Receiving device, receiving method, transmitting device, and transmitting method
View Patent ↗The present technology relates to a receiving device, a receiving method, a transmitting device, and a transmitting method capable of handling various operation modes with high flexibility. Various operation modes in digital broadcasting using an IP transmission method can be handled with high flexibility by use of a service package unit which processes one or a plurality of components constituting a particular service of a plurality of services included in a broadcasting wave of the digital broadcasting using an IP transmission method, and a control signal transmitted by FLUTE session or UDP, in such a manner that the component or components and the first control signal are processed in units of service based on an IP address contained in each packet. The present technology is applicable to a television receiver, for example.
1. A receiving device, comprising:
a receiver configured to receive a broadcast stream, the broadcast stream including a plurality of services, each of the plurality of services including one or a plurality of components and a first control signal transmitted by a File Delivery over Unidirectional Transport (FLUTE) session; and
processing circuitry configured to process the one or the plurality of components constituting a particular service of the plurality of services included in the broadcast stream, and process a first control signal transmitted by the FLUTE session according to an Internet Protocol (IP) address, wherein
each of the plurality of services is associated with a different IP address that is contained in packets of the one or the plurality of components and the first control signal of the respective service, and in an IP layer that is immediately above a physical layer in a protocol stack.
2. The receiving device according to claim 1 , wherein
the broadcast stream is broadcast according to an IP transmission method, and
the first control signal is used in a first layer that is higher than the IP layer of the protocol stack of the IP transmission and at least contains information about the one or the plurality of components constituting the particular service.
3. The receiving device according to claim 2 , wherein
the broadcast stream includes a second control signal used in a second layer that is lower than the IP layer, and
the second control signal at least contains an ID for identifying a network, an ID for identifying a transport stream, and an ID for identifying a service.
4. The receiving device according to claim 3 , wherein the first control signal of the particular service transmitted by the FLUTE session is designated based on Uniform Resource Locator (URL) information contained in an electronic service guide in the broadcast stream for designating the first control signal of the particular service.
5. The receiving device according to claim 3 , wherein the second control signal contains information indicating whether the particular service is on the air.
6. The receiving device according to claim 3 , wherein the first control signal of the particular service and the second control signal are contained in a Service Guide Delivery Unit (SGDU) container and transmitted.
7. A receiving method for a receiving device, the receiving method comprising:
receiving a broadcast stream, the broadcast stream including a plurality of services, each of the plurality of services including one or a plurality of components and a first control signal transmitted by a File Delivery over Unidirectional Transport (FLUTE) session; and
processing the one or the plurality of components constituting a particular service of the plurality of services included in the broadcast stream, and processing a first control signal transmitted by the FLUTE session according to an Internet Protocol (IP) address, wherein
each of the plurality of services is associated with a different IP address that is contained in packets of the one or the plurality of components and the first control signal of the respective service, and in an IP layer that is immediately above a physical layer in a protocol stack.
8. The receiving method according to claim 7 , wherein
the broadcast stream is broadcast according to an IP transmission method, and
the first control signal is used in a first layer that is higher than the IP layer of the protocol stack of the IP transmission method, and at least contains information about the one or the plurality of components constituting the particular service.
9. The receiving method according to claim 8 , wherein
the broadcast stream includes a second control signal used in a second layer that is lower than the IP layer, and
the second control signal at least contains an ID for identifying a network, an ID for identifying a transport stream, and an ID for identifying a service.
10. The receiving method according to claim 9 , wherein the first control signal of the particular service transmitted by the FLUTE session is designated based on Uniform Resource Locator (URL) information contained in an electronic service guide in the broadcast stream for designating the first control signal of the particular service.
11. The receiving method according to claim 9 , wherein the second control signal contains information indicating whether the particular service is on the air.
12. The receiving method according to claim 9 , wherein the first control signal of the particular service and the second control signal are contained in a Service Guide Delivery Unit (SGDU) container and transmitted.
13. A transmitting device, comprising:
processing circuitry configured to
acquire one or a plurality of components for each of a plurality of services;
acquire a control signal for each of the plurality of services; and
transmission circuitry configured to transmit a broadcast stream including the plurality of services, wherein
each of the plurality of services is associated with a different IP address that is contained in packets of the one or the plurality of components and the control signal transmitted by File Delivery over Unidirectional Transport (FLUTE) session of the respective service, and in an IP layer that is immediately above a physical layer in a protocol stack.
14. A transmitting method for a transmitting device, the transmitting method comprising:
acquiring one or a plurality of components for each of a plurality of services;
acquiring a control signal for each of the plurality of services; and
transmitting a broadcast stream including the plurality of services, wherein
each of the plurality of services is associated with a different IP address that is contained in packets of the one or the plurality of components and the control signal transmitted by File Delivery over Unidirectional Transport (FLUTE) session of the respective service, and in an IP layer that is immediately above a physical layer in a protocol stack.