Broadcast receiver, broadcast data transmitting method and broadcast data receiving method
First Claim
Patent Images
1. A method of receiving broadcast data, comprising the steps of:
- receiving a service discovery information packet including first information on a service and extracting the first information included in the service discovery information packet, the service discovery information packet further including second information on a preview for the service;
storing the first information extracted from the service discovery information packet and making a channel map using the stored first information; and
receiving a first stream including the service and preview using the channel map,wherein the first information includes first element providing a first IP (internet Protocol) multicast address at which the service is accessed, and second element indicating whether a streaming of the service from the multicast address uses a RTP (Real Time Protocol) or a direct UDP (User Datagram Protocol),wherein the second information further includes at least one of third element indicating preferred preview among multiple previews for the service, the multiple previews being included in the first stream, fourth element specifying DVB triplet information of the preview, fifth element indicating a first IP multicast address for the preview, and sixth element indicating maximum bitrate for data of the preview.
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Abstract
A broadcast receiver, broadcast data transmitting method and broadcast data receiving method are disclosed, by which information on a service provided by a service provider can be provided, by which a preview can be provided, and by which a time taken for a channel switching can be reduced. The present invention includes transmitting service provider discovery information including information on a service provider, transmitting service discovery information including information on a service provided to the service provider, and transmitting a stream for the service to a connected receiver.
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Citations
13 Claims
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1. A method of receiving broadcast data, comprising the steps of:
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receiving a service discovery information packet including first information on a service and extracting the first information included in the service discovery information packet, the service discovery information packet further including second information on a preview for the service; storing the first information extracted from the service discovery information packet and making a channel map using the stored first information; and receiving a first stream including the service and preview using the channel map, wherein the first information includes first element providing a first IP (internet Protocol) multicast address at which the service is accessed, and second element indicating whether a streaming of the service from the multicast address uses a RTP (Real Time Protocol) or a direct UDP (User Datagram Protocol), wherein the second information further includes at least one of third element indicating preferred preview among multiple previews for the service, the multiple previews being included in the first stream, fourth element specifying DVB triplet information of the preview, fifth element indicating a first IP multicast address for the preview, and sixth element indicating maximum bitrate for data of the preview. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A broadcast receiver comprising:
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a service discovery manager receiving a service discovery information packet including first information on a service and extracting the first information included in the service discovery information packet, the service discovery information packet further including second information on a preview for the service; a service information database unit storing the first information extracted from the service discovery information packet; a channel manager making a channel map using the stored first information, and managing the channel map; and an application/UI manager receiving a first stream including the service and preview using the channel map, wherein the first information includes first element providing a first IP (internet Protocol) multicast address at which the service is accessed, and second element indicating whether a streaming of the service from the multicast address uses a RTP (Real Time Protocol) or a direct UDP (User Datagram Protocol), wherein the second information further includes at least one of third element indicating preferred preview among multiple previews for the service, the multiple previews being included in the first stream, fourth element specifying DVB triplet information of the preview, fifth element indicating a first IP multicast address for the preview, and sixth element indicating maximum bitrate for data of the preview. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification