JP2001268480A - Data broadcasting program test viewing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily verify the failure of a data broadcasting program in a short time. SOLUTION: When a program is specified from a user I/F part 210, a program file acquisition part 202 acquires the program materials, program MM code and control information of the specified program from a storage device 104. Among them, the program materials are decoded in a decoder 203. In the meantime, the program MM code is interpreted in an MM code processing part 204 and the spatial and temporal arrangements of the respective decoded program materials are decided. Corresponding to the spatial and temporal arrangements, the respective program materials are composited, reproduced and outputted by program material reproduction processings parts 206 and 207. In the device constitution, by a control information processing part 205, the acquired control information is interpreted and the control information is reported to the MM code processing part 204 based on the processing and execution form of the control information specified by a user. Thus, the control information is processed and executed in the form specified by the user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data broadcasting program trial listening apparatus used for a data broadcasting program producing system and listening to a data broadcast program produced by the data broadcasting program producing apparatus.

[0002]

2. Description of the Related Art Conventional teletext broadcasting, IT (Interactiv
e Television) In data broadcasting represented by broadcasting, in addition to main broadcast data such as audio and video, additional information data such as still images and text are multiplexed with the main broadcast data together with control data that controls the behavior during playback. Broadcast,
By displaying the additional information on the receiving terminal according to the received control data, a multimedia service including a function of displaying a text, a still image, or an interaction with a user has been provided. It is expected that multimedia data broadcasting will be utilized more than ever in BS digital broadcasting scheduled to start at the end of 2000.

[0003] These data broadcast programs are mainly created by a program provider using a data broadcast program production device, delivered to a broadcasting station, and broadcast. At the time of production of the program or at a broadcasting station as appropriate, a data broadcast program trial listening apparatus is used to check the appearance of the program or whether there is any malfunction in the function.

[0004] By the way, it is anticipated that the advertising expenditure income of the broadcasting industry as a whole will be almost unchanged. On the other hand, it is expected that BS and terrestrial broadcasting will have more channels due to digitization, and eventually more programs. For this reason, program production at lower cost is the key to multichannel and program conversion, and there is a demand for cost reduction in the program trial listening process as one of production cost reduction means.

[0005] Further, as a standard for BS digital broadcasting, a method of changing the behavior of a program being received by a receiver through control information on a program being broadcast transmitted from a broadcasting station has been studied. The control information used in this method includes an identifier for specifying a program, a message ID for specifying a message in the program, a processing method when a message arrives at a receiving terminal, a message content, and the like. At the time of program production, this control information and a procedure corresponding to this message are defined. When receiving the control information transmitted from the station, the receiving terminal executes a corresponding procedure to change the behavior of the program such as replacing a predetermined character string.

There is no such concept in the conventional data broadcasting. Therefore, the data broadcasting program preview device is not supported. When the control information system is operated, it is desirable that the trial listening device not only responds to this, but also simplifies the program trial listening process using this control information.

[0007]

As described above, in the development of a program listening apparatus, it has been desired to simplify and reduce the cost of the program listening process using control information that has been newly standardized and available. I have.

[0008] The present invention solves the above-mentioned problems, and makes it possible to easily and quickly verify a program defect using control information, thereby reducing a program production cost. It is intended to provide a device.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a data broadcast program trial listening apparatus according to the present invention has the following characteristic configuration.

(1) A program material file stored in a data broadcast program storage device, a program multimedia code file representing spatial and temporal arrangement information of each program material, and a program for controlling this program from a broadcast station side In a data broadcast program viewing apparatus for viewing a data broadcast program including a control information file including at least one set of control information identifiers and control information transmission times as control information, a user interface unit receiving a trial program designation from a user, A program file acquisition unit that acquires a program material file, a program multimedia code file, and a control information file of a program designated by the data broadcast program storage device in response to a program designation from the user interface unit; A decoder for decoding the obtained program material file; A multimedia code processing unit that interprets the program multimedia code file acquired by the set file acquisition unit and determines the spatial and temporal arrangement of each program material decoded by the decoder; and the multimedia code processing unit. According to the spatial and temporal arrangement determined by the above, the program material reproduction processing unit that synthesizes and reproduces and outputs each program material decoded by the decoder, and interprets the control information file acquired by the program file acquisition unit. A control information processing unit for notifying control information to a multimedia code processing unit, and control information designating means for designating a processing and an execution form of the control information in the control information processing unit, the form being specified by the user. In the processing of the control information,
Execution is performed.

(2) In the configuration of (1), the control information processing section processes and executes the control information at a time interval designated by the user through the control information designating means as a control information processing and execution form. It is characterized by the following.

(3) In the configuration of (1), the control information processing section processes and executes the control information every time a user instructs execution through the control information designating means as a control information processing and execution mode. It is characterized by the following.

(4) In the configuration of (1), further, control information presenting means for presenting at least a part of the control information interpreted by the control information processing section to a user, and a control presented by the control information presenting means. Control information selection means for allowing the user to select information, the control information processing unit,
Before processing and executing the control information designated by the user by the control information selecting means, all the control information to be processed and executed before that is processed and executed.

(5) In any one of the constitutions (1) to (4), further, the multimedia code processing section reproduces the program material based on the control information transmission time notified from the control information processing section. (1) A reproduction control means for controlling a reproduction state of a program material including a time is provided.
In the configuration (1), the data broadcast program can be verified and confirmed more flexibly by processing and executing the execution form of the control information in a method designated by the user.

The configuration of (2) provides means for processing and executing control information at each time interval specified by the user as an execution form of (1). Accordingly, it is possible to periodically verify and confirm each control information without specifying each execution.

However, in the configuration (2), since the control information is processed and executed at a predetermined time interval, the user may not have enough time to confirm a change in the content of the data broadcast program. . If the predetermined time interval is too large, the listening time may be too long.

The configuration (3) provides means for processing and executing control information for each execution instruction from a user in order to solve such a problem. This allows the user to sequentially execute the control information at a desired timing, and it becomes easier to confirm the change of the data broadcast program contents.

However, in the configuration (3), the processing and execution of the control information must be performed sequentially, and the user must give an execution instruction for each control information.

The configuration (4) has a means for presenting a part or all of the control information to the user, a means for the user to select the presented control information, and a specification by the user in order to improve such operability. Before processing and executing the control information
It provides means for processing and executing all control information to be processed and executed before that. As a result, the user can listen to the audition from any control information.

However, in the configurations (1) to (4), the execution of the control information is not synchronized with the reproduction state of the program material including the time information such as the moving image and the audio.

In the configuration of (5), taking this point into account, the reproduction for controlling the reproduction state of the program material including the time information such as the moving image and the audio based on the control information transmission time notified from the control information processing section. It is characterized by providing control means. This makes it possible to synchronize the execution of the control information with the reproduction state of the program material including the time information such as the moving image and the audio, so that more accurate trial listening can be performed.

[0022]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(First Embodiment) FIG. 1 shows a general basic configuration of a data broadcast program production system applied to this embodiment. The data broadcast program production system 101 includes a program material editing device 102 for taking in and editing program material files (hereinafter simply referred to as program materials or program files) such as text, still images, moving images, and audio, and an edited program. A program production apparatus 103 for creating a data broadcast program based on an MM (multimedia) code file that describes the spatial and temporal arrangement of program materials by combining the materials, and these program materials and information related to the produced programs. It comprises a storage device 104 for storing MM code files (including MM code files) and a data broadcast program trial listening device 105 for confirming the content and behavior of the produced program, and they are mutually connected via a LAN or the like. The present invention is shown in FIG.
Of the program preview device 105 of FIG.

FIG. 2 shows the data broadcasting program trial listening device 105.
1 shows the overall basic configuration of the first embodiment. This device 105
Are the program preview device main units (for example, PCs) 201 to 207
And the display device 208 and the speaker 20 connected thereto.
9, a user interface (I / F) unit 210 such as a mouse and a keyboard. In FIG. 2, a storage device 104 is a separate device as shown in FIG. 1, and holds a file related to a data broadcast program created by the program production device 103.

The program preview device 105 includes a user I / F unit 210 for receiving a program preview request from a user, and a program file acquisition unit for acquiring a file related to a program specified by the user I / F unit 210 from the storage device 104. 20
2, a decoder 203 that individually decodes program materials such as still images, moving images, and audio obtained by the program file obtaining unit 202, and a spatial and temporal arrangement of the program materials obtained by the program file obtaining unit 202. An MM code processing unit 204 that analyzes an MM code file to be described and determines a spatial and temporal arrangement of images of each program material;
The image processing unit 206, the audio processing unit 207, and the control information file acquired by the program file acquiring unit 202 are analyzed based on the result of the MM code processing unit 204 to combine, display, and output the respective program materials decoded by the MM code processing unit 204. The control information processing unit 205 notifies the MM code processing unit 204 of control information at time intervals specified by the user via the user I / F unit 210.

The program file acquisition unit 202 receives, for example, a program ID of a data broadcast program given by the program production device 103 from the user I / F unit 210 as a program preview request, and accumulates all files related to the program based on the program ID. Obtained from the device 104. Files related to the program include program materials used in the program, for example, audio data, moving image data, image data, text data, and the like, and MM code files that describe the spatial and temporal arrangement of these program materials. There is a control information file that controls the behavior of the program.

The data broadcast program shown in FIG. 3 will be described as an example. In this example, the program starts in 5 minutes to 10 minutes, 10 minutes to 25 minutes,
From 25 minutes to the end of the program, the cooked food drawing (303), the list of ingredients used (302), and the next notice (3
04). Switching between 302 and 304 is performed according to program control information transmitted from the broadcast station side. For example, by selecting a main broadcast / data broadcast switch button on the remote controller, the user can view while switching between the main broadcast screen and the data broadcast screen.

FIG. 4 shows an MM code example describing the spatial and temporal arrangement of the program material in the cooking program. The MM coding method used in this example is W3C (World Wide C
onsortium) (Hyper Text Mark)
up Language) and CSS (Cascading Style Sheet) are partially expanded. In the example of Fig. 4, "msglist" tag, "ms
g "tag is an extended part.

The program materials used in this program include a cooking procedure, a moving image of a progress, a still image data, a still image data of a completed drawing, text data of a material list,
This is the text data of the next notice. Specifically, still image data is specified by <img id = "dekiagari" ... />, and text data is specified by <p id = "textmsg"...></p>.

The spatial arrangement of these materials is shown in FIG.
This is the part specified by e = "".
"position: absolute" specifies absolute position, "top: 10; left: 10" specifies X, Y
Set the upper left of each display area to (10 pixels, 10 pixels) as the origin of the direction.
Specifying "sibility: visible" or "visibility: hidden" indicates that text is displayed and still images are not displayed.

The temporal arrangement of the program material is shown in <msglis in FIG.
t> Describe in the part enclosed by <msg ... /></msglist>.<msg ... /> is a description for linking a message sent from the broadcasting station with a procedure to be processed when the message is received. For example, <msg msgid = "1" action = "
show_text () "/> means that when a message with a message ID of 1 is received, the show_text () function is called.

In the show_text () function, id is "dekiagari"
Indicates that the still image display area is hidden by specifying "hidden", and then the data included in the message sent from the broadcasting station is set in textmsg in the text display area with id "textmsg". .

FIG. 5 shows an example of the control information. The control information includes a data broadcast program ID for specifying the program, a message ID unique within the data broadcast program, and a relative broadcast indicating the timing of how many seconds after the start of the program the control information is transmitted from the broadcast station system. It includes a time, a firing time designation indicating at what timing a message should be processed after receiving control information on the receiver side, and a message content which is additional data unique to each control information.

The specification of the firing time includes "immediate", which indicates that the firing occurs immediately after receiving the control information, and a relative time specification. The message content is in any data format regardless of text data or binary data, and can be omitted. This example shows that there are three types of control information relating to a program with a program ID of 100.
For example, when the broadcast start time is 10:00, the control information with the message ID of 1 is transmitted from the station system at 10:00, and is ignited 600 seconds after reception on the receiver side, that is, at 10:10. And that the message content includes text data consisting of "materials (for four people) ...". Similarly, the control information with the message ID of 2 is 1
It is transmitted from the station system at 0:05, and should be ignited immediately after reception at the receiver side, that is, at 10:05, and the message content is omitted. The same applies to a message with a message ID of 3.

When previewing a data broadcast program as described above, the user first inputs 100 as a program ID to the program file acquisition unit 202 through the user I / F unit 210. Therefore, the program file acquisition unit 202 sets the storage device 104
Get files related to the program from. In this example, a still image data file (303) of a cooking completion diagram, which is a program material, an MM code file (FIG. 4), a program control file (FIG. 5), and a moving image and audio data file (30)
1).

Subsequently, a still image data file and a moving image
The audio data file is appropriately decoded by the decoder 203 in accordance with each encoding method and output to the image processing unit 206 and the audio processing unit 207. MM
The code file is analyzed by the MM code processing unit 204.
The spatial and temporal arrangement of each program material is determined based on the analysis result, and a reproduction instruction of the received data broadcast program is issued to the image processing unit 206 and the audio processing unit 207.

In a normal listening device, control information (FIG. 5) is sequentially notified to the MM code processing section 204 in accordance with the reproduction time of the data broadcast program. For example, since the ignition time of the first control information in FIG. 5 is specified to be 600 seconds after the start of the program, the notification is made when the reproduction time of the data broadcast program reaches 600 seconds. As a result, the MM code processing unit executes the procedure show_text () corresponding to the message ID of 1. Similarly, the third control information is 1500
Show_text () is executed every second. That is, it is necessary to wait 1500 seconds to confirm the operation of the third control information.

Therefore, in the control information processing unit 205 of this embodiment,
The control information is sequentially extracted in the order of the firing time, and is notified to the MM code processing unit 204 at predetermined time intervals, thereby reducing the waiting time.

FIG. 6 shows a specific processing flow. FIG. 6 shows an example in which control information is processed and executed at each time interval designated by the user. The control information processing unit 205 first reads the control information file acquired by the program file acquisition unit 202 (601), and performs relative broadcasting. The values are sorted in ascending order using the value obtained by adding the time and the firing time designation as a key (602). At this time, if the firing time specification is “immediately”, processing is performed assuming that 0 seconds has been specified.

The interval at which control information is notified to the MM code processing unit 204 is specified by the user (603).
From the sorted control information, unprocessed control information is sequentially extracted (604), and it is checked whether the control information has been extracted.
(605).

If unprocessed control data can be obtained in the process 605, the message ID and the message content of the control information are notified to the MM code processing unit 204 (60).
6), the executed flag is set (607), and the processing 6
After waiting for the time designated by the user at 03 (608),
Return to processing 604. If unprocessed control data cannot be obtained in step 605, the processing of the control information file ends.

Taking the control information of FIG. 5 as an example, the control information is sorted in the order of message IDs 2, 1, and 3 (60
2) For example, when the user specifies 10 seconds in 603, the message IDs 2, 1, and 3 are sequentially assigned to the MM at intervals of 10 seconds.
The code processing unit 204 is notified.

The MM code processing unit 204 receives the notification of the message ID and the message content from the control information processing unit 205, and sets a function corresponding to the message ID to <msglist>.
Search from the description in the tag, acti of the corresponding <msg> tag
on Executes the specified function. Therefore, in the above example, the dish completion screen (303), the ingredient list screen (302), and the next notice screen (304) are displayed at intervals of 10 seconds.

FIG. 7 shows an example in which the processing and execution of the control information are sequentially performed while inquiring the user. The time interval designation portion of the process 603 in FIG.
702 and the process 608 is deleted.
Parts performing the same processing as in FIG. 6 are denoted by the same reference numerals.

In FIG. 7, at 701, the user is asked whether to execute the next control information. When the user is ready and presses the execute button (702), control information is acquired and executed as in FIG. 6, and an inquiry to the user is made again (701). If the user interrupts the execution, the process ends. Therefore, in the example of FIG.
Every time the user gives an instruction to execute the control information, a cooked food diagram screen (303), an ingredient list screen (302), and a next notice screen (304) are sequentially displayed.

Next, an example of processing control information to be processed in advance before processing and executing the control information specified by the user will be described with reference to FIGS.

FIG. 8 shows control information to the user, executes control information to be executed in advance before executing the control information selected by the user, and thereafter executes the control information selected by the user. It is a flow chart which showed the flow of processing in the case. Note that parts performing the same processing as in FIG. 6 are denoted by the same reference numerals.

In step 801, control information sorted in the order of notification time is obtained, and all unprocessed control information is presented to the user (801). The user selects the control information to be executed from the presented control information list (802), and the execution flag is set sequentially from the notification time of the selected control information and the head of the sorted control information list. It is checked whether there is control information to be executed before the selected control information by comparing the notification time of the non-existing control information (803).

If the notification time of the control information selected in the process 803 is large, the control information to be compared is obtained (804), and the control information is notified to the MM code processing unit (805). Is set (806), and the process returns to step 803. If the notification time of the control information selected in the process 803 is short, it is determined that there is no control information to be executed in advance, and the control information is notified to the MM code processing unit (807), and the executed flag of the control information is set. (808) It is checked whether or not the executed flags of all the control information are set (809). If there is control information for which the executed flag has not been set, the process returns to step 801.

FIG. 9 shows an example in which control information is presented to the user for the first time. The control information list screen (901) displays a message ID, MM for each of the unprocessed control information.
The notification time from the start of the program to the code processing unit and the message content are displayed (902). The user selects program information from these pieces of control information by using, for example, a mouse, and presses a selection execution button (903) to specify the program information. The example of FIG. 9 is a state where the control information with the message ID of 2 is selected. Here, by pressing the selection execution button, the processing shifts to the processing 804 in FIG.

Next, in step 804, it is checked whether there is control information to be executed in advance. In this case, the notification time of the control information of the message ID 2 is 300 seconds later and is smaller than the notification times of the other message IDs, so it is determined that there is no control information to be executed in advance (803), and the MM code processing unit is notified. (807), and the executed flag is set (80).
8). Here, it is checked whether all control information has been processed (8
09). At this time, the process returns to the process 801 because the message IDs 1 and 3 have not been processed yet.

Next, FIG. 10 shows an example in which the control information is presented again in process 801. This time, since the processed flag of the control information of the message ID 2 is set, only the message IDs 1 and 3 are displayed. If the user selects the message ID 3 and instructs execution, the process 803
To check whether there is control information to be executed in advance. This time the message ID1 is unprocessed and the notification time is message I
Since it is smaller than D3, the process proceeds to the process 804, where the information of the message ID3 is notified to the MM encoding unit (805), the executed flag is set (806), and the process returns to the process 803.

Next, message ID3 is processed in the same manner. Therefore, in response to the selection and execution instruction of the control information by the user, the cooking completion diagram screen (303) is displayed, followed by the next notice screen (304). Material list screen (3
02) is displayed immediately after the message is displayed, so that the user does not see the material list screen (302) as if it were skipped, but it is not possible to process the message ID1 prior to the message ID3. This is important for previewing programs. This is because a process in which there is a dependency between the message ID1 and the message ID3 may be described.

As described above, by executing and executing the execution form of the control information by the method designated by the user, it is possible to listen to the data broadcast program at regular time intervals, sequentially, or from any control information. Thus, it is possible to provide a data program audition apparatus that can easily and quickly check and confirm a data broadcast program.

(Second Embodiment) In the system described in the first embodiment, the control information is processed irrespective of the reproduction state of the program material. However, in the present embodiment, the reproduction state of the program material is And the synchronization of the control information processing.

FIG. 11 shows the configuration of the data broadcast program trial listening apparatus 105 according to the present embodiment. The mechanism for previewing is basically the same as the apparatus of FIG. 2 described in the first embodiment. is there. Therefore, in FIG. 11, the same portions as those in FIG. 2 are denoted by the same reference numerals.

In FIG. 11, the difference from the apparatus of FIG. 2 is that the MM code processing unit 204 has a reproduction time control unit 204a.
Is provided.

That is, in this device, the MM code processing unit 2
At 04, a reproduction time variable indicating the reproduction time of the data broadcast program is managed by the reproduction time control means 204a. The reproduction time is updated based on a system clock (not shown). Further, when the control information is notified from the control information processing unit 205, the decoder 203 updates the playback time according to the notification time of the control information, and instructs the decoder 203 to perform decoding of the moving image, audio, and the like from the updated playback time. It is characterized by instructing. This makes it possible to decode and display a program material that changes on the time axis, such as a moving image and a sound, in synchronization with the processing and execution of the control information, thereby enabling more accurate trial listening.

Further, the control information processing unit 205 monitors the reproduction time managed by the reproduction time control means 204a, and when the notification time of the control information is equal to or longer than the reproduction time, the control information is converted into the MM code. The processing unit 204 is notified. This makes it possible to generate control information in synchronization with the decoding and display of a program material that changes on the time axis such as a moving image and a sound.

FIG. 12 is a flowchart showing the flow of the processing of the MM code processing section including the reproduction time control means 204a. First, an MM code file is obtained and analyzed (120
1) Instruct the image processing unit 206 and the audio processing unit 207 about the spatial arrangement of the analyzed program material (1202).
Up to this point, the same applies to the first embodiment.

Next, a reproduction time variable indicating the time from the start of the program is initialized to 0 (1203), and the decoder 203 is instructed to reproduce from the reproduction time (1204). Decoder 20
3 receives this reproduction instruction and starts decoding.

FIG. 13 is a flowchart showing the flow of control information processing when the MM code processing section 204 receives notification of control information from the program control processing section 205. The MM code processing unit 204 sets the message content of the notified control information in the event object (1301), and from the MM code file, the same msgid as the message ID of the control information.
The <msg> tag having is searched, and the message processing function specified by the action is obtained (1302).

Notification time of control information and reproduction time control means 2
The value of the reproduction time variable of 04a is compared (1301), and if the notification time is larger, the process proceeds to processing 1304; otherwise, the process proceeds to processing 1306.

Next, the notification time of the control information is set in the playback time variable of the playback time control means 204a (1304), and the decoder 203 is instructed to decode from the playback time (1304).
305). The decoder 203 receives this reproduction instruction and starts decoding. Finally, the function searched in the process 1302 is called (1306), and the process ends.

FIG. 14 is a flowchart showing the flow of control information processing in the control information processing unit 205.
First, it is checked whether or not there is unprocessed control information (1401). If there is unprocessed control information, control information with the smallest notification time among them is acquired (1402). In order to check whether this control information should be notified to the MM code processing unit 204, the MM code processing unit 204 uses the reproduction time control unit 2
The playback time variable 04a is obtained (1403), the notification time of the control information is compared with the playback time (1404), and if it should be notified, the control information is notified to the MM code processing unit 204 (1405) and executed. Set the completed flag (140
6). It returns to processing 1401. If not, the process returns to step 1403.

In the process of FIG. 14, the same control information as the process of the control information shown in FIGS.
This is performed independently while performing exclusive control so that the notification is not sent to 04.

As an example, consider the scene 305 shown in FIG. The scene 305 is a scene in which the cooking teacher talks to the viewer 10 minutes after the start of the broadcast, saying, "Display a list of ingredients on the data broadcast screen." Message I of control information shown in FIG.
The control information with D = 1 is for displaying "Materials (for four persons) ..." on the data broadcast screen in synchronization with this timing.

[0086] The previewer listens to the user I / F
It is assumed that the user gives an instruction from the unit 210 and does nothing for 6 minutes after the start of the audition. First, according to the flowchart of FIG.
The reproduction time variable of the code processing unit 204 is initialized to 0, and reproduction of the program material starts. When the reproduction time variable is updated by the system clock to 300 seconds, the notification time of the message ID2 in the control information of FIG. 5 becomes equal to 300 seconds, and the comparison is made in the processing 1404 of FIG. The information is notified to the MM processing unit 204. The notified control information is processed according to FIG.

Specifically, first, the contents of the message are set in the event object (1301), and <msg msgid
= "2"...> is searched from the MM code file of FIG. 5 (1302), and <msg msgId = "2" action = "show_img ()"
/>. Further, the notification time (300 seconds) is compared with the reproduction time variable (1303). If the reproduction time is small, the reproduction time is set to the notification time (1304).
3 is instructed to reproduce from the reproduction time (1305). After that, the show_img () function obtained in the processing 1302 is called, and the processing ends. If the notification time is smaller in the process 1303, the process proceeds to the process 1306.

The reason why the reproduction time and the notification time are compared in the processing 1303 is to prevent the reproduction from being performed after "rewinding". In this way, the control information is automatically processed with the progress of the trial listening of the program, and a cooked figure is displayed on the data broadcast screen 5 minutes after the trial listening starts.

Next, it is assumed that eight minutes after the start of the trial listening, the previewer selects the control information of the message ID 1 and gives an instruction to execute the control information.

In this case, the processing is performed according to FIG. That is, it is first checked in step 803 whether there is control information to be executed in advance. In this case, the notification time 6 of the message ID 1
Since the control information of the message ID2 having the notification time smaller than 00 seconds has already been executed, the process proceeds to the process 807 and is notified to the MM code processing unit 204 as it is. The process of FIG. 13 is performed by this notification. In this case, since the notification time of the message ID1 is 600 seconds, it is longer than the current reproduction time of 480 seconds, and it is determined in step 1303 that the reproduction time of the decoder needs to be changed. In the process 1304, the notification time is set to 600 seconds in the playback time, and in the process 1306, the decoder is instructed to start the playback from 600 seconds, and the function show_text () corresponding to the message ID1 is called in the process 1306. .

As a result, the decoder for moving images and audio
Playback starts from 00 seconds. Therefore, playback starts from the scene where the cooking instructor told the viewer, “Display the ingredients list on the data broadcast screen.” The ingredients list is displayed on the data broadcast screen, and it is possible to preview synchronized programs. Become.

In the above embodiment, the program material is decoded from the notification time of the control information. However, for example, decoding can be performed from a position obtained by adding an offset that can be specified by the user to the notification time. is there. In this way, the user can preview the program before the execution of the control information,
It can be prepared for execution of control information.

Further, in the above embodiment, the decoding method from the reproduction time in each decoder is not particularly described because it is based on the encoding system of each program material, but it is specified in the differential encoding system such as MPEG4. It is also possible to start reproduction from the I frame immediately before the reproduction time. In this way, the user can listen to the trial from the complete image.

In the above embodiment, the control information itself is not changed. However, for example, a user I / F for changing the content of the message may be provided to execute the changed control information. In this way, the user can edit the control information without restarting the program production device, and immediately listen to the result.

Further, in the above embodiment, the user is not notified when the control information is executed. However, the control information can be notified to the user before or after the execution. . Thus, the user can be alerted, and it is possible to more reliably confirm what control information is executed or whether the control information is executed.

[0078]

As described above, according to the present invention, the viewer can instruct the execution of the control information, and the trial listening of the data broadcast program can be performed in a short time.
Furthermore, by changing the reproduction position of the program material in accordance with a control information execution instruction from the user, the control information and the program material can be synchronized and previewed.

As a result, the inspection and confirmation of the data broadcast program can be performed more accurately, and the defect of the program can be easily verified in a short time by using the control information. It is possible to provide a data broadcast program trial listening device capable of reducing the number.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a data broadcast program production system to which the present invention is applied.

FIG. 2 is a block diagram showing a configuration of a data broadcast program preview device according to the first embodiment of the present invention.

FIG. 3 is an exemplary view showing an example of a data broadcast program in the apparatus of the embodiment.

FIG. 4 is an exemplary view showing an example of an MM code file of a data broadcast program in the apparatus according to the embodiment;

FIG. 5 is an exemplary view showing an example of a control information file of a data broadcast program in the device of the embodiment.

FIG. 6 is a flowchart showing an operation of the control information processing unit of the embodiment when processing control information at predetermined time intervals.

FIG. 7 is an exemplary flowchart showing an operation in the case where control information is sequentially processed by a user's specification in the control information processing unit of the embodiment.

FIG. 8 is a flowchart showing an operation of the control information processing unit of the embodiment when processing control information selected by a user's specification.

FIG. 9 is an exemplary view showing an example of a screen in which a user is asked to select and execute control information in the control information processing section of the embodiment.

FIG. 10 illustrates a control information processing unit according to the embodiment.
The figure which shows the example of a screen which asks a user about selection and execution of control information.

FIG. 11 is a block diagram showing a configuration of a data broadcast program preview device according to a second embodiment of the present invention.

FIG. 12 is a flowchart showing an initialization operation of the MM code processing unit according to the embodiment;

FIG. 13 is a flowchart showing the operation of the MM code processing unit according to the embodiment when receiving control information.

FIG. 14 is an exemplary flowchart showing the operation of the control information processing section of the embodiment for automatically performing control information processing;

[Explanation of symbols]

 101: Data broadcast program production system 102: Program material editing device 103: Program production device 104: Storage device 105: Data broadcast program trial listening device 202: Program file acquisition unit 203: Decoder 204: MM code processing unit 204a: Reproduction time control means 205 control information processing unit 206 image processing unit 207 audio processing unit 208 display device 209 speaker 210 user I / F unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) H04N 5/85 H04N 5/85 Z 5/91 5/91 N 5/92 5/92 H 7/025 7 / 08 A 7/03 7/035 F term (reference) 5C025 AA01 AA28 BA28 CA09 CB10 DA05 5C052 AA01 AB03 AB04 CC11 DD04 EE02 EE03 5C053 FA14 FA23 GB11 GB12 GB21 JA07 JA21 KA24 LA06 5C063 AA02 AB01 AC01 DA02 AC03 DA13 EA05 EB37

Claims (5)

[Claims] 1. A program material file stored in a data broadcast program storage device, a program multimedia code file representing spatial and temporal arrangement information of each program material, and control for controlling this program from a broadcast station side A data broadcast program viewing device for viewing a data broadcast program comprising a control information file including at least one set of a control information identifier and a control information transmission time as information, a user interface unit receiving a trial program designation from a user; A program file acquisition unit that receives a program designation from the user interface unit and acquires a program material file, a program multimedia code file, and a control information file of the designated program from the data broadcast program storage device; A decoder for decoding the program material file, and the program A multimedia code processing unit that interprets the program multimedia code file acquired by the file acquisition unit and determines a spatial and temporal arrangement of each program material decoded by the decoder; According to the determined spatial and temporal arrangement, a program material reproduction processing unit that synthesizes and reproduces and outputs each program material decoded by the decoder, and interprets the control information file acquired by the program file acquisition unit, A control information processing unit that notifies control information to a multimedia code processing unit; and a control information specifying unit that specifies a process and an execution mode of the control information in the control information processing unit. A data broadcast program trial listening apparatus, which performs processing and execution of the control information. 2. The control information processing section processes control information,
2. The data broadcast program audition apparatus according to claim 1, wherein as an execution mode, the control information is processed and executed at time intervals specified by a user through the control information specifying means. 3. The control information processing unit processes control information,
2. The data broadcast program audition apparatus according to claim 1, wherein as an execution mode, control information is processed and executed each time a user instructs execution through the control information specifying means. 4. A control information presenting means for presenting to the user at least a part of the control information interpreted by the control information processing section, and a control for allowing the user to select the control information presented by the control information presenting means. An information selection unit, wherein the control information processing unit processes and executes all control information to be processed and executed before processing and executing control information designated by a user by the control information selection unit. 2. The data broadcast program preview device according to claim 1, wherein: 5. A reproduction control means for controlling a reproduction state of a program material including a reproduction time of a program material based on a control information transmission time notified from the control information processing unit. 5. The data broadcast program trial listening device according to claim 1, further comprising: