JP2003022318A - System and method for receiving broadcasting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently utilize funds paid by a sponsor to increase merchandise sales. SOLUTION: A store terminal 2 writes a system key Ks, as viewing control information, for allowing a viewer to view broadcasting of particular contents sponsored by a company 8 to an IC card 1 of the viewer connected to the store terminal 2, when prescribed purchase conditions are established, in such a manner that the viewer purchases merchandise A. A viewer terminal 5 allows the viewer to view the particular contents broadcasting allowed to be viewed with the system key Ks read from the IC card 1 of the viewer connected to the viewer terminal 5 among various contents obtained by receiving broadcasting from a broadcasting provider.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcast receiving system and method, and more particularly to a broadcast receiving system and method for broadcasting contents for a fee or for a specific audience.

[0002]

2. Description of the Related Art Conventional pay broadcasting is a broadcast in which an encrypted content is broadcast from a broadcaster and can be decrypted and viewed only by a user (viewer) having a specific encryption key. It is a receiving system. At this time, the user (viewer) and the broadcaster make a contract in advance and pay the viewing fee, so that the broadcaster sends the encryption key to the receiving terminal or IC card of the contracted user so that the user can watch the program. . Therefore, it is a pay broadcast in which the user pays the viewing fee. On the other hand, in conventional free broadcasting, a sponsor pays an advertising fee to a broadcaster and broadcasts an advertisement (commercial) program in the program, so that the viewer can watch the program for free.

[0003]

However, in such a conventional broadcast receiving system, the content can be viewed without watching the advertisement (commercial) program regardless of whether the program is paid or free. The number of viewers of the content and the number of viewers of the advertisement (commercial) are different. Even if the viewer views the advertisement, it does not mean that the viewer can definitely purchase the advertised product. Therefore, there has been a problem that the amount of funds (for example, advertisement fees) paid by a company as a sponsor cannot be efficiently linked to sales of products. The present invention is intended to solve such a problem, and an object of the present invention is to provide a broadcast receiving system and method capable of efficiently connecting the amount of funds paid as a sponsor to sales of products.

[0004]

In order to achieve such an object, a broadcast receiving system according to the present invention provides a broadcaster who broadcasts various contents and a viewer who broadcasts the contents broadcast by this broadcaster. Viewer terminal for viewing, a store terminal installed in a store that sells products of a company that provides funds for broadcasting specific content to a broadcaster, and the viewer is portable. A recording medium that stores a variety of information connected to a viewer terminal and a store terminal is provided, and when a predetermined product purchase condition is satisfied by the purchase of a product by the viewer by the store terminal control means of the store terminal, the company The viewing control information for permitting the viewing of the broadcast of the funded specific content is written in the recording medium of the viewer connected to the store terminal, and the reception control means of the viewer terminal broadcasts the content. Among various contents obtained by receiving the broadcast from the viewer, the broadcast of the specific content permitted to be viewed by the viewing control information read from the recording medium of the viewer connected to the viewer terminal is permitted to be viewed. It is the one.

As an example applied when a viewer does not go to a store such as when purchasing a product from home, a network for connecting the store terminal and the viewer terminal is further provided.
The store terminal control means is connected to the viewer terminal with viewing control information that permits viewing of the broadcast of the specific content funded by the company when the predetermined product purchase condition is satisfied by the purchase of the product by the viewer. You may make it write in the recording medium of the said viewer via a network.

As an example of using the key information as the viewing control information, the broadcaster encrypts and broadcasts various contents, and the store terminal control means provides the key information for decrypting the specific content as the viewing control information. The viewing may be permitted by writing in a recording medium and decrypting the decodable specific content based on the key information read from the recording medium as the viewing control information by the reception control means.

As another example of using the key information as the viewing control information, a broadcaster broadcasts various contents encrypted, and the store terminal control means shows, as the viewing control information, availability information indicating whether or not the particular content is viewable. Is written in a recording medium, and the reception control means decrypts the specific content, which is permitted to be viewed based on the permission information read from the recording medium as the viewing control information, by using the key information stored in advance in the recording medium. Therefore, the viewing may be permitted.

[0008] Another broadcast receiving system according to the present invention is a broadcaster that broadcasts various contents, a viewer terminal for a viewer to view the contents broadcast by this broadcaster, and a broadcaster. Store terminal installed in a store that sells products of companies that provide people with funds for broadcasting specific content, and a variety of information that can be carried by the viewer and is connected to the viewer terminal and the store terminal A recording medium for storing the information and a network for connecting the store terminal and the broadcaster are provided, and when the predetermined product purchase condition is satisfied by the viewer's purchase of the product by the store terminal control means of the store terminal, the company The viewing control information for permitting viewing of the broadcast of the specific content funded by and the ID pre-recorded on the recording medium of the viewer connected to the store terminal are To the broadcaster via the network, and based on the viewing control information and the ID notified from the store terminal at the broadcaster, the specific content corresponding to the viewing control information is added with an ID for broadcasting. Among the various contents obtained by receiving the broadcast from the broadcaster by the reception control means of the viewer terminal, an ID matching the ID read from the recording medium of the viewer connected to the viewer terminal is added. It allows the viewing of the broadcast of the content that is being held.

Regarding the product purchase condition, the store terminal control means stores the product purchase information indicating the history of the purchase contents according to the purchase of the product by the viewer, and the recording medium of the viewer connected to the store terminal. Alternatively, the establishment of the product purchase condition may be determined based on the product purchase information read from the recording medium and the content of new purchase of the product. Alternatively, the store terminal control means updates and records the product purchase information indicating the history of the purchase contents according to the purchase of the product by the viewer to the recording medium of the viewer connected to the viewer terminal via the network. Alternatively, the establishment of the product purchase condition may be determined based on the product purchase information read from the recording medium via the network and the content of new purchase of the product.

Further, another broadcast receiving system according to the present invention is a broadcaster that broadcasts various contents, a viewer terminal for a viewer to watch the contents broadcast by this broadcaster, and a broadcaster. Store terminal installed in a store that sells products of companies that provide people with funds for broadcasting specific content, and a variety of information that can be carried by the viewer and is connected to the viewer terminal and the store terminal A recording medium that stores the information, a network that connects the viewer terminal and the broadcaster are provided, and the shop terminal control means of the shop terminal displays the purchase history of the product according to the purchase of the product by the viewer. The information is updated and recorded on the recording medium of the viewer connected to the store terminal, and the reception control means of the viewer terminal indicates the content viewed by the viewer for the broadcast from the broadcaster. The viewing record information is written in the recording medium connected to the viewer terminal, and the viewing record information, the product purchase information, and the ID recorded in advance in the recording medium are read out from the recording medium as needed, and are read via the network. The broadcaster, and the broadcaster receives the viewing record information, the product purchase information and the ID notified from the viewer terminal, and the ID is based on the viewer record information.
It is also possible to calculate the charge amount to the viewer corresponding to, and to reduce the charge amount when a predetermined product purchase condition is satisfied by the product purchase information.

Regarding the product purchase information, the store terminal control means stores the product purchase information showing the history of the purchase contents in accordance with the purchase of the product by the viewer to the recording medium of the viewer connected to the store terminal. It may be updated and recorded. Alternatively, the store terminal and the viewer terminal are connected via a network, and the store terminal control means connects the product purchase information indicating the history of the purchase contents to the viewer terminal according to the purchase of the product by the viewer. You may make it update-record on the recording medium of the said viewer via a network.

Further, the broadcast receiving method according to the present invention provides a broadcasting company that broadcasts various contents, a viewer terminal for a viewer to watch the contents broadcast by this broadcasting company, and a broadcasting company. On the other hand, a store terminal installed in a store that sells products of companies that provide funds for broadcasting specific content, and a variety of information that can be carried by the viewer and connected to the viewer terminal and the store terminal to store various information A broadcast receiving method for permitting only specific viewers to view content using a broadcast receiving system including a recording medium, wherein predetermined product purchase conditions are satisfied by a viewer purchasing a product at a store terminal. In this case, the viewing control information that permits viewing of the broadcast of the specific content funded by the company is written in the recording medium of the viewer connected to the store terminal, Of the various contents obtained by receiving the broadcast from the broadcaster, the viewing of the broadcast of the specific content permitted to be viewed by the viewing control information read from the recording medium of the viewer connected to the viewer terminal Is allowed.

As an example applied when a viewer does not go to a store such as when purchasing a product from home, a network for connecting a store terminal and a viewer terminal is further provided,
At the store terminal, when the predetermined product purchase condition is satisfied by the purchase of the product by the viewer, the viewing control information that allows viewing of the broadcast of the specific content funded by the company is connected to the viewer terminal. You may make it write in a person's recording medium via a network.

As an example of using the key information as the viewing control information, a broadcaster encrypts and broadcasts various contents, and the store terminal stores the key information for decoding the specific content as the viewing control information. Alternatively, the viewing may be permitted by decrypting the decodable specific content based on the key information read out from the recording medium as the viewing control information in the viewer terminal.

As another example of using the key information as the viewing control information, various contents are encrypted and broadcast by the broadcaster, and the store terminal records the availability information indicating the viewing availability of the specific content as the viewing control information. Write to media,
The viewer terminal permits the viewing by decrypting the specific content, which is permitted to be viewed based on the permission information read as the viewing control information from the recording medium, by using the key information stored in advance in the recording medium. You may do it.

Further, another broadcast receiving method according to the present invention is a broadcaster who broadcasts various contents, a viewer terminal for a viewer to watch the contents broadcast by this broadcaster, and a broadcaster. Store terminal installed in a store that sells products of companies that provide people with funds for broadcasting specific content, and a variety of information that can be carried by the viewer and is connected to the viewer terminal and the store terminal A recording medium for storing, a broadcast receiving method for permitting only specific viewers to view content by using a broadcast receiving system consisting of a network connecting a store terminal and a broadcaster, in the store terminal, Viewing control information for permitting viewing of a broadcast of specific content funded by a company when a predetermined product purchase condition is satisfied by the viewer's purchase of the product, and the shop terminal concerned. The ID recorded in advance in the recording medium of the connected viewer is notified to the broadcaster via the network, and the broadcaster, based on the viewing control information and the ID notified from the store terminal, ID is added to the specific content corresponding to the viewing control information and broadcast,
Among the various contents obtained by receiving the broadcast from the broadcaster at the viewer terminal, the content to which the ID matching the ID read from the recording medium of the viewer connected to the viewer terminal is added It is designed to allow viewing of the broadcast of.

Further, the broadcast receiving method according to the present invention provides a broadcasting company that broadcasts various contents, a viewer terminal for a viewer to view the contents broadcast by this broadcasting company, and a broadcasting company. On the other hand, a store terminal installed in a store that sells products of companies that provide funds for broadcasting specific content, and a variety of information that can be carried by the viewer and connected to the viewer terminal and the store terminal to store various information A broadcast receiving method for permitting only specific viewers to view content by using a broadcast receiving system including a recording medium and a network that connects a viewer terminal and a broadcaster. Depending on the purchase of the product by the person, the product purchase information indicating the history of the purchase content is updated and recorded on the recording medium of the viewer connected to the store terminal, and the information is broadcast on the viewer terminal. The viewing record information indicating the viewing content by the viewer for the broadcast from the viewer is written in the recording medium connected to the viewer terminal, and the viewing record information, the product purchase information, and the relevant recording are recorded from the recording medium as necessary. The ID recorded in the medium is read out, the broadcaster is notified via the network, and the broadcaster receives the viewing record information, the product purchase information and the ID notified from the viewer terminal, and records the viewer. ID based on information
The amount of charge to the viewer corresponding to is calculated, and the amount of charge is reduced when a predetermined product purchase condition is satisfied by the product purchase information.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a broadcast receiving system according to an embodiment of the present invention.
Here, satellite broadcasting is shown as an example. This broadcast receiving system includes an IC card (recording medium) 1 and a store 2
A, a store terminal 2, a broadcasting company (equipment) 3, a satellite 4A, a digital broadcasting line 4, a viewer terminal 5, a network 6 and a company 7.

The viewer terminal 5 is a terminal that receives and reproduces the content data broadcast from the broadcaster 3 via the digital broadcasting line 4 and the satellite 4A. The broadcaster 3 scrambles (encrypts) the content data D to be transmitted in advance and transmits it as encrypted content data Ds. At this time, the data key KD necessary for descrambling (decoding) the content data Ds is encrypted and transmitted from the broadcaster 3 together with the content data Ds as the data key KDs.

The company 7 is a company / organization that manufactures or sells the product A, and has a program sponsor contract with the broadcasting company 3. The store 2A is a store that sells the product A of the company 7, and the store terminal 2 is installed therein. The store terminal 2 is a terminal device that is connected to the IC card 1 possessed by the viewer, writes various information in a memory in the IC card 1 as necessary, and reads various information written in the memory. . The store terminal 2, the broadcaster 3, and the viewer terminal 5 are connected to each other via a network 6 such as the Internet, a public telephone network, or a wireless communication network, and exchange various kinds of information as necessary. .

The IC card 1 is a small card (storage medium) that can be carried by the viewer, and is connected to the viewer terminal 5 and the store terminal 2. A memory is provided inside the IC card 1. This IC card 1 has viewers 2
The product purchase information (amount, company, quantity, amount, purchase date, place of purchase, etc.) of the product A purchased by A, and the content data Ds broadcast by the broadcaster 3 are descrambled and viewed by the viewer terminal 5. System key K required for
s, viewer information (card ID, name, age, address, etc.),
In addition, various kinds of information of purchase store information (place, series, store name, etc.) are stored.

In the following, a case where an IC card is used as a recording medium for recording the above various information will be described as an example, but any portable recording medium capable of recording the above various information may be used, such as a memory IC. In addition to the IC card and the memory card, a storage means other than the memory IC such as a magnetic recording card may be used. Further, this recording medium does not have to be carried and handled alone, and for example, a storage means built in a portable wireless terminal or other portable small device can be used.

FIG. 2 shows a block diagram of the store terminal 2 and the viewer terminal 5. The store terminal 2 is connected to the IC card 1 and is connected to an IC card interface (IC card I / F) 21 for reading / writing various information from / into the memory inside the IC card 1, and is connected to the network 6 to perform data communication. Network connection unit 23 for performing, and store terminal 2
And a store terminal control unit 22 for controlling each unit of the.

The viewer terminal 5 is connected to the IC card 1 and an IC card interface (IC card I / I) for reading / writing various information from / into the memory of the IC card.
F) 51, the network connection section 53 for performing data communication by connecting to the network 6, and the encrypted content data Ds and the encrypted data key KDs from the digital broadcasting line 4 and receiving and outputting them. The reception control unit 5 that obtains and controls each unit of the viewer terminal 5
2 and are provided. In the reception control unit 52, the received data key KDs and the IC card I / F 51
A data key KD is generated from the system key Ks read from the memory of the card 1. Then, the received content data Ds is descrambled (decoded) using the data key KD to obtain a reception output.

In the following, in consideration of security, a system key Ks obtained by scrambling the system key K for descrambling the data key KDs will be described as an example of the system key. However, the system key K itself is used. You may use. Also system key Ks
May be provided individually for each content. Alternatively, it may be provided in common for a plurality of contents, for example, by providing a system key Ks for each sponsor,
You may make it possible to view each content of the same sponsor with a common system key Ks.

The broadcasting company 3 scrambles (encrypts) the content data (program) sponsored by the company 7 that manufactures / sells the product A, and then distributes it via the digital broadcasting line 4. The viewer receives at the viewer terminal 5 the encrypted data distributed through the digital broadcasting line 4. In the case of broadcasting for a specific viewer, the viewer terminal 5 sends I when descrambles the scrambled data.
Viewing control information written in the store terminal 2 on the C card 1,
For example, the descrambleability of the scrambled data is determined based on the information (amount, company, quantity, amount, date and time of purchase, place of purchase, etc.) of the purchased product A. As the judgment condition, a viewer who purchases a predetermined number or more than a predetermined amount of the product A can descramble.

In the case of pay broadcasting such as pay-as-you-go billing or flat-rate charging, the record of viewing is recorded in the memory of the IC card and notified to the broadcaster 3 through the network 6 such as a telephone line or the Internet. . In response to this, the broadcasting company 3 is charged for the contract fee and the viewing fee of the pay broadcasting, but the information (amount, company, quantity, etc.) of the purchased product A written in the IC card 1 at the store terminal 2 is charged. Depending on the amount, date and time of purchase, place of purchase, etc.), the contract fee for pay broadcasting and the contract fee for viewing fee may be reduced. For example, viewers who have purchased n or more products A may receive a benefit of m percent of the regular fee. Give.

Next, with reference to FIG. 3, a first embodiment of the present invention will be described in detail. FIG. 3 is a sequence diagram showing the operation of the broadcast receiving system according to the first embodiment. When the viewer purchases the product A at the store 2A, the viewer purchases the IC card 1 owned by the viewer at the store 2A.
It is connected to the IC card I / F 21 of the store terminal 2 located at (step 100). As a result, the shop terminal control unit 22 of the shop terminal 2 reads past product purchase information in the memory of the IC card 1 via the IC card I / F 21 (step 101).

Then, the store terminal control unit 22 responds to the purchase contents input in response to the purchase of the product (step 10
2) Update the product purchase information by adding the purchase information of the product A purchased this time to the product purchase information read in step 101, and update the updated product purchase information and the purchase store information indicating the purchase store. Data is again written in the memory of the IC card 1 (step 103). Further, when the predetermined product purchase condition is satisfied based on the updated product purchase information (step 104), the store terminal 2 scrambles the product A distributed by the broadcaster 3 as the viewing control information. System key K for viewing content sponsored by the company that manufactures / sells
s is written in the IC card 1 (step 105).

After this, when the viewer views the broadcast, the IC card I / F5 of the viewer terminal 5 is loaded with the IC card 1 in which the system key Ks is written according to the purchase of the product A by the viewer.
1 (step 110). As a result, the reception controller 52 of the viewer terminal 5 reads the system key Ks and the like from the IC card 1 connected to the IC card I / F 51 (step 111). Here, when the system key Ks is written in the IC card 1, it is determined that the viewing is possible (step 112), and the reception of the content is started. If the system key Ks does not exist and it is determined that the content cannot be viewed, it is displayed that the desired content cannot be viewed.

On the other hand, when distributing various contents using the digital broadcasting line 4, the broadcasting company 3 distributes the contents data Ds which is scrambled (encrypted) to the contents. Also, the broadcaster 3 distributes the scrambled content data Ds with a data key necessary for descrambling the content data Ds at the viewer terminal 5. At this time,
The data key is also scrambled and distributed as the data key KDs through the digital broadcasting line 4.

The scrambled content data Ds and the data key KDs are distributed through the digital broadcasting line 4 and the reception control section 5 of the viewer terminal 5 of the viewer.
2 is received (step 113). Reception control unit 52
Is the system key Ks read from the IC card 1,
A data key KD necessary to descramble the scramble of the scrambled content data Ds is generated from the scrambled data key KDs received via the digital broadcasting line 4 (step 114).

Then, the scrambled content data Ds received by the reception control unit 52 is descrambled by using the generated data key KD to generate the content data D (step 115). The generated content data D is decoded by the reception control unit 52 and output as a reception output, whereby the viewer can view the desired content (step 116).

In this way, the system key Ks is issued from the store terminal 2 according to the purchase condition of the product A by the viewer,
The system key Ks is used to descramble the content received by the viewer terminal so that the content can be viewed. Therefore, if the viewer purchases the product A, the manufacturer / seller of the product A sponsors the content. You will be able to watch. Therefore, the viewer's request for viewing the content leads to the willingness to purchase the product A, and thus the funds provided by the company as a sponsor for the broadcast of the content can be efficiently linked to the sales of the product.

As a result, for example, a company can stop the creation / broadcasting of an advertisement and the cost thereof can be greatly reduced, and the cancellation of this advertisement interrupts the advertisement content by interrupting the content desired by the viewer. . Therefore, it is possible for the viewer to continuously view the content, which can give a good impression to the viewer, and as a result, it is possible to increase the demand for viewing and further increase the willingness to purchase the product. . Further, since the product purchase information indicating the product purchase history is recorded on the IC card and is updated every time a new purchase is made to determine whether or not the product purchase condition is satisfied, the product purchase information may be purchased multiple times. You can also set the purchase conditions.

Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 4 is a sequence diagram showing the operation of the broadcast receiving system according to the second embodiment. In the first embodiment, the case where the system key Ks is used as the viewing control information indicating whether the content can be received or not has been described as an example, but in the present embodiment, the descramble availability information I is used instead of the system key Ks. Is used as viewing control information to determine whether content can be received.

The descramble permission / inhibition information I is written to the IC card 1 by the store terminal 2 (step 125) when a predetermined product purchase condition is satisfied based on the updated product purchase information (step 104). Then I
When the C card 1 is connected to the viewer terminal 5 (step 110), the system key Ks and the descramble availability information I written in the IC card 1 in advance are read by the reception controller 52 (step 131). . Then, when it is determined from the descrambling permission / inhibition information I that the content is viewable (step 112), the above step 113 is performed.
The reception of the contents is started in the same manner as in steps 115 to 115.

Since the descramble availability information I different from the system key Ks is used to determine whether the content can be received, it is possible to separately handle the system key Ks and the viewing availability information. Becomes
Therefore, for example, the system key Ks is the IC card 1
The system key Ks need not be held in the store terminal 2 in advance. Further, it is also possible to use a system key Ks that is common to a plurality of contents and to allow only specific contents to be received by the descrambling permission / inhibition information I, so that the broadcast receiving system can be flexibly constructed. Regarding the system key Ks, I
It may be stored in the C card 1 in advance, or may be written in the IC card 1 together with the descramble availability information I.

Next, a third embodiment according to the present invention will be described with reference to FIG. FIG. 5 is a sequence diagram showing the operation of the broadcast receiving system according to the third embodiment. In the second embodiment, when the descramble availability information I indicating whether the content can be received is written in the IC card 1 at the store terminal 2 and then the descramble availability information I is read out from the IC card 1 at the viewer terminal 5. Has been described as an example. In the present embodiment, not the IC card 1 but the broadcaster 3 is used to notify the viewer terminal 5 from the store terminal 2 of whether or not each IC card (or viewer) is descrambled. is there.

In this case, the store terminal controller 2 of the store terminal 2
In step 2, the product purchase information is sent to the IC card 1 in step 101
When reading from, the ID unique to the IC card (or the viewer) stored in advance in the IC card 1 is read. Then, according to the establishment of the product purchase condition (step 1
04), from the network connection unit 23 to the broadcaster 3 via the network 6, the I descrambled
The ID corresponding to the C card 1 and the descrambling permission / inhibition information I indicating the content whose descrambling is permitted as the viewing control information are notified (step 1
45).

After that, when the viewer views the broadcast, the viewer inserts the IC card 1 in which the system key Ks is written according to the purchase of the product A into the IC card I / F 5 of the viewer terminal 5.
1 (step 150). As a result, the reception control unit 52 of the viewer terminal 5 reads the system key Ks and the ID from the IC card 1 connected to the IC card I / F 51 (step 151). In the broadcasting company 3, the individual IDs notified from each store terminal 2 in this way
(ID list) is scrambled content data D corresponding to the descramble availability information I
s and the data key KDs (step 152).

In the reception control section 52 of the viewer terminal 5, the IC
Whether or not the descramble is possible is determined depending on whether the ID read from the card 1 matches any of the IDs broadcast by the broadcaster 3 (step 153). Then, when the ID read from the IC card 1 matches any of the IDs broadcast by the broadcaster 3, reception of the content is started in the same manner as steps 113 to 115.

In this way, the IC card (or viewer)
Information indicating whether descramble is possible for each
Since the viewer terminal 5 is notified from the store terminal 2 through the broadcaster 3, it is possible to notify the viewer terminal 5 of the descramble possibility without using the IC card 1, and the IC card 1 can be tampered with. High security is also obtained for.

In the present embodiment, the case in which an ID permitting descrambling is broadcast from the broadcasting company 3 has been described as an example, but conversely, an ID (I
The D list) may be distributed from the broadcaster 3 to the viewer terminal 5. In this case, the broadcaster 3 may select an ID that cannot be descrambled based on the ID and the descramble availability information I notified from the store terminal 2 in the same manner as described above. , I
If descrambling is permitted only when the ID read from the C card 1 does not match the ID that cannot be descrambled received from the broadcaster 3, the same operation as described above can be obtained.

In the present embodiment, if there is only one content to be descrambled or if a plurality of contents have the same descramble permission condition, the descramble permission information I is used as the target content. No need to specify. Therefore, in such a case, it is not necessary to notify the descramble permission information I from the store terminal 2 to the broadcaster 3, and it is sufficient to notify only the ID that permits descrambling.

Next, a fourth embodiment of the present invention will be described with reference to FIG. FIG. 6 is a sequence diagram showing the operation of the broadcast receiving system according to the fourth embodiment. In each of the first to third embodiments, the case where the viewer carries the IC card 1 and goes to the store to purchase the product A has been described as an example. In the present embodiment, assuming that the viewer purchases the product A at the store 2A from home using the Internet or a telephone, various types of information exchanged between the store terminal 2 and the IC card 1 are sent to the network 6
A case of exchanging via the Internet will be described. Here, an example applied to the first embodiment will be described.
Alternatively, it can be similarly applied to the third embodiment.

First, the viewer inserts the IC card 1 into the store terminal 2
(Step 160). In response to this, the viewer terminal 5 reads the product purchase information from the IC card 1 (step 161) and notifies the store terminal 2 of the product purchase information via the network 6 (step 162). The store terminal 2 receives the product purchase information and, before and after this, enters into a purchase contract for a new product A with the viewer. Regarding this purchase contract, for example, the web page of the store terminal 2 is accessed from the viewer terminal 5 via the network 6 such as the Internet, and the desired product A
It is possible to select and select the purchase procedure, or to order by phone.

In the store terminal 2, in response to the purchase contents input based on the purchase (step 163), the purchase information of the product A purchased this time is added to the received product purchase information to update the product purchase information, and the update is performed. The viewer terminal 5 is notified of the product purchase information thus obtained and the purchase store information indicating the purchase store via the network 6 (step 164). In response to this, the viewer terminal 5 writes the new product purchase information and purchase store information in the IC card 1 (step 165).

Further, in the store terminal 2, when the predetermined product purchase condition is satisfied based on the updated product purchase information (step 166), the scrambled product A of the product A distributed by the broadcaster 3 is sent. The system key Ks for viewing the content sponsored by the manufacturer / seller is provided via the network 6 to the viewer terminal 5
(Step 167). In response to this, the viewer terminal 5 writes the system key Ks into the IC card 1 (step 168).

After that, when the viewer views the content, the system key Ks and the like written in step 168 is read from the IC card 1 connected to the viewer terminal 5 (step 170). Here, when the system key Ks is written in the IC card 1, it is determined that the content can be viewed (step 171), and the content is received and viewed as follows.

First, the reception controller 52 of the viewer terminal 5 receives the content data Ds and the data key KDs distributed by the broadcaster 3 using the digital broadcasting line 4 (step 172). Then, it is necessary to descramble the scrambled content data Ds from the system key Ks read from the IC card 1 and the scrambled data key KDs received via the digital broadcasting line 4. The data key KD is generated (step 173).

Subsequently, the scrambled content data Ds received by the reception control unit 52 is descrambled by using the generated data key KD (step 174) to generate the content data D (step). 175). The generated content data D is decoded by the reception control unit 52 and output as a reception output, whereby the viewer can view the desired content (step 176). System key Ks
If it is determined that the content is not viewable, the message that the desired content cannot be viewed is displayed.

Next, a fifth embodiment of the present invention will be described with reference to FIG. FIG. 7 is a sequence diagram showing the operation of the broadcast receiving system according to the fifth embodiment. In the first to fourth embodiments, the case where the viewing of the content broadcast is permitted when the predetermined purchase condition is satisfied according to the purchase of the product by the viewer has been described. In the present embodiment, a case will be described in which the charge amount for pay broadcasting is reduced when the purchase condition is satisfied.

When the viewer purchases the product A at the store 2A, the IC card 1 owned by the viewer is connected to the IC card I / F 21 of the store terminal 2 at the store 2A (step 100). As a result, the shop terminal control unit 22 of the shop terminal 2 reads past product purchase information in the memory of the IC card 1 via the IC card I / F 21 (step 101). Then, in the store terminal control unit 22, according to the purchase content input according to the purchase of the product (step 1
02), the product purchase information is updated by adding the purchase information of the product A purchased this time to the product purchase information read in step 101, and the updated product purchase information and the purchase store information indicating the purchase store are updated. Data is again written in the memory of the IC card 1 (step 103).

After that, when the viewer views the broadcast, the viewer inserts the IC card 1 in which the system key Ks is written according to the purchase of the product A into the IC card I / F 5 of the viewer terminal 5.
1 (step 180). As a result, the reception controller 52 of the viewer terminal 5 reads the system key Ks and the like from the IC card 1 connected to the IC card I / F 51 (step 181). Here, when the system key Ks is written in the IC card 1, it is determined that viewing is possible, and the Ks is used to generate the content data D, which is decoded and output as a reception output, whereby the viewer desires. To view the contents (step 18)
2).

Here, when the reception contract between the viewer and the broadcasting company 3 is paper view (pay-as-you-go charging) or flat-rate charging, the reception control section 52 of the viewer terminal 5 displays the viewing record information (contents). , Etc.), the viewer terminal 5
IC card 1 connected to the IC card I / F 51 of
(Step 183). Thereafter, the viewing record information, the product purchase information, and the like and the ID unique to the IC card 1 (or the viewer) are read from the IC card 1 by the reception control unit 52 (step 184), and the network connection unit 53 makes a network connection. The broadcaster 3 is notified via 6 (step 185).

The broadcasting company 3 receives the ID, the viewing record information, the product purchase information and the like, and calculates the charge amount for the viewing record (step 186). Then, it is judged whether or not a predetermined purchase condition is established (step 18).
7) If the purchase condition is satisfied, the charge information of the viewer who is the owner of the IC card 1 is calculated, and the charge amount is reduced, for example, based on the product purchase information (step 188).
If the purchase condition is satisfied, the charge amount will not be reduced. After that, the charge amount for the viewing may be notified from the broadcaster 3 to the viewer terminal 5 through the network 6.

As described above, when the predetermined purchase condition is satisfied according to the purchase of the product by the viewer, the charge amount of the pay broadcast is reduced. Therefore, in the first to fourth embodiments described above. It is possible to flexibly set the privilege for the viewer according to the satisfaction of the purchase condition as compared with the availability of viewing the content described above, and provide a wide range of choices to the sponsor company.

[0059]

As described above, the present invention permits viewing of a broadcast of a specific content funded by a company when a predetermined product purchase condition is satisfied by a viewer purchasing a product at a store terminal. Write the viewing control information to the card of the viewer connected to the store terminal, and connect to the viewer terminal among the various contents obtained by receiving the broadcast from the broadcaster on the viewer terminal. Since the viewer is allowed to view the broadcast of the specific content whose viewing is permitted by the viewing control information read from the viewer's card, when the viewer purchases the product, the company that manufactures / sells the product acts as the sponsor. You will be able to view the content. Therefore, since the viewer's request for viewing the content leads to the desire to purchase the product, the funds provided by the company as the sponsor for broadcasting the content can be efficiently linked to the sales of the product.

As a result, for example, a company can stop the creation / broadcasting of an advertisement, and the cost thereof can be significantly reduced, and the cancellation of this advertisement interrupts the advertisement content by interrupting the content desired by the viewer. . Therefore, it is possible for the viewer to continuously view the content, which can give a good impression to the viewer, and as a result, it is possible to increase the demand for viewing and further increase the willingness to purchase the product. .

[Brief description of drawings]

FIG. 1 is a block diagram showing a broadcast receiving system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a store terminal and a viewing terminal.

FIG. 3 is a sequence diagram showing an operation of the broadcast receiving system according to the first embodiment of the present invention.

FIG. 4 is a sequence diagram showing an operation of the broadcast receiving system according to the second embodiment of the present invention.

FIG. 5 is a sequence diagram showing an operation of the broadcast receiving system according to the third embodiment of the present invention.

FIG. 6 is a sequence diagram showing an operation of the broadcast receiving system according to the fourth embodiment of the present invention.

FIG. 7 is a sequence diagram showing an operation of the broadcast receiving system according to the fifth embodiment of the present invention.

[Explanation of symbols]

1 ... IC card, 2 ... Store terminal, 21 ... IC card interface, 22 ... Store terminal control unit, 23 ... Network connection unit, 2A ... Store, 3 ... Broadcaster, 4 ... Digital broadcasting line, 4A ... Communication satellite, 5 ... viewer terminal, 51 ...
IC card interface, 52 ... Reception control unit, 53
… Network connection, 6… Network, 7… Company,
D ... content data, Ds ... scrambled content data, KD ... data key, KDs ... scrambled data key, K ... system key, Ks ... scrambled system key, I ... descramble enable / disable information.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G06F 12/14 320 G06F 12/14 320B H04H 1/00 H04H 1/00 F 1/02 1/02 F H04N 7/173 640 H04N 7/173 640Z

Claims (16)

[Claims] 1. A broadcasting company that broadcasts various contents, a viewer terminal for a viewer to watch the contents broadcast from this broadcasting company, and a broadcasting of a specific content to the broadcasting company. A store terminal installed in a store that sells products of a company that provides funds, and a recording medium that can be carried by the viewer and that is connected to the viewer terminal and the store terminal and stores various information The store terminal, when a predetermined product purchase condition is satisfied by the purchase of the product by the viewer, provides viewing control information for permitting viewing of a broadcast of specific content funded by the company to the store terminal. There is a store terminal control means for writing to the recording medium of the connected viewer, the viewer terminal, among various contents obtained by receiving the broadcast from the broadcaster, Broadcast receiving system characterized in that it has a reception control means for permitting the viewing of the viewer's terminal connected to said viewer specific content that is permitted viewing in viewing control information read from the recording medium of the broadcast. 2. The broadcast receiving system according to claim 1, further comprising a network connecting the shop terminal and a viewer terminal, wherein the shop terminal control means purchases a predetermined product by the viewer. Writing viewing control information for permitting viewing of a broadcast of specific content funded by the company to a recording medium of the viewer connected to the viewer terminal via the network when the purchase condition is satisfied. A broadcast receiving system characterized by. 3. The broadcast receiving system according to claim 1, wherein the broadcaster encrypts and broadcasts various contents, and the store terminal control means decrypts the specific contents as the viewing control information. Writing the key information to the recording medium, and the reception control means permits the viewing by decrypting the decodable specific content based on the key information read from the recording medium as the viewing control information. A broadcast receiving system characterized by. 4. The broadcast receiving system according to claim 1, wherein the broadcaster encrypts and broadcasts various contents, and the store terminal control means determines whether or not the particular content can be viewed as the viewing control information. Is written in the recording medium, and the reception control unit stores in advance in the recording medium the specific content that is permitted to be viewed based on the availability information read from the recording medium as the viewing control information. A broadcast receiving system characterized by permitting viewing by decrypting using key information. 5. A broadcasting company that broadcasts various contents, a viewer terminal for a viewer to view the contents broadcast by this broadcasting company, and a broadcasting of specific contents to the broadcasting company. A store terminal installed in a store that sells products of a company that provides funds, a recording medium that is portable to the viewer and that is connected to the viewer terminal and the store terminal and stores various information, A network connecting a store terminal and a broadcaster is provided, wherein the store terminal broadcasts specific content funded by the company when a predetermined product purchase condition is satisfied by the purchase of the product by the viewer. The viewing control information for permitting the viewing and the ID pre-recorded in the recording medium of the viewer connected to the store terminal via the network. The broadcaster adds the ID to the specific content corresponding to the viewing control information based on the viewing control information and the ID notified from the shop terminal. An ID that matches the ID read from the recording medium of the viewer connected to the viewer terminal among various contents obtained by receiving the broadcast from the broadcaster. A broadcast receiving system comprising a reception control means for permitting viewing of a broadcast of content to which is added. 6. The broadcast receiving system according to claim 1, wherein the store terminal control means displays product purchase information indicating a history of purchase contents according to the purchase of the product by the viewer. Update recording on the recording medium of the viewer connected to the store terminal, and determine whether the product purchase condition is satisfied based on the product purchase information read from the recording medium and the new purchase content of the product. A broadcast receiving system characterized by. 7. The broadcast receiving system according to claim 2, wherein the shop terminal control means stores, in the viewer terminal, product purchase information indicating a history of purchase contents according to the viewer's purchase of the product. Based on the product purchase information read out from the recording medium via the network and recorded on the recording medium of the connected viewer via the network, and the contents of new purchase of the product, A broadcast receiving system characterized by determining establishment. 8. A broadcaster who broadcasts various contents, a viewer terminal for a viewer to view the contents broadcast by this broadcaster, and a broadcast of specific contents to the broadcaster. A store terminal installed in a store that sells products of a company that provides funds, a recording medium that is portable to the viewer and that is connected to the viewer terminal and the store terminal and stores various information, The shop terminal is provided with a network that connects a viewer terminal and a broadcaster, and the shop terminal is connected to the shop terminal with product purchase information indicating a history of purchase contents according to the purchase of the product by the viewer. And viewing record information indicating contents of viewing by the viewer with respect to the broadcast from the broadcaster. , Writes to the recording medium connected to the viewer's terminal,
A reception control unit that reads out the viewing record information, the product purchase information, and the ID recorded in advance in the recording medium from the recording medium as necessary, and notifies the broadcaster via the network, The broadcaster receives the viewing record information, the product purchase information and the ID notified from the viewer terminal, calculates the charge amount to the viewer corresponding to the ID based on the viewer record information, and A broadcast receiving system, wherein the charge amount is reduced when a predetermined product purchase condition is satisfied by the product purchase information. 9. The broadcast receiving system according to claim 8, wherein the store terminal control means connects product purchase information indicating a history of purchase contents to the store terminal in response to the purchase of the product by the viewer. A broadcast receiving system characterized by performing update recording on the recording medium of the viewer concerned. 10. The broadcast receiving system according to claim 8, wherein the network connects a store terminal and a viewer terminal, and the store terminal control means purchases the product according to the purchase of the product by the viewer. A broadcast receiving system, characterized in that product purchase information indicating a history of contents is updated and recorded in a recording medium of the viewer connected to the viewer terminal via the network. 11. A broadcasting company that broadcasts various contents, a viewer terminal for a viewer to watch the contents broadcast from this broadcasting company, and a broadcasting of specific contents to the broadcasting company. A store terminal installed in a store that sells products of a company that provides funds, and a recording medium that can be carried by the viewer and that is connected to the viewer terminal and the store terminal and stores various information Using the broadcast receiving system, a broadcast receiving method for permitting only specific viewers to view the content, wherein at the store terminal, when a predetermined product purchase condition is satisfied by the viewer purchasing the product, Writing viewing control information for permitting viewing of a broadcast of specific content funded by the company into a recording medium of the viewer connected to the store terminal, Among the various contents obtained by receiving the broadcast from the broadcaster, the broadcast of the specific content permitted to be viewed by the viewing control information read from the recording medium of the viewer connected to the viewer terminal. A broadcast receiving method characterized by permitting viewing of. 12. The broadcast receiving method according to claim 11, wherein when the predetermined product purchase condition is satisfied by the viewer purchasing the product at the shop terminal, the specific content broadcasted by the company is broadcast. The broadcast receiving method, characterized in that the viewing control information for permitting viewing is written in a recording medium of the viewer connected to the viewer terminal via a network. 13. The broadcast receiving method according to claim 11 or 12, wherein the broadcaster encrypts and broadcasts various contents, and the store terminal decrypts the specific contents as the viewing control information. Is written in the recording medium, and the viewer terminal permits viewing by decrypting the specific content that can be decrypted based on the key information read from the recording medium as the viewing control information. Broadcast receiving method. 14. The broadcast receiving system according to claim 11 or 12, wherein the broadcaster encrypts and broadcasts various contents, and the store terminal indicates whether or not the particular content can be viewed as the viewing control information. Key information pre-stored in the recording medium with respect to the specific content that is permitted to be viewed based on the permission information read from the recording medium as the viewing control information by the reception control unit by writing the permission information into the recording medium. A broadcast receiving system characterized by permitting viewing by decoding using. 15. A broadcasting company that broadcasts various contents, a viewer terminal for a viewer to watch the contents broadcast by this broadcasting company, and a broadcasting of specific contents to the broadcasting company. A store terminal installed in a store that sells products of a company that provides funds, a recording medium that is portable to the viewer and that is connected to the viewer terminal and the store terminal and stores various information, A broadcast receiving method for permitting only specific viewers to view content using a broadcast receiving system including a network connecting a store terminal and a broadcaster, wherein the store terminal uses the product Access to the store terminal and viewing control information for permitting viewing of the broadcast of the specific content funded by the company when the predetermined product purchase condition is satisfied by the purchase of The ID recorded in advance in the recording medium of the viewer concerned is notified to the broadcasting company via the network, and the viewing control information and the ID notified from the store terminal by the broadcasting company. Based on the above, the ID is added to the specific content corresponding to the viewing control information and broadcast, and among the various contents obtained by receiving the broadcast from the broadcaster at the viewer terminal, the viewer I that matches the ID read from the recording medium of the viewer connected to the terminal
A broadcast receiving method comprising permitting viewing of a broadcast of content to which D is added. 16. A broadcasting company that broadcasts various contents, a viewer terminal for a viewer to watch the contents broadcast from this broadcasting company, and a broadcasting of specific contents to the broadcasting company. A store terminal installed in a store that sells products of a company that provides funds, a recording medium that is portable to the viewer and that is connected to the viewer terminal and the store terminal and stores various information, A broadcast receiving method for permitting only specific viewers to view content using a broadcast receiving system comprising a viewer terminal and a network connecting broadcasters, wherein the store terminal uses the viewer According to the purchase of the product, the product purchase information indicating the history of the purchase contents is updated and recorded in the recording medium of the viewer connected to the store terminal, Viewing record information indicating the viewing content by the viewer for the broadcasting of the operator, and writes to the recording medium connected to the viewer's terminal,
If necessary, the viewing record information, the product purchase information and the ID recorded in advance in the recording medium are read from the recording medium and notified to the broadcaster via the network. The viewing record information, the product purchase information, and the ID notified from the viewer terminal are received, the charge amount to the viewer corresponding to the ID is calculated based on the viewer record information, and the predetermined amount is determined by the product purchase information. The method of receiving a broadcast, characterized in that the charge amount is reduced when the product purchase condition of is satisfied.