JP5063894B2 - Digital broadcast receiving apparatus and method - Google Patents

Description

  The present invention relates to a technique for storing and displaying video and data broadcasts in a broadcast receiving apparatus that receives digital broadcast waves.

  Conventionally, in digital broadcasting, video data of broadcast programs, data used in data broadcasting (hereinafter referred to as “data broadcasting”), and the like are transmitted as TS (Transport Stream) packets. Here, data broadcasting refers to a document (BML (Broadcast Markup Language) document) described in a content description language in which XML is expanded for digital broadcasting, image data, moving image data, character data, etc. referred to by the BML document. Say.

  As a technique devised when storing this data broadcast, there is one described in Patent Document 1. Specifically, the digital broadcast receiving apparatus extracts an arbitrary area in the BML document in the data broadcast by a user operation, and uses the extracted part of the BML document to display a document for displaying the area. Generate and save. As a result, it is not necessary to store all data broadcasts in order to display a partial area, and only a part of the data broadcasts need be extracted and stored.

  Further, in order to display the stored data broadcast, a BML analyzer that reads and analyzes the stored BML document is required. For this reason, a digital broadcast receiving apparatus that does not include a BML analyzing unit cannot display a stored data broadcast. Furthermore, in the case of data broadcasting in which the display contents dynamically change according to the user's operation, such as a quiz or a questionnaire, a certain operation is required before displaying the screen that the user wants to see.

  On the other hand, a technique for storing data displayed on a screen as a still image in a digital broadcast receiving apparatus that receives a broadcast including content such as video and audio and displays the content is known.

JP 2003-274309 A

  In the case where the above-described digital broadcast receiving apparatus is a mobile terminal apparatus, if the broadcast is intended for terrestrial digital mobile broadcasts, the display screen is configured with a maximum of 240 × 480 dots (size of BML logical screen). Therefore, when the video data and the data broadcast are displayed on the screen at the same time, all the data broadcasts may not be displayed on the screen. At this time, if the data displayed on the screen is saved as a still image, only the displayed part of all data broadcasts is saved, so that all data broadcasts cannot be saved.

  Further, when only one of the video data and the data broadcast displayed on the screen is saved, when the user sees the saved content after that, only one can be seen. For this reason, it becomes difficult for the user to grasp or remember what the content is.

  Therefore, the present invention has been made to solve the above-mentioned problems, and its purpose is to improve the flexibility of handling these data when displaying stored video data and data broadcasting on a screen. An object of the present invention is to provide a digital broadcasting receiving apparatus and method.

In order to solve the above-described problems, a digital broadcast receiving apparatus according to the present invention is configured to detect a video and a data broadcast related to the video from a received digital broadcast wave, and to perform a storage operation based on the operation. Storage means for storing the detected video and data broadcast as separate still images, respectively, and when the storage means stores the still image of the data broadcast, a storage operation is performed by the user. All the data configured as one screen other than the displayed partial screen data is stored as a still image.

Although the present invention has been described as a digital broadcast receiving apparatus, the present invention can be realized as a method substantially corresponding to these, and the present invention includes a digital broadcast receiving method. That is, the digital broadcast receiving method according to the present invention includes a step of receiving a digital broadcast wave, a step of detecting a video broadcast and a data broadcast related to the video from the received digital broadcast wave, and a storing operation. A step of storing the detected video and data broadcast as separate still images based on the operation, and the step of storing is performed by a user when the still image of the data broadcast is stored. When performed, all data configured as one screen, not just the displayed partial screen data, is stored as a still image.

  ADVANTAGE OF THE INVENTION According to this invention, when displaying the preserve | saved video data and data broadcast on a screen, it becomes possible to provide the digital broadcast receiver and method which can improve the flexibility of handling of these data. . In particular, since the data display area is limited in the mobile portable terminal device, the flexibility in handling data is further improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a digital broadcast receiving apparatus according to an embodiment of the present invention. The digital broadcast receiving apparatus 100 includes an antenna 101, 107, a TV control unit 102, a display unit 103, an LCD (Liquid Crystal Display) 104, a data broadcast processing unit 105, a control unit 106, a telephone unit 108, a still image capture unit 109, A link information analysis unit 110 and a memory 111 are provided. The memory 111 also includes a video storage area 112 for storing video data, a data broadcast storage area 113 for storing data broadcasts, and a link information storage area 114 for storing link information.

  Here, the link information is a telephone number, a mail address, a URI (Uniform Resource Identifier), etc. included in the BML document of the data broadcast. An e-mail address that can be used to send e-mail (input as a destination), a URI that can be changed by activating a browser application.

  The TV control unit 102 receives an RF (Radio Frequency) signal of a digital broadcast wave via the antenna 101. Further, a frequency (channel) designation command is input from the control unit 106, and the received RF signal is tuned based on the frequency designation command. Specifically, the TV control unit 102 converts the frequency of the RF signal into a channel signal, demodulates the channel signal, and generates a TS signal of MPEG (Moving Picture Coding Experts Group). Then, the TV control unit 102 detects an audio packet, a video packet, a data broadcast packet, etc. based on the packet ID in the TS signal, and decodes each packet to generate audio data, video data, a data broadcast, etc. To do. The TV control unit 102 outputs audio data to a speaker (not shown), video data to the display unit 103, and data broadcast to the data broadcast processing unit 105.

  The data broadcast processing unit 105 receives the data broadcast from the TV control unit 102, creates screen display data, and outputs the screen display data to the display unit 103. The data broadcast processing unit 105 processes a script included in the input data broadcast.

  The display unit 103 receives video data from the TV control unit 102, screen display data from the data broadcast processing unit 105, and a control command from the control unit 106, and the input video data and screen are input based on the control command. A screen image is created from the display data, the screen image is displayed on the screen of the LCD 104, and the video data is stored in the video buffer and the screen display data is stored in the data broadcast buffer. Further, the display unit 103 uses the video data stored in the video buffer and the screen display data (that is, data broadcast) stored in the data broadcast buffer as screen data, as a still image capture unit 109 and a link information analysis unit 110. Output to.

  The still image capture unit 109 receives the screen data created by the display unit 103 from the video data and the screen display data, and converts the screen data into a still image. Then, the still image capture unit 109 stores the still image file of the video data in the video storage area 112 of the memory 111 and the still image file of the data broadcast in the data broadcast storage area 113 of the memory 111. Here, when the still image is stored, the still image capturing unit 109 describes information (related information) for associating each other in each still image file.

  Here, the related information described in the still image file by the still image capture unit 109 may be a file name or any information that can uniquely identify each other. For example, in the case of a JPEG file, the still image capture unit 109 may describe related information in a comment marker of the JPEG file. In the case of a PNG file, the still image capture unit 109 may prepare a unique chunk and describe related information in the chunk. When the related information cannot be described in the still image file, the still image capturing unit 109 creates a file describing the related information and stores the file in the memory 111 as the related information file. Good.

  The link information analysis unit 110 inputs screen data from the display unit 103, analyzes and extracts link information included in the data broadcast for the currently displayed data broadcast included in the screen data, and extracts the link information. The data is stored in the link information storage area 114 of the memory 111.

  The control unit 106 outputs a frequency designation command indicating the timing for tuning the received RF signal to the TV control unit 102, and outputs a control command for creating a screen image to be displayed on the LCD 104 to the display unit 103. Then, processing for controlling the entire digital broadcast receiving apparatus 100 is performed.

  The telephone unit 108 transmits and receives voice information, mail information, and the like, such as transmitting a telephone number via the antenna 107, and realizes a general telephone function and mail function.

  FIG. 2 is a sequence diagram in the case where video and data broadcasting are stored as separate still images. When the user performs a save operation, the still image capture unit 109 illustrated in FIG. 1 receives a control command from the control unit 106 and acquires video data from the video buffer of the display unit 103 based on the control command. Then, it is converted into an image file such as JPEG, and stored in the video storage area 112 of the memory 111 as a still image of the video data (step S10).

  Then, the still image capture unit 109 checks the presence / absence of the data broadcast (checks whether the data broadcast is stored in the data broadcast buffer of the display unit 103) (step S11). The data broadcast is acquired from the data broadcast buffer of the display unit 103, converted into an image file such as JPEG, and stored in the data broadcast storage area 113 of the memory 111 as a still image of the data broadcast (step S12). On the other hand, if there is no data broadcast, the process ends.

  In steps 10 and 12, as described above, the still image capture unit 109 saves the still image by describing the related information in the still image file and the like. Associate with broadcast still images.

  Here, when the still image capture unit 109 acquires each screen data from the video data buffer or the data broadcast buffer of the display unit 103, not only the partial screen data displayed on the LCD 104, All screen data configured as one screen is acquired.

  FIG. 3 is an image diagram showing a still image stored in the memory 111. The screen displayed on the LCD 104 is shown on the left side of FIG. It can be seen that the video is displayed at the top of the screen and the data broadcast is displayed at the bottom. In this case, the still image (video still image) of the video data shown in the center of FIG. 3 is stored in the video storage area 112, and the still image of the data broadcast (data broadcast still image) shown on the right side of FIG. It is stored in the broadcast storage area 113. As described above, the stored data broadcast still images are not only a part of the data broadcasts displayed on the LCD 104 but all data broadcast still images configured as one screen.

  In FIG. 2, the still image capture unit 109 stores the still image as a separate file in the image storage area 112 of the memory 111 and the data broadcast still image as an individual file in the data broadcast storage area 113 of the memory 111. However, as shown in FIG. 4, it may be stored in the memory 111 as one still image file.

  FIG. 5 is a sequence diagram in the case of storing link information in addition to a video still image and a data broadcast still image. Comparing the sequence diagram shown in FIG. 5 with the sequence diagram shown in FIG. 2, step 20 corresponds to step 10, step 21 to step 11, and step 25 corresponds to step 12. The sequence diagram of FIG. It is different in that steps 22 to 24 are newly added in addition to FIG.

  In FIG. 5, steps 20 and 21 are the same as steps 10 and 11 shown in FIG. If the still image capture unit 109 determines in step 21 that there is a data broadcast, all the files that make up the data broadcast currently displayed on the LCD 104 (for example, a BML document or a BML document is referred to). JPEG files, external files such as style sheets) are specified (step S22). Then, the still image capture unit 109 searches for link information from the specified file (text) (step S23). If link information is found, the link information is extracted and stored in the link information storage area 114 of the memory 111 (step S24). In this case, the position (coordinates) where the link information of the data broadcast is displayed is also saved. The still image capture unit 109 searches for link information for all the files (sentences) specified in step 22 and repeats the processes in steps 23 and 24. Step 25 is the same as step 12 shown in FIG.

  In steps 20, 24, and 25, the still image capture unit 109 saves the still image and the link information by describing the related information in each file so that the video still image and the data broadcast still image are stored. And link information.

  FIG. 6 is a sequence diagram when link information is emphasized and stored. Comparing the sequence diagram shown in FIG. 6 with the sequence diagram shown in FIG. 5, steps 30 to 34 correspond to steps 20 to 24, and step 38 corresponds to step 25, respectively. The sequence diagram of FIG. In addition to the above, Steps 35 to 37 are newly added.

  In FIG. 6, steps 30 to 34 are the same as steps 20 to 24 shown in FIG. When there is link information in step 35, the still image capture unit 109 changes the style information in the character string of the link information to the style information specified in advance (step S36). Then, steps 35 and 36 are repeated for all link information. Here, the style information refers to information indicating, for example, color, size, and display mode (blinking, lighting, etc.).

  The still image capture unit 109 causes the data broadcast processing unit 105 to process the file identified in step 32 again to create new screen display data (step S37). Specifically, the data broadcast processing unit 105 creates new screen display data from the data broadcast including link information whose character string style information has been changed. Then, the still image capture unit 109 acquires the new screen display data (that is, data broadcast), converts it into an image file such as JPEG, and stores it in the data broadcast storage area 113 of the memory 111 as a data broadcast still image. (Step S38).

  In steps 30, 34, and 38, the still image capture unit 109 saves the still image and the link information by describing the related information in each file, for example, to store the video still image and the data broadcast still image. And link information.

Next, a method for displaying a video still image, a data broadcast still image, and link information on the LCD 104 will be described. The following three display modes are realized according to user operations.
(1) Display a video still image or a data broadcast still image.
(2) A video still image and a data broadcast still image are displayed on one screen.
(3) A video still image or a data broadcast still image and link information are displayed.

  In the case of (1) and (2), a desired still image file (either one file or both files) is called from the menu displayed on the LCD 104 so that the associated still image file can be easily displayed. . Specifically, referring to FIG. 1, when there is an operation (1) or (2) from the user, display unit 103 inputs the operation content from an operation unit (not shown). The display unit 103 then reads the associated video still image or data broadcast still image from the memory 111 and displays it on the LCD 104 in the case of (1) according to the operation content. On the other hand, in the case of (2), the associated video still image and data broadcast still image are read from the memory 111 and displayed on the LCD 104.

  In the case of (3), for example, as shown in FIG. 7, on the LCD 104, a still image is displayed at the upper part, and link information is displayed as a list at the lower part. Specifically, referring to FIG. 1, when there is an operation (3) from the user, display unit 103 inputs the operation content from an operation unit (not shown). Then, the display unit 103 reads the associated data broadcast still image and link information from the memory 111 according to the operation content, and displays them on the LCD 104.

  In (3), when the link information in the link information display unit shown in FIG. 7 is selected by the user's operation, the display unit 103 is based on the position (coordinates) stored together with the link information. The data broadcast still image displayed on the upper part is scrolled to the position where the link information exists, and data including the link information is displayed. In this case, the display unit 103 may instantaneously display the data before and after the data broadcast still image including the link information instead of displaying the sucrose.

  In (1) to (3), when a telephone number is displayed as link information on the LCD 104, the telephone number is transmitted by a user's selection operation. Specifically, when the phone number is selected by the user while the screen shown on the left side of FIG. 8 is displayed on the LCD 104, the display unit 103 displays the screen shown in the center of FIG. Prompt for confirmation. Then, when the user performs a confirmation operation, the display unit 103 displays a screen shown on the right side of FIG. 8, and the telephone unit 108 transmits the telephone number. That is, when there is a character string (link information) that can be recognized as a telephone number in the data broadcast code, the digital broadcast receiving apparatus 100 displays the telephone number on the LCD 104 and the telephone number is selected by the user's selection operation. To send. For example, “TEL: *” (* is a continuous ASCII number and full-width number, #, *, 0-9, from 3 digits to 36 digits, and TEL: is half-width. .) Is recognized as the link information of the telephone number.

  In the above (3), the telephone number is transmitted. However, in the digital broadcast receiving apparatus 100 having a mail function, when a mail address is displayed as link information on the LCD 104, a user's selection operation is performed. A mail may be transmitted to the mail address. Alternatively, the mail (application) may be activated by entering the mail address as the destination.

  As described above, according to the digital broadcast receiving apparatus 100 according to the embodiment of the present invention, the still image capture unit 109 stores the data broadcast currently being viewed by the user in the memory 111 as a still image file. Accordingly, the digital broadcast receiving apparatus 100 having a function of displaying a still image can display a data broadcast. Further, since it is stored as a still image file, it can be moved to the outside by attaching the still image file of the data broadcast to an e-mail or the like. A device that has received this file can display a still image without a BML browser (application). Further, even for data broadcasting that is dynamically converted, such as quizzes and questionnaires, the still image capture unit 109 can be stored as a still image file including user operations. Therefore, by viewing the still image, the user can immediately view the image desired by the user without performing any operation.

  Further, the still image capture unit 109 stores the video still image and the data broadcast still image in the memory 111 as separate files. As a result, the video data can be stored in a large size, and all data broadcasts associated therewith can be stored.

  Further, the still image capture unit 109 associates the video still image and the data broadcast still image with each other and stores them in the memory 111. This can prevent the data from becoming complicated. In addition, since the still image capture unit 109 stores the video still image and the data broadcast still image together, the user can grasp the contents of the broadcast content compared to the case where only one still image is stored. It becomes easy and it becomes easy to remember the contents.

  The still image capture unit 109 also stores link information in the data broadcast in the memory 111. Thereby, handling of link information becomes easy.

  The still image capture unit 109 stores the data broadcast still image in which the link information is emphasized in the memory 111. This makes it possible to present link information as important information to the user in an easily understandable state. Further, since the still image capture unit 109 also stores the position of the link information in the memory 111, the position of the link information in the data broadcast can be specified, scroll control and the like become easy, and the link information Can be presented to the user as important information in a more easily understandable state.

  The display unit 103 displays the link information on another independent area when displaying the link information on the screen of the LCD 104. This makes it possible to present the link information as important information to the user in a more easily understandable state. Also, the user can find important information more easily.

  The present invention has been described with reference to the embodiment. However, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit and intention of the present invention. For example, in the above-described embodiment, the description has been made assuming a mobile portable terminal device, but the present invention is not limited to the mobile type and is not limited to the mobile terminal device.

It is a block diagram which shows the structure of the digital broadcast receiver by embodiment of this invention. It is a sequence diagram in the case of storing a video and a data broadcast as individual still images. It is an image figure which shows the still image preserve | saved at memory. It is an image figure of a still picture at the time of saving a picture and data broadcasting as one still picture. It is a sequence diagram in case link information is also preserve | saved. It is a sequence diagram in the case of linking and saving link information. It is an image figure at the time of displaying link information under the display area of a data broadcasting still image. It is an image figure in the case of making a telephone call from a selected telephone number.

Explanation of symbols

100 Digital Broadcasting Reception Device 101, 107 Antenna 102 TV Control Unit 103 Display Unit 104 LCD
105 Data Broadcast Processing Unit 106 Control Unit 108 Telephone Unit 109 Still Image Capture Unit 110 Link Information Analysis Unit 111 Memory 112 Video Storage Area 113 Data Broadcast Storage Area 114 Link Information Storage Area

Claims (2)

Detecting means for detecting a video and a data broadcast related to the video from the received digital broadcast wave;
When a storage operation is performed, based on the operation, a storage unit that stores the detected video and data broadcast as separate still images, respectively,
When storing the still image of the data broadcast, when the storage operation is performed by the user , the storage unit sets all data configured as one screen, not only the partial screen data being displayed, as a still image. A digital broadcast receiver characterized by storing. Receiving a digital broadcast wave;
Detecting a video and a data broadcast related to the video from the received digital broadcast wave;
A storage operation is performed, and based on the operation, the detected video and data broadcast are each stored as separate still images, and
In the storing step, when storing a still image of the data broadcast, if the user performs a storing operation, all the data configured as one screen, not only the partial screen data being displayed, is a still image. A digital broadcast receiving method characterized by storing as:

Images