Transmitting method, receiving method, transmitting apparatus, and receiving apparatus

A receiving method comprising:

• receiving contents transmitted by using a multiplexing format of an MPEG Media Transport (MMT) through a broadcast wave or using a multiplexing format of MPEG Dynamic Adaptive Streaming over HTTP (MPEG-DASH) through a communication path;
• and
• synchronizing a content transmitted by using the broadcast wave with a content transmitted by using the communication path and reproducing the received contents, when an enhanced application information table that includes information indicating that the contents to be transmitted using the communication path are present, content information, and information indicating an ability of a receiving apparatus for reproducing the contents is received by using at least the broadcast wave in the broadcast wave and the communication path, the content information being information for synchronizing the content transmitted by using the broadcast wave and the content transmitted by using the communication path and being related to the content transmitted by using the communication path,
• wherein the enhanced application information table includes:
• attribute information which includes information indicating a broadcast content and a communication content to be reproduced synchronously with each other, and information indicating a correlation between the broadcast content and the communication content;
• and differential information between a reference clock of the content transmitted by using the broadcast wave and a reference clock of the content transmitted by using the communication path, and
• wherein the broadcast content and the communication content to be reproduced synchronously with each other are identical content data.

A transmitting apparatus for transmitting contents using a multiplexing format of an MPEG Media Transport (MMT) through a broadcast wave or using a multiplexing format of MPEG Dynamic Adaptive Streaming over HTTP (MPEG-DASH) through a communication path, the transmitting apparatus comprising:

• an information generator that generates an enhanced application information table by including information indicating that the contents to be transmitted using the communication path are present, content information, and information indicating an ability of a receiving apparatus for reproducing the contents in the enhanced application information table when transmitting the contents using both the broadcast wave and the communication path, the content information being information for synchronizing a content transmitted by using the broadcast wave with a content transmitted by using the communication path at a reception side that receives the contents and being related to the content transmitted by using the communication path;
• and
• an information transmitter that transmits the enhanced application information table by using at least the broadcast wave in the broadcast wave and the communication path, wherein the enhanced application information table includes:
• attribute information which includes information indicating a broadcast content and a communication content to be reproduced synchronously with each other, and information indicating a correlation between the broadcast content and the communication content;
• and differential information between a reference clock of the content transmitted by using the broadcast wave and a reference clock of the content transmitted by using the communication path,
• wherein the broadcast content and the communication content to be reproduced synchronously with each other are identical content data.

A receiving apparatus comprising:

• a receiver that receives contents transmitted by using a multiplexing format of an MPEG Media Transport (MMT) through a broadcast wave or using a multiplexing format of MPEG Dynamic Adaptive Streaming over HTTP (MPEG-DASH) through a communication path;
• and
• a reproducer that synchronizes a content transmitted by using the broadcast wave with a content transmitted by using the communication path and reproduces the received contents, when an enhanced application information table that includes information indicating that the contents to be transmitted using the communication path are present, content information, and information indicating an ability of a receiving apparatus for reproducing the contents is received by using at least the broadcast wave in the broadcast wave and the communication path, the content information being information for synchronizing the content transmitted by using the broadcast wave and the content transmitted by using the communication path and being related to the content transmitted by using the communication path,
• wherein the enhanced application information table includes:
• attribute information which includes information indicating a broadcast content and a communication content to be reproduced synchronously with each other, and information indicating a correlation between the broadcast content and the communication content;
• and differential information between a reference clock of the content transmitted by using the broadcast wave and a reference clock of the content transmitted by using the communication path, and
• wherein the broadcast content and the communication content to be reproduced synchronously with each other are identical content data.