KR20110115192A - Apparatus and method for changing a channel using scene index information - Google Patents

Apparatus and method for changing a channel using scene index information Download PDF

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Publication number
KR20110115192A
KR20110115192A KR1020100034541A KR20100034541A KR20110115192A KR 20110115192 A KR20110115192 A KR 20110115192A KR 1020100034541 A KR1020100034541 A KR 1020100034541A KR 20100034541 A KR20100034541 A KR 20100034541A KR 20110115192 A KR20110115192 A KR 20110115192A
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KR
South Korea
Prior art keywords
broadcast
index information
scene index
channel
scene
Prior art date
Application number
KR1020100034541A
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Korean (ko)
Inventor
최기호
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(주)휴맥스
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Publication date
Application filed by (주)휴맥스 filed Critical (주)휴맥스
Priority to KR1020100034541A priority Critical patent/KR20110115192A/en
Publication of KR20110115192A publication Critical patent/KR20110115192A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/44504—Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control

Abstract

The channel switching apparatus and method using the scene index information according to the present invention, for example, in various types of digital broadcast receivers, such as set-top box (STB) or digital television (D-TV), other than the channel currently being watched Scene index information for each broadcasting program provided in real time through a channel can be retrieved through a video or audio scan operation, or received from an IP server connected through a network, and currently viewed. If any one scene index information is selected and the scene index information is selected, the user switches to the broadcast channel associated with the scene index information, thereby allowing the user to continue to watch any one broadcast channel while being broadcast through the other channel. Real-time scenes for broadcast programs can be easily identified through the index, and the user can Is able to be switched easily select a broadcast channel that is broadcasting the scene.

Description

Channel switching apparatus and method using scene index information {Apparatus and method for changing a channel using scene index information}

The present invention relates to a channel switching apparatus and method using scene index information applied to various types of digital broadcast receivers, for example, set-top box (STB) or digital television (D-TV).

In general, various types of digital broadcast receivers such as a set top box (STB) or a digital television (D-TV) are widely used. For example, as shown in FIG. 1, in the set top box 200 After decoding the broadcast program of the MPEG data stream received through the digital broadcast channel into audio and video data, the display is output through the television 100.

In addition, the set-top box 200 may be equipped with a personal video recorder (PVR) function for recording a digital broadcast program in a large capacity storage such as a hard disk (HDD), as shown in FIG. Likewise, the connection may be connected to an IP server 400 (or an IP-TV server) that provides various broadcast programs and contents through a network 300 such as the Internet.

The IP server 400 may be connected to a plurality of clients 500 1 to 500 n through the network 300. For example, the IP server 400 may be connected to the set top box 200. When a user who is watching a program of one broadcasting channel wants to check a program of another broadcasting channel, the user inputs a channel up / down key to switch to another broadcasting channel, or the program information EPG: Electronic Program Guide) information is displayed on a television screen to identify programs of other broadcast channels.

However, when switching to another channel through the channel up / down operation as described above, it is not possible to continuously watch the broadcasting program currently being watched, as well as the operation time of the channel up / down key and the waiting time according to the channel switching. As a result, the user may feel uncomfortable.

In addition, even if the programs of other broadcasting channels are checked through the EPG information as described above, the scene of the broadcasting programs provided through each broadcasting channel cannot be accurately identified. There is a problem in that the broadcast channel provided cannot be easily tuned in.

The present invention, for example, in various types of digital broadcast receivers, such as a set-top box (STB) or digital television (D-TV), to each broadcast program provided in real time through a channel other than the channel currently being watched. It is an object of the present invention to provide a channel switching apparatus and method using scene index information for enabling a user to easily switch between desired channels by using scene index information.

The channel switching method using the scene index information according to the present invention comprises the steps of: displaying scene index information for other broadcast channels on a broadcast viewing screen while watching any one broadcast channel; And if any one of the displayed scene index information is selected, switching to a broadcast channel associated with the scene index information.

The scene index information is a keyword representing a scene of each broadcast program being broadcast in real time through the other broadcast channels, and is displayed together with a corresponding channel number.

In the first step, after scanning video or audio of each broadcast program received in real time through the other broadcast channel, the scene index information is searched in a scene index database that is stored and managed in advance, and the broadcast is performed. Characterized in that displayed on the viewing screen,

In addition, the scene index database stores the video feature data of the outline, brightness, and color components of the subject, and the indexes of the keywords corresponding thereto, and the audio feature data of the frequency, amplitude, and pattern components of the audio, and It is characterized in that the index of the keyword is stored in association,

The first step may include receiving scene index information from an IP server connected through a network and displaying the scene index information on the broadcast viewing screen.

The IP server may provide real-time scene index information of each broadcast channel received from a plurality of clients connected through a network to a digital broadcast receiver connected through the network.

In addition, a channel switching apparatus using scene index information according to the present invention comprises: tuning means for tuning a broadcast channel; Processing means for signal-processing the program data of the tuned broadcast channel into audio and video; Generating means for generating an OSD image of scene index information for broadcast channels other than the tuned broadcast channel; And a control means for switching to a broadcast channel associated with the scene index information when any one scene index information in the OS video is selected.

The scene index information is a keyword representing a scene of each broadcast program that is being broadcast in real time through the other broadcast channels, and is displayed as an OSD image together with a corresponding channel number.

In addition, scanning means for scanning the video or audio of each broadcast program received in real time through the other broadcast channel; And retrieving means for retrieving scene index information corresponding to the scan result data in a scene index database previously stored and managed.

In addition, the scene index database stores the video feature data of the outline, brightness, and color components of the subject, and the indexes of the keywords corresponding thereto, and the audio feature data of the frequency, amplitude, and pattern components of the audio, and It is characterized in that the index of the keyword is stored in association,

The apparatus may further include communication means for receiving the scene index information from an IP server connected and connected through a network.

The IP server may provide real-time scene index information of each broadcast channel received from a plurality of clients connected through a network to a digital broadcast receiver connected and connected through the network.

The channel switching apparatus and method using the scene index information according to the present invention, for example, in various types of digital broadcast receivers, such as set-top box (STB) or digital television (D-TV), other than the channel currently being watched Scene index information for each broadcasting program provided in real time through a channel can be retrieved through a video or audio scan operation, or received from an IP server connected through a network, and currently viewed. If any one scene index information is selected and the scene index information is selected, the user switches to the broadcast channel associated with the scene index information, thereby allowing the user to continue to watch any one broadcast channel while being broadcast through the other channel. Real-time scenes of broadcast programs can be easily identified through the index, and user resources Is able to be switched easily select a broadcast channel that is broadcasting the scene.

1 illustrates an embodiment in which a typical set-top box is connected to a television and an IP server.
Figure 2 shows the configuration of an embodiment for a set-top box to which the present invention is applied,
3 illustrates an embodiment of a video scan operation in a set-top box to which the present invention is applied.
4 illustrates an embodiment of an audio scan operation in a set-top box to which the present invention is applied.
5 illustrates an embodiment of a scene index database stored and managed according to the present invention.
6 illustrates an embodiment in which scene index information is superimposed on a broadcast screen according to the present invention.
7 illustrates an embodiment in which real-time scene index information is collected from a plurality of clients according to the present invention.
8 illustrates an embodiment of downloading and displaying scene index information from an IP server according to the present invention.
9 illustrates an embodiment of client management information stored and managed in an IP server to which the present invention is applied.

Hereinafter, exemplary embodiments of a channel switching apparatus and method using scene index information according to the present invention will be described in detail with reference to the accompanying drawings.

First, the channel switching apparatus and method using the scene index information according to the present invention, for example, applied to various types of digital broadcast receivers, such as a set-top box (STB) or digital television (D-TV) for receiving digital broadcasts do.

On the other hand, in the set-top box STB to which the present invention is applied, as shown in FIG. 2, for example, the tuner 20, the demux 21, the MPEG decoder 22, and the A / V processor 23. , Microcomputer 24, OSD generator 25, memory 26, storage 27, network module 28, scanner 29, scene index searcher 30, and scene index database 31. Etc. are comprised.

In addition, the microcomputer 24 operates and controls the tuner 20 and the demux 21 according to a user's key input, and selects any one broadcast channel, which is widely known in the field of digital broadcasting technology. As described above, a plurality of services (SVCs) are multiplexed in one transponder (TP) tuned by the tuner 20, and one service corresponds to one broadcast channel.

For example, when a user selects a first channel of a KBS broadcasting station, the microcomputer 24 operates and controls the tuner 20 to select a first transponder TP1 corresponding to the KBS broadcasting station. In addition, a first service corresponding to the first channel CH1 among a plurality of services (for example, SVCs 1 to 8) multiplexed on the first transponder TP1 by operating the demux 21 by operation control. (SVC1) is selected.

The MPEG decoder 22 decodes the broadcast program data stream of the first channel CH1 output through the demux 21 to decode audio and video data to the A / V processor. In addition to outputting to (23), various additional information (for example, EPG information) included in the broadcast program data stream is transmitted to the microcomputer (24).

Meanwhile, the A / V processor 23 processes the audio and video data into audio and video signals, and then outputs the output to an external device such as the television 100. The OSD generator 25 Various On Screen Display (OSD) images generated by the display are superimposed on the video signal of the broadcast program.

In addition, in the microcomputer 24, for example, when a recording operation is requested by a user, a broadcast program data stream of the first channel CH1 tuned by the tuner 20 and the demux 21 is selected. A series of PVR operations are recorded to the storage 27 such as a hard disk.

In addition, when the scene index (Scene Index) channel switching operation according to the present invention is requested, the microcomputer 24 operates and controls the demux 21 to simultaneously tune and maintain the first channel. The broadcaster of the second channel CH2 corresponding to other services in the first transponder received through the tuner 20, for example, the second service, is output to the scanner 29.

Meanwhile, the scanner 29 may include, for example, a video filter and an audio filter. As shown in FIG. 3, the scanner 29 receives in real time through the second channel. Scans the video frames of a predetermined section (eg, CH2_Video Frame # m ~ # m + k), and the edge component, luminance component, and color of the subject included in the current scene. A series of video scan operations for extracting components and the like are performed.

The scene index retrieval unit 30 compares the extracted contour, luminance, and color components of the extracted subject with video feature data stored and managed in the scene index database 31, and then matches them. Scene index information associated with the video feature data, for example, scene index information of the keyword "Airplane" is searched and output to the microcomputer 24.

In addition, the microcomputer 24 operates the demux 21 to control broadcast services of a third channel corresponding to other services in the first transponder, for example, a third service. The output is (29).

In addition, as shown in FIG. 3, the scanner 29 scans video frames (eg, CH3_Video Frame #n to # n + k) of a predetermined section received in real time through the third channel. A series of video scan operations for extracting outline components, luminance components, and color components of the subject included in the current scene are performed.

In addition, the scene index retrieval unit 30 compares the contour, luminance, and color components of the extracted subject with video feature data stored and managed in the scene index database 31, and then matches the same. Scene index information associated with the video feature data, for example, scene index information of a keyword "Sheep" is searched for and output to the microcomputer 24.

On the other hand, the scanner 29, for example, as shown in Figure 4, by scanning the audio signal (for example CH2_Audio) of a predetermined section received in real time through the second channel, corresponding to the current scene A series of audio scan operations for extracting a frequency component, an amplitude component, and a pattern component of the audio are performed.

The scene index retrieval unit 30 compares the frequency, amplitude, and pattern components of the extracted audio with audio feature data stored and managed in the scene index database 31, and then matches them. Scene index information stored in association with audio feature data, for example, scene index information of a keyword "Airplane" is searched and output to the microcomputer 24.

In addition, as illustrated in FIG. 4, the scanner 29 scans an audio signal (eg, CH3_Audio) in a predetermined section received in real time through a third channel, and detects a frequency component of audio corresponding to the current scene. A series of audio scan operations are performed to extract the amplitude, amplitude, and pattern components.

The scene index retrieval unit 30 compares the frequency, amplitude, and pattern components of the extracted audio with audio feature data stored and managed in the scene index database 31, and then matches them. Scene index information associated with audio feature data, for example, scene index information of a keyword "Sheep" is searched and output to the microcomputer 24.

On the other hand, the scene index database 31 may be stored and managed in a storage 27 such as, for example, a hard disk, or may be managed and stored in a recording medium separate from the storage 27. As described above, in the scene index database, video feature data such as a subject outline, luminance, and color components in a video frame and scene index information of a keyword corresponding thereto are stored in the form of a look-up table.

The scene index database stores audio feature data such as audio frequency, amplitude, and pattern components, and scene index information of keywords corresponding thereto in a look-up table. The video feature data and audio feature data Is information set based on various experiment result values previously performed, and various additional components other than the above components may be further included and recorded.

On the other hand, the microcomputer 24, if the scene index information for the other broadcast channels that are provided in real time through the above-described process, the operation control the OSD generating unit 25, Scene index information is superimposed on one channel broadcast program video.

For example, as shown in FIG. 6, since the scene index information of the second to fifth channels is displayed in a list form in the broadcast screen of the first channel CH1 that the user is watching, the user may select the scene. With reference to the index information, it is possible to easily check what scene broadcast programs are currently provided through other channels.

In the microcomputer 24, for example, as shown in FIG. 6, when the user selects “Airplane” of the second channel among the scene index information, the demux 21 is operated. By controlling, the broadcast program of the second channel is tuned. In this case, the scene index information (for example, Men) for the first channel is searched for, and the first channel is displayed in the broadcast screen of the second channel CH2. And scene index information of the third to fifth channels are displayed in a list form.

In addition, when the user selects “Sheep” of the third channel among the scene index information, the microcomputer 24 operates to control the demux 21 to select a broadcast program of the third channel. In this case, the scene index information for the first channel and the second channel is searched again in real time, so that the first and second channels, and the fourth and fifth channels within the broadcast screen of the third channel CH3. Scene index information of the channel is displayed in a list form.

Meanwhile, as described above with reference to FIG. 1, the scene index information may be received from an IP server 400 that provides various broadcast programs and content through a network 300 such as the Internet. In the IP server 400, a plurality of clients (500 1 ~ 500 n ) is connected and connected, the user of each client, while watching a broadcast program of different channels, When the scene index information is input to the IP server 400, the IP server 400 collects and analyzes the scene index information to generate real-time scene index information.

For example, as shown in FIG. 7, while a user of the first client Client1 watches a broadcast program of the first channel CH1, a web window of a scene index input mode may be opened. When the keyword "Men" is input in the activated state, the IP server 400 receives the keyword "Men" as real-time scene index information for the first channel.

In addition, when a user of the second client Client2 enters the keyword “Airplane” through a web window of a scene index input mode while watching a broadcast program of the second channel CH2, The IP server 400 receives the keyword "Airplane" as real-time scene index information for the second channel.

When the user of the third client Client3 enters the keyword “Sheep” through the web window of the scene index input mode while watching a broadcast program of the third channel CH3, The IP server 400 receives the keyword "Airplane" as real-time scene index information for the third channel.

Meanwhile, the IP server 400 collects and analyzes real-time scene index information received from a plurality of clients through the above process, and transmits the information to the set-top box 200 connected through a network. For example, in the set-top box 200 that receives the real-time scene index information, an icon of a unique shape indicating this is displayed on the screen.

When the icon is selected by the user, real-time scene index information received from the IP server 400 is displayed in a list form. For example, as illustrated in FIG. 8, the scene index download ( Scene index download) icon (for example, I) is superimposed on the broadcast screen of the first channel.

In addition, when the icon is selected by the user, the first channel currently being viewed among the real-time scene index information downloaded from the IP server 400 through the network module 28 in the microcomputer 24 of the set-top box. Operation of the OSD generating unit 25 is controlled so that real-time scene index information of other channels except for is superimposed on the broadcast screen of the first channel.

For example, as shown in FIG. 8, when “Airplane”, which is scene index information for the second channel, is selected by the user, as described above, the demux 21 is operated and controlled. A channel switching operation for tuning the second channel CH2 is performed.

In addition, when switching to the second channel through a series of processes as described above, for example, as shown in Figure 8, the broadcast screen of the second channel, "Airplane +" or "Airplane-" real-time Scene index information may be displayed, and "Airplane +" may represent the start scene of the video section in which the plane is displayed, and "Airplane-" may represent the end scene of the video section in which the plane is displayed.

On the other hand, in the IP server 400, for example, as shown in FIG. 9, as client management information, the number of times of input of user information and scene index information for each client, and accordingly By accumulating and storing the accumulated point values, the user is given a lot of points to the user who inputs a lot of real-time scene index information.

When a fee is charged to a user who downloads and uses the real-time scene index information, the amount corresponding to the point is reduced to actively recommend and induce the input and use of the real-time scene index information.

For reference, as described above with reference to FIG. 3, a video scan operation of extracting contours, luminance, color components, etc. of a subject included in a video frame is a well-known technique widely used in the field of image filtering technology. As described above with reference to FIG. 4, the audio scan operation of extracting the frequency, amplitude, pattern component, etc. of the audio is a well-known technique widely used in the voice filtering technology field, and thus a detailed description thereof is omitted.

On the other hand, the keyword of the scene index information, for example, not only the subject displayed on the screen, but also various parts of the place and the background may be utilized, and the place may include a country, a city, a region name, or the like. The names of common places can be subdivided into parks, jungles, forests, schools, post offices, police stations, and the like.

In addition, two or more scene indexes for each channel may be set. When the scene index information for each channel is provided by the IP server 400, for example, [Ch 11] 12: 00 ~ 13:00 Departures Video Travel & Movies & Movies & Park Kyung-chu & Yang Seung-eun & Kang Min-gu, 12: 20-12: 30 It is possible to manage and provide valid time information for the scene indexes of.

Also, based on the valid time information, valid scene indexes are provided or scene indexes that have elapsed time are deleted. If there is no time information, keywords collected for the corresponding channel from the beginning to the end of the program are displayed. Search by using or delete after a certain time (for example, 10 minutes).

On the other hand, in the case of an EPI paper provided by a broadcasting station, a general description of a program being broadcast on a channel is provided. For example, the above valid time information and a plurality of scene indexes are added to the EPI paper in the form of a table. When transmitting at one time, the set-top box can receive and provide the same to the user. Also, the IP server can variously transmit valid time information and a plurality of scene indexes in a table form.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

100: television 200: set-top box
300: network 400: IP server
500: Client 20: Tuner
21: Demux 22: MPEG Decoder
23: A / V Processor 24: Microcomputer
25: OSD generator 26: memory
27: storage 28: network module
29: scanner 30: scene index search unit
31: scene index database

Claims (12)

Displaying scene index information for other broadcast channels on a broadcast viewing screen while watching any one broadcast channel; And
And if any one of the displayed scene index information is selected, switching to a broadcast channel associated with the scene index information. 2. The method of claim 1,
The scene index information is a keyword representing a scene of each broadcast program that is being broadcast in real time through the other broadcast channels, and is displayed together with a corresponding channel number. The method of claim 1,
In the step 1, after scanning the video or audio of each broadcast program received in real time through the other broadcast channel, the scene index information is searched in the scene index database stored and managed in advance, and the broadcast viewing screen And a channel switching method using scene index information. The method of claim 3, wherein
In the scene index database, video feature data of a subject's outline, luminance, and color components, and indexes of keywords corresponding thereto are stored in association with each other, and audio feature data of frequency, amplitude, and pattern components of audio and keywords corresponding thereto are stored. Channel switching method using scene index information, characterized in that the index is stored in association. The method of claim 1,
In the step 1, scene index information is received from an IP server connected through a network and displayed on the broadcast viewing screen. 6. The method of claim 5,
The IP server provides real-time scene index information of each broadcast channel received from a plurality of clients connected and connected through a network to the digital broadcast receiver connected and connected through the network. Channel switching method. Tuning means for tuning the broadcast channel;
Processing means for signal-processing the program data of the tuned broadcast channel into audio and video;
Generating means for generating an OSD image of scene index information for broadcast channels other than the tuned broadcast channel; And
And a control means for switching to a broadcast channel associated with the scene index information when any one scene index information in the OS video is selected. The method of claim 7, wherein
The scene index information is a keyword representing a scene of each broadcast program that is being broadcast in real time through the other broadcast channels, and is displayed as an OSD image together with a corresponding channel number. Switching device. The method of claim 7, wherein
Scanning means for scanning video or audio of respective broadcast programs received in real time through the other broadcast channel; And
And retrieving means for retrieving scene index information corresponding to the scan result data in a scene index database which is stored and managed in advance. The method of claim 9,
In the scene index database, video feature data of a subject's outline, luminance, and color components, and indexes of keywords corresponding thereto are stored in association with each other, and audio feature data of frequency, amplitude, and pattern components of audio and keywords corresponding thereto are stored. Channel switching apparatus using scene index information, characterized in that the index is stored in association. The method of claim 7, wherein
And channel communication means for receiving the scene index information from an IP server connected and connected through a network. 12. The method of claim 11,
The IP server provides real-time scene index information of each broadcast channel received from a plurality of clients connected and connected through a network to the digital broadcast receiver connected and connected through the network. Channel switching device.
KR1020100034541A 2010-04-15 2010-04-15 Apparatus and method for changing a channel using scene index information KR20110115192A (en)

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