Reception device, reception method, transmission device, and transmission method
View Patent ↗The present technique relates to a reception device, a reception method, a transmission device, and a transmission method, capable of flexibly supporting various operation modes. A service package unit processes, on a per-service basis, using an IP address included in each of packets, a particular service and a shared service related to the particular service, among a plurality of services transmitted via a broadcast wave of digital broadcasting using an IP transmission scheme. Accordingly, it is possible to flexibly support various operation modes in the digital broadcasting using the IP transmission scheme. It would be possible, for example, to apply the present technique to a television receiver.
1. A reception device comprising:
a receiver that receives digital broadcasting using an internet protocol (IP) transmission scheme; and
a processor that processes on a per-service basis, a particular service and a shared service related to the particular service, among a plurality of services transmitted on the digital broadcasting, by using a first 1 P address included in each packet of the particular service and a second IP address different from the first IP address included in each packet of the shared service,
wherein the particular service includes one or more components and a first control signal, packets of the one or more components and packets of the first control signal include the first IP address, and the first control signal includes information of the one or more components of the particular service and of one or more components of the shared service.
2. The reception device according to claim 1 ,
wherein the particular service includes one or more specific components and the first control signal, and
the shared service includes one or more shared components and the first control signal.
3. The reception device according to claim 2 ,
wherein the processor uses an IP address contained in each of the packets, and packages constituents of the particular service and constituents of the shared service.
4. The reception device according to claim 3 ,
wherein a packet time information used in common by plurality of services has a particular IP address, and
the processor uses the IP address contained in each of the packets and includes the time information in each package.
5. The reception device according to claim 3 ,
wherein a packet of an electronic service guide has a particular IP address, and
the processor uses the IP address contained in each of the packets and includes the electronic service guide in each package.
6. The reception device according to claim 1 ,
wherein the first control signal is transmitted at a first layer that is a layer higher than an IP layer, among protocol layers in the IP transmission scheme.
7. The reception device according to claim 6 ,
wherein the digital broadcasting transmits a second control signal at a second layer that is a layer lower than the IP layer, and
the second control signal at least includes an ID to identify a network, an ID to identify a stream, and an ID to identify a service.
8. The reception device according to claim 7 ,
wherein the second control signal includes information to identify the shared service.
9. The reception device according to claim 8 ,
wherein the first control signal includes information to identify the shared service.
10. The reception device according to claim 7 ,
wherein the second control signal includes information indicating whether the particular service and the shared service are on the air.
11. The reception device according to claim 7 ,
wherein the first control signal and the second control signal are received in a service guide delivery unit (SGDU) container.
12. A reception method implemented by a reception device, the reception method comprising:
receiving, by the reception device, digital broadcasting that uses an IP transmission scheme, and
processing, by the reception device, on a per-service basis, a particular service and a shared service related to the particular service, among a plurality of services transmitted by the digital broadcasting, by using a first IP address included in each packet of the particular service and a second IP address different from the first IP address included in each packet of the shared service,
wherein the particular service includes one or more components and a first control signal, packets of the one or more components and packets of the first control signal include the first IP address, and the first control signal includes information of the one or more components of the particular service and of one or more components of the shared service.
13. The reception method according to claim 12 , further comprising:
packaging constituents of the particular service and constituents of the shared service using the first and second IP addresses into a package.
14. The reception method according to claim 13 , further comprising:
including an electronic service guide in the package, wherein a packet of the electronic service guide has a particular IP address.
15. The reception method according to claim 12 , further comprising:
receiving the first control signal in the digital broadcasting at a first layer that is a layer higher than an IP layer, among protocol layers in the IP transmission scheme.
16. The reception method according to claim 15 , further comprising:
receiving a second control signal in the digital broadcasting at a second layer that is a layer lower than the IP layer, the second control signal at least including an identifier to identify a network, an identifier to identify a stream, and an identifier to identify a service.
17. The reception method according to claim 12 , wherein the first control signal includes information to identify the shared service.
18. A transmission device including a transmitter that transmits a particular service and a shared service related to the particular service on digital broadcasting using an IP transmission scheme,
wherein each packet of the particular service has a first IP address and each packet of the shared service has a second IP address different from the first IP address, on a per-service basis, and
the particular service includes one or more components and a first control signal, packets of the one or more components and packets of the first control signal include the first IP address, and the first control signal includes information of the one or more components of the particular service and of one or more components of the shared service.
19. The transmission device according to claim 18 , further comprising:
a processor that obtains one or more components; and
a control signal that at least includes information regarding the one or more components,
wherein a packet of the one or more components that form the particular service or the shared service and a packet of the control signal have a same IP address on a per-service basis.
20. A transmission method implemented by a transmission device, the transmission method comprising:
transmitting, by the transmission device, digital broadcasting using an IP transmission scheme such that each packet of a particular service has a first IP address and each packet of a shared service related to the particular service has a second IP address different from the first IP address on a per-service basis,
wherein the particular service includes one or more components and a first control signal, packets of the one or more components and packets of the first control signal include the first IP address, and the first control signal includes information of the one or more components of the particular service and of one or more components of the shared service.