KR20170044922A - Method for synchronizing contents between multiscreen devices - Google Patents

Method for synchronizing contents between multiscreen devices Download PDF

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Publication number
KR20170044922A
KR20170044922A KR1020150144635A KR20150144635A KR20170044922A KR 20170044922 A KR20170044922 A KR 20170044922A KR 1020150144635 A KR1020150144635 A KR 1020150144635A KR 20150144635 A KR20150144635 A KR 20150144635A KR 20170044922 A KR20170044922 A KR 20170044922A
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KR
South Korea
Prior art keywords
content
smart
screen
smart device
synchronization
Prior art date
Application number
KR1020150144635A
Other languages
Korean (ko)
Inventor
김재호
김창기
유정주
Original Assignee
한국전자통신연구원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 한국전자통신연구원 filed Critical 한국전자통신연구원
Priority to KR1020150144635A priority Critical patent/KR20170044922A/en
Publication of KR20170044922A publication Critical patent/KR20170044922A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/845—Structuring of content, e.g. decomposing content into time segments

Abstract

A method for synchronizing content playback between multi-screen devices according to an exemplary embodiment of the present invention includes: requesting content for synchronization from a first multi-screen device to a second multi-screen device; The second multi-screen device providing content and synchronization information to a first multi-screen device; And performing content synchronization reproduction in the first multi-screen device using the synchronization information.

Description

TECHNICAL FIELD [0001] The present invention relates to a method for synchronizing contents between multiscreen devices,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for synchronizing content playback between multi-screen devices, and more particularly, to a technique for synchronizing content between devices in a multi-screen environment composed of a smart TV and a smart device.

Recently, researches have been actively conducted to provide users with more convenient and useful services by wirelessly connecting computers, various sensors, and various electronic devices. Particularly, as the use of electronic devices is increasing, the necessity of sharing contents among electronic devices is also increasing

Especially, multi - screen service users who consume contents using a personal smart device at the same time while watching TV are increasing rapidly. For example, users want to watch subtitles in their preferred language using a smart device while watching TV, or receive personalized advertisements when they appear on TV.

Patent Publication No. KR 2015-0028972

An embodiment of the present invention is to provide a content synchronization and playback method between multi-screen devices capable of synchronously providing contents between multi-screen devices such as a smart TV and a smart device.

The technical problems of the present invention are not limited to the above-mentioned technical problems, and other technical problems which are not mentioned can be understood by those skilled in the art from the following description.

A method for synchronizing content playback between multi-screen devices according to an exemplary embodiment of the present invention includes: requesting content for synchronization from a first multi-screen device to a second multi-screen device; The second multi-screen device providing content and synchronization information to a first multi-screen device; And performing content synchronization reproduction in the first multi-screen device using the synchronization information.

According to this technology, a user can receive a synchronized multi-screen service using a smart device while watching TV.

1 is an overall configuration diagram of a multi-screen time shift service system according to an embodiment of the present invention.
FIG. 2 is a diagram for explaining a content synchronization / playback method between a smart TV and a smart device according to an embodiment of the present invention.
3 is a configuration diagram for content synchronization between a smart TV and a smart device according to an embodiment of the present invention.
4 is a flowchart illustrating a content synchronization method between a smart TV and a smart device according to an embodiment of the present invention.
5 is a configuration diagram for content synchronization between a smart TV and a smart device according to another embodiment of the present invention.
6 is a flowchart illustrating a content synchronization method between a smart TV and a smart device according to another embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted in an ideal or overly formal sense unless explicitly defined in the present application Do not.

The present invention discloses a technique for providing a multi-screen time shift service and a method for providing a personalized advertisement service in an environment using a smart TV and a smart device (smart phone, tablet PC, etc.).

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 6. FIG.

1 is an overall configuration diagram of a multi-screen time shift service system according to an embodiment of the present invention.

The multi-screen time shift service system according to the embodiment of the present invention provides content synchronization between the smart TV 100 and the smart device 200.

The smart TV 100 is connected to a broadcasting network or an internet network and reproduces broadcasting network contents such as terrestrial, satellite, IPTV, Web TV, and Internet contents.

The smart device 200 may provide a time shift service in cooperation with the smart TV 100 as a smart phone, a tablet PC, or the like. The time shift service is a service that allows the user to view the immediately preceding scene of the content being played back on the smart TV 100 using the smart device 200 while watching the smart TV 100 and to view the previous scene Service.

The smart device 200 may reproduce a personalized advertisement related to the TV advertisement and provide the user with the advertisement when the advertisement is reproduced on the smart TV 100. [

At this time, the time-shift service content and the customized advertisement content provided through the screen of the smart device 200 are defined as the second screen content. The second screen content may be provided through communication between the smart TV 100 and the smart device 200 or may be provided directly to the smart device 200 through the Internet network.

FIG. 2 is a diagram for explaining a content synchronization / playback method between the smart TV 100 and the smart device 200 according to an embodiment of the present invention.

The smart device 1 provides a multi-screen time shift service synchronized with the smart TV 100. The smart device 1 plays back the same portion of the content at the same time as the smart TV 100, so that the user can see a scene that he missed or wants to see again, that is, a previous scene.

The smart device 2 provides a user-customized advertisement synchronized with a period during which the advertisement is displayed while watching the content of the smart TV 100. [

Referring to FIG. 2, while nine content blocks are being played back in the smart TV 100, the smart device 1 plays back from three blocks, and the smart device 2 provides a user-customized advertisement in four blocks and seven blocks, Able to know.

3 is a configuration diagram for content synchronization between a smart TV and a smart device according to an embodiment of the present invention.

Referring to FIG. 3, the smart TV 100 receives TV contents from a broadcasting network (broadcasting network) 10. When receiving the second screen content from the smart device 200, the smart TV 100 transmits the TV content provided from the broadcast network 10 to the smart device 200 as the second screen content. At this time, the smart TV 100 transmits the synchronization information together with the second screen content transmission. The synchronization information may include a current time, a delay time, and a second screen content playback time. The smart TV 100 generates a delay buffer 110 for delaying and reproducing the TV contents for a delay time including synchronization of content between devices in synchronization information. The size of the delay buffer 110 may be determined in consideration of the time of generating the second screen content provided by the smart TV 100, the communication time with the smart device 200, and the content processing time of the smart device 200.

The smart device 200 executes the second screen service application and requests the second screen content to the smart TV 200. [ When the smart device 200 receives the second screen content and the synchronization information from the smart TV 100, it reproduces the second screen content using the synchronization information.

4 is a flowchart illustrating a content synchronization method between a smart TV and a smart device according to an embodiment of the present invention.

First, the smart device 200 executes a service application for providing a second screen service (S101), and requests a second content to the smart TV 100 (S102).

Accordingly, the smart TV 100 transmits the second content and the synchronization information to the smart device 200. At this time, the synchronization information includes the current time, a delay time indicating the size of the delay buffer, and a playback time of the content being currently played back.

Thereafter, the smart TV 100 generates a delay buffer for delaying and reproducing the TV contents for the delay time included in the synchronization information (S104).

Then, the smart device 100 searches the reproduction point of the second screen content after the delay time has elapsed from the system time of the smart TV 100 received from the smart TV 100 to reproduce the second screen content (S105).

At this time, the system time of the smart TV 100 and the smart device 200 are synchronized through a synchronization protocol such as NTP (Network Time Protocol). In addition, the TV content and the second screen content of the smart TV 100 have the same timeline information. The smart device 200 uses the synchronization information received from the smart TV 100 to determine the point after the delay time from the system time (current time) of the smart TV 100 as the reproduction point of the secondary screen content. That is, the reproduction point of the second screen content is equal to the reproduction point of the TV content plus the delay time. The smart device 200 reproduces the secondary screen content from a point determined as the reproduction point.

5 is a configuration diagram for content synchronization between the smart TV 100 and the smart device 200 according to another embodiment of the present invention.

The smart device 200 according to another embodiment of the present invention directly receives the second screen content from the content server 300 through the Internet network.

The smart device 200 directly requests the second screen content to the content server 300 via the Internet. When the smart device 200 receives the second screen content and the synchronization information from the content server 300, the smart device 200 transmits a synchronization request message requesting the smart TV 100 to delay the content of the smart TV.

When the smart TV 100 receives the synchronization request message from the smart device 200, the smart TV 100 transmits the synchronization information received from the content server 300, the content request message processing delay of the smart device 200, The delay time is determined in consideration of the message processing delay time. The smart TV 100 transmits the determined delay time to the smart device 200 through the synchronization response message.

The content server 300 is a server for storing a plurality of contents and retrieving and providing requested contents. When receiving a content request from the smart device 200, the content server 300 transmits the secondary screen content and synchronization information to the smart device 200 . At this time, the synchronization information includes time line information of the same second screen content as the timeline information of the broadcast content and a relative delay time of the second screen content.

6 is a flowchart illustrating a content synchronization method between a smart TV and a smart device according to another embodiment of the present invention.

First, the smart device 200 executes the time shift service application (S201) and requests the content server 300 for the second screen content (S202).

The content server 300 transmits the second screen content and the synchronization information to the smart device 200 (S203). At this time, the synchronization information includes timeline information of the same second screen content as the timeline information of the broadcast content and the relative delay time of the second screen content.

Thereafter, the smart device 200 transmits a synchronization request message for delaying the TV content to the smart TV 100 (S204). Next, the smart TV 100 determines a delay time and transmits the delay time to the smart device 200 through a synchronization response message (S205).

Accordingly, the smart device 200 performs content synchronization reproduction according to the delay time (S206).

As described above, the present invention adds a delay buffer to a smart TV, provides synchronization information between a smart TV and a smart device as a smart device, and synchronously reproduces content according to synchronization information in a smart device.

In addition, the smart device of the present invention can perform connected applications that can be provided on a TV, such as communicating with an acquaintance who is viewing the same broadcast through a social networking such as a Twitter / Lt; / RTI >

In addition, the user of the smart device of the present invention may temporarily stop the content of the smart TV or search for broadcast contents of another channel through channel zapping, or individually operate the broadcast guide for the currently broadcast content .

In addition, the smart device can display at a resolution suitable for the display for synchronized playback of the second screen content.

In addition, the present invention can be implemented so that the second screen content can be synchronously reproduced through a plurality of smart devices.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: Smart TV
200: Smart devices
300: Content server

Claims (1)

A method for synchronizing and reproducing contents among multi-screen devices,
The first multi-screen device requesting content for synchronization to the second multi-screen device;
The second multi-screen device providing content and synchronization information to a first multi-screen device;
Performing content synchronization reproduction in the first multi-screen device using the synchronization information
And a content synchronizing / reproducing unit for synchronizing contents among the multi-screen devices.
KR1020150144635A 2015-10-16 2015-10-16 Method for synchronizing contents between multiscreen devices KR20170044922A (en)

Priority Applications (1)

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KR1020150144635A KR20170044922A (en) 2015-10-16 2015-10-16 Method for synchronizing contents between multiscreen devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150144635A KR20170044922A (en) 2015-10-16 2015-10-16 Method for synchronizing contents between multiscreen devices

Publications (1)

Publication Number Publication Date
KR20170044922A true KR20170044922A (en) 2017-04-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112261318A (en) * 2020-09-14 2021-01-22 西安万像电子科技有限公司 Multi-split-screen video synchronization method and device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112261318A (en) * 2020-09-14 2021-01-22 西安万像电子科技有限公司 Multi-split-screen video synchronization method and device

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