JP2018157412A - Broadcast system and content analysis apparatus - Google Patents

Abstract

An object of the present invention is to provide a viewing environment of a broadcast by allowing a viewer to grasp a broadcast of interest among past broadcasts in real time. A broadcast system according to an embodiment is a broadcast system including a content analysis device and a content distribution device, wherein the content analysis device sequentially analyzes broadcast content, and based on a result of the analysis, The content distribution apparatus sequentially generates metadata for notifying the receiver used by the viewer of a message indicating the content of the broadcast content from a point in time that is traced back a predetermined time and prompting the user to view the past broadcast content. The past broadcast content from the time point that is a predetermined time later than the current time is held, and the corresponding past broadcast content is distributed to the receiver notified of the metadata. [Selection] Figure 1

Description

  Embodiments described herein relate generally to a broadcast system and a content analysis apparatus.

  In recent years, TV broadcast viewers use TV receivers installed at home, etc., or receivers (such as mobile phones) having a 1Seg broadcast reception function, so that TV broadcast programs (broadcasts) Content).

  When viewing a program, the viewer selects a channel for broadcasting a desired program by checking a TV program guide published in a newspaper or the like, or selects a channel by so-called zapping and selects this channel. Watch programs broadcast on the selected channel.

JP 2008-005282 A JP 2007-305054 A

  In television broadcasting, for example, (1) Events that occurred in live broadcasting (for example, scoring scenes in sports broadcasts), (2) Events that occurred urgently, such as earthquake alerts, (3) Emergency news, etc. After the scene has been broadcast, the viewer may turn on the television and start watching this channel.

  If the viewer is in an environment where the corresponding channel can be selected and viewed during the broadcasts (1) to (3) above, even if the viewer wants to watch this broadcast, the broadcast has already ended. As a result, viewers miss the scene they want to see.

  As for past broadcast contents, it may be possible to record together with EPG (electronic program guide) at the time of broadcasting using a recording device other than the receiver. In order to find out the content that the user is interested in, it is necessary to reproduce each content or refer to the EPG, and the viewer cannot view the desired broadcast content in real time.

  The problem to be solved by the present invention is to provide a broadcasting system and a content analysis apparatus capable of providing a viewing environment of a broadcast by allowing viewers to grasp a broadcast of interest among the past broadcasts in real time. It is to be.

  The broadcast system in the embodiment is a broadcast system having a content analysis device and a content distribution device, and the content analysis device sequentially analyzes the broadcast content and goes back a predetermined time from the current time based on the result of the analysis. A message indicating the content of the broadcast content from the point in time is notified to the receiver used by the viewer, and metadata for prompting an operation for viewing the past broadcast content is sequentially generated. The past broadcast content from a point in time after a predetermined time is held, and the corresponding past broadcast content is distributed to the receiver notified of the metadata.

  The broadcast system in the embodiment sequentially analyzes broadcast content, and based on the result of the analysis, notifies the receiver of a message indicating the content of the broadcast content from a time point that is a predetermined time later than the current time, and past broadcast content The metadata for prompting the viewing operation is sequentially generated.

  According to the present invention, it is possible to provide a viewing environment of a broadcast by making a viewer grasp a broadcast of interest among past broadcasts in real time.

The figure which shows typically an example of the structure of the broadcast system in embodiment. The block diagram which shows an example of a function structure of the content analysis part of the content analysis apparatus of the broadcast system in embodiment. The figure which shows an example of the flow from broadcast to viewing of a retroactive program by the broadcast system in embodiment. The figure explaining an example of real-time metadata with respect to real-time broadcasting by the broadcasting system in an embodiment, and retroactive viewing. The flowchart which shows an example of the procedure from broadcast to viewing of a retroactive program by the broadcast system in the embodiment.

Hereinafter, embodiments will be described with reference to the drawings.
FIG. 1 is a diagram schematically illustrating an example of a configuration of a broadcast system in the embodiment.
As shown in FIG. 1, the broadcasting system in the embodiment includes a content analysis device 10, a content distribution device 20, and a viewer receiver 30.

  Based on the broadcast content (program) currently broadcast from a TV broadcast station by wire or wireless, the content analysis device 10 displays real-time metadata (index information) indicating the broadcast content of the broadcast content as a short message, for example. Sequentially generated and distributed to a broadcasting station via a communication network, for example. When the broadcast station receives this real-time metadata, it broadcasts it as, for example, a data broadcast. The receiver 30 can receive the broadcasted real-time metadata. Thereby, the real-time metadata is notified to the receiver 30. As described above, the content analysis device 10 sequentially generates real-time metadata, so that information indicating each broadcast content that changes every moment can be generated and notified to the receiver 30 in real time.

  The receiver 30 receives real-time metadata from a broadcast station, for example, 5 minutes earlier than the current time, displays it for viewers in chronological order, and an operation from the viewer who confirmed the display. As a result, the content from the time point that is, for example, 5 minutes earlier than the current time point is output (monitor display, audio output) to allow the viewer to view the content.

  The content distribution device 20 uses a non-volatile memory as a retroactive program, for example, at a 5-minute interval (5 minutes, 10 minutes, 15 minutes,...) These retroactive programs are distributed to the receiver 30 via a communication network, for example.

  That is, the content analysis apparatus 10 sequentially analyzes broadcast content that is currently broadcast, and the viewer receives a message indicating the content of the broadcast content from a point that is, for example, five minutes back from the current time based on the analysis result. It is possible to notify the receiver 30 to be used and sequentially generate metadata for prompting the viewer to perform an operation for viewing past broadcast content.

Hereinafter, details of the configurations of the content analysis device 10, the content distribution device 20, and the receiver 30 will be described.
(Content analysis device)
The content analysis device 10 includes a reception unit 11 and a content analysis unit 12.
The receiving unit 11 receives broadcast content broadcast from a broadcast station, and demultiplexes video (including subtitles) and audio multiplexed in, for example, a TS (Transport Stream) format in the broadcast content, Returning to the respective compressed signals, the compressed signals are decoded, and the video signal and the audio signal are output to the content analysis unit 12. If the broadcast content includes a signal other than video and audio, such as the current date and time, the receiving unit 11 separates this signal and outputs it to the content analysis unit 12.

(Content analysis unit in the content analysis device)
FIG. 2 is a block diagram illustrating an example of a functional configuration of a content analysis unit of the content analysis apparatus of the broadcast system according to the embodiment.
FIG. 3 is a diagram illustrating an example of a flow from broadcasting to viewing a retroactive program by the broadcasting system in the embodiment.
FIG. 4 is a diagram illustrating an example of real-time metadata and retrospective viewing for real-time broadcasting by the broadcasting system in the embodiment.
As shown in FIG. 2, the content analysis unit 12 includes a content acquisition unit 12a, a content analysis unit 12b, a metadata generation unit 12c, and an output unit 12d.

The content acquisition unit 12a acquires the broadcast content received by the reception unit 11.
The content analysis unit 12b sequentially analyzes video within a predetermined time and audio within a predetermined time included in the broadcast content acquired by the content acquisition unit 12a.

The metadata generation unit 12c sequentially generates real-time metadata indicating the content of the broadcast content based on the analysis result by the content analysis unit 12b. The real-time metadata includes a broadcast date / time of the broadcast content and a message indicating the broadcast content at the broadcast date / time.
In generating real-time metadata, the metadata generation unit 12c uses, for example, artificial intelligence (AI) to indicate a keyword indicating program content at a certain broadcast date and time indicated by the above analysis result. Based on the message generation criteria, the metadata generation unit 12c generates a message that briefly indicates the broadcast content and is useful for determining whether the viewer needs to view the retroactive program. By associating this message with the date and time of broadcasting as described above, real-time metadata (see FIGS. 3 and 4) can be obtained.

  For example, as shown in FIG. 4, the real-time metadata includes, for example, first real-time metadata (broadcast date and time “10:01:00, message“ Japan goal ”) at 10:01:10 of the current time, Second real-time metadata (broadcast date and time “10:06:00”, message “Earthquake Bulletin”), third real-time metadata (broadcast date and time “10:09:00”), message “moment of criminal arrest! ]) Is displayed on the receiver 30 in time series, and new real-time metadata is sequentially displayed as the broadcast progresses.

  The above-mentioned broadcast content message is a short message of the broadcast date / time of the corresponding real-time metadata or an event that occurred immediately before this date / time (for example, a scoring scene in a sports broadcast, earthquake early warning, latest news (see FIG. 4)). It is desirable that the content be distinguishable from the message of the broadcast content of real-time metadata generated for other broadcast dates and times.

The broadcast date and time may be this time as long as the broadcast content includes a signal of the current date and time, and when the content acquisition unit 12a analyzes the broadcast content, the content acquisition unit 12a measures the time with an internal clock. The date / time corresponding to the date / time when this broadcast content was broadcast is not particularly limited. The broadcast date and time may be expressed by, for example, hour or minute or hour and minute second, and may be expressed by including the date.
In addition, the broadcast date and time may be expressed as a time (for example, “XX minutes ago”) retroactive from the present time.

  In the above example, the content analysis unit 12 has been described to generate both real-time metadata by analyzing both the video and audio of the broadcast content. However, under the condition that the message in the real-time metadata can be generated correctly. The content analysis unit 12 may analyze only one type of video and audio of the broadcast content and generate real-time metadata.

  The metadata generation unit 12c sequentially generates the generated real-time metadata as the broadcast progresses (for example, the order of the first real-time metadata, the second real-time metadata, and the third real-time metadata). ), And output these data sequentially in time series.

  The output unit 12d distributes the real-time metadata generated by the metadata generation unit 12c to a broadcast station via a communication network or the like, and causes the receiver 30 to broadcast the data broadcast as a data broadcast.

  The viewer confirms the real-time metadata sequentially generated from the time point that is, for example, 5 minutes earlier than the current time via the receiver 30, so that the viewer can start from the time point that is, for example, 5 minutes later than the current time. It is possible to determine whether or not it is necessary to view the retroactive program.

(Content distribution device)
The content distribution device 20 includes a first distribution unit 21, a second distribution unit 22, and a third distribution unit 23.
The first distribution unit 21 sequentially acquires the broadcast content broadcast from the broadcast station for each channel, and updates the broadcast content for the past 5 minutes from the current 5 minutes to the current time for each channel while sequentially performing the overwrite update. Always stored in a storage medium. The first distribution unit 21 always distributes the broadcast content for the past five minutes to the receiver 30 via a communication network or the like.
The second distribution unit 22 sequentially acquires the broadcast content broadcast from the broadcast station for each channel, and updates the broadcast content of the past 10 minutes from the current 10 minutes to the current time for each channel while sequentially performing the overwrite update. Always stored in a storage medium. The second distribution unit 22 constantly distributes the broadcast content for the past 10 minutes to the receiver 30 via a communication network or the like.
The third distribution unit 23 sequentially acquires broadcast contents broadcast from the broadcasting station for each channel, and updates the broadcast contents for the past 15 minutes from the current 15 minutes before to the current time for each channel while sequentially performing overwrite update. Always stored in a storage medium. The third distribution unit 23 constantly distributes the broadcast content for the past 15 minutes to the receiver 30 via a communication network or the like.

It is desirable that the content distribution device 20 is configured to distribute the retrospective broadcasts each held in the past to the receiver 30 every 5 minutes.
In the above example, the length of the retroactive broadcast is set to three types of the past 5 minutes, the past 10 minutes, and the past 15 minutes, but for example, the past 20 minutes, the past 25 minutes, and the past 30 minutes. A type may be prepared.

(Receiving machine)
The receiver 30 is a device used by a viewer, receives broadcast content and real-time metadata from a broadcast station, and receives a video signal and an audio signal through demultiplexing and decoding in the same manner as the receiving unit 11 described above. obtain. The receiver 30 outputs video and audio of broadcast content related to the channel selected according to the channel operation on the remote controller 31 (which may be an operation button of the receiver 30 itself) from a monitor and a speaker (not shown).

  In addition, the receiver 30 transmits the real-time metadata related to the currently selected channel in a translucent manner to, for example, a part of the broadcast content display screen in accordance with an operation for starting the real-time metadata display on the remote controller 31. It can be displayed on the monitor in a superimposed manner.

  Further, regardless of the operation for starting the display of real-time metadata, the receiver 30 selects the channel when the channel is selected according to the channel operation according to the mode setting of the receiver 30 by the viewer. Real-time metadata regarding the selected channel may be automatically displayed on the monitor.

  Here, the range of the broadcast date and time in the real-time metadata displayed by the receiver 30 may be a range equal to or longer than the longest time of retroactive broadcasting that can be held by the content distribution apparatus 20. For example, if the content distribution apparatus 20 can hold a retroactive broadcast for the past 15 minutes at the longest, the receiver 30 may display real-time metadata corresponding to at least 15 minutes before the current time.

  The viewer confirms the broadcast date and time corresponding to the message of the broadcast content that he / she is interested in (desired to view retroactively) from the broadcast date and time indicated by the real-time metadata displayed on the receiver 30, A retroactive time more than the time from the broadcast date and time to the present time can be designated by operating the remote controller 31 or the like. For example, if the broadcast date and time included in the metadata including the broadcast content message that is of interest to the viewer indicates 8 minutes before the current time and the retroactive broadcast distributed by the content distribution device 20 is in increments of 5 minutes, The viewer may specify, for example, a retro broadcast on the same channel as the currently selected channel, starting from a time five minutes before or before the current time, as the retro broadcast to be viewed.

  In accordance with the operation of the remote controller 31 by the viewer, the receiver 30 is designated by the viewer in the same channel as the currently selected channel among various retro broadcasts distributed from the content distribution device 20. Output the retroactive broadcast corresponding to the retroactive time.

  Next, another example of designation of the retroactive broadcast to be viewed will be described. Instead of specifying the retroactive time in the receiver 30, as shown in FIG. 4, on the real-time metadata display screen in the receiver 30, a check box for selecting content (scene) is displayed in the real-time metadata at each time. The viewer can designate the retroactive broadcast to be viewed by enabling the check box corresponding to the content desired to be viewed retroactively by, for example, remote control operation.

In accordance with this designation, the receiver 30 outputs a retroactive broadcast corresponding to the same channel as the currently selected channel, starting from the broadcast time of the scene related to this enabled check box or a time before this. To do.
For example, in the example shown in FIG. 4, a check box C1 is provided for the first real-time metadata “broadcast date and time“ 10:01:00 ”and the message“ Japan goal ”, and the second real-time metadata“ broadcast date and time ”. “10:06:00”, message “Earthquake Bulletin” has a check box C2, and the third real-time metadata “broadcast date“ 10:09:00 ”and message“ moment of culprit arrest! ” A box C3 is provided.

For example, when the viewer wants to watch a retro broadcast starting from a scene (9 minutes before the current time) corresponding to the message “Nippon Goal” in the first real-time metadata, the check box C1 is activated and this scene is activated. The viewing of the retroactive broadcast from the broadcast timing may be specified by operating the remote controller 31 or the like.
In this case, the receiver 30 sets the current 10:10 in the same channel as the currently selected channel as the optimum retrospective broadcast in which the above-mentioned “Japan goal” scene can be viewed among the distributed retrospective broadcasts. It is possible to output a retroactive broadcast starting from 10 minutes before 00 minutes (before the time of the scene of “Japan goal”, the closest time in 5 minute increments to this time).

If this method is applied, the viewer does not need to specify the retroactive time, and only needs to select a desired scene that is the starting point of the retrospective viewing.
Here, the real-time metadata displays the broadcast contents (events) generated at a plurality of broadcast dates and times on the receiver 30 in time series (for example, the events that occurred at the old date and time are displayed at the top of the screen, The generated event may be generated by the metadata generation unit 12c and displayed on the receiver 30 as data that does not include the broadcast date / time under the condition that an event that has occurred is displayed at the bottom of the screen.

Next, a series of procedures from broadcasting to viewing a retroactive program by the broadcasting system in the embodiment will be described.
FIG. 5 is a flowchart illustrating an example of a procedure from broadcasting to viewing a retroactive program by the broadcasting system in the embodiment.
The receiving unit 11 of the content analysis apparatus 10 receives broadcast content from a broadcast station (S1). In addition, the content distribution device 20 distributes the retroactive program to the receiver 30.

  The content analysis unit 12 of the content analysis device 10 analyzes the broadcast content received in S1 (S2).

  The content analysis unit 12 of the content analysis device 10 sequentially generates real-time metadata based on the result of the analysis in S2, and transmits this to the broadcast station (S3). The broadcast station broadcasts this real-time metadata as a data broadcast.

  When the receiver 30 receives the real-time metadata, it receives a real-time metadata distribution operation by the viewer (S4), and displays the real-time metadata on the monitor (S5).

The receiver 30 receives an operation for viewing a retroactive program (for example, an operation for specifying the retroactive time) by the viewer who has confirmed the real-time metadata displayed in S5, and the receiver 30 includes the retroactive program distributed from the content distribution device 20 A retroactive program to be output is selected (S6).
The receiver 30 outputs the selected retroactive program and allows the viewer to view it (S7).

  As described above, in the embodiment of the present invention, real-time metadata of broadcast content is sequentially generated by the content analysis device 10 and displayed on the receiver 30, and the retroactive operation according to the operation of the viewer who confirmed the real-time metadata. Since the program can be displayed, it is possible to realize a broadcast system that can provide a viewing environment for the broadcast by making it possible to grasp the broadcast that the viewer is interested in from the past broadcasts in real time.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 10 ... Content analysis apparatus, 11 ... Reception part, 12 ... Content analysis part, 12a ... Content acquisition part, 12b ... Content analysis part, 12c ... Metadata production | generation part, 12d ... Output part, 20 ... Content delivery apparatus, 21 ... 1st 1 distribution part, 22 ... 2nd distribution part, 23 ... 3rd distribution part, 30 ... Receiver, 31 ... Remote control.

Claims (6)

A broadcasting system having a content analysis device and a content distribution device,
The content analysis device
Broadcast content is analyzed sequentially, and based on the result of the analysis, a message indicating the content of the broadcast content from a point that is a predetermined time later than the present time is notified to the receiver used by the viewer, and the past broadcast content is viewed. To generate metadata for prompting
The content distribution device includes:
Holds past broadcast content from a point that is a predetermined time later than the current point in time,
A broadcasting system that distributes corresponding past broadcast content to a receiver to which the metadata is notified. The content analysis device
The broadcast system according to claim 1, wherein at least one of video and audio included in the broadcast content is sequentially analyzed, and the metadata is sequentially generated. The content analysis device
Based on the result of the analysis, generate the metadata including the content and broadcast date and time of the broadcast content,
The content distribution device includes:
The past broadcast content corresponding to each of a plurality of types of times going back to the present time is held,
The broadcast system according to claim 1, wherein the past broadcast content is distributed according to selection of a broadcast time of the past broadcast content from a receiver notified of the metadata. The content analysis device
Based on the result of the analysis, generate the metadata including the content and broadcast date and time of the broadcast content,
The content distribution device includes:
The past broadcast content corresponding to each of a plurality of types of times going back to the present time is held,
The broadcast system according to claim 1, wherein the past broadcast content is distributed according to selection of metadata corresponding to a starting point of retrospective viewing from a receiver to which the metadata is notified. The generated metadata is broadcast from a broadcasting station to the receiver,
The receiver
Display the metadata corresponding to the currently selected channel,
The content distribution device includes:
The broadcast system according to claim 1, wherein the past broadcast content corresponding to the selected channel is distributed. To sequentially analyze broadcast contents, and to notify the receiver of a message indicating the contents of the broadcast contents from a time point that is a predetermined time later than the current time based on the result of the analysis, so as to prompt the user to view past broadcast contents Content analysis device that sequentially generates metadata.