Broadcasting signal transmitting apparatus, broadcasting signal receiving apparatus, broadcasting signal transmitting method, and broadcasting signal receiving method

• US 10,362,371 B2
• Filed: 05/25/2016
• Issued: 07/23/2019
• Est. Priority Date: 05/26/2015
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yang, Seungryul, Moon, Kyoungsoo, Ko, Woosuk, Hong, Sungryong
• Primary Examiner(s): Pierorazio, Michael B.
• Application Number:
  US15/576,575
• Publication Number:
  US 20180152768A1
• Time in Patent Office: 1,154 Days
• Field of Search: 725112
• CPC Class Codes: H04H 20/42 Arrangements for resource management
• CPC Class Codes: H04H 20/59 for emergency or urgency
• CPC Class Codes: H04H 20/93 which locates resources of other pieces of information, e.g. URL [Uniform Resource Locator]
• CPC Class Codes: H04H 60/40 for identifying broadcast time
• CPC Class Codes: H04H 60/72 using electronic programme guides [EPG] focusing on identifying broadcast space time H04H60/39 ; menu type display of EPG in television receivers H04N21/47
• CPC Class Codes: H04H 60/73 using meta-information
• CPC Class Codes: H04H 60/80 characterised by transmission among terminal devices
• CPC Class Codes: H04N 21/233 Processing of audio elementary streams monitoring, identification or recognition of audio in broadcast systems H04H60/58
• CPC Class Codes: H04N 21/234 Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
• CPC Class Codes: H04N 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/2387 Stream processing in response to a playback request from an end-user, e.g. for trick-play
• CPC Class Codes: H04N 21/2393 involving handling client requests scheduling or organising the servicing of application requests H04L67/60
• CPC Class Codes: H04N 21/258 Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data arrangements for services using the result on the distributing side of broadcast systems H04H60/66; profiles in network data switching protocols H04L67/30
• CPC Class Codes: H04N 21/41265 having a remote control device for bidirectional communication between the remote control device and client device unidirectional remote control device H04N21/42204
• CPC Class Codes: H04N 21/439 Processing of audio elementary streams
• CPC Class Codes: H04N 21/44 Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
• CPC Class Codes: H04N 21/47217 for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks specific graphical features in visual interfaces H04N21/4312
• CPC Class Codes: H04N 21/64322 IP
• CPC Class Codes: H04N 21/8586 by using a URL processing chained hypermedia data for information retrieval G06F16/94; information retrieval from the Internet by using URLs G06F16/955; URL in broadcast information H04H20/93; Web-based protocols H04L67/02

Abstract

The present invention proposes a method for transmitting a broadcasting signal. The method for transmitting a broadcasting signal according to the present invention proposes a system capable of supporting a next generation broadcasting service in an environment which supports next generation hybrid broadcasting that uses a terrestrial broadcasting network and an Internet network. Also, the present invention proposes an effective signaling scheme that can cover both the terrestrial broadcasting network and the Internet network in the environment that supports the next hybrid broadcasting.

Claims

1. A method for providing a broadcast service in a Primary Device (PD), the method comprising:

performing a discovery process with a Companion Device (CD) application resided in a CD,

wherein the performing the discovery process includes receiving an application information request from the CD application, and sending an application information response, and

wherein the application information response includes a first location information used for an endpoint of a websocket server resided in the PD;

establishing a websocket connection between the CD application and the websocket server based on the first location information; and

communicating at least one message with the CD application via the websocket connection,

wherein the at least one message includes a notification message for websocket,

wherein the notification message for websocket includes media playback state information,

wherein the at least one message further includes a subscription message for websocket, and

wherein the subscription message for websocket includes message type information, further the subscription message for websocket contains different types of message fields depending on the message type information.

2. The method according to claim 1,

wherein the subscription message for websocket is bidirectionally delivered between the PD and the CD application.

3. The method according to claim 2, wherein the subscription message for websocket includes servicename information identifying a service.

4. The method according to claim 3, wherein the servicename information indicates the service being for one of Electronic Service Guide (ESG), media playback state, and media time line.

5. The method according to claim 1, wherein the media playback state information includes a media identifier identifying a media, media state information indicating a current playback state of the media, and speed information indicating a current speed of the media relative to a normal speed.

6. The method according to claim 5, wherein the media playback state information indicates one of states including playing, paused, stopped, and buffering.

7. The method according to claim 5, wherein the speed information indicates a forward playback when a value of the speed information is positive, and the speed information indicates a backward playback when the value of the speed information is negative.

8. The method according to claim 1, wherein the performing the discovery process further includes receiving a device description request from the CD application, and sending a device description response, and

wherein the device description response includes a first Uniform Resource Locator (URL) for the application information request.

9. The method according to claim 8, wherein the performing the discovery process further includes receiving a device discovery request from the CD application, and sending a device discovery response, and

wherein the device discovery response includes a second Uniform Resource Locator (URL) for the device description request.

10. The method according to claim 9, wherein the device discovery request is performed by M-SEARCH using Simple Service Discovery Protocol (SSDP) with Search Target (ST) information that has a value matched with Search Target (ST) information of the PD.

11. A broadcast signal reception apparatus as a Primary Device (PD), the broadcast signal reception apparatus comprising:

a companion module configured to perform a discovery process with a Companion Device (CD) application resided in CD,

wherein the companion module is further configured to receive an application information request from the CD application, and send an application information response,

wherein the application information response includes a first location information used for an endpoint of a websocket server resided in the PD, and

wherein the companion module is further configured to establish a websocket connection between the CD application and the websocket server based on the first location information; and

a websocket server configured to communicate at least one message with the CD application via the websocket connection,

wherein the at least one message includes a notification message for websocket,

wherein the notification message for websocket includes media playback state information,

wherein the at least one message further includes a subscription message for websocket, and

wherein the subscription message for websocket includes message type information, further the subscription message for websocket contains different types of message fields depending on the message type information.

12. The broadcast signal reception apparatus according to claim 11,

wherein the subscription message, for websocket is bidirectionally delivered between the PD and the CD application.

13. The broadcast signal reception apparatus according to claim 12, wherein the subscription message for websocket includes servicename information identifying a service.

14. The broadcast signal reception apparatus according to claim 13, wherein the servicename information indicates the service being for one of Electronic Service Guide (ESG), media playback state, and media time line.

15. The broadcast signal reception apparatus according to claim 11, wherein the media playback state information includes a media identifier identifying a media, media state information indicating a current playback state of the media, and speed information indicating a current speed of the media relative to a normal speed.

16. The broadcast signal reception apparatus according to claim 15, wherein the media playback state information indicates one of states including playing, paused, stopped, and buffering.

17. The broadcast signal reception apparatus according to claim 15, wherein the speed information indicates a forward playback when a value of the speed information is positive, and the speed information indicates a backward playback when the value of the speed information is negative.

18. The broadcast signal reception apparatus according to claim 11, wherein the companion module is further configured to receive a device description request from the CD application, and send a device description response, and

wherein the device description response includes a first Uniform Resource Locator (URL) for the application information request.

19. The broadcast signal reception apparatus according to claim 18, wherein the companion module is further configured to receive a device discovery request from the CD application, and send a device discovery response, and

wherein the device discovery response includes a second Uniform Resource Locator (URL) for the device description request.

20. The broadcast signal reception apparatus according to claim 19, wherein the device discovery request is performed by M-SEARCH using Simple Service Discovery Protocol (SSDP) with Search Target (ST) information that has a value matched with Search Target (ST) information of the PD.