JP2002125211A - Pay broadcast system and pay broadcast receiver, and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pay broadcast reception system that can freely transfer contract information between IC cards in the same group so as to enhance convenience of users. SOLUTION: The pay broadcast system of this invention, where propriety of the contract information with respect to viewing of pay programs is discriminated and then the pay programs are served to users, is provided with a 1st IC card C1 that stores the contract information with respect to viewing of pay programs in its storage area 30, a 2nd IC card C2 belonging to the same group as that of the 1st IC card C1 and with a receiver 1 having transfer functions 21, 22, 23 that transfer at least a part of the stored contract information in the 1st IC card C1 to a storage area 30 of a 2nd IC card C2 between the 1st IC card C1 and the 2nd IC card C2 and having a demultiplexer 13 that discriminates the propriety of viewing of pay programs on the basis of the transferred contract information and decodes a broadcast signal of the pay program when the discrimination indicates the possibility of viewing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcasting system for pay broadcasting, such as satellite broadcasting, terrestrial broadcasting, and CATV (cable television), and more particularly to a broadcasting system for moving contract information stored in a module. About the system.

[0002]

2. Description of the Related Art Recently, satellite broadcasting, terrestrial broadcasting, CATV,
In broadcasting systems such as these, those dealing with pay broadcasting are becoming widespread. In a broadcasting system that handles such pay broadcasting, for example, an IC card or the like is used, contract information is confirmed, and for example, scrambled image information is decoded, and then a broadcast signal is provided to a user. .

Therefore, even in the same home, if there are a plurality of receivers, at least one IC is required for each receiver.
It is necessary to connect a card, and I
A contract is made for the number of C cards, or the contracted card is replaced by a receiver to be watched as needed and connected to watch.

[0004] As described above, the viewing contract is assigned to a unique ID (identi).
A conditional access system is established by uniquely setting an IC card having a fication number) and collecting the consideration from the subscriber.

In other words, issuing a plurality of IC cards at the same price for a single contract, even within the same home, may lead to fraudulent activities such as passing away the card (use of the same home as a false home) And distributing a plurality of cards for the price of one card is not performed because it leads to the collapse of the system.

[0006] Therefore, from the relationship with the subscription fee, the viewer consequently makes a contract for only necessary channels in the environment where each receiver is installed. For example, a receiver installed in a living room or the like has a contract for viewing many channels such as movies and music, and a receiver such as a children's room has a contract for a channel for broadcasting programs for children such as animation. There is a tendency for contracts to be made as necessary.

In such a case, for example, a program for children happens to be broadcast in a special program or the like, and can be viewed on a receiver installed in a living room, but cannot be viewed on a receiver in a children's room. Furthermore, sports and the like are broadcast in the same time zone, and there may be a case where it is not desired to view a program for children with a receiver installed in the living room or the like.

[0008] Further, even if a plurality of channels are contracted, if a plurality of programs are desired to be viewed in the same time zone, it is desired to perform processing such as recording the other program by another receiver. In some cases, if the IC card connected to the receiver does not have a contract for the program, recording cannot be performed.

In other words, there are a plurality of receivers when there is a desire to view a plurality of programs at the same time regardless of whether the contract is divided into a plurality of cards or concentrated on one card. Inconveniently cannot be viewed.

[0010] Periodic upload of the viewing history of the postpaid PPV (pay per view) is also performed for each receiver, and communication is performed each time even when the total amount is small.
Resources for communication may be wasted.

For such a broadcasting system, Japanese Patent Laid-Open No.
Japanese Patent Application Publication No. 000-4431 discloses a technique of a broadcasting system in which an ECM (Entitlement Control Message) that cannot be solved with a card without a contract is replaced with a card with a contract. Also, JP-A-10-178629
In Japanese Patent Laid-Open Publication No. H10-209, a technique of transferring a decryption key itself for decrypting scramble from a main card to a sub card between IC cards used in a broadcasting system is disclosed.

In these cases, if the decryption key data itself for simply decrypting the scramble is not constantly transferred, the sub card cannot continue to watch the video information. Therefore, when the transfer state of the decryption key data becomes unstable, the viewing of the video tends to be interrupted. In addition, there is a disadvantage that the main card must be continuously activated while watching. That is, since the contract information of the card itself is not moved, the contract information of the sub card itself does not change, so that the function of the sub card alone does not change.

[0013]

As described above, in the conventional system and its receiver, when a pay channel which is a home having a plurality of receivers is to be viewed, the pay channel is viewed by all the receivers. If you try to do so, each receiver must sign a contract. For example, only one receiver can sign a contract due to financial problems, and the other receivers must exchange IC cards with each other. Inconveniences such as inability to view are caused. Also, if contracts are made intensively with one card, if programs that you want to watch at the same time overlap, you must give up watching one of the programs, and you can not watch even though you have a contract Dissatisfaction occurs.

[0014] In addition, regular uploading of the viewing history of the postpaid PPV is also performed for each receiver, and even when the total amount is small, communication is performed each time, so that communication resources may be wasted. .

Further, even if the scramble is released by another card, the contract information does not move between the cards, so that the other card must be continuously activated, and after the communication is interrupted, However, there is a problem that the card alone, which lacks the contract information, cannot obtain further functions.

[0016] In order to solve the above-mentioned problems, the present invention can improve the user's convenience by freely moving contract information (or viewing history information) between cards in the same group. It is intended to provide a receiving system.

[0017]

SUMMARY OF THE INVENTION The present invention relates to a pay-broadcasting system which decodes and provides a broadcast signal of a pay program after judging whether or not contract information relating to viewing of a pay program is available. A first storage medium storing contract information in a storage area, a second storage medium belonging to the same group as the first storage medium and having a storage area, and at least one of the contract information stored in the first storage medium Moving means for moving a part to the storage area of the second storage medium; and viewing and listening of the pay program based on the contract information stored in the storage area of the second storage medium moved by the moving means. And a decoding device that decodes a broadcast signal of a pay program when it is determined whether the broadcast is possible or not.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a pay broadcast receiving apparatus according to the present invention.

<First Embodiment> In the first embodiment, a pay-broadcast receiving apparatus that moves contract information of a plurality of grouped cards between cards is specified. FIG. 1 is a block diagram showing a configuration of an embodiment of a pay broadcast receiving apparatus according to a first embodiment of the present invention, and FIG. 2 shows an example of an EMM for grouping IC cards of the pay broadcast receiving apparatus. FIG. 3 and FIG. 3 are configuration diagrams showing an example of the configuration of an IC card including the contents of the first memory.

(Configuration of Pay Broadcast Receiver) The pay broadcast receiver according to the present invention is represented as a general digital broadcast receiver 1 in FIG. In the digital broadcast receiver 1, a broadcast wave received by the receiving unit 11 is input to a descrambler 12 for descrambling based on a conditional access system, and is a scrambled program. If so, a descrambling process is performed and input to the demultiplexer 13. If the program to be input is a program that has not been scrambled, the program is passed through without descrambling. The demultiplexer 13 extracts desired data from the transport packet and decomposes the packet, and the data serving as control data is subjected to appropriate processing under the control of the control device 25 via the control / data bus 19, thereby obtaining video and audio data. The data is input to the AV decoder 14.

For example, an EMM (En
titlement Management Message) data and ECM (Enti
tlement Control Message) data is separated by the demultiplexer 13 and then transmitted through the IC card I / F 21
It is transmitted to and received from the C card C1. This EMM is information relating to a contract in conditional access, and the IC card C1
Is stored in the memory 30 inside. The ECM is control information linked to the program, and mainly information for controlling the descrambler is transmitted. EC with demultiplexer 13
When detecting the M packet, the control device 25, the IC card I
/ F21 to the IC card C1. As shown in FIG. 3, in the IC card C1, an interface unit 27 for inputting and outputting signals to and from the outside, a CPU 28 for controlling the entire operation, and a ROM in which an operation program and the like are stored.
29, and an EEPROM 30 in which EMM data and ECM data are rewritably stored. IC
The contract information stored in the EEPROM 30 in the card C1 and the input ECM are checked under the control of the CPU 28, and if the program is viewable, the encrypted key information in the ECM is decrypted and received. Return to machine 1. This key information is given to the descrambler 13 and used for descrambling processing.

The AV decoder 14 decompresses and outputs the compressed and encoded data, and the display device 15 outputs a TV.
To OSD (On Screen)
Display). Also in this configuration,
A second IC card I / F 22 is provided, and processing can be performed according to a plurality of cards.

The configuration described in detail above is a receiver based on the conditional access system. In the conditional access system, viewing control and billing control of a program are performed by EMM and ECM sent from a broadcast station. In other words, in order to view a pay program, an IC card must be connected to the receiver, and viewing is possible only by setting valid contract information in the IC card.

Next, the grouping of each IC card, which is essential for the implementation of the present invention, will be described below with reference to FIGS. FIG. 2 shows an example of the EMM. The EMM is an IC card-specific Pers indicating a destination.
The information is composed of an online ID and subsequent contract information. In this case, instruction information for grouping cards, Gr
and an ID and a group key.
Among them, the instruction information, Group ID, and Groupkey, which are contract information other than the Personal ID, are information encrypted with the key set in each IC card.

Such an EMM is sent to the memory 30 of the IC card C1 shown in FIG. 3, and a group ID and a key are set as shown in FIG. 3A. Similarly, the EMM shown in FIG. 2B is sent to the card C2 shown in FIG. 3B, and the group ID and key are set.

The setting of such a group is performed in response to a request from a viewer or a request from a broadcasting station, and the broadcasting station has a right to determine which card is to be grouped. It is possible to arbitrarily cancel the setting of the group.

(Transfer Processing) Next, the transmission / reception processing of the viewing contract information within the range of such grouped IC cards, which is a feature of the present invention, will be described below with reference to the drawings. FIG. 4 is an IC of a pay broadcast receiving apparatus according to the present invention.
FIG. 5 is a diagram schematically showing the contents of the second memory of the card, FIG. 5 is a diagram showing an example of a state in which a plurality of pay broadcast receiving apparatuses are placed in a home, and FIG. FIG. 7 is a diagram showing an example of a message to be displayed, FIG. 8 is a flowchart showing an example of a process of an IC card, and FIG. 9 is a communication for explaining an example of a communication process between a plurality of IC cards. It is a sequence.

FIG. 4 is a schematic diagram of the contract information part of FIG. 3. FIG. 4A shows that the contract of the IC card C1 is three channel contracts from channel 1 to channel 3, and b) indicates that the contract for the IC card C2 is a contract for only the channel 3. For these IC cards C1 and C2, for example, the receiver 1 installed in the living room as shown in FIG.
It is assumed that the IC card C2 is connected to the receiver 2 installed in the child's room. As an example, assuming that broadcasting is being performed in a program schedule as shown in FIG. 6, a case where the user wants to view a program of channel 1 at the receiver 2 at this time will be described.

Since there is no contract for channel 1 in the currently connected IC card C2, when a program on this channel is selected, a message such as that shown in FIG. 7A is displayed to notify that viewing is not possible. You. So, IC
The card C2 is connected to the receiver 1, a program table as shown in FIG. 6 is displayed, and a desired program is selected. Here, for example, when a program from 19:00 on channel 1 is selected, a message indicating that the program can be viewed on the IC card C1 is displayed as shown in FIG. 7B. Then, an operation for setting the viewing right to the IC card C2 is performed, and if YES is selected for the message as shown in FIG. And
Thereafter, as shown in FIG. 7D, a message that can be viewed on the IC card C2 is displayed. By connecting the IC card C2 after such user's operation to the receiver 2, the contract information of only the previously selected program, not all the programs of the IC card C1, is copied to the IC card C2 (or (Moving), it becomes possible to view the content on the receiver 2 as well.

The operation of the receiver 1 and the operation of the IC card C1 in the moving process at this time will be described in detail with reference to the flowchart of FIG. 8 and the communication sequence of FIG.
First, a description will be given according to a communication sequence.
The transfer control unit 23 controls the transfer processing of the contract information between the IC cards.
When a program viewing request that is not present in No. 2 is confirmed with the IC card C1 (S31), it is checked whether or not there is a viewing contract, and the result is returned (S32). IC card 1
If the result that the user has the viewing right is obtained, a message as shown in FIG.
When YES is selected on this display screen, the IC card I /
F21 is driven to issue a movement command to the IC card C1, which is a request to acquire contract information including information (date and time, channel, etc.) specifying the program selected by the viewer (S3).
3).

[0031] If there is no limit to the particular copy number of the case 1, where, if there is acquired reservation card C1, is encrypted with the encryption key K _g a desired contract information. Alternatively, a certain number of restrictions may be provided as in Case 2. If a limit is set for a certain number of times, after confirming that the copying process (moving process) is within the set number of times, the desired contract information is encrypted with the encryption key _Kg and the number of contracts is subtracted. Then, the contract information is transferred (S34).

[0032] In the IC card C2 side This contract information is decoded by the encryption key _{K g,} and the result is transferred is encrypted with the encryption key _{K g} (S35). On the other hand, IC card C
On the one side, in case 1, the relevant part of the contract information is disabled. In case 2, the corresponding part of the contract information is stored. Then, each completion signal is transmitted from the IC card C1 is encrypted with the encryption key _{K g} to the IC card C2 (S36). In the IC card 2 side, on the other hand, it is decrypted with the encryption key K _g, contracts signal received previously is effective.

The processing after the IC card C1 receives the move command will be described with reference to a flowchart.
When the IC card C2 requests program viewing because the contract information is insufficient, the IC card C1 that has received the move request command reads out the contract information stored in the storage area (S12), and reads the contract information (S12). The validity period within the range of the contract information is set (S13). At this time, IC
The processing from the card C1 to another IC card C2, for example, may be a moving processing or may be a processing in which copying is repeated endlessly. There may be. Then, the contract information and the group authenticator that can be copied or moved are encrypted with the group encryption key (S14), and the E to the group ID is transmitted.
MM is generated (S15), a response is generated and sent to the IC card C2 or the like (S16, S17).

When setting is made for this, (S1
8) The response data is decrypted in the control by the movement control unit 23 (S19), and if the check is OK (S20), it is temporarily stored in the memory 26 (S2).
1). Then, the status is set to OK (S22), and I
By driving the C card I / F 22, the contents of the memory 26 are sent to the IC card C2 as a command (S2).
3). If the status is NG (S24), status =
Similarly, drive the IC card I / F22 as NG and
Sent to card C2. On the other hand, IC card C2
Then, decryption is performed using the group encryption key, the authenticator is further checked, contract information as shown in FIG. 4D is stored in the storage area, and information indicating that the processing has been completed normally is returned.

Similarly, when this response is issued as a command to the IC card C1, a confirmation process is performed (S25), and if the status is OK (S26),
The setting information of the contract invalidation period as shown in FIG. 4C, which means that the transfer of the right to the IC card C1 has been completed, is set (S27), and this response is generated (S28).

By performing the operation of copying or moving the contract information, the IC card C that has obtained the requested contract information
2 can be inserted into the original receiver 2 and the desired program can be viewed.
In 1, the program cannot be viewed.

In the first embodiment, the IC card I / F2
Although the case where there are two 1, 2 is shown, this may be one. In this case, the same operation is performed while alternately exchanging the two IC cards C1 and C2 in accordance with a message requesting exchange as shown in (e) and (f) of FIG. Moving processing can be realized.

<Second Embodiment> A second embodiment specifies a pay-broadcast receiver system in which card contract information is transferred between a plurality of networked receivers. Hereinafter, a pay-broadcast receiving apparatus system which is an example of the second embodiment and is performed between a plurality of receiving apparatuses will be described in detail with reference to the drawings. FIG. 10 is a block diagram showing the configuration of an embodiment of a pay broadcast receiving apparatus according to the second embodiment of the present invention, and FIG. 11 is a communication diagram for explaining an example of communication processing between a plurality of pay broadcast receiving apparatuses. It is a sequence.

This pay broadcast receiving apparatus has substantially the same configuration as that of the pay broadcast receiving apparatus shown in FIG. 1 and has only a single IC card I / F 21 and is connected to a network or the like. It is characterized in that the communication device 31 performs communication with another wired broadcast receiving device using the communication device 31 that performs wireless processing, thereby transferring contract information with another IC card C2 or the like. Specifically, the communication device 31 is a wired interface such as 1394, Bluetooth (Bluetooth) or wireless LA.
N. In such an environment, there is no particular need to exchange the IC card, and the operation of moving the contract information via this network is performed by an operation from one of the cable broadcast receiving apparatuses.

For example, as shown in the first embodiment, an IC
FIG. 11 shows a timing chart of a communication sequence example when a non-contracted program is temporarily viewed on the receiver 2 connected to the card C2. Receivers 1 and 2 are respectively shown in FIG.
, And can communicate using the communication device 31. The communication protocol is implemented in the communication device, and follows the procedure from establishment to release of the communication path. FIG. 11 shows a sequence related to the present embodiment and an IC card operation in information transmitted and received in a state where a communication path is established.

As in the first embodiment, when an attempt is made to view a program from 19:00 of channel 1 from the program table of FIG. 6, after establishing a communication channel (S41), first, the receiver 1
It is asked whether an IC card with a contract is connected to (S42). On the other hand, if a usable IC card is connected, information indicating that is connected is returned from the receiver 1 (S43). At this time, when there is no viewable contract for the connected IC card, the fact is notified, and the receiver 1 receiving the notice restarts the other receivers from the first procedure.

When there is a contract with the receiver 1 and it is desired to transfer the right of use, information indicating this is transmitted from the receiver 2 to the receiver 1 (S44), and the receiver 1 reserves the program. to make sure that does not, to reply to encrypt the particular contract information relating to the absence if the program is reserved in the group key K _g (S45). The receiver 2 receiving this sends this data to the IC card C2, and performs provisional setting of the contract method.
The information received in the IC card C2 decrypted by the encryption key _{K g,}
And state stored in the memory in the temporary setting (not viewable in the current state), when the successfully stored return encrypts the result with the cryptographic key K _g.

The encrypted status information for obtaining the contract information is transmitted to the receiver 2 (S46), and the IC card C
Decoded at 2, a portion corresponding contract information has been sent earlier so as to disable the information to enable the previous contract information sent reply encrypted with the encryption key K _g (S
47). The IC card C2 receiving this sets the temporary setting to the final setting state, validates the contract information, and enables viewing as desired by the user.

As described above, according to the second embodiment,
By providing the communication device 31 even between a plurality of cable broadcast receiving devices installed at distant positions, the contract information can be moved or copied between IC cards in the same group as in the first embodiment. It becomes possible.

<Third Embodiment> In a third embodiment, pay broadcast reception is performed in which contract information is moved when the order of IC cards is set such that one IC card is a master and another IC card is a slave. This specifies the device system. FIG. 12 is a diagram schematically illustrating contract information recorded in memories of an IC card C1 serving as a master and an IC card C2 serving as a slave according to the third embodiment.

The IC card C1, which is a master, includes information such as a contract channel, a contract period, and how many contracts are held. On the other hand, there is no particular need to have a contract with the IC card C2 serving as a slave, and a contract may be taken every time, or only a contract may be taken with itself.

The communication sequence at this time is the same as that shown in FIG.
become. The difference is that the total number is managed, the number of contract information lent is counted, and if the period is set and rented, after the period ends, if the period is not set, the lent contract information is This is a point that is added when the loan is returned in the reverse procedure.

The change in the memory state of the IC cards C1 and C2 at this time is as shown in FIG. 12. In the IC card C1, the total number of rights to Ch1 is subtracted by one from the state of FIG. Change. Further, the IC card C2 changes from a state in which there is no contract as shown in (c) to a state in which a contract for ch1 is set as in (d).

As described above, in the third embodiment, each IC card is set as a master or a slave, and contract information can be moved (copiable) from the master IC card to the slave IC card. Becomes

<Fourth Embodiment> The fourth embodiment specifies a method of collecting viewing histories such as postpaid PPV (pay per view) and sending them to the center. In the embodiments described above, the contract information at the time of viewing is moved because the user views in the range of the contract, but the fourth embodiment is a contract form in which the user is charged according to the viewing history. The viewing history is moved between the cards. Hereinafter, a fourth embodiment will be described with reference to the drawings. FIG. 13 is a block diagram showing the configuration of an embodiment of a pay broadcast receiving apparatus according to a fourth embodiment of the present invention, and FIG. FIG. 15 is a diagram schematically showing the contents of the memory of the IC card.

The postpaid PPV is a billing method in which the viewing history is collected at the center and billing is performed. However, if the number of terminals increases, the time required for collecting the viewing history and the amount of communication increase, resulting in a large loss. . If networking is performed by a receiver at home, it is not particularly necessary to upload the viewing history for each receiver, and it is more efficient to collectively upload the viewing history with one receiver.

In order to perform such processing, if there is only one receiver capable of performing center communication as shown in FIG. 13, it is sufficient that the other receivers are conventional pay broadcast receiving apparatuses.
The pay broadcast receiving apparatus shown in FIG. 13 has substantially the same configuration as the pay broadcast receiving apparatus shown in FIG.
Further, it has a center communication device 32. The center communication device 32 is a device for communicating with the center according to a predetermined procedure. The center communication device 32 receives viewing history information from an IC card connected to a central receiver among a plurality of receivers grouped by a network or the like. When the collection of the data is instructed, the receiver connected to the network is inquired about the presence or absence of the viewing history.

FIG. 14 shows an operation sequence of the viewing history. In this sequence, first, the IC card C1
A communication path is established between the receiver 1 connected to the IC card C2 and the receiver 2 connected to the IC card C2 (S51). next,
At the time when the viewing history information is collected, the IC card C1
Sends a signal requesting collection of viewing history information (S
52). IC card C2 that has received the viewing history collection request
To reply encrypted with the group key K _g If there is upload the information to be in the viewing history information, which is stored in its own memory (S53). At this time, an individual ID is added to identify itself.

The IC card C1 receiving this stores an ID for indicating from which card it is collected in its own memory as shown in FIG. 15, and at the same time stores a viewing history. If the data can be stored normally, the result is notified to the IC card C2 (S
54), the IC card C2 deletes the transmitted viewing history and notifies the IC card C1 of the deletion (S55).

In response to this, the IC card C1 issues an instruction to the receiver 1 to communicate with the center when the memory of the IC card exceeds a predetermined value or at a predetermined time, and stores the stored viewing history information. Is uploaded to the center via the center communication device 113.

As described above in detail, in the fourth embodiment, after viewing has been completed, viewing history information is collected, compiled into one of the IC cards in the group, and uploaded to the center. Thus, it is possible to provide a pay-broadcast receiving system of the postpaid PPV system that can notify the viewing history information very efficiently.

[0057]

As described above, according to the present invention,
For example, by freely transferring contract information between a plurality of IC cards having a group set within a limited range such as at home, pay broadcasting can be performed by a plurality of receivers without distributing illegally viewable cards. It is possible to provide a cable broadcast receiving system that allows viewing.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a pay broadcast receiving apparatus according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an example of an EMM for grouping IC cards in a pay broadcast receiving apparatus according to the present invention.

FIG. 3 is a configuration diagram showing an example of a configuration of an IC card including first memory contents of the pay broadcast receiving apparatus according to the present invention.

FIG. 4 is a diagram schematically showing a second memory content of an IC card of the pay broadcast receiving apparatus according to the present invention.

FIG. 5 is a diagram showing an example of a state in which a plurality of pay broadcast receiving apparatuses according to the present invention are placed at home.

FIG. 6 is a diagram showing an example of the display of a program guide and a program guide of the pay broadcast receiving apparatus according to the present invention.

FIG. 7 is a diagram showing an example of a message displayed by the pay broadcast receiving apparatus according to the present invention.

FIG. 8 is a flowchart illustrating an example of an IC card process of the pay broadcast receiving apparatus according to the first embodiment of the present invention.

FIG. 9 is a communication sequence illustrating an example of communication processing between a plurality of IC cards mounted on the pay broadcast receiving apparatus according to the first embodiment of the present invention.

FIG. 10 is a block diagram showing a configuration of an embodiment of a pay broadcast receiving apparatus according to a second embodiment of the present invention.

FIG. 11 is a communication sequence for explaining an example of communication processing between a plurality of pay broadcast receiving apparatuses according to the second embodiment of the present invention.

FIG. 12 is a diagram schematically showing the contents of a memory of an IC card of a pay broadcast receiving apparatus according to a third embodiment of the present invention.

FIG. 13 is a block diagram showing a configuration of an embodiment of a pay broadcast receiving apparatus according to a fourth embodiment of the present invention.

FIG. 14 is an operation sequence showing an example of an IC card process of the pay broadcast receiving apparatus according to the fourth embodiment of the present invention.

FIG. 15 is a diagram schematically showing the contents of a memory of an IC card of a pay broadcast receiving apparatus according to a fourth embodiment of the present invention.

[Explanation of symbols]

11 receiving unit, 12 descrambler, 13 demultiplexer, 14 AV decoder, 15 display device, 16
... Input devices, 21, 22 ... IC card I / F, 23: Movement control unit, 24: Viewing control unit, 25: Control device, 26 ...
Memory, C1 ... IC card 1, C2 ... IC card 2.

Claims (11)

[Claims] 1. A pay broadcasting system for decoding and providing a broadcast signal of a pay program after judging whether or not contract information relating to the view of a pay program is available, wherein the contract information relating to the view of the pay program is stored in a storage area. A first storage medium, a second storage medium belonging to the same group as the first storage medium and having a storage area, and storing at least a part of the contract information stored in the first storage medium in the second storage medium Moving means for moving to the storage area of the second recording medium and the contract information stored in the storage area of the second recording medium moved by the moving means, and it is possible to judge whether or not to view the pay program, and to do so. A receiver having decoding means for decoding the broadcast signal of the pay program. 2. A pay-broadcast receiving apparatus for decoding and providing a broadcast signal of a pay program after judging whether or not contract information relating to the view of a pay program is available, wherein the storage area stores contract information related to the view of the pay program. And a second storage medium belonging to the same group as the first storage medium and having a storage area is connected, and at least a part of the contract information stored in the first storage medium is stored in the first storage medium. Moving means for moving to the storage area of the second storage medium; and determining whether or not to view the pay program based on the contract information stored in the storage area of the second recording medium moved by the moving means. Decoding means for decoding the broadcast signal of the pay program when this is possible. 3. A storage medium used in a pay-broadcasting system for providing a broadcast signal of a pay-program by decoding the broadcast signal, the storage medium having a storage area for storing first contract information relating to viewing of the pay-broadcast system of the pay-program. Storage means, output means for outputting at least a part of the first contract information stored in the storage means in response to a control signal given from the outside, and output means in the first contract information output Invalidating means for invalidating the part which has been set; determining means for determining whether to store second contract information different from the first contract information provided from the outside; and determining that the determining means should store the second contract information. And a second storage means having a storage area for storing the second contract information. 4. A storage medium used in a pay-broadcasting system for providing a broadcast signal of a pay-program by decoding the broadcast signal, the first storage medium having a storage area for storing first contract information on viewing of the pay-broadcast system in the pay-broadcast system. Storage means, output means for outputting contract information within a contract period of the first contract information stored in the storage means according to a control signal given from the outside, Invalidating means for invalidating the contract information output by the output means in the inside, determining means for determining whether to store second contract information different from the first contract information provided from outside, and the determining means A storage unit having a storage area for storing the second contract information when it is determined that the second contract information should be stored. 5. A pay broadcasting system for decoding and providing a broadcast signal of a pay program after judging whether or not contract information relating to viewing of a pay program is available, wherein a storage area for storing contract information relating to viewing of the pay program is provided. A first storage medium, a second storage medium belonging to the same group as the first storage medium and having a storage area, and a second storage medium for storing at least a part of the contract information stored in the first storage medium. A moving means capable of performing a moving process for moving to a storage area of the medium up to a predetermined number of times, and viewing / listening of a pay program based on the contract information stored in the second storage medium moved by the moving means. A receiving device having decoding means for judging whether or not this is possible and decoding the broadcast signal of the pay program when this is possible. 6. A storage medium used in a pay broadcasting system for decoding and providing a broadcast signal of a pay program, wherein the first storage information stores first contract information regarding viewing of the pay program in the pay broadcast system in a storage area. Means for outputting a part of the first contract information stored in the storage means up to a predetermined number of times according to a control signal given from the outside; Invalidating means for invalidating the contract information output by the output means in the information; determining means for determining whether to store second contract information different from the first contract information provided from outside; A storage medium comprising: a second storage unit configured to store the second contract information in a storage area when the determination unit determines that the second contract information should be stored. 7. A storage medium used in a pay broadcasting system for decoding and providing a broadcast signal of a pay program, wherein the first storage information stores first contract information relating to viewing of the pay program in the pay broadcast system in a storage area. Means for outputting a part of the contract information within the contract period of the first contract information stored in the storage means in response to a control signal given from the outside, with a predetermined number of times as an upper limit. Output means for performing, invalidation means for invalidating the contract information output by the output means in the first contract information, and whether to store second contract information different from the first contract information provided from outside A storage medium comprising: a determination unit that determines whether the second contract information is to be stored; and a second storage unit that stores the second contract information in a storage area when the determination unit determines that the second contract information should be stored. 8. A pay-broadcast receiving apparatus for decoding and providing a broadcast signal of a pay program after judging whether or not contract information related to viewing of a pay program is available, wherein the storage area stores contract information related to view of the pay program. And a second storage medium belonging to the same group as the first storage medium and having a storage area are connected via a recording medium interface, and are stored in the first storage medium. A moving unit for moving at least a part of the contract information to a storage area of the second storage medium; and a pay program based on the contract information stored in the second storage medium moved by the moving unit. A pay-broadcast receiving apparatus comprising: decoding means for judging whether or not viewing is possible and decoding a broadcast signal of a pay program when this is possible. 9. A pay-broadcast receiving apparatus for decoding and providing a broadcast signal of a pay program after judging whether or not contract information on the view of a pay program is available, and storing the contract information on the view of the pay program in a storage area. The first storage medium to be connected is connected via a recording medium interface, and at least a part of the contract information stored in the first storage medium is supplied to another pay broadcast receiving apparatus via a communication unit. Moving means for moving to a storage area of a second storage medium belonging to the same group as the first storage medium connected to the pay-broadcast receiving apparatus, and storing the second storage medium stored in the second storage medium moved by the moving means Decoding means for judging whether or not viewing of the pay program is possible based on the contract information, and decoding the broadcast signal of the pay program when this is possible. Transmitting and receiving device. 10. A pay broadcasting system for decoding and providing a broadcast signal of a pay program after judging whether or not contract information on viewing of a pay program is available, wherein a storage area for storing contract information on viewing of the pay program is provided. A first storage medium set as a master, a second storage medium belonging to the same group as the first storage medium and having a storage area, set as a slave to the first storage medium, Moving means for moving at least a part of the contract information stored in the first storage medium to a storage area of the second storage medium; and storing the contract information stored in the second storage medium moved by the moving means. A receiving device having decoding means for judging whether or not viewing of the pay program is possible based on the contract information and decoding the broadcast signal of the pay program when this is possible. Pay broadcasting system. 11. A pay broadcasting system in which a viewing fee is charged based on a viewing history of a pay program, a first storage medium having a storage area for storing viewing history information of a pay program, and the first storage medium. And a second storage medium belonging to the same group and having a storage area for storing viewing history information, and transferring the viewing history information to a storage area of the first recording medium when a broadcast signal of a pay program is received and reproduced. A receiving device having storage means for storing and a moving means for moving at least a part of the viewing history information stored in the first storage medium to a storage area of the second storage medium. And pay broadcasting system.