JP2011146820A - Digital broadcast receiver, digital broadcast receiving method, digital broadcast reception program and computer readable recording medium, and digital broadcast display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital broadcast receiver capable of referring to a past data broadcast or information related to the data broadcast from a network service on an external network. <P>SOLUTION: The digital broadcast receiver 10 receives a digital broadcast in which data broadcast is multiplexed on a broadcast program. The digital broadcast receiver 10 includes an extracting part 31 for extracting information specifying the broadcast program and information that specifies one or more data broadcast contents multiplexed on the broadcast program from the digital broadcast, and storing the information as data specification information in a data specification information-storing part 32 while associating the information items with each other. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a digital broadcast receiving apparatus, a digital broadcast receiving method, a digital broadcast receiving program, and a digital broadcast receiving method capable of receiving a digital broadcast in which various data such as characters, graphics, and still images are multiplexed on video data and audio data of a broadcast program The present invention relates to a computer-readable recording medium and a digital broadcast display device.

  In digital broadcasting, together with video data and audio data of a broadcast program, for example, data related to the broadcast content of the broadcast program, text data, still image data, or the like is transmitted together with the broadcast program as a data broadcast. can do.

  Such data broadcast data is, for example, data such as weather forecasts and news, or data representing information related to broadcast programs, and data broadcast data representing such information is video data of broadcast programs, Provided to the user together with the audio data.

  Data for data broadcasting is multiplexed with video data and audio data of a broadcast program transmitted at the same time, and transmitted from the broadcasting station to the digital broadcast receiving device together with the video data of the broadcast program.

  When a digital broadcast receiving apparatus receives a digital broadcast in which data broadcast data is multiplexed, the digital broadcast is demultiplexed to obtain the data broadcast multiplexed on the video data of the broadcast program of the digital broadcast. Identify data for use.

  For example, the digital broadcast receiving apparatus stores the data broadcast data multiplexed in the video data of the broadcast program in a storage device provided in the digital broadcast receiving apparatus. Then, the digital broadcast receiving apparatus appropriately presents the data broadcasting data stored in the storage device to the user using a display device provided therein, for example, in accordance with an instruction from the user.

  By the way, data for data broadcasting is often updated with time, and is often transmitted periodically from a broadcasting station. For this reason, when the digital broadcast receiving apparatus receives newly updated data, the digital broadcast receiving apparatus normally overwrites the old data stored in the storage device until then with the newly updated data. is there.

  Then, new data stored in the storage device is read from the storage device based on an instruction from the user and displayed to the user using the display device.

  In this way, the user can view the latest data broadcast.

  However, in the digital broadcast receiving apparatus described above, when newly updated data is received, the old data stored until then is deleted from the storage device.

  That is, there is a problem that the user cannot refer to the contents of past data broadcasts.

  For such a problem, a technique has been proposed in which the type of data to be received is identified, the data itself is stored in association with time information, and the same type of data can be read and referenced in the future. (For example, refer to Patent Document 1).

JP 2008-252732 A (released on October 16, 2008)

  However, in the digital broadcast receiving device described in Patent Document 1, all data from the past to the present must be stored in its own storage device for the data broadcasting data to be received.

  This increases the storage capacity of the storage device provided in the digital broadcast receiving apparatus, which in turn increases the manufacturing cost of the digital broadcast receiving apparatus.

  By the way, various information exists on a network such as the Internet, and it is conceivable that information corresponding to the contents of past data broadcasting exists.

  Therefore, in order to prevent the problem of an increase in storage capacity in the digital broadcast receiving device described in Patent Document 1, the digital broadcast receiving device can use a network service existing on a network such as the Internet. It is effective to do. This is because it is possible to refer to past data broadcasts by using the network service without storing the data broadcasts in the storage device of the digital broadcast receiving device.

  Needless to say, it is most desirable that the use of such network services can be realized without changing the configuration of an existing broadcasting system including a broadcasting station and a digital broadcasting receiving device.

  In view of the above problems, an object of the present invention is to provide a digital broadcast receiving apparatus, a digital broadcast receiving method, and a digital broadcast capable of referring to past data broadcast or information related to the data broadcast from a network service on an external network. A receiving program, a computer-readable recording medium, and a digital broadcast display device are provided.

  In order to achieve the above object, a digital broadcast receiving apparatus according to the present invention is a digital broadcast receiving apparatus that receives a digital broadcast in which a data broadcast is multiplexed on a broadcast program, and identifies the broadcast program from the digital broadcast. Extracting means for extracting the information to be identified and the information for identifying the contents of one or a plurality of data broadcasts multiplexed in the broadcast program, and storing them in the storage unit as data specifying information while associating the information with each other It has.

  In the above digital broadcast receiving apparatus, when receiving a digital broadcast in which a data broadcast is multiplexed on a broadcast program, information for specifying the broadcast program and one or a plurality of data multiplexed in the broadcast program Data specifying information associated with information specifying broadcast contents can be stored in the storage unit.

  For this reason, based on the data specifying information stored in the storage unit, it is possible to refer to past data broadcasts or information related to the data broadcasts from a network service on an external network.

  The information for specifying the broadcast program includes information representing at least one of the program name, broadcast date and time, broadcast station, and channel of the broadcast program, and information for specifying the contents of the one or more data broadcasts, respectively. Each of the information representing the type of the content of the one or more data broadcasts, the information representing the outline of the content of the one or more data broadcasts, and the content of the one or more data broadcasts, respectively It is preferable that at least one of the information which controls the process to display is included.

  In this case, the user can specify the desired data broadcast based on the information specifying the broadcast program and the information specifying the content of the data broadcast.

  In particular, the user can easily specify the data broadcast based on the information indicating the content type of the data broadcast and the information indicating the outline of the content among the information specifying the content of the data broadcast. . In addition, as information for controlling the process of displaying the content of the data broadcast, if information related to data update of a certain data broadcast (for example, update date / time information) is included within the broadcast time of the corresponding broadcast program, the update is performed. The content of the previous data broadcast can be specified.

  It is preferable that the data specifying information is associated with a broadcast date and time of the broadcast program in which the data broadcast specified by the data specifying information is multiplexed.

  In this case, the user can specify a desired data broadcast based on the data specifying information.

  For example, if the content of the data broadcast desired by the user is in a program (for example, variety, drama, etc.) broadcast with the same title every week, if broadcast date information is associated, It is possible to easily specify whether the data is broadcast data.

  It is preferable that the apparatus further comprises search means for searching for the network service on the network by transmitting a search request using the data specifying information as a search key to a search server on the network.

  In this case, a network server on the network can be searched using a search server on the network, and many network services can be targeted for the search, so that the data broadcast to be referred to can be surely hit.

  A digital broadcast display device according to the present invention includes the above digital broadcast receiving device.

  In the above digital broadcast display device, a digital broadcast display device including the above digital broadcast receiving device is realized.

  A digital broadcast receiving method according to the present invention is a digital broadcast receiving method for receiving a digital broadcast in which a data broadcast is multiplexed with a broadcast program, the information specifying the broadcast program from the digital broadcast, and the broadcast program There is a step of extracting information for specifying each of the multiplexed contents of one or a plurality of data broadcasts and storing them in the storage unit as data specifying information while associating the information.

  In the above digital broadcast receiving method, when receiving a digital broadcast in which a data broadcast is multiplexed with a broadcast program, information for specifying the broadcast program and one or more data multiplexed in the broadcast program Data specifying information associated with information specifying broadcast contents can be stored in the storage unit.

  For this reason, based on the data specifying information stored in the storage unit, it is possible to refer to past data broadcasts or information related to the data broadcasts from a network service on an external network.

  The digital broadcast receiving apparatus may be realized by a computer. In this case, a digital broadcast receiving program for causing the digital broadcast receiving apparatus to be realized by a computer by causing the computer to operate as the respective means, and A computer-readable recording medium on which is recorded also falls within the scope of the present invention.

  As described above, the digital broadcast receiving apparatus of the present invention is a digital broadcast receiving apparatus that receives a digital broadcast in which a data broadcast is multiplexed on a broadcast program, and information that identifies the broadcast program from the digital broadcast; Extraction means for extracting information specifying one or more data broadcast contents multiplexed in the broadcast program and storing them in the storage unit as data specifying information while associating the information. .

  The digital broadcast receiving method of the present invention is a digital broadcast receiving method for receiving a digital broadcast in which a data broadcast is multiplexed on a broadcast program as described above, and is information for specifying a broadcast program from the digital broadcast. And information specifying each of the contents of one or a plurality of data broadcasts multiplexed in the broadcast program, and storing them in the storage unit as data specifying information while associating the information with each other ing.

  Therefore, it is possible to refer to past data broadcasts or information related to the data broadcasts from a network service on an external network.

It is a block diagram which shows schematic structure of the digital broadcast receiver which concerns on one Embodiment of this invention. It is a figure for demonstrating the digital broadcast screen of the said digital broadcast receiver. It is a block diagram which shows the structure of the extraction part of the said digital broadcast receiver. It is a figure which shows the specific example of the data specific information extracted by the said extraction part. It is a flowchart for demonstrating operation | movement of the said extraction part. It is a block diagram which shows the structure of the search control part of the said digital broadcast receiver. It is a figure which shows the specific example of the service search information produced | generated by the said search control part. It is a flowchart for demonstrating operation | movement of the said search control part.

  An embodiment of the present invention will be described below with reference to FIGS.

(Digital broadcast receiver)
A digital broadcast receiving apparatus according to an embodiment of the present invention is used in, for example, a television set, a mobile phone, a mobile PC, and a PDA that receive a digital broadcast and display the contents of the digital broadcast.

  FIG. 1 is a block diagram showing a schematic configuration of a digital broadcast receiving apparatus (digital broadcast display apparatus) 10 according to an embodiment of the present invention.

  As shown in FIG. 1, a digital broadcast receiving apparatus 10 according to an embodiment of the present invention includes a receiving unit 11, a demodulating unit 12, an error correcting unit 13, a separating unit 21, a control unit 22, and audio processing. Unit 23, video processing unit 24, graphic processing unit 25, audio output control unit 26, display control unit 27, audio output unit 28, display unit 29, extraction unit (extraction means) 31, data A specific information storage unit 32, a search control unit (search unit) 33, a service search information storage unit 34, a search processing unit (search unit) 35, a browser 36, and an input unit 37 are provided.

  The receiving unit 11 receives a digital broadcast via the antenna 41. The digital broadcast received via the antenna 41 is transmitted from, for example, a broadcast station or a relay station that relays the digital broadcast transmitted therefrom.

  Here, this digital broadcast is, for example, various digital broadcasts such as BS (Broadcast Satellite) / CS (Communication Satellite) digital broadcasting and terrestrial digital broadcasting. In addition to broadcast programs using video data and audio data, video data and audio data other than broadcast programs, still image data, text data, and control data for controlling the temporal and spatial arrangement of these data Data broadcasting including (for example, BML (Broadcast Markup Language) data) is also transmitted at the same time. That is, in this digital broadcasting, data for data broadcasting is multiplexed with video data and audio data (broadcast program data) of the broadcast program.

  The demodulator 12 demodulates the digital broadcast received by the receiver 11. The digital broadcast received by the receiving unit 11 is subjected to modulation processing for radio communication using radio waves when transmitted from a broadcast station or a relay station. For this reason, the demodulator 12 demodulates the modulated digital broadcast and restores the digital broadcast.

  When the digital broadcast is transmitted from the broadcast station or the relay station to the digital broadcast receiving apparatus 10, the error correction unit 13 finds an error such as a mismatch between the transmission data and the reception data, and if possible, the error Is corrected.

  Further, even if the error correction unit 13 finds an error between the transmission data and the reception data, the error correction unit 13 may request another transmission without correcting the error.

  The separation unit 21 separates the demodulated digital broadcast into control data, audio data, video data, and graphic data. Then, the separation unit 21 outputs the control data to the control unit 22, the audio data to the audio processing unit 23, the video data to the video processing unit 24, and the graphic data to the graphic processing unit 25. In addition, the separation unit 21 outputs control data, video data, and graphic data, excluding audio data, to the extraction unit 31.

  Here, the control data output to the control unit 22 is used to control the temporal and spatial arrangement of each data such as video data and audio data of broadcast programs, other video data, still image data, and text data. For example, BML data.

  The audio data output to the audio processing unit 23 is audio data of a broadcast program. The video data output to the video processing unit 24 is video data of a broadcast program.

  The graphic data output to the graphic processing unit 25 is data broadcasting data multiplexed with video data or audio data of a broadcast program. This graphic data is, for example, video data, still image data, or text data.

  The control unit 22 controls audio output processing by the audio output control unit 26 and video display processing by the display control unit 27 based on the control data input from the separation unit 21.

  The sound processing unit 23 performs sound processing such as adjusting and setting the sound quality and volume of the broadcast program sound and operation sound on the sound data input from the separation unit 21. Then, the voice processing unit 23 outputs the voice data after the voice processing to the voice output control unit 26.

  The video processing unit 24 performs video processing such as noise reduction, sharpness adjustment, and contrast adjustment on the video data input from the separation unit 21. Then, the video processing unit 24 outputs the video data after the video processing to the display control unit 27.

  The graphic processing unit 25 constructs, for example, graphic data and character data from the graphic data input from the separation unit 21, and displays the position information, time information, and links on the screen, together with the information, The data is output to the display control unit 27.

  The audio output control unit 26 outputs the audio data input from the audio processing unit 23 to the audio output unit 28 and performs an audio output process so as to be output as audio. Further, the audio output control unit 26 performs the audio output process based on an instruction from the control unit 22.

  The display control unit 27 outputs the video data input from the video processing unit 24 and the graphic data input from the graphic processing unit 25 to the display unit 29 and performs display processing so as to be displayed on the display unit 29. Do. Further, the display control unit 27 performs display processing based on an instruction from the control unit 22.

  The display control unit 27, for example, receives signals from a video processing unit 24 that controls video data for configuring digital broadcasting and a graphic processing unit 25 that controls graphic data for configuring data broadcasting. Is used to display broadcast programs and data broadcasts based on control signals from the control unit 22. Further, as will be described later, the display control of the result of searching the network service server 53 on the network 51 and the service content provided by the network service server 53 is also performed. In this display, as will be described later, a browser 36 such as an HTML browser is used as means for displaying the results.

  Further, as will be described later, when the user searches for the network service server 53 that provides the past data broadcast, the display control unit 27 also displays data specifying information for specifying the past data broadcast.

  As the audio output unit 28, a known speaker that reproduces the audio data input from the audio output control unit 26 as audio can be used. The display unit 29 may be a known liquid crystal display, CRT, or plasma display that displays video data and graphic data input from the display control unit 27 as video.

  The extraction unit 31 acquires the demodulated digital broadcast, and extracts broadcast specifying information for specifying various data broadcasting data multiplexed in the video data and audio data of the broadcast program.

  The extraction unit 31 is multiplexed with the audio data and video data of the broadcast program from the control data, the video data, the audio data, and the graphic data constituting the demodulated digital broadcast. Information capable of specifying data for data broadcasting (hereinafter referred to as “data specifying information”) is extracted and stored in the data specifying information storage unit 32.

  Here, the data specifying information is multiplexed with the contents of the broadcast program and the broadcast program among the control data, the video data, the audio data, and the graphic data separated by the separation unit 21. This is information represented by other data excluding the contents of the data broadcast. For example, the broadcast program name, broadcast date and time, broadcast station information, and content type of the broadcast program of the digital broadcast.

  Further, as the data specifying information, for example, the following information can be used.

  For example, in the MPEG2 standard, encoding of video data and audio data, and a method of multiplexing the encoded video data and audio data and additional information and transmitting the multiplexed data as a TS (Transport Stream) are standardized.

  In particular, MPEG2 defines PSI (Program Specific Information) as additional information to be multiplexed, and ARIB (Association of Radio Industries and Businesses) has a configuration of EPG. Necessary SI (Service Information: program arrangement information) is defined.

  The PSI is information for realizing a function of automatically demultiplexing various multiplexed streams and combining them, and a PMT for specifying video / audio TS packets constituting a program (Program Map Table), and PAT (Program Association Table) for indicating the PID (Packet Identification: Packet Identification Information) of the TS packet transmitting the PMT.

  The data specifying information may also include information for controlling the timing of presenting the data broadcast, difference information distributed to update those information, and the like.

  Furthermore, the data specifying information is not limited to the information described above, and may be information that can specify the data broadcast multiplexed in the broadcast program.

  In addition, the above-described control data constituting the digital broadcast includes information for specifying a network service providing the multiplexed data broadcast, for example, location information (for example, URL) on an external network. Such location information can also be included in the data specifying information.

  Furthermore, if the broadcast program is regularly broadcast at a certain date and time, such as a drama or variety, in addition to the data broadcast currently being broadcast, the data broadcast for the previous broadcast may be received together. In this case, information that can specify the data broadcast for the previous broadcast in addition to the current broadcast can also be included in the data specification information.

  The data specifying information storage unit 32 stores the data specifying information extracted by the extracting unit 31. The data specifying information storage unit 32 can be appropriately selected from a known magnetic disk device such as a hard disk drive or a known memory device such as a semiconductor memory.

  The data identification information storage unit 32 multiplexes the data identification information extracted by the extraction unit 31 and the broadcast date and time of the digital broadcast including the data identification information, for example, the broadcast start date and time and the broadcast end date and time of the broadcast program. The update date and time of the data broadcast that has been converted may be stored in association with each other. By doing so, for example, data broadcasts broadcast in the same time zone can be associated with each other. For example, the program name of a broadcast program that the user has been viewing can be associated with the data information of the data broadcast presented in the broadcast time zone of the program, thereby making it possible to read related data.

  Also, information such as URLs corresponding to the contents of data broadcasts may be stored as information related to a program when categorized for each corresponding program, or URL information may be stored separately. Further, information such as weather forecast and traffic information that is updated regardless of the program content may be stored separately from information related to the program content.

  Further, the data specifying information stored in the data specifying information storage unit 32 may be automatically deleted when a certain storage period has passed.

  The search control unit 33 acquires the data specifying information stored in the data specifying information storage unit 32 when a request for displaying the data specifying information is input from the user. Then, the search control unit 33 outputs the data specifying information acquired from the data specifying information storage unit 32 to the display control unit 27. The display control unit 27 displays the data specifying information input from the search control unit 33 to the user using the display unit 29.

  In addition, when a request for selecting data specifying information is input from the user, the search control unit 33 generates service search information based on the data specifying information displayed to the user.

  Here, the service search information is information for searching for network services provided by a number of network service servers (NS servers) 53 existing on the network 51. The service search information is information including, as a search key, data specifying information requested to be selected by the user among the data specifying information displayed to the user.

  The service search information storage unit 34 stores service search information generated by the search control unit 33. The service search information storage unit 34 can be appropriately selected from a known storage device such as a magnetic disk device such as a hard disk drive or a semiconductor memory. The data specifying information storage unit 32 and the service search information storage unit 34 only need to be able to store necessary data, respectively, and may be realized by separate storage devices, or in a single storage device. You may implement | achieve by dividing | segmenting a storage area.

  The search processing unit 35 reads the service search information stored in the service search information storage unit 34 and transmits a search request to the search server 52 on the network 51 based on the read service search information. The search processing unit 35 includes a known communication unit (not shown) such as a network controller or a wireless communication device in order to communicate with the network 51.

  In addition, when the search processing unit 35 obtains a search result indicating the network service hit in the service search information from the search server 52, the search processing unit 35 outputs the search result to the browser 36.

  The browser 36 refers to the search result input from the search processing unit 35 and receives provision of the network service from the NS server 53 that provides the network service corresponding to the search result.

  The browser 36 acquires a past data broadcast corresponding to the service search information requested to be searched from the search server 52 by the network service provided by the NS server 53, and outputs the broadcast data to the display control unit 27. The display control unit 27 displays the data broadcast output from the browser 36 to the user using the display unit 29.

  The browser 36 may be an HTML browser or a BML browser. Any type of browser can be used as long as it displays the search result of the network service and the contents of the service and can be used by the user.

  The input unit 37 includes, for example, a keyboard and a numeric keypad, and various requests from the user are input using the keyboard and the like. Communication between the input unit 37 and the search control unit 33 may be either wireless communication or wired communication. In addition, the input unit 37 may include various buttons such as selecting a kana number displayed on the display unit 29 with an arrow button or a selection button and determining an input with the determination button.

  The network 51 is typically the Internet, but any network such as a LAN, WAN, or intranet can be used.

  The search server 52 is a server that functions as a known portal site. The search server 52 has a function of searching for a network service that matches the service search information from among network services provided by each of a number of NS servers 53 on the network 51.

  The search server 52 stores at least information for searching the network service and information (URL, summary information, etc.) of the NS server 53 that provides various network services associated with the information for searching the network service.

  The search server 52 receives information for searching the network service, confirms the information, and provides information of the NS server 53 that provides the corresponding network service.

  The network service server 53 provides past data broadcasting via a network such as the Internet.

  The network service server 53 stores the contents of data broadcasting in existing digital broadcasting. For example, data of data broadcasting being broadcast may be automatically saved.

  The network service server 53 may provide information close to the content of the past data broadcast and corresponding information, for example, when the same content as the past data broadcast does not exist.

(Digital broadcasting screen)
Here, the digital broadcast screen of the digital broadcast receiving apparatus 10 will be briefly described. FIG. 2 is a diagram for explaining a digital broadcast screen of the digital broadcast receiving apparatus 10.

  As shown in FIG. 2A, in the digital broadcast receiving apparatus 10, when a request for displaying a data broadcast is input from the user while viewing a digital broadcast program, the digital broadcast receiving apparatus 10 is shown in FIG. Thus, the initial screen of data broadcasting is displayed.

  When a request for selecting a news frame is input from the user, a news screen is displayed as shown in FIG. In FIG. 2C, the broadcast program screen is reduced and displayed on the upper left.

  Then, when the user inputs a request to finish the selection of the news frame and display only the broadcast program again, the screen of only the first broadcast program is displayed as shown in FIG. become.

(Extractor)
Next, the configuration and operation of the extraction unit 31 will be described. FIG. 3 is a block diagram illustrating a configuration of the extraction unit 31.

  As illustrated in FIG. 3, the extraction unit 31 includes a data reading unit 61, an item determination unit 62, a data specific information item list 63, and a specific information generation unit 64.

  The data reading unit 61 reads the control data, the video data, and the graphic data constituting the demodulated digital broadcast, and outputs the reading result to the item determination unit 62.

  For example, the data reading unit 61 converts each data other than the text information into text data, grasps all the texts described in each data, and uses the grasped result as the above read result as the item determining unit 62. Output to. In addition, if the data reading unit 61 is data (text data) such as PSI or SI, the data reading unit 61 grasps all the texts described in the data without converting them as described above. .

  The data reading unit 61 executes reading by analyzing a character string or the like in each data.

  The item determination unit 62 determines the presence / absence of text corresponding to the item of the data specifying information based on the reading result input from the data reading unit 61. Then, when there is a text corresponding to the item of the data specifying information, the item determination unit 62 acquires detailed information about the text from data including the text. The item determination unit 62 outputs the text corresponding to the data identification information item and detailed information about the text to the specific information generation unit 64 as its determination result.

  The data specifying information item list 63 is a list of text groups preset as data specifying information items, and is selected and set in advance by the user, for example. The data specifying information item list 63 is provided to the item determining unit 62, and the item determining unit 62 includes the text described in the data specifying information item list 63 in the reading result input from the data reading unit 61. If there is a match, it is determined that the matched text is the text corresponding to the data specifying information item.

  Note that the item determination unit 62, for example, for information provided as SI such as the broadcast start time of the program and the program name, does not refer to the data specification information item list 63, but based on the data specification information. It may be determined that the item is applicable.

  The specific information generation unit 64 generates data specific information based on the determination result input from the item determination unit 62, and stores the generated data specific information in the data specific information storage unit 32.

  Here, a specific example of the data specifying information generated by the specifying information generating unit 64 and stored in the data specifying information storage unit 32 will be described. FIG. 4 is a diagram illustrating a specific example of the data specifying information.

  The data specifying information shown in FIG. 4 is stored in the data specifying information storage unit 32 using a list format in which each item is associated with detailed information about each item. Further, each item and detailed information about each item include “program related information” related to a broadcast program of digital broadcasting, “program non-related information” not related to the broadcast program, and “ID information about the digital broadcast” ”. This classification is included in any one of “program related information”, “program non-related information”, and “ID information” in each of the text groups preset as data specific information items in the data specific information item list 63, for example. If it is set in advance as to whether or not the item is determined, it can be executed when the item determination unit 62 determines.

  Specifically, the data specifying information is displayed based on information such as “program name” and “broadcast date” of the broadcast program. For example, the EPG format may be displayed in chronological order from information such as “program name” and “broadcast date” of the broadcast program viewed by the user. If digital broadcasting has SI information, it may be used. The user refers to and selects this display content to specify program information and date / time information of the desired data broadcast.

  When program information for specifying a data broadcast is selected by the user, the type of data broadcast displayed in the program is displayed next. This is, for example, information on the contents of the program (performers and program outline), weather forecast, traffic information, and the like. These pieces of information can be referred to by associating information such as data broadcast ID information and broadcast date and time displayed in the same time zone as the target program, and information and time information for specifying the data broadcast can be referred to. If the information is stored in association, the time information may be used.

  The user refers to such information and further narrows down the contents of the desired data broadcast. If there is more detailed data broadcasting information, it is narrowed down in the same way. At this time, if the URL is stored as data specifying information in the data specifying information storage unit 32 as information for specifying the data broadcast, the presence of the information is displayed together with the type of the data broadcast, and the user selects You may be able to do it.

  Information such as weather forecast and traffic information that is not directly related to the program contents may be identified by displaying the information separately from the program related information. For example, information to be displayed for specifying past data broadcasts is divided into “program-related information” such as program-related information, weather forecasts, traffic information, etc., and the user is allowed to select those categories. May be. Any display content may be used so long as the user can specify a desired data broadcast.

  Next, operations of the extraction unit 31, that is, operations of the data reading unit 61, the item determination unit 62, and the specific information generation unit 64 will be described. FIG. 5 is a flowchart for explaining the operation of each of the data reading unit 61, the item determination unit 62, and the specific information generation unit 64.

  As shown in FIG. 5, first, when the data reading unit 61 receives the control data, the video data, the audio data, and the graphic data constituting the demodulated digital broadcast, Data is read (step S101).

  In this step S101, for example, the data reading unit 61 converts each input data into text data, and grasps all texts described in each data.

  Then, the data reading unit 61 outputs the reading result to the item determining unit 62.

  Next, the item determination unit 62 determines the presence / absence of text corresponding to the item of the data specifying information based on the reading result input from the data reading unit 61 (step S102).

  In this step S102, when the reading result is input from the data reading unit 61, the item determining unit 62 refers to the data specifying information item list 63, and the text corresponding to the data specifying information item in the reading result. Judgment.

  If there is a text corresponding to the item of data specifying information (YES in step S103), the text and detailed information about the text are acquired from the reading result from the data reading unit 61 and output to the specific information generating unit 64. To do.

  Next, the specific information generation unit 64 generates data specific information based on the determination result input from the item determination unit 62, and stores the generated data specific information in the data specific information storage unit 32 (step S104).

  On the other hand, in all the reading results input from the data reading unit 61, if there is no text corresponding to the item of the data specifying information (NO in step S103), the extracting unit 31, that is, the data reading unit 61, the item determining unit 62, and the specifying The information generation unit 64 ends each operation.

(Search control unit)
Next, the configuration and operation of the search control unit 33 will be described. FIG. 6 is a block diagram illustrating a configuration of the search control unit 33.

  As shown in FIG. 6, the search control unit 33 includes a presentation unit 71, a search information matching unit 72, and a search information generation unit 73.

  The presentation unit 71 presents the data specifying information stored in the data specifying information storage unit 32 to the user when a request for referring to a past data broadcast is input from the user using the input unit 37. Then, the presenting unit 71 outputs the data specifying information extracted from the data specifying information storage unit 32 to the search information matching unit 72 and the search information generating unit 73.

  The presentation unit 71 takes out the data identification information from the data identification information storage unit 32 in accordance with a request about how to present the data identification information from the user, which is input using the input unit 37, and displays the data identification information from the display control unit 27, search collation Output to the unit 72 and the search information generation unit 73.

  For example, when a predetermined keyword is input from the user using the input unit 37, the presenting unit 71 takes out the data specifying information that hits the predetermined keyword from the data specifying information storage unit 32 and presents it to the user. May be.

  The search information collating unit 72 is used by the user in order to identify each of the plurality of data specifying information presented to the user by the presenting unit 71 and the data broadcast desired by the user input using the input unit 37. Check the selected data identification information.

  The search information collation unit 72 outputs, for example, data identification information selected by the user from among the plurality of data identification information presented by the presentation unit 71 as the collation result. At this time, the user may use the input unit 37 to input a request for selecting any one of the plurality of presented data specifying information.

  In short, the search information collating unit 72 uses the data specifying information desired by the user to specify the data broadcast among the plurality of data specifying information presented to the user by the presenting unit 71 as the search information. The data is output to the generation unit 73.

  The search information generation unit 73 generates service search information based on a plurality of pieces of data specifying information presented to the user by the presentation unit 71 and the collation result of the search information collation unit 72, and the generated service search information is Store in the service search information storage unit 34.

  Here, a specific example of the service search information generated by the search information generation unit 73 and stored in the service search information storage unit 34 will be described. FIG. 7 is a diagram illustrating a specific example of service search information.

  The service search information shown in FIG. 7 is a result of generating the service search information based on the “broadcast date” and “program name” desired by the user among the items of the data specifying information shown in FIG. . As shown in FIG. 7, from the “broadcast date and time” “October 23, 2009 12:00:00 to 13:00” and the “program name” “noon news” desired by the user, 6 Two data broadcasts are identified, for example.

  Then, the search information generation unit 73 specifies the “type” of each data broadcast from the data specification information item shown in FIG. 4, and specifies the “type” of the specified data type and the “detailed information” of the data specification information shown in FIG. The service search information for searching for the network service that provides each data broadcast is generated.

  Specifically, when the content of the data broadcast desired by the user is narrowed down, the data specifying information used for narrowing down may be generated as service search information for searching for a network service. For example, if the information is an outline of the program A and information such as a performer, information such as “program A”, “summary”, and “performer” may be used as service search information. Here, when program non-related information, for example, information such as weather forecast or traffic information, becomes the service search information, the program name may be excluded from the service search information.

  Next, operations of the search control unit 33, that is, operations of the presentation unit 71, the search information collation unit 72, and the search information generation unit 73 will be described. FIG. 8 is a flowchart for explaining the operations of the presentation unit 71, the search information collation unit 72, and the search information generation unit 73. Here, based on the data identification information shown in FIG. 4, the case where the service search information shown in FIG. 7 is generated is taken as an example, and the presentation unit 71, search information matching unit 72, and search information generation unit 73 Each operation will be described.

  As shown in FIG. 8, first, when a request for referring to a past data broadcast is input from the user using the input unit 37 (step S <b> 201), the presentation unit 71 performs data specification from the data specification information storage unit 32. Information is extracted (step S202).

  In step S <b> 202, the presentation unit 71 extracts data identification information from the data identification information storage unit 32 in accordance with a request regarding how to present the data identification information from the user. Here, the presentation unit 71 uses the input unit 37 to input the “broadcast date and time” of the digital broadcast including the data broadcast desired by the user and the “program name”. Then, the data specifying information that hits the “broadcast date and time” and the “program name” is extracted from the data specifying information storage unit 32.

  Next, the presentation unit 71 outputs the data specifying information acquired in step S202 described above to the display control unit 27, and similarly outputs it to the search information matching unit 72 and the search information generation unit 73 (step S203).

  In step S203, the data specifying information output from the presentation unit 71 is presented to the user using the display control unit 27 and the display unit 29.

  Next, the search information collating unit 72 collates each of the plurality of data specifying information presented to the user with the data specifying information selected by the user in order to specify the data broadcast desired by the user (step) S204).

  In step 204, the search information collation unit 72 is input with the “type” of data broadcast desired by the user using the input unit 37. And the search information collation part 72 is the data specific information which specifies the data broadcast in which the kind matches the "type" of the data broadcast which a user desires among the several data specific information input from the presentation part 71. And output to the search information generating unit 73.

  Further, in this step 204, the search information matching unit 72 may further input information that the user recognizes about the data broadcast desired by the user using the input unit 37. In this case, the search information collating unit 72 generates the search information generation information that is included in the “detailed information”, which is the information that the user recognizes among the plurality of data specifying information input from the presentation unit 71. What is necessary is to output to the unit 73.

  The search information generation unit 73 generates service search information based on a plurality of pieces of data specifying information presented to the user by the presentation unit 71 and the collation result of the search information collation unit 72, and the generated service search information is Store in the service search information storage unit 34 (step S205).

  Thus, according to the digital broadcast receiving apparatus 10 according to the present embodiment, the network service existing in the external network 51 can be referred to without changing the existing broadcast system. It becomes possible to search for network services corresponding to data broadcasting.

  In the digital broadcast receiving apparatus 10 according to the present embodiment, when recording means for recording a program such as an HDD recorder is connected, the recorded video information may be displayed together with the searched network service. . This can be done, for example, by referring to the program name and broadcast date / time information corresponding to the content of the data broadcast desired by the user and information such as the recorded video content program name, broadcast date / time, and recording date / time. In this case, the recorded video content and the search result may be displayed individually, or the video and data information may be arranged and displayed as in data broadcasting viewing, and the display method is not limited. . In this case, the recorded video content may be switched between display and non-display by the user. Further, when displaying the network service, it may be confirmed whether to display the video content together.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims. That is, embodiments obtained by combining technical means appropriately modified within the scope of the claims are also included in the technical scope of the present invention.

  Finally, each block of the digital broadcast receiving apparatus 10, in particular, the extraction unit 31 and the search control unit 33 may be configured by hardware logic, or may be realized by software using a CPU as follows.

  That is, the digital broadcast receiving apparatus 10 includes a CPU (central processing unit) that executes instructions of a control program that realizes each function, a ROM (read only memory) that stores the program, and a RAM (random access memory) that expands the program. ), A storage device (recording medium) such as a memory for storing the program and various data. An object of the present invention is a recording medium in which a program code (execution format program, intermediate code program, source program) of a control program of the digital broadcast receiving apparatus 10 which is software for realizing the functions described above is recorded so as to be readable by a computer. Can also be achieved by reading the program code recorded on the recording medium and executing it by the computer (or CPU or MPU). Then, such a CPU and a storage device may be integrated and integrated into a single chip (IC chip).

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and a compact disk-ROM / MO / MD / digital video disk / compact disk-R. A disk system including an optical disk, a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM can be used.

  Further, the digital broadcast receiving apparatus 10 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Further, the transmission medium constituting the communication network is not particularly limited. For example, even in the case of wired such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc., infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The present invention can also be expressed as follows. That is, the digital broadcast receiving apparatus according to the present invention is a digital broadcast display apparatus for receiving and displaying a digital broadcast, in order to identify the data broadcast by identifying the receiving means for receiving the digital broadcast and the information of the received data broadcast. Data broadcast information identifying means for storing the information in the storage means, storage means for storing information for specifying the data broadcast, and past data using the information for specifying the data broadcast. And at least search means for generating and searching for information for searching for a network service compatible with broadcasting.

  The information for specifying the data broadcast includes program information such as the program name of the data broadcast program, broadcast date and time, broadcast station and channel, the types of video, audio, still images, text, etc. constituting the data broadcast and their contents. It is preferable to include at least one or more pieces of information for specifying and control information necessary for performing arrangement and display thereof.

  Preferably, the data broadcast information identifying means associates information for specifying the data broadcast with date and time information and stores them in the storage means.

  The search means uses information related to the type of data of the data broadcast that is at least a search reference of the information for specifying the data broadcast to obtain information for searching a network service corresponding to the past data broadcast. It is preferable to generate and search for network services through a search server.

  A digital broadcast display device according to the present invention includes the above-described digital broadcast reception device, displays the digital broadcast received by the digital broadcast reception device, the network service search result, and the network service, and makes the service available Means.

  The present invention can be suitably used for a digital broadcast receiving apparatus that receives various digital broadcasts such as BS / CS digital broadcasts and terrestrial digital broadcasts.

10 Digital broadcast receiver (digital broadcast display device)
DESCRIPTION OF SYMBOLS 11 Reception part 12 Demodulation part 13 Error correction part 21 Separation part 22 Control part 23 Voice processing part 24 Video processing part 25 Graphic processing part 26 Voice output control part 27 Display control part 28 Voice output part 29 Display part 31 Extraction part (extraction means) )
32 Data specific information storage unit 33 Search control unit (search means)
34 Service Search Information Storage Unit 35 Search Processing Unit (Search Unit)
36 Browser 37 Input Unit 41 Antenna 51 Network 52 Search Server 53 Network Service Server 61 Data Reading Unit 62 Item Determination Unit 63 Data Specific Information Item List 64 Specific Information Generation Unit 71 Presentation Unit 72 Search Information Matching Unit 73 Search Information Generation Unit

Claims (8)

A digital broadcast receiver for receiving a digital broadcast in which a data broadcast is multiplexed with a broadcast program,
From the digital broadcast, information specifying a broadcast program and information specifying each of the contents of one or more data broadcasts multiplexed in the broadcast program are extracted, and the data is specified while associating the information. A digital broadcast receiving apparatus comprising an extraction unit that stores information in a storage unit. The information specifying the broadcast program includes information representing at least one of a program name, a broadcast date and time, a broadcast station, and a channel of the broadcast program,
The information specifying each of the one or more data broadcast contents is information indicating the type of the one or more data broadcast contents, and information indicating the outline of the one or more data broadcast contents, respectively. 2. The digital broadcast receiving apparatus according to claim 1, further comprising at least one of information for controlling processing for displaying each of the contents of the one or more data broadcasts.   3. The digital broadcast receiving apparatus according to claim 2, wherein the data specifying information is associated with a broadcast date and time of the broadcast program in which the data broadcast specified by the data specifying information is multiplexed.   4. The apparatus according to claim 1, further comprising search means for searching for a network service on the network by transmitting a search request using the data specifying information as a search key to a search server on the network. The digital broadcast receiving apparatus according to any one of the above.   A digital broadcast display device comprising the digital broadcast receiving device according to claim 1.   A digital broadcast receiving program for operating a computer as each means in the digital broadcast receiving apparatus according to claim 1.   A computer-readable recording medium on which the digital broadcast receiving program according to claim 6 is recorded. A digital broadcast receiving method for receiving a digital broadcast in which a data broadcast is multiplexed with a broadcast program,
From the digital broadcast, information specifying a broadcast program and information specifying each of the contents of one or more data broadcasts multiplexed in the broadcast program are extracted, and the data is specified while associating the information. A digital broadcast receiving method comprising a step of storing information in a storage unit.

Images