JP2002344938A - Video data distribution system and video data distribution method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video data distribution system in a service distributing video contents such as education purpose video to viewer terminals that can grasp indigestibility of the contents on the basis of a response especially from viewers. SOLUTION: The video data distribution system is provided with a detection means (1) that distributes video data to a viewer terminal (4c) and with a management server 6, and the management server 6 acts like a reception means that receives information denoting an indigestible point of the video data received from the viewer terminal (4c) via a network (5) and like a storage means that stores the information received by the reception means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a video data distribution system and a video data distribution method. For details, for example, contents (video data) such as educational videos
To a TV or P owned by the viewer via the network
C related to the service to distribute to video display terminals such as
Based on the response from the viewer who viewed the content, a video that allows the user to understand the difficulty of understanding the content, improve the content using that information, or respond to a question from the viewer regarding the content. The present invention relates to a data distribution system and a video data distribution method.

[0002]

2. Description of the Related Art In recent years, the development of information infrastructure such as the broadband Internet and the digitalization of television broadcasting has been remarkable, and this has made it easier to distribute large-capacity data to ordinary households. Educational services that allow you to watch lecture videos from universities
Various video data distribution services that require a high-speed and large-capacity communication environment have been provided in various places.

In order to provide such services on the Internet, a user (personal computer (P
The operator (C)) uses a PC connected to the Internet, or, in the case of providing via a television broadcasting network, the user (viewer) receives the service using a television receiving terminal. .

[0004]

By the way, video data such as an educational video is devised in its story development and video content so that the educational effect intended by the distribution side can be obtained. There is a problem in that it is difficult to produce video data (educational video) that can be understood by all viewers because the degree of understanding of the viewers varies. For this reason, on the viewer side, depending on the quality of the video data to be distributed, unclear points or doubts may occur in the content during distribution (reproduction).

[0005] In such a case, since the viewer views the contents of the video data while having questions, it is expected that the effect of education or the like intended by the producer (distribution) side cannot be sufficiently achieved. Is done.

Accordingly, the problem to be solved by the present invention is to provide a video data distribution system for distributing video-type contents such as educational videos to a video display terminal of a viewer. Accordingly, to provide a video data distribution system and a video data distribution method capable of grasping the difficulty of understanding the content, improving the content utilizing the information, or answering a question from a viewer. It is in.

[0007]

According to the present invention, there is provided a distribution means for distributing video data to a video display terminal, and a receiving means for receiving information indicating a response to the video data transmitted from the video display terminal via a network. Means, storage means for storing information received by the receiving means in association with the video data, and distribution control means for controlling distribution of the video data based on the storage content of the storage means. .

According to the present invention, the video data is distributed to the video display terminal at the viewer's home, and the distribution data (video data) is viewed at the viewer's home. Then, when an unclear portion is recognized in the viewing content, information indicating a response to the video data is transmitted from the video display terminal in the viewer's home, and the information is stored in association with the video data, Distribution of the video data is controlled based on the stored contents.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a conceptual diagram of a system configuration according to the present embodiment. In this figure, a video data distribution system (provider) 1 includes a distribution server 11,
Standard CT connected to database 12 and public line 5
I (Computer TelephonyInter)
A management server 13 having an architecture and a database 14. The distribution server 11 transmits video data such as an educational video (for example,
Educational, lecture or class videos. Hereinafter, it is referred to as “educational video”. ) Database 1
2 and connected to a broadcasting station 2 and a terrestrial broadcasting antenna 2 according to a predetermined distribution schedule.
b, or a user home 4 of a contractor on a digital television broadcasting network via a satellite broadcasting antenna 2a and a satellite 3.
Deliver to. Further, the management server 13 stores the ID information based on the event information transmitted from the user 4a, the title of the educational video distributed at that time, and the number of the distribution scene in association with each other in accordance with a process described later. 14.

The user home 4 is provided with a remote controller 4b operated by a user 4a who is a viewer of the educational video and a television receiver 4c (video display terminal). A wave receiving antenna 4e is arranged. The user 4a uses the remote controller 4b
By operating to adjust the receiving channel of the television receiver 4c, a general broadcast program such as a public broadcast can be viewed on the television receiver 4c, and at a predetermined date and time corresponding to the above distribution schedule. By adjusting to the specific reception channel, the educational video distributed from the distribution server 11 can be viewed on the television receiver 4c.

Here, when a specific operation is performed with the remote controller 4b while watching the educational video, the television receiver 4c is connected to the call center (not shown) of the video data distribution system 1 via the public line network 5. ) And to the management server 13. At this time, predetermined information is transmitted from the television receiver 4 c to the management server 13. Here, the viewer's question or opinion includes information indicating that there is a part that is difficult to understand in the content of the distributed educational video, and, for example, the remote controller 4b indicates “do not understand”. When a button is provided, the predetermined information to be transmitted includes event information indicating that the button has been pressed, and ID information indicating the source of the event information (user 4a or television receiver 4c). ).

That is, when the user 4a finds a part that is difficult to understand while watching the educational video on the television receiver 4c, when the user presses the "don't understand" button on the remote controller 4b,
The predetermined information (event information and ID information) is transmitted from the television receiver 4c to the management server 13. When receiving the predetermined information, the management server 13 acquires the title of the educational video being distributed at that time and the number of the distribution scene (hereinafter, referred to as “current distribution scene”) from the distribution server 11, and obtains the ID information. Is stored in the database 14 in association with.

When an educational video titled "How to operate a personal computer" is distributed from the distribution server 11 for convenience, the television receiver 4c of the user home 4
The educational video received via the broadcasting station 2 or the satellite 3, that is, the “operation method of the personal computer” is reproduced and displayed, and the user 4 a learns the operation method of the personal computer by watching the contents. can do. If the user finds a part that is difficult to understand during the learning, for example, a part where the demonstration is too early to make the operation procedure easy to understand, the user 4a uses the remote controller 4 at hand.
Press the "I do not understand" button in b, and then repeat the button operation when a similar part is found.

In response to the button operation, the management server 13 responds to the button operation by providing the title of the educational video (in this example, “operating method of a personal computer”), the current distribution scene number at the time of the button operation, and The ID information and the like are stored in the database 14 in association with each other.

Accordingly, the database 14 sequentially accumulates and stores information on the difficulty of understanding the educational video determined by each user 4a. Through such processing, the creator of the educational video can examine the stored information to appropriately grasp which part of the distributed educational video includes an incomprehensible part, and It is possible to improve the comprehension by recreating the target educational video, or to reflect it in the editing policy of other educational videos to be produced thereafter.

If the personal computer 7b at the creator's house 7 can access the management server 13 via the public line network 5, the creator 7a can now use the personal computer 7b to distribute the data. It is preferable because it is possible to know the information of the difficulty of the educational video as it is at home and to examine in advance which part of the educational video and how to improve it.

FIG. 2 is a flowchart when the above system is used. FIG. 2A is a flowchart of a service exchanged between the user home 4 and the video data distribution system 1.
(B) shows a flow chart of a service exchanged between the producer home 7 and the video data distribution system 1, respectively.

In FIG. 2A, for example, the video data distribution system 1 distributes an educational video to the user's home 4 as video data to be distributed (step S11), and a user (viewer) who views the educational video. It is determined whether or not the event information and the ID information have been detected by the detection of the pressing of the “unknown” button of the remote controller 4b by the 4a (step S12). If the reception is detected, the title of the educational video being distributed at that time and the number of the current distribution scene are acquired from the distribution server 11 (step S13), and the acquired information is associated with the ID information in the database. 14 (step S1
4).

In FIG. 2B, when an access from the creator's house 7 is detected in the standby state (step S15) (step S16), in response to the detection, an educational video ( The information registered in step S14 is read from the database 14 in association with the video data), and transmitted together with statistical information such as audience rating (step S17).

According to this, by simply pressing the "I do not understand" button of the remote controller 4b while the user 4a is watching the instructional video, the question points of the educational video can be registered in the database 14 and the class video can be registered. Creator 7
A simply accesses the management server 13 using the personal computer 7b, and displays the above-mentioned question information on the display device of the personal computer 7b to know which part of the educational video is difficult to understand. It can be used for subsequent production.

In the above system, the user watches the educational video using the television receiver. However, the present invention is not limited to this. For example, FIG.
As shown in FIG.
b can be set up and used to distribute and view educational videos (video data). That is, the personal computer 8b can be connected to the distribution server 11 via the public line network 5, and the educational videos distributed from the distribution server 11 can be downloaded to the personal computer 8b and displayed.
Further, when a question arises in the educational video being distributed by the user 8a, pressing a specific key on the keyboard of the personal computer 8b (a key corresponding to the "Unknown" button on the remote controller 4b in the above system) causes the relevant educational video to be pressed. May be transmitted to the management server 13 indicating that there is a part that is difficult to understand.

In this manner, the user 8a can register the question points of the educational video in the management server 13 only by pressing the specific key of the keyboard of the personal computer 8b while watching the educational video, The creator 7a of the educational video is a personal computer 7
By simply accessing the management server 13 using “b”, the above information can be displayed on the display device of the personal computer 7b so that it is possible to know which part of the educational video is difficult to understand and utilize it for subsequent production. can do.

As described above, in the video data distribution system according to the present embodiment, an educational video or the like is provided at a user's home by using a terrestrial television broadcasting network, a satellite television broadcasting network, or a public line network. Of the video data, and if a question or the like arises during the distribution of the video data, the user (viewer) uses the remote control operation or the keyboard operation to store information (event information) relating to the question using the management server. To be registered. Therefore, the creator of the video data can grasp points to be improved in the video data based on the information registered in the management server, and reflect it in an editing policy of the video data to be subsequently produced. Can be or
When redistributing the video data, it is possible to distribute the video data whose contents have been modified and the questions are eliminated.

The video data distribution system according to the present embodiment is not limited to the above description, and various modifications are possible. <First Modification> FIG. 4 is a conceptual diagram of a system configuration of a first modification. In this figure, an operator desk 9 is provided for answering a question from the user's house 4, and has a function as a call center. The operator desk 9 has an operator (respondent) 9a and a terminal 9b (having a help screen 9d).
And a telephone 9c.

When the operator 9a receives a question from the telephone 4f provided in the user home 4 on the telephone 9c, the operator 9a grasps which scene is displayed on the screen 4e of the terminal 4d of the user home 4 from the contents of the call. , The user requests the management server 13 to transmit the same screen as the screen 4e of the user home 4 by operating the terminal 9b.

FIG. 5 is a flowchart in the first modified embodiment. In this flowchart, a certain educational video is delivered to the user's home 4 (step S21), and it is determined whether or not the reception of the question from the user 4a by viewing the educational video is detected (step S22). When the distribution is completed without the reception of the question point being detected (step S29), the process is terminated. However, when the operator desk 9 determines that the reception of the question point is detected via the telephone 4f, the public line network 5, and the telephone 9c. First, after accessing the management server 13 (step S23), the user 4a
The same screen as the screen 4e is obtained from the management server 11 and the database 12 via the management server 13 (step S24), and the video content is further searched (step S2).
5). Then, it is determined whether the corresponding video content (video) has been read (step S26). If the corresponding video content has not been read, the help screen 9d of the terminal 9b is determined.
Is displayed on the help screen 9 of the terminal 9b (step S28).
d to answer the question from the user 4a (step S27).

In this way, the help screen 9d of the operator desk 9 and the screen 4e of the user home 4 can be synchronized, and the operator 9a answers the question from the user 4a while watching the same screen as the user 4a. be able to. Therefore, an appropriate answer can be made.

<Second Modification> FIG. 6 is a conceptual diagram of a system configuration of a second modification. This modification is an improvement of the first modification described above. The contents of a call made between the user's house 4 and the operator desk 9 are monitored (voice recognition) by the management server 13 ', and all of the contents of the call are monitored. Alternatively, voice recognition of a predetermined keyword portion is performed to specify a display scene of the help screen 9d. For example, if the contents of the call include the words "... in the part of ...........", the speech is recognized by the management server 13 'and the part of ". Is retrieved, the database 14 is searched, the scene corresponding to "XXX" is extracted, transmitted, and displayed on the help screen 9d.

FIG. 7 is a flowchart in the second modified embodiment. In this flowchart, a certain educational video is delivered to the user home 4 (step S31), and it is determined whether or not the reception of the question from the user 4a by viewing the educational video is detected (step S32). When the distribution is completed without the reception of the question point being detected (step S33), the present process is terminated. When the operator desk 9 determines that the reception of the question point is detected using the telephone 4f, the public network 5, and the telephone 9c, The contents of the call are monitored (voice recognition) by the management server 13 'from the terminal 9b provided at the operator desk 9 (voice recognition) (step S34), and scene synchronization (search processing of the current distribution scene) is performed. The database 14 is searched, and a scene corresponding to the monitoring result is extracted from the database 12 (step S35). After transmitting this scene, the scene is displayed on the help screen 9d (step S3).
6) Answer the question from the user 4a using the telephone 9c while viewing the help screen 9d (step S37).

According to this, the synchronization between the screen 4e of the user home 4 and the help screen 9d of the help desk 9 can be automated, and the burden on the operator 9a can be reduced.

<Third Modification> FIG. 8 is a conceptual diagram of a third modification. In this modification, information (display information) of the question and answer is stored for each video data, and when the video data is redistributed, a predetermined tag (identification information) indicating that the question and answer information has been stored in the question and answer scene is stored. (Display content) is displayed, and when the tag is selected by the user 4a, the corresponding question and answer content is displayed. That is, as shown in FIG.
When an arbitrary scene (scene ○) is displayed at 0a,
When a question and answer has been performed in the past for the scene, a screen 10c having a predetermined tag 10b indicating that the question and answer information has been stored is displayed, and when the user 4a performs an operation of selecting the tag 10b, The screen 10e having the corresponding question and answer content 10d is displayed.

FIG. 9 is a flowchart in the third modification. In this flowchart, when a certain educational video is delivered to the user's home 4 (step S41), a reproduction process is executed at the user's home (step S42). Then, regarding the content of the educational video, it is sequentially determined whether or not there is a question link portion in the past with reference to the management server 13 and the database 14 (step S43), and a video having the question link portion is displayed. At a timing, a predetermined tag 10b indicating that there is a question is displayed (step S44). Thereafter, it is determined whether or not the tag 10b is selected and clicked by the user 4a (Step S).
45) When the click is detected, the corresponding question and answer content 10d is read from the database 12, the screen 10e is transmitted, and displayed until the display release is input (step S46). Thereafter, it is determined whether or not display cancellation has been detected (step S47). If not detected, the state of step S46 is maintained. If detected, it is determined whether or not distribution has ended (step S48). If the distribution ends, the present process ends. If not, the process returns to step S42. Also, in step S45, it is not detected that the click has been performed,
When the video in which the question link portion exists as it is is timed out (moving to the next video) (step S49), the predetermined tag 10b shown is deleted, and the process goes to step S48 to determine whether the distribution is completed.

According to this, when there is the same question,
There is no need for the operator 9a to answer, and the operator 9a
Burden can be reduced.

<Fourth Modification> FIG. 10 is a conceptual diagram of a fourth modification. In this modified embodiment, video data consisting of a plurality of scenes (scenes A to I for convenience) may be slightly shattered depending on important points (for example, points that are likely to be misunderstood or viewers' understanding). Etc.)
Can be branched into several explanation scenes. That is, in FIG. 10, a portion surrounded by a dashed line is an important portion.
With respect to 1 to F1, other branchable patterns (D2 to F1)
2, D3 to F3) are prepared.

FIG. 11 is a flowchart at the time of video editing and reproduction according to the fourth modification. For example, taking editing of an educational video as an example, first, editing is started (step S5).
1) When it becomes an important part (step S52), the part is divided into a plurality of patterns, for example, in FIG.
Scene D1 to F1, Scene D2 to F2, and Scene D
Recording is performed in three patterns of 3 to F3 (step S5).
3), the operation is repeated until the end of recording (step S5)
4). On the other hand, in the reproducing operation, when reproducing an important part (step S61), another pattern input is determined (step S62). When another pattern is selected by the user 4a, the pattern screen (scene D2 to F2 or scene) is selected. D3 to F3) are displayed (step S63), while if not selected, the default scenes (scenes D1 to F1) are displayed and repeated until the end of reproduction (step S64).

According to this, several explanation patterns can be prepared for important points, and the user 4a can select one of the explanation patterns, and can provide an appropriate explanation according to the degree of understanding of the user 4a.

<Fifth Modification> FIG. 12 is a conceptual diagram of a fifth modification. In this modification, an appropriate explanation video is newly produced by analyzing and examining past question tendencies and the like with respect to video data such as educational videos, and the explanation video is additionally edited to the original video data. is there. That is, in FIG.
Is original video data such as an educational video. By distributing the video data 110 and accumulating and saving questions and the like, it is examined which part is insufficiently understood and the like, and an appropriate explanation video 120 is newly produced. Then, the explanation video 120 is connected after the original video data 110 to form the video data 130 for redistribution.

FIG. 13 is a flowchart of the fifth modification. For example, taking distribution of an educational video as an example, statistical processing of a question for the educational video is performed (step S
71) Retake the educational video for the content with many questions (step S72). Then, the re-photographed portion is stored in the database 12 (step S73), and the reproduction information of the new video portion is written at the end of the original educational video (step S74). (Step S75), delivery is performed to execute reproduction of the additional video (Step S75)
76).

According to this, for the contents with many questions,
Appropriate additional video that complements the content can be produced and distributed after the original video, so that questions and the like of the original video can be resolved and clarity can be improved.

[0040]

According to the present invention, when an unclear portion in video data is recognized on the viewer side, information indicating the unclear point is transmitted from the video display terminal at the viewer's home to the server machine, Stored on the server machine. Therefore, for example, in a service for distributing contents such as educational videos to viewers' homes, it is possible to use a server machine to grasp, for example, the difficulty of understanding the contents based on responses from the viewers.

Alternatively, if the information held in the server machine can be disclosed to a creator or the like, the contents can be improved by utilizing the grasped information, or a question-and-answer session with the viewer can be made. Is made possible, it is possible to improve the service to the viewer.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a system configuration according to an embodiment.

FIGS. 2A and 2B are flow charts of the present embodiment, wherein FIG. 2A is a flow chart of a service exchanged between a user home 4 and a video data distribution system 1, and FIG. 3 is a flowchart of a service exchanged with the system 1.

FIG. 3 is a conceptual diagram of another system configuration of the present embodiment.

FIG. 4 is a conceptual diagram of a system configuration according to a first modification.

FIG. 5 is a flowchart of a first modified embodiment.

FIG. 6 is a conceptual diagram of a second modification.

FIG. 7 is a flowchart of a second modification.

FIG. 8 is a conceptual diagram of a third modification.

FIG. 9 is a flowchart of a third modification.

FIG. 10 is a conceptual diagram of a fourth modification.

FIG. 11 is a flowchart of a fourth modification.

FIG. 12 is a conceptual diagram of a fifth modification.

FIG. 13 is a flowchart of a fifth modification.

[Explanation of symbols]

Reference Signs List 1 video data distribution system 4c television receiver (video display terminal) 4d terminal (video display terminal) 5 public line network (network) 7b personal computer (video display terminal) 8b personal computer (video display terminal) 9c telephone (acquisition means) 9d Help screen (display means) 11 Distribution server (distribution means) 13 Management server (reception means, distribution control means, transmission means, acquisition means, recognition means, first redistribution means, second redistribution means, detection Means) 14 database (storage means, display information storage means)

Claims (6)

[Claims] 1. A distribution unit that distributes video data to a video display terminal; a reception unit that receives information indicating a response to the video data transmitted from the video display terminal via a network; and a reception unit that receives the information. Video data distribution characterized by comprising: storage means for storing the obtained information in association with the video data; and distribution control means for controlling the distribution of the video data based on the storage contents of the storage means. system. 2. The video data distribution system according to claim 1, further comprising a transmission unit configured to transmit a storage content of said storage unit to a creator of said video data via said network. 3. The video data distribution system according to claim 1, further comprising a display unit that displays the distributed video data in synchronization with the video display terminal that has transmitted the information indicating the response. 4. An acquiring unit for acquiring audio information related to the distributed video data, a recognizing unit for recognizing the audio information acquired by the acquiring unit, and redistributing the video data recognized by the recognizing unit. 2. The video data distribution system according to claim 1, further comprising a first re-distribution unit that performs the operation. 5. A display information storage means for storing display information related to video data to be redistributed, and identifying display contents indicating that the display information is included in the video data. A second redistribution means for redistributing the video data; a detection means for detecting a display request for the display information in response to the identification display content in the video data redistributed by the redistribution means; 2. The video data distribution system according to claim 1, wherein when the detection unit detects a display request for the display information, the display information is distributed instead of the video data. 6. A distribution step of distributing video data to a video display terminal; a reception step of receiving information indicating a response to the video data transmitted from the video display terminal via a network; A storage step of storing the received information in a database in association with the video data; and a distribution control step of controlling distribution of the video data based on the storage content of the storage step. Video data distribution method.