JP2000125270A - Terminal device, control method for terminal device and recording medium with program recorded thereon - Google Patents

Abstract

PROBLEM TO BE SOLVED: To utilize a video and sound stream in a data broadcast image based on a data broadcast stream by allowing a basic code to store a video and sound broadcast stream meeting a prescribed condition in a storage device and display video contents based on the stored video and sound broadcast stream. SOLUTION: A basic code associated with a received video and sound broadcast stream stores a video and sound broadcast stream meeting a prescribed condition in a storage device. And, when an object based on a data broadcast stream is shown on the screen of a display device, video contents based on the stored video and sound broadcast stream are shown. In this device, an MPEG encoder part 401 encodes video data and audio data stored in a data storing part 101 for video and sound broadcast to generate a video and sound broadcasting stream and also encodes data for broadcast stored in a data storing part 102 for data broadcast to generate a data broadcast stream.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal device, a control method of the terminal device, and a recording medium storing a program for controlling the terminal device.

[0002]

2. Description of the Related Art Conventional broadcasting services only transmit video and audio information constituting a program to viewers as broadcast waves. In recent years, terrestrial television broadcasting has been used as a new method for diversifying information transmission. Terrestrial data broadcasting using the gap (VBI: vertical blanking period) has appeared. In data broadcasting, a broadcasting company distributes data to viewer terminals in the same way as video and audio information of a television, and can provide various services based on the data. As examples of the data broadcasting service, a video-linked service and a data-independent service are known.

[0003] The video-linked service provides more detailed information according to the content of a television program watched by a viewer. For example, a profile of a player or a recipe of a cooking program during sports broadcasting is provided on a television screen. The data independent service provides information such as a television program guide, stock movement, weather, etc., independently of a television program. Such a data broadcasting service can further provide an interactive service by using the Internet or a telephone line.

In the field of broadcasting services, digitization is rapidly progressing, and digital broadcasting using CS (communication satellite) or BS (broadcast satellite) and digital broadcasting using terrestrial waves are being put to practical use. . In digital broadcasting, high-efficiency compression transmission technology enables transmission of large amounts of data. Therefore, if data broadcasting is realized in BS digital broadcasting and the like in the future, it will be possible to transmit a larger volume of data over a wide range and at high speed.

[0005]

As described above, in data broadcasting, various services can be provided by distributing various kinds of data together with video and audio information of a television to a terminal of a viewer.

However, in the above-mentioned conventional data broadcasting service, text data and still image data have only been transmitted to the viewer's terminal due to restrictions on the broadcasting band for data broadcasting. For this reason, the television screen on the viewer side is composed of a screen for normal video and a screen for data broadcasting composed of text and still images.
Therefore, the viewer is forced to view the screen without sharpness as a whole, even though the viewer is watching on a television that can provide dynamic video and audio information.

[0007] Further, in the conventional broadcasting service, the information by the video and audio broadcasting and the information by the data broadcasting are treated independently of each other, so the video and audio information transmitted by the video and audio broadcasting is used for the data broadcasting. I never did. In this case, if the information already transmitted in the video and audio broadcasting can be secondarily used for data broadcasting, the broadcast band can be effectively used and the efficiency is high.

Accordingly, an object of the present invention is to provide a broadcast system that can use a video / audio stream for a data broadcast screen based on a data broadcast stream.

[0009]

Means for Solving the Problems In order to solve the above problems, the present invention is specified as follows.

That is, the present invention is to receive a video / audio broadcast stream having video data and audio data and a data broadcast stream, and determine whether or not a core code associated with the received video / audio broadcast stream satisfies a predetermined condition. And storing the video / audio broadcast stream determined to satisfy the predetermined condition in a storage device, and displaying an object based on the data broadcast stream on a screen of a display device, wherein the stored video / audio broadcast is stored. A terminal device that controls so as to display video content based on a stream.

Here, when the video content is displayed, control is performed such that a still image is displayed by a specific frame among frames constituting the video content.

[0012] Preferably, when displaying the video content, when the video content displayed as the still image is instructed by a user as a video, the video content is controlled to be displayed as a video.

[0013] More preferably, when displaying the video content as a moving image, the video content is controlled to output audio based on audio data synchronized with video data for displaying the moving image.

Preferably, the data broadcast stream is associated with a supplementary code associated with the core code.

In determining whether or not the predetermined condition is satisfied, it is determined whether or not the core code includes a code for instructing storage. Assume that predetermined conditions are satisfied.

Further, in determining whether or not the predetermined condition is satisfied, it is determined whether or not a specific portion of the core code matches a code specified by a user, and it is determined that the codes match. In this case, the predetermined condition is satisfied.

Also, the present invention provides a receiving means for receiving a video / audio broadcast stream having video data and audio data and a data broadcast stream; a first storage means for storing the video / audio broadcast stream; Second storage means for storing a key code associated with the received video / audio broadcast stream, and a determination means for determining whether or not a core code associated with the received video / audio broadcast stream satisfies a predetermined condition. An accumulation control unit for controlling to store an audio broadcast stream in the first storage unit; and a control unit for displaying an object based on the data broadcast stream stored in the second storage unit. Control to display video content based on the video / audio broadcast stream stored in the first storage means An output control unit that is a terminal device characterized by comprising a.

The present invention is also realized as a method invention. Specifically, the present invention receives a video / audio broadcast stream having video data and audio data and a data broadcast stream, and determines whether or not a core code associated with the received video / audio broadcast stream satisfies a predetermined condition. And storing the video / audio broadcast stream determined to satisfy the predetermined condition in a storage device,
A method for controlling a terminal device, comprising: when displaying an object based on the data broadcast stream on a screen of a display device, displaying the video content based on the stored video / audio broadcast stream.

Further, the present invention is also realized as a recording medium recording a program. Specifically, the present invention relates to a recording medium recording a program for controlling a terminal device based on a received video / audio broadcast stream and a data broadcast stream, wherein the program is associated with the received video / audio broadcast stream. Means for determining whether or not the core code satisfies a predetermined condition; storage control means for controlling a video / audio broadcast stream determined to satisfy the predetermined condition to be stored in a storage device;
Output control means for controlling to display video content based on the video / audio broadcast stream stored in the storage device when controlling to display the object based on the data broadcast stream. May be a recording medium recording a program for controlling the terminal device. Here, the video / audio broadcast stream has video data and audio data, and the video / audio broadcast stream and the data broadcast stream are time-division multiplexed to form a transmission stream.

The recording medium includes, for example, a hard disk (HD), a DVD-RAM, a flexible disk (FD), a CD-ROM, and the like, as well as a RAM and an RO.
M and other memories. Further, the computer includes a terminal device including a so-called microcomputer or the like that performs a predetermined process by interpreting a program by a so-called central processing device such as a CPU or an MPU.

[0021]

Next, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment] In this embodiment, MPEG2 corresponding to a digital broadcasting service will be described as an example. MPEG2 is a transport stream (hereinafter referred to as “MP
EG2-TS ". ) Is specified. That is,
In MPEG2-TS, a plurality of individual streams such as a video / audio stream and a data broadcast stream can be transmitted to one channel.

Hereinafter, the present invention will be described in terms of functions, with reference to a functional block diagram constituted by function realizing means.

FIG. 1 is a diagram showing a configuration of a broadcasting system according to the present invention. Specifically, FIG. 1A shows a broadcasting company including an information providing company (hereinafter, generally referred to as a “broadcasting company”). FIG. 2B shows the configuration of the user (viewer).
FIG. 3 is a diagram showing a configuration on the side. In FIG. 1A, a video / audio broadcasting data storage unit 101 stores digital data (hereinafter, referred to as “video / audio data”) including video data (video signal) and audio data (audio signal) for television broadcasting. ) Is stored. These digital data are usually produced and supplied by broadcasters.
The data broadcast data storage unit 102 stores digital data for data broadcast. Digital data for data broadcasting, for example, text data and graphic data,
It consists of programs and various other data.

The main code storage unit 103 stores a main code to be given to video and audio data. The core code is
Information on contents for video and audio data and user terminal device (IRD; Integrated Reciever / Deco
der) includes control information for causing the der) to perform various controls.

FIG. 2 is a diagram showing an example of the core code. The core code is, for example, a variable-length code having a maximum of 84 bytes, and has various attributes such as “title”, “genre”, “expiration date (expiration date)”, “form”, “file capacity”, and “save instruction”. Consists of “Title” indicates the title of the content (hereinafter, referred to as “video content”) based on the corresponding video / audio broadcast stream, and is 60 bytes or less. “Genre” indicates the genre of the video content, and is 1 byte. Here, "D" indicates drama, "C" indicates television commercial (TVCM), "N" indicates news, and "M" indicates a movie. Further, even in the lower layers of these genres, further subdivided codes are appropriately added. The “expiration date” indicates the expiration date of the video content. In the drawing, the expiration date is 21:00 on July 14, 1998.
23:59 September 30, 1998. “Form” indicates the form of the video content, “S” indicates a still image, and “M” indicates a moving image.
“File capacity” is indicated by the playback time (seconds) of the video content. The "save instruction" indicates control information for the terminal device whether to forcibly save the video content. Here, “0” indicates not to be saved (ignored), and “1” indicates forced saving.

The supplementary code storage unit 104 shown in FIG. 1 stores a variable length digital code of up to 316 bytes for supplementing the core code. The supplementary codes include, for example, “broadcasting station” (2 bytes), “production” (20 bytes), “work” (20 bytes), “performer” (48 bytes), “first broadcast date and time” (6 bytes), "keyword"
(20 bytes) and "Description of contents" (200 bytes)
And so on. The above-mentioned core code and supplementary code constitute a video code of up to 400 bytes as shown in FIG.

The stream generator 105 generates a transmission stream by time-division multiplexing the data for video and audio broadcasting and the data for data broadcasting, digitally modulates the data in a predetermined format, and transmits the resultant to the transmitter 106. The transmitting unit 106 transmits the generated transmission stream to a broadcasting satellite.
In addition, when time-division multiplexing is performed, the stream generation unit 105 adds a core code to a video / audio broadcast stream according to a broadcast operation schedule, and adds a supplementary code to the data broadcast stream in addition to the core code.

FIG. 4 is a diagram showing the configuration of the stream generation unit 105. In the figure, the MPEG encoder unit 4
01 stores video data and audio data stored in the video / audio broadcast data storage unit 101 in STC (Sy
The data broadcast stream is generated by encoding (encoding) the data broadcast data stored in the data broadcast data storage unit 102 while encoding (encoding) the data broadcast stream while maintaining the synchronization according to the stem time clock. Generate The MPEG multiplexing unit 402 multiplexes the encoded individual streams to generate one transmission stream. In this case, the MPEG multiplexing unit 402
The base code stored in the base code storage unit 103 and the supplementary code stored in the supplementary code storage unit 104, based on the broadcast operation schedule held in an operation schedule storage unit (not shown) of the broadcast operation management unit 403, It is assigned to each corresponding part of the individual stream. The broadcast operation schedule is data for managing a broadcast time of a broadcast program, a CM, or the like. Digital modulator 40
4, a transmission stream (digital data sequence) transmitted from the MPEG multiplexing unit 402 is transmitted in a predetermined format (for example, Q
(PSK method). The digitally modulated transmission stream is transmitted to the transmission unit 106 and transmitted.

FIG. 5 is a diagram conceptually showing a transmission stream to which a backbone code and a supplementary code are added. As shown in the figure, the transmission stream includes a video / audio stream VAS and a data transmission stream DS, and a backbone code BC is added to the head of the corresponding video content VA. The video content VA is, for example, a broadcast program or C
It indicates one of the divisions of M into a predetermined length (number of seconds). The supplementary codes SC are assigned to correspond to the core codes BC, respectively.

The system configuration on the broadcaster side has been described above. Next, the system configuration of the terminal of the user will be described.

In FIG. 1B, a receiving unit 107 receives a transmission stream transmitted from a transmitting unit 106 via a broadcasting satellite (not shown) and sends it to a stream control unit 108. The stream control unit 108 separates the transmission stream sent from the reception unit 107 into individual streams, decodes the streams, and performs accumulation control of the separated streams or extraction control of the accumulated streams. Details of the stream control unit 108 will be described later.

The video / audio broadcast stream storage unit 109
The video / audio broadcast stream transmitted from the stream control unit 108 is stored, and the data broadcast stream storage unit 110
Stores a data broadcast stream. The user designation code storage unit 111 stores a user designation code for selecting a video content that the user wants to store according to his / her preference. The user-specified code corresponds to the core code, and “genre”, “title”, and the like are input from the input unit 112.

The output control unit 113 includes a stream control unit 1
08, the output devices 114a and 114b are controlled based on the decoded video / audio data or data broadcast data. The output control unit 113 switches between video and audio broadcasting (normal television broadcasting) and data broadcasting according to a switching instruction given from an operation unit (not shown) operated by the user. The output device 114 includes a display 114a, a speaker 114b, and the like.

FIG. 6 is a diagram showing the configuration of the stream control unit 108. In the figure, a stream separation unit 601
Is used to convert a time-division multiplexed transmission stream into a video / audio broadcast stream (VAS) and a data broadcast stream (DS).
And separated into The separated video / audio broadcast stream is V
The data is sent to the AS buffer 602 and the DS buffer 603. The backbone code extraction unit 604 extracts a backbone code from the video / audio broadcast stream held in the VAS buffer and sends it to the backbone code determination unit 605. The backbone code determination unit 605 checks the “save instruction” attribute in the backbone code, and if the storage instruction is “1”, the VAS accumulation control unit 6
In step 06, a save instruction command is sent. Further, the core code determination unit 605 stores the core code and the user-specified code storage unit 11.
Then, a comparison is made with the user-specified code stored in No. 1 to determine whether they match. When determining that the key codes match, the core code determination unit 605 similarly sends a save instruction command to the VAS accumulation control unit 606. VAS accumulation control unit 6
06, when a storage instruction command is transmitted from the core code determination unit 604, the corresponding video / audio broadcast stream is transmitted to the video / audio broadcast stream storage unit 109, and when the storage instruction command is not transmitted, The corresponding video / audio broadcast stream is sent to the VAS decoder unit 606.
The VAS decoder unit 607 decodes the video / audio broadcast stream and sends it to the output control unit 113.

[0036] DS storage control section 608 sends the data broadcast stream to data broadcast stream storage section 110 or sends it to DS decoder section 609 in accordance with the control information given to the data broadcast stream. The DS decoder unit 609 decodes the data broadcast stream and sends it to the output control unit 113 shown in FIG.

The data broadcast control unit 610 extracts data necessary for the screen configuration from the data broadcast data storage unit 110 and sends the data to the DS decoder 609 when there is an instruction to display the data broadcast screen. The data broadcast control unit 610 includes:
In the case where the video / audio broadcast content is embedded in the data broadcast screen based on the control information, the video / audio broadcast stream is extracted from the video / audio broadcast stream storage unit 109 and output to the VAS decoder.

Next, the processing operation of the terminal device configured as described above will be described. FIG. 7 is a diagram for explaining a processing operation of the terminal device, and specifically shows a processing operation for a video / audio broadcast stream. In the figure, a transmission stream received by a receiving unit 107 is separated into a video / audio broadcast stream and a data broadcast stream by a separation unit 601 (STEP 701). The core code extraction unit 604 determines whether or not the video / audio broadcast stream buffered in the VAS buffer 602 includes the core code (STEP 702). (ST
EP 703). Next, the core code extraction unit 604 sets the “save instruction” attribute in the extracted core code to the save instruction “1”.
Is determined (STEP 704), and if it is determined that the “save instruction” attribute is a save instruction, the VAS
The storage control unit 606 sends the video / audio broadcast stream to the video / audio broadcast stream storage unit 109, and the video / audio broadcast stream storage unit 109 stores this (STEP).
705). On the other hand, if it is determined in STEP 704 that the instruction is not a “save instruction”, the core code determination unit 60
No. 5 determines whether there is a matching attribute between the core code and the user-specified code (STEP 706). When it is determined by the core code determination unit 605 that there is a matching attribute, the VAS accumulation control unit 606 similarly sends the video / audio broadcast stream to the video / audio broadcast stream storage unit 109, and Storage unit 1
09 accumulates this (STEP 705).

In the present embodiment, the received
It is assumed that ordinary television broadcasting is performed on the separated video and audio broadcast streams in parallel with storage control based on the core code.

FIG. 8 is a diagram for explaining the processing operation of the terminal device for the data broadcast stream. In FIG. 9A, the transmission stream received by the reception unit 107 is separated into a video / audio broadcast stream and a data broadcast stream by a separation unit 601 (STEP 801A). D
S accumulation control section 608 sends the data broadcast stream buffered in DS buffer 603 to data broadcast stream accumulation section 110 (STEP 802A).

On the other hand, in FIG. 6B, the data broadcast control section 610 determines whether or not there is a display instruction for a data broadcast screen (STEP 801B). In the data broadcast of the present embodiment, a data broadcast screen is displayed according to control data in the stream or according to a user's instruction. If it is determined that there is a data broadcast screen display instruction, data broadcast control section 610 extracts the data broadcast stream stored in data broadcast stream storage section 110 (STEP 802B). After the extracted data broadcast stream is decoded by the DS decoder unit 609, the output control unit 113 composes the data broadcast screen, and determines whether or not there is control to fit the video content in a specific screen area of the data broadcast screen. It is determined whether or not it is (STEP 803B). When it is determined that there is the fitting control, the data broadcast control unit 610 extracts the video / audio broadcast stream stored in the video / audio broadcast stream storage unit 109 (STEP 804B). The extracted video / audio stream is decoded by the VAS decoder 607 and sent to the output control unit 113. The output control unit 113 outputs the video / audio broadcast stream V
According to the backbone code BC given to the AS and the supplementary code SC given to the data broadcast stream DS, display contents based on each stream are synthesized and audio output is performed.

When displaying video content on the data broadcast screen, a still image is displayed by using a specific frame constituting the video content, and a video is displayed by a user's video instruction or the like. May be. In this case, the audio output may be performed in accordance with the video.

Next, an operation example of the terminal device according to the present embodiment will be described. As shown in FIG. 9, it is assumed that video content and data broadcast content are transmitted to a user in respective broadcast bands. The video content includes, for example, a program main body, a TVCM, a program announcement, and the like, and the data broadcast content includes object data for display. The video content is stored in a predetermined storage area of the storage device according to the core code. On the other hand, the data broadcast content is transmitted prior to the video content in which the object data for display is controlled to be inserted.

Now, the user operates the remote controller at hand at the position of arrow (a) in FIG.
If the display is instructed, as shown in FIG.
The television screen is switched to the data broadcast screen, and the video content that has been received and stored so far is displayed in the video content display area of the display frame object 1001. Also, at the position of the arrow (b) in FIG.
If a display instruction is given, as shown in FIG.
The newly received and stored TVCMs 4 and 5 are additionally displayed.

FIG. 11 is a diagram showing another example of the data broadcast screen. FIG. 1 shows a display example of an electronic program guide (EPG). As shown in the figure, the electronic program guide screen displays a program guide including broadcast stations and broadcast times. In each display area of the program guide, text data based on the video code is displayed, and the corresponding video content is displayed as a still image by a specific frame. In the display area of the program guide, there may be no video content, that is, only text data may be displayed.

The user operates the remote controller at hand to instruct reproduction of a specific video content displayed on the program guide. The method of instructing is to select the target by operating the cursor displayed on the electronic program guide screen with the direction keys or to select the target by pressing the next candidate button, but the present invention is not particularly limited to this. .

When a broadcast content in a still image state is designated by a user, a video / audio broadcast stream of the broadcast content is read out and reproduced and displayed on a moving image. FIG.
The balloon portion indicates an example in which a moving image is reproduced and displayed by the viewer.

When there are many contents to be displayed on the data broadcast screen, a scroll bar may be displayed to perform scroll display.

FIG. 12 shows a TVC on the data broadcast screen.
It is a figure showing the example of a display of M screen. In this example, the user has designated a user designation code. That is, the user designates "product name" as "genre", and further designates "soft drink" and "AV equipment" as lower layers. When the user instructs the display of the TVCM screen,
The text data based on the video code and the video content related thereto are displayed. When the user instructs reproduction of a specific broadcast content, the video content is displayed as a moving image, and the audio is output in synchronization with the moving image.

As described above, according to the present embodiment, it is possible to display a video content based on a video / audio broadcast stream that has already been transmitted and stored on the data broadcast screen. Also, a dynamic data broadcasting screen can be provided by displaying a video content displayed on the data broadcasting screen as a still image in a specific frame, displaying a moving image in accordance with a moving image reproduction instruction, and outputting a sound. become.

[0051]

According to the present invention, video contents based on a video / audio broadcast stream can be used for a data broadcast screen. Further, by reusing the already transmitted video / audio broadcast stream, the broadcast band can be used more effectively.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing an example of a core code.

FIG. 3 shows an example of a video code.

FIG. 4 is a diagram showing another example of a data broadcast screen showing the configuration of a stream generation unit.

FIG. 5 is a diagram conceptually showing a transmission stream.

FIG. 6 is a diagram showing a configuration of a stream control unit.

FIG. 7 is a view for explaining the processing operation of the terminal device for the video / audio broadcast stream;

FIG. 8 is a diagram for explaining a processing operation of the terminal device for the data broadcast stream;

FIG. 9 is a diagram illustrating an operation example of a terminal device.

FIG. 10 is a diagram showing an example of a screen for explaining an operation example of the terminal device.

FIG. 11 shows an example of a data broadcast screen.

FIG. 12 is a diagram showing an example of a data broadcast screen.

[Explanation of symbols]

 101: Data storage unit for video / audio broadcasting 102: Data storage unit for data broadcasting 103: Core code storage unit 104: Supplementary code storage unit 105: Stream generation unit 106: Transmission unit 107: Receiving unit 108: Stream control unit 109: Video Audio broadcast stream storage unit 110 Data broadcast stream storage unit 111 User-specified code storage unit 112 Input unit 113 Output control unit 114 Output device

Claims (16)

[Claims] 1. A video / audio broadcast stream having video data and audio data and a data broadcast stream are received, and it is determined whether or not a core code associated with the received video / audio broadcast stream satisfies a predetermined condition; A video and audio broadcast stream determined to satisfy the predetermined condition is stored in a storage device, and when an object based on the data broadcast stream is displayed on a screen of a display device, a video based on the stored video and audio broadcast stream is displayed. A terminal device for controlling content to be displayed. 2. The terminal device according to claim 1, wherein when the video content is displayed, control is performed such that a still image is displayed by a specific frame among frames constituting the video content. 3. The method according to claim 2, wherein when displaying the video content, when the video content displayed as a still image is instructed by a user as a video, the video content is controlled to be displayed as a video. The terminal device as described in the above. 4. The terminal device according to claim 3, wherein when the video content is displayed as a moving image, control is performed so as to output audio based on audio data synchronized with the video data for displaying the moving image. 5. The terminal device according to claim 1, wherein the data broadcast stream is associated with a supplementary code associated with the core code. 6. The method according to claim 1, wherein, when determining whether or not the predetermined condition is satisfied, it is determined whether or not the core code includes a code for instructing storage. The terminal device as described in the above. 7. A method according to claim 1, wherein determining whether the predetermined condition is satisfied includes determining whether a specific portion of the core code matches a code specified by a user. The terminal device according to claim 1. 8. A receiving means for receiving a video / audio broadcast stream having video data and audio data and a data broadcast stream; a first storage means for storing the video / audio broadcast stream; and a first storing means for storing the data broadcast stream. Storage means, a determination means for determining whether or not a core code associated with the received video and audio broadcast stream satisfies a predetermined condition; and a video and audio broadcast stream determined to satisfy the predetermined condition. Storage control means for controlling storage in the first storage means; and first storage means for controlling display of an object based on the data broadcast stream stored in the second storage means. Control for displaying video contents based on the video / audio broadcast stream stored in the computer Terminal apparatus characterized by comprising: a stage, a. 9. The apparatus according to claim 8, wherein said output control means controls to display a still image by a specific frame among frames constituting said video content when displaying said video content. Terminal device. 10. The display control device according to claim 5, wherein when displaying the video content, when the video content displayed as a still image is instructed by a user as a video, the output control means controls the video content to be displayed as a video. The terminal device according to claim 9, wherein: 11. The output control means controls the audio output based on audio data synchronized with video data for displaying the moving image when the moving image is displayed as the moving image. 10
The terminal device as described in the above. 12. The terminal device according to claim 8, wherein the data broadcast stream is associated with a supplementary code associated with the core code. 13. The terminal device according to claim 8, wherein said judging means judges whether or not a code for instructing storage is included in said core code. 14. The apparatus according to claim 8, wherein said judging means judges whether a specific part of said core code matches a code specified by a user.
14. The terminal device according to any one of claims 13 to 13. 15. A video / audio broadcast stream having video data and audio data and a data broadcast stream are received, and it is determined whether a core code associated with the received video / audio broadcast stream satisfies a predetermined condition, A video and audio broadcast stream determined to satisfy the predetermined condition is stored in a storage device, and when an object based on the data broadcast stream is displayed on a screen of a display device, a video based on the stored video and audio broadcast stream is displayed. A method for controlling a terminal device, characterized by controlling to display a content. 16. A recording medium on which a program for controlling a terminal device based on a received video / audio broadcast stream and a data broadcast stream is recorded, wherein the program is such that a core code associated with the video / audio broadcast stream is a predetermined code. Means for determining whether or not a condition is satisfied; storage control means for controlling the storage of the video and audio broadcast stream determined to satisfy the predetermined condition; and displaying an object based on the data broadcast stream. Output control means for controlling display of video content based on the video / audio broadcast stream stored in the storage device when the control is performed so as to control the terminal device. Recording medium on which is recorded.