Broadcast reception device and operating method thereof, and companion device interoperating with the broadcast reception device and operating method thereof

• US 10,491,969 B2
• Filed: 03/09/2015
• Issued: 11/26/2019
• Est. Priority Date: 03/10/2014
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Jinwon, Song, Younghun
• Primary Examiner(s): Fogg, Cynthia M
• Application Number:
  US15/124,904
• Publication Number:
  US 20170105055A1
• Time in Patent Office: 1,723 Days
• Field of Search: 725109, 725 33, 725 35
• CPC Class Codes: H04N 21/234327 by decomposing into layers, e.g. base layer and one or more enhancement layers
• CPC Class Codes: H04N 21/4108 characterised by an identification number or address, e.g. local network address protecting specific internal or external computer components using identification number G06F21/73; network arrangements, protocols or services for addressing or naming H04L61/00
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/439 Processing of audio elementary streams
• CPC Class Codes: H04N 21/482 End-user interface for program selection broadcast systems using EPGs H04H60/72
• CPC Class Codes: H04N 21/4884 for displaying subtitles
• CPC Class Codes: H04N 21/814 comprising emergency warnings arrangements specially adapted for emergency or urgency in broadcast systems H04H20/59; arrangements for providing alarms, notifications, alerts to substation in data switching networks H04L12/1895
• 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

A companion device is provided for interoperating with a broadcast service that a broadcast reception device receives. The companion device comprises a communication unit and a control unit. The communication unit transmits a discovery request to the broadcast reception device, receives a discovery response from the broadcast reception device, transmits a description request to the broadcast reception device, and receives a description response from the broadcast reception device. The description response is used for connecting the companion device with the broadcast reception device. The control unit transmits a request for the broadcast service and receives a response from the broadcast reception device. The response includes device capability information signaling a capability of a device necessary for presenting a media component included in the broadcast service. The control unit receives the media component when a capability of the companion device satisfies the device capability that the device capability information includes.

Claims

1. A companion device for interoperating with a broadcast service that a television receives, the companion device comprising:

a transceiver that connects the companion device with the television; and

a controller that;

controls the transceiver to transmit an information request for the broadcast service to the television and receive a response from the television including capability information representing a capability for presenting a media component belonging to the broadcast service,

determines whether a capability of the companion device satisfies the capability represented by the capability information, and

in response to determining that the capability of the companion device does not satisfy the capability represented by the capability information, controls the transceiver to receive a user input on whether to present the media component, or controls the transceiver to transmit a request of a uniform resource locator (URL) for an alternative media component.

2. The companion device according to claim 1, wherein in response to determining that the user input is to present the media component, the controller further controls the transceiver to receive the media component and controls the screen to display the received second media component.

3. The companion device according to claim 1, wherein the alternative media component belongs to the broadcast service of which capability is different from the capability of the media component represented by the capability information and receives the URL for displaying the alternative media component based on the URL.

4. The companion device according to claim 1, wherein the capability information comprises at least one of information on a video that the media component includes, information on a codec of an audio that the media component includes, and information on a subtitle format that the media component includes.

5. The companion device according to claim 4, wherein the information on the video that the media component includes comprises at least one of a codec necessary for playback of the video, and a resolution of the video.

6. The companion device according to claim 1, wherein the controller receives an emergency alert message for alerting a disaster situation,

wherein the emergency alert message includes an identifier for identifying an emergency alert, first information representing a category of the emergency alert, second information representing a priority of the emergency alert and third information representing a region corresponding to the emergency alert, and

wherein the second information includes a plurality of ranks for determining priority of the emergency alert.

7. An operating method of a companion device interoperating with a broadcast service that a television receives, the method comprising:

connecting the companion device with the television;

transmitting an information request for the broadcast service to the television;

receiving a response from the television including capability information representing a capability for presenting a media component belonging to the broadcast service;

determining whether a capability of the companion device satisfies the capability represented by the capability information; and

in response to determining that the capability of the companion device does not satisfy the capability represented by the capability information, receiving a user input on whether to present the media component, or transmitting a request of a uniform resource locator (URL) for an alternative media component.

8. The method according to claim 7, further comprising:

in response to determining that the user input is to present the media component, receiving the media component and controlling the screen to display the received second media component.

9. The method according to claim 7, wherein the alternative media component belongs to the broadcast service of which capability is different from the capability of the media component represented by the capability information and receives the URL for displaying the alternative media component based on the URL.

10. The method according to claim 7, wherein the capability information comprises at least one of information on a video that the media component includes, information on a codec of an audio that the media component includes, and information on a subtitle format that the media component includes.

11. The method according to claim 10, wherein the information on the video that the media component includes comprises at least one of a codec necessary for playback of the video, and a resolution of the video.

12. The method according to claim 7, wherein the companion device receives an emergency alert message for alerting a disaster situation,

wherein the emergency alert message includes an identifier for identifying an emergency alert, first information representing a category of the emergency alert, second information representing a priority of the emergency alert and third information representing a region corresponding to the emergency alert, and

wherein the second information includes a plurality of ranks for determining priority of the emergency alert.

13. The method according to claim 7, wherein the broadcast service includes an emergency alert message for alerting a disaster situation,

wherein the emergency alert message includes an identifier for identifying an emergency alert, first information representing a category of the emergency alert, second information representing a priority of the emergency alert and third information representing a region corresponding to the emergency alert, and

wherein the second information includes a plurality of ranks for determining priority of the emergency alert.