JP2001313620A - Digital broadcasting system - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a digital broadcasting system capable of smoothly performing work related to a manually issued event message. SOLUTION: An authoring unit 101 generates a content 121 including a definition of a manually issued event message.
And sends the generated content 121 to the transmission system 110
A content registration unit 130, a cutout unit 131 that cuts out a manually issued event message included in the content 121 prior to registration by the content registration unit 130, and stores the cutout manually issued event message. Based on instructions from
Issue the memorized manually issued event message,
A transmission system 110 for multiplexing and transmitting the multiplexed content together with the content registered from the content registration unit 130;

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital broadcasting system, and more particularly, to a digital broadcasting system for transmitting an event message.

[0002]

2. Description of the Related Art Broadcasting is being digitized. 2
BS digital broadcasting service from December 2000, 200
A terrestrial digital broadcasting service is scheduled for three years. These digital broadcasting services also include data broadcasting that enables interactive content broadcasting. Note that data broadcasting is described in the radio wave industry, such as “Data broadcasting coding and transmission system in digital broadcasting ARIB STD-B24 version 1.0” and “BS digital broadcasting operation regulations ARIB TR-B15 version 1.0”.

[0003] Among these systems, there is a system called an event message transmission system. In this method, a broadcast station sends message information (event message) immediately or at a specified time to an application operating on a receiver. The receiver that has received the event message can display the event message on a television screen or execute a process (event process) designated in advance by using the event message as a trigger. The event message is a manually issued type of message that is immediately transmitted when an instruction is issued in a broadcasting station (manually issued event message).
And a time-specified type (time-specified event message) transmitted from the broadcast station at the specified time.

FIG. 15 is a block diagram showing a configuration of a conventional digital broadcasting system. This digital broadcasting system 500 is a computer system that supports the processes from production and editing of digital broadcasting contents to transmission by broadcast waves, and includes an authoring unit 501, a content storage unit 520, a content registration unit 530, and a transmission system 510. Is done. The transmission system 510 further includes a video / audio transmission control unit 511, a content transmission control unit 512, and a manually issued event message generation / issue unit 5.
13 and a multiplexing unit 514.

[0005] The authoring unit 501 is an editing device for producing data broadcast contents (hereinafter, data broadcast contents are simply referred to as "contents").
The content storage unit 520 is a storage device that stores produced content. The content 521 stored in the content storage unit 520 is roughly composed of three types of files: a content configuration information file 522, a scene information file group 523, and a monomedia information file group 524.

Here, the content configuration information file 52
Reference numeral 2 denotes a file that holds information indicating the entire configuration of the content, and refers to a scene information file group 523 and a mono media information file group 524. The scene information file group 523 is a group of scene information indicating elements constituting one screen, and the monomedia information file group 524 is a group of monomedia such as bitmap images forming a scene.

[0007] The content registration unit 530 reads the content stored in the content storage unit 520 according to a fixed schedule, converts the content into an MPEG2 section format, and registers it in the transmission system 510 (outputs it to the content transmission control unit 512). . The video / audio transmission control unit 511 reads out the information from a VTR or the like that holds the video and audio information, and generates and multiplexes the MPEG2 elementary streams (video stream and audio stream) by compression encoding. Transformation part 514
And a real-time encoder that outputs to

[0008] The content transmission control unit 512 is encoder software or the like that converts the section format content sent from the content registration unit 530 into a carousel data stream according to a fixed program schedule, and outputs the carousel data stream to the multiplexing unit 514. Here, the carousel data stream refers to a stream of information (carousel data) repeatedly broadcast by the data carousel method.

The manual issue type event message generation / issuance unit 513 is a terminal device having a graphical user interface having a manual issue type event message storage unit 513a such as a hard disk drive. When an event message is generated / edited, the generated event message is stored in the manually issued event message storage unit 513a, or when an operator issues an issuance instruction, the instructed manual issuance type event is immediately issued. The message is read from the manually issued event message storage unit 513a and output to the multiplexing unit 514.

[0010] The multiplexing unit 514 includes a video and audio stream, a carousel data stream, and a manually issued event sent from the video / audio sending control unit 511, the content sending control unit 512, and the manual issuing type event message generating and issuing unit 513. The message is packetized and multiplexed, and transmitted as a transport stream by broadcast radio waves.

The process for a manually issued event message in the conventional digital broadcasting system 500 configured as described above is as follows. The operation content (program) of the receiver when the manually issued event message is received is previously incorporated into the content by the authoring unit 501 as a program. Specifically, it is described in the scene information file 523a like a program 523a shown in FIG. here,
The receiver that receives the event message 3 is programmed to display the message data included in the event message on the screen.

On the other hand, the manually issued event message itself can be defined (generated) by the operator while interacting with the manually issued event message generating and issuing unit 513.
The generated manually issued event message is stored in the manually issued event message storage unit 513a. Specifically, as in a manually issued event message 513b shown in FIG. 15, a name id, a message id, message data, the number of transmissions, a transmission interval, and the like are defined and stored.

When the operator gives an instruction to send a specific manually-issued event message, the manually-issued event message generation / issuing unit 513 immediately sends the message id and message data of the corresponding event message. Is repeated at the specified transmission interval for the specified number of transmissions. As a result, upon receiving the event message of the corresponding message id, the receiver, which has received the program relating to the manually issued event message in advance, immediately converts the message data included in the event message into an image on the TV screen. They are displayed in layers. As a result, an emergency message that occurs asynchronously, such as the occurrence of an earthquake, is immediately transmitted from the broadcasting station to the receiver.

[0014]

However, the operation of a manually issued event message by the above-mentioned conventional digital broadcasting system has the following problems. That is,
Although the creation of the event message (definition of the event message itself) and the programming using it are closely related, different devices (one of which is the transmission system 5) are used.
10, the other is required to be performed using the authoring unit 501), so it is not easy to proceed with the work while maintaining their consistency, and the work related to the manually issued event message becomes extremely complicated. turn into.

[0015] In a conventional digital broadcasting system,
At the time of content creation, that is, at the time of programming using the event message, an event message that can be expected is prepared in advance, and only an event message that cannot be expected is created and issued on the spot (transmission system). , Cannot be operated flexibly.

Further, in the conventional digital broadcasting system, a variety of programs (contents) are defined which separately define a time designation type event message and a manually issued type event message and describe an event process using the event message. We couldn't do that, but we still need to respond to the need to make such content possible.

In view of the above problems, it is an object of the present invention to provide a digital broadcasting system and a method of transmitting a manually issued event message that can smoothly perform a task related to a manually issued event message. . Also, to provide a digital broadcasting system or the like capable of creating a manually issued event message, a digital broadcasting system capable of producing content by distinguishing between a time designation event message and a manually issued event message, and the like. Also aim.

[0018]

A digital broadcasting system according to the present invention is a digital broadcasting system including an authoring device and a transmitting device for transmitting contents transmitted from the authoring device, wherein the authoring device includes an operator. And generating means for generating event definition information that defines an event message to be transmitted immediately when there is a transmission instruction from, and adding means for adding the event definition information generated by the generating means to the content. Features.

Thus, in the content production process, the creator can define (generate) not only the event processing programming using the manually issued event message but also the predictable manually issued event message.
Since the event processing programming and the event definition are performed in different devices as in the related art, the work is not complicated.

Here, in the digital broadcasting system, the generating means generates event definition information including an event message and tag information, and the tag information is
The event message may be forwarded to the sending device in advance, and may be information that causes the authoring device to immediately identify the event message to be sent from the sending device when a sending instruction is given by the operator of the sending device. Good.

[0021] In the digital broadcasting system, the authoring device further cuts out the event definition information from the content added by the adding unit using the tag information as a clue, and sends out the cut out event definition information. Transfer means for transferring to the device, the sending device is configured to store an event message in the event definition information transferred from the authoring device, and to be stored in the storage means in accordance with a sending instruction from an operator. And a multiplexing unit that multiplexes the issued event message and the content and transmits the multiplexed event message and the content.

Thus, the manually issued event message defined in the content production stage is stored in the sending device after being cut out by the authoring device. There is no need to create a new event message.
In other words, in the sending device, the operator only needs to create and issue only a sudden event message of a type that was unexpected at the stage of content creation. Also, HT
It is possible to define a manually issued event message using a markup language such as ML, and it is easy to maintain compatibility with other description languages.

In the digital broadcasting system, the generation means generates event definition information including an event message and tag information, and the tag information is
The event message may be immediately issued to the sending device when there is a sending instruction from the operator of the authoring device, and the information may be information for identifying the event message to be sent from the sending device to the authoring device. .

[0024] In the digital broadcasting system, the authoring apparatus further includes a cutout unit that cuts out the event definition information from the content added by the adding unit using the tag information as a clue; Storage means for storing the event message, and issuing means for issuing the event message stored in the storage means to the sending device in accordance with the sending instruction from the operator, and sending the event message to the sending device, the sending device comprising: A multiplexing unit that multiplexes and transmits the event message and the content issued from the authoring device in accordance with a transmission instruction from the operator may be provided.

Thus, it is possible to generate, accumulate, and issue a manually issued event message not in the sending device but in an upstream process thereof. Therefore, the efficient operation of creating event messages that can be expected at the time of authoring at the time of content creation and creating and issuing only urgent and unpredictable event messages with the conventional sending device is an efficient operation. It becomes possible. In addition, it is possible to define a manually issued event message using a markup language such as HTML, and it is easy to maintain compatibility with other description languages.

Further, in the digital broadcasting system, the authoring device includes an acquisition unit for acquiring a content to which event definition information is added from the outside,
The extracting unit may extract the event definition information from the content acquired by the acquiring unit.
In addition, the acquisition unit may acquire the content via a portable recording medium, or may acquire the content via a network.

Thus, it is possible to acquire the content created by another authoring apparatus via a recording medium and a network, and to generate, accumulate, and issue a manually issued event message for the acquired content. it can. Further, the present invention realizes characteristic components in the digital broadcasting system as processing procedures,
These processing procedures can be realized as a program that causes a computer to execute the processing procedures.

Further, the present invention can be realized as a computer-readable recording medium on which digital broadcast contents are recorded. The content includes event definition information that defines a manually issued event message to be immediately sent to the receiver when instructed by the operator, and a process when the receiver receives the manually issued event message. And a program in which contents to be performed are described.

Such data broadcasting contents include not only event processing using a manually issued event message but also a definition statement of an event message that can be expected. It is possible to provide a high-performance service in which the receiver performs a certain process in synchronization. As described above, according to the present invention, the generation, storage, and
The work at the broadcasting station involved in the issuance has been facilitated, and its practical value is extremely high.

[0030]

Embodiments of a digital broadcasting system according to the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a schematic diagram showing a configuration of a digital broadcasting system 100 according to Embodiment 1. The digital broadcasting system 100 is a system capable of defining a manually issued event message in a content production process, and includes authoring devices 11 and 12 and a transmission system 110. And LAN (Loca
Authoring devices 11, 1 via lArea Network)
2 is connected to the delivery system 110. The authoring device 12 has the same configuration as the authoring device 11, and the description is omitted.

FIG. 2 is a functional block diagram showing the configuration of the digital broadcasting system 100 according to the first embodiment.
The authoring apparatus 11 includes an authoring unit 101, a content storage unit 120, a content registration unit 130, and a manually issued event message cutout unit 131.

Here, the manually issued event message refers to a manually issued event message of a type that is immediately transmitted when an instruction is issued in a broadcasting station. The event messages include a manually issued event message and a time-specified event message. The time-specified event message refers to a time-specified event message transmitted from a broadcasting station at a specified time.

The transmission system 110 includes a video / audio transmission control unit 511, a content transmission control unit 512, a manually issued event message generation / issue unit 113, and a multiplexing unit 51.
4 The same components as those in the related art are denoted by the same reference numerals, and description thereof will be omitted. The authoring unit 101 includes, for example, authoring software for editing interactive content for digital broadcasting and basic software such as Microsoft Windows for operating the same, and a personal computer. Is a device for producing / editing a manually issued event message (manually issued event message generating unit 10).
1a). The authoring software includes not only an authoring tool dedicated to data broadcasting but also a general-purpose text editor.

A manually issued event message generator 10
1a provides a creator with a graphical user interface for defining a manually publishable event message, and obtains instructions for the creator and obtains a description that defines the manually publishable event message directly from the creator. By doing so, a manually-issued event message definition sentence in a certain notation is generated and included in the content configuration information file 122, and the content storage unit 120
Output to

The content storage unit 120 is a storage device for storing the content created by the authoring unit 101, and includes, for example, a large-capacity hard disk drive. The content 121 stored in the content storage unit 120 is a content configuration information file 1
22, a scene information file group 123 and a monomedia information file group 124.

The content configuration information 122 shown in FIG.
As shown in a, the content configuration information file 122 includes:
The definition of the manually issued event message itself (from tag <manually issued> to tag </ manually issued>) is also described. In addition,
Instead of the tag “<manual issue></ manual issue>”, a tag “<take><//take>” may be used. Here, the naming of the tag “<take></take>” is such that the sending system 110 defines the manually issued event message itself (from tag <manually issued> to tag </ manually issued>).
(Take) before receiving the sending instruction from the operator.

FIG. 3 shows the contents configuration information file 12.
2 is an example of a program list showing the contents of No. 2. The content configuration information file 122 is described in a markup language and specifies a description part 122b (<repeated transmission> to </ repeated transmission>) that specifies information that is repeatedly broadcast by the data carousel method, and is reproduced together with the data broadcast. Description part 12 for specifying the video / audio stream to be
2c (<audio> and <video>), a definition statement 122d (<event_msg>) of the time-specified event message,
It includes the manually issued event definition information 122e (<manually issued> to </ manually issued>) generated by the manually issued event message generating unit 101a.

Here, the attribute start_time indicates the start time of repeated transmission in the data carousel, and the attribute durati
on indicates the length of repetition. In this example, the data carousel lasts for 20 minutes. Tags <module> ~ </ /
Module> indicates the configuration of unit data (module) constituting the data carousel. The tag <resource>
Indicates one scene or a material file used by the scene, attribute type indicates the type of the file, attribute src
Indicates the file name. In this example, the module “module 1” includes three scenes and one bitmap image.

The attribute component_tag used in the tags <audio> and <video> is the component of the stream.
Indicates the nt_tag value. The tag <event_msg ~> defines a component for each event message (time-specified event message as a default). Here, if this tag <event_msg-> is arranged in the tags <manual issuance>-</ manual issuance> (such as a portion corresponding to the manually issued event definition information 122e in the figure) Means that the tag <event_msg ~ /> defines a manually issued event message.

Attributes id, message_id, start_time, num_times, interva used in tags <event_msg ~ />
l and private_data indicate the name of the event message, the message id, the transmission time, the number of transmissions, the transmission interval (in milliseconds), and the message data (contents of the event message, here, a character string). In this example,
Three manually issued event messages included in one time designation event message 122d and manually issued event definition information 122e are defined. Specifically, for the time-specified event message (“event message 1”), a character string “message has been sent so far” accompanied by the message id “0001” is the time.
The program is programmed to be repeatedly transmitted 20 times at 5 millisecond intervals from 00:10:00. As for the manually issued event message (“event message 2”), when issuance is manually instructed, the character string “election bulletin... It is programmed to be sent repeatedly 20 times at intervals of a total.

Note that a program using the event message (description relating to event processing) is placed in each scene information file 123a, as in the related art. The content registration unit 130 stores the content
0 and read the content stored in MPEG2
After conversion into the section format, the content is registered in the content transmission control unit 512 of the transmission system 110, and is composed of dedicated software for that purpose, basic software such as Microsoft's Windows for operating the same, and a personal computer. .

Before the content read by the content registration unit 130 is processed by the content registration unit 130, the manually issued event message cutout unit 131 deletes all manually issued event definition information 122e included in the content. The message is extracted and passed to the manually issued event message generation / issue unit 113. Therefore, the content registration unit 130 is cut out (deleted) by the manually issued event message cutout unit 131.
The subsequent content is registered in the transmission system 110.

The manual issue type event message generating and issuing unit 113 is a terminal device having a graphical user interface having a manual issue type event message storage unit 113a, such as a hard disk drive, and the like. In addition to the functions of the manually-issued event message storage unit 113, the manually-issued event message sent from the manually-issued event message extraction unit 131
a has a function of additionally registering a.

That is, as shown in FIG. 2, the content configuration information 1 generated by the authoring unit 101
The manually issued event message in 22a is stored in the manually issued event message storage unit 113a, and is held in the manually issued event message storage unit 113a as a registered manually issued event message 113b.

Therefore, the operator does not generate an event message using the manual-issuing-type event message generating / issuing unit 113, and the manually-issuing-type event message group ( By simply selecting an event message to be issued from the manually issued event message storage unit 113a (event message group registered in the event message storage unit 113a), a necessary manually issued event message can be immediately transmitted.

FIG. 4 is a display example of a screen provided in the manually issued event message generation / issue unit 113. The screen 114 includes a manually issued event message storage unit 11.
Manually issued event message 1 registered in 3a
13b name list 114a, details 114b about one event message selected in the list
And a button icon group 114c for giving various instructions
Is displayed.

The three event messages 2 to 4 displayed in the event message list 114a correspond to the three manually issued event messages included in the manually issued event definition information 122e shown in FIG. Yes, at the time of content creation, after being generated by the manually issued event message generating unit 101a of the authoring unit 101 according to the instruction of the creator, by the manually issued event message cutout unit 131 via the content storage unit 120 and the content registration unit 130 This is information that has been cut out and registered in the manually issued event message generating and issuing unit 113 (stored in the manually issued event message storage unit 113a).

The operator selects one of the event messages 114a from the list 114a of the event message by using a mouse, a keyboard, or the like, and confirms or edits the contents.
By pressing 14f, a specific event message can be transmitted immediately. In addition, the operator operates the new creation button 114 d and the deletion button 114
e, a new manually issued event message is created and registered in the manually issued event message storage unit 113a, or the manually issued event message storage unit 113a is created.
It is also possible to delete a manually issued event message registered in a.

Next, the operation from generation to issuance of a manually issued event message by the digital broadcasting system 100 according to the first embodiment configured as described above will be described.
FIG. 5 is a flowchart showing the operation procedure. The manual-issuing type event message generating unit 101a of the authoring unit 101 generates tags <manual issuing> and <
/ Manual issue> to generate a manual issue type event message (manual issue type event definition information 122e),
The content information file 122 is included in the content configuration information file 122 and output together with other descriptions defining the components of the content, and is stored in the content storage unit 120 together with the scene information file group 123 and the monomedia information file group 124 (step S150).

When content 121 is read from content storage unit 120 by content registration unit 130,
The manually issued event message cutout unit 131 detects all the manually issued event definition information 122e included in the content 121 (content configuration information file 122) based on the tag <manually issued></ manually issued>, These are cut out from the content 121 and output to the manually issued event message generation / issuance unit 113, and the remaining information 122 to 124 are processed by the content registration unit 130 and then registered in the transmission system 110 (step S151).

Upon receiving the manually issued event message sent from the manually issued event message extracting unit 131, the manually issued event message generating and issuing unit 113 additionally registers them in the manually issued event message storage unit 113a ( Step S152). The manually issued event message generation / issue unit 113 displays a list or changes event messages registered in the manually issued event message storage unit 113a by interacting with the operator via display on the screen. And waits for an instruction to issue a specific event message (step S153).

When the operator issues an instruction to issue one or more event messages from the group of event messages displayed on the screen, the manually-issued event message generation / issue unit 113 immediately issues Then, the designated event message is read from the manually issued event message storage unit 113a, and the message data such as a character string is output to the multiplexing unit 514 together with the message id according to the attributes such as the number of transmissions and the transmission interval included therein. (Yes in step S153).

The multiplexing unit 514, which has received the message data and the like sent from the manually issued event message generating and issuing unit 113, packetizes it in real time, multiplexes it with packets of other streams, and sends it out as broadcast data by broadcast radio waves. (Step S154). Next, an example of screen display on a receiver (television receiver) when a broadcast by the digital broadcasting system 100 according to the first embodiment as described above is received will be described.

FIG. 6 shows a screen display example before an event message is sent. The screen display 600 is a scene showing a news headline, and the weather information 60 is displayed.
1, a display object such as a television image 602 and two buttons 603 and 604 for executing a link to another scene. Screen displays 605 and 609 are respectively
A scene showing detailed news displayed when the buttons 603 and 604 are selected on the screen display 600. The screen display 605 includes a detailed news 606, a television image 607, and a news headline screen display 600.
A button 608 for returning to is displayed.

In these screen displays, for example, the contents of the screen displays 600, 605, 609, and 602 respectively correspond to the contents configuration information file 122 shown in FIG.
The descriptions correspond to the contents of “news headline.bml”, “detailed news 1.bml”, “detailed news 2.bml”, and “news video 2”. FIG. 7 shows a screen display example immediately after an event message is sent.

The screen display 700 corresponds to a case where the message data "earthquake has occurred" is displayed at the top of the detailed news screen display 605 shown in FIG. This is because, for example, in the scene file “detailed news 1.bml” shown in FIG.
003 "is described, and the message data is broadcast on the top of the screen when the event message is received (" event message 3 "). Applicable when transmitted by radio waves.

The receiver receives the content “Detailed News 1.bm
l ”, the message_id is“ 000 ”when the content is displayed.
It monitors the broadcast data while filtering to see if an event message of "3" is sent. If the event message is detected, the message data contained in it "An earthquake occurred. "Can be displayed on the screen.

As described above, according to the digital broadcasting system of the first embodiment, a manually issued event message can also be created in the content production process. It is possible to avoid complication of work caused by performing programming using an event message and generating / issuing the same using different devices.

Further, a manually issued event message used in programming at the time of content creation is prepared, and only an event message that is urgently required is generated and issued by the manually issued event message generation / issue unit 113. Flexible operation becomes possible. Further, as in the content configuration information file shown in FIG. 3, a time designation type event message and a manually issued type event message are defined and referred to as different message_ids, so that the event processing of the two types can be distinguished. Programming is also possible. (Embodiment 2) Next, Embodiment 2 of the digital broadcasting system according to the present invention will be described.

FIG. 8 is a functional block diagram showing a configuration of digital broadcasting system 200 according to the second embodiment.
The digital broadcasting system 200 enables the definition of manually issued event messages in the content production process, and stores the manually issued event messages in a stage (registration stage) before the event messages are registered in the transmission system. And an issuing instruction. The system includes authoring devices 21 and 22 and a transmission system 210. And LAN
Authoring device 2 via (Local Area Network)
1 and 22 are connected to the delivery system 210. Note that the authoring device 22 has the same configuration as the authoring device 21, and the description is omitted.

FIG. 9 is a functional block diagram showing a configuration of digital broadcasting system 200 according to the second embodiment.
The authoring apparatus 21 includes an authoring unit 201, a content storage unit 220, a content registration unit 230, an immediate registration event message cutout unit 231, an immediate registration event message selection unit 232, and an immediate registration event message storage unit 233.

The transmission system 210 includes a video / audio transmission control unit 511, a content transmission control unit 512, an event message transmission control unit 213, and a multiplexing unit 514. Hereinafter, a description will be given focusing on a point different from the first embodiment. The authoring unit 201 includes a characteristic configuration (an immediate registration event message generation unit 201a) for generating an immediate registration event message in addition to the function of the authoring unit 101 in the first embodiment.

Here, the immediate registration event message is one of the manually issued event messages, and is a type of event message that is immediately transmitted by broadcast waves when registered (input) in the transmission system. That is,
This is an event message of a type that is stored in a stage (upstream process) before being registered in the transmission system, and is immediately transmitted through the transmission system when issued by the operator.

Instant registration event message generator 201
a. To provide the author with a graphical user interface for defining an immediate registration event message, to obtain instructions for it, and to obtain a description that directly defines the immediate registration event message from the author. As a result, an immediate registration event message definition sentence in a certain notation is generated, included in the content configuration information file 222, and output to the content storage unit 220.

The content storage unit 220 is a storage device for storing the content created by the authoring unit 201, and includes, for example, a large-capacity hard disk drive. Content configuration information 22 shown in FIG.
As in 2a, the content configuration information file 222 also includes the definition of the immediate registration event message itself (from tag <immediate registration> to tag </ immediate registration>). In addition,
The tag "<later><//later>" may be used instead of the tag "<immediate registration><// immediate registration>".

Here, the tag "<later><// lat
er> ”means that the sending system 210 defines the event message sandwiched between the definitions of the immediate registration event message itself (from the tag <immediate registration> to the tag </ immediate registration>).
This is because the transmission instruction from the operator is received (later). FIG. 10 is an example of a program list showing the contents of the content configuration information file 222. The content configuration information file 222 includes the definition statement 222a (<immediate registration> to </ immediate registration>) of the immediate registration event message generated by the immediate registration event message generator 201a.

In this example, the immediately registered event definition information 2
Three immediate registration event messages included in 22b are defined. For example, with regard to the immediate registration event message (“event message 4”), if issuance is manually instructed in the registration stage with the sending system, the message id “0004” is immediately accompanied by the message id “0004” as soon as it is registered with the sending system. It is programmed that the character string "next is ..." is repeatedly sent out 20 times at 5 millisecond intervals.

A program using the event message (description relating to event processing) is placed in each scene information file 223a as in the conventional case. The content registration unit 230 stores the content in the content storage unit 22.
0 and read the content stored in MPEG2
And then register it in the content transmission control unit 512 of the transmission system 210.

Immediate registration event message cutout unit 2
Before the content read by the content registration unit 230 is processed by the content registration unit 230, only the immediate registration event definition information 222b included in the content is cut out and stored in the immediate registration event message storage unit 233. . Therefore, the content registration unit 230 registers the content that has been cut out (deleted) by the immediate registration event message cutout unit 231 in the transmission system 210 as a target.

The instant registration event message storage unit 233
Is composed of a large-capacity storage device such as a semiconductor memory or a hard disk, and accumulates and stores the instant registration event message 233a as shown in FIG. The immediate registration event message selection unit 232 is an intelligent terminal device or the like that provides a graphical user interface to the operator, and the immediate registration event message registered in the immediate registration event message storage unit 233 based on the interaction with the operator. When the message 233a is displayed or edited, or when an issuance instruction is issued from the operator, the designated immediate registration event message is immediately read from the immediate registration event message storage unit 233 and output to the event message transmission control unit 213. Or

FIG. 11 is a display example of a screen provided in the immediate registration event message selection section 232. This screen 21
Reference numeral 4 denotes a list 214a of names of the instant registration event messages 233a registered in the instant registration event message storage unit 233, details 214b of one event message selected in the list, and button icons for giving various instructions. The group 214c is displayed.

The three event messages 2 to 4 displayed in the event message list 214a correspond to the three immediate registration event messages included in the immediate registration event definition information 222b shown in FIG.
The operator selects one of the event messages from the list 214a using a mouse, a keyboard, or the like to confirm or edit the content, or immediately sends a specific event message by pressing the issue button 214f. Or you can. Note that, as in the case of editing in the manually-issued event message generation / issuance unit 113 in the first embodiment, the operator sets a new creation button 214d and a delete button 2d.
14e, an immediate registration event message can be newly created and registered in the immediate registration event message storage unit 233, or the immediate registration event message registered in the immediate registration event message storage unit 233 can be deleted. .

The event message sending control unit 213
Conventional manual issuance type event message generation and issue unit 513
In addition to the functions of the multiplexing unit 514, when the immediate registration event message sent from the immediate registration event message selection unit 232 is received, the function is immediately passed to the multiplexing unit 514. Next, an operation from generation to issuance of an instant registration event message by the digital broadcasting system 200 according to the second embodiment configured as described above will be described.

FIG. 12 is a flowchart showing the operation procedure. The immediate registration event message generation unit 201a of the authoring unit 201, based on an instruction from a creator of the content, generates a tag <
Immediate registration event message (immediate registration event definition information 222b) surrounded by <immediate registration> and </ immediate registration>
Is generated, included in the content configuration information file 222 together with other descriptions that define the components of the content, output, and stored in the content storage unit 220 together with the scene information file group 223 and the mono media information file group 224 (step S250) ).

When the content 221 is read from the content storage unit 220 by the content registration unit 230,
The immediate registration event message cutout unit 231 detects all the immediate registration event definition information 222b included in the content 221 (content configuration information file 222) based on the tag <immediate registration></ It is cut out from the content 221 (step S251), and the immediate registration event message storage unit 233
(Step S252).

Immediate registration event message selection section 232
Displays, changes, or deletes the event messages stored in the instantly registered event message storage unit 233 by interacting with the operator via display on the screen, and displays a specific event message. Wait for an instruction to issue (step S253). Then, one of the group of event messages displayed on the screen is displayed.
When the operator issues an instruction to issue one or more event messages, the immediate registration event message selection unit 232 immediately reads out the instructed event message from the immediate registration event message storage unit 233. In step S254, message data such as a character string is output to the event message transmission control unit 213 together with the message id in accordance with attributes such as the number of transmissions and the transmission interval included in.

Immediate registration event message selection section 232
Is sent to the multiplexing unit 514 via the event message transmission control unit 213, where it is packetized in real time, multiplexed with packets of other streams, and broadcast data as transmission data. (Step S255). As described above, according to the digital broadcasting system of the second embodiment, an instant registration event message can also be created at the time of content creation, and the created event message is held at a stage before registration in the transmission system. When the operator issues an issuance instruction, the event message is transmitted immediately through the transmission system.

Thus, with respect to a manually issued event message of the type of immediate registration event message, management over the entire life cycle of generation, accumulation, and issuance can be performed in an upstream process separated from the sending system. And the work related to the event message is facilitated. In other words, at the time of content creation, not only fixed event messages,
Event messages for which it is unclear whether to issue them can also be created and prepared in advance, and when they need to be issued, event messages can be sent immediately without the need for operation in the sending system Becomes (Embodiment 3) Next, Embodiment 3 of the digital broadcasting system according to the present invention will be described.

FIG. 13 is a functional block diagram showing a configuration of digital broadcasting system 300 according to the third embodiment. The digital broadcasting system 300 is a system that enables reading of a manually issued event message included in content created by another authoring device in a content production process. 13 is different from the authoring device 11 shown in FIG. 2 in the first embodiment in that a content registration unit 330 is provided instead of the content registration unit 130, and a new I / O unit 340 is added. The configuration has been added. The same components as those in the first embodiment are denoted by the same reference numerals, the description thereof will be omitted, and the third embodiment will be described focusing on different components.

The content registration section 330 is the same as that of the first embodiment.
In addition to the function of the content registration unit 130, the content created by another authoring device is read via the I / O unit 340. I / O section 340
Is an I / O port provided in the content registration unit 330, and a recording medium reading device is connected to the I / O port. Note that the recording medium reading device is a floppy (registered trademark) drive, a CD-ROM drive, a DVD-ROM drive, or the like.
ROM drive, DVD-RAM drive, MO drive and the like.

That is, in addition to the function of content registration section 130 in the first embodiment, content registration section 330 reads, via a recording medium, content from a recording medium on which content created by another authoring device is recorded. . And, for the loaded content,
The same processing as that performed by the content registration unit 130 is performed. Note that I
The / O section 340 may be a NIC (Network interface card). In that case, the content registration unit 330
Via a network connected to C, a NAS (NeNe) that records content created by other authoring units
tworkAttached Storage), SAN (Storage Area Network)
And reads the content from the file server device.

Although the digital broadcasting system according to the present invention has been described based on the embodiments, the present invention is not limited to such embodiments.
For example, in the above embodiment, the definition related to the event message is described in the content configuration information file, but the present invention is not limited to such a file structure. As shown in FIG. 14, an external reference file 401 different from the content configuration information file 400
A file structure may be used in which a manually issued event message is defined in advance, and a pointer to the external reference file is described in the content configuration information file 400.

Further, the first embodiment and the second embodiment may be combined. In other words, in addition to the conventional digital broadcasting system, a digital broadcasting system may be provided that has the components 101a and 131 unique to the first embodiment and the components 201a, 231 to 233 unique to the second embodiment. . Thus, the first embodiment
The first type of event that stores the manually issued event message created in the upstream process in the sending system and immediately sends it when an issuing instruction is issued in the sending system, like the manually issued event message in Like the instant message and the instant registration event message in the second embodiment, the manually issued event message created in the upstream process is stored in the upstream process, and immediately passed through the sending system when the issuance instruction is issued. A high-performance digital broadcasting system capable of simultaneously using and programming the second type of event message to be transmitted and transmitted is realized.

The characteristic components 101a, 131, 201a, 231, 232 and the like in the above-described embodiment can be realized as a program executed by a general-purpose computer system. The characteristic program can be distributed via a recording medium such as a CD-ROM or a transmission medium such as a communication network. Further, data files 122 and 22 each containing a characteristic event message definition statement according to the present invention.
2, 400 and 401 can be similarly distributed via a recording medium or a transmission medium.

[0085]

As is apparent from the above description, the digital broadcasting system according to the present invention includes an authoring device,
A sending device for sending a content sent from the authoring device, wherein the authoring device has event definition information that defines an event message to be sent immediately upon receiving a sending instruction from an operator. , And an adding unit for adding the event definition information generated by the generating unit to the content.

Thus, in the content production process, the creator can define (generate) not only the event processing programming using the manually issued event message but also the predictable manually issued event message.
Since the event processing programming and the event definition are performed in different devices as in the related art, the work is not complicated.

Here, the generation means generates event definition information including an event message and tag information,
The tag information transfers the event message to a sending device in advance, and when an sending instruction is given from an operator of the sending device, causes the authoring device to immediately identify the event message to be sent from the sending device. It may be information.

The authoring device further includes a cutout unit that cuts out the event definition information from the content added by the adding unit using the tag information as a clue, and a transfer unit that transfers the cutout event definition information to a sending device. The sending device issues an event message stored in the storing device in accordance with a sending instruction from an operator, the storing device storing an event message in the event definition information transferred from the authoring device. And multiplexing means for multiplexing and transmitting the issued event message and content.

Thus, the manually issued event message defined in the content production stage is stored in the sending device after being cut out by the authoring device. There is no need to create a new event message.
In other words, in the sending device, the operator only needs to create and issue only a sudden event message of a type that was unexpected at the stage of content creation. Also, HT
It is possible to define a manually issued event message using a markup language such as ML, and it is easy to maintain compatibility with other description languages.

The generating means generates event definition information including an event message and tag information, and the tag information is stored in the event information immediately when there is a transmission instruction from an authoring apparatus operator. The message may be issued to the sending device, and may be information for identifying the authoring device as an event message to be sent from the sending device.

The authoring apparatus further cuts out the event definition information from the content added by the adding means using the tag information as a clue, and stores the event message in the cut out event definition information. Means for issuing an event message stored in the storage means to the sending device in accordance with a sending instruction from the operator, and issuing means for sending the event message to the sending device. Multiplexing means for multiplexing and transmitting the event message and the content issued from the authoring apparatus.

Thus, it is possible to generate, accumulate, and issue a manually issued event message not in the sending apparatus but in an upstream process thereof. Therefore, the efficient operation of creating event messages that can be expected at the time of authoring at the time of content creation and creating and issuing only urgent and unpredictable event messages with the conventional sending device is an efficient operation. It becomes possible. In addition, it is possible to define a manually issued event message using a markup language such as HTML, and it is easy to maintain compatibility with other description languages.

[0093] The authoring apparatus may further comprise acquisition means for acquiring content to which event definition information is added from the outside, and the extraction means may extract the event definition information from the content acquired by the acquisition means. In addition, the acquisition unit may acquire the content via a portable recording medium, or may acquire the content via a network.

Thus, it is possible to acquire the content created by another authoring device via a recording medium and a network, and to generate, accumulate, and issue a manually issued event message for the acquired content. it can. Further, the authoring device according to the present invention is an authoring device, comprising: generating means for generating event definition information for defining an event message to be transmitted immediately upon receiving a transmission instruction from an operator; Adding means for adding the generated event definition information to the content.

Thus, in the content production process, the creator can define (generate) not only the event processing programming using the manually issued event message but also the predictable manually issued event message.
Since the event processing programming and the event definition are performed in different devices as in the related art, the work is not complicated.

Here, the generating means generates event definition information including an event message and tag information,
The tag information transfers the event message to a sending device in advance, and when an sending instruction is given from an operator of the sending device, causes the authoring device to immediately identify the event message to be sent from the sending device. It may be information.

[0097] The authoring device further includes a cutout unit that cuts out the event definition information from the content added by the adding unit using the tag information as a clue, and a transfer unit that transfers the cutout event definition information to a sending device. May be provided. As a result, the manually issued event messages defined in the content production stage are stored in the sending device after being cut out by the authoring device. There is no need to create a new one. In other words, in the sending device, the operator only needs to create and issue only a sudden event message of a type that was unexpected at the stage of content creation. In addition, it is possible to define a manually issued event message using a markup language such as HTML, and it is easy to maintain compatibility with other description languages.

Further, the generation means generates event definition information including an event message and tag information, and the tag information is stored in the event information immediately when there is a transmission instruction from an authoring apparatus operator. The message may be issued to the sending device, and may be information for identifying the authoring device as an event message to be sent from the sending device.

The authoring apparatus further cuts out the event definition information from the content added by the adding means using the tag information as a clue, and stores the event message in the cut out event definition information. Means for issuing an event message stored in the storage means to the sending device in accordance with a sending instruction from the operator, and issuing the event message to the sending device.

Thus, it is possible to generate, accumulate, and issue a manually issued event message not in the sending device but in an upstream process thereof. Therefore, the efficient operation of creating event messages that can be expected at the time of authoring at the time of content creation and creating and issuing only urgent and unpredictable event messages with the conventional sending device is an efficient operation. It becomes possible. In addition, it is possible to define a manually issued event message using a markup language such as HTML, and it is easy to maintain compatibility with other description languages.

Further, the authoring apparatus may include an acquisition unit for acquiring the content to which the event definition information is added from the outside, and the extraction unit may extract the event definition information from the content acquired by the acquisition unit. In addition, the acquisition unit may acquire the content via a portable recording medium, or may acquire the content via a network.

Thus, it is possible to acquire the content created by another authoring device via a recording medium and a network, and to generate, accumulate, and issue a manually issued event message for the acquired content. it can. Further, a sending device according to the present invention is a sending device for sending a content sent from an authoring device, a storage device for storing an event message in event definition information transferred from the authoring device, and sending from an operator. It is characterized by comprising an issuing means for issuing the event message stored in the storage means in accordance with the instruction, and a multiplexing means for multiplexing and sending the issued event message and the content.

Thus, the manually issued event message defined at the stage of content creation is stored in the sending device after being cut out by the authoring device. There is no need to create a new event message.
In other words, in the sending device, the operator only needs to create and issue only a sudden event message of a type that was unexpected at the stage of content creation.

An event message sending method in a digital broadcasting system according to the present invention is an event message sending method in a digital broadcasting system including an authoring device and a sending device sending out content sent from the authoring device. A generating step of generating event definition information defining an event message to be transmitted immediately when a transmission instruction is issued from a user, and an adding step of adding the event definition information generated by the generating step to the content. It is characterized by.

Thus, in the content production process, the creator can define (generate) not only the event processing programming using the manually issued event message but also the predictable manually issued event message.
Since the event processing programming and the event definition are performed in different devices as in the related art, the work is not complicated.

Here, in the generating step, event definition information including an event message and tag information is generated, and the tag information transmits the event message to a transmitting device in advance, and the tag information is transmitted from an operator of the transmitting device. The information may be information that causes the authoring apparatus to identify an event message to be immediately transmitted from the transmission apparatus when a transmission instruction is issued.

The event message sending method further includes a step of cutting out the event definition information from the content added in the adding step using the tag information as a clue, and transferring the cut out event definition information to a sending device. A transfer step, a recording step of recording an event message in the event definition information transferred from the authoring device in a storage unit provided in the transmission device, and an event message recorded in the storage unit according to a transmission instruction from an operator. The issuing step may include a publishing step and a multiplexing step of multiplexing and transmitting the issued event message and the content.

As a result, the manually issued type event message defined in the content production stage is stored in the sending device after being cut out by the authoring device. There is no need to create a new event message.
In other words, in the sending device, the operator only needs to create and issue only a sudden event message of a type that was unexpected at the stage of content creation. Also, HT
It is possible to define a manually issued event message using a markup language such as ML, and it is easy to maintain compatibility with other description languages.

In the generating step, event definition information including an event message and tag information is generated, and the tag information is stored in the event information immediately when there is a transmission instruction from an authoring apparatus operator. The message may be issued to the sending device, and may be information for identifying the authoring device as an event message to be sent from the sending device.

The event message sending method further includes a step of extracting the event definition information from the content added in the adding step by using the tag information as a clue, and authoring the event message in the extracted event definition information. A recording step of recording in a storage unit provided in the device, an issuing step of issuing an event message recorded in the storage unit to the transmission device according to a transmission instruction from the operator, and causing the transmission device to transmit the event message; A multiplexing step of multiplexing and transmitting the event message and the content issued from the authoring device in accordance with the transmission instruction may be included.

As a result, it is possible to generate, accumulate, and issue a manually issued event message not in the sending device but in an upstream process thereof. Therefore, the efficient operation of creating event messages that can be expected at the time of authoring at the time of content creation and creating and issuing only urgent and unpredictable event messages with the conventional sending device is an efficient operation. It becomes possible. In addition, it is possible to define a manually issued event message using a markup language such as HTML, and it is easy to maintain compatibility with other description languages.

Further, the event message sending method may include an obtaining step of obtaining the content to which the event definition information is added from the outside, and the extracting step may cut out the event definition information from the content obtained by the obtaining step. Good. Note that, in the acquiring step, the content may be acquired via a portable recording medium, or the content may be acquired via a network.

As a result, it is possible to acquire the content created by another authoring device via a recording medium and a network, and to generate, accumulate, and issue a manually issued event message for the acquired content. it can. An event message generating method in the authoring apparatus according to the present invention is an event message generating method in the authoring apparatus, wherein event definition information defining an event message to be transmitted immediately when a transmission instruction is given from an operator. And an adding step of adding the event definition information generated by the generating step to the content.

Thus, in the content production process, the creator can define (generate) not only the event processing programming using the manually issued event message but also the predictable manually issued event message.
Since the event processing programming and the event definition are performed in different devices as in the related art, the work is not complicated.

Here, the generating step generates event definition information including an event message and tag information. The tag information is used to transfer the event message to a transmitting device in advance, and to receive an event message from an operator of the transmitting device. The information may be information that causes the authoring apparatus to identify an event message to be immediately transmitted from the transmission apparatus when a transmission instruction is issued.

The event message generating method further includes a step of extracting the event definition information from the content added by the adding step using the tag information as a clue, and transferring the extracted event definition information to a transmission device. And a transfer step. As a result, the manually issued event messages defined in the content production stage are stored in the sending device after being cut out by the authoring device. There is no need to create a new one. In other words, in the sending device, the operator only needs to create and issue only a sudden event message of a type that was unexpected at the stage of content creation. Also, HTML
It is possible to define a manually issued event message using a markup language such as, and it is easy to maintain compatibility with other description languages.

In the generating step, event definition information including an event message and tag information is generated, and the tag information is stored in the event information immediately when there is a transmission instruction from an authoring apparatus operator. The message may be issued to the sending device, and may be information for identifying the authoring device as an event message to be sent from the sending device.

The event message generating method further includes a step of extracting the event definition information from the content added by the adding step using the tag information as a clue, and authoring the event message in the extracted event definition information. The recording method may include a recording step of recording in a storage unit provided in the device, and an issuing step of issuing an event message recorded in the storage unit to a transmission device and transmitting the event message to the transmission device according to a transmission instruction from an operator. .

As a result, it is possible to generate, accumulate, and issue a manually issued event message not in the sending device but in an upstream process thereof. Therefore, the efficient operation of creating event messages that can be expected at the time of authoring at the time of content creation and creating and issuing only urgent and unpredictable event messages with the conventional sending device is an efficient operation. It becomes possible. In addition, it is possible to define a manually issued event message using a markup language such as HTML, and it is easy to maintain compatibility with other description languages.

Further, the event message generating method may include an obtaining step of obtaining the content to which the event definition information is added from outside, and the extracting step may cut out the event definition information from the content obtained by the obtaining step. Good. Note that, in the acquiring step, the content may be acquired via a portable recording medium, or the content may be acquired via a network.

Thus, it is possible to acquire the content created by another authoring device via a recording medium and a network, and to generate, accumulate, and issue a manually issued event message for the acquired content. it can. Further, an event message sending method in a sending device according to the present invention is a method for sending an event message in a sending device for sending content sent from an authoring device, wherein an event message in event definition information transferred from the authoring device is sent. A recording step of recording in a storage unit provided in the apparatus, an issuing step of issuing an event message recorded in the storage unit according to a sending instruction from an operator, and multiplexing and sending the issued event message and content. And a multiplexing step.

As a result, the manually issued event message defined in the content creation stage is stored in the sending device after being cut out by the authoring device. There is no need to create a new event message.
In other words, in the sending device, the operator only needs to create and issue only a sudden event message of a type that was unexpected at the stage of content creation.

Further, a computer-readable recording medium according to the present invention is a computer-readable recording medium in which event definition information defining an event message generated in an authoring device and transmitted from a transmitting device to a receiving device is recorded. The event definition information recorded on the recording medium includes an event message and tag information, and the tag information transfers the event message to a transmitting device in advance, and receives a message from an operator of the transmitting device. When the transmission instruction is issued, the information is information that allows the authoring apparatus to identify an event message to be transmitted immediately from the transmission apparatus.

Note that the event definition information recorded on the recording medium includes an event message and tag information, and the tag information is immediately transmitted when an instruction for transmission from the authoring apparatus operator is issued. The event message may be issued to the sending device, and the information may be information for identifying the authoring device as an event message to be sent from the sending device.

Further, the recording medium may record a program describing the contents to be processed when the receiving device receives the event message. Such data broadcasting content includes not only event processing using a manually issued event message but also a definition statement of an event message that can be expected, so that it is synchronized with event information asynchronously transmitted from a broadcasting station. It is possible to provide a high-performance service of causing a receiver to execute a certain process.

As described above, according to the present invention, operations at a broadcasting station relating to generation, storage, and issuance of a manually issued event message are facilitated, and its practical value is extremely high.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a configuration of a digital broadcasting system according to a first embodiment of the present invention.

FIG. 2 is a functional block diagram illustrating a configuration of a digital broadcasting system according to Embodiment 1 of the present invention.

FIG. 3 is an example of a program list showing contents of a content configuration information file according to the first embodiment.

FIG. 4 is a display example of a screen provided in a manually issued type event message generating and issuing unit.

FIG. 5 is a flowchart showing an operation procedure from generation to issuance of a manually issued event message by the digital broadcasting system.

FIG. 6 is a screen display example of a receiver when a broadcast by the digital broadcasting system is received, showing an example before an event message is sent.

FIG. 7 shows an example of a screen display of the receiver, immediately after an event message is sent.

FIG. 8 is a schematic diagram showing a configuration of a digital broadcasting system according to a second embodiment of the present invention.

FIG. 9 is a functional block diagram showing a configuration of a digital broadcasting system according to a second embodiment of the present invention.

FIG. 10 is an example of a program list showing contents of a content configuration information file according to the second embodiment.

FIG. 11 is a display example of a screen provided in an instant registration event message selection unit.

FIG. 12 is a flowchart showing an operation procedure from generation to issuance of an instant registration event message by the digital broadcasting system.

FIG. 13 is a functional block diagram showing a configuration of a digital broadcasting system according to a third embodiment of the present invention.

FIG. 14 is a file structure diagram when a manually issued event message is defined in an external reference file.

FIG. 15 is a functional block diagram showing a configuration of a conventional digital broadcasting system.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 Digital broadcasting system 11, 12 Authoring device 110 Transmission system 101 Authoring unit 101a Manually issued event message generating unit 113 Manual issued event message generating and issuing unit 113a Manually issued event message storage unit 113b Manual issued event message 120 Content storage unit 121 content 122 content configuration information file 122a content configuration information 122b data carousel definition statement 122c video / audio stream definition statement 122d time-specified event message definition statement 122e manually issued event definition information 123 scene information file group 123a scene information file 124 mono media Information file group 130 Content registration unit 131 Manual issue type event message extraction Reference Signs List 200 Digital broadcasting system 21, 22 Authoring device 210 Transmission system 201 Authoring unit 201a Instant registration event message generation unit 213 Event message transmission control unit 220 Content storage unit 221 Content 222 Content configuration information file 222a Content configuration information 222b Instant registration event definition information 223 Scene information file group 223a Scene information file 224 Monomedia information file group 230 Content registration unit 231 Instant registration event message cutout unit 232 Instant registration event message selection unit 233 Instant registration event message storage unit 233a Instant registration event message 300 Digital broadcasting system 31 Authoring Device 330 Content registration unit 340 I / O unit 4 0 content structure information file 401 external reference file

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Junichi Hirai 1006 Kazuma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd.

Claims (37)

[Claims] 1. A digital broadcasting system comprising an authoring device and a sending device for sending content sent from the authoring device, wherein the authoring device sends the content immediately upon receiving a sending instruction from an operator. A digital broadcasting system, comprising: generating means for generating event definition information defining an event message to be generated; and adding means for adding the event definition information generated by the generating means to the content. 2. The generating means generates event definition information including an event message and tag information. The tag information is used to transfer the event message to a transmitting device in advance and transmit the event message from an operator of the transmitting device. 2. The digital broadcasting system according to claim 1, wherein the information is information for causing the authoring device to identify an event message to be immediately transmitted from the transmitting device when instructed. 3. The authoring apparatus further includes: a cutout unit that cuts out the event definition information from the content added by the adding unit using the tag information as a clue; and a transfer unit that transfers the cutout event definition information to a sending device. And a storage unit for storing an event message in the event definition information transferred from the authoring device, and an event message stored in the storage unit according to a transmission instruction from an operator. 3. The digital broadcasting system according to claim 2, comprising: issuing means for issuing; and multiplexing means for multiplexing and transmitting the issued event message and the content. 4. The generating means generates event definition information including an event message and tag information, and the tag information is transmitted to the event immediately upon receiving a transmission instruction from an authoring apparatus operator. 2. The digital broadcasting system according to claim 1, wherein the information is information for issuing a message to a sending device and identifying the event message to be sent from the sending device to the authoring device. 5. The authoring apparatus further includes: a cutout unit that cuts out the event definition information from the content added by the adding unit using the tag information as a clue; and a storage that stores an event message in the cutout event definition information. Means for issuing an event message stored in the storage means to a sending device in accordance with a sending instruction from the operator, and issuing the event message to the sending device, and sending the event message to the sending device. 5. The digital broadcasting system according to claim 4, further comprising: multiplexing means for multiplexing and transmitting the event message and the content issued from the authoring device in accordance with the instruction. 6. The authoring apparatus further comprises: acquiring means for acquiring content to which event definition information is added from the outside, wherein the extracting means cuts out the event definition information from the content acquired by the acquiring means. 6. The digital broadcasting system according to claim 3, wherein: 7. The digital broadcasting system according to claim 6, wherein said acquisition means acquires said content via a portable recording medium. 8. The digital broadcasting system according to claim 6, wherein said acquisition means acquires said contents via a network. 9. An authoring device, comprising: generating means for generating event definition information for defining an event message to be transmitted immediately upon receiving a transmission instruction from an operator; and an event definition generated by the generating means. An authoring apparatus, comprising: an adding unit that adds information to content. 10. The generating means generates event definition information including an event message and tag information, wherein the tag information transmits the event message to a transmitting device in advance and transmits the event message from an operator of the transmitting device. 10. The authoring apparatus according to claim 9, wherein the information is information for causing the authoring apparatus to identify an event message to be immediately transmitted from the transmission apparatus when instructed. 11. The authoring apparatus further includes: a cutout unit that cuts out the event definition information from the content added by the adding unit using the tag information as a clue; and a transfer unit that transfers the cutout event definition information to a sending device. The authoring apparatus according to claim 10, comprising: 12. The generating means generates event definition information including an event message and tag information, and the tag information is transmitted to the event information immediately upon receiving a transmission instruction from an authoring apparatus operator. 10. The authoring apparatus according to claim 9, wherein the information is information for issuing a message to the transmitting apparatus and identifying the event message to be transmitted from the transmitting apparatus to the authoring apparatus. 13. The authoring apparatus further includes: a cutout unit that cuts out the event definition information from the content added by the adding unit using the tag information as a clue; and a storage that stores an event message in the cutout event definition information. 13. The authoring method according to claim 12, further comprising: issuing means for issuing an event message stored in the storage means to a sending device in accordance with a sending instruction from an operator, and sending the event message to the sending device. apparatus. 14. The authoring apparatus further comprises: an acquiring unit for acquiring content to which event definition information is added from the outside, wherein the extracting unit extracts the event definition information from the content acquired by the acquiring unit. 14. The method according to claim 11, wherein:
Authoring device as described. 15. The authoring apparatus according to claim 14, wherein the acquisition unit acquires the content via a portable recording medium. 16. The authoring apparatus according to claim 14, wherein the acquisition unit acquires the content via a network. 17. A sending device for sending a content sent from an authoring device, comprising: a storage unit for storing an event message in event definition information transferred from the authoring device; and a storage unit according to a sending instruction from an operator. A sending device comprising: issuing means for issuing an event message stored in the means; and multiplexing means for multiplexing and sending the issued event message and content. 18. An event message sending method in a digital broadcasting system comprising an authoring device and a sending device for sending content sent from the authoring device, wherein the event message is sent immediately when a sending instruction is given from an operator. An event message sending method, comprising: a generating step of generating event definition information defining an event message to be added; and an adding step of adding event definition information generated by the generating step to content. 19. The generating step generates event definition information including an event message and tag information, wherein the tag information transmits the event message to a transmitting device in advance and transmits the event message from an operator of the transmitting device. 19. The event message sending method according to claim 18, wherein the information is information for identifying the authoring device that the event message is to be sent immediately from the sending device when instructed. 20. The event message sending method,
Further, a cutout step of cutting out the event definition information from the content added by the adding step using the tag information as a clue; a transfer step of transferring the cutout event definition information to a sending device; and an event definition transferred from the authoring device. A recording step of recording an event message in the information in a storage unit provided in the transmission device, an issuance step of issuing an event message recorded in the storage unit in accordance with a transmission instruction from an operator, and an issued event message. 20. The event message sending method according to claim 19, further comprising: a multiplexing step of multiplexing and sending the content. 21. The generating step generates event definition information including an event message and tag information, and the tag information is stored in the event information immediately when there is a transmission instruction from an authoring apparatus operator. 19. The event message transmission method according to claim 18, wherein the message is information for issuing a message to a transmission device and identifying the event message to be transmitted from the transmission device to the authoring device. 22. The event message sending method,
Further, a cutout step of cutting out the event definition information from the content added by the adding step using the tag information as a clue, a recording step of recording an event message in the cutout event definition information in a storage unit provided in the authoring device, An issuing step of issuing an event message recorded in the storage unit to the sending device according to a sending instruction from the operator and causing the sending device to send the event message; and an event message issued from the authoring device according to the sending instruction from the operator. 22. The method for transmitting an event message according to claim 21, further comprising: a multiplexing step of multiplexing and transmitting the content and the content. 23. The method for sending an event message,
23. An acquiring step of acquiring content to which event definition information is added from the outside, and wherein the extracting step extracts the event definition information from the content acquired by the acquiring step. The described event message sending method. 24. The method according to claim 23, wherein the acquiring step acquires the content via a portable recording medium. 25. The event message sending method according to claim 23, wherein the obtaining step obtains the content via a network. 26. A method for generating an event message in an authoring device, comprising: a generating step of generating event definition information for defining an event message to be transmitted immediately upon receiving a transmission instruction from an operator; An adding step of adding the generated event definition information to the content; and a method of generating an event message. 27. The generating step generates event definition information including an event message and tag information, wherein the tag information transmits the event message to a transmitting device in advance and transmits the event message from an operator of the transmitting device. 27. The event message generating method according to claim 26, wherein the information is information for causing the authoring device to identify an event message to be immediately transmitted from the transmitting device when instructed. 28. The method of generating an event message,
The method further comprises: a cutout step of cutting out the event definition information from the content added by the adding step using the tag information as a clue; and a transfer step of transferring the cutout event definition information to a sending device. Item 29. The event message generation method according to Item 27. 29. The generating step generates event definition information including an event message and tag information, and the tag information is stored in the event information immediately when there is a transmission instruction from an authoring apparatus operator. 27. The event message generating method according to claim 26, wherein the message is information for issuing a message to a sending device and identifying the event message to be sent from the sending device to the authoring device. 30. The method of generating an event message,
Furthermore, a cutout step of cutting out the event definition information from the content added by the adding step using the tag information as a clue; a recording step of recording an event message in the cutout event definition information in a storage unit provided in the authoring device; 30. An event message generation method according to claim 29, further comprising: issuing an event message recorded in the storage unit to a transmission device in accordance with a transmission instruction from an operator, and causing the transmission device to transmit the event message. . 31. The method of generating an event message,
31. An acquiring step of acquiring content to which event definition information is added from the outside, and wherein the extracting step extracts the event definition information from the content acquired by the acquiring step. The event message generation method described. 32. The method according to claim 31, wherein the acquiring step acquires the content via a portable recording medium. 33. The event message generation method according to claim 31, wherein the obtaining step obtains the content via a network. 34. A method for transmitting an event message in a transmitting device for transmitting a content transmitted from an authoring device, the recording step of recording an event message in event definition information transferred from the authoring device in a storage unit provided in the transmitting device. And an issuing step of issuing an event message recorded in the storage unit in accordance with a sending instruction from an operator; and a multiplexing step of multiplexing and sending the issued event message and content. Characteristic event message sending method. 35. A method as claimed in claim 35, wherein the method is generated in an authoring device,
A computer-readable recording medium on which event definition information defining an event message transmitted from a transmission device to a reception device is recorded, wherein the event definition information includes an event message and tag information, and the tag information Is the information that transfers the event message to the sending device in advance, and when the sending device is instructed by the operator of the sending device, the authoring device immediately identifies the event message to be sent from the sending device. A computer-readable recording medium that records this. 36. The method as claimed in claim 36, wherein the method is generated in an authoring device,
A computer-readable recording medium on which event definition information defining an event message sent from a sending device to a receiving device is recorded, wherein the event definition information includes an event message and tag information, and the tag information Is the information that immediately issues the event message to the sending device when there is a sending instruction from the authoring device operator, and that the authoring device identifies the event message to be sent from the sending device. A computer-readable recording medium on which is recorded. 37. The computer-readable recording medium according to claim 35, wherein the recording medium further records a program describing contents to be processed when the receiving device receives the event message.