JP4785543B2 - Mobile communication terminal and control method thereof - Google Patents

Description

  The present invention relates to a mobile communication terminal and a control method thereof.

  In digital television broadcasting, one or more digitally encoded video and audio, as well as data broadcasting content written in a description language called BML (Broadcasting Markup Language), are broadcast, allowing you to view video and audio and digital content. Can be presented to the person. A television receiver (hereinafter referred to as a digital television) that receives a digital television broadcast displays a single video on its display screen and outputs audio in the same manner as when viewing a conventional analog television broadcast. A mode that takes a presentation form (video mode), a mode that takes a presentation form that displays BML content on a full screen (data broadcasting mode), and a mode that displays video and data broadcasting on the same screen (simultaneous display mode) Can do. FIG. 1 shows a display example of the display mode.

  There is also a mobile phone terminal having a function of receiving digital television broadcasting (hereinafter referred to as a mobile phone with a built-in digital TV function). Mobile phones with a built-in digital television function often have a video mode, a data broadcast mode, and a simultaneous display mode. FIG. 1 is a diagram illustrating a screen example of a stationary digital television. A stationary digital TV usually views a screen as shown in FIG. 1 at a distance of several meters, but this viewing mode is a viewing mode for watching a moving image well, and character-centered content such as data broadcasting is displayed. Not suitable for viewing. That is, it is suitable for viewing in the video mode of FIG. 1 (a), but is not suitable for viewing in the data broadcast mode and the simultaneous display mode of FIGS. 1 (b) and 1 (c). Usually, character-centric media, such as books, magazines, and newspapers, are often viewed with a few tens of centimeters in front of the eyes, and reading in that form is good for many people. Of course, data broadcasting content is expected to be created by reducing the number of characters and lines, using a lot of graphics, and devising it in consideration of this, but it cannot be denied that it is harder to see than video. In addition, the amount of information that can be viewed at one time is also limited. In the simultaneous display mode, a high-quality video is reduced and displayed, and it is difficult for the viewer to sufficiently receive information included in the video.

Incidentally, some mobile phones have an infrared communication function and can be used as a remote controller (remote controller) for a stationary television or the like (see Patent Document 1). Using this, it is possible to send the operation performed on the mobile phone as a remote control as it is as a remote control (remote control) signal of the stationary television and operate the data broadcasting of the stationary television at the same time. A mobile phone has a different data broadcast display layout, and the same result cannot be obtained even if an operation on the mobile phone is directly transmitted to a stationary television. That is, the data broadcast operation on the mobile phone cannot be linked as the data broadcast operation on the stationary television.
JP 2001-237925 A

  As described above, there is a problem that the function of data broadcasting such as text cannot be sufficiently utilized only by the conventional stationary television or its remote controller, and the video cannot be sufficiently utilized only by the mobile communication terminal. Further, when considering using a mobile communication terminal as a remote control in data broadcasting, there is a problem that the operation is not linked and a comfortable operation environment cannot be obtained because the screen layout is different from that of a stationary television.

In order to solve the above-described problems, the mobile communication terminal according to the first invention is
The digital TV receiver and the mobile communication terminal receive the same data broadcast, and the page transition of the data broadcast in the mobile communication terminal and the page transition of the data broadcast of the digital TV receiver are linked,
A digital broadcast receiving means for receiving a digital broadcast;
Correspondence between a plurality of access codes (for example, access key codes defined in BML) used for link information included in the data broadcast of the digital broadcast and a remote control (remote control) signal for controlling the digital television receiver Storage means for storing remote control signal generation data defining the relationship;
When link information on data broadcasting is selected, a remote control signal generation that acquires an access code included in the link information and generates a remote control signal corresponding to the access code by referring to the remote control signal generation data Means,
Remote control means (remote control means) for transmitting the generated remote control signal to the digital television receiver and remotely controlling the digital television receiver;
Is provided.

A portable communication terminal according to the second invention is
Control means for controlling the remote control means to switch and select whether or not to transmit the remote control signal is further provided.

A mobile communication terminal according to a third invention is
The storage means stores a plurality of types of remote control signal generation data corresponding to a plurality of types of digital television receivers.

A mobile communication terminal according to a fourth invention is
The remote control means uses an infrared communication method or a wireless communication method (for example, a wireless LAN such as Bluetooth or IEEE802.11b).

As described above, the solution of the present invention has been described as an apparatus. However, the present invention can be realized as a method, a program, and a storage medium storing the program, which are substantially equivalent thereto, and the scope of the present invention. It should be understood that these are also included.
For example, a control method for a mobile communication terminal according to a fifth invention that implements the present invention as a method is as follows:
The digital TV receiver and the mobile communication terminal receive the same data broadcast, and the page transition of the data broadcast in the mobile communication terminal and the page transition of the data broadcast of the digital TV receiver are linked,
A digital broadcast receiving step for receiving the digital broadcast using the receiving means;
Storage means (flash memory, etc.) for storing remote control signal generation data defining a correspondence relationship between a plurality of access codes used for link information included in the digital broadcast data broadcast and a remote control signal for controlling the digital television receiver An acquisition step to acquire from,
When link information on data broadcasting is selected, a remote control signal generation that acquires an access code included in the link information and generates a remote control signal corresponding to the access code by referring to the remote control signal generation data Steps,
A remote control step of transmitting the generated remote control signal to the digital television receiver and remotely controlling the digital television receiver;
Is included.

  According to the present invention, a remote control signal is transmitted to an external stationary television at the same time as selection of data broadcast on the mobile communication terminal, and selection execution is performed synchronously between the mobile communication terminal and the external television. Thus, more comfortable and preferable viewing of digital broadcasting can be realized.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, in order to help understand the principle of the present invention, the operation of the apparatus according to the prior art will be described in detail. Conventionally, if you watch a data broadcast at hand and watch a video on a stationary digital TV, what is mobile? It was necessary to do it with the remote control of another stationary digital TV. Hereinafter, a specific example will be described.

  Digital broadcasting can take a broadcasting form in which a plurality of video streams are broadcasted and switched according to the user's selection (multi-channel broadcasting). In this case, there is a case where the switching of the stream is switched by a user operation in the simultaneous display mode of data broadcasting. FIG. 2 is a diagram showing an example of such a multi-video stream screen. As shown in the figure, in the simultaneous display mode, the screen 1 has a video display area 2 for displaying the video of the selected stream, character information, and a button 4 for selecting a stream ("Keiyoji" in the figure). Data display area 6 including "Horakuji" and "Eihanji").

  FIG. 4 is a plan view of the remote control of the stationary digital television. The button 4 in FIG. 2 corresponds to the color keys C of “blue”, “red”, “green”, and “yellow” on the remote controller as illustrated in FIG. The remote control also has a power key for turning on / off the stationary TV, a channel up / down key for changing the channel, a volume up / down key for changing the volume, and a data broadcasting viewing mode. There is a d (data) key to be changed and a position designation key L (“↑”, “↓”, “←”, “→”, “decision” key) used in data broadcasting. Press the corresponding button on the remote control, or move the focus (operation target area) represented by a frame of some color to the button with the up / down / left / right keys and press the selection key to execute the corresponding operation be able to. In this example, by executing the operation, the corresponding video stream is selected and displayed in the video display area. FIG. 2 shows a screen when “Eihanji” is selected and executed, and an explanation of Eihanji is displayed in the data broadcasting section, and an image of Eihanji is displayed in the video display section. ing. FIG. 3 shows a part of an example of BML description which is such a data broadcasting description language for a stationary television.

  As shown in the example of FIG. 4, the remote control has a data broadcast key d. By pressing this key, the screen mode is switched to the video display mode, the data broadcast mode, and the simultaneous display mode. If there is a description that embeds video in the data broadcast content in the BML description of the data broadcast, the mode is switched to the simultaneous display mode. In order to switch streams, it is necessary to be in the simultaneous display mode. In general, in the simultaneous display mode, since the video is reduced and embedded, the video becomes small. Therefore, as an internal process, a video can be displayed in a large size by providing a mode (enlarged display mode) for outputting the video to the full screen while setting the simultaneous display mode.

  On the other hand, information accompanying data broadcasting can also be viewed on a mobile phone with a built-in digital TV function. In some cases, a mobile phone does not display a moving image but displays information centered on data broadcasting characters on a full screen, so that more information can be displayed than a stationary type. FIG. 5 shows a display example of data broadcasting on a mobile phone, and FIG. 6 shows a part of the BML example.

  Even if data broadcasting for a stationary television and data broadcasting for a portable receiver are broadcast the same content due to the difference in display area, the layout specified by BML is created differently. For example, in a stationary television based on a horizontally long screen, the contents of data broadcasting and buttons are laid out horizontally as shown in FIG. Further, in a mobile phone based on a vertically long screen, the contents of data broadcasting and buttons are arranged vertically as shown in FIG. Normally, the buttons displayed on the mobile phone only have the function of selecting the information displayed by the mobile phone, so to switch the video on the stationary TV, use the remote control on the stationary TV and use the simultaneous display mode. It is necessary to perform a switching operation after switching to, and the operation is complicated.

  In a mobile phone that can be used as a remote control for a conventional stationary TV or the like, the operation as a remote control of the stationary TV and the data broadcasting operation do not work together. Even if an attempt is made to operate the data broadcasting of a stationary TV at the same time as a TV remote control signal, as described above, the display layout of the data broadcasting differs between the stationary TV and the mobile phone, and the operation on the mobile phone remains unchanged. The same result cannot be obtained even if it is sent to a TV.

  FIG. 5 shows an example of a screen when data broadcasting is received by a mobile phone. In the state shown in FIG. 5, for example, to select “Horakuji” from the currently selected “Eihanji”, in the case of a mobile phone, after pressing the “↑” key once, “→ ”Key and then press the“ Enter ”key. In the case of a stationary TV, press the“ ← ”key on the remote control and press the“ Enter ”key, or“ The “red” key must be pressed (see FIG. 2). Even if the mobile phone sends a remote control signal of “↑” or “Decide” corresponding to the operation performed on the mobile phone to the stationary TV, “Horakuji” is not selected, and the displayed video image is also displayed. It does not correspond to "Horakuji".

  It is possible to install keys similar to the remote control such as “red”, “blue”, “green”, “yellow”, etc. on the mobile phone, and use these keys to send remote control signals to control the operation. However, it is not preferable to provide a dedicated key for watching TV on a mobile phone that is restricted. In this way, when viewing a stationary television set with the data broadcast-linked program video in the enlarged display mode and the cellular phone in the data broadcasting reception mode, the data broadcasting receiving function on the cellular phone and the data broadcasting on the stationary television are displayed. In order to synchronize the operation of the reception function, there is a problem that the operation for viewing is complicated.

  Next, FIG. 7 is a block diagram showing a configuration of a stationary digital television receiver suitable for being remotely controlled by the portable communication terminal according to the present invention. As shown in the figure, the stationary digital television receiver 10 selects a digital television signal received by the antenna 11 with the tuner 12 and extracts a transport stream, and inputs it to the TS processing unit 13. The TS processing unit 13 analyzes the transport stream and decomposes it into PSI / SI information / audio stream / video stream / data broadcast stream storing information accompanying broadcast included in the transport stream. The control unit 14 selects a stream to be reproduced based on the extracted PSI / SI information, and instructs the TS processing unit 13 to output a stream to each decoder. The selected audio stream is input to the audio decoder 15 and output from the speaker 18 as an audio signal after decoding / D / A conversion processing. The selected video stream is input to the video decoder 16, decoded, and written to the frame buffer 19. A display (LCD) 20 displays the decoded image written in the frame buffer.

  The data broadcast stream is processed by the data broadcast decoder 17, decoded into a media file such as a BML document or a still image, and sent to the data broadcast processing unit 21. The data broadcast processing unit 21 processes the BML document, draws a data broadcast screen, and writes it in the frame buffer 19. Both the data broadcast content and the moving image decoded by the video decoder 16 are written in the frame buffer 19 and displayed on the display 20.

  The control unit 14 detects a user operation based on a signal from a key 22 installed in the main body or a remote control signal receiving unit that receives a signal transmitted from a remote control (FIG. 4), and determines each processing unit in advance. Make the specified settings.

  The change of the display mode by the d (data) key in FIG. 4 is a toggle format. Each time the key is pressed, the video display mode, the data broadcasting mode (simultaneous display mode depending on the description of BML), and the simultaneous display mode are changed. In this case, the screen is switched to the enlarged display mode when pressed.

  The control unit 14 also manages the display mode. When the display mode is the video mode, the control unit 14 stops the processing of the data broadcast processing unit 21 and instructs the video decoder 16 to output the decoded result image on the entire screen. When the display mode is the data broadcast mode, the control unit 14 instructs the video decoder 16 to stop the decoding process and instructs the data broadcast processing unit 21 to output the entire screen. However, if it is specified to embed and display a video stream in BML, the simultaneous display mode is set.

  In the simultaneous display mode, the control unit 14 instructs the data broadcast processing unit 21 to display in the simultaneous display mode, and from the data broadcast processing unit 21, the video video stream type specified by BML and The position / size information is received, and the TS processing unit 13 is instructed to output the designated stream to the video decoder 16, and the video decoder 16 is instructed to output the moving image at that position.

In the enlarged display mode, the data broadcast processing unit 21 performs BML analysis processing and reacts to the input, but does not draw the data broadcast in the frame buffer. Further, the control unit 14 that has received the stream and position / size specified by BML specifies that the stream specified by the TS processing unit 13 is to be output to the video decoder 16, and at the same time outputs all to the video decoder 16. Instructs drawing on the screen. Table 1 shows the operation of each processing unit in each mode of the stationary digital TV.

  Note that since there is no difference between the video display mode and the enlarged display mode for the viewer (both are full-screen display), the video display mode may not be adopted in an actual television device.

  The communication processing unit 24 is connected to a public communication line such as a telephone line or the Internet, and is used for data transmission / reception in the case of an interactive service. In the data broadcasting mode, simultaneous display mode, and enlarged display mode, when the remote control signal receiving unit 23 receives a signal corresponding to a key installed on the main unit or a key generated by pressing the key 22 on the remote control, the control unit 14 selects the channel. -It is determined whether a key used for control of the entire device such as volume and power source has been pressed, or whether "↑", "↓", "←", "→", "Determination" color keys, etc. used in data broadcasting have been pressed. When a key used for controlling the entire apparatus is pressed, the corresponding control is performed. When a key used in data broadcasting is pressed, the information is transmitted to the data broadcasting processing unit 21. The data broadcast processing unit 21 executes processing when a key described in BML is pressed when a key used in data broadcasting is pressed. Thereby, for example, a transition to another page or another BML document is performed, and as a result, a displayed video stream is changed.

  FIG. 8 is a block diagram showing a configuration example of a mobile phone with a built-in digital TV function according to an embodiment of the present invention. The mobile phone with a built-in digital TV function according to an embodiment of the present invention has a configuration in which a digital TV receiver and a mobile phone are combined by sharing a control unit. Each function described in the configuration of the stationary television has the same function although the performance is reduced from the viewpoint of the size of the device and the power consumption. Therefore, antenna 111, broadcast tuner 112, TS processing unit 113, audio decoder 115, video decoder 116, data broadcast decoder 117, speaker 118, frame buffer 119, display 120, data broadcast processing unit 121, which are similar components The control unit 114 and the key 122 have the same function. As a different configuration, a remote control signal transmission unit 123 that transmits a remote control signal to a stationary digital television is provided. Storage means for storing remote control signal generation data defining a correspondence relationship between a plurality of access codes used for link information included in data broadcast of digital broadcast described later and a remote control signal for controlling the digital television receiver (Not shown), when the link information on the data broadcast is selected, the control unit 114 obtains an access code included in the link information, refers to the remote control signal generation data, and Remote control signal generation means (not shown) for generating a remote control signal corresponding to the access code is provided.

  Next, the function of the communication part will be described in detail. In the communication part, the speech signal received by the communication wireless unit 132 via the antenna 131 is demodulated 133 by the demodulator, decoded into a voice signal by the decoder 134, and then converted into an analog voice signal by the D / A converter 135. Convert and output from the speaker 136. Also, the sound input from the microphone 137 is converted into a digital signal by the A / D conversion unit 138, then compressed and encoded by the encoding unit 139, modulated by the modulation unit 140, and then transmitted by the communication radio unit 132. The radio wave is transmitted from the antenna 131. The control unit 114 performs protocol processing and data communication with the mobile communication network, and inputs and outputs data signals to the modulation unit 140 and the demodulation unit 133. In addition, the control unit 114 draws the display necessary for the telephone function in the frame buffer 119, performs an operation by a user key input, and provides a user interface of the telephone function to the user.

  Data broadcasting is described in a language called BML. FIG. 9 shows an example of a BML document. A BML document is described using XML elements represented by <element name> </ element name>. In a BML document, an anchor element that indicates the function of document transition has an element name a, and several attributes can be specified for the element. The href attribute describes the identifier of the document to be displayed next when the “decision” key is pressed at the portion specified by the anchor element of the document. The access key (accesskey) attribute describes a key code of a key that performs the same processing as when “determine” is pressed on the element when the key is pressed on the remote controller or the like. bgcolor specifies the background color, and fgcolor specifies the character color. The access key attribute is usually used for jumping the operation of selecting the focus by moving the focus to a place where a desired event is defined. Therefore, the access key has a function of selecting an operation (typically jumping to a stretched link) without being affected by the screen layout and without moving the focus. The present invention makes it possible to synchronize screen transitions between a stationary digital television and a portable communication terminal by skillfully utilizing the coding of access codes that are not affected by the screen layout such as access keys. is there.

  Next, the data broadcast receiving operation of the stationary television will be described. FIG. 10 is a flowchart showing a processing flow of the data broadcast processing unit of the stationary television. When the user presses the d (data) key on the remote control to enter the data broadcast mode or the enlarged display mode, the data broadcast processing unit analyzes the document described in BML of the received data broadcast content (step S1). . A method for instructing the portion of the anchor element that is executed when the “determine” key is pressed at that point in the portion designated by the anchor element in the screen is called focus. Normally, the part designated by the anchor element at the upper left of the screen is set as the first focus, which is called focus initialization (step S2). If it is specified that the video stream is embedded and displayed in the BML in the data broadcasting mode, the simultaneous display mode is set.

  In the simultaneous display mode, the video decoder is notified through the control unit so that the video is displayed in the size and position designated by BML. Next, it is determined whether or not it is an enlarged display mode (step S3). In the enlarged display mode, the size designation in BML is ignored and notification is made so that the video is displayed on the full screen. Otherwise, that is, in the case of the data broadcast mode or the simultaneous display mode, a data broadcast screen is drawn based on the analysis result (step S4). In this state, the data broadcast processing unit waits for an event (step S5), and waits for various events of event data transmitted by key or remote control signal or broadcast.

  It moves from the initial focus position by an event that the “↑”, “↓”, “←”, “→” key is pressed (step S6). The focus is usually displayed by drawing a blue frame around the part. Finally, it is determined whether or not to end, and the process ends (step S7).

  FIG. 11 is a flowchart showing the flow of key reception processing in the data broadcast processing unit of the stationary digital television. When receiving a remote control signal or event data received by pressing a key, a remote control key, or the like, the data broadcast processing unit performs processing corresponding to the event. If it corresponds to any key, it is determined what the key is (step S10). If it is the “↑”, “↓”, “←”, “→” key, the focus is moved (step S13), the part that has been focused so far is returned to the normal color, and the new focus is changed. A redrawing process is performed to enclose the part in a frame (step S16), and the process returns to waiting for an event (step S17).

  If the “determine” key is pressed when the part specified by the anchor element is in focus, a process for newly reading the document specified by the anchor element's href attribute is executed (steps S12, S14, S15). ). In this case, the processing of the displayed document ends. Also, when a color key press event occurs, search for an element with the same key code in the access key attribute (step S11), and perform the same processing (page transition) as when “OK” was pressed for the found element Execute.

  With mobile phones with built-in digital TV functions, when the stationary digital TV is set to the enlarged display mode, the user can set the synchronization mode to ON to change the status of data broadcasting on the mobile phone and the data broadcasting of the stationary digital TV. The function to synchronize state transition is enabled. The actual operation will be described below.

  Similarly, when the viewing mode is set to the data broadcast mode or the simultaneous display mode even in the portable digital television built-in mobile phone, the data broadcast processing unit analyzes the document described in BML of the received data broadcast content. When the analysis is completed, the data broadcast screen is drawn based on the analysis result. In this state, the data broadcast processing unit enters an event waiting state, and waits for various events of event data transmitted by key or broadcast.

  FIG. 12 is a flowchart showing a flow of key event processing in a mobile phone with a built-in digital television function. When a key press or event data is received, the data broadcast processing unit performs processing corresponding to the event. If it corresponds to any key, it is determined what the key is (step S20). For example, when the “determine” key press event occurs when the character string specified by the anchor element has focus, a process for newly reading the document specified by the href attribute of the anchor element is executed (step S21, S25), the link destination document is read (step S26). If the key is “↑”, “↓”, “←”, “→”, the focus is moved (step S27), the focus area is returned to the normal color, and the new focus area is framed. A redrawing process is performed (step S28), and the process waits for an event (step S29).

  Before executing step 25, it is determined whether or not the mode is the synchronous control mode (step S22). In the case of the deferred synchronous control mode with a built-in digital TV function, the anchor element has an access key attribute before performing the anchor reading process. For example, the corresponding remote control key signal is generated (steps S23 and S24). Correspondence between the key code specified by the access key attribute and the generated remote control key signal is performed by a correspondence table created in advance. As for the correspondence table, several types of existing stationary TV signal tables are saved, and the table to be used may be switched based on the type of stationary television before trial use, or the actual remote control is generated before use May be received and stored.

  FIG. 13 is a diagram showing an example of a remote control signal table correspondence table used in the present invention. As shown in the figure, the table A is for the stationary television model A, the table B is for the stationary television model B, and so on. In each table, one remote control signal is associated with one key code. If you do not intend to synchronize from the beginning, such as watching another program on a stationary TV and a mobile phone with a built-in digital TV function, set the mobile synchronization mode to OFF to prevent malfunction. .

  By adopting the above configuration, if the access key attribute of the anchor element is matched in the BML description for stationary television and the BML description for mobile reception, the data broadcasting page of stationary television that is not actually displayed The transition and the page transition of the mobile phone data broadcast can be matched. In the enlarged display mode, the stationary television can be prohibited from transmitting data to the outside. This prevents various types of information from being transmitted to the outside or a plurality of pieces of information from being transmitted without being confirmed. However, if data transmission is attempted in the prohibited state, the state of the stationary television and the data broadcasting processing unit with the digital television function built-in will not match, so the display mode will change from the enlarged display mode to the simultaneous display mode, and the stationary television will be The user is able to confirm the current state of the data broadcasting, and urge the user to turn off the stationary synchronous control mode of the mobile phone with a built-in digital TV function.

  As described above, since mobile communication terminals such as mobile phones are used at hand, they are suitable for presenting text media. However, since the screen is small, the point of view of moving images is that of a stationary television. Compared to this, it is not good, and taking advantage of both of these characteristics, a stationary digital TV displays the video in a video mode that displays the video on a full-screen full screen. Viewing content in a data broadcasting mode on a mobile phone with a built-in digital broadcast receiving function and viewing it at hand is a viewing format suitable for the media, so both video and data broadcasting can be viewed satisfactorily. There is an advantage.

  Also, when multiple people watch data broadcasts at home, there are differences in the reading speed and interests of each person, and if there is only one screen of a stationary digital TV, page transition and other information There is also a problem that it is not possible to make transitions as desired by each individual. In this case, each person has a mobile communication terminal with a built-in digital television viewing function, so that the page transition of data broadcasting can be performed on each mobile phone that each person has, and it matches the reading speed and interest of each individual viewing Data broadcasting viewing can be provided.

  Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, in the embodiment, BML has been described as the data broadcasting language, but another language for data broadcasting may be used. The access code is described using an access key code. However, if there is other link information describing a function having an association that does not depend on the same focus position, it can also be used.

It is a figure which shows the example of a screen of a stationary digital television. It is a figure which shows the example of a screen of a multi video stream. It is a figure which shows a part of example of a BML description. It is a top view of the remote control of a stationary digital television. It is a figure which shows an example of a screen when a data broadcast is received with a mobile telephone. It is a figure which shows a part of example of a BML description. It is a block diagram which shows the structure of the stationary digital television receiver suitable for being remotely controlled by the portable communication terminal by this invention. It is a block diagram which shows the structural example of the mobile phone with a built-in digital television function which is one Example of this invention. It is a figure which shows the example of a BML document. It is a flowchart which shows the flow of a process of the data broadcast process part of a stationary television. It is a flowchart which shows the flow of the key reception process in the data broadcasting process part of a stationary digital television. It is a flowchart which shows the flow of the key event process in a digital television function built-in portable. It is a figure which shows an example of the remote control signal table correspondence table used by this invention.

Explanation of symbols

1 screen
2 Video display area
4 Color button
6 Data display area
10 Deferred digital television receiver
11 Antenna
12 Tuner
13 Processing section
14 Control unit
15 audio decoder
16 video decoder
17 Data broadcasting decoder
18 Speaker
19 Frame buffer
20 Display
21 Data broadcasting processor
22 keys
23 Processing section
23 Remote control signal receiver
24 Communication processor
111 Antenna
112 broadcast tuner
113 processor
114 Control unit
115 audio decoder
116 video decoder
117 Data broadcasting decoder
118 Speaker
119 frame buffer
120 Display
121 Data broadcasting processor
122 keys
123 Remote control signal transmitter
131 Antenna
132 Communication radio section
133 Demodulator
134 Decryption unit
135 D / A converter
136 Speaker
137 microphone
138 A / D converter
139 Encoder
140 Modulator C Color key d Data broadcasting key L Position designation key

Claims (5)

The digital TV receiver and the mobile communication terminal receive the same data broadcast, and the page transition of the data broadcast in the mobile communication terminal and the page transition of the data broadcast of the digital TV receiver are linked,
A digital broadcast receiving means for receiving a digital broadcast;
Storage means for storing remote control signal generation data defining a correspondence relationship between a plurality of access codes used for link information included in the data broadcast of the digital broadcast and a remote control signal for controlling the digital television receiver;
When link information on data broadcasting is selected, a remote control signal generation that acquires an access code included in the link information and generates a remote control signal corresponding to the access code by referring to the remote control signal generation data Means,
Remote control means for transmitting the generated remote control signal to the digital television receiver and remotely controlling the digital television receiver;
A mobile communication terminal comprising: The mobile communication terminal according to claim 1,
A mobile communication terminal, further comprising a control unit that controls the remote control unit to switch and select whether to transmit the remote control signal. The mobile communication terminal according to claim 1 or 2,
A portable communication terminal, wherein the storage means stores a plurality of types of remote control signal generation data corresponding to a plurality of types of digital television receivers. In the portable communication terminal according to any one of claims 1 to 3 ,
A portable communication terminal characterized in that the remote control means uses an infrared communication system or a wireless communication system. The digital TV receiver and the mobile communication terminal receive the same data broadcast, and the page transition of the data broadcast in the mobile communication terminal and the page transition of the data broadcast of the digital TV receiver are linked,
A digital broadcast receiving step for receiving the digital broadcast using the receiving means;
Acquisition step of acquiring remote control signal generation data defining a correspondence relationship between a plurality of access codes used for link information included in the data broadcast of the digital broadcast and a remote control signal for controlling the digital television receiver from the storage means When,
When link information on data broadcasting is selected, a remote control signal generation that acquires an access code included in the link information and generates a remote control signal corresponding to the access code by referring to the remote control signal generation data Steps,
A remote control step of transmitting the generated remote control signal to the digital television receiver and remotely controlling the digital television receiver;
A method for controlling a mobile communication terminal including:

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