TRANSMISSION APPARATUS, TRANSMISSION METHOD, RECEPTION APPARATUS, AND RECEPTION METHOD

• US 20160277774A1
• Filed: 09/04/2014
• Published: 09/22/2016
• Est. Priority Date: 10/30/2013
• Status: Active Grant

• Current Assignee: Saturn Licensing LLC (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: YAMAGISHI, YASUAKI, MORI, MASAHITO
• Granted Patent: US 9,998,771 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/2381 Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/23892 involving embedding information at multiplex stream level, e.g. embedding a watermark at packet level
• CPC Class Codes: H04N 21/4316 for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/482 End-user interface for program selection broadcast systems using EPGs H04H60/72
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73

Abstract

The present technology relates to a transmission apparatus, a transmission method, a reception apparatus, and a reception method which can easily obtain a mosaic screen.

Metadata of content is distributed, and the metadata is described using an attribute and an attribute value and includes signaling information indicating that a video is a thumbnail video suitable for constituting a mosaic screen, and the attribute indicating information to refer to a file including information to receive content supplied by a service. The present technology can be applied when, for example, content is to be distributed.

Claims

1. A transmission apparatus comprising:

a distribution unit configured to distribute metadata of content, the metadata being described using an attribute and an attribute value and including signaling information indicating that a video is a thumbnail video suitable for constituting a mosaic screen, and the attribute indicating information to refer to a file including information to receive content supplied by a service, wherein

the information to receive the content supplied by the service includes an IP address and a port number of multicast.

2. The transmission apparatus according to claim 1, wherein the file is a session description protocol (SDP) file.

3. The transmission apparatus according to claim 2, wherein the metadata further includes one or more pieces of:

information on a collection of one or more services;

information on an individual service;

a service identifier which is the attribute to identify a service; and

information on a method for distributing content supplied by a service.

4. The transmission apparatus according to claim 3, wherein the metadata is a user service description (USD) of a multimedia broadcast multicast service (MBMS) and includes:

a bundleDescription element which is the information on the one or more services;

a bundleDescription/UserServiceDescription element which is the information on the individual service;

a bundleDescription/userServiceDescription/@serviceId attribute which is the service identifier;

a bundleDescription/userServiceDescription/DeliveryMethod element which is the information on the method for distributing the content supplied by the service;

a bundleDescription/userServiceDescription/DeliveryMethod/@ sessionDescriptionURI attribute which is the attribute indicating the information to refer to the file including the information to receive the content supplied by the service; and

a bundleDescription/userServiceDescription/@r7;

serviceClass attribute which is the signaling information.

5. The transmission apparatus according to claim 4, wherein the USD further includes an r12:

appServiceDescription element indicating that the content supplied by the service is to be distributed by either distribution method of multicast or unicast.

6. The transmission apparatus according to claim 5, wherein

the r12:

appServiceDescription element includes either or both of a broadcast element or/and a unicast element,

the broadcast element and the unicast element each includes a baseURL attribute indicating a uniform resource locator (URL) of the content supplied by the service,

the broadcast element indicates that the content whose URL is indicated by the baseURL attribute included in the broadcast element is to be distributed by multicast, and

the unicast element indicates that the content whose URL is indicated by the baseURL attribute included in the unicast element is to be distributed by unicast.

7. The transmission apparatus according to claim 6, wherein the broadcast element includes, as the signaling information, a thumbnailVideo attribute indicating whether the content whose URL is indicated by the baseURL attribute included in the broadcast element is the thumbnail video.

8. The transmission apparatus according to claim 7, wherein the USD includes the /r12:

appServiceDescription element of each of a plurality of contents capable of constituting a mosaic screen.

9. The transmission apparatus according to claim 8, wherein the broadcast element includes a sessionDescription element indicating information to refer to a session description protocol (SDP) file including an IP address and a port number of multicast by which the content whose URL is indicated by the baseURL attribute included in the broadcast element is to be distributed.

10. The transmission apparatus according to claim 8, wherein the r12:

appServiceDescription element includes an mpdURI attribute indicating a uniform resource identifier (URI) of a media presentation description (MPD) of moving picture experts group-dynamic adaptive streaming over HTTP (MPEG-DASH) which is metadata to perform reproduction control of the content whose distribution method is indicated by the r12;

appServiceDescription element.

11. A transmission method comprising the step of:

distributing metadata of content, the metadata being described using an attribute and an attribute value and including signaling information indicating that a video is a thumbnail video suitable for constituting a mosaic screen, and the attribute indicating information to refer to a file including information to receive content supplied by a service, wherein

the information to receive the content supplied by the service includes an IP address and a port number of multicast.

12. A reception apparatus comprising:

a reception unit configured to receive metadata of content, the metadata being described using an attribute and an attribute value and including signaling information indicating that a video is a thumbnail video suitable for constituting a mosaic screen, and the attribute indicating information to refer to a file including information to receive content supplied by a service, wherein

the information to receive the content supplied by the service includes an IP address and a port number of multicast.

13. The reception apparatus according to claim 12, wherein the file is a session description protocol (SDP) file.

14. The reception apparatus according to claim 13, wherein the metadata further includes one or more pieces of:

information on a collection of one or more services;

information on an individual service;

a service identifier which is the attribute to identify a service; and

information on a method for distributing content supplied by a service.

15. The reception apparatus according to claim 14, wherein the metadata is a user service description (USD) of a multimedia broadcast multicast service (MBMS) and includes:

a bundleDescription element which is the information on the collection of the one or more services;

a bundleDescription/UserServiceDescription element which is the information on the individual service;

a bundleDescription/userServiceDescription/@serviceId attribute which is the service identifier;

a bundleDescription/userServiceDescription/DeliveryMethod element which is the information on the method for distributing the content supplied by the service;

a bundleDescription/userServiceDescription/DeliveryMethod/@ sessionDescriptionURI attribute which is the attribute indicating the information to refer to the file including the information to receive the content supplied by the service; and

a bundleDescription/userServiceDescription/@r7;

serviceClass attribute which is the signaling information.

16. The reception apparatus according to claim 15, wherein the USD further includes an r12:

appServiceDescription element indicating that the content supplied by the service is to be distributed by either distribution method of multicast or unicast.

17. The reception apparatus according to claim 16, wherein

the r12:

appServiceDescription element includes either or both of a broadcast element or/and a unicast element,

the broadcast element and the unicast element each includes a baseURL attribute indicating a uniform resource locator (URL) of the content supplied by the service,

the broadcast element indicates that the content whose URL is indicated by the baseURL attribute included in the broadcast element is to be distributed by multicast, and

the unicast element indicates that the content whose URL is indicated by the baseURL attribute included in the unicast element is to be distributed by unicast.

18. The reception apparatus according to claim 17, wherein the broadcast element includes thumbnailVideo attribute indicating whether content whose URL is indicated by the baseURL attribute included in the broadcast element is the thumbnail video as the signaling information.

19. The reception apparatus according to claim 18, wherein the USD includes the /r12:

appServiceDescription element of each of a plurality of contents capable of constituting a mosaic screen.

20. The reception apparatus according to claim 19, wherein the broadcast element includes a sessionDescription element indicating information to refer to a session description protocol (SDP) file including an IP address and a port number of multicast by which the content whose URL is indicated by the baseURL attribute included in the broadcast element is to be distributed.

21. The reception apparatus according to claim 19, wherein the r12:

appServiceDescription element includes an mpdURI attribute indicating a uniform resource identifier (URI) of a media presentation description (MPD) of moving picture experts group-dynamic adaptive streaming over HTTP (MPEG-DASH) which is metadata to perform reproduction control of the content whose distribution method is indicated by the r12;

appServiceDescription element.

22. A reception method comprising a step of:

receiving metadata of content, the metadata being metadata to be described using an attribute and an attribute value and including signaling information indicating that a video is a thumbnail video suitable for constituting a mosaic screen, and the attribute indicating information to refer to a file including information to receive content supplied by a service, wherein

the information to receive the content supplied by the service includes an IP address and a port number of multicast.

23. A transmission apparatus comprising:

a distribution unit configured to distribute metadata of content, the metadata being described using an attribute and an attribute value and including signaling information indicating that a video is a thumbnail video suitable for constituting a mosaic screen, and information to refer to a user service description (USD), wherein

the metadata further includes;

service information on a service; and

access information which refers to the service information to access a service.

24. The transmission apparatus according to claim 23, wherein the service information includes a service identifier which is the attribute to identify the service information.

25. The transmission apparatus according to claim 24, wherein

the access information includes the information to refer to the USD and further includes one or more pieces of;

an access information identifier which is the attribute to identify the access information;

version information which is the attribute indicating a version of description contents of the access information;

information indicating that a service is either of a broadcast type service or a bidirectional type service;

information indicating that a service is a broadcast type service;

information indicating a session description;

information indicating that a service is a bidirectional type service; and

information indicating a class of a service.

26. The transmission apparatus according to claim 25, wherein the metadata is an open mobile alliance-electronic service guide (OMA-ESG) and includes:

a Service element which is the service information;

a Service/@globalserviceId attribute which is the service identifier;

an Access element which is the access information;

an Access/@id attribute which is the access information identifier;

an Access/@version attribute which is the version information;

an Access/AccessType element which is information indicating whether the service is either of a broadcast type service or a bidirectional type service;

an Access/AccessType/BroadcastServiceDelivery element which is information indicating that the service is a broadcast type service;

an Access/AccessType/BroadcastServiceDelivery/SessionDescription element which is information indicating the session description;

an Access/AccessType/UnicastServiceDelivery element which is information indicating that the service is a bidirectional type service;

an Access/ServiceClass element which is information indicating a class of the service; and

an Access/AccessType/BroadcastServiceDelivery/SessionDescription/USBDRef element which is information to refer to the USD.

27. The transmission apparatus according to claim 26, wherein the OMA-ESG includes, as the signaling information, a Service/ServiceType element in which the information indicating that the content supplied by the service is the thumbnail video.

28. A transmission method comprising the step of:

distributing metadata of content, the metadata being metadata to be described using an attribute and an attribute value and including signaling information indicating that a video is a thumbnail video suitable for constituting a mosaic screen, and information to refer to a user service description (USD), wherein

the metadata further includes;

service information on a service; and

access information which refers to the service information to access a service.

29. A reception apparatus comprising:

a reception unit configured to receive metadata of content, the metadata being described using an attribute and an attribute value and including signaling information indicating that a video is a thumbnail video suitable for constituting a mosaic screen, and information to refer to a user service description (USD), wherein

the metadata further includes;

service information on a service; and

access information which refers to the service information to access a service.

30. The reception apparatus according to claim 29, wherein the service information includes a service identifier which is the attribute to identify the service information.

31. The reception apparatus according to claim 30, wherein

the access information includes the information to refer to the USD and further includes one or more pieces of;

access information identifier which is the attribute to identify the access information;

version information which is the attribute indicating a version of description contents of the access information;

information indicating that a service is either a broadcast type service or a bidirectional type service;

information indicating that a service is the broadcast type service;

information indicating a session description;

information indicating that a service is the bidirectional type service; and

information indicating a class of a service.

32. The reception apparatus according to claim 31, in which the metadata is an open mobile alliance-electronic service guide (OMA-ESG) and includes:

a Service element which is the service information;

a Service/@globalserviceId attribute which is the service identifier;

an Access element which is the access information;

an Access/@id attribute which is the access information identifier;

an Access/@version attribute which is the version information;

an Access/AccessType element which is information indicating whether the service is either of a broadcast type service or a bidirectional type service;

an Access/AccessType/BroadcastServiceDelivery element which is information indicating that the service is a broadcast type service;

an Access/AccessType/BroadcastServiceDelivery/SessionDescription element which is information indicating the session description;

an Access/AccessType/UnicastServiceDelivery element which is information indicating that the service is a bidirectional type service;

an Access/ServiceClass element which is information indicating a class of the service; and

an Access/AccessType/BroadcastServiceDelivery/SessionDescription/USBDRef element which is information to refer to the USD.

33. The reception apparatus according to claim 32, wherein the OMA-ESG includes, as the signaling information, a Service/ServiceType element in which the information indicating that the content supplied by the service is the thumbnail video.

34. A reception method comprising the step of:

receiving metadata of content, the metadata being described using an attribute and an attribute value and including signaling information indicating that a video is a thumbnail video suitable for constituting a mosaic screen, and information to refer to a user service description (USD), wherein

the metadata further includes;

service information on a service; and

access information which refers to the service information to access a service.