Reception apparatus, reception method, transmission apparatus, and transmission method

1. A reception apparatus comprising:

circuitry configured to

receive broadcast content provided as a pay broadcast service, the broadcast content being transmitted in a scrambled manner;

acquire a subscription check application for checking presence of a subscription to the pay broadcast service depending on information indicating presence of the subscription check application, the information being included in control information including information regarding a structure of the broadcast content;

control an operation of the subscription check application;

acquire a promotion application in response to a determination that the subscription to the pay broadcast service is not present; and

acquire a conjunction application in response to a determination that the subscription to the pay broadcast service is present;

wherein the subscription check application is transmitted in a non-scrambled manner, the promotion application is transmitted in a non-scrambled manner, and the conjunction application is transmitted in a scrambled manner.

2. The reception apparatus according to claim 1 , wherein

the circuitry is further configured to cause a transition from the subscription check application to one of the promotion application and the conjunction application to control an operation of one of the promotion application and the conjunction application.

3. The reception apparatus according to claim 2 , wherein the circuitry is further configured to

executes execute the conjunction application in conjunction with the broadcast content when a non-subscribing user subscribes to the pay broadcast service via the promotion application.

4. The reception apparatus according to claim 1 , wherein

the subscription check application, the promotion application, and the conjunction application are transmitted as data, and

the control information includes application control information for controlling the subscription check application and data transmission information including information regarding data transmission.

5. The reception apparatus according to claim 4 , wherein

a single service is provided as the pay broadcast service, and

the broadcast content, the control information, the application control information, the data transmission information, the subscription check application, the promotion application, and the conjunction application are transmitted as streams of the pay broadcast service.

6. The reception apparatus according to claim 4 , wherein

a plurality of services are provided as the pay broadcast service,

the broadcast content, the control information, and the conjunction application are transmitted as streams of the pay broadcast service, and

the application control information, the data transmission information, the subscription check application, and the promotion application are transmitted as streams common to other pay broadcast services.

7. The reception apparatus according to claim 1 , wherein in the subscription check application, a function of checking the presence of the subscription to the pay broadcast service is provided by an application programming interface (API).

8. The reception apparatus according to claim 1 , wherein

an MPEG media transport (MMT) scheme is employed as a media transport scheme, and

the information indicating the presence of the subscription check application is an application initiative flag described in an access control descriptor placed in an MMT package table (MPT).

9. A reception method of a reception apparatus, the reception method comprising:

receiving broadcast content provided as a pay broadcast service, the broadcast content being transmitted in a scrambled manner;

acquiring a subscription check application for checking presence of a subscription to the pay broadcast service depending on information indicating presence of the subscription check application, the information being included in control information including information regarding a structure of the broadcast content;

controlling an operation of the subscription check application;

acquiring a promotion application in response to a determination that the subscription to the pay broadcast service is not present; and

acquiring a conjunction application in response to a determination that the subscription to the pay broadcast service is present;

wherein the subscription check application is transmitted in a non-scrambled manner, the promotion application is transmitted in a non-scrambled manner, and the conjunction application is transmitted in a scrambled manner.

10. A transmission apparatus comprising circuitry configured to:

generate control information including information regarding a structure of broadcast content to be provided as a pay broadcast service, the control information including information indicating presence of a subscription check application for checking presence of a subscription to the pay broadcast service; and

transmission circuitry configured to

transmit the control information in a non-scrambled manner and the broadcast content in a scrambled manner,

transmit the subscription check application,

transmit a promotion application to be acquired by a reception apparatus based on a determination that the subscription to the pay broadcast service is not present, and

transmit a conjunction application to be acquired by the reception apparatus based on a determination that the subscription to the pay broadcast service is present;

wherein the subscription check application is transmitted in a non-scrambled manner, the promotion application is transmitted in a non-scrambled manner, and the conjunction application is transmitted in a scrambled manner.

11. The transmission apparatus according to claim 10 , wherein the promotion application introduces the broadcast content, and the conjunction application is executed in conjunction with the descrambled broadcast content.

12. The transmission apparatus according to claim 10 , wherein

the subscription check application, the promotion application, and the conjunction application are transmitted as data, and

the control information includes application control information for controlling the subscription check application and data transmission information including information regarding data transmission.

13. The transmission apparatus according to claim 12 , wherein

a single service is provided as the pay broadcast service, and

the broadcast content, the control information, the application control information, the data transmission information, the subscription check application, the promotion application, and the conjunction application are transmitted as streams of the pay broadcast service.

14. The transmission apparatus according to claim 12 , wherein

a plurality of services are provided as the pay broadcast service,

the broadcast content, the control information, and the conjunction application are transmitted as streams of the pay broadcast service, and

the application control information, the data transmission information, the subscription check application, and the promotion application are transmitted as streams common to other pay broadcast services.

15. The transmission apparatus according to claim 10 , wherein

an MMT scheme is employed as a media transport scheme, and

the information indicating the presence of the subscription check application is an application initiative flag described in an access control descriptor placed in an MPT.

16. A transmission method of a transmission apparatus, the transmission method comprising:

generating, using circuitry, control information including information regarding a structure of broadcast content to be provided as a pay broadcast service, the control information including information indicating presence of a subscription check application for checking presence of a subscription to the pay broadcast service;

transmitting the control information in a non-scrambled manner together with the broadcast content in a scrambled manner;

transmitting the subscription check application;

transmitting a promotion application to be acquired by a reception apparatus based on a determination that the subscription to the pay broadcast service is not present; and

transmitting a conjunction application to be acquired by the reception apparatus based on a determination that the subscription to the pay broadcast service is present;

wherein the subscription check application is transmitted in a non-scrambled manner, the promotion application is transmitted in a non-scrambled manner, and the conjunction application is transmitted in a scrambled manner.