Method of transmitting and receiving broadcast signal and apparatus for receiving broadcast signal

Patent metadata

Field	Value
Publication number	US-9456167-B2
Application number	US-59190109-A
Country	US
Kind code	B2
Filing date	Dec 3, 2009
Priority date	Jul 12, 2007
Publication date	Sep 27, 2016
Grant date	Sep 27, 2016

Abstract

Disclosed are a method of transmitting and receiving a broadcast signal and an apparatus for receiving the broadcast signal. In the present invention, first program table information describing a broadcasting stream, and second program table information including additional service identifier information of the multiplexed stream and third program table information describing the additional service data for the multiplexed stream are obtained. The additional service can be provided with the additional service data by using the third program table information.

First claim

What is claimed is:

1. A method of receiving a non real time service in a digital broadcast receiver via a terrestrial broadcast network, the method comprising:
receiving, by a tuner, a broadcast signal including a main channel and an additional channel from the terrestrial broadcast network, wherein a main broadcast service is carried in real time in the main channel and a non-real time service is carried in non-real time in the additional channel;
decoding, a first information received in real time from the broadcast signal via the terrestrial broadcast network, wherein the first information announces the sub-broadcast channel associated with a service type identifier to signify the non real time service;
decoding, a second information received in real time from the broadcast signal via the terrestrial broadcast network,
wherein the second information identifies a stream type for data sections for delivering the non-real time service and includes a packet identifier for identifying MPEG-2 TS packets carrying the data sections for delivering the non-real time service,
wherein the second information includes a descriptor containing an identifier of the non-real time service carried in the MPEG-2 TS packets with the same packet identifier and the data sections are referenced by the packet identifier;
decoding, a third information that is accessed within the additional channel based on the second information included in the main channel,
wherein the third information includes signaling data for the non-real time service, the signaling data being separate from the first information and the second information, the signaling data describing content items available for download to storage in the digital broadcast receiver and wherein the non-real time service is associated with one or more content items, each of which consists of one or more files, the files include a collection of audio or video clips;
wherein the signaling data includes information on time during which the content items are to be made available for download and information for identifying content items, and
wherein the signaling data further includes security information indicating that content protection is applied to at least one file that constitutes the non-real time service,
wherein the third information includes subscription period information specifying a subscription period for the content items when the content items are purchased, length information specifying a duration of playback of the content item, and location information specifying a location of the content item when the content item is available to be retrieved via an internet;
receiving and storing, from the broadcast signal via the terrestrial broadcast network, non-real time service data based on the third information;
decoding the stored non-real time service data; and
providing the decoded non-real time service.

2. The method of claim 1 , wherein the third information includes location information of the non real time service.

3. The method of claim 1 , wherein when the non real time service is received from the sub-broadcast channel, the non real time service is transmitted using DSM-CC section.

4. The method of claim 1 , further comprising:
providing information indicating whether or not the non real time service exists.

5. The method of claim 4 , wherein when the non real time service is received, an icon for the non real time service is provided on a screen.

6. The method of claim 4 , wherein the non real time service is associated with a current program in the main broadcast channel.

7. The method of claim 1 , wherein the third information includes identification information whether the non real time service is visible to a user.

8. The method of claim 1 , wherein the third information includes information about the storage capability.

9. A digital broadcast receiver for receiving a non real time service via a terrestrial broadcast network, the digital broadcast receiver comprising:
a tuner configured to
receive a broadcast signal including a main channel and an additional channel from the terrestrial broadcast network, wherein a main broadcast service is carried in real time in the main channel and a non-real time service is carried in non-real time in the additional channel;
receive, a first information received in real time from the broadcast signal via the terrestrial broadcast network, wherein the first information announces a channel associated with a service type identifier to signify the non real time service,
receive, a second information received in real time from the broadcast signal via the terrestrial broadcast network, wherein the second information identifies a stream type for data sections for delivering the non-real time service and includes a packet identifier for identifying MPEG-2 TS packets carrying the data sections for delivering the non-real time service and, wherein the second information includes a descriptor containing an identifier of the non-real time service carried in the MPEG-2 TS packets with the same packet identifier and the data sections are referenced by the packet identifier, and
receive, a third information is accessed within the additional channel based on the second information included in the main channel, wherein the third information includes signaling data for the non-real time service, the signaling data being separate from the first information and the second information, wherein the signaling data describes content items available for download to storage in the digital broadcast receiver and wherein the non-real time service is associated with one or more content items, each of which consists of one or more files, the files include a collection of audio or video clips,
wherein the signaling data includes information on time during which the content items are to be made available for download and information for identifying content items, and
wherein the signaling data further includes security information indicating that content protection is applied to at least one file that constitutes the non-real time service,
wherein the third information includes subscription period information specifying a subscription period for the content items when the content items are purchased, length information specifying a duration of playback of the content item, and location information specifying a location of the content item when the content item is available to be retrieved via an internet;
receive, from the broadcast signal via the terrestrial broadcast network, non-real time service data based on the third information;
a first decoder configured to decode the first information, the second information, and the third information;
a storage configured to store the non-real time service data based on the third information; and
a second decoder configured to decode the stored non-real time service data.

10. The digital broadcast receiver of claim 9 , wherein the third information includes location information of the non real time service.

11. The digital broadcast receiver of claim 9 , the digital broadcast receiver further comprising:
a service manager for providing information indicating whether or not the non real time service exists.

12. The digital broadcast receiver of claim 11 , wherein when the non real time service is received, the service manager control to display an icon for the non real time service on a screen.

13. The digital broadcast receiver of claim 9 , wherein the non real time service is associated with a current program in the main channel.

14. The digital broadcast receiver of claim 9 , wherein the third informatio

Assignees

• Hong Ho Taek
• Suh Jong Yeul
• Lee Joon Hui
• Song Jae Hyung
• Kim Jin Pil
• Lg Electronics Inc

Inventors

• Hong Ho Taek
• Suh Jong Yeul
• Lee Joon Hui
• Song Jae Hyung
• Kim Jin Pil

Classifications

• H04N21/482

  End-user interface for programme selection · CPC title

• H04H60/72

  using electronic programme guides [EPG] (focusing on identifying broadcast space time H04H60/39 {; menu type display of EPG in television receivers H04N21/47}) · CPC title

• H04N5/44543 Primary

  Electricity · mapped topic

• H04N21/4334

  Recording operations (recording of a television signal H04N5/76; arrangements for recording or accumulating broadcast information or broadcast-related information H04H60/27) · CPC title

• H04N21/4438

  Window management, e.g. event handling following interaction with the user interface · CPC title