APPARATUS FOR TRANSMITTING BROADCAST SIGNALS, APPARATUS FOR RECEIVING BROADCAST SIGNALS, METHOD FOR TRANSMITTING BROADCAST SIGNALS AND METHOD FOR RECEIVING BROADCAST SIGNALS

• US 20160309238A1
• Filed: 12/01/2014
• Published: 10/20/2016
• Est. Priority Date: 12/03/2013
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: AN, Seungjoo, MOON, Kyoungsoo, LEE, Jinwon, KO, Woosuk, OH, Sejin, KANG, Donghyun, HONG, Sungryong
• Granted Patent: US 9,800,952 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04H 20/93 which locates resources of other pieces of information, e.g. URL [Uniform Resource Locator]
• CPC Class Codes: H04H 2201/50 characterised by the use of watermarks
• CPC Class Codes: H04H 60/13 Arrangements for device control affected by the broadcast information
• CPC Class Codes: H04N 21/2353 specifically adapted to content descriptors, e.g. coding, compressing or processing of metadata
• 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 21/23892 involving embedding information at multiplex stream level, e.g. embedding a watermark at packet level
• CPC Class Codes: H04N 21/4126 The peripheral being portable, e.g. PDAs or mobile phones
• CPC Class Codes: H04N 21/4622 Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859
• CPC Class Codes: H04N 21/64322 IP
• CPC Class Codes: H04N 21/8133 specifically related to the content, e.g. biography of the actors in a movie, detailed information about an article seen in a video program
• CPC Class Codes: H04N 21/8358 involving watermark protecting executable software by watermarking G06F21/16; image watermarking in general G06T1/0021; watermarks inserted in still images for transmission purposes H04N1/32144; inserting watermarks during video coding H04N19/467
• CPC Class Codes: H04N 21/8547 involving timestamps for synchronizing content
• 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 provides a method of transmitting broadcast signals. The method includes, receiving an uncompressed broadcast content from an external receiving unit, wherein an watermark is embedded in a frame of the uncompressed broadcast content; extracting the embedded watermark from the uncompressed broadcast content; parsing the extracted watermark; generating an URL by using information in the parsed watermark; and launching an application by using the generated URL, wherein the application provides the interactive services related to the uncompressed broadcast content.

Claims

1-20. -20. (canceled)

21. A method of providing interactive services, the method comprising:

receiving a broadcast content from an external input source, the broadcast content derived from a broadcast stream, wherein the broadcast content includes frames that a plurality of watermarks are embedded;

extracting the embedded watermarks from the broadcast content;

parsing the extracted watermarks;

generating an URL by using information in the parsed watermarks; and

requesting a supplementary content for the broadcast content to a server by using the generated URL; and

retrieving the supplementary content from the server, wherein at least one of the watermarks includes at least one watermark block, the watermark block is either full watermark information or a fragment of watermark information.

22. The method of claim 21, wherein the at least one watermark block includes a fragment number field and a last fragment field,

the fragment number field specifying a fragment number of a fragment included in the at least one watermark block,

the last fragment field specifying a fragment number of last fragment of corresponding watermark information.

23. The method of claim 21, wherein one of the watermark information includes content identification message including at least one of a channel ID or a content ID,

wherein the channel ID identifies a broadcast service associated with the broadcast content, and

the content ID identifies the broadcast content received from the external input source.

24. The method of claim 21, wherein the content ID has a type of EIDR (Entertainment Industry Data Registry).

25. The method of claim 21, wherein one of the watermark information includes first information and second information,

the first information identifying the server for acquisition of the supplementary content, and

the second information identifying a specific point of the broadcast content in which a corresponding watermark is embedded.

26. The method of claim 25, wherein the one of the watermark information further includes third information specifying configuration of the watermark information.

27. The method of claim 21, wherein one of the watermarks includes an URL protocol field indicating a protocol that the URL uses, and

wherein one of the other watermarks includes an URL field including a fraction of the URL.

28. An apparatus for providing interactive services, the apparatus comprising:

a receiving module that receives a broadcast content from an external input source, the broadcast content derived from a broadcast stream, wherein the broadcast content includes frames that a plurality of watermarks are embedded;

an extracting module that extracts the embedded watermarks from the broadcast content;

a parsing module that parses the extracted watermarks;

a generating module that generates an URL by using information in the parsed watermarks; and

a network interface that requests a supplementary content for the broadcast content to a server by using the generated URL, and retrieves supplementary content from the server,

wherein at least one of the watermarks includes at least one watermark block, the watermark block is either full watermark information or a fragment of watermark information.

29. The apparatus of claim 28, wherein the at least one watermark block includes a fragment number field and a last fragment field,

the fragment number field specifying a fragment number of a fragment included in the at least one watermark block,

the last fragment field specifying a fragment number of last fragment of corresponding watermark information.

30. The apparatus of claim 28, wherein one of the watermark information includes content identification message including at least one of a channel ID or a content ID,

wherein the channel ID identifies a broadcast service associated with the broadcast content, and

the content ID identifies the broadcast content received from the external input source.

31. The apparatus of claim 28, wherein the content ID has a type of EIDR (Entertainment Industry Data Registry).

32. The apparatus of claim 28, wherein one of the watermark information includes first information and second information,

the first information identifying the server for acquisition of the supplementary content, and

the second information identifying a specific point of the broadcast content in which a corresponding watermark is embedded.

33. The apparatus of claim 32, wherein the one of the watermark information further includes third information specifying configuration of the watermark information.

34. The apparatus of claim 28, wherein one of the watermarks includes an URL protocol field indicating a protocol that the URL uses, and

wherein one of the other watermarks includes an URL field including a fraction of the URL.