KR20130124183A - Broadcast receiving apparatus and method for controlling applicationm, and device - Google Patents

Broadcast receiving apparatus and method for controlling applicationm, and device Download PDF

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Publication number
KR20130124183A
KR20130124183A KR1020130029960A KR20130029960A KR20130124183A KR 20130124183 A KR20130124183 A KR 20130124183A KR 1020130029960 A KR1020130029960 A KR 1020130029960A KR 20130029960 A KR20130029960 A KR 20130029960A KR 20130124183 A KR20130124183 A KR 20130124183A
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KR
South Korea
Prior art keywords
application
information
identified
receiving
received
Prior art date
Application number
KR1020130029960A
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Korean (ko)
Inventor
리차드 웰스
시몬 아서 월러
존 아담
져먼 벤치
Original Assignee
삼성전자주식회사
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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Priority claimed from GB1207890.3A external-priority patent/GB2492443B/en
Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to EP13163757.1A priority Critical patent/EP2660998A3/en
Priority to US13/869,153 priority patent/US20130298169A1/en
Priority to CN201310161245.8A priority patent/CN103384350B/en
Publication of KR20130124183A publication Critical patent/KR20130124183A/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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—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
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/441—Acquiring end-user identification, e.g. using personal code sent by the remote control or by inserting a card
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

A broadcast receiving apparatus capable of communicating with a secondary device, an application control method thereof and a device are provided. The broadcast receiving apparatus comprises: a receiving module for receiving application information related to a selected program; and a control module for receiving a control command from a control device, wherein the control module directs a secondary device to run an application identified based on the application information in response to a predetermined control signal if the secondary device is registered as a device for communicating with a broadcast receiving apparatus. [Reference numerals] (AA) Start;(BB) End;(S601) Extract information about an application by receiving a broadcast stream;(S602) Receive control signals;(S603) Is there a registered second device ?;(S604) Control the second device to start the application

Description

Broadcast receiving apparatus capable of communicating with a second device and its application control method, and device TECHNICAL FIELD

The present invention relates to a broadcast receiving apparatus capable of communicating with a second device, a method for controlling an application thereof, and a device, and more particularly, to receive application information while a device receives a broadcast stream, and to register the second device with the device. The present invention relates to a broadcast receiving apparatus capable of communicating with a second device so as to start an application identified by application information, an application control method thereof, and a device.

In existing broadcast systems such as MHEG and MHP, applications are transmitted over broadcast streams and executed by broadcast receivers. The application may allow certain actions to be triggered by user input, but these specific actions are not programmed in the application. Therefore, the application must be executed to use the user function. The broadcast application may be executed through a direct response to specific signaling as defined in TS 102 809 and may be executed through a menu or other UI provided by a manufacturer. Alternatively, the broadcast receiver may implement software for automatically running an application provided by the broadcast provider. In addition, recent receivers have been developed to be able to communicate with a second device such as a smart phone. However, the range of interaction between the broadcast receiver and the second device is currently limited.

An embodiment of the present invention relates to an apparatus for receiving a broadcast stream, wherein the apparatus may communicate with a second device, and the apparatus may receive application information related to a selected program through the broadcast stream. And a control interface for receiving a control signal from the control device. In particular, when the second device is registered with the apparatus to receive communication from the apparatus, the apparatus controls the second device to execute the application identified by the application information in response to receiving the preset control signal.

The identified application is a first application, and when the device currently executes a second application related to the first application, the device may control the second device to execute the first application.

The apparatus may receive information from the second device as to whether or not the second device can execute the identified application, and if it is determined that the second device can execute the application, the apparatus may be configured to execute the identified application. Can be controlled.

The apparatus may register the second device in response to the registration request received from the second device.

When the second device is registered with the device, the device periodically receives a keep-alive message from the second device to maintain communication with the second device, and after receiving the last keep-alive message, If the keepalive message is not received within the set time, the apparatus may determine that the second device is no longer registered.

The application information includes version information defining a version of the confirmed application executed on the second device, and the apparatus may transmit version information to the second device.

The receiving module may receive the application data through the broadcast stream, the application data including the device ID for checking the application and the additional data for the application to be delivered, and the device may include an application in which the second device is identified by the device ID. The apparatus may determine whether to execute the application, and when the second device executes the identified application, the apparatus may transmit application data to the second device.

The selected program may be a recorded program stored in a storage module accessible by the device, and the device information may record the application information received through the broadcast stream and the time when the selected program is recorded.

According to an embodiment of the present invention, a system including the aforementioned apparatus and the second device may be provided.

The second device may be registered with the device by sending a registration request to the device.

The second device may periodically send a keepalive message to the device after registering with the device to maintain a connection with the device.

The device information may include an application ID, a Uniform Resource Locator (URL), and the device may control the second device to execute the identified application by transmitting the application ID and the URL to the second device, in particular, the second The device includes a network communication module for communicating with a network, and the second device may determine whether an application identified by the application ID is already installed in the second device, and if the application is not installed, receive the application. To the network location identified by the URL from the network communication module.

The second device may receive version information from the device, and the version information indicates the version of the application, and if the device is already installed, the second device may be a version in which the installed application version is not the version identified by the version information. It may be determined whether it is an older version by determining whether it is no longer the latest version, and if the installed version is an older version, it may connect to the network location identified by the URL to receive the updated version.

The apparatus transmits program information to the second device to identify a program currently tuned to by the second device in the broadcast stream, and the second device may select an application from a plurality of known applications based on the program information.

The device may obtain program information from electronic program guide (EPG) information received through a broadcast stream.

The second device may determine whether the second device starts the application based on proximity to the receiver.

The second device may comprise a microphone and / or a camera, may record audio and / or video data for a preset time, and the recorded audio and / or known audio and / or video data of the program currently displayed by the receiver And / or compare the video data, and determine whether the second device is currently in proximity to the receiver.

The second device can receive known audio and / or video data from a receiver or an online database.

The device may record the known audio and / or video data of the selected program for a predetermined time and transmit the known audio and / or video data to the second device. The second device may determine a correlation between the recorded audio and / or video data and known audio and / or video data received from the device, and if the correlation value is greater than or equal to a preset value, start the application. Or register with the device to receive information.

The second device may be connected to the Internet to receive additional information related to the selected program.

The second device may send additional information related to the selected program to the device, and the device may display the additional information on the display.

If the information related to the selected program is a phone number, the second device may dial the received phone number or transmit a text message to the received phone number.

When the information related to the selected program is a URL, the second device may receive and execute an application from a location identified by the URL or connect to a location identified by the URL to display a webpage of a location connected on the display.

According to an embodiment of the present invention, there is provided a device for performing communication from an apparatus for receiving a broadcast stream, the device comprising: a receiving interface module capable of communicating with the apparatus, and received from the apparatus via the receiving interface module. In response to the command, the program currently selected by the device can be identified, the application associated with the selected selected program is confirmed, and the identified application is started. In this case, the device may be implemented as a smartphone, a tablet PC, a personal digital assistance (PDA), or the like. The device may be implemented as a receiver such as a TV or set top box. In one embodiment, the device is not a broadcast receiver, but may be implemented as a device such as a DVD player capable of playing audio / video data.

The control module of the device confirms the selected program by comparing the known audio and / or video data of the plurality of programs with the audio and / or video data of the selected program, or receives the program information from the device and selects the selected program based on the received program information. You can check the program. The program information may include a command received from the device, but may be received separately. The program information may include the program ID of the selected program or information on the currently tuned channel and the current time when the program identified from the EPG is allowed. The device may look up the program information stored in the storage module to identify the selected program, and the storage module may store information for identifying the plurality of programs. The information for identifying the plurality of programs may include program IDs for the plurality of programs and EPG information including information available for each of the plurality of programs received through the broadcast stream. The storage module may be a local storage module included in the device. Alternatively, or in addition, the device may include a network interface module for communicating with a remote storage module, such as an internet server, which stores a database of program information. The control module may transmit the received program information to the server, and may receive the application information to start the identified application. Similarly, when audio and / or video data of a selected program is used, known audio and / or video data for a plurality of programs may be stored in the device or remotely.

According to one embodiment of the invention, as described above, there is provided a method of using an apparatus for identifying and starting an application associated with a selected program, wherein a computer recording medium capable of storing a computer program for performing the method is provided. Can be provided.

According to an embodiment of the present invention, an apparatus for receiving a broadcast stream is provided, the apparatus may communicate with a second device, the apparatus from a receiving module and a control apparatus for receiving application information associated with a selected program And a control interface for receiving a control signal, in particular, when the second device is registered with the device to receive communication from the device, the device executes an application identified by the application information in response to a preset control signal. The second device can be controlled to In other words, the application information may be obtained from sources other than the broadcast stream.

According to an embodiment of the present invention, there is provided a method for starting an application on a second device from an apparatus for receiving a broadcast stream, the apparatus capable of communicating with the second device, and receiving a control signal from the control device. Can be received. In particular, the method includes a device receiving application information associated with a selected program via a broadcast stream, a device receiving a preset control signal from a control device, and a second device registered with the device for receiving communication with the device. And if so, controlling the second device to execute the application identified by the application information.

The identified application is a first application, and when the apparatus currently executes a second application related to the first application, the second device may be controlled to execute the first application.

The method includes receiving information from a second device as to whether or not the second device can execute the identified application, and if it is determined that the second device can execute the application, the second device is identified. It can be controlled to run the application.

The method may further include registering the second device in response to the registration request signal received from the second device prior to receiving the preset control signal.

The method includes: periodically receiving a keepalive message from a second device and maintaining a preset time after receiving a last keepalive message when the second device is registered with the device, to maintain communication with the second device; If the keep-alive message has not been received for a while, determining that the second device is no longer registered.

The application information includes version information defining a version of the identified application running on the second device, and the method may include transmitting version information from the apparatus to the second device.

The method includes the device receiving an application via a broadcast stream, the application data including an application ID for identifying the application and additional data for the application to be delivered, wherein the device identifies the application by the application ID. The method may include determining whether the application can be executed, and if the second device can execute the identified application, transmitting the application data from the apparatus to the second device.

The selected program may be a recorded program stored in a storage module accessible by the device, and the application information may be recorded in the application information received through the broadcast stream, and the time at which the selected program is recorded may be recorded.

According to an embodiment of the present invention, a computer recording medium capable of storing a computer program for performing an apparatus described above may be provided.

The method may include sending a registration request from the second device to the device for the second device to register with the device.

The method may include periodically sending a keepalive message from the second device to the device after the second device is registered with the device so that the device maintains the connection.

The device information may include an application ID and a URL, and controlling the second device to execute the identified application includes sending the application ID and the URL from the device to the second device, wherein the second device is connected to the network. A network communication module capable of performing communication, the method also includes determining whether an application identified by the application ID has already been installed on the second device, and if the application is not installed, the network to receive the application. Connecting to the network location identified by the URL via the communication module.

The method also includes receiving version information by the second device from the apparatus, the version information defining the version of the application, the method including whether the version on which the second device is installed is the version identified by the version information and the latest version. Determining whether it was a previous version by determining whether it is a previous version, and if the installed version is a previous version, connecting to a network location identified by the URL to receive the updated version.

The method includes transmitting a program from an apparatus to a second device to identify a program currently tuned in a broadcast stream and the second device selecting an application from a plurality of known applications based on the program information.

The method includes the device obtaining program information from the EPG information received via the broadcast stream.

The method includes determining whether the second device starts an application based on the proximity of the second device and the receiver.

The second device may comprise a microphone and / or a camera, the method comprising the steps of recording the audio and / or video data for a predetermined time by the second device and determining whether the second device is in proximity to the receiver Comparing the recorded audio and / or video data with known audio and / or video data of the program currently being displayed by the receiver.

The method includes the second device receiving known audio and / or video data from a receiver or an online database.

1 is a diagram illustrating a system including an apparatus for receiving a broadcast stream and a plurality of second devices connectable with the apparatus, according to an embodiment of the present invention;
2 is a block diagram of an apparatus for receiving a broadcast stream of FIG. 1 according to an embodiment of the present invention;
3 is a diagram illustrating syntax of second_device_descriptor () received through a broadcast stream according to an embodiment of the present invention;
4 is a diagram illustrating syntax of link_info () received through a broadcast stream, according to an embodiment of the present invention;
5 is a diagram illustrating syntax of actication_key_descriptor () received through a broadcast stream, according to an embodiment of the present invention;
6 is a flowchart illustrating a method of using an apparatus for receiving a broadcast stream, according to an embodiment of the present invention;
7 is a flowchart illustrating a method of executing an application on a second device according to an embodiment of the present invention;
8 is a block diagram of a second device for identifying and starting an application in response to a command received from a broadcast receiver, according to an embodiment of the present invention;
9 is a flowchart illustrating a method of starting an application by a second device according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

1 is a diagram illustrating a system including an apparatus for receiving a broadcast stream and a plurality of second devices connectable with the apparatus, according to an embodiment of the present invention. As shown in FIG. 1, an apparatus for receiving a broadcast stream is shown according to an embodiment of the present invention. According to an embodiment of the present invention, the device may be connected to a TV 110 for displaying a program currently received through a broadcast stream, and is controlled by a digital video broadcasting (DVB) receiver controlled by the remote controller 120 In the " receiver " The receiver 110 can tune to a particular channel to receive audio / video data of the program currently being broadcast from that channel, decode the audio / video data to display the received audio / video data, and view the The decoded audio / video data is transmitted to the TV 110 so that the TV 110 can transmit the decoded audio / video data. The user may control the receiver 100 through the remote controller 120 such as changing the channel tuned by the receiver 100.

According to an embodiment of the present invention, the remote controller 120 is similar to a conventional TV remote controller, and a plurality of remote control 120 so that a user can operate the remote controller 120 to transmit one of a plurality of control signals to the receiver 100. It can contain a key. The control signal may represent one of the selected keys. In another embodiment, the remote controller 120 may include a touch screen for displaying a user interface having a plurality of user input areas instead of a plurality of keys. For example, instead of the remote control as shown in FIG. 1, the device may receive a control signal from a mobile device such as a smartphone or tablet PC.

In addition, the receiver 100 may be connected to at least one second device 140 such as a smart phone, a tablet PC, and the like, and may transmit / receive information with the second device 140. The receiver 100 may be connected to the second device 140 through a wireless local area network (WLAN), and each second device 140 may be connected to the internet 150. The receiver 100 receives target device information on at least one device on which an application can be started through a broadcast stream. The connection between each second device, receiver 100 and internet 150 may be wireless or wired. In addition, the second device 140 may be connected to a telephone network to conduct a telephone call.

The receiver 100 receives application information as well as broadcast program audio / video data through a broadcast stream. The application information may be information for identifying an application started on the second device 140. For example, the application information may be a URL for identifying a network location (eg, a web server) from which the application can be downloaded. In general, the application information may be other information such as an application ID including an application information table (AIT) defined in ETSI TS 102 809. When the second device 140 is registered with the apparatus for receiving a communication from the apparatus, the receiver 100 may respond to the preset control signal by controlling the second device 140 to execute the application identified by the application information. Can be.

Also, in one example, the application can be started under conditions of other parameters. For example, the first application running on the second device 140 may be associated with a second application running on the receiver 100. This may apply to cases where a plurality of second devices participate in an interactive quiz with a plurality of users, where their scores are sent to the receiver 100 for analysis. In such an embodiment, the master application may be controlled by the receiver 100 to analyze and display scores received from client applications running on the second device. The receiver 100 may extract application data from the broadcast stream so that the master application is delivered. An example of application data for a quiz application may be a question related to a program currently being broadcast, in which case the question text may be received via the broadcast stream and displayed on the TV screen by the master application. Application data received via the broadcast stream may be delivered to a client application on a second device, such as a plurality of answerers, such that the displayed question may be sent to the second device. The client application on the second device receives application data such as a plurality of answers, displays the plurality of answers on the display of the second device so that the user can select one of the plurality of answers, and displays data representing the selected answers on the receiver. Can transmit The master application determines the score of each user based on the selected answer received from the second device and displays the current score on the TV. In addition, the master application may apply a time limit to the received response.

In another embodiment, if the container application is already executed by the second device, the application to be started may be started by plugging in the container application. In this case, the receiver may send a query to the second device to inquire whether the requested container application is currently running, and receive a response from the second device indicating whether the container application is running. When the container application is running, the receiver controls the second device to start the identified plug-in application.

In addition, in one embodiment, the receiver may determine whether to control the second device to execute the application based on the information on whether the application received from the second device can run. For example, a plurality of different types of applications may be received through a broadcast stream, where a plurality of different types of applications may be written in different programming languages. The second device may drive an application for at least one type of the plurality of types. Therefore, the application information received through the broadcast stream may indicate the type of application, and the receiver may transmit information about the application type to the second device. If the second device responds with being able to run the type of application received, the receiver may control the second device to start the application, but otherwise the application does not start. In general, when a second device registered with the receiver transmits information about an applicable type of application, the receiver may store the applicable type of application for each registered second device. This approach eliminates the need to send a query to the second device each time the application is started.

2 is a block diagram of an apparatus for receiving a broadcast stream of FIG. 1 according to an embodiment of the present invention. As shown in FIG. 2. According to an embodiment of the present invention, the receiver 100 includes a tuner / decoder module 201, a control module 202 and a control interface module 203. The structure shown in FIG. 2 is only one embodiment, but is not limited thereto. Modules may be physically separate or implemented as software executed by a processor. In other embodiments, the functionality of the various modules shown in FIG. 2 may be separated or integrated into at least one module as needed.

In one embodiment of the invention, the tuner / decoder module 201 receives and demodulates the broadcast stream 230, tunes the selected channel, and decodes the audio / video data of the program currently broadcast on the tuned channel. do. The tuner / decoder 201 transmits the decoded audio / video data to the TV 110. The tuner / decoder 201 also extracts metadata including application information from the broadcast stream 130 and transmits the application information to the control module 102.

In addition, the preset control signal is a control signal corresponding to a specific key (for example, a RED key) of the remote controller. However, in another embodiment, the predetermined control signal may be defined by the broadcast provider using key information received through the broadcast stream. In such an embodiment, key information may be extracted by the tuner / decoder module 201 from the broadcast stream. The key information confirms one of a plurality of control signals that can be received from the remote controller 120. The tuner / decoder module 201 may transmit key information to the control module 102 together with the application information.

The receiver 100 may control the second device to execute the application by transferring the application information to the second device. For example, a new Universal Plug and Play (UPnP) Digital Living Network Alliance (DLNA) for application information such as a web URL or an application ID so that at least one second device 140 can be inserted from the receiver 100. Profiles can be created. This profile allows application information such as URL information received via the broadcast stream by the receiver to insert the second device 140 on an ad-hoc basis. The receiver 100 determines whether the second device is registered with the receiver 100 to receive data, and when the second device is registered, the receiver 100 transmits a URL to the second device in a UPnP packet. . The second device may connect the URL included in the received UPnP data packet to execute the web-based application. In general, when the second device 140 receives the application ID from the receiver 100, the second device may directly start the identified application ID. If the identified application is not installed, the second device may be connected to the Internet 150 to download the application.

In the above-described embodiment, the UPnP packet is used for data transmission between the receiver 100 and the second device 140, but this is only one embodiment, and another data transmission protocol may be used.

The receiver may receive not only the application information but also the second device information through the broadcast stream. 3 illustrates a syntax of second_device_descriptor () received through a broadcast stream according to an embodiment of the present invention.

second_device_descriptor () 300 includes a conventional descriptor_tag and descriptor_length fields. In addition, second_device_descriptor () 300 includes a 2-bit target_device field and a 6-bit reserved field. In one embodiment of the present invention, the target_device field includes a value indicating at least one device for running a web-based application. More specifically, in one embodiment of the present invention, a value of 00 is reserved for future use, a value of 01 indicates that the application is executed only by the receiver, and a value of 10 indicates that the application is on at least one second device. A value of 11 indicates execution on the application receiver and the second device. The target device information is used to indicate whether the application is appropriate for the receiver or the second device, such as whether it can be edited or not.

By using second_device_descriptor (), broadcast providers can indicate their intentions for the application. For example, when the application is driven only on the reception, the application may be designed to be displayed on one side or the top of the broadcast video to interact with the broadcast video. In general, if the application is run only on the second device, it is unclear whether the application is running at the receiver. As another option, if the application is designed to operate according to the device on which it is executed, the application can run properly on the device. In addition, as described above, when second_device_descriptor () indicates that the application is to be executed on the second device, the receiver may control the second device to execute the application when the second device is registered with the receiver.

In addition, if second_device_descriptor () indicates that the application is appropriate to run only on the second device, the receiver may display an icon on the display to inform the user that the application is available without running the application itself. The application may be executed on the second device using the remote control key or other predetermined key identified by the key information.

4 is a diagram illustrating syntax of link_info () received through a broadcast stream according to an embodiment of the present invention. In one embodiment, if the receiver is a DVB applied receiver, the link_info () fragment 400 may be used to transmit application information over a broadcast stream. The link_info () structure is specifically defined in ETSI TS 102 822-3-1, and a detailed description thereof will be omitted.

In one embodiment of the present invention, the term_id and how_related_classification_scheme_id fields 410 define the type of application information currently provided and the relationship between the application and the current content. In detail, various classification structures may be used, and the how_related_classification_scheme_id field 410 may define a structure currently used. The term_id includes a code for defining application information currently provided and may be interpreted using a classification structure defined in the how_related_classification_scheme_id field 410. Application information, such as a URL for identifying a server from which the application can be downloaded, may be delivered by the media_uri_byte field 420 or a separate descriptor. For example, additional information related to the selected program may be received including link information of type "URL of a web application". Here, the receiver may transmit the URL to the second device, the second device may navigate the specific URL included in the link information, and execute the web-based application received through the URL.

Additionally, the broadcast provider may use additional information included in link_info () to signal how and when to perform the selected function. For example, the receiver may control the second device to execute the application only for the time when link information is available in the RCT. That is, the application can be started only if the link information still exists in the RCT received through the broadcast stream.

In addition, as described above, the broadcast may include key information in the broadcast stream to dynamically define a key for responding to controlling the second device to execute the application, thereby allowing the receiver to start the web application. Can define triggers that can In this case, the key information may be defined as shown in FIG. 5.

5 is a diagram illustrating syntax of actication_key_descriptor () received through a broadcast stream according to an embodiment of the present invention. In the receiver according to an embodiment of the present invention, key information may be received in the actication_key_descriptor () 500 illustrated in FIG. 5, but this is only an example and other formats may be used.

The actication_key_descriptor () 500 includes descriptor_tag and descriptor_length fields which are standard fields used for all descriptors conforming to the DVB standard. The descriptor_tag field is a unique value that defines this descriptor as actication_key_descriptor (), but the descriptor_length field defines the number of bytes along the descriptor_length field. The actication_key_descriptor () 500 includes an activation_key_code field that includes a value for identifying one of the plurality of control signals. In one embodiment, when the control signal is received from a remote control including a plurality of keys, each value corresponds to one of the keys of the remote control.

Specifically, conventional TV remote controls include red, green, yellow and blue keys. In general, the red key is used for interactive TV services and the blue key is used for audio selection. The yellow key and the green key are not used during the normal TV reception operation, and may be used for other operations.

The value included in the activation_key_code field represents a key to which the receiver responds by performing the selected function. In one embodiment, a value of 0x01 represents a red key, a value of 0x02 represents a green key, a value of 0x03 represents a yellow key, a value of 0x04 represents a blue key, and values of 0x00 and 0x05-0xFF in the future. Can be reserved for use. However, the correspondence relationship between the above-described value and the key is only one embodiment, but is not limited thereto.

In one embodiment, the receiver may monitor the RCT for application information. The activation_key_descriptor can be found to determine the control signal used to launch the identified application. If the application information is valid, the receiver can display an icon on the display to inform the user of the existence of the application. The particular icon used may be signaled as part of the RCT. Then, when the user selects the identified remote control key in the activation_key_code field, the receiver may respond by controlling the second device to start the application.

6 is a flowchart illustrating a method of using an apparatus for receiving a broadcast stream according to an embodiment of the present invention. The method preferably uses an apparatus such as the receiver shown in FIGS. 1 and 2. First, the receiver receives a broadcast stream (S601). This may include the start or continuation of broadcast stream reception. The receiver also extracts application information from the broadcast stream. Then, a predetermined control signal is received (S602). For example, the control signal may be defined by key information received through the broadcast stream or may be another preset control signal. Next, the receiver may respond to the control signal by determining whether the second device is registered to perform communication with the apparatus (S603). If the second device is not registered (S603-N), the application cannot be started and the process ends. However, when the second device is registered (S603-Y), the receiver controls the second device to start the application (S604).

7 is a flowchart illustrating a method of executing an application on a second device according to an embodiment of the present invention. The method suitably uses an apparatus, such as a receiver, which can be connected with at least one second device as shown in FIGS. 1 and 2. The method may be used to determine whether to start the application automatically or in response to user input.

First, the broadcast frame of the currently selected program is displayed (S701). Further information is extracted from the broadcast stream (S702). In this case, the additional information includes information on link information and whether a type of link information is available. In an embodiment, steps S701 and S702 may be reserved. In operation S703, it is determined whether the link information included in the application information is in the form of a URL. If not in the form of a URL (S703-N), the receiver returns to step S701 to display the next broadcast frame. If the URL form is found (S703-Y), the receiver determines whether the icon is included in the link information (S704). When the key information is included in the broadcast stream, the icon may be provided from the broadcast provider and may correspond to the remote control key identified by the key information. In one embodiment, if the key is omitted information, i.e., if another preset control signal is used to start the application, the icon is also omitted, and the method proceeds directly to step S707.

If the icon is included (S704-Y), it can be assumed that the application is executed only in response to user input. In this case, the receiver displays an icon (S705). For example, the icon may be an image of a button used to launch an application. In other embodiments, other visual information (eg, a text description of the button) may be received from the broadcast provider instead of the icon. The visual information allows the user to know the button defined by the key information so that the user knows to press the button to start the application. The receiver waits to receive a control signal corresponding to the specific key and visual information identified by the key information (S706). If the control signal is received, the apparatus may determine whether the second device is registered to start the application, as in steps S603 and S604 shown in FIG. 6.

However, if the icon is not included (S705-N), it may be assumed that the application is automatically executed on the second device without user input. In this case, the receiver determines whether the second device is connected, that is, registered to receive data (S707). If the second device is not connected (S707-N), the device determines that the application cannot be started, and returns to starting again. However, when the second device is connected (S707-Y), the receiver transmits the URL to the second device and executes the application so that the second device can automatically access and navigate the URL to receive the application. (S708). In a situation in which a plurality of second devices are connected, the receiver may transmit URLs to all connected devices, but this is only an example and may transmit URLs to at least one selected device.

In the embodiment of FIG. 7, the method involves executing a web-based application received from a location defined by a URL. However, the above-described embodiment is merely an example, and the application may be executed using other types of application information (for example, an application ID for identifying an application previously installed on the second device).

In one embodiment of the present invention, the second device may be coupled with a receiver to receive information related to a program currently being displayed, and each second device may be registered with the receiver to receive information. In one embodiment, each second device may transmit a registration request signal to register with the receiver. If a registration request is received, the receiver registers the second device. Then, the second device may periodically transmit the broadcast keepalive message at a predetermined time interval to maintain the connection with the apparatus. If the receiver does not receive the keepalive message for a preset time after the registration request or previous keep message is sent, the receiver determines that the second device is no longer within range of the device and withdraws the second device. However, in another embodiment, the registration of the second device may be maintained until the withdrawal request message is sent.

In addition, when it is determined that the second device is currently located near the TV, it is determined that the user of the second device is watching a program displayed on the TV, so that each second device may be registered in the apparatus. In order to determine that the second device is in close proximity, each second device may execute an automatic recognition process.

Specifically, the second device includes a microphone and / or a camera. The device records audio and / or video data of a selected program called audio and / or video data for known time periods. Known audio and / or video data is transmitted to the second device. Later, or simultaneously, the second device records itself audio and / or video data for a time corresponding to the preset time. The second device then determines a correlation between the recorded audio and / or video data and the audio and / or video data received from the device, and if the correlation value is greater than or equal to a predetermined value, Can be registered. Filtering may be applied to the recorded audio and / or video data prior to obtaining the correlation value.

In another embodiment, known audio and / or video data is received from another source, such as a server storing an online database. The second device may receive program information from the device to confirm the currently playing program, that is, the selected program. In such an embodiment, the second device may use the program information to request known audio and / or video data of the selected program from the online database. In this case, the program information may be obtained by the device from the EPG information.

The program information may be used to determine starting the application on the second device. For example, the second device may start a plurality of preset applications respectively corresponding to other broadcast programs. In this case, the application information may take the form of a program ID with a signal indicating that an application associated with the program is available. The receiver can control the second device to start the application by sending a program ID that can be used by the second device to select and launch the appropriate application.

In the above-described embodiment, in order to enable the second device to connect the URL for starting the application, the application is described as being started on the second device by transmitting the application information in the form of URL to the second device. However, in other embodiments, the application information may be received as an application ID. For example, a plurality of applications may be pre-installed on the second device, and the application may be started by transmitting an application ID to allow the second device to execute a request application identified from the plurality of applications. If the second device is not installing the identified application, the second device may be connected to the Internet to download the application.

Further, in another embodiment, the application information may include version information to identify the version of the application to be started. The receiver may send version information to the second device, and the application may be started only when the second device installs the required version of the application. For example, when a version of an application is installed, the second device compares the installed version with the version information to determine whether to execute the application. If the installed version is a previous version as a result of checking the version information, the second device may connect to the Internet to obtain an updated version of the application. In one embodiment, the version information may identify a previous version of the application, and the second device may execute a specific version except the most recent version. For example, this may be desirable if different versions correspond to different episodes of a particular series. If the user wants to watch the last episode again, the starting version may be the last version corresponding to the last episode rather than the most recent version corresponding to the most recent broadcast episode. In one embodiment of the invention, an umbrella application may be provided that includes other containers to update other programs / episodes, the version information being used to identify a specific container version corresponding to the currently selected episode. Can be used. This approach can prevent you from downloading and installing a new version of the application every time you want to watch another episode.

In an embodiment of the present invention, it has been described to start an application corresponding to a program currently received through a broadcast stream. However, in other embodiments, the selected program may be a recorded program, that is, a program previously recorded on a storage module accessible by the receiver, such as an internal or external hard disk. When a program is received and recorded, an application received through the broadcast stream may be stored together with the recorded program. Such embodiments may enable the correct application to be launched on the second device when the user wishes to watch the recorded program. Other features of the present invention can also be equally applied to recorded programs. For example, comparing audio / video data recorded by a second device may also be used to determine whether a program is currently being watched. If known audio / video data for comparison is obtained from an online database, the online database may store known data for previous broadcast programs as well as the currently broadcast program.

In addition, the application data may be received through a broadcast stream, and the application data includes an application ID and additional data so that the application may be delivered. The receiver checks whether the second device is executing the application identified by the application ID, and when the application is executed, additional data may be sent to the second device to deliver the application.

Embodiments of the present invention have been described as having the web URL signaled with the link_info () fragment. However, in other embodiments, the web URL or other information may be signaled by the AIT specified in ETSI TS 102 809. In this case, key information may be added to the AIT by using activation_key_descriptor if necessary.

Although one embodiment of the invention has been described as related to a DVB applied receiver, the invention is generally applicable to a suitable apparatus for receiving a broadcast stream. The device may be separate from the display, such as a set top box or a personal video recorder, but this is only one embodiment and may include the display. In one embodiment, the device may be implemented as a mobile device, such as a tablet PC, mobile phone device, or other personal computer, such as a desktop PC, laptop PC, or the like.

In addition, one embodiment of the present invention describes a device for receiving a control signal from a remote device, such as a remote control, a smart phone, a tablet PC. However, in other embodiments, the device may include direct user input means such as a plurality of keys or a touch screen. In this embodiment, when the user manipulates the user input means, a control signal can be generated inside the device.

In addition, in the embodiment of the present invention, the metadata related to the currently displayed broadcast program is described as being extracted from the broadcast stream. The metadata may include application information and may include other information such as version information and application data. However, in other embodiments, metadata may be extracted with respect to the selected program regardless of the currently displayed program. For example, while one program is displayed, the user can select another program in the EPG. The receiver can start the application identified by the metadata for the selected program.

In addition, although an embodiment of the present invention has been described as related to a DVB application system, in another embodiment of the present invention, such as a DVB (Digital Video Broadcasting) standard, an OIPE (Open IPTV Forum) standard, and a Digital Entertainment Content Ecosystem (DECE) standard It may be implemented according to other specifications.

Finally, one embodiment of the present invention has been described as receiving an application through a broadcast stream to identify the application being started. However, in other embodiments, the application to be started may be identified by other means different from the information transmitted through the broadcast stream. In this embodiment, the confirmation of the application to be started for the currently selected program is performed by the second device. The second device may start by identifying an application in response to a command from the broadcast receiver illustrated in FIG. 8.

8 is a block diagram of a second device for identifying and starting an application in response to a command received from a broadcast receiver, in accordance with an embodiment of the present invention. As shown in FIG. 8, the second device 800 includes a receiving interface module that receives information from a broadcast receiver such as the receiver 100 shown in FIGS. 1 and 2. The second device 800 includes a control module 803 for identifying and starting an application and a network interface module 802 for communicating with a network such as the Internet or a local network. In response to the start command of the application for the selected program, the receiving interface module 801 instructs the control module 803 to identify the application associated with the selected program. In the present embodiment, the command received from the broadcast receiver includes a program ID, and the control module 803 may transmit the program ID to the network server through the network interface module 802. The control module 803 may receive a response from the network server as to whether the application for the selected program is selectable, and the response may confirm whether the application is available. The control module 803 may start an identified application, such as an installed application, a downloaded application, or a container used within another application.

In another embodiment, the second device may identify the selected program without using the program ID. For example, the second device may receive A / V data from the receiver or record A / V data internally, and identify the selected program that is currently displayed with the received or recorded A / V data (internal or A / V data extracted from multiple programs (stored remotely) can be compared. In general, the receiver may send other types of program information to the second device, such as EPG information for the selected program, such as information currently selected for channel selection and current time for use in identifying the selected program. In addition, in one embodiment, the network interface module 802 may be omitted, and may include essential database information for storing an application to be checked that may be stored inside the second device 800. 9 is a flowchart illustrating a method of starting an application by a second device according to an embodiment of the present invention. First, the second device receives a command from the broadcast receiver to start an application related to the selected program (S901). The apparatus then attempts to confirm the selected program by checking the selected program based on the program ID or EPG information received from the broadcast receiver or by comparing the A / V data of the selected program with known A / V data. (S902). Then, the selected program is confirmed, and if the application is available, the corresponding application is started (S903). The application can be verified by querying a local or remote server, as described above. 8 and 9, when the application information is not received through the broadcast stream, the second device may identify and execute the application. In addition, these embodiments are those in which a broadcast stream is not received, i.e., a selected program is a recorded program, or a device in which a command is received is another type of image reproducing device (e.g., a DVD player) other than the broadcast receiving device. If so, it can be used.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

201: Tuner / Decoder Module 202: Control Interface Module
203: control module 801: receiving interface module
802: network interface module 803: control module

Claims (18)

In the broadcast receiving apparatus capable of communicating with a second device,
A receiving module for receiving application information related to the selected program; And
A control module for receiving a control command from a control device,
The control module includes:
And when the second device is registered to communicate with the broadcast receiving device, controlling the second device to execute an application identified by the application information in response to a preset control signal. . The method of claim 1,
The identified application is a first application,
The control module includes:
And when the broadcast receiving device executes a second application related to the first application, controlling the second device to execute the application identified by the application information. The method of claim 1,
The control module includes:
If the second device receives information about whether the second application can execute the identified application from the second device, and determines that the second device can execute the identified application, executing the identified application. And controlling the second device to control the second device. The method of claim 1,
The control module includes:
And registering the second device in response to a registration request signal received from the second device. 5. The method of claim 4,
The control module includes:
When the second device is registered, if a message is periodically received from the second device to maintain communication with the second device, and if a new message has not been received for a predetermined time after the previous message is received, And determining that the second device has withdrawn. The method of claim 1,
The application information includes version information that defines a version of the identified application to be executed in the second device,
The control module includes:
And transmitting the version information to the second device. The method of claim 1,
The receiving module receives the application data through a broadcast stream, the application data includes an application ID for identifying the application and additional data for delivering the application,
The control module determines whether the second device executes an application identified by the application ID, and when the second device executes an application identified by the application ID, application data to the second device. Broadcast receiving apparatus, characterized in that for transmitting. The method of claim 1,
The selected program is a recorded program stored in a storage module accessible by the broadcast receiving device,
And the application information is one of recorded information received through a broadcast stream and information recorded when the selected program is recorded. A device capable of communicating with a broadcast receiving device,
A reception interface module for communicating with the broadcast reception device;
A control module for checking a program currently selected by the broadcast receiving device in response to a command received from the broadcast receiving device through the receiving interface module, and checking an application related to the selected program to execute the checked application; Device containing. 10. The method of claim 9,
The control module includes:
Confirming the selected program by comparing audio and video data of the selected program with known audio and video data for a plurality of programs, or receiving program information from the broadcast receiving apparatus to select the selected program based on the received program information. Device for identifying. An application control method of a broadcast reception device capable of communicating with a second device,
Receiving application information related to the selected program;
Receiving a predetermined control signal from a control device; And
Controlling the second device to execute an application identified by the application information in response to the preset control signal when the second device is registered to communicate with the broadcast receiving apparatus; Application control method. 12. The method of claim 11,
The identified application is a first application,
Wherein the controlling comprises:
And when the broadcast receiving device executes a second application related to the first application, controlling the second device to execute the application identified by the application information. 12. The method of claim 11,
Wherein the controlling comprises:
Receiving dissociation information from the second device as to whether the second device can execute the identified application; And
If it is determined that the second device can execute the identified application, controlling the second device to execute the identified application. 12. The method of claim 11,
Registering the second device in response to a registration request signal received from the second device. 15. The method of claim 14,
If the second device is registered, periodically receiving a message from the second device to maintain communication with the second device;
And determining that the second device has withdrawn if a new message has not been received for a preset time since the previous message was received. 12. The method of claim 11,
The application information includes version information that defines a version of the identified application to be executed in the second device,
And transmitting the version information to the second device. 12. The method of claim 11,
Wherein the receiving comprises:
Receive application data through a broadcast stream,
The application data includes an application ID for identifying an application and additional data for delivering the application,
Wherein the controlling comprises:
It is determined whether the second device executes the application identified by the application ID, and when the second device executes the application identified by the application ID, transmitting application data to the second device. Application control method characterized in that. 12. The method of claim 11,
The selected program is a recorded program stored in a storage module accessible by the broadcast receiving device,
And wherein the application information is one of recorded information received through a broadcast stream and information recorded when the selected program is recorded.


KR1020130029960A 2012-05-04 2013-03-20 Broadcast receiving apparatus and method for controlling applicationm, and device KR20130124183A (en)

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EP13163757.1A EP2660998A3 (en) 2012-05-04 2013-04-15 Broadcast receiving apparatus and method for controlling application, and device
US13/869,153 US20130298169A1 (en) 2012-05-04 2013-04-24 Broadcast receiving apparatus and method for controlling application, and device
CN201310161245.8A CN103384350B (en) 2012-05-04 2013-05-03 For controlling using the apparatus for receiving broadcasting and method with device

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GB1207890.3A GB2492443B (en) 2011-06-30 2012-05-04 Launching an application on a secondary device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015108319A1 (en) * 2014-01-14 2015-07-23 엘지전자(주) Method and apparatus for managing connection between broadcasting reception device and another device which are connected through network

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015108319A1 (en) * 2014-01-14 2015-07-23 엘지전자(주) Method and apparatus for managing connection between broadcasting reception device and another device which are connected through network
US10554745B2 (en) 2014-01-14 2020-02-04 Lg Electronics Inc. Method and apparatus for managing connection between broadcasting reception device and another device which are connected through network

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