
As shown in figure 26, in this device, except the content 17012 of encrypting, ECM 17013, information 17014 (referring to the 7th embodiment) that advertisement is relevant, comprise the advertisement 17011 of the EMM update request 170111 that is inserted on each insertion point, the storage/reproduction device provides 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 identical with in first embodiment (Fig. 1) those.
To explain the operation of this viewing control apparatus below.At first, when reproducing content, storage/reproduction device 1701 reproduces advertisement 17011 (first advertisement of describing 17011) that comprises EMM update request 170111 and the content 17012 of encrypting in the relevant information 17014 of advertisement.At that time, also reproduced with the synchronous ECM 17013 of the content of encrypting 17012.Advertisement 17011 is displayed on the display unit 1706.
Even when being allowed to and going over (when content is reproduced randomly by the time that the advertisement of this reproduction guarantees watching during it, such state appears) time, next advertisement does not have reproduced, content 17012 that advertisement reproducing control section 17015 stops to encrypt and the reproduction of ECM 17013, be reproduced in the next advertisement of describing in the relevant information 17014 of this advertisement 17011, restart the content 17012 of this encryption and the reproduction of ECM 17013 then.
That of the operation of security module 1702 and first embodiment is identical.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, so even when content is reproduced randomly, without any interrupting continuing to watch this content.
In this way, even when content is watched randomly, this viewing control apparatus can be realized the control of watching without any view content interruptedly.
(the 18 embodiment)
The 18th embodiment of the present invention will explain that a kind of execution watches the viewing control apparatus of control, make even when content was watched randomly, a plurality of advertisements of distributing to content were watched liberally.
When content is watched randomly, if a plurality of advertisements of distributing to this content are sequentially reproduced according to the timetable of describing in the relevant information of advertisement, according to the order of watching, the advertisement of high number has still less reproduced chance than the advertisement of low number.Turn back in the example shown in the 17 embodiment, the probability that the advertisement that the likelihood ratio that the advertisement of inserting in an and a half hours after beginning can be reproduced was inserted after 30 minutes can be reproduced is lower.
In order to eliminate such unfairness, this viewing control apparatus of this embodiment is designed to can be reproduced in the advertisement that and then is inserted into before the position of the content that will reproduce when the time of reproducing advertisement when content is reproduced randomly comes.
As shown in figure 27, in this device, storage/reproduction device 1801 provides by with a content resolution being the content 18012 that advertisement is inserted into the encryption of unit acquisition wherein, the ECM 18013 that decomposes according to the content 18012 of corresponding encryption, the a plurality of EMM of comprising update requests 180111 and be inserted in advertisement 18011 on the corresponding insertion point, the information 18014 that advertisement is relevant, with advertisement reproducing control section 18015, the information 18014 that described advertisement is relevant comprises that relevant advertising listing (is included in advertisement and is inserted in correspondence between the point in the content, viewed advertisement on those aspects) information, 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 content 18012 of this encryption that will reproduce, the advertisement 18011 that will reproduce, and control the reproduction of this advertisement.The remainder of this structure is identical with in first embodiment (Fig. 1) those.
To explain the operation of this viewing control apparatus below.At first, when reproducing content, storage/reproduction device 1801 reproduce comprise EMM update request 180111 (advertisement 18011 that will select by this advertisement reproducing control section 18015 as be right after before the content 18012 of this encryption that the relevant information 18014 of reference advertisement will be reproduced, will reproduce one) advertisement 18011 and the content 18012 of encrypting.At that time, also reproduced with the synchronous ECM 18013 of the content 18012 of this encryption.Advertisement 18011 is displayed on the display unit 1806.
Notice, when next advertisement does not have reproduced the time, even when the time that guarantees by the advertisement of this reproduction and watching be allowed to during in the past (when content is reproduced randomly, such situation appears) time, content 18012 that advertisement reproducing control section 18015 stops to encrypt and the reproduction of ECM 18013, with reference to the relevant information 18014 of advertisement, selection was right after before the content 18012 of this encryption that will reproduce, the advertisement 18011 that will reproduce, reproduce its advertisement 18011, restart the content 18012 of encryption and the reproduction of ECM 18013 then.
Those of the operation of security module 1802 and first embodiment are identical.
Even when content was reproduced randomly, this device reproduced advertisement 18011 under the control of advertisement reproducing control section 18015, so that do not interrupt watching of content.Since this advertisement of reproducing this moment be considered to directly to be inserted in before the content 18012 of the encryption that will reproduce, be used for aspect advertisement is inserted into the number of the relevant reproduction chance of wherein order, will not having difference.
In this way, even when being assigned to a plurality of advertisement content when being watched randomly, this viewing control apparatus allows advertisement to be watched liberally.
Notice, if canned data is stored in the recording medium such as DVD in the transcriber of each embodiment, might be by reproducing the control of watching of carrying out content under the condition that this DVD watches advertisement.For example, when this advertisement in recording medium reproduced and watch in, by the content of recording of encrypted, the key of deciphering this content, advertisement and the relevant information that before it, allows to watch the valid expiration date of this content, perhaps in the time of this past valid expiration date, the relevant information of this advertisement of the position of the up-to-date advertisement that will obtain by record expression, when content was reproduced, up-to-date advertisement was viewed.For this cause, this recording medium can play new advertising device.
As in the explanation from the above description clearly, above-mentioned viewing control apparatus can be carried out the control of watching of content, makes that when advertisement was viewed, content can be viewed.For this cause, spectators can the view for free content, and spectators watch this advertisement for certain.In addition, because a valid expiration date is set for by watching an advertisement to allow view content,, make that the viewed time point of content was included in this valid expiration date thereon so must watch up-to-date advertisement.Therefore, watching of this advertisement as one man implemented with advertiser's expectation.In addition, this contents producer can obtain the advertising expenditure at the content that produces in the past.
In addition, might go to carry out and watch control,,, and guarantee that this advertisement is viewed unless spectators from first to last watch this advertisement so that do not allow spectators to go view content.
As mentioned above, an aspect of this viewing control apparatus of the present invention is a kind of viewing control apparatus, it is constituted as feasible, the conditional information of watching of watching valid expiration date of this content is watched in memory contents identifying information and expression in processing module, when one be used to upgrade this watch conditional information watch the relevant advertisement of condition lastest imformation reproduced the time, via one more new portion watch the condition lastest imformation to update stored in this processing module this based on this watching conditional information and watch conditional information to control this reproduction of content based on this.
This structure allows spectators to go this content of view for free, thereby guarantees that spectators watch this advertisement.In addition, because a valid expiration date is set for watching of content, watching by watching advertisement to allow of this content so up-to-date advertisement need be viewed, makes the viewing time point of this content be included in this valid expiration date.As a result, watch this advertisement as this advertiser's expectation.In addition, this contents producer can bring in advertising expenditure from the content that produces in the past.
In addition, this processing module is made of security module.
This structure allows this condition of watching to be stored reliably or upgrade.
In addition, the valid expiration date of this content is with absolute time or relative time appointment.
This structure allows the valid expiration date of this content with absolute time or relative time appointment.
In addition, use one to see that at view of advertisement beginning time and advertisement watch the random time point between the concluding time, perhaps this advertisement thereon is used as the time that the reference time obtains, based on the valid expiration date of this content of representing with relative time, produce the valid expiration date of this content of representing with an absolute time.
This structure allows the detailed description with relative time to be converted into detailed description with absolute time.
In addition, this watches the information that the condition lastest imformation is configured to comprise that the advertisement of valid expiration date of the advertisement that expression is relevant is relevant and the source of obtained up-to-date advertisement on the time in this past valid expiration date.
This structure allows the obtained and transmission of up-to-date advertising message.
In addition, this content or this advertisement are obtained via broadcasting, communication or recording medium.
This structure allows this content or this advertisement to be obtained via broadcasting, communication or recording medium.
In addition, this content or this advertisement are configured to store in advance.
This structure allows this content or this advertisement to be stored in advance and reproduce.
In addition, this content, this watches condition lastest imformation or this to watch conditional information encrypted.
This structure allows this content, this watches condition lastest imformation or this to watch conditional information to be stored reliably.
In addition, its be configured to when the reproduction of this advertisement at first, use first key of public-key encryption to be exported to processing module, and when the reproduction of this advertisement is finished, use the condition lastest imformation of watching of first secret key encryption to be exported to this processing module, and this processing module uses this Public key to decipher this first key, and this watches the condition lastest imformation to watch conditional information to upgrade this to use this first secret key decryption.
This structure provides watches control, makes that then content can not be viewed, and guarantee that this advertisement is viewed if from first to last do not watch an advertisement.
In addition, it is configured to when watching at this before condition lastest imformation is received, and the asynchronism(-nization) of passage is the original reproduction demonstration time of this advertisement after this first key is received by this processing module, and this watches conditional information not to be updated.
This structure allows in the time interval between this advertisement viewed start and end time measured, thereby and can prevent fasting forward of this advertisement or the like.
In addition, its be configured to when the reproduction of this advertisement at first, use first key of this public-key encryption to be exported to this processing module, and from that time, when scheduled volume has been advanced in the reproduction of this advertisement, a new key is used the previous secret key encryption that directly sends, and output it to this processing module, and when the reproduction of this advertisement is finished, this of the previous secret key encryption that directly sends of use watches the condition lastest imformation to be exported to this processing module, the key that this processing module deciphering and reproduction order ground send, and this watches the condition lastest imformation to watch conditional information to upgrade this to use the previous secret key decryption that sends.
Because this structure,, otherwise can not obtain to be used for the key of view content unless the whole of a plurality of points in this advertisement are watched on the ground that do not fast forward or the like.This guarantees to prevent fasting forward of this advertisement or the like, and guarantees that this advertisement is viewed.
In addition, before being received at next key, the time of passage after each key is received by this processing module, with watch the condition lastest imformation to be received at this before, the asynchronism(-nization) of passage is the required time of scheduled volume that the reproduction of advertisement is advanced after last key is received, and this watches conditional information not to be updated.
This structure does not allow to obtain to be used for the key of view content, and ground is watched unless all a plurality of in this advertisement are not fasted forward or the like.This guarantees to prevent fasting forward of this advertisement or the like, and guarantees that this advertisement is viewed.
In addition, when this content was replicated, one allowed the viewed advertisement of this content to be duplicated together.
When this content of duplicating was viewed, this structure was similarly watched control watching providing under the condition of this advertisement.
In addition, structure described above provides the viewing control apparatus according to claim 1, and wherein this watches conditional information or this viewing information lastest imformation relevant with one group of content.
The control of watching by the content of this content execution of dividing into groups is managed in this structure permission.
In addition, structure described above provides the viewing control apparatus according to claim 1, and wherein when this content was reproduced, one allowed to watch the advertisement of this content reproduced before this content.
According to this configuration, might before this content, reproduce an advertisement that allows to watch this content.
The application is that its whole content is combined in herein as the reference data especially 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
According to this viewing control apparatus of the present invention, watch control program and safety means can carry out content Watch control, in the time of viewed with advertisement of box lunch, content can be viewed, guarantees thereby produce The effect that spectators watch this advertisement for this content of view for free, and be suitable for being used for control broadcasting The viewing control apparatus of watching of the content of content or storage, watch in control program and the safety means and making With.

Claims (17)

1. viewing control apparatus, the conditional information of watching of watching valid expiration date of its memory contents identifying information and this content of expression in processing module,
When one be used to upgrade this watch conditional information watch the relevant advertisement of condition lastest imformation reproduced the time, this that watch that the condition lastest imformation upgrades that partial update stores via one in described processing module based on this watched conditional information, and watches conditional information to control this reproduction of content based on this.
2. according to the viewing control apparatus of claim 1, wherein said processing module is a security module.
3. according to the viewing control apparatus of claim 1, wherein the valid expiration date of this content is with absolute time or relative time appointment.
4. according to the viewing control apparatus of claim 3, wherein the valid expiration date of this content of representing with absolute time is to use one to see that at view of advertisement beginning time and advertisement watch the random time point between the concluding time, the time that perhaps obtains this advertisement is as fiducial time, produces based on valid expiration date of this content of representing with relative time.
5. according to the viewing control apparatus of claim 1, wherein this watches the condition lastest imformation to comprise the valid expiration date of advertisement and the source of the up-to-date advertisement that obtains on the time in this past valid expiration date.
6. according to the viewing control apparatus of claim 1, wherein this content or this advertisement obtain via broadcast communication or recording medium.
7. according to the viewing control apparatus of claim 1, wherein this content or this advertisement are stored in advance.
8. according to the viewing control apparatus of claim 1, wherein this content, watch the condition lastest imformation or watch conditional information encrypted.
9. according to the viewing control apparatus of claim 1, wherein when the reproduction of this advertisement at first, use first key of public-key encryption to be exported to processing module, and when the reproduction of this advertisement is finished, use the condition lastest imformation of watching of first secret key encryption to be exported to this processing module, and this processing module uses Public key to decipher this first key, and this watches the condition lastest imformation to watch conditional information to upgrade this to use this first secret key decryption.
10. according to the viewing control apparatus of claim 9, wherein when watching at this before condition lastest imformation is received, when the original reproduction that is different from this advertisement time lapse after this first key is received by this processing module showed the time, this watched conditional information not upgrade.
11. viewing control apparatus according to claim 9, wherein when the reproduction of this advertisement at first, use this first key of this public-key encryption to be exported to this processing module, and from that time, when a scheduled volume has been advanced in the reproduction of this advertisement, a new key is used the previous secret key encryption that directly sends and exports to this processing module, and when the reproduction of this advertisement is finished, this of the previous secret key encryption that directly sends of use watches the condition lastest imformation to be exported to this processing module, the key that this processing module deciphering and reproduction order ground send, and this watches the condition lastest imformation to use the previous secret key decryption that sends, and watches conditional information to upgrade this.
12. viewing control apparatus according to claim 11, wherein when before next key is received, at each key is by the time lapse after this processing module reception, with watch at this before condition lastest imformation is received, be different from the time lapse after last key is received the reproduction of advertisement was advanced in required time of scheduled volume, this watches conditional information not upgrade.
13. according to the viewing control apparatus of claim 1, wherein when this content was replicated, one allowed the viewed advertisement of this content to be duplicated together.
14. according to the viewing control apparatus of claim 1, wherein this watches conditional information or this viewing information lastest imformation relevant with one group of content.
15. according to the viewing control apparatus of claim 1, wherein when this content was reproduced, one allowed to watch the advertisement of this content to be reproduced before this content.
16. a viewing control program, its make computer run so as the memory contents identifying information and the expression this content the conditional information of watching of watching valid expiration date,
When one be used to upgrade this watch conditional information watch the relevant advertisement of condition lastest imformation reproduced the time, upgrade this that watch the storage of condition lastest imformation based on this watch conditional information and
Watch conditional information to control this reproduction of content based on this.
17. security module, the content and the content viewing conditional information of the encryption that this security module storage will be watched, this content viewing conditional information is specified the valid expiration date of the content that allows to watch this encryption, and this security module is based on this valid expiration date of being watched the conditional information appointment by this, deciphering and reproduce the content of this encryption, wherein when an advertisement relevant with watching the condition lastest imformation is reproduced, watch the condition lastest imformation to upgrade this based on this and watch conditional information, and allow to watch the content of watching this encryption of conditional information appointment by this, and the described condition lastest imformation of watching is to be used to upgrade valid expiration date of content of being watched this encryption of conditional information appointment by this.
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)

Application Number Priority Date Filing Date Title
JP174785/2003 2003-06-19
JP2003174785 2003-06-19
JP177584/2004 2004-06-15
JP177584/2003 2004-06-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103959318A (en) * 2011-07-01 2014-07-30 英特尔公司 System, method and computer program product for linking content availability to media consumption

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103959318A (en) * 2011-07-01 2014-07-30 英特尔公司 System, method and computer program product for linking content availability to media consumption

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